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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-17 12:00:23 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-17 12:00:23 -0400
commited09441dacc2a2d6c170aa3b1f79a041291a813f (patch)
tree95c35bdf4f0b679806984093dce627a66d0d7cf1 /drivers
parentb225ee5bed70254a100896c473e6dd8c2be45c18 (diff)
parent4c393e6e457fb41169dd110c1b96a138394c2d7b (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (39 commits) [SCSI] sd: fix compile failure with CONFIG_BLK_DEV_INTEGRITY=n libiscsi: fix locking in iscsi_eh_device_reset libiscsi: check reason why we are stopping iscsi session to determine error value [SCSI] iscsi_tcp: return a descriptive error value during connection errors [SCSI] libiscsi: rename host reset to target reset [SCSI] iscsi class: fix endpoint id handling [SCSI] libiscsi: Support drivers initiating session removal [SCSI] libiscsi: fix data corruption when target has to resend data-in packets [SCSI] sd: Switch kernel printing level for DIF messages [SCSI] sd: Correctly handle all combinations of DIF and DIX [SCSI] sd: Always print actual protection_type [SCSI] sd: Issue correct protection operation [SCSI] scsi_error: fix target reset handling [SCSI] lpfc 8.2.8 v2 : Add statistical reporting control and additional fc vendor events [SCSI] lpfc 8.2.8 v2 : Add sysfs control of target queue depth handling [SCSI] lpfc 8.2.8 v2 : Revert target busy in favor of transport disrupted [SCSI] scsi_dh_alua: remove REQ_NOMERGE [SCSI] lpfc 8.2.8 : update driver version to 8.2.8 [SCSI] lpfc 8.2.8 : Add MSI-X support [SCSI] lpfc 8.2.8 : Update driver to use new Host byte error code DID_TRANSPORT_DISRUPTED ...
Diffstat (limited to 'drivers')
-rw-r--r--drivers/infiniband/ulp/iser/iscsi_iser.c3
-rw-r--r--drivers/md/dm-mpath.c2
-rw-r--r--drivers/md/multipath.c4
-rw-r--r--drivers/s390/block/dasd_diag.c2
-rw-r--r--drivers/s390/block/dasd_eckd.c2
-rw-r--r--drivers/s390/block/dasd_fba.c2
-rw-r--r--drivers/scsi/constants.c3
-rw-r--r--drivers/scsi/device_handler/scsi_dh_alua.c3
-rw-r--r--drivers/scsi/device_handler/scsi_dh_emc.c3
-rw-r--r--drivers/scsi/device_handler/scsi_dh_hp_sw.c6
-rw-r--r--drivers/scsi/device_handler/scsi_dh_rdac.c3
-rw-r--r--drivers/scsi/ibmvscsi/ibmvfc.c2
-rw-r--r--drivers/scsi/iscsi_tcp.c44
-rw-r--r--drivers/scsi/libiscsi.c183
-rw-r--r--drivers/scsi/lpfc/lpfc.h96
-rw-r--r--drivers/scsi/lpfc/lpfc_attr.c1375
-rw-r--r--drivers/scsi/lpfc/lpfc_crtn.h51
-rw-r--r--drivers/scsi/lpfc/lpfc_ct.c20
-rw-r--r--drivers/scsi/lpfc/lpfc_debugfs.c400
-rw-r--r--drivers/scsi/lpfc/lpfc_disc.h23
-rw-r--r--drivers/scsi/lpfc/lpfc_els.c1712
-rw-r--r--drivers/scsi/lpfc/lpfc_hbadisc.c241
-rw-r--r--drivers/scsi/lpfc/lpfc_hw.h183
-rw-r--r--drivers/scsi/lpfc/lpfc_init.c924
-rw-r--r--drivers/scsi/lpfc/lpfc_mbox.c624
-rw-r--r--drivers/scsi/lpfc/lpfc_mem.c116
-rw-r--r--drivers/scsi/lpfc/lpfc_nl.h163
-rw-r--r--drivers/scsi/lpfc/lpfc_nportdisc.c24
-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.c514
-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.h5
-rw-r--r--drivers/scsi/lpfc/lpfc_sli.c1715
-rw-r--r--drivers/scsi/lpfc/lpfc_sli.h1
-rw-r--r--drivers/scsi/lpfc/lpfc_version.h6
-rw-r--r--drivers/scsi/lpfc/lpfc_vport.c168
-rw-r--r--drivers/scsi/lpfc/lpfc_vport.h4
-rw-r--r--drivers/scsi/qla2xxx/qla_attr.c1
-rw-r--r--drivers/scsi/qla2xxx/qla_isr.c14
-rw-r--r--drivers/scsi/qla2xxx/qla_os.c26
-rw-r--r--drivers/scsi/qla4xxx/ql4_isr.c4
-rw-r--r--drivers/scsi/qla4xxx/ql4_os.c4
-rw-r--r--drivers/scsi/scsi.c10
-rw-r--r--drivers/scsi/scsi_error.c72
-rw-r--r--drivers/scsi/scsi_lib.c106
-rw-r--r--drivers/scsi/scsi_priv.h1
-rw-r--r--drivers/scsi/scsi_scan.c1
-rw-r--r--drivers/scsi/scsi_transport_fc.c47
-rw-r--r--drivers/scsi/scsi_transport_iscsi.c19
-rw-r--r--drivers/scsi/scsi_transport_spi.c4
-rw-r--r--drivers/scsi/sd.c17
-rw-r--r--drivers/scsi/sd.h21
-rw-r--r--drivers/scsi/sd_dif.c42
51 files changed, 7924 insertions, 1092 deletions
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 5a1cf2580e16..1e5b6446231d 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -378,6 +378,7 @@ static void iscsi_iser_session_destroy(struct iscsi_cls_session *cls_session)
378{ 378{
379 struct Scsi_Host *shost = iscsi_session_to_shost(cls_session); 379 struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
380 380
381 iscsi_session_teardown(cls_session);
381 iscsi_host_remove(shost); 382 iscsi_host_remove(shost);
382 iscsi_host_free(shost); 383 iscsi_host_free(shost);
383} 384}
@@ -597,7 +598,7 @@ static struct scsi_host_template iscsi_iser_sht = {
597 .cmd_per_lun = ISCSI_MAX_CMD_PER_LUN, 598 .cmd_per_lun = ISCSI_MAX_CMD_PER_LUN,
598 .eh_abort_handler = iscsi_eh_abort, 599 .eh_abort_handler = iscsi_eh_abort,
599 .eh_device_reset_handler= iscsi_eh_device_reset, 600 .eh_device_reset_handler= iscsi_eh_device_reset,
600 .eh_host_reset_handler = iscsi_eh_host_reset, 601 .eh_target_reset_handler= iscsi_eh_target_reset,
601 .use_clustering = DISABLE_CLUSTERING, 602 .use_clustering = DISABLE_CLUSTERING,
602 .proc_name = "iscsi_iser", 603 .proc_name = "iscsi_iser",
603 .this_id = -1, 604 .this_id = -1,
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 103304c1e3b0..9bf3460c5540 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -849,7 +849,7 @@ static int multipath_map(struct dm_target *ti, struct bio *bio,
849 dm_bio_record(&mpio->details, bio); 849 dm_bio_record(&mpio->details, bio);
850 850
851 map_context->ptr = mpio; 851 map_context->ptr = mpio;
852 bio->bi_rw |= (1 << BIO_RW_FAILFAST); 852 bio->bi_rw |= (1 << BIO_RW_FAILFAST_TRANSPORT);
853 r = map_io(m, bio, mpio, 0); 853 r = map_io(m, bio, mpio, 0);
854 if (r < 0 || r == DM_MAPIO_REQUEUE) 854 if (r < 0 || r == DM_MAPIO_REQUEUE)
855 mempool_free(mpio, m->mpio_pool); 855 mempool_free(mpio, m->mpio_pool);
diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c
index 8744014b9d80..d4ac47d11279 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/multipath.c
@@ -167,7 +167,7 @@ static int multipath_make_request (struct request_queue *q, struct bio * bio)
167 mp_bh->bio = *bio; 167 mp_bh->bio = *bio;
168 mp_bh->bio.bi_sector += multipath->rdev->data_offset; 168 mp_bh->bio.bi_sector += multipath->rdev->data_offset;
169 mp_bh->bio.bi_bdev = multipath->rdev->bdev; 169 mp_bh->bio.bi_bdev = multipath->rdev->bdev;
170 mp_bh->bio.bi_rw |= (1 << BIO_RW_FAILFAST); 170 mp_bh->bio.bi_rw |= (1 << BIO_RW_FAILFAST_TRANSPORT);
171 mp_bh->bio.bi_end_io = multipath_end_request; 171 mp_bh->bio.bi_end_io = multipath_end_request;
172 mp_bh->bio.bi_private = mp_bh; 172 mp_bh->bio.bi_private = mp_bh;
173 generic_make_request(&mp_bh->bio); 173 generic_make_request(&mp_bh->bio);
@@ -393,7 +393,7 @@ static void multipathd (mddev_t *mddev)
393 *bio = *(mp_bh->master_bio); 393 *bio = *(mp_bh->master_bio);
394 bio->bi_sector += conf->multipaths[mp_bh->path].rdev->data_offset; 394 bio->bi_sector += conf->multipaths[mp_bh->path].rdev->data_offset;
395 bio->bi_bdev = conf->multipaths[mp_bh->path].rdev->bdev; 395 bio->bi_bdev = conf->multipaths[mp_bh->path].rdev->bdev;
396 bio->bi_rw |= (1 << BIO_RW_FAILFAST); 396 bio->bi_rw |= (1 << BIO_RW_FAILFAST_TRANSPORT);
397 bio->bi_end_io = multipath_end_request; 397 bio->bi_end_io = multipath_end_request;
398 bio->bi_private = mp_bh; 398 bio->bi_private = mp_bh;
399 generic_make_request(bio); 399 generic_make_request(bio);
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index 85fcb4371054..7844461a995b 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -544,7 +544,7 @@ static struct dasd_ccw_req *dasd_diag_build_cp(struct dasd_device *memdev,
544 } 544 }
545 cqr->retries = DIAG_MAX_RETRIES; 545 cqr->retries = DIAG_MAX_RETRIES;
546 cqr->buildclk = get_clock(); 546 cqr->buildclk = get_clock();
547 if (req->cmd_flags & REQ_FAILFAST) 547 if (blk_noretry_request(req))
548 set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); 548 set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
549 cqr->startdev = memdev; 549 cqr->startdev = memdev;
550 cqr->memdev = memdev; 550 cqr->memdev = memdev;
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 49f9d221e23d..2e60d5f968c8 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -1700,7 +1700,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev,
1700 recid++; 1700 recid++;
1701 } 1701 }
1702 } 1702 }
1703 if (req->cmd_flags & REQ_FAILFAST) 1703 if (blk_noretry_request(req))
1704 set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); 1704 set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
1705 cqr->startdev = startdev; 1705 cqr->startdev = startdev;
1706 cqr->memdev = startdev; 1706 cqr->memdev = startdev;
diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c
index 93d9b6452a94..7d442aeff3d1 100644
--- a/drivers/s390/block/dasd_fba.c
+++ b/drivers/s390/block/dasd_fba.c
@@ -355,7 +355,7 @@ static struct dasd_ccw_req *dasd_fba_build_cp(struct dasd_device * memdev,
355 recid++; 355 recid++;
356 } 356 }
357 } 357 }
358 if (req->cmd_flags & REQ_FAILFAST) 358 if (blk_noretry_request(req))
359 set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags); 359 set_bit(DASD_CQR_FLAGS_FAILFAST, &cqr->flags);
360 cqr->startdev = memdev; 360 cqr->startdev = memdev;
361 cqr->memdev = memdev; 361 cqr->memdev = memdev;
diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c
index 9785d7384199..4003deefb7d8 100644
--- a/drivers/scsi/constants.c
+++ b/drivers/scsi/constants.c
@@ -1364,7 +1364,8 @@ EXPORT_SYMBOL(scsi_print_sense);
1364static const char * const hostbyte_table[]={ 1364static const char * const hostbyte_table[]={
1365"DID_OK", "DID_NO_CONNECT", "DID_BUS_BUSY", "DID_TIME_OUT", "DID_BAD_TARGET", 1365"DID_OK", "DID_NO_CONNECT", "DID_BUS_BUSY", "DID_TIME_OUT", "DID_BAD_TARGET",
1366"DID_ABORT", "DID_PARITY", "DID_ERROR", "DID_RESET", "DID_BAD_INTR", 1366"DID_ABORT", "DID_PARITY", "DID_ERROR", "DID_RESET", "DID_BAD_INTR",
1367"DID_PASSTHROUGH", "DID_SOFT_ERROR", "DID_IMM_RETRY", "DID_REQUEUE"}; 1367"DID_PASSTHROUGH", "DID_SOFT_ERROR", "DID_IMM_RETRY", "DID_REQUEUE",
1368"DID_TRANSPORT_DISRUPTED", "DID_TRANSPORT_FAILFAST" };
1368#define NUM_HOSTBYTE_STRS ARRAY_SIZE(hostbyte_table) 1369#define NUM_HOSTBYTE_STRS ARRAY_SIZE(hostbyte_table)
1369 1370
1370static const char * const driverbyte_table[]={ 1371static const char * const driverbyte_table[]={
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 708e475896b9..e356b43753ff 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -109,7 +109,8 @@ static struct request *get_alua_req(struct scsi_device *sdev,
109 } 109 }
110 110
111 rq->cmd_type = REQ_TYPE_BLOCK_PC; 111 rq->cmd_type = REQ_TYPE_BLOCK_PC;
112 rq->cmd_flags |= REQ_FAILFAST | REQ_NOMERGE; 112 rq->cmd_flags |= REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT |
113 REQ_FAILFAST_DRIVER;
113 rq->retries = ALUA_FAILOVER_RETRIES; 114 rq->retries = ALUA_FAILOVER_RETRIES;
114 rq->timeout = ALUA_FAILOVER_TIMEOUT; 115 rq->timeout = ALUA_FAILOVER_TIMEOUT;
115 116
diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c
index 8f45570a8a01..0e572d2c5b0a 100644
--- a/drivers/scsi/device_handler/scsi_dh_emc.c
+++ b/drivers/scsi/device_handler/scsi_dh_emc.c
@@ -303,7 +303,8 @@ static struct request *get_req(struct scsi_device *sdev, int cmd,
303 303
304 rq->cmd[4] = len; 304 rq->cmd[4] = len;
305 rq->cmd_type = REQ_TYPE_BLOCK_PC; 305 rq->cmd_type = REQ_TYPE_BLOCK_PC;
306 rq->cmd_flags |= REQ_FAILFAST; 306 rq->cmd_flags |= REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT |
307 REQ_FAILFAST_DRIVER;
307 rq->timeout = CLARIION_TIMEOUT; 308 rq->timeout = CLARIION_TIMEOUT;
308 rq->retries = CLARIION_RETRIES; 309 rq->retries = CLARIION_RETRIES;
309 310
diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c
index 5e93c88ad66b..9aec4ca64e56 100644
--- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c
+++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c
@@ -112,7 +112,8 @@ static int hp_sw_tur(struct scsi_device *sdev, struct hp_sw_dh_data *h)
112 return SCSI_DH_RES_TEMP_UNAVAIL; 112 return SCSI_DH_RES_TEMP_UNAVAIL;
113 113
114 req->cmd_type = REQ_TYPE_BLOCK_PC; 114 req->cmd_type = REQ_TYPE_BLOCK_PC;
115 req->cmd_flags |= REQ_FAILFAST; 115 req->cmd_flags |= REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT |
116 REQ_FAILFAST_DRIVER;
116 req->cmd_len = COMMAND_SIZE(TEST_UNIT_READY); 117 req->cmd_len = COMMAND_SIZE(TEST_UNIT_READY);
117 req->cmd[0] = TEST_UNIT_READY; 118 req->cmd[0] = TEST_UNIT_READY;
118 req->timeout = HP_SW_TIMEOUT; 119 req->timeout = HP_SW_TIMEOUT;
@@ -204,7 +205,8 @@ static int hp_sw_start_stop(struct scsi_device *sdev, struct hp_sw_dh_data *h)
204 return SCSI_DH_RES_TEMP_UNAVAIL; 205 return SCSI_DH_RES_TEMP_UNAVAIL;
205 206
206 req->cmd_type = REQ_TYPE_BLOCK_PC; 207 req->cmd_type = REQ_TYPE_BLOCK_PC;
207 req->cmd_flags |= REQ_FAILFAST; 208 req->cmd_flags |= REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT |
209 REQ_FAILFAST_DRIVER;
208 req->cmd_len = COMMAND_SIZE(START_STOP); 210 req->cmd_len = COMMAND_SIZE(START_STOP);
209 req->cmd[0] = START_STOP; 211 req->cmd[0] = START_STOP;
210 req->cmd[4] = 1; /* Start spin cycle */ 212 req->cmd[4] = 1; /* Start spin cycle */
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
index 50bf95f3b5c4..a43c3ed4df28 100644
--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
+++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
@@ -226,7 +226,8 @@ static struct request *get_rdac_req(struct scsi_device *sdev,
226 } 226 }
227 227
228 rq->cmd_type = REQ_TYPE_BLOCK_PC; 228 rq->cmd_type = REQ_TYPE_BLOCK_PC;
229 rq->cmd_flags |= REQ_FAILFAST | REQ_NOMERGE; 229 rq->cmd_flags |= REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT |
230 REQ_FAILFAST_DRIVER;
230 rq->retries = RDAC_RETRIES; 231 rq->retries = RDAC_RETRIES;
231 rq->timeout = RDAC_TIMEOUT; 232 rq->timeout = RDAC_TIMEOUT;
232 233
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index 4e0b7c8eb32e..7650707a40de 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -2031,8 +2031,6 @@ static void ibmvfc_terminate_rport_io(struct fc_rport *rport)
2031 spin_unlock_irqrestore(shost->host_lock, flags); 2031 spin_unlock_irqrestore(shost->host_lock, flags);
2032 } else 2032 } else
2033 ibmvfc_issue_fc_host_lip(shost); 2033 ibmvfc_issue_fc_host_lip(shost);
2034
2035 scsi_target_unblock(&rport->dev);
2036 LEAVE; 2034 LEAVE;
2037} 2035}
2038 2036
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 2a2f0094570f..ed6c54cae7b1 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -523,22 +523,20 @@ iscsi_tcp_cleanup_task(struct iscsi_conn *conn, struct iscsi_task *task)
523} 523}
524 524
525/** 525/**
526 * iscsi_data_rsp - SCSI Data-In Response processing 526 * iscsi_data_in - SCSI Data-In Response processing
527 * @conn: iscsi connection 527 * @conn: iscsi connection
528 * @task: scsi command task 528 * @task: scsi command task
529 **/ 529 **/
530static int 530static int
531iscsi_data_rsp(struct iscsi_conn *conn, struct iscsi_task *task) 531iscsi_data_in(struct iscsi_conn *conn, struct iscsi_task *task)
532{ 532{
533 struct iscsi_tcp_conn *tcp_conn = conn->dd_data; 533 struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
534 struct iscsi_tcp_task *tcp_task = task->dd_data; 534 struct iscsi_tcp_task *tcp_task = task->dd_data;
535 struct iscsi_data_rsp *rhdr = (struct iscsi_data_rsp *)tcp_conn->in.hdr; 535 struct iscsi_data_rsp *rhdr = (struct iscsi_data_rsp *)tcp_conn->in.hdr;
536 struct iscsi_session *session = conn->session;
537 struct scsi_cmnd *sc = task->sc;
538 int datasn = be32_to_cpu(rhdr->datasn); 536 int datasn = be32_to_cpu(rhdr->datasn);
539 unsigned total_in_length = scsi_in(sc)->length; 537 unsigned total_in_length = scsi_in(task->sc)->length;
540 538
541 iscsi_update_cmdsn(session, (struct iscsi_nopin*)rhdr); 539 iscsi_update_cmdsn(conn->session, (struct iscsi_nopin*)rhdr);
542 if (tcp_conn->in.datalen == 0) 540 if (tcp_conn->in.datalen == 0)
543 return 0; 541 return 0;
544 542
@@ -558,23 +556,6 @@ iscsi_data_rsp(struct iscsi_conn *conn, struct iscsi_task *task)
558 return ISCSI_ERR_DATA_OFFSET; 556 return ISCSI_ERR_DATA_OFFSET;
559 } 557 }
560 558
561 if (rhdr->flags & ISCSI_FLAG_DATA_STATUS) {
562 sc->result = (DID_OK << 16) | rhdr->cmd_status;
563 conn->exp_statsn = be32_to_cpu(rhdr->statsn) + 1;
564 if (rhdr->flags & (ISCSI_FLAG_DATA_UNDERFLOW |
565 ISCSI_FLAG_DATA_OVERFLOW)) {
566 int res_count = be32_to_cpu(rhdr->residual_count);
567
568 if (res_count > 0 &&
569 (rhdr->flags & ISCSI_FLAG_CMD_OVERFLOW ||
570 res_count <= total_in_length))
571 scsi_in(sc)->resid = res_count;
572 else
573 sc->result = (DID_BAD_TARGET << 16) |
574 rhdr->cmd_status;
575 }
576 }
577
578 conn->datain_pdus_cnt++; 559 conn->datain_pdus_cnt++;
579 return 0; 560 return 0;
580} 561}
@@ -774,7 +755,7 @@ iscsi_tcp_hdr_dissect(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
774 if (!task) 755 if (!task)
775 rc = ISCSI_ERR_BAD_ITT; 756 rc = ISCSI_ERR_BAD_ITT;
776 else 757 else
777 rc = iscsi_data_rsp(conn, task); 758 rc = iscsi_data_in(conn, task);
778 if (rc) { 759 if (rc) {
779 spin_unlock(&conn->session->lock); 760 spin_unlock(&conn->session->lock);
780 break; 761 break;
@@ -998,7 +979,7 @@ iscsi_tcp_recv(read_descriptor_t *rd_desc, struct sk_buff *skb,
998 979
999error: 980error:
1000 debug_tcp("Error receiving PDU, errno=%d\n", rc); 981 debug_tcp("Error receiving PDU, errno=%d\n", rc);
1001 iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); 982 iscsi_conn_failure(conn, rc);
1002 return 0; 983 return 0;
1003} 984}
1004 985
@@ -1117,8 +1098,10 @@ iscsi_xmit(struct iscsi_conn *conn)
1117 1098
1118 while (1) { 1099 while (1) {
1119 rc = iscsi_tcp_xmit_segment(tcp_conn, segment); 1100 rc = iscsi_tcp_xmit_segment(tcp_conn, segment);
1120 if (rc < 0) 1101 if (rc < 0) {
1102 rc = ISCSI_ERR_XMIT_FAILED;
1121 goto error; 1103 goto error;
1104 }
1122 if (rc == 0) 1105 if (rc == 0)
1123 break; 1106 break;
1124 1107
@@ -1127,7 +1110,7 @@ iscsi_xmit(struct iscsi_conn *conn)
1127 if (segment->total_copied >= segment->total_size) { 1110 if (segment->total_copied >= segment->total_size) {
1128 if (segment->done != NULL) { 1111 if (segment->done != NULL) {
1129 rc = segment->done(tcp_conn, segment); 1112 rc = segment->done(tcp_conn, segment);
1130 if (rc < 0) 1113 if (rc != 0)
1131 goto error; 1114 goto error;
1132 } 1115 }
1133 } 1116 }
@@ -1142,8 +1125,8 @@ error:
1142 /* Transmit error. We could initiate error recovery 1125 /* Transmit error. We could initiate error recovery
1143 * here. */ 1126 * here. */
1144 debug_tcp("Error sending PDU, errno=%d\n", rc); 1127 debug_tcp("Error sending PDU, errno=%d\n", rc);
1145 iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); 1128 iscsi_conn_failure(conn, rc);
1146 return rc; 1129 return -EIO;
1147} 1130}
1148 1131
1149/** 1132/**
@@ -1904,6 +1887,7 @@ static void iscsi_tcp_session_destroy(struct iscsi_cls_session *cls_session)
1904 struct Scsi_Host *shost = iscsi_session_to_shost(cls_session); 1887 struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
1905 1888
1906 iscsi_r2tpool_free(cls_session->dd_data); 1889 iscsi_r2tpool_free(cls_session->dd_data);
1890 iscsi_session_teardown(cls_session);
1907 1891
1908 iscsi_host_remove(shost); 1892 iscsi_host_remove(shost);
1909 iscsi_host_free(shost); 1893 iscsi_host_free(shost);
@@ -1927,7 +1911,7 @@ static struct scsi_host_template iscsi_sht = {
1927 .cmd_per_lun = ISCSI_DEF_CMD_PER_LUN, 1911 .cmd_per_lun = ISCSI_DEF_CMD_PER_LUN,
1928 .eh_abort_handler = iscsi_eh_abort, 1912 .eh_abort_handler = iscsi_eh_abort,
1929 .eh_device_reset_handler= iscsi_eh_device_reset, 1913 .eh_device_reset_handler= iscsi_eh_device_reset,
1930 .eh_host_reset_handler = iscsi_eh_host_reset, 1914 .eh_target_reset_handler= iscsi_eh_target_reset,
1931 .use_clustering = DISABLE_CLUSTERING, 1915 .use_clustering = DISABLE_CLUSTERING,
1932 .slave_configure = iscsi_tcp_slave_configure, 1916 .slave_configure = iscsi_tcp_slave_configure,
1933 .proc_name = "iscsi_tcp", 1917 .proc_name = "iscsi_tcp",
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index da7b67d30d9a..801c7cf54d2e 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -404,11 +404,6 @@ static void fail_command(struct iscsi_conn *conn, struct iscsi_task *task,
404 conn->session->queued_cmdsn--; 404 conn->session->queued_cmdsn--;
405 else 405 else
406 conn->session->tt->cleanup_task(conn, task); 406 conn->session->tt->cleanup_task(conn, task);
407 /*
408 * Check if cleanup_task dropped the lock and the command completed,
409 */
410 if (!task->sc)
411 return;
412 407
413 sc->result = err; 408 sc->result = err;
414 if (!scsi_bidi_cmnd(sc)) 409 if (!scsi_bidi_cmnd(sc))
@@ -633,6 +628,40 @@ out:
633 __iscsi_put_task(task); 628 __iscsi_put_task(task);
634} 629}
635 630
631/**
632 * iscsi_data_in_rsp - SCSI Data-In Response processing
633 * @conn: iscsi connection
634 * @hdr: iscsi pdu
635 * @task: scsi command task
636 **/
637static void
638iscsi_data_in_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
639 struct iscsi_task *task)
640{
641 struct iscsi_data_rsp *rhdr = (struct iscsi_data_rsp *)hdr;
642 struct scsi_cmnd *sc = task->sc;
643
644 if (!(rhdr->flags & ISCSI_FLAG_DATA_STATUS))
645 return;
646
647 sc->result = (DID_OK << 16) | rhdr->cmd_status;
648 conn->exp_statsn = be32_to_cpu(rhdr->statsn) + 1;
649 if (rhdr->flags & (ISCSI_FLAG_DATA_UNDERFLOW |
650 ISCSI_FLAG_DATA_OVERFLOW)) {
651 int res_count = be32_to_cpu(rhdr->residual_count);
652
653 if (res_count > 0 &&
654 (rhdr->flags & ISCSI_FLAG_CMD_OVERFLOW ||
655 res_count <= scsi_in(sc)->length))
656 scsi_in(sc)->resid = res_count;
657 else
658 sc->result = (DID_BAD_TARGET << 16) | rhdr->cmd_status;
659 }
660
661 conn->scsirsp_pdus_cnt++;
662 __iscsi_put_task(task);
663}
664
636static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr) 665static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
637{ 666{
638 struct iscsi_tm_rsp *tmf = (struct iscsi_tm_rsp *)hdr; 667 struct iscsi_tm_rsp *tmf = (struct iscsi_tm_rsp *)hdr;
@@ -818,12 +847,7 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
818 iscsi_scsi_cmd_rsp(conn, hdr, task, data, datalen); 847 iscsi_scsi_cmd_rsp(conn, hdr, task, data, datalen);
819 break; 848 break;
820 case ISCSI_OP_SCSI_DATA_IN: 849 case ISCSI_OP_SCSI_DATA_IN:
821 if (hdr->flags & ISCSI_FLAG_DATA_STATUS) { 850 iscsi_data_in_rsp(conn, hdr, task);
822 conn->scsirsp_pdus_cnt++;
823 iscsi_update_cmdsn(session,
824 (struct iscsi_nopin*) hdr);
825 __iscsi_put_task(task);
826 }
827 break; 851 break;
828 case ISCSI_OP_LOGOUT_RSP: 852 case ISCSI_OP_LOGOUT_RSP:
829 iscsi_update_cmdsn(session, (struct iscsi_nopin*)hdr); 853 iscsi_update_cmdsn(session, (struct iscsi_nopin*)hdr);
@@ -954,6 +978,38 @@ struct iscsi_task *iscsi_itt_to_ctask(struct iscsi_conn *conn, itt_t itt)
954} 978}
955EXPORT_SYMBOL_GPL(iscsi_itt_to_ctask); 979EXPORT_SYMBOL_GPL(iscsi_itt_to_ctask);
956 980
981void iscsi_session_failure(struct iscsi_cls_session *cls_session,
982 enum iscsi_err err)
983{
984 struct iscsi_session *session = cls_session->dd_data;
985 struct iscsi_conn *conn;
986 struct device *dev;
987 unsigned long flags;
988
989 spin_lock_irqsave(&session->lock, flags);
990 conn = session->leadconn;
991 if (session->state == ISCSI_STATE_TERMINATE || !conn) {
992 spin_unlock_irqrestore(&session->lock, flags);
993 return;
994 }
995
996 dev = get_device(&conn->cls_conn->dev);
997 spin_unlock_irqrestore(&session->lock, flags);
998 if (!dev)
999 return;
1000 /*
1001 * if the host is being removed bypass the connection
1002 * recovery initialization because we are going to kill
1003 * the session.
1004 */
1005 if (err == ISCSI_ERR_INVALID_HOST)
1006 iscsi_conn_error_event(conn->cls_conn, err);
1007 else
1008 iscsi_conn_failure(conn, err);
1009 put_device(dev);
1010}
1011EXPORT_SYMBOL_GPL(iscsi_session_failure);
1012
957void iscsi_conn_failure(struct iscsi_conn *conn, enum iscsi_err err) 1013void iscsi_conn_failure(struct iscsi_conn *conn, enum iscsi_err err)
958{ 1014{
959 struct iscsi_session *session = conn->session; 1015 struct iscsi_session *session = conn->session;
@@ -968,9 +1024,10 @@ void iscsi_conn_failure(struct iscsi_conn *conn, enum iscsi_err err)
968 if (conn->stop_stage == 0) 1024 if (conn->stop_stage == 0)
969 session->state = ISCSI_STATE_FAILED; 1025 session->state = ISCSI_STATE_FAILED;
970 spin_unlock_irqrestore(&session->lock, flags); 1026 spin_unlock_irqrestore(&session->lock, flags);
1027
971 set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx); 1028 set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
972 set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx); 1029 set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_rx);
973 iscsi_conn_error(conn->cls_conn, err); 1030 iscsi_conn_error_event(conn->cls_conn, err);
974} 1031}
975EXPORT_SYMBOL_GPL(iscsi_conn_failure); 1032EXPORT_SYMBOL_GPL(iscsi_conn_failure);
976 1033
@@ -1194,15 +1251,13 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
1194 switch (session->state) { 1251 switch (session->state) {
1195 case ISCSI_STATE_IN_RECOVERY: 1252 case ISCSI_STATE_IN_RECOVERY:
1196 reason = FAILURE_SESSION_IN_RECOVERY; 1253 reason = FAILURE_SESSION_IN_RECOVERY;
1197 sc->result = DID_IMM_RETRY << 16; 1254 goto reject;
1198 break;
1199 case ISCSI_STATE_LOGGING_OUT: 1255 case ISCSI_STATE_LOGGING_OUT:
1200 reason = FAILURE_SESSION_LOGGING_OUT; 1256 reason = FAILURE_SESSION_LOGGING_OUT;
1201 sc->result = DID_IMM_RETRY << 16; 1257 goto reject;
1202 break;
1203 case ISCSI_STATE_RECOVERY_FAILED: 1258 case ISCSI_STATE_RECOVERY_FAILED:
1204 reason = FAILURE_SESSION_RECOVERY_TIMEOUT; 1259 reason = FAILURE_SESSION_RECOVERY_TIMEOUT;
1205 sc->result = DID_NO_CONNECT << 16; 1260 sc->result = DID_TRANSPORT_FAILFAST << 16;
1206 break; 1261 break;
1207 case ISCSI_STATE_TERMINATE: 1262 case ISCSI_STATE_TERMINATE:
1208 reason = FAILURE_SESSION_TERMINATE; 1263 reason = FAILURE_SESSION_TERMINATE;
@@ -1267,7 +1322,7 @@ reject:
1267 spin_unlock(&session->lock); 1322 spin_unlock(&session->lock);
1268 debug_scsi("cmd 0x%x rejected (%d)\n", sc->cmnd[0], reason); 1323 debug_scsi("cmd 0x%x rejected (%d)\n", sc->cmnd[0], reason);
1269 spin_lock(host->host_lock); 1324 spin_lock(host->host_lock);
1270 return SCSI_MLQUEUE_HOST_BUSY; 1325 return SCSI_MLQUEUE_TARGET_BUSY;
1271 1326
1272fault: 1327fault:
1273 spin_unlock(&session->lock); 1328 spin_unlock(&session->lock);
@@ -1307,7 +1362,7 @@ void iscsi_session_recovery_timedout(struct iscsi_cls_session *cls_session)
1307} 1362}
1308EXPORT_SYMBOL_GPL(iscsi_session_recovery_timedout); 1363EXPORT_SYMBOL_GPL(iscsi_session_recovery_timedout);
1309 1364
1310int iscsi_eh_host_reset(struct scsi_cmnd *sc) 1365int iscsi_eh_target_reset(struct scsi_cmnd *sc)
1311{ 1366{
1312 struct iscsi_cls_session *cls_session; 1367 struct iscsi_cls_session *cls_session;
1313 struct iscsi_session *session; 1368 struct iscsi_session *session;
@@ -1321,7 +1376,7 @@ int iscsi_eh_host_reset(struct scsi_cmnd *sc)
1321 spin_lock_bh(&session->lock); 1376 spin_lock_bh(&session->lock);
1322 if (session->state == ISCSI_STATE_TERMINATE) { 1377 if (session->state == ISCSI_STATE_TERMINATE) {
1323failed: 1378failed:
1324 debug_scsi("failing host reset: session terminated " 1379 debug_scsi("failing target reset: session terminated "
1325 "[CID %d age %d]\n", conn->id, session->age); 1380 "[CID %d age %d]\n", conn->id, session->age);
1326 spin_unlock_bh(&session->lock); 1381 spin_unlock_bh(&session->lock);
1327 mutex_unlock(&session->eh_mutex); 1382 mutex_unlock(&session->eh_mutex);
@@ -1336,7 +1391,7 @@ failed:
1336 */ 1391 */
1337 iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED); 1392 iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
1338 1393
1339 debug_scsi("iscsi_eh_host_reset wait for relogin\n"); 1394 debug_scsi("iscsi_eh_target_reset wait for relogin\n");
1340 wait_event_interruptible(conn->ehwait, 1395 wait_event_interruptible(conn->ehwait,
1341 session->state == ISCSI_STATE_TERMINATE || 1396 session->state == ISCSI_STATE_TERMINATE ||
1342 session->state == ISCSI_STATE_LOGGED_IN || 1397 session->state == ISCSI_STATE_LOGGED_IN ||
@@ -1348,14 +1403,14 @@ failed:
1348 spin_lock_bh(&session->lock); 1403 spin_lock_bh(&session->lock);
1349 if (session->state == ISCSI_STATE_LOGGED_IN) 1404 if (session->state == ISCSI_STATE_LOGGED_IN)
1350 iscsi_session_printk(KERN_INFO, session, 1405 iscsi_session_printk(KERN_INFO, session,
1351 "host reset succeeded\n"); 1406 "target reset succeeded\n");
1352 else 1407 else
1353 goto failed; 1408 goto failed;
1354 spin_unlock_bh(&session->lock); 1409 spin_unlock_bh(&session->lock);
1355 mutex_unlock(&session->eh_mutex); 1410 mutex_unlock(&session->eh_mutex);
1356 return SUCCESS; 1411 return SUCCESS;
1357} 1412}
1358EXPORT_SYMBOL_GPL(iscsi_eh_host_reset); 1413EXPORT_SYMBOL_GPL(iscsi_eh_target_reset);
1359 1414
1360static void iscsi_tmf_timedout(unsigned long data) 1415static void iscsi_tmf_timedout(unsigned long data)
1361{ 1416{
@@ -1769,10 +1824,10 @@ int iscsi_eh_device_reset(struct scsi_cmnd *sc)
1769 1824
1770 iscsi_suspend_tx(conn); 1825 iscsi_suspend_tx(conn);
1771 1826
1772 spin_lock(&session->lock); 1827 spin_lock_bh(&session->lock);
1773 fail_all_commands(conn, sc->device->lun, DID_ERROR); 1828 fail_all_commands(conn, sc->device->lun, DID_ERROR);
1774 conn->tmf_state = TMF_INITIAL; 1829 conn->tmf_state = TMF_INITIAL;
1775 spin_unlock(&session->lock); 1830 spin_unlock_bh(&session->lock);
1776 1831
1777 iscsi_start_tx(conn); 1832 iscsi_start_tx(conn);
1778 goto done; 1833 goto done;
@@ -1878,6 +1933,7 @@ struct Scsi_Host *iscsi_host_alloc(struct scsi_host_template *sht,
1878 int dd_data_size, uint16_t qdepth) 1933 int dd_data_size, uint16_t qdepth)
1879{ 1934{
1880 struct Scsi_Host *shost; 1935 struct Scsi_Host *shost;
1936 struct iscsi_host *ihost;
1881 1937
1882 shost = scsi_host_alloc(sht, sizeof(struct iscsi_host) + dd_data_size); 1938 shost = scsi_host_alloc(sht, sizeof(struct iscsi_host) + dd_data_size);
1883 if (!shost) 1939 if (!shost)
@@ -1892,22 +1948,43 @@ struct Scsi_Host *iscsi_host_alloc(struct scsi_host_template *sht,
1892 qdepth = ISCSI_DEF_CMD_PER_LUN; 1948 qdepth = ISCSI_DEF_CMD_PER_LUN;
1893 } 1949 }
1894 shost->cmd_per_lun = qdepth; 1950 shost->cmd_per_lun = qdepth;
1951
1952 ihost = shost_priv(shost);
1953 spin_lock_init(&ihost->lock);
1954 ihost->state = ISCSI_HOST_SETUP;
1955 ihost->num_sessions = 0;
1956 init_waitqueue_head(&ihost->session_removal_wq);
1895 return shost; 1957 return shost;
1896} 1958}
1897EXPORT_SYMBOL_GPL(iscsi_host_alloc); 1959EXPORT_SYMBOL_GPL(iscsi_host_alloc);
1898 1960
1961static void iscsi_notify_host_removed(struct iscsi_cls_session *cls_session)
1962{
1963 iscsi_session_failure(cls_session, ISCSI_ERR_INVALID_HOST);
1964}
1965
1899/** 1966/**
1900 * iscsi_host_remove - remove host and sessions 1967 * iscsi_host_remove - remove host and sessions
1901 * @shost: scsi host 1968 * @shost: scsi host
1902 * 1969 *
1903 * This will also remove any sessions attached to the host, but if userspace 1970 * If there are any sessions left, this will initiate the removal and wait
1904 * is managing the session at the same time this will break. TODO: add 1971 * for the completion.
1905 * refcounting to the netlink iscsi interface so a rmmod or host hot unplug
1906 * does not remove the memory from under us.
1907 */ 1972 */
1908void iscsi_host_remove(struct Scsi_Host *shost) 1973void iscsi_host_remove(struct Scsi_Host *shost)
1909{ 1974{
1910 iscsi_host_for_each_session(shost, iscsi_session_teardown); 1975 struct iscsi_host *ihost = shost_priv(shost);
1976 unsigned long flags;
1977
1978 spin_lock_irqsave(&ihost->lock, flags);
1979 ihost->state = ISCSI_HOST_REMOVED;
1980 spin_unlock_irqrestore(&ihost->lock, flags);
1981
1982 iscsi_host_for_each_session(shost, iscsi_notify_host_removed);
1983 wait_event_interruptible(ihost->session_removal_wq,
1984 ihost->num_sessions == 0);
1985 if (signal_pending(current))
1986 flush_signals(current);
1987
1911 scsi_remove_host(shost); 1988 scsi_remove_host(shost);
1912} 1989}
1913EXPORT_SYMBOL_GPL(iscsi_host_remove); 1990EXPORT_SYMBOL_GPL(iscsi_host_remove);
@@ -1923,6 +2000,27 @@ void iscsi_host_free(struct Scsi_Host *shost)
1923} 2000}
1924EXPORT_SYMBOL_GPL(iscsi_host_free); 2001EXPORT_SYMBOL_GPL(iscsi_host_free);
1925 2002
2003static void iscsi_host_dec_session_cnt(struct Scsi_Host *shost)
2004{
2005 struct iscsi_host *ihost = shost_priv(shost);
2006 unsigned long flags;
2007
2008 shost = scsi_host_get(shost);
2009 if (!shost) {
2010 printk(KERN_ERR "Invalid state. Cannot notify host removal "
2011 "of session teardown event because host already "
2012 "removed.\n");
2013 return;
2014 }
2015
2016 spin_lock_irqsave(&ihost->lock, flags);
2017 ihost->num_sessions--;
2018 if (ihost->num_sessions == 0)
2019 wake_up(&ihost->session_removal_wq);
2020 spin_unlock_irqrestore(&ihost->lock, flags);
2021 scsi_host_put(shost);
2022}
2023
1926/** 2024/**
1927 * iscsi_session_setup - create iscsi cls session and host and session 2025 * iscsi_session_setup - create iscsi cls session and host and session
1928 * @iscsit: iscsi transport template 2026 * @iscsit: iscsi transport template
@@ -1943,9 +2041,19 @@ iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost,
1943 uint16_t cmds_max, int cmd_task_size, 2041 uint16_t cmds_max, int cmd_task_size,
1944 uint32_t initial_cmdsn, unsigned int id) 2042 uint32_t initial_cmdsn, unsigned int id)
1945{ 2043{
2044 struct iscsi_host *ihost = shost_priv(shost);
1946 struct iscsi_session *session; 2045 struct iscsi_session *session;
1947 struct iscsi_cls_session *cls_session; 2046 struct iscsi_cls_session *cls_session;
1948 int cmd_i, scsi_cmds, total_cmds = cmds_max; 2047 int cmd_i, scsi_cmds, total_cmds = cmds_max;
2048 unsigned long flags;
2049
2050 spin_lock_irqsave(&ihost->lock, flags);
2051 if (ihost->state == ISCSI_HOST_REMOVED) {
2052 spin_unlock_irqrestore(&ihost->lock, flags);
2053 return NULL;
2054 }
2055 ihost->num_sessions++;
2056 spin_unlock_irqrestore(&ihost->lock, flags);
1949 2057
1950 if (!total_cmds) 2058 if (!total_cmds)
1951 total_cmds = ISCSI_DEF_XMIT_CMDS_MAX; 2059 total_cmds = ISCSI_DEF_XMIT_CMDS_MAX;
@@ -1958,7 +2066,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost,
1958 printk(KERN_ERR "iscsi: invalid can_queue of %d. can_queue " 2066 printk(KERN_ERR "iscsi: invalid can_queue of %d. can_queue "
1959 "must be a power of two that is at least %d.\n", 2067 "must be a power of two that is at least %d.\n",
1960 total_cmds, ISCSI_TOTAL_CMDS_MIN); 2068 total_cmds, ISCSI_TOTAL_CMDS_MIN);
1961 return NULL; 2069 goto dec_session_count;
1962 } 2070 }
1963 2071
1964 if (total_cmds > ISCSI_TOTAL_CMDS_MAX) { 2072 if (total_cmds > ISCSI_TOTAL_CMDS_MAX) {
@@ -1982,7 +2090,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost,
1982 cls_session = iscsi_alloc_session(shost, iscsit, 2090 cls_session = iscsi_alloc_session(shost, iscsit,
1983 sizeof(struct iscsi_session)); 2091 sizeof(struct iscsi_session));
1984 if (!cls_session) 2092 if (!cls_session)
1985 return NULL; 2093 goto dec_session_count;
1986 session = cls_session->dd_data; 2094 session = cls_session->dd_data;
1987 session->cls_session = cls_session; 2095 session->cls_session = cls_session;
1988 session->host = shost; 2096 session->host = shost;
@@ -2021,6 +2129,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit, struct Scsi_Host *shost,
2021 2129
2022 if (iscsi_add_session(cls_session, id)) 2130 if (iscsi_add_session(cls_session, id))
2023 goto cls_session_fail; 2131 goto cls_session_fail;
2132
2024 return cls_session; 2133 return cls_session;
2025 2134
2026cls_session_fail: 2135cls_session_fail:
@@ -2029,6 +2138,8 @@ module_get_fail:
2029 iscsi_pool_free(&session->cmdpool); 2138 iscsi_pool_free(&session->cmdpool);
2030cmdpool_alloc_fail: 2139cmdpool_alloc_fail:
2031 iscsi_free_session(cls_session); 2140 iscsi_free_session(cls_session);
2141dec_session_count:
2142 iscsi_host_dec_session_cnt(shost);
2032 return NULL; 2143 return NULL;
2033} 2144}
2034EXPORT_SYMBOL_GPL(iscsi_session_setup); 2145EXPORT_SYMBOL_GPL(iscsi_session_setup);
@@ -2044,6 +2155,7 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session)
2044{ 2155{
2045 struct iscsi_session *session = cls_session->dd_data; 2156 struct iscsi_session *session = cls_session->dd_data;
2046 struct module *owner = cls_session->transport->owner; 2157 struct module *owner = cls_session->transport->owner;
2158 struct Scsi_Host *shost = session->host;
2047 2159
2048 iscsi_pool_free(&session->cmdpool); 2160 iscsi_pool_free(&session->cmdpool);
2049 2161
@@ -2056,6 +2168,7 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session)
2056 kfree(session->ifacename); 2168 kfree(session->ifacename);
2057 2169
2058 iscsi_destroy_session(cls_session); 2170 iscsi_destroy_session(cls_session);
2171 iscsi_host_dec_session_cnt(shost);
2059 module_put(owner); 2172 module_put(owner);
2060} 2173}
2061EXPORT_SYMBOL_GPL(iscsi_session_teardown); 2174EXPORT_SYMBOL_GPL(iscsi_session_teardown);
@@ -2335,8 +2448,10 @@ static void iscsi_start_session_recovery(struct iscsi_session *session,
2335 * flush queues. 2448 * flush queues.
2336 */ 2449 */
2337 spin_lock_bh(&session->lock); 2450 spin_lock_bh(&session->lock);
2338 fail_all_commands(conn, -1, 2451 if (flag == STOP_CONN_RECOVER)
2339 STOP_CONN_RECOVER ? DID_BUS_BUSY : DID_ERROR); 2452 fail_all_commands(conn, -1, DID_TRANSPORT_DISRUPTED);
2453 else
2454 fail_all_commands(conn, -1, DID_ERROR);
2340 flush_control_queues(session, conn); 2455 flush_control_queues(session, conn);
2341 spin_unlock_bh(&session->lock); 2456 spin_unlock_bh(&session->lock);
2342 mutex_unlock(&session->eh_mutex); 2457 mutex_unlock(&session->eh_mutex);
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index e0e018d12653..60a9e6e9384b 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -34,7 +34,14 @@ struct lpfc_sli2_slim;
34#define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */ 34#define LPFC_IOCB_LIST_CNT 2250 /* list of IOCBs for fast-path usage. */
35#define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */ 35#define LPFC_Q_RAMP_UP_INTERVAL 120 /* lun q_depth ramp up interval */
36#define LPFC_VNAME_LEN 100 /* vport symbolic name length */ 36#define LPFC_VNAME_LEN 100 /* vport symbolic name length */
37 37#define LPFC_TGTQ_INTERVAL 40000 /* Min amount of time between tgt
38 queue depth change in millisecs */
39#define LPFC_TGTQ_RAMPUP_PCENT 5 /* Target queue rampup in percentage */
40#define LPFC_MIN_TGT_QDEPTH 100
41#define LPFC_MAX_TGT_QDEPTH 0xFFFF
42
43#define LPFC_MAX_BUCKET_COUNT 20 /* Maximum no. of buckets for stat data
44 collection. */
38/* 45/*
39 * Following time intervals are used of adjusting SCSI device 46 * Following time intervals are used of adjusting SCSI device
40 * queue depths when there are driver resource error or Firmware 47 * queue depths when there are driver resource error or Firmware
@@ -49,6 +56,9 @@ struct lpfc_sli2_slim;
49#define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */ 56#define LPFC_HB_MBOX_INTERVAL 5 /* Heart beat interval in seconds. */
50#define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */ 57#define LPFC_HB_MBOX_TIMEOUT 30 /* Heart beat timeout in seconds. */
51 58
59/* Error Attention event polling interval */
60#define LPFC_ERATT_POLL_INTERVAL 5 /* EATT poll interval in seconds */
61
52/* Define macros for 64 bit support */ 62/* Define macros for 64 bit support */
53#define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr))) 63#define putPaddrLow(addr) ((uint32_t) (0xffffffff & (u64)(addr)))
54#define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32))) 64#define putPaddrHigh(addr) ((uint32_t) (0xffffffff & (((u64)(addr))>>32)))
@@ -60,6 +70,9 @@ struct lpfc_sli2_slim;
60 70
61#define MAX_HBAEVT 32 71#define MAX_HBAEVT 32
62 72
73/* Number of MSI-X vectors the driver uses */
74#define LPFC_MSIX_VECTORS 2
75
63/* lpfc wait event data ready flag */ 76/* lpfc wait event data ready flag */
64#define LPFC_DATA_READY (1<<0) 77#define LPFC_DATA_READY (1<<0)
65 78
@@ -357,6 +370,7 @@ struct lpfc_vport {
357 uint32_t cfg_log_verbose; 370 uint32_t cfg_log_verbose;
358 uint32_t cfg_max_luns; 371 uint32_t cfg_max_luns;
359 uint32_t cfg_enable_da_id; 372 uint32_t cfg_enable_da_id;
373 uint32_t cfg_max_scsicmpl_time;
360 374
361 uint32_t dev_loss_tmo_changed; 375 uint32_t dev_loss_tmo_changed;
362 376
@@ -369,6 +383,8 @@ struct lpfc_vport {
369 struct lpfc_debugfs_trc *disc_trc; 383 struct lpfc_debugfs_trc *disc_trc;
370 atomic_t disc_trc_cnt; 384 atomic_t disc_trc_cnt;
371#endif 385#endif
386 uint8_t stat_data_enabled;
387 uint8_t stat_data_blocked;
372}; 388};
373 389
374struct hbq_s { 390struct hbq_s {
@@ -407,10 +423,11 @@ struct lpfc_hba {
407 struct lpfc_sli sli; 423 struct lpfc_sli sli;
408 uint32_t sli_rev; /* SLI2 or SLI3 */ 424 uint32_t sli_rev; /* SLI2 or SLI3 */
409 uint32_t sli3_options; /* Mask of enabled SLI3 options */ 425 uint32_t sli3_options; /* Mask of enabled SLI3 options */
410#define LPFC_SLI3_ENABLED 0x01 426#define LPFC_SLI3_HBQ_ENABLED 0x01
411#define LPFC_SLI3_HBQ_ENABLED 0x02 427#define LPFC_SLI3_NPIV_ENABLED 0x02
412#define LPFC_SLI3_NPIV_ENABLED 0x04 428#define LPFC_SLI3_VPORT_TEARDOWN 0x04
413#define LPFC_SLI3_VPORT_TEARDOWN 0x08 429#define LPFC_SLI3_CRP_ENABLED 0x08
430#define LPFC_SLI3_INB_ENABLED 0x10
414 uint32_t iocb_cmd_size; 431 uint32_t iocb_cmd_size;
415 uint32_t iocb_rsp_size; 432 uint32_t iocb_rsp_size;
416 433
@@ -422,10 +439,20 @@ struct lpfc_hba {
422#define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */ 439#define LS_NPIV_FAB_SUPPORTED 0x2 /* Fabric supports NPIV */
423#define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */ 440#define LS_IGNORE_ERATT 0x4 /* intr handler should ignore ERATT */
424 441
425 struct lpfc_sli2_slim *slim2p; 442 uint32_t hba_flag; /* hba generic flags */
426 struct lpfc_dmabuf hbqslimp; 443#define HBA_ERATT_HANDLED 0x1 /* This flag is set when eratt handled */
444
445 struct lpfc_dmabuf slim2p;
427 446
428 dma_addr_t slim2p_mapping; 447 MAILBOX_t *mbox;
448 uint32_t *inb_ha_copy;
449 uint32_t *inb_counter;
450 uint32_t inb_last_counter;
451 uint32_t ha_copy;
452 struct _PCB *pcb;
453 struct _IOCB *IOCBs;
454
455 struct lpfc_dmabuf hbqslimp;
429 456
430 uint16_t pci_cfg_value; 457 uint16_t pci_cfg_value;
431 458
@@ -492,7 +519,7 @@ struct lpfc_hba {
492 519
493 wait_queue_head_t work_waitq; 520 wait_queue_head_t work_waitq;
494 struct task_struct *worker_thread; 521 struct task_struct *worker_thread;
495 long data_flags; 522 unsigned long data_flags;
496 523
497 uint32_t hbq_in_use; /* HBQs in use flag */ 524 uint32_t hbq_in_use; /* HBQs in use flag */
498 struct list_head hbqbuf_in_list; /* in-fly hbq buffer list */ 525 struct list_head hbqbuf_in_list; /* in-fly hbq buffer list */
@@ -514,6 +541,7 @@ struct lpfc_hba {
514 void __iomem *HCregaddr; /* virtual address for host ctl reg */ 541 void __iomem *HCregaddr; /* virtual address for host ctl reg */
515 542
516 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */ 543 struct lpfc_hgp __iomem *host_gp; /* Host side get/put pointers */
544 struct lpfc_pgp *port_gp;
517 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */ 545 uint32_t __iomem *hbq_put; /* Address in SLIM to HBQ put ptrs */
518 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */ 546 uint32_t *hbq_get; /* Host mem address of HBQ get ptrs */
519 547
@@ -536,6 +564,7 @@ struct lpfc_hba {
536 uint8_t soft_wwn_enable; 564 uint8_t soft_wwn_enable;
537 565
538 struct timer_list fcp_poll_timer; 566 struct timer_list fcp_poll_timer;
567 struct timer_list eratt_poll;
539 568
540 /* 569 /*
541 * stat counters 570 * stat counters
@@ -565,7 +594,7 @@ struct lpfc_hba {
565 594
566 struct fc_host_statistics link_stats; 595 struct fc_host_statistics link_stats;
567 enum intr_type_t intr_type; 596 enum intr_type_t intr_type;
568 struct msix_entry msix_entries[1]; 597 struct msix_entry msix_entries[LPFC_MSIX_VECTORS];
569 598
570 struct list_head port_list; 599 struct list_head port_list;
571 struct lpfc_vport *pport; /* physical lpfc_vport pointer */ 600 struct lpfc_vport *pport; /* physical lpfc_vport pointer */
@@ -605,6 +634,7 @@ struct lpfc_hba {
605 unsigned long last_completion_time; 634 unsigned long last_completion_time;
606 struct timer_list hb_tmofunc; 635 struct timer_list hb_tmofunc;
607 uint8_t hb_outstanding; 636 uint8_t hb_outstanding;
637 enum hba_temp_state over_temp_state;
608 /* ndlp reference management */ 638 /* ndlp reference management */
609 spinlock_t ndlp_lock; 639 spinlock_t ndlp_lock;
610 /* 640 /*
@@ -613,7 +643,19 @@ struct lpfc_hba {
613 */ 643 */
614#define QUE_BUFTAG_BIT (1<<31) 644#define QUE_BUFTAG_BIT (1<<31)
615 uint32_t buffer_tag_count; 645 uint32_t buffer_tag_count;
616 enum hba_temp_state over_temp_state; 646 int wait_4_mlo_maint_flg;
647 wait_queue_head_t wait_4_mlo_m_q;
648 /* data structure used for latency data collection */
649#define LPFC_NO_BUCKET 0
650#define LPFC_LINEAR_BUCKET 1
651#define LPFC_POWER2_BUCKET 2
652 uint8_t bucket_type;
653 uint32_t bucket_base;
654 uint32_t bucket_step;
655
656/* Maximum number of events that can be outstanding at any time*/
657#define LPFC_MAX_EVT_COUNT 512
658 atomic_t fast_event_count;
617}; 659};
618 660
619static inline struct Scsi_Host * 661static inline struct Scsi_Host *
@@ -650,15 +692,25 @@ lpfc_worker_wake_up(struct lpfc_hba *phba)
650 return; 692 return;
651} 693}
652 694
653#define FC_REG_DUMP_EVENT 0x10 /* Register for Dump events */ 695static inline void
654#define FC_REG_TEMPERATURE_EVENT 0x20 /* Register for temperature 696lpfc_sli_read_hs(struct lpfc_hba *phba)
655 event */ 697{
698 /*
699 * There was a link/board error. Read the status register to retrieve
700 * the error event and process it.
701 */
702 phba->sli.slistat.err_attn_event++;
703
704 /* Save status info */
705 phba->work_hs = readl(phba->HSregaddr);
706 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
707 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
708
709 /* Clear chip Host Attention error bit */
710 writel(HA_ERATT, phba->HAregaddr);
711 readl(phba->HAregaddr); /* flush */
712 phba->pport->stopped = 1;
713
714 return;
715}
656 716
657struct temp_event {
658 uint32_t event_type;
659 uint32_t event_code;
660 uint32_t data;
661};
662#define LPFC_CRIT_TEMP 0x1
663#define LPFC_THRESHOLD_TEMP 0x2
664#define LPFC_NORMAL_TEMP 0x3
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 37bfa0bd1dae..aa3d6277581d 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -32,6 +32,7 @@
32 32
33#include "lpfc_hw.h" 33#include "lpfc_hw.h"
34#include "lpfc_sli.h" 34#include "lpfc_sli.h"
35#include "lpfc_nl.h"
35#include "lpfc_disc.h" 36#include "lpfc_disc.h"
36#include "lpfc_scsi.h" 37#include "lpfc_scsi.h"
37#include "lpfc.h" 38#include "lpfc.h"
@@ -49,6 +50,21 @@
49#define LPFC_LINK_SPEED_BITMAP 0x00000117 50#define LPFC_LINK_SPEED_BITMAP 0x00000117
50#define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8" 51#define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8"
51 52
53/**
54 * lpfc_jedec_to_ascii: Hex to ascii convertor according to JEDEC rules.
55 * @incr: integer to convert.
56 * @hdw: ascii string holding converted integer plus a string terminator.
57 *
58 * Description:
59 * JEDEC Joint Electron Device Engineering Council.
60 * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii
61 * character string. The string is then terminated with a NULL in byte 9.
62 * Hex 0-9 becomes ascii '0' to '9'.
63 * Hex a-f becomes ascii '=' to 'B' capital B.
64 *
65 * Notes:
66 * Coded for 32 bit integers only.
67 **/
52static void 68static void
53lpfc_jedec_to_ascii(int incr, char hdw[]) 69lpfc_jedec_to_ascii(int incr, char hdw[])
54{ 70{
@@ -65,6 +81,14 @@ lpfc_jedec_to_ascii(int incr, char hdw[])
65 return; 81 return;
66} 82}
67 83
84/**
85 * lpfc_drvr_version_show: Return the Emulex driver string with version number.
86 * @dev: class unused variable.
87 * @attr: device attribute, not used.
88 * @buf: on return contains the module description text.
89 *
90 * Returns: size of formatted string.
91 **/
68static ssize_t 92static ssize_t
69lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, 93lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
70 char *buf) 94 char *buf)
@@ -72,6 +96,14 @@ lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr,
72 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); 96 return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n");
73} 97}
74 98
99/**
100 * lpfc_info_show: Return some pci info about the host in ascii.
101 * @dev: class converted to a Scsi_host structure.
102 * @attr: device attribute, not used.
103 * @buf: on return contains the formatted text from lpfc_info().
104 *
105 * Returns: size of formatted string.
106 **/
75static ssize_t 107static ssize_t
76lpfc_info_show(struct device *dev, struct device_attribute *attr, 108lpfc_info_show(struct device *dev, struct device_attribute *attr,
77 char *buf) 109 char *buf)
@@ -81,6 +113,14 @@ lpfc_info_show(struct device *dev, struct device_attribute *attr,
81 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host)); 113 return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host));
82} 114}
83 115
116/**
117 * lpfc_serialnum_show: Return the hba serial number in ascii.
118 * @dev: class converted to a Scsi_host structure.
119 * @attr: device attribute, not used.
120 * @buf: on return contains the formatted text serial number.
121 *
122 * Returns: size of formatted string.
123 **/
84static ssize_t 124static ssize_t
85lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, 125lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
86 char *buf) 126 char *buf)
@@ -92,6 +132,18 @@ lpfc_serialnum_show(struct device *dev, struct device_attribute *attr,
92 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber); 132 return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber);
93} 133}
94 134
135/**
136 * lpfc_temp_sensor_show: Return the temperature sensor level.
137 * @dev: class converted to a Scsi_host structure.
138 * @attr: device attribute, not used.
139 * @buf: on return contains the formatted support level.
140 *
141 * Description:
142 * Returns a number indicating the temperature sensor level currently
143 * supported, zero or one in ascii.
144 *
145 * Returns: size of formatted string.
146 **/
95static ssize_t 147static ssize_t
96lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, 148lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
97 char *buf) 149 char *buf)
@@ -102,6 +154,14 @@ lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr,
102 return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support); 154 return snprintf(buf, PAGE_SIZE, "%d\n",phba->temp_sensor_support);
103} 155}
104 156
157/**
158 * lpfc_modeldesc_show: Return the model description of the hba.
159 * @dev: class converted to a Scsi_host structure.
160 * @attr: device attribute, not used.
161 * @buf: on return contains the scsi vpd model description.
162 *
163 * Returns: size of formatted string.
164 **/
105static ssize_t 165static ssize_t
106lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, 166lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
107 char *buf) 167 char *buf)
@@ -113,6 +173,14 @@ lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr,
113 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc); 173 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc);
114} 174}
115 175
176/**
177 * lpfc_modelname_show: Return the model name of the hba.
178 * @dev: class converted to a Scsi_host structure.
179 * @attr: device attribute, not used.
180 * @buf: on return contains the scsi vpd model name.
181 *
182 * Returns: size of formatted string.
183 **/
116static ssize_t 184static ssize_t
117lpfc_modelname_show(struct device *dev, struct device_attribute *attr, 185lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
118 char *buf) 186 char *buf)
@@ -124,6 +192,14 @@ lpfc_modelname_show(struct device *dev, struct device_attribute *attr,
124 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName); 192 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName);
125} 193}
126 194
195/**
196 * lpfc_programtype_show: Return the program type of the hba.
197 * @dev: class converted to a Scsi_host structure.
198 * @attr: device attribute, not used.
199 * @buf: on return contains the scsi vpd program type.
200 *
201 * Returns: size of formatted string.
202 **/
127static ssize_t 203static ssize_t
128lpfc_programtype_show(struct device *dev, struct device_attribute *attr, 204lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
129 char *buf) 205 char *buf)
@@ -135,6 +211,33 @@ lpfc_programtype_show(struct device *dev, struct device_attribute *attr,
135 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType); 211 return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType);
136} 212}
137 213
214/**
215 * lpfc_mlomgmt_show: Return the Menlo Maintenance sli flag.
216 * @dev: class converted to a Scsi_host structure.
217 * @attr: device attribute, not used.
218 * @buf: on return contains the Menlo Maintenance sli flag.
219 *
220 * Returns: size of formatted string.
221 **/
222static ssize_t
223lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf)
224{
225 struct Scsi_Host *shost = class_to_shost(dev);
226 struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
227 struct lpfc_hba *phba = vport->phba;
228
229 return snprintf(buf, PAGE_SIZE, "%d\n",
230 (phba->sli.sli_flag & LPFC_MENLO_MAINT));
231}
232
233/**
234 * lpfc_vportnum_show: Return the port number in ascii of the hba.
235 * @dev: class converted to a Scsi_host structure.
236 * @attr: device attribute, not used.
237 * @buf: on return contains scsi vpd program type.
238 *
239 * Returns: size of formatted string.
240 **/
138static ssize_t 241static ssize_t
139lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, 242lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
140 char *buf) 243 char *buf)
@@ -146,6 +249,14 @@ lpfc_vportnum_show(struct device *dev, struct device_attribute *attr,
146 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port); 249 return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port);
147} 250}
148 251
252/**
253 * lpfc_fwrev_show: Return the firmware rev running in the hba.
254 * @dev: class converted to a Scsi_host structure.
255 * @attr: device attribute, not used.
256 * @buf: on return contains the scsi vpd program type.
257 *
258 * Returns: size of formatted string.
259 **/
149static ssize_t 260static ssize_t
150lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, 261lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
151 char *buf) 262 char *buf)
@@ -159,6 +270,14 @@ lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
159 return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev); 270 return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
160} 271}
161 272
273/**
274 * lpfc_hdw_show: Return the jedec information about the hba.
275 * @dev: class converted to a Scsi_host structure.
276 * @attr: device attribute, not used.
277 * @buf: on return contains the scsi vpd program type.
278 *
279 * Returns: size of formatted string.
280 **/
162static ssize_t 281static ssize_t
163lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) 282lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
164{ 283{
@@ -171,6 +290,15 @@ lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf)
171 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); 290 lpfc_jedec_to_ascii(vp->rev.biuRev, hdw);
172 return snprintf(buf, PAGE_SIZE, "%s\n", hdw); 291 return snprintf(buf, PAGE_SIZE, "%s\n", hdw);
173} 292}
293
294/**
295 * lpfc_option_rom_version_show: Return the adapter ROM FCode version.
296 * @dev: class converted to a Scsi_host structure.
297 * @attr: device attribute, not used.
298 * @buf: on return contains the ROM and FCode ascii strings.
299 *
300 * Returns: size of formatted string.
301 **/
174static ssize_t 302static ssize_t
175lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, 303lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
176 char *buf) 304 char *buf)
@@ -181,6 +309,18 @@ lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr,
181 309
182 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion); 310 return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion);
183} 311}
312
313/**
314 * lpfc_state_show: Return the link state of the port.
315 * @dev: class converted to a Scsi_host structure.
316 * @attr: device attribute, not used.
317 * @buf: on return contains text describing the state of the link.
318 *
319 * Notes:
320 * The switch statement has no default so zero will be returned.
321 *
322 * Returns: size of formatted string.
323 **/
184static ssize_t 324static ssize_t
185lpfc_link_state_show(struct device *dev, struct device_attribute *attr, 325lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
186 char *buf) 326 char *buf)
@@ -232,8 +372,10 @@ lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
232 "Unknown\n"); 372 "Unknown\n");
233 break; 373 break;
234 } 374 }
235 375 if (phba->sli.sli_flag & LPFC_MENLO_MAINT)
236 if (phba->fc_topology == TOPOLOGY_LOOP) { 376 len += snprintf(buf + len, PAGE_SIZE-len,
377 " Menlo Maint Mode\n");
378 else if (phba->fc_topology == TOPOLOGY_LOOP) {
237 if (vport->fc_flag & FC_PUBLIC_LOOP) 379 if (vport->fc_flag & FC_PUBLIC_LOOP)
238 len += snprintf(buf + len, PAGE_SIZE-len, 380 len += snprintf(buf + len, PAGE_SIZE-len,
239 " Public Loop\n"); 381 " Public Loop\n");
@@ -253,6 +395,18 @@ lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
253 return len; 395 return len;
254} 396}
255 397
398/**
399 * lpfc_num_discovered_ports_show: Return sum of mapped and unmapped vports.
400 * @dev: class device that is converted into a Scsi_host.
401 * @attr: device attribute, not used.
402 * @buf: on return contains the sum of fc mapped and unmapped.
403 *
404 * Description:
405 * Returns the ascii text number of the sum of the fc mapped and unmapped
406 * vport counts.
407 *
408 * Returns: size of formatted string.
409 **/
256static ssize_t 410static ssize_t
257lpfc_num_discovered_ports_show(struct device *dev, 411lpfc_num_discovered_ports_show(struct device *dev,
258 struct device_attribute *attr, char *buf) 412 struct device_attribute *attr, char *buf)
@@ -264,7 +418,20 @@ lpfc_num_discovered_ports_show(struct device *dev,
264 vport->fc_map_cnt + vport->fc_unmap_cnt); 418 vport->fc_map_cnt + vport->fc_unmap_cnt);
265} 419}
266 420
267 421/**
422 * lpfc_issue_lip: Misnomer, name carried over from long ago.
423 * @shost: Scsi_Host pointer.
424 *
425 * Description:
426 * Bring the link down gracefully then re-init the link. The firmware will
427 * re-init the fiber channel interface as required. Does not issue a LIP.
428 *
429 * Returns:
430 * -EPERM port offline or management commands are being blocked
431 * -ENOMEM cannot allocate memory for the mailbox command
432 * -EIO error sending the mailbox command
433 * zero for success
434 **/
268static int 435static int
269lpfc_issue_lip(struct Scsi_Host *shost) 436lpfc_issue_lip(struct Scsi_Host *shost)
270{ 437{
@@ -306,6 +473,21 @@ lpfc_issue_lip(struct Scsi_Host *shost)
306 return 0; 473 return 0;
307} 474}
308 475
476/**
477 * lpfc_do_offline: Issues a mailbox command to bring the link down.
478 * @phba: lpfc_hba pointer.
479 * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL.
480 *
481 * Notes:
482 * Assumes any error from lpfc_do_offline() will be negative.
483 * Can wait up to 5 seconds for the port ring buffers count
484 * to reach zero, prints a warning if it is not zero and continues.
485 * lpfc_workq_post_event() returns a non-zero return coce if call fails.
486 *
487 * Returns:
488 * -EIO error posting the event
489 * zero for success
490 **/
309static int 491static int
310lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) 492lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
311{ 493{
@@ -353,6 +535,22 @@ lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
353 return 0; 535 return 0;
354} 536}
355 537
538/**
539 * lpfc_selective_reset: Offline then onlines the port.
540 * @phba: lpfc_hba pointer.
541 *
542 * Description:
543 * If the port is configured to allow a reset then the hba is brought
544 * offline then online.
545 *
546 * Notes:
547 * Assumes any error from lpfc_do_offline() will be negative.
548 *
549 * Returns:
550 * lpfc_do_offline() return code if not zero
551 * -EIO reset not configured or error posting the event
552 * zero for success
553 **/
356static int 554static int
357lpfc_selective_reset(struct lpfc_hba *phba) 555lpfc_selective_reset(struct lpfc_hba *phba)
358{ 556{
@@ -378,6 +576,27 @@ lpfc_selective_reset(struct lpfc_hba *phba)
378 return 0; 576 return 0;
379} 577}
380 578
579/**
580 * lpfc_issue_reset: Selectively resets an adapter.
581 * @dev: class device that is converted into a Scsi_host.
582 * @attr: device attribute, not used.
583 * @buf: containing the string "selective".
584 * @count: unused variable.
585 *
586 * Description:
587 * If the buf contains the string "selective" then lpfc_selective_reset()
588 * is called to perform the reset.
589 *
590 * Notes:
591 * Assumes any error from lpfc_selective_reset() will be negative.
592 * If lpfc_selective_reset() returns zero then the length of the buffer
593 * is returned which indicates succcess
594 *
595 * Returns:
596 * -EINVAL if the buffer does not contain the string "selective"
597 * length of buf if lpfc-selective_reset() if the call succeeds
598 * return value of lpfc_selective_reset() if the call fails
599**/
381static ssize_t 600static ssize_t
382lpfc_issue_reset(struct device *dev, struct device_attribute *attr, 601lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
383 const char *buf, size_t count) 602 const char *buf, size_t count)
@@ -397,6 +616,14 @@ lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
397 return status; 616 return status;
398} 617}
399 618
619/**
620 * lpfc_nport_evt_cnt_show: Return the number of nport events.
621 * @dev: class device that is converted into a Scsi_host.
622 * @attr: device attribute, not used.
623 * @buf: on return contains the ascii number of nport events.
624 *
625 * Returns: size of formatted string.
626 **/
400static ssize_t 627static ssize_t
401lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, 628lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
402 char *buf) 629 char *buf)
@@ -408,6 +635,14 @@ lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr,
408 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); 635 return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt);
409} 636}
410 637
638/**
639 * lpfc_board_mode_show: Return the state of the board.
640 * @dev: class device that is converted into a Scsi_host.
641 * @attr: device attribute, not used.
642 * @buf: on return contains the state of the adapter.
643 *
644 * Returns: size of formatted string.
645 **/
411static ssize_t 646static ssize_t
412lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, 647lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
413 char *buf) 648 char *buf)
@@ -429,6 +664,19 @@ lpfc_board_mode_show(struct device *dev, struct device_attribute *attr,
429 return snprintf(buf, PAGE_SIZE, "%s\n", state); 664 return snprintf(buf, PAGE_SIZE, "%s\n", state);
430} 665}
431 666
667/**
668 * lpfc_board_mode_store: Puts the hba in online, offline, warm or error state.
669 * @dev: class device that is converted into a Scsi_host.
670 * @attr: device attribute, not used.
671 * @buf: containing one of the strings "online", "offline", "warm" or "error".
672 * @count: unused variable.
673 *
674 * Returns:
675 * -EACCES if enable hba reset not enabled
676 * -EINVAL if the buffer does not contain a valid string (see above)
677 * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails
678 * buf length greater than zero indicates success
679 **/
432static ssize_t 680static ssize_t
433lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, 681lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
434 const char *buf, size_t count) 682 const char *buf, size_t count)
@@ -462,6 +710,24 @@ lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
462 return -EIO; 710 return -EIO;
463} 711}
464 712
713/**
714 * lpfc_get_hba_info: Return various bits of informaton about the adapter.
715 * @phba: pointer to the adapter structure.
716 * @mxri max xri count.
717 * @axri available xri count.
718 * @mrpi max rpi count.
719 * @arpi available rpi count.
720 * @mvpi max vpi count.
721 * @avpi available vpi count.
722 *
723 * Description:
724 * If an integer pointer for an count is not null then the value for the
725 * count is returned.
726 *
727 * Returns:
728 * zero on error
729 * one for success
730 **/
465static int 731static int
466lpfc_get_hba_info(struct lpfc_hba *phba, 732lpfc_get_hba_info(struct lpfc_hba *phba,
467 uint32_t *mxri, uint32_t *axri, 733 uint32_t *mxri, uint32_t *axri,
@@ -524,6 +790,20 @@ lpfc_get_hba_info(struct lpfc_hba *phba,
524 return 1; 790 return 1;
525} 791}
526 792
793/**
794 * lpfc_max_rpi_show: Return maximum rpi.
795 * @dev: class device that is converted into a Scsi_host.
796 * @attr: device attribute, not used.
797 * @buf: on return contains the maximum rpi count in decimal or "Unknown".
798 *
799 * Description:
800 * Calls lpfc_get_hba_info() asking for just the mrpi count.
801 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
802 * to "Unknown" and the buffer length is returned, therefore the caller
803 * must check for "Unknown" in the buffer to detect a failure.
804 *
805 * Returns: size of formatted string.
806 **/
527static ssize_t 807static ssize_t
528lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, 808lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
529 char *buf) 809 char *buf)
@@ -538,6 +818,20 @@ lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr,
538 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 818 return snprintf(buf, PAGE_SIZE, "Unknown\n");
539} 819}
540 820
821/**
822 * lpfc_used_rpi_show: Return maximum rpi minus available rpi.
823 * @dev: class device that is converted into a Scsi_host.
824 * @attr: device attribute, not used.
825 * @buf: containing the used rpi count in decimal or "Unknown".
826 *
827 * Description:
828 * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts.
829 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
830 * to "Unknown" and the buffer length is returned, therefore the caller
831 * must check for "Unknown" in the buffer to detect a failure.
832 *
833 * Returns: size of formatted string.
834 **/
541static ssize_t 835static ssize_t
542lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, 836lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
543 char *buf) 837 char *buf)
@@ -552,6 +846,20 @@ lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr,
552 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 846 return snprintf(buf, PAGE_SIZE, "Unknown\n");
553} 847}
554 848
849/**
850 * lpfc_max_xri_show: Return maximum xri.
851 * @dev: class device that is converted into a Scsi_host.
852 * @attr: device attribute, not used.
853 * @buf: on return contains the maximum xri count in decimal or "Unknown".
854 *
855 * Description:
856 * Calls lpfc_get_hba_info() asking for just the mrpi count.
857 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
858 * to "Unknown" and the buffer length is returned, therefore the caller
859 * must check for "Unknown" in the buffer to detect a failure.
860 *
861 * Returns: size of formatted string.
862 **/
555static ssize_t 863static ssize_t
556lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, 864lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
557 char *buf) 865 char *buf)
@@ -566,6 +874,20 @@ lpfc_max_xri_show(struct device *dev, struct device_attribute *attr,
566 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 874 return snprintf(buf, PAGE_SIZE, "Unknown\n");
567} 875}
568 876
877/**
878 * lpfc_used_xri_show: Return maximum xpi minus the available xpi.
879 * @dev: class device that is converted into a Scsi_host.
880 * @attr: device attribute, not used.
881 * @buf: on return contains the used xri count in decimal or "Unknown".
882 *
883 * Description:
884 * Calls lpfc_get_hba_info() asking for just the mxri and axri counts.
885 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
886 * to "Unknown" and the buffer length is returned, therefore the caller
887 * must check for "Unknown" in the buffer to detect a failure.
888 *
889 * Returns: size of formatted string.
890 **/
569static ssize_t 891static ssize_t
570lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, 892lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
571 char *buf) 893 char *buf)
@@ -580,6 +902,20 @@ lpfc_used_xri_show(struct device *dev, struct device_attribute *attr,
580 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 902 return snprintf(buf, PAGE_SIZE, "Unknown\n");
581} 903}
582 904
905/**
906 * lpfc_max_vpi_show: Return maximum vpi.
907 * @dev: class device that is converted into a Scsi_host.
908 * @attr: device attribute, not used.
909 * @buf: on return contains the maximum vpi count in decimal or "Unknown".
910 *
911 * Description:
912 * Calls lpfc_get_hba_info() asking for just the mvpi count.
913 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
914 * to "Unknown" and the buffer length is returned, therefore the caller
915 * must check for "Unknown" in the buffer to detect a failure.
916 *
917 * Returns: size of formatted string.
918 **/
583static ssize_t 919static ssize_t
584lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, 920lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
585 char *buf) 921 char *buf)
@@ -594,6 +930,20 @@ lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr,
594 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 930 return snprintf(buf, PAGE_SIZE, "Unknown\n");
595} 931}
596 932
933/**
934 * lpfc_used_vpi_show: Return maximum vpi minus the available vpi.
935 * @dev: class device that is converted into a Scsi_host.
936 * @attr: device attribute, not used.
937 * @buf: on return contains the used vpi count in decimal or "Unknown".
938 *
939 * Description:
940 * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts.
941 * If lpfc_get_hba_info() returns zero (failure) the buffer text is set
942 * to "Unknown" and the buffer length is returned, therefore the caller
943 * must check for "Unknown" in the buffer to detect a failure.
944 *
945 * Returns: size of formatted string.
946 **/
597static ssize_t 947static ssize_t
598lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, 948lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
599 char *buf) 949 char *buf)
@@ -608,6 +958,19 @@ lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr,
608 return snprintf(buf, PAGE_SIZE, "Unknown\n"); 958 return snprintf(buf, PAGE_SIZE, "Unknown\n");
609} 959}
610 960
961/**
962 * lpfc_npiv_info_show: Return text about NPIV support for the adapter.
963 * @dev: class device that is converted into a Scsi_host.
964 * @attr: device attribute, not used.
965 * @buf: text that must be interpreted to determine if npiv is supported.
966 *
967 * Description:
968 * Buffer will contain text indicating npiv is not suppoerted on the port,
969 * the port is an NPIV physical port, or it is an npiv virtual port with
970 * the id of the vport.
971 *
972 * Returns: size of formatted string.
973 **/
611static ssize_t 974static ssize_t
612lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, 975lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
613 char *buf) 976 char *buf)
@@ -623,6 +986,17 @@ lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr,
623 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); 986 return snprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi);
624} 987}
625 988
989/**
990 * lpfc_poll_show: Return text about poll support for the adapter.
991 * @dev: class device that is converted into a Scsi_host.
992 * @attr: device attribute, not used.
993 * @buf: on return contains the cfg_poll in hex.
994 *
995 * Notes:
996 * cfg_poll should be a lpfc_polling_flags type.
997 *
998 * Returns: size of formatted string.
999 **/
626static ssize_t 1000static ssize_t
627lpfc_poll_show(struct device *dev, struct device_attribute *attr, 1001lpfc_poll_show(struct device *dev, struct device_attribute *attr,
628 char *buf) 1002 char *buf)
@@ -634,6 +1008,20 @@ lpfc_poll_show(struct device *dev, struct device_attribute *attr,
634 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); 1008 return snprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll);
635} 1009}
636 1010
1011/**
1012 * lpfc_poll_store: Set the value of cfg_poll for the adapter.
1013 * @dev: class device that is converted into a Scsi_host.
1014 * @attr: device attribute, not used.
1015 * @buf: one or more lpfc_polling_flags values.
1016 * @count: not used.
1017 *
1018 * Notes:
1019 * buf contents converted to integer and checked for a valid value.
1020 *
1021 * Returns:
1022 * -EINVAL if the buffer connot be converted or is out of range
1023 * length of the buf on success
1024 **/
637static ssize_t 1025static ssize_t
638lpfc_poll_store(struct device *dev, struct device_attribute *attr, 1026lpfc_poll_store(struct device *dev, struct device_attribute *attr,
639 const char *buf, size_t count) 1027 const char *buf, size_t count)
@@ -692,6 +1080,20 @@ lpfc_poll_store(struct device *dev, struct device_attribute *attr,
692 return strlen(buf); 1080 return strlen(buf);
693} 1081}
694 1082
1083/**
1084 * lpfc_param_show: Return a cfg attribute value in decimal.
1085 *
1086 * Description:
1087 * Macro that given an attr e.g. hba_queue_depth expands
1088 * into a function with the name lpfc_hba_queue_depth_show.
1089 *
1090 * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field.
1091 * @dev: class device that is converted into a Scsi_host.
1092 * @attr: device attribute, not used.
1093 * @buf: on return contains the attribute value in decimal.
1094 *
1095 * Returns: size of formatted string.
1096 **/
695#define lpfc_param_show(attr) \ 1097#define lpfc_param_show(attr) \
696static ssize_t \ 1098static ssize_t \
697lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 1099lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
@@ -706,6 +1108,20 @@ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
706 phba->cfg_##attr);\ 1108 phba->cfg_##attr);\
707} 1109}
708 1110
1111/**
1112 * lpfc_param_hex_show: Return a cfg attribute value in hex.
1113 *
1114 * Description:
1115 * Macro that given an attr e.g. hba_queue_depth expands
1116 * into a function with the name lpfc_hba_queue_depth_show
1117 *
1118 * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field.
1119 * @dev: class device that is converted into a Scsi_host.
1120 * @attr: device attribute, not used.
1121 * @buf: on return contains the attribute value in hexidecimal.
1122 *
1123 * Returns: size of formatted string.
1124 **/
709#define lpfc_param_hex_show(attr) \ 1125#define lpfc_param_hex_show(attr) \
710static ssize_t \ 1126static ssize_t \
711lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 1127lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
@@ -720,6 +1136,25 @@ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
720 phba->cfg_##attr);\ 1136 phba->cfg_##attr);\
721} 1137}
722 1138
1139/**
1140 * lpfc_param_init: Intializes a cfg attribute.
1141 *
1142 * Description:
1143 * Macro that given an attr e.g. hba_queue_depth expands
1144 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1145 * takes a default argument, a minimum and maximum argument.
1146 *
1147 * lpfc_##attr##_init: Initializes an attribute.
1148 * @phba: pointer the the adapter structure.
1149 * @val: integer attribute value.
1150 *
1151 * Validates the min and max values then sets the adapter config field
1152 * accordingly, or uses the default if out of range and prints an error message.
1153 *
1154 * Returns:
1155 * zero on success
1156 * -EINVAL if default used
1157 **/
723#define lpfc_param_init(attr, default, minval, maxval) \ 1158#define lpfc_param_init(attr, default, minval, maxval) \
724static int \ 1159static int \
725lpfc_##attr##_init(struct lpfc_hba *phba, int val) \ 1160lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
@@ -735,6 +1170,26 @@ lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
735 return -EINVAL;\ 1170 return -EINVAL;\
736} 1171}
737 1172
1173/**
1174 * lpfc_param_set: Set a cfg attribute value.
1175 *
1176 * Description:
1177 * Macro that given an attr e.g. hba_queue_depth expands
1178 * into a function with the name lpfc_hba_queue_depth_set
1179 *
1180 * lpfc_##attr##_set: Sets an attribute value.
1181 * @phba: pointer the the adapter structure.
1182 * @val: integer attribute value.
1183 *
1184 * Description:
1185 * Validates the min and max values then sets the
1186 * adapter config field if in the valid range. prints error message
1187 * and does not set the parameter if invalid.
1188 *
1189 * Returns:
1190 * zero on success
1191 * -EINVAL if val is invalid
1192 **/
738#define lpfc_param_set(attr, default, minval, maxval) \ 1193#define lpfc_param_set(attr, default, minval, maxval) \
739static int \ 1194static int \
740lpfc_##attr##_set(struct lpfc_hba *phba, int val) \ 1195lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
@@ -749,6 +1204,27 @@ lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
749 return -EINVAL;\ 1204 return -EINVAL;\
750} 1205}
751 1206
1207/**
1208 * lpfc_param_store: Set a vport attribute value.
1209 *
1210 * Description:
1211 * Macro that given an attr e.g. hba_queue_depth expands
1212 * into a function with the name lpfc_hba_queue_depth_store.
1213 *
1214 * lpfc_##attr##_store: Set an sttribute value.
1215 * @dev: class device that is converted into a Scsi_host.
1216 * @attr: device attribute, not used.
1217 * @buf: contains the attribute value in ascii.
1218 * @count: not used.
1219 *
1220 * Description:
1221 * Convert the ascii text number to an integer, then
1222 * use the lpfc_##attr##_set function to set the value.
1223 *
1224 * Returns:
1225 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1226 * length of buffer upon success.
1227 **/
752#define lpfc_param_store(attr) \ 1228#define lpfc_param_store(attr) \
753static ssize_t \ 1229static ssize_t \
754lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 1230lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
@@ -768,6 +1244,20 @@ lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
768 return -EINVAL;\ 1244 return -EINVAL;\
769} 1245}
770 1246
1247/**
1248 * lpfc_vport_param_show: Return decimal formatted cfg attribute value.
1249 *
1250 * Description:
1251 * Macro that given an attr e.g. hba_queue_depth expands
1252 * into a function with the name lpfc_hba_queue_depth_show
1253 *
1254 * lpfc_##attr##_show: prints the attribute value in decimal.
1255 * @dev: class device that is converted into a Scsi_host.
1256 * @attr: device attribute, not used.
1257 * @buf: on return contains the attribute value in decimal.
1258 *
1259 * Returns: length of formatted string.
1260 **/
771#define lpfc_vport_param_show(attr) \ 1261#define lpfc_vport_param_show(attr) \
772static ssize_t \ 1262static ssize_t \
773lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 1263lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
@@ -780,6 +1270,21 @@ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
780 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ 1270 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
781} 1271}
782 1272
1273/**
1274 * lpfc_vport_param_hex_show: Return hex formatted attribute value.
1275 *
1276 * Description:
1277 * Macro that given an attr e.g.
1278 * hba_queue_depth expands into a function with the name
1279 * lpfc_hba_queue_depth_show
1280 *
1281 * lpfc_##attr##_show: prints the attribute value in hexidecimal.
1282 * @dev: class device that is converted into a Scsi_host.
1283 * @attr: device attribute, not used.
1284 * @buf: on return contains the attribute value in hexidecimal.
1285 *
1286 * Returns: length of formatted string.
1287 **/
783#define lpfc_vport_param_hex_show(attr) \ 1288#define lpfc_vport_param_hex_show(attr) \
784static ssize_t \ 1289static ssize_t \
785lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ 1290lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
@@ -792,6 +1297,24 @@ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
792 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ 1297 return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
793} 1298}
794 1299
1300/**
1301 * lpfc_vport_param_init: Initialize a vport cfg attribute.
1302 *
1303 * Description:
1304 * Macro that given an attr e.g. hba_queue_depth expands
1305 * into a function with the name lpfc_hba_queue_depth_init. The macro also
1306 * takes a default argument, a minimum and maximum argument.
1307 *
1308 * lpfc_##attr##_init: validates the min and max values then sets the
1309 * adapter config field accordingly, or uses the default if out of range
1310 * and prints an error message.
1311 * @phba: pointer the the adapter structure.
1312 * @val: integer attribute value.
1313 *
1314 * Returns:
1315 * zero on success
1316 * -EINVAL if default used
1317 **/
795#define lpfc_vport_param_init(attr, default, minval, maxval) \ 1318#define lpfc_vport_param_init(attr, default, minval, maxval) \
796static int \ 1319static int \
797lpfc_##attr##_init(struct lpfc_vport *vport, int val) \ 1320lpfc_##attr##_init(struct lpfc_vport *vport, int val) \
@@ -801,12 +1324,29 @@ lpfc_##attr##_init(struct lpfc_vport *vport, int val) \
801 return 0;\ 1324 return 0;\
802 }\ 1325 }\
803 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 1326 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
804 "0449 lpfc_"#attr" attribute cannot be set to %d, "\ 1327 "0423 lpfc_"#attr" attribute cannot be set to %d, "\
805 "allowed range is ["#minval", "#maxval"]\n", val); \ 1328 "allowed range is ["#minval", "#maxval"]\n", val); \
806 vport->cfg_##attr = default;\ 1329 vport->cfg_##attr = default;\
807 return -EINVAL;\ 1330 return -EINVAL;\
808} 1331}
809 1332
1333/**
1334 * lpfc_vport_param_set: Set a vport cfg attribute.
1335 *
1336 * Description:
1337 * Macro that given an attr e.g. hba_queue_depth expands
1338 * into a function with the name lpfc_hba_queue_depth_set
1339 *
1340 * lpfc_##attr##_set: validates the min and max values then sets the
1341 * adapter config field if in the valid range. prints error message
1342 * and does not set the parameter if invalid.
1343 * @phba: pointer the the adapter structure.
1344 * @val: integer attribute value.
1345 *
1346 * Returns:
1347 * zero on success
1348 * -EINVAL if val is invalid
1349 **/
810#define lpfc_vport_param_set(attr, default, minval, maxval) \ 1350#define lpfc_vport_param_set(attr, default, minval, maxval) \
811static int \ 1351static int \
812lpfc_##attr##_set(struct lpfc_vport *vport, int val) \ 1352lpfc_##attr##_set(struct lpfc_vport *vport, int val) \
@@ -816,11 +1356,28 @@ lpfc_##attr##_set(struct lpfc_vport *vport, int val) \
816 return 0;\ 1356 return 0;\
817 }\ 1357 }\
818 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ 1358 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \
819 "0450 lpfc_"#attr" attribute cannot be set to %d, "\ 1359 "0424 lpfc_"#attr" attribute cannot be set to %d, "\
820 "allowed range is ["#minval", "#maxval"]\n", val); \ 1360 "allowed range is ["#minval", "#maxval"]\n", val); \
821 return -EINVAL;\ 1361 return -EINVAL;\
822} 1362}
823 1363
1364/**
1365 * lpfc_vport_param_store: Set a vport attribute.
1366 *
1367 * Description:
1368 * Macro that given an attr e.g. hba_queue_depth
1369 * expands into a function with the name lpfc_hba_queue_depth_store
1370 *
1371 * lpfc_##attr##_store: convert the ascii text number to an integer, then
1372 * use the lpfc_##attr##_set function to set the value.
1373 * @cdev: class device that is converted into a Scsi_host.
1374 * @buf: contains the attribute value in decimal.
1375 * @count: not used.
1376 *
1377 * Returns:
1378 * -EINVAL if val is invalid or lpfc_##attr##_set() fails
1379 * length of buffer upon success.
1380 **/
824#define lpfc_vport_param_store(attr) \ 1381#define lpfc_vport_param_store(attr) \
825static ssize_t \ 1382static ssize_t \
826lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ 1383lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
@@ -941,6 +1498,7 @@ static DEVICE_ATTR(option_rom_version, S_IRUGO,
941 lpfc_option_rom_version_show, NULL); 1498 lpfc_option_rom_version_show, NULL);
942static DEVICE_ATTR(num_discovered_ports, S_IRUGO, 1499static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
943 lpfc_num_discovered_ports_show, NULL); 1500 lpfc_num_discovered_ports_show, NULL);
1501static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL);
944static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); 1502static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL);
945static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL); 1503static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL);
946static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, 1504static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
@@ -958,6 +1516,17 @@ static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL);
958 1516
959static char *lpfc_soft_wwn_key = "C99G71SL8032A"; 1517static char *lpfc_soft_wwn_key = "C99G71SL8032A";
960 1518
1519/**
1520 * lpfc_soft_wwn_enable_store: Allows setting of the wwn if the key is valid.
1521 * @dev: class device that is converted into a Scsi_host.
1522 * @attr: device attribute, not used.
1523 * @buf: containing the string lpfc_soft_wwn_key.
1524 * @count: must be size of lpfc_soft_wwn_key.
1525 *
1526 * Returns:
1527 * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
1528 * length of buf indicates success
1529 **/
961static ssize_t 1530static ssize_t
962lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, 1531lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
963 const char *buf, size_t count) 1532 const char *buf, size_t count)
@@ -994,6 +1563,14 @@ lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr,
994static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL, 1563static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL,
995 lpfc_soft_wwn_enable_store); 1564 lpfc_soft_wwn_enable_store);
996 1565
1566/**
1567 * lpfc_soft_wwpn_show: Return the cfg soft ww port name of the adapter.
1568 * @dev: class device that is converted into a Scsi_host.
1569 * @attr: device attribute, not used.
1570 * @buf: on return contains the wwpn in hexidecimal.
1571 *
1572 * Returns: size of formatted string.
1573 **/
997static ssize_t 1574static ssize_t
998lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, 1575lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
999 char *buf) 1576 char *buf)
@@ -1006,7 +1583,19 @@ lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr,
1006 (unsigned long long)phba->cfg_soft_wwpn); 1583 (unsigned long long)phba->cfg_soft_wwpn);
1007} 1584}
1008 1585
1009 1586/**
1587 * lpfc_soft_wwpn_store: Set the ww port name of the adapter.
1588 * @dev class device that is converted into a Scsi_host.
1589 * @attr: device attribute, not used.
1590 * @buf: contains the wwpn in hexidecimal.
1591 * @count: number of wwpn bytes in buf
1592 *
1593 * Returns:
1594 * -EACCES hba reset not enabled, adapter over temp
1595 * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
1596 * -EIO error taking adapter offline or online
1597 * value of count on success
1598 **/
1010static ssize_t 1599static ssize_t
1011lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, 1600lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
1012 const char *buf, size_t count) 1601 const char *buf, size_t count)
@@ -1080,6 +1669,14 @@ lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
1080static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\ 1669static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
1081 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store); 1670 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
1082 1671
1672/**
1673 * lpfc_soft_wwnn_show: Return the cfg soft ww node name for the adapter.
1674 * @dev: class device that is converted into a Scsi_host.
1675 * @attr: device attribute, not used.
1676 * @buf: on return contains the wwnn in hexidecimal.
1677 *
1678 * Returns: size of formatted string.
1679 **/
1083static ssize_t 1680static ssize_t
1084lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, 1681lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
1085 char *buf) 1682 char *buf)
@@ -1090,7 +1687,16 @@ lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr,
1090 (unsigned long long)phba->cfg_soft_wwnn); 1687 (unsigned long long)phba->cfg_soft_wwnn);
1091} 1688}
1092 1689
1093 1690/**
1691 * lpfc_soft_wwnn_store: sets the ww node name of the adapter.
1692 * @cdev: class device that is converted into a Scsi_host.
1693 * @buf: contains the ww node name in hexidecimal.
1694 * @count: number of wwnn bytes in buf.
1695 *
1696 * Returns:
1697 * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
1698 * value of count on success
1699 **/
1094static ssize_t 1700static ssize_t
1095lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, 1701lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
1096 const char *buf, size_t count) 1702 const char *buf, size_t count)
@@ -1178,6 +1784,15 @@ module_param(lpfc_nodev_tmo, int, 0);
1178MODULE_PARM_DESC(lpfc_nodev_tmo, 1784MODULE_PARM_DESC(lpfc_nodev_tmo,
1179 "Seconds driver will hold I/O waiting " 1785 "Seconds driver will hold I/O waiting "
1180 "for a device to come back"); 1786 "for a device to come back");
1787
1788/**
1789 * lpfc_nodev_tmo_show: Return the hba dev loss timeout value.
1790 * @dev: class converted to a Scsi_host structure.
1791 * @attr: device attribute, not used.
1792 * @buf: on return contains the dev loss timeout in decimal.
1793 *
1794 * Returns: size of formatted string.
1795 **/
1181static ssize_t 1796static ssize_t
1182lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, 1797lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
1183 char *buf) 1798 char *buf)
@@ -1189,6 +1804,21 @@ lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr,
1189 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); 1804 return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo);
1190} 1805}
1191 1806
1807/**
1808 * lpfc_nodev_tmo_init: Set the hba nodev timeout value.
1809 * @vport: lpfc vport structure pointer.
1810 * @val: contains the nodev timeout value.
1811 *
1812 * Description:
1813 * If the devloss tmo is already set then nodev tmo is set to devloss tmo,
1814 * a kernel error message is printed and zero is returned.
1815 * Else if val is in range then nodev tmo and devloss tmo are set to val.
1816 * Otherwise nodev tmo is set to the default value.
1817 *
1818 * Returns:
1819 * zero if already set or if val is in range
1820 * -EINVAL val out of range
1821 **/
1192static int 1822static int
1193lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) 1823lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
1194{ 1824{
@@ -1196,7 +1826,7 @@ lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
1196 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; 1826 vport->cfg_nodev_tmo = vport->cfg_devloss_tmo;
1197 if (val != LPFC_DEF_DEVLOSS_TMO) 1827 if (val != LPFC_DEF_DEVLOSS_TMO)
1198 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1828 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1199 "0402 Ignoring nodev_tmo module " 1829 "0407 Ignoring nodev_tmo module "
1200 "parameter because devloss_tmo is " 1830 "parameter because devloss_tmo is "
1201 "set.\n"); 1831 "set.\n");
1202 return 0; 1832 return 0;
@@ -1215,6 +1845,13 @@ lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val)
1215 return -EINVAL; 1845 return -EINVAL;
1216} 1846}
1217 1847
1848/**
1849 * lpfc_update_rport_devloss_tmo: Update dev loss tmo value.
1850 * @vport: lpfc vport structure pointer.
1851 *
1852 * Description:
1853 * Update all the ndlp's dev loss tmo with the vport devloss tmo value.
1854 **/
1218static void 1855static void
1219lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) 1856lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
1220{ 1857{
@@ -1229,6 +1866,21 @@ lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
1229 spin_unlock_irq(shost->host_lock); 1866 spin_unlock_irq(shost->host_lock);
1230} 1867}
1231 1868
1869/**
1870 * lpfc_nodev_tmo_set: Set the vport nodev tmo and devloss tmo values.
1871 * @vport: lpfc vport structure pointer.
1872 * @val: contains the tmo value.
1873 *
1874 * Description:
1875 * If the devloss tmo is already set or the vport dev loss tmo has changed
1876 * then a kernel error message is printed and zero is returned.
1877 * Else if val is in range then nodev tmo and devloss tmo are set to val.
1878 * Otherwise nodev tmo is set to the default value.
1879 *
1880 * Returns:
1881 * zero if already set or if val is in range
1882 * -EINVAL val out of range
1883 **/
1232static int 1884static int
1233lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) 1885lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val)
1234{ 1886{
@@ -1269,6 +1921,21 @@ MODULE_PARM_DESC(lpfc_devloss_tmo,
1269lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, 1921lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
1270 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) 1922 LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
1271lpfc_vport_param_show(devloss_tmo) 1923lpfc_vport_param_show(devloss_tmo)
1924
1925/**
1926 * lpfc_devloss_tmo_set: Sets vport nodev tmo, devloss tmo values, changed bit.
1927 * @vport: lpfc vport structure pointer.
1928 * @val: contains the tmo value.
1929 *
1930 * Description:
1931 * If val is in a valid range then set the vport nodev tmo,
1932 * devloss tmo, also set the vport dev loss tmo changed flag.
1933 * Else a kernel error message is printed.
1934 *
1935 * Returns:
1936 * zero if val is in range
1937 * -EINVAL val out of range
1938 **/
1272static int 1939static int
1273lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) 1940lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val)
1274{ 1941{
@@ -1366,12 +2033,27 @@ MODULE_PARM_DESC(lpfc_restrict_login,
1366 "Restrict virtual ports login to remote initiators."); 2033 "Restrict virtual ports login to remote initiators.");
1367lpfc_vport_param_show(restrict_login); 2034lpfc_vport_param_show(restrict_login);
1368 2035
2036/**
2037 * lpfc_restrict_login_init: Set the vport restrict login flag.
2038 * @vport: lpfc vport structure pointer.
2039 * @val: contains the restrict login value.
2040 *
2041 * Description:
2042 * If val is not in a valid range then log a kernel error message and set
2043 * the vport restrict login to one.
2044 * If the port type is physical clear the restrict login flag and return.
2045 * Else set the restrict login flag to val.
2046 *
2047 * Returns:
2048 * zero if val is in range
2049 * -EINVAL val out of range
2050 **/
1369static int 2051static int
1370lpfc_restrict_login_init(struct lpfc_vport *vport, int val) 2052lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
1371{ 2053{
1372 if (val < 0 || val > 1) { 2054 if (val < 0 || val > 1) {
1373 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2055 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1374 "0449 lpfc_restrict_login attribute cannot " 2056 "0422 lpfc_restrict_login attribute cannot "
1375 "be set to %d, allowed range is [0, 1]\n", 2057 "be set to %d, allowed range is [0, 1]\n",
1376 val); 2058 val);
1377 vport->cfg_restrict_login = 1; 2059 vport->cfg_restrict_login = 1;
@@ -1385,12 +2067,28 @@ lpfc_restrict_login_init(struct lpfc_vport *vport, int val)
1385 return 0; 2067 return 0;
1386} 2068}
1387 2069
2070/**
2071 * lpfc_restrict_login_set: Set the vport restrict login flag.
2072 * @vport: lpfc vport structure pointer.
2073 * @val: contains the restrict login value.
2074 *
2075 * Description:
2076 * If val is not in a valid range then log a kernel error message and set
2077 * the vport restrict login to one.
2078 * If the port type is physical and the val is not zero log a kernel
2079 * error message, clear the restrict login flag and return zero.
2080 * Else set the restrict login flag to val.
2081 *
2082 * Returns:
2083 * zero if val is in range
2084 * -EINVAL val out of range
2085 **/
1388static int 2086static int
1389lpfc_restrict_login_set(struct lpfc_vport *vport, int val) 2087lpfc_restrict_login_set(struct lpfc_vport *vport, int val)
1390{ 2088{
1391 if (val < 0 || val > 1) { 2089 if (val < 0 || val > 1) {
1392 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 2090 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1393 "0450 lpfc_restrict_login attribute cannot " 2091 "0425 lpfc_restrict_login attribute cannot "
1394 "be set to %d, allowed range is [0, 1]\n", 2092 "be set to %d, allowed range is [0, 1]\n",
1395 val); 2093 val);
1396 vport->cfg_restrict_login = 1; 2094 vport->cfg_restrict_login = 1;
@@ -1441,6 +2139,23 @@ LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
1441# Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. 2139# Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
1442# Default value is 0. 2140# Default value is 0.
1443*/ 2141*/
2142
2143/**
2144 * lpfc_topology_set: Set the adapters topology field.
2145 * @phba: lpfc_hba pointer.
2146 * @val: topology value.
2147 *
2148 * Description:
2149 * If val is in a valid range then set the adapter's topology field and
2150 * issue a lip; if the lip fails reset the topology to the old value.
2151 *
2152 * If the value is not in range log a kernel error message and return an error.
2153 *
2154 * Returns:
2155 * zero if val is in range and lip okay
2156 * non-zero return value from lpfc_issue_lip()
2157 * -EINVAL val out of range
2158 **/
1444static int 2159static int
1445lpfc_topology_set(struct lpfc_hba *phba, int val) 2160lpfc_topology_set(struct lpfc_hba *phba, int val)
1446{ 2161{
@@ -1469,6 +2184,335 @@ lpfc_param_store(topology)
1469static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR, 2184static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
1470 lpfc_topology_show, lpfc_topology_store); 2185 lpfc_topology_show, lpfc_topology_store);
1471 2186
2187
2188/**
2189 * lpfc_stat_data_ctrl_store: write call back for lpfc_stat_data_ctrl
2190 * sysfs file.
2191 * @dev: Pointer to class device.
2192 * @buf: Data buffer.
2193 * @count: Size of the data buffer.
2194 *
2195 * This function get called when an user write to the lpfc_stat_data_ctrl
2196 * sysfs file. This function parse the command written to the sysfs file
2197 * and take appropriate action. These commands are used for controlling
2198 * driver statistical data collection.
2199 * Following are the command this function handles.
2200 *
2201 * setbucket <bucket_type> <base> <step>
2202 * = Set the latency buckets.
2203 * destroybucket = destroy all the buckets.
2204 * start = start data collection
2205 * stop = stop data collection
2206 * reset = reset the collected data
2207 **/
2208static ssize_t
2209lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
2210 const char *buf, size_t count)
2211{
2212 struct Scsi_Host *shost = class_to_shost(dev);
2213 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2214 struct lpfc_hba *phba = vport->phba;
2215#define LPFC_MAX_DATA_CTRL_LEN 1024
2216 static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
2217 unsigned long i;
2218 char *str_ptr, *token;
2219 struct lpfc_vport **vports;
2220 struct Scsi_Host *v_shost;
2221 char *bucket_type_str, *base_str, *step_str;
2222 unsigned long base, step, bucket_type;
2223
2224 if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
2225 if (strlen(buf) > LPFC_MAX_DATA_CTRL_LEN)
2226 return -EINVAL;
2227
2228 strcpy(bucket_data, buf);
2229 str_ptr = &bucket_data[0];
2230 /* Ignore this token - this is command token */
2231 token = strsep(&str_ptr, "\t ");
2232 if (!token)
2233 return -EINVAL;
2234
2235 bucket_type_str = strsep(&str_ptr, "\t ");
2236 if (!bucket_type_str)
2237 return -EINVAL;
2238
2239 if (!strncmp(bucket_type_str, "linear", strlen("linear")))
2240 bucket_type = LPFC_LINEAR_BUCKET;
2241 else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
2242 bucket_type = LPFC_POWER2_BUCKET;
2243 else
2244 return -EINVAL;
2245
2246 base_str = strsep(&str_ptr, "\t ");
2247 if (!base_str)
2248 return -EINVAL;
2249 base = simple_strtoul(base_str, NULL, 0);
2250
2251 step_str = strsep(&str_ptr, "\t ");
2252 if (!step_str)
2253 return -EINVAL;
2254 step = simple_strtoul(step_str, NULL, 0);
2255 if (!step)
2256 return -EINVAL;
2257
2258 /* Block the data collection for every vport */
2259 vports = lpfc_create_vport_work_array(phba);
2260 if (vports == NULL)
2261 return -ENOMEM;
2262
2263 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
2264 v_shost = lpfc_shost_from_vport(vports[i]);
2265 spin_lock_irq(v_shost->host_lock);
2266 /* Block and reset data collection */
2267 vports[i]->stat_data_blocked = 1;
2268 if (vports[i]->stat_data_enabled)
2269 lpfc_vport_reset_stat_data(vports[i]);
2270 spin_unlock_irq(v_shost->host_lock);
2271 }
2272
2273 /* Set the bucket attributes */
2274 phba->bucket_type = bucket_type;
2275 phba->bucket_base = base;
2276 phba->bucket_step = step;
2277
2278 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
2279 v_shost = lpfc_shost_from_vport(vports[i]);
2280
2281 /* Unblock data collection */
2282 spin_lock_irq(v_shost->host_lock);
2283 vports[i]->stat_data_blocked = 0;
2284 spin_unlock_irq(v_shost->host_lock);
2285 }
2286 lpfc_destroy_vport_work_array(phba, vports);
2287 return strlen(buf);
2288 }
2289
2290 if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
2291 vports = lpfc_create_vport_work_array(phba);
2292 if (vports == NULL)
2293 return -ENOMEM;
2294
2295 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
2296 v_shost = lpfc_shost_from_vport(vports[i]);
2297 spin_lock_irq(shost->host_lock);
2298 vports[i]->stat_data_blocked = 1;
2299 lpfc_free_bucket(vport);
2300 vport->stat_data_enabled = 0;
2301 vports[i]->stat_data_blocked = 0;
2302 spin_unlock_irq(shost->host_lock);
2303 }
2304 lpfc_destroy_vport_work_array(phba, vports);
2305 phba->bucket_type = LPFC_NO_BUCKET;
2306 phba->bucket_base = 0;
2307 phba->bucket_step = 0;
2308 return strlen(buf);
2309 }
2310
2311 if (!strncmp(buf, "start", strlen("start"))) {
2312 /* If no buckets configured return error */
2313 if (phba->bucket_type == LPFC_NO_BUCKET)
2314 return -EINVAL;
2315 spin_lock_irq(shost->host_lock);
2316 if (vport->stat_data_enabled) {
2317 spin_unlock_irq(shost->host_lock);
2318 return strlen(buf);
2319 }
2320 lpfc_alloc_bucket(vport);
2321 vport->stat_data_enabled = 1;
2322 spin_unlock_irq(shost->host_lock);
2323 return strlen(buf);
2324 }
2325
2326 if (!strncmp(buf, "stop", strlen("stop"))) {
2327 spin_lock_irq(shost->host_lock);
2328 if (vport->stat_data_enabled == 0) {
2329 spin_unlock_irq(shost->host_lock);
2330 return strlen(buf);
2331 }
2332 lpfc_free_bucket(vport);
2333 vport->stat_data_enabled = 0;
2334 spin_unlock_irq(shost->host_lock);
2335 return strlen(buf);
2336 }
2337
2338 if (!strncmp(buf, "reset", strlen("reset"))) {
2339 if ((phba->bucket_type == LPFC_NO_BUCKET)
2340 || !vport->stat_data_enabled)
2341 return strlen(buf);
2342 spin_lock_irq(shost->host_lock);
2343 vport->stat_data_blocked = 1;
2344 lpfc_vport_reset_stat_data(vport);
2345 vport->stat_data_blocked = 0;
2346 spin_unlock_irq(shost->host_lock);
2347 return strlen(buf);
2348 }
2349 return -EINVAL;
2350}
2351
2352
2353/**
2354 * lpfc_stat_data_ctrl_show: Read callback function for
2355 * lpfc_stat_data_ctrl sysfs file.
2356 * @dev: Pointer to class device object.
2357 * @buf: Data buffer.
2358 *
2359 * This function is the read call back function for
2360 * lpfc_stat_data_ctrl sysfs file. This function report the
2361 * current statistical data collection state.
2362 **/
2363static ssize_t
2364lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
2365 char *buf)
2366{
2367 struct Scsi_Host *shost = class_to_shost(dev);
2368 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2369 struct lpfc_hba *phba = vport->phba;
2370 int index = 0;
2371 int i;
2372 char *bucket_type;
2373 unsigned long bucket_value;
2374
2375 switch (phba->bucket_type) {
2376 case LPFC_LINEAR_BUCKET:
2377 bucket_type = "linear";
2378 break;
2379 case LPFC_POWER2_BUCKET:
2380 bucket_type = "power2";
2381 break;
2382 default:
2383 bucket_type = "No Bucket";
2384 break;
2385 }
2386
2387 sprintf(&buf[index], "Statistical Data enabled :%d, "
2388 "blocked :%d, Bucket type :%s, Bucket base :%d,"
2389 " Bucket step :%d\nLatency Ranges :",
2390 vport->stat_data_enabled, vport->stat_data_blocked,
2391 bucket_type, phba->bucket_base, phba->bucket_step);
2392 index = strlen(buf);
2393 if (phba->bucket_type != LPFC_NO_BUCKET) {
2394 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
2395 if (phba->bucket_type == LPFC_LINEAR_BUCKET)
2396 bucket_value = phba->bucket_base +
2397 phba->bucket_step * i;
2398 else
2399 bucket_value = phba->bucket_base +
2400 (1 << i) * phba->bucket_step;
2401
2402 if (index + 10 > PAGE_SIZE)
2403 break;
2404 sprintf(&buf[index], "%08ld ", bucket_value);
2405 index = strlen(buf);
2406 }
2407 }
2408 sprintf(&buf[index], "\n");
2409 return strlen(buf);
2410}
2411
2412/*
2413 * Sysfs attribute to control the statistical data collection.
2414 */
2415static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR,
2416 lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store);
2417
2418/*
2419 * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
2420 */
2421
2422/*
2423 * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
2424 * for each target.
2425 */
2426#define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
2427#define MAX_STAT_DATA_SIZE_PER_TARGET \
2428 STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
2429
2430
2431/**
2432 * sysfs_drvr_stat_data_read: Read callback function for lpfc_drvr_stat_data
2433 * sysfs attribute.
2434 * @kobj: Pointer to the kernel object
2435 * @bin_attr: Attribute object
2436 * @buff: Buffer pointer
2437 * @off: File offset
2438 * @count: Buffer size
2439 *
2440 * This function is the read call back function for lpfc_drvr_stat_data
2441 * sysfs file. This function export the statistical data to user
2442 * applications.
2443 **/
2444static ssize_t
2445sysfs_drvr_stat_data_read(struct kobject *kobj, struct bin_attribute *bin_attr,
2446 char *buf, loff_t off, size_t count)
2447{
2448 struct device *dev = container_of(kobj, struct device,
2449 kobj);
2450 struct Scsi_Host *shost = class_to_shost(dev);
2451 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2452 struct lpfc_hba *phba = vport->phba;
2453 int i = 0, index = 0;
2454 unsigned long nport_index;
2455 struct lpfc_nodelist *ndlp = NULL;
2456 nport_index = (unsigned long)off /
2457 MAX_STAT_DATA_SIZE_PER_TARGET;
2458
2459 if (!vport->stat_data_enabled || vport->stat_data_blocked
2460 || (phba->bucket_type == LPFC_NO_BUCKET))
2461 return 0;
2462
2463 spin_lock_irq(shost->host_lock);
2464 list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
2465 if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
2466 continue;
2467
2468 if (nport_index > 0) {
2469 nport_index--;
2470 continue;
2471 }
2472
2473 if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
2474 > count)
2475 break;
2476
2477 if (!ndlp->lat_data)
2478 continue;
2479
2480 /* Print the WWN */
2481 sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
2482 ndlp->nlp_portname.u.wwn[0],
2483 ndlp->nlp_portname.u.wwn[1],
2484 ndlp->nlp_portname.u.wwn[2],
2485 ndlp->nlp_portname.u.wwn[3],
2486 ndlp->nlp_portname.u.wwn[4],
2487 ndlp->nlp_portname.u.wwn[5],
2488 ndlp->nlp_portname.u.wwn[6],
2489 ndlp->nlp_portname.u.wwn[7]);
2490
2491 index = strlen(buf);
2492
2493 for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
2494 sprintf(&buf[index], "%010u,",
2495 ndlp->lat_data[i].cmd_count);
2496 index = strlen(buf);
2497 }
2498 sprintf(&buf[index], "\n");
2499 index = strlen(buf);
2500 }
2501 spin_unlock_irq(shost->host_lock);
2502 return index;
2503}
2504
2505static struct bin_attribute sysfs_drvr_stat_data_attr = {
2506 .attr = {
2507 .name = "lpfc_drvr_stat_data",
2508 .mode = S_IRUSR,
2509 .owner = THIS_MODULE,
2510 },
2511 .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
2512 .read = sysfs_drvr_stat_data_read,
2513 .write = NULL,
2514};
2515
1472/* 2516/*
1473# lpfc_link_speed: Link speed selection for initializing the Fibre Channel 2517# lpfc_link_speed: Link speed selection for initializing the Fibre Channel
1474# connection. 2518# connection.
@@ -1479,6 +2523,24 @@ static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
1479# 8 = 8 Gigabaud 2523# 8 = 8 Gigabaud
1480# Value range is [0,8]. Default value is 0. 2524# Value range is [0,8]. Default value is 0.
1481*/ 2525*/
2526
2527/**
2528 * lpfc_link_speed_set: Set the adapters link speed.
2529 * @phba: lpfc_hba pointer.
2530 * @val: link speed value.
2531 *
2532 * Description:
2533 * If val is in a valid range then set the adapter's link speed field and
2534 * issue a lip; if the lip fails reset the link speed to the old value.
2535 *
2536 * Notes:
2537 * If the value is not in range log a kernel error message and return an error.
2538 *
2539 * Returns:
2540 * zero if val is in range and lip okay.
2541 * non-zero return value from lpfc_issue_lip()
2542 * -EINVAL val out of range
2543 **/
1482static int 2544static int
1483lpfc_link_speed_set(struct lpfc_hba *phba, int val) 2545lpfc_link_speed_set(struct lpfc_hba *phba, int val)
1484{ 2546{
@@ -1513,6 +2575,23 @@ static int lpfc_link_speed = 0;
1513module_param(lpfc_link_speed, int, 0); 2575module_param(lpfc_link_speed, int, 0);
1514MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); 2576MODULE_PARM_DESC(lpfc_link_speed, "Select link speed");
1515lpfc_param_show(link_speed) 2577lpfc_param_show(link_speed)
2578
2579/**
2580 * lpfc_link_speed_init: Set the adapters link speed.
2581 * @phba: lpfc_hba pointer.
2582 * @val: link speed value.
2583 *
2584 * Description:
2585 * If val is in a valid range then set the adapter's link speed field.
2586 *
2587 * Notes:
2588 * If the value is not in range log a kernel error message, clear the link
2589 * speed and return an error.
2590 *
2591 * Returns:
2592 * zero if val saved.
2593 * -EINVAL val out of range
2594 **/
1516static int 2595static int
1517lpfc_link_speed_init(struct lpfc_hba *phba, int val) 2596lpfc_link_speed_init(struct lpfc_hba *phba, int val)
1518{ 2597{
@@ -1522,7 +2601,7 @@ lpfc_link_speed_init(struct lpfc_hba *phba, int val)
1522 return 0; 2601 return 0;
1523 } 2602 }
1524 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1525 "0454 lpfc_link_speed attribute cannot " 2604 "0405 lpfc_link_speed attribute cannot "
1526 "be set to %d, allowed values are " 2605 "be set to %d, allowed values are "
1527 "["LPFC_LINK_SPEED_STRING"]\n", val); 2606 "["LPFC_LINK_SPEED_STRING"]\n", val);
1528 phba->cfg_link_speed = 0; 2607 phba->cfg_link_speed = 0;
@@ -1548,6 +2627,48 @@ LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1,
1548 "Use ADISC on rediscovery to authenticate FCP devices"); 2627 "Use ADISC on rediscovery to authenticate FCP devices");
1549 2628
1550/* 2629/*
2630# lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue
2631# depth. Default value is 0. When the value of this parameter is zero the
2632# SCSI command completion time is not used for controlling I/O queue depth. When
2633# the parameter is set to a non-zero value, the I/O queue depth is controlled
2634# to limit the I/O completion time to the parameter value.
2635# The value is set in milliseconds.
2636*/
2637static int lpfc_max_scsicmpl_time;
2638module_param(lpfc_max_scsicmpl_time, int, 0);
2639MODULE_PARM_DESC(lpfc_max_scsicmpl_time,
2640 "Use command completion time to control queue depth");
2641lpfc_vport_param_show(max_scsicmpl_time);
2642lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000);
2643static int
2644lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val)
2645{
2646 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2647 struct lpfc_nodelist *ndlp, *next_ndlp;
2648
2649 if (val == vport->cfg_max_scsicmpl_time)
2650 return 0;
2651 if ((val < 0) || (val > 60000))
2652 return -EINVAL;
2653 vport->cfg_max_scsicmpl_time = val;
2654
2655 spin_lock_irq(shost->host_lock);
2656 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2657 if (!NLP_CHK_NODE_ACT(ndlp))
2658 continue;
2659 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2660 continue;
2661 ndlp->cmd_qdepth = LPFC_MAX_TGT_QDEPTH;
2662 }
2663 spin_unlock_irq(shost->host_lock);
2664 return 0;
2665}
2666lpfc_vport_param_store(max_scsicmpl_time);
2667static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR,
2668 lpfc_max_scsicmpl_time_show,
2669 lpfc_max_scsicmpl_time_store);
2670
2671/*
1551# lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value 2672# lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value
1552# range is [0,1]. Default value is 0. 2673# range is [0,1]. Default value is 0.
1553*/ 2674*/
@@ -1623,12 +2744,12 @@ LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
1623/* 2744/*
1624# lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that 2745# lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
1625# support this feature 2746# support this feature
1626# 0 = MSI disabled (default) 2747# 0 = MSI disabled
1627# 1 = MSI enabled 2748# 1 = MSI enabled
1628# 2 = MSI-X enabled 2749# 2 = MSI-X enabled (default)
1629# Value range is [0,2]. Default value is 0. 2750# Value range is [0,2]. Default value is 2.
1630*/ 2751*/
1631LPFC_ATTR_R(use_msi, 0, 0, 2, "Use Message Signaled Interrupts (1) or " 2752LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or "
1632 "MSI-X (2), if possible"); 2753 "MSI-X (2), if possible");
1633 2754
1634/* 2755/*
@@ -1668,6 +2789,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
1668 &dev_attr_option_rom_version, 2789 &dev_attr_option_rom_version,
1669 &dev_attr_link_state, 2790 &dev_attr_link_state,
1670 &dev_attr_num_discovered_ports, 2791 &dev_attr_num_discovered_ports,
2792 &dev_attr_menlo_mgmt_mode,
1671 &dev_attr_lpfc_drvr_version, 2793 &dev_attr_lpfc_drvr_version,
1672 &dev_attr_lpfc_temp_sensor, 2794 &dev_attr_lpfc_temp_sensor,
1673 &dev_attr_lpfc_log_verbose, 2795 &dev_attr_lpfc_log_verbose,
@@ -1709,6 +2831,8 @@ struct device_attribute *lpfc_hba_attrs[] = {
1709 &dev_attr_lpfc_enable_hba_reset, 2831 &dev_attr_lpfc_enable_hba_reset,
1710 &dev_attr_lpfc_enable_hba_heartbeat, 2832 &dev_attr_lpfc_enable_hba_heartbeat,
1711 &dev_attr_lpfc_sg_seg_cnt, 2833 &dev_attr_lpfc_sg_seg_cnt,
2834 &dev_attr_lpfc_max_scsicmpl_time,
2835 &dev_attr_lpfc_stat_data_ctrl,
1712 NULL, 2836 NULL,
1713}; 2837};
1714 2838
@@ -1731,9 +2855,29 @@ struct device_attribute *lpfc_vport_attrs[] = {
1731 &dev_attr_nport_evt_cnt, 2855 &dev_attr_nport_evt_cnt,
1732 &dev_attr_npiv_info, 2856 &dev_attr_npiv_info,
1733 &dev_attr_lpfc_enable_da_id, 2857 &dev_attr_lpfc_enable_da_id,
2858 &dev_attr_lpfc_max_scsicmpl_time,
2859 &dev_attr_lpfc_stat_data_ctrl,
1734 NULL, 2860 NULL,
1735}; 2861};
1736 2862
2863/**
2864 * sysfs_ctlreg_write: Write method for writing to ctlreg.
2865 * @kobj: kernel kobject that contains the kernel class device.
2866 * @bin_attr: kernel attributes passed to us.
2867 * @buf: contains the data to be written to the adapter IOREG space.
2868 * @off: offset into buffer to beginning of data.
2869 * @count: bytes to transfer.
2870 *
2871 * Description:
2872 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
2873 * Uses the adapter io control registers to send buf contents to the adapter.
2874 *
2875 * Returns:
2876 * -ERANGE off and count combo out of range
2877 * -EINVAL off, count or buff address invalid
2878 * -EPERM adapter is offline
2879 * value of count, buf contents written
2880 **/
1737static ssize_t 2881static ssize_t
1738sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr, 2882sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1739 char *buf, loff_t off, size_t count) 2883 char *buf, loff_t off, size_t count)
@@ -1766,6 +2910,23 @@ sysfs_ctlreg_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1766 return count; 2910 return count;
1767} 2911}
1768 2912
2913/**
2914 * sysfs_ctlreg_read: Read method for reading from ctlreg.
2915 * @kobj: kernel kobject that contains the kernel class device.
2916 * @bin_attr: kernel attributes passed to us.
2917 * @buf: if succesful contains the data from the adapter IOREG space.
2918 * @off: offset into buffer to beginning of data.
2919 * @count: bytes to transfer.
2920 *
2921 * Description:
2922 * Accessed via /sys/class/scsi_host/hostxxx/ctlreg.
2923 * Uses the adapter io control registers to read data into buf.
2924 *
2925 * Returns:
2926 * -ERANGE off and count combo out of range
2927 * -EINVAL off, count or buff address invalid
2928 * value of count, buf contents read
2929 **/
1769static ssize_t 2930static ssize_t
1770sysfs_ctlreg_read(struct kobject *kobj, struct bin_attribute *bin_attr, 2931sysfs_ctlreg_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1771 char *buf, loff_t off, size_t count) 2932 char *buf, loff_t off, size_t count)
@@ -1810,7 +2971,10 @@ static struct bin_attribute sysfs_ctlreg_attr = {
1810 .write = sysfs_ctlreg_write, 2971 .write = sysfs_ctlreg_write,
1811}; 2972};
1812 2973
1813 2974/**
2975 * sysfs_mbox_idle: frees the sysfs mailbox.
2976 * @phba: lpfc_hba pointer
2977 **/
1814static void 2978static void
1815sysfs_mbox_idle(struct lpfc_hba *phba) 2979sysfs_mbox_idle(struct lpfc_hba *phba)
1816{ 2980{
@@ -1824,6 +2988,27 @@ sysfs_mbox_idle(struct lpfc_hba *phba)
1824 } 2988 }
1825} 2989}
1826 2990
2991/**
2992 * sysfs_mbox_write: Write method for writing information via mbox.
2993 * @kobj: kernel kobject that contains the kernel class device.
2994 * @bin_attr: kernel attributes passed to us.
2995 * @buf: contains the data to be written to sysfs mbox.
2996 * @off: offset into buffer to beginning of data.
2997 * @count: bytes to transfer.
2998 *
2999 * Description:
3000 * Accessed via /sys/class/scsi_host/hostxxx/mbox.
3001 * Uses the sysfs mbox to send buf contents to the adapter.
3002 *
3003 * Returns:
3004 * -ERANGE off and count combo out of range
3005 * -EINVAL off, count or buff address invalid
3006 * zero if count is zero
3007 * -EPERM adapter is offline
3008 * -ENOMEM failed to allocate memory for the mail box
3009 * -EAGAIN offset, state or mbox is NULL
3010 * count number of bytes transferred
3011 **/
1827static ssize_t 3012static ssize_t
1828sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr, 3013sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1829 char *buf, loff_t off, size_t count) 3014 char *buf, loff_t off, size_t count)
@@ -1878,6 +3063,29 @@ sysfs_mbox_write(struct kobject *kobj, struct bin_attribute *bin_attr,
1878 return count; 3063 return count;
1879} 3064}
1880 3065
3066/**
3067 * sysfs_mbox_read: Read method for reading information via mbox.
3068 * @kobj: kernel kobject that contains the kernel class device.
3069 * @bin_attr: kernel attributes passed to us.
3070 * @buf: contains the data to be read from sysfs mbox.
3071 * @off: offset into buffer to beginning of data.
3072 * @count: bytes to transfer.
3073 *
3074 * Description:
3075 * Accessed via /sys/class/scsi_host/hostxxx/mbox.
3076 * Uses the sysfs mbox to receive data from to the adapter.
3077 *
3078 * Returns:
3079 * -ERANGE off greater than mailbox command size
3080 * -EINVAL off, count or buff address invalid
3081 * zero if off and count are zero
3082 * -EACCES adapter over temp
3083 * -EPERM garbage can value to catch a multitude of errors
3084 * -EAGAIN management IO not permitted, state or off error
3085 * -ETIME mailbox timeout
3086 * -ENODEV mailbox error
3087 * count number of bytes transferred
3088 **/
1881static ssize_t 3089static ssize_t
1882sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr, 3090sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1883 char *buf, loff_t off, size_t count) 3091 char *buf, loff_t off, size_t count)
@@ -1954,6 +3162,8 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1954 case MBX_DEL_LD_ENTRY: 3162 case MBX_DEL_LD_ENTRY:
1955 case MBX_SET_VARIABLE: 3163 case MBX_SET_VARIABLE:
1956 case MBX_WRITE_WWN: 3164 case MBX_WRITE_WWN:
3165 case MBX_PORT_CAPABILITIES:
3166 case MBX_PORT_IOV_CONTROL:
1957 break; 3167 break;
1958 case MBX_READ_SPARM64: 3168 case MBX_READ_SPARM64:
1959 case MBX_READ_LA: 3169 case MBX_READ_LA:
@@ -1978,17 +3188,15 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
1978 /* If HBA encountered an error attention, allow only DUMP 3188 /* If HBA encountered an error attention, allow only DUMP
1979 * or RESTART mailbox commands until the HBA is restarted. 3189 * or RESTART mailbox commands until the HBA is restarted.
1980 */ 3190 */
1981 if ((phba->pport->stopped) && 3191 if (phba->pport->stopped &&
1982 (phba->sysfs_mbox.mbox->mb.mbxCommand != 3192 phba->sysfs_mbox.mbox->mb.mbxCommand != MBX_DUMP_MEMORY &&
1983 MBX_DUMP_MEMORY && 3193 phba->sysfs_mbox.mbox->mb.mbxCommand != MBX_RESTART &&
1984 phba->sysfs_mbox.mbox->mb.mbxCommand != 3194 phba->sysfs_mbox.mbox->mb.mbxCommand != MBX_WRITE_VPARMS &&
1985 MBX_RESTART && 3195 phba->sysfs_mbox.mbox->mb.mbxCommand != MBX_WRITE_WWN)
1986 phba->sysfs_mbox.mbox->mb.mbxCommand != 3196 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
1987 MBX_WRITE_VPARMS)) { 3197 "1259 mbox: Issued mailbox cmd "
1988 sysfs_mbox_idle(phba); 3198 "0x%x while in stopped state.\n",
1989 spin_unlock_irq(&phba->hbalock); 3199 phba->sysfs_mbox.mbox->mb.mbxCommand);
1990 return -EPERM;
1991 }
1992 3200
1993 phba->sysfs_mbox.mbox->vport = vport; 3201 phba->sysfs_mbox.mbox->vport = vport;
1994 3202
@@ -2059,6 +3267,14 @@ static struct bin_attribute sysfs_mbox_attr = {
2059 .write = sysfs_mbox_write, 3267 .write = sysfs_mbox_write,
2060}; 3268};
2061 3269
3270/**
3271 * lpfc_alloc_sysfs_attr: Creates the ctlreg and mbox entries.
3272 * @vport: address of lpfc vport structure.
3273 *
3274 * Return codes:
3275 * zero on success
3276 * error return code from sysfs_create_bin_file()
3277 **/
2062int 3278int
2063lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) 3279lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
2064{ 3280{
@@ -2075,18 +3291,30 @@ lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
2075 if (error) 3291 if (error)
2076 goto out_remove_ctlreg_attr; 3292 goto out_remove_ctlreg_attr;
2077 3293
3294 error = sysfs_create_bin_file(&shost->shost_dev.kobj,
3295 &sysfs_drvr_stat_data_attr);
3296 if (error)
3297 goto out_remove_mbox_attr;
3298
2078 return 0; 3299 return 0;
3300out_remove_mbox_attr:
3301 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
2079out_remove_ctlreg_attr: 3302out_remove_ctlreg_attr:
2080 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 3303 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
2081out: 3304out:
2082 return error; 3305 return error;
2083} 3306}
2084 3307
3308/**
3309 * lpfc_free_sysfs_attr: Removes the ctlreg and mbox entries.
3310 * @vport: address of lpfc vport structure.
3311 **/
2085void 3312void
2086lpfc_free_sysfs_attr(struct lpfc_vport *vport) 3313lpfc_free_sysfs_attr(struct lpfc_vport *vport)
2087{ 3314{
2088 struct Scsi_Host *shost = lpfc_shost_from_vport(vport); 3315 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2089 3316 sysfs_remove_bin_file(&shost->shost_dev.kobj,
3317 &sysfs_drvr_stat_data_attr);
2090 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); 3318 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
2091 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); 3319 sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
2092} 3320}
@@ -2096,6 +3324,10 @@ lpfc_free_sysfs_attr(struct lpfc_vport *vport)
2096 * Dynamic FC Host Attributes Support 3324 * Dynamic FC Host Attributes Support
2097 */ 3325 */
2098 3326
3327/**
3328 * lpfc_get_host_port_id: Copy the vport DID into the scsi host port id.
3329 * @shost: kernel scsi host pointer.
3330 **/
2099static void 3331static void
2100lpfc_get_host_port_id(struct Scsi_Host *shost) 3332lpfc_get_host_port_id(struct Scsi_Host *shost)
2101{ 3333{
@@ -2105,6 +3337,10 @@ lpfc_get_host_port_id(struct Scsi_Host *shost)
2105 fc_host_port_id(shost) = vport->fc_myDID; 3337 fc_host_port_id(shost) = vport->fc_myDID;
2106} 3338}
2107 3339
3340/**
3341 * lpfc_get_host_port_type: Set the value of the scsi host port type.
3342 * @shost: kernel scsi host pointer.
3343 **/
2108static void 3344static void
2109lpfc_get_host_port_type(struct Scsi_Host *shost) 3345lpfc_get_host_port_type(struct Scsi_Host *shost)
2110{ 3346{
@@ -2133,6 +3369,10 @@ lpfc_get_host_port_type(struct Scsi_Host *shost)
2133 spin_unlock_irq(shost->host_lock); 3369 spin_unlock_irq(shost->host_lock);
2134} 3370}
2135 3371
3372/**
3373 * lpfc_get_host_port_state: Set the value of the scsi host port state.
3374 * @shost: kernel scsi host pointer.
3375 **/
2136static void 3376static void
2137lpfc_get_host_port_state(struct Scsi_Host *shost) 3377lpfc_get_host_port_state(struct Scsi_Host *shost)
2138{ 3378{
@@ -2167,6 +3407,10 @@ lpfc_get_host_port_state(struct Scsi_Host *shost)
2167 spin_unlock_irq(shost->host_lock); 3407 spin_unlock_irq(shost->host_lock);
2168} 3408}
2169 3409
3410/**
3411 * lpfc_get_host_speed: Set the value of the scsi host speed.
3412 * @shost: kernel scsi host pointer.
3413 **/
2170static void 3414static void
2171lpfc_get_host_speed(struct Scsi_Host *shost) 3415lpfc_get_host_speed(struct Scsi_Host *shost)
2172{ 3416{
@@ -2199,6 +3443,10 @@ lpfc_get_host_speed(struct Scsi_Host *shost)
2199 spin_unlock_irq(shost->host_lock); 3443 spin_unlock_irq(shost->host_lock);
2200} 3444}
2201 3445
3446/**
3447 * lpfc_get_host_fabric_name: Set the value of the scsi host fabric name.
3448 * @shost: kernel scsi host pointer.
3449 **/
2202static void 3450static void
2203lpfc_get_host_fabric_name (struct Scsi_Host *shost) 3451lpfc_get_host_fabric_name (struct Scsi_Host *shost)
2204{ 3452{
@@ -2221,6 +3469,18 @@ lpfc_get_host_fabric_name (struct Scsi_Host *shost)
2221 fc_host_fabric_name(shost) = node_name; 3469 fc_host_fabric_name(shost) = node_name;
2222} 3470}
2223 3471
3472/**
3473 * lpfc_get_stats: Return statistical information about the adapter.
3474 * @shost: kernel scsi host pointer.
3475 *
3476 * Notes:
3477 * NULL on error for link down, no mbox pool, sli2 active,
3478 * management not allowed, memory allocation error, or mbox error.
3479 *
3480 * Returns:
3481 * NULL for error
3482 * address of the adapter host statistics
3483 **/
2224static struct fc_host_statistics * 3484static struct fc_host_statistics *
2225lpfc_get_stats(struct Scsi_Host *shost) 3485lpfc_get_stats(struct Scsi_Host *shost)
2226{ 3486{
@@ -2334,6 +3594,10 @@ lpfc_get_stats(struct Scsi_Host *shost)
2334 return hs; 3594 return hs;
2335} 3595}
2336 3596
3597/**
3598 * lpfc_reset_stats: Copy the adapter link stats information.
3599 * @shost: kernel scsi host pointer.
3600 **/
2337static void 3601static void
2338lpfc_reset_stats(struct Scsi_Host *shost) 3602lpfc_reset_stats(struct Scsi_Host *shost)
2339{ 3603{
@@ -2411,6 +3675,14 @@ lpfc_reset_stats(struct Scsi_Host *shost)
2411 * are no sysfs handlers for link_down_tmo. 3675 * are no sysfs handlers for link_down_tmo.
2412 */ 3676 */
2413 3677
3678/**
3679 * lpfc_get_node_by_target: Return the nodelist for a target.
3680 * @starget: kernel scsi target pointer.
3681 *
3682 * Returns:
3683 * address of the node list if found
3684 * NULL target not found
3685 **/
2414static struct lpfc_nodelist * 3686static struct lpfc_nodelist *
2415lpfc_get_node_by_target(struct scsi_target *starget) 3687lpfc_get_node_by_target(struct scsi_target *starget)
2416{ 3688{
@@ -2432,6 +3704,10 @@ lpfc_get_node_by_target(struct scsi_target *starget)
2432 return NULL; 3704 return NULL;
2433} 3705}
2434 3706
3707/**
3708 * lpfc_get_starget_port_id: Set the target port id to the ndlp DID or -1.
3709 * @starget: kernel scsi target pointer.
3710 **/
2435static void 3711static void
2436lpfc_get_starget_port_id(struct scsi_target *starget) 3712lpfc_get_starget_port_id(struct scsi_target *starget)
2437{ 3713{
@@ -2440,6 +3716,12 @@ lpfc_get_starget_port_id(struct scsi_target *starget)
2440 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; 3716 fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1;
2441} 3717}
2442 3718
3719/**
3720 * lpfc_get_starget_node_name: Set the target node name.
3721 * @starget: kernel scsi target pointer.
3722 *
3723 * Description: Set the target node name to the ndlp node name wwn or zero.
3724 **/
2443static void 3725static void
2444lpfc_get_starget_node_name(struct scsi_target *starget) 3726lpfc_get_starget_node_name(struct scsi_target *starget)
2445{ 3727{
@@ -2449,6 +3731,12 @@ lpfc_get_starget_node_name(struct scsi_target *starget)
2449 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; 3731 ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0;
2450} 3732}
2451 3733
3734/**
3735 * lpfc_get_starget_port_name: Set the target port name.
3736 * @starget: kernel scsi target pointer.
3737 *
3738 * Description: set the target port name to the ndlp port name wwn or zero.
3739 **/
2452static void 3740static void
2453lpfc_get_starget_port_name(struct scsi_target *starget) 3741lpfc_get_starget_port_name(struct scsi_target *starget)
2454{ 3742{
@@ -2458,6 +3746,15 @@ lpfc_get_starget_port_name(struct scsi_target *starget)
2458 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; 3746 ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0;
2459} 3747}
2460 3748
3749/**
3750 * lpfc_set_rport_loss_tmo: Set the rport dev loss tmo.
3751 * @rport: fc rport address.
3752 * @timeout: new value for dev loss tmo.
3753 *
3754 * Description:
3755 * If timeout is non zero set the dev_loss_tmo to timeout, else set
3756 * dev_loss_tmo to one.
3757 **/
2461static void 3758static void
2462lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 3759lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
2463{ 3760{
@@ -2467,7 +3764,18 @@ lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
2467 rport->dev_loss_tmo = 1; 3764 rport->dev_loss_tmo = 1;
2468} 3765}
2469 3766
2470 3767/**
3768 * lpfc_rport_show_function: Return rport target information.
3769 *
3770 * Description:
3771 * Macro that uses field to generate a function with the name lpfc_show_rport_
3772 *
3773 * lpfc_show_rport_##field: returns the bytes formatted in buf
3774 * @cdev: class converted to an fc_rport.
3775 * @buf: on return contains the target_field or zero.
3776 *
3777 * Returns: size of formatted string.
3778 **/
2471#define lpfc_rport_show_function(field, format_string, sz, cast) \ 3779#define lpfc_rport_show_function(field, format_string, sz, cast) \
2472static ssize_t \ 3780static ssize_t \
2473lpfc_show_rport_##field (struct device *dev, \ 3781lpfc_show_rport_##field (struct device *dev, \
@@ -2602,6 +3910,10 @@ struct fc_function_template lpfc_vport_transport_functions = {
2602 .vport_disable = lpfc_vport_disable, 3910 .vport_disable = lpfc_vport_disable,
2603}; 3911};
2604 3912
3913/**
3914 * lpfc_get_cfgparam: Used during probe_one to init the adapter structure.
3915 * @phba: lpfc_hba pointer.
3916 **/
2605void 3917void
2606lpfc_get_cfgparam(struct lpfc_hba *phba) 3918lpfc_get_cfgparam(struct lpfc_hba *phba)
2607{ 3919{
@@ -2637,6 +3949,10 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
2637 return; 3949 return;
2638} 3950}
2639 3951
3952/**
3953 * lpfc_get_vport_cfgparam: Used during port create, init the vport structure.
3954 * @vport: lpfc_vport pointer.
3955 **/
2640void 3956void
2641lpfc_get_vport_cfgparam(struct lpfc_vport *vport) 3957lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
2642{ 3958{
@@ -2648,6 +3964,7 @@ lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
2648 lpfc_restrict_login_init(vport, lpfc_restrict_login); 3964 lpfc_restrict_login_init(vport, lpfc_restrict_login);
2649 lpfc_fcp_class_init(vport, lpfc_fcp_class); 3965 lpfc_fcp_class_init(vport, lpfc_fcp_class);
2650 lpfc_use_adisc_init(vport, lpfc_use_adisc); 3966 lpfc_use_adisc_init(vport, lpfc_use_adisc);
3967 lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time);
2651 lpfc_fdmi_on_init(vport, lpfc_fdmi_on); 3968 lpfc_fdmi_on_init(vport, lpfc_fdmi_on);
2652 lpfc_discovery_threads_init(vport, lpfc_discovery_threads); 3969 lpfc_discovery_threads_init(vport, lpfc_discovery_threads);
2653 lpfc_max_luns_init(vport, lpfc_max_luns); 3970 lpfc_max_luns_init(vport, lpfc_max_luns);
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index 1b8245213b83..044ef4057d28 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -18,7 +18,7 @@
18 * included with this package. * 18 * included with this package. *
19 *******************************************************************/ 19 *******************************************************************/
20 20
21typedef int (*node_filter)(struct lpfc_nodelist *ndlp, void *param); 21typedef int (*node_filter)(struct lpfc_nodelist *, void *);
22 22
23struct fc_rport; 23struct fc_rport;
24void lpfc_dump_mem(struct lpfc_hba *, LPFC_MBOXQ_t *, uint16_t); 24void lpfc_dump_mem(struct lpfc_hba *, LPFC_MBOXQ_t *, uint16_t);
@@ -26,11 +26,11 @@ void lpfc_read_nv(struct lpfc_hba *, LPFC_MBOXQ_t *);
26void lpfc_config_async(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t); 26void lpfc_config_async(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
27 27
28void lpfc_heart_beat(struct lpfc_hba *, LPFC_MBOXQ_t *); 28void lpfc_heart_beat(struct lpfc_hba *, LPFC_MBOXQ_t *);
29int lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, 29int lpfc_read_la(struct lpfc_hba *, LPFC_MBOXQ_t *, struct lpfc_dmabuf *);
30 struct lpfc_dmabuf *mp);
31void lpfc_clear_la(struct lpfc_hba *, LPFC_MBOXQ_t *); 30void lpfc_clear_la(struct lpfc_hba *, LPFC_MBOXQ_t *);
32void lpfc_issue_clear_la(struct lpfc_hba *phba, struct lpfc_vport *vport); 31void lpfc_issue_clear_la(struct lpfc_hba *, struct lpfc_vport *);
33void lpfc_config_link(struct lpfc_hba *, LPFC_MBOXQ_t *); 32void lpfc_config_link(struct lpfc_hba *, LPFC_MBOXQ_t *);
33int lpfc_config_msi(struct lpfc_hba *, LPFC_MBOXQ_t *);
34int lpfc_read_sparam(struct lpfc_hba *, LPFC_MBOXQ_t *, int); 34int lpfc_read_sparam(struct lpfc_hba *, LPFC_MBOXQ_t *, int);
35void lpfc_read_config(struct lpfc_hba *, LPFC_MBOXQ_t *); 35void lpfc_read_config(struct lpfc_hba *, LPFC_MBOXQ_t *);
36void lpfc_read_lnk_stat(struct lpfc_hba *, LPFC_MBOXQ_t *); 36void lpfc_read_lnk_stat(struct lpfc_hba *, LPFC_MBOXQ_t *);
@@ -43,7 +43,7 @@ void lpfc_unreg_vpi(struct lpfc_hba *, uint16_t, LPFC_MBOXQ_t *);
43void lpfc_init_link(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t, uint32_t); 43void lpfc_init_link(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t, uint32_t);
44 44
45struct lpfc_vport *lpfc_find_vport_by_did(struct lpfc_hba *, uint32_t); 45struct lpfc_vport *lpfc_find_vport_by_did(struct lpfc_hba *, uint32_t);
46void lpfc_cleanup_rpis(struct lpfc_vport *vport, int remove); 46void lpfc_cleanup_rpis(struct lpfc_vport *, int);
47int lpfc_linkdown(struct lpfc_hba *); 47int lpfc_linkdown(struct lpfc_hba *);
48void lpfc_port_link_failure(struct lpfc_vport *); 48void lpfc_port_link_failure(struct lpfc_vport *);
49void lpfc_mbx_cmpl_read_la(struct lpfc_hba *, LPFC_MBOXQ_t *); 49void lpfc_mbx_cmpl_read_la(struct lpfc_hba *, LPFC_MBOXQ_t *);
@@ -135,7 +135,7 @@ void lpfc_ct_unsol_event(struct lpfc_hba *, struct lpfc_sli_ring *,
135int lpfc_ns_cmd(struct lpfc_vport *, int, uint8_t, uint32_t); 135int lpfc_ns_cmd(struct lpfc_vport *, int, uint8_t, uint32_t);
136int lpfc_fdmi_cmd(struct lpfc_vport *, struct lpfc_nodelist *, int); 136int lpfc_fdmi_cmd(struct lpfc_vport *, struct lpfc_nodelist *, int);
137void lpfc_fdmi_tmo(unsigned long); 137void lpfc_fdmi_tmo(unsigned long);
138void lpfc_fdmi_timeout_handler(struct lpfc_vport *vport); 138void lpfc_fdmi_timeout_handler(struct lpfc_vport *);
139 139
140int lpfc_config_port_prep(struct lpfc_hba *); 140int lpfc_config_port_prep(struct lpfc_hba *);
141int lpfc_config_port_post(struct lpfc_hba *); 141int lpfc_config_port_post(struct lpfc_hba *);
@@ -155,6 +155,8 @@ int lpfc_sli_queue_setup(struct lpfc_hba *);
155void lpfc_handle_eratt(struct lpfc_hba *); 155void lpfc_handle_eratt(struct lpfc_hba *);
156void lpfc_handle_latt(struct lpfc_hba *); 156void lpfc_handle_latt(struct lpfc_hba *);
157irqreturn_t lpfc_intr_handler(int, void *); 157irqreturn_t lpfc_intr_handler(int, void *);
158irqreturn_t lpfc_sp_intr_handler(int, void *);
159irqreturn_t lpfc_fp_intr_handler(int, void *);
158 160
159void lpfc_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *); 161void lpfc_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *);
160void lpfc_config_ring(struct lpfc_hba *, int, LPFC_MBOXQ_t *); 162void lpfc_config_ring(struct lpfc_hba *, int, LPFC_MBOXQ_t *);
@@ -175,11 +177,12 @@ void lpfc_mem_free(struct lpfc_hba *);
175void lpfc_stop_vport_timers(struct lpfc_vport *); 177void lpfc_stop_vport_timers(struct lpfc_vport *);
176 178
177void lpfc_poll_timeout(unsigned long ptr); 179void lpfc_poll_timeout(unsigned long ptr);
178void lpfc_poll_start_timer(struct lpfc_hba * phba); 180void lpfc_poll_start_timer(struct lpfc_hba *);
179void lpfc_sli_poll_fcp_ring(struct lpfc_hba * hba); 181void lpfc_poll_eratt(unsigned long);
182void lpfc_sli_poll_fcp_ring(struct lpfc_hba *);
180struct lpfc_iocbq * lpfc_sli_get_iocbq(struct lpfc_hba *); 183struct lpfc_iocbq * lpfc_sli_get_iocbq(struct lpfc_hba *);
181void lpfc_sli_release_iocbq(struct lpfc_hba * phba, struct lpfc_iocbq * iocb); 184void lpfc_sli_release_iocbq(struct lpfc_hba *, struct lpfc_iocbq *);
182uint16_t lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocb); 185uint16_t lpfc_sli_next_iotag(struct lpfc_hba *, struct lpfc_iocbq *);
183 186
184void lpfc_reset_barrier(struct lpfc_hba * phba); 187void lpfc_reset_barrier(struct lpfc_hba * phba);
185int lpfc_sli_brdready(struct lpfc_hba *, uint32_t); 188int lpfc_sli_brdready(struct lpfc_hba *, uint32_t);
@@ -187,11 +190,13 @@ int lpfc_sli_brdkill(struct lpfc_hba *);
187int lpfc_sli_brdreset(struct lpfc_hba *); 190int lpfc_sli_brdreset(struct lpfc_hba *);
188int lpfc_sli_brdrestart(struct lpfc_hba *); 191int lpfc_sli_brdrestart(struct lpfc_hba *);
189int lpfc_sli_hba_setup(struct lpfc_hba *); 192int lpfc_sli_hba_setup(struct lpfc_hba *);
193int lpfc_sli_config_port(struct lpfc_hba *, int);
190int lpfc_sli_host_down(struct lpfc_vport *); 194int lpfc_sli_host_down(struct lpfc_vport *);
191int lpfc_sli_hba_down(struct lpfc_hba *); 195int lpfc_sli_hba_down(struct lpfc_hba *);
192int lpfc_sli_issue_mbox(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t); 196int lpfc_sli_issue_mbox(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
193int lpfc_sli_handle_mb_event(struct lpfc_hba *); 197int lpfc_sli_handle_mb_event(struct lpfc_hba *);
194int lpfc_sli_flush_mbox_queue(struct lpfc_hba *); 198int lpfc_sli_flush_mbox_queue(struct lpfc_hba *);
199int lpfc_sli_check_eratt(struct lpfc_hba *);
195int lpfc_sli_handle_slow_ring_event(struct lpfc_hba *, 200int lpfc_sli_handle_slow_ring_event(struct lpfc_hba *,
196 struct lpfc_sli_ring *, uint32_t); 201 struct lpfc_sli_ring *, uint32_t);
197void lpfc_sli_def_mbox_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *); 202void lpfc_sli_def_mbox_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
@@ -199,6 +204,7 @@ int lpfc_sli_issue_iocb(struct lpfc_hba *, struct lpfc_sli_ring *,
199 struct lpfc_iocbq *, uint32_t); 204 struct lpfc_iocbq *, uint32_t);
200void lpfc_sli_pcimem_bcopy(void *, void *, uint32_t); 205void lpfc_sli_pcimem_bcopy(void *, void *, uint32_t);
201void lpfc_sli_abort_iocb_ring(struct lpfc_hba *, struct lpfc_sli_ring *); 206void lpfc_sli_abort_iocb_ring(struct lpfc_hba *, struct lpfc_sli_ring *);
207void lpfc_sli_flush_fcp_rings(struct lpfc_hba *);
202int lpfc_sli_ringpostbuf_put(struct lpfc_hba *, struct lpfc_sli_ring *, 208int lpfc_sli_ringpostbuf_put(struct lpfc_hba *, struct lpfc_sli_ring *,
203 struct lpfc_dmabuf *); 209 struct lpfc_dmabuf *);
204struct lpfc_dmabuf *lpfc_sli_ringpostbuf_get(struct lpfc_hba *, 210struct lpfc_dmabuf *lpfc_sli_ringpostbuf_get(struct lpfc_hba *,
@@ -226,17 +232,13 @@ struct lpfc_nodelist *lpfc_findnode_did(struct lpfc_vport *, uint32_t);
226struct lpfc_nodelist *lpfc_findnode_wwpn(struct lpfc_vport *, 232struct lpfc_nodelist *lpfc_findnode_wwpn(struct lpfc_vport *,
227 struct lpfc_name *); 233 struct lpfc_name *);
228 234
229int lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq, 235int lpfc_sli_issue_mbox_wait(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
230 uint32_t timeout);
231 236
232int lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba, 237int lpfc_sli_issue_iocb_wait(struct lpfc_hba *, struct lpfc_sli_ring *,
233 struct lpfc_sli_ring * pring, 238 struct lpfc_iocbq *, struct lpfc_iocbq *,
234 struct lpfc_iocbq * piocb, 239 uint32_t);
235 struct lpfc_iocbq * prspiocbq, 240void lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *, struct lpfc_iocbq *,
236 uint32_t timeout); 241 struct lpfc_iocbq *);
237void lpfc_sli_abort_fcp_cmpl(struct lpfc_hba * phba,
238 struct lpfc_iocbq * cmdiocb,
239 struct lpfc_iocbq * rspiocb);
240 242
241void lpfc_sli_free_hbq(struct lpfc_hba *, struct hbq_dmabuf *); 243void lpfc_sli_free_hbq(struct lpfc_hba *, struct hbq_dmabuf *);
242 244
@@ -269,7 +271,7 @@ void lpfc_dev_loss_tmo_callbk(struct fc_rport *rport);
269 271
270struct lpfc_vport *lpfc_create_port(struct lpfc_hba *, int, struct device *); 272struct lpfc_vport *lpfc_create_port(struct lpfc_hba *, int, struct device *);
271int lpfc_vport_disable(struct fc_vport *fc_vport, bool disable); 273int lpfc_vport_disable(struct fc_vport *fc_vport, bool disable);
272void lpfc_mbx_unreg_vpi(struct lpfc_vport *); 274int lpfc_mbx_unreg_vpi(struct lpfc_vport *);
273void destroy_port(struct lpfc_vport *); 275void destroy_port(struct lpfc_vport *);
274int lpfc_get_instance(void); 276int lpfc_get_instance(void);
275void lpfc_host_attrib_init(struct Scsi_Host *); 277void lpfc_host_attrib_init(struct Scsi_Host *);
@@ -290,6 +292,13 @@ void lpfc_unblock_fabric_iocbs(struct lpfc_hba *);
290void lpfc_adjust_queue_depth(struct lpfc_hba *); 292void lpfc_adjust_queue_depth(struct lpfc_hba *);
291void lpfc_ramp_down_queue_handler(struct lpfc_hba *); 293void lpfc_ramp_down_queue_handler(struct lpfc_hba *);
292void lpfc_ramp_up_queue_handler(struct lpfc_hba *); 294void lpfc_ramp_up_queue_handler(struct lpfc_hba *);
295void lpfc_scsi_dev_block(struct lpfc_hba *);
296
297void
298lpfc_send_els_failure_event(struct lpfc_hba *, struct lpfc_iocbq *,
299 struct lpfc_iocbq *);
300struct lpfc_fast_path_event *lpfc_alloc_fast_evt(struct lpfc_hba *);
301void lpfc_free_fast_evt(struct lpfc_hba *, struct lpfc_fast_path_event *);
293 302
294#define ScsiResult(host_code, scsi_code) (((host_code) << 16) | scsi_code) 303#define ScsiResult(host_code, scsi_code) (((host_code) << 16) | scsi_code)
295#define HBA_EVENT_RSCN 5 304#define HBA_EVENT_RSCN 5
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index 7fc74cf5823b..26dae8bae2d1 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -34,6 +34,7 @@
34 34
35#include "lpfc_hw.h" 35#include "lpfc_hw.h"
36#include "lpfc_sli.h" 36#include "lpfc_sli.h"
37#include "lpfc_nl.h"
37#include "lpfc_disc.h" 38#include "lpfc_disc.h"
38#include "lpfc_scsi.h" 39#include "lpfc_scsi.h"
39#include "lpfc.h" 40#include "lpfc.h"
@@ -134,25 +135,24 @@ lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
134 } 135 }
135 list_del(&head); 136 list_del(&head);
136 } else { 137 } else {
137 struct lpfc_iocbq *next; 138 INIT_LIST_HEAD(&head);
138 139 list_add_tail(&head, &piocbq->list);
139 list_for_each_entry_safe(iocbq, next, &piocbq->list, list) { 140 list_for_each_entry(iocbq, &head, list) {
140 icmd = &iocbq->iocb; 141 icmd = &iocbq->iocb;
141 if (icmd->ulpBdeCount == 0) 142 if (icmd->ulpBdeCount == 0)
142 lpfc_ct_unsol_buffer(phba, piocbq, NULL, 0); 143 lpfc_ct_unsol_buffer(phba, iocbq, NULL, 0);
143 for (i = 0; i < icmd->ulpBdeCount; i++) { 144 for (i = 0; i < icmd->ulpBdeCount; i++) {
144 paddr = getPaddr(icmd->un.cont64[i].addrHigh, 145 paddr = getPaddr(icmd->un.cont64[i].addrHigh,
145 icmd->un.cont64[i].addrLow); 146 icmd->un.cont64[i].addrLow);
146 mp = lpfc_sli_ringpostbuf_get(phba, pring, 147 mp = lpfc_sli_ringpostbuf_get(phba, pring,
147 paddr); 148 paddr);
148 size = icmd->un.cont64[i].tus.f.bdeSize; 149 size = icmd->un.cont64[i].tus.f.bdeSize;
149 lpfc_ct_unsol_buffer(phba, piocbq, mp, size); 150 lpfc_ct_unsol_buffer(phba, iocbq, mp, size);
150 lpfc_in_buf_free(phba, mp); 151 lpfc_in_buf_free(phba, mp);
151 } 152 }
152 list_del(&iocbq->list);
153 lpfc_sli_release_iocbq(phba, iocbq);
154 lpfc_post_buffer(phba, pring, i); 153 lpfc_post_buffer(phba, pring, i);
155 } 154 }
155 list_del(&head);
156 } 156 }
157} 157}
158 158
@@ -212,7 +212,7 @@ lpfc_alloc_ct_rsp(struct lpfc_hba *phba, int cmdcode, struct ulp_bde64 *bpl,
212 else 212 else
213 list_add_tail(&mp->list, &mlist->list); 213 list_add_tail(&mp->list, &mlist->list);
214 214
215 bpl->tus.f.bdeFlags = BUFF_USE_RCV; 215 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
216 /* build buffer ptr list for IOCB */ 216 /* build buffer ptr list for IOCB */
217 bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys) ); 217 bpl->addrLow = le32_to_cpu(putPaddrLow(mp->phys) );
218 bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys) ); 218 bpl->addrHigh = le32_to_cpu(putPaddrHigh(mp->phys) );
@@ -283,7 +283,7 @@ lpfc_gen_req(struct lpfc_vport *vport, struct lpfc_dmabuf *bmp,
283 icmd->un.genreq64.bdl.ulpIoTag32 = 0; 283 icmd->un.genreq64.bdl.ulpIoTag32 = 0;
284 icmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys); 284 icmd->un.genreq64.bdl.addrHigh = putPaddrHigh(bmp->phys);
285 icmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys); 285 icmd->un.genreq64.bdl.addrLow = putPaddrLow(bmp->phys);
286 icmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BDL; 286 icmd->un.genreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
287 icmd->un.genreq64.bdl.bdeSize = (num_entry * sizeof (struct ulp_bde64)); 287 icmd->un.genreq64.bdl.bdeSize = (num_entry * sizeof (struct ulp_bde64));
288 288
289 if (usr_flg) 289 if (usr_flg)
@@ -861,7 +861,7 @@ lpfc_cmpl_ct(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
861 861
862 retry++; 862 retry++;
863 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 863 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
864 "0216 Retrying NS cmd %x\n", cmdcode); 864 "0250 Retrying NS cmd %x\n", cmdcode);
865 rc = lpfc_ns_cmd(vport, cmdcode, retry, 0); 865 rc = lpfc_ns_cmd(vport, cmdcode, retry, 0);
866 if (rc == 0) 866 if (rc == 0)
867 goto out; 867 goto out;
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index 094b47e94b29..771920bdde44 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -1,7 +1,7 @@
1/******************************************************************* 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for * 2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. * 3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2007 Emulex. All rights reserved. * 4 * Copyright (C) 2007-2008 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. * 5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com * 6 * www.emulex.com *
7 * * 7 * *
@@ -35,6 +35,7 @@
35 35
36#include "lpfc_hw.h" 36#include "lpfc_hw.h"
37#include "lpfc_sli.h" 37#include "lpfc_sli.h"
38#include "lpfc_nl.h"
38#include "lpfc_disc.h" 39#include "lpfc_disc.h"
39#include "lpfc_scsi.h" 40#include "lpfc_scsi.h"
40#include "lpfc.h" 41#include "lpfc.h"
@@ -46,13 +47,14 @@
46#include "lpfc_debugfs.h" 47#include "lpfc_debugfs.h"
47 48
48#ifdef CONFIG_LPFC_DEBUG_FS 49#ifdef CONFIG_LPFC_DEBUG_FS
49/* debugfs interface 50/**
51 * debugfs interface
50 * 52 *
51 * To access this interface the user should: 53 * To access this interface the user should:
52 * # mkdir /debug 54 * # mkdir /debug
53 * # mount -t debugfs none /debug 55 * # mount -t debugfs none /debug
54 * 56 *
55 * The lpfc debugfs directory hierachy is: 57 * The lpfc debugfs directory hierarchy is:
56 * lpfc/lpfcX/vportY 58 * lpfc/lpfcX/vportY
57 * where X is the lpfc hba unique_id 59 * where X is the lpfc hba unique_id
58 * where Y is the vport VPI on that hba 60 * where Y is the vport VPI on that hba
@@ -61,14 +63,21 @@
61 * discovery_trace 63 * discovery_trace
62 * This is an ACSII readable file that contains a trace of the last 64 * This is an ACSII readable file that contains a trace of the last
63 * lpfc_debugfs_max_disc_trc events that happened on a specific vport. 65 * lpfc_debugfs_max_disc_trc events that happened on a specific vport.
64 * See lpfc_debugfs.h for different categories of 66 * See lpfc_debugfs.h for different categories of discovery events.
65 * discovery events. To enable the discovery trace, the following 67 * To enable the discovery trace, the following module parameters must be set:
66 * module parameters must be set:
67 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support 68 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
68 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for 69 * lpfc_debugfs_max_disc_trc=X Where X is the event trace depth for
69 * EACH vport. X MUST also be a power of 2. 70 * EACH vport. X MUST also be a power of 2.
70 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in 71 * lpfc_debugfs_mask_disc_trc=Y Where Y is an event mask as defined in
71 * lpfc_debugfs.h . 72 * lpfc_debugfs.h .
73 *
74 * slow_ring_trace
75 * This is an ACSII readable file that contains a trace of the last
76 * lpfc_debugfs_max_slow_ring_trc events that happened on a specific HBA.
77 * To enable the slow ring trace, the following module parameters must be set:
78 * lpfc_debugfs_enable=1 Turns on lpfc debugfs filesystem support
79 * lpfc_debugfs_max_slow_ring_trc=X Where X is the event trace depth for
80 * the HBA. X MUST also be a power of 2.
72 */ 81 */
73static int lpfc_debugfs_enable = 1; 82static int lpfc_debugfs_enable = 1;
74module_param(lpfc_debugfs_enable, int, 0); 83module_param(lpfc_debugfs_enable, int, 0);
@@ -117,6 +126,25 @@ struct lpfc_debug {
117static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); 126static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0);
118static unsigned long lpfc_debugfs_start_time = 0L; 127static unsigned long lpfc_debugfs_start_time = 0L;
119 128
129/**
130 * lpfc_debugfs_disc_trc_data - Dump discovery logging to a buffer.
131 * @vport: The vport to gather the log info from.
132 * @buf: The buffer to dump log into.
133 * @size: The maximum amount of data to process.
134 *
135 * Description:
136 * This routine gathers the lpfc discovery debugfs data from the @vport and
137 * dumps it to @buf up to @size number of bytes. It will start at the next entry
138 * in the log and process the log until the end of the buffer. Then it will
139 * gather from the beginning of the log and process until the current entry.
140 *
141 * Notes:
142 * Discovery logging will be disabled while while this routine dumps the log.
143 *
144 * Return Value:
145 * This routine returns the amount of bytes that were dumped into @buf and will
146 * not exceed @size.
147 **/
120static int 148static int
121lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size) 149lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
122{ 150{
@@ -125,7 +153,6 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
125 struct lpfc_debugfs_trc *dtp; 153 struct lpfc_debugfs_trc *dtp;
126 char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE]; 154 char buffer[LPFC_DEBUG_TRC_ENTRY_SIZE];
127 155
128
129 enable = lpfc_debugfs_enable; 156 enable = lpfc_debugfs_enable;
130 lpfc_debugfs_enable = 0; 157 lpfc_debugfs_enable = 0;
131 158
@@ -159,6 +186,25 @@ lpfc_debugfs_disc_trc_data(struct lpfc_vport *vport, char *buf, int size)
159 return len; 186 return len;
160} 187}
161 188
189/**
190 * lpfc_debugfs_slow_ring_trc_data - Dump slow ring logging to a buffer.
191 * @phba: The HBA to gather the log info from.
192 * @buf: The buffer to dump log into.
193 * @size: The maximum amount of data to process.
194 *
195 * Description:
196 * This routine gathers the lpfc slow ring debugfs data from the @phba and
197 * dumps it to @buf up to @size number of bytes. It will start at the next entry
198 * in the log and process the log until the end of the buffer. Then it will
199 * gather from the beginning of the log and process until the current entry.
200 *
201 * Notes:
202 * Slow ring logging will be disabled while while this routine dumps the log.
203 *
204 * Return Value:
205 * This routine returns the amount of bytes that were dumped into @buf and will
206 * not exceed @size.
207 **/
162static int 208static int
163lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size) 209lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
164{ 210{
@@ -203,6 +249,25 @@ lpfc_debugfs_slow_ring_trc_data(struct lpfc_hba *phba, char *buf, int size)
203 249
204static int lpfc_debugfs_last_hbq = -1; 250static int lpfc_debugfs_last_hbq = -1;
205 251
252/**
253 * lpfc_debugfs_hbqinfo_data - Dump host buffer queue info to a buffer.
254 * @phba: The HBA to gather host buffer info from.
255 * @buf: The buffer to dump log into.
256 * @size: The maximum amount of data to process.
257 *
258 * Description:
259 * This routine dumps the host buffer queue info from the @phba to @buf up to
260 * @size number of bytes. A header that describes the current hbq state will be
261 * dumped to @buf first and then info on each hbq entry will be dumped to @buf
262 * until @size bytes have been dumped or all the hbq info has been dumped.
263 *
264 * Notes:
265 * This routine will rotate through each configured HBQ each time called.
266 *
267 * Return Value:
268 * This routine returns the amount of bytes that were dumped into @buf and will
269 * not exceed @size.
270 **/
206static int 271static int
207lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size) 272lpfc_debugfs_hbqinfo_data(struct lpfc_hba *phba, char *buf, int size)
208{ 273{
@@ -303,6 +368,24 @@ skipit:
303 368
304static int lpfc_debugfs_last_hba_slim_off; 369static int lpfc_debugfs_last_hba_slim_off;
305 370
371/**
372 * lpfc_debugfs_dumpHBASlim_data - Dump HBA SLIM info to a buffer.
373 * @phba: The HBA to gather SLIM info from.
374 * @buf: The buffer to dump log into.
375 * @size: The maximum amount of data to process.
376 *
377 * Description:
378 * This routine dumps the current contents of HBA SLIM for the HBA associated
379 * with @phba to @buf up to @size bytes of data. This is the raw HBA SLIM data.
380 *
381 * Notes:
382 * This routine will only dump up to 1024 bytes of data each time called and
383 * should be called multiple times to dump the entire HBA SLIM.
384 *
385 * Return Value:
386 * This routine returns the amount of bytes that were dumped into @buf and will
387 * not exceed @size.
388 **/
306static int 389static int
307lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size) 390lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size)
308{ 391{
@@ -342,6 +425,21 @@ lpfc_debugfs_dumpHBASlim_data(struct lpfc_hba *phba, char *buf, int size)
342 return len; 425 return len;
343} 426}
344 427
428/**
429 * lpfc_debugfs_dumpHostSlim_data - Dump host SLIM info to a buffer.
430 * @phba: The HBA to gather Host SLIM info from.
431 * @buf: The buffer to dump log into.
432 * @size: The maximum amount of data to process.
433 *
434 * Description:
435 * This routine dumps the current contents of host SLIM for the host associated
436 * with @phba to @buf up to @size bytes of data. The dump will contain the
437 * Mailbox, PCB, Rings, and Registers that are located in host memory.
438 *
439 * Return Value:
440 * This routine returns the amount of bytes that were dumped into @buf and will
441 * not exceed @size.
442 **/
345static int 443static int
346lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size) 444lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
347{ 445{
@@ -357,7 +455,7 @@ lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
357 spin_lock_irq(&phba->hbalock); 455 spin_lock_irq(&phba->hbalock);
358 456
359 len += snprintf(buf+len, size-len, "SLIM Mailbox\n"); 457 len += snprintf(buf+len, size-len, "SLIM Mailbox\n");
360 ptr = (uint32_t *)phba->slim2p; 458 ptr = (uint32_t *)phba->slim2p.virt;
361 i = sizeof(MAILBOX_t); 459 i = sizeof(MAILBOX_t);
362 while (i > 0) { 460 while (i > 0) {
363 len += snprintf(buf+len, size-len, 461 len += snprintf(buf+len, size-len,
@@ -370,7 +468,7 @@ lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
370 } 468 }
371 469
372 len += snprintf(buf+len, size-len, "SLIM PCB\n"); 470 len += snprintf(buf+len, size-len, "SLIM PCB\n");
373 ptr = (uint32_t *)&phba->slim2p->pcb; 471 ptr = (uint32_t *)phba->pcb;
374 i = sizeof(PCB_t); 472 i = sizeof(PCB_t);
375 while (i > 0) { 473 while (i > 0) {
376 len += snprintf(buf+len, size-len, 474 len += snprintf(buf+len, size-len,
@@ -382,44 +480,16 @@ lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
382 off += (8 * sizeof(uint32_t)); 480 off += (8 * sizeof(uint32_t));
383 } 481 }
384 482
385 pgpp = (struct lpfc_pgp *)&phba->slim2p->mbx.us.s3_pgp.port; 483 for (i = 0; i < 4; i++) {
386 pring = &psli->ring[0]; 484 pgpp = &phba->port_gp[i];
387 len += snprintf(buf+len, size-len, 485 pring = &psli->ring[i];
388 "Ring 0: CMD GetInx:%d (Max:%d Next:%d Local:%d flg:x%x) " 486 len += snprintf(buf+len, size-len,
389 "RSP PutInx:%d Max:%d\n", 487 "Ring %d: CMD GetInx:%d (Max:%d Next:%d "
390 pgpp->cmdGetInx, pring->numCiocb, 488 "Local:%d flg:x%x) RSP PutInx:%d Max:%d\n",
391 pring->next_cmdidx, pring->local_getidx, pring->flag, 489 i, pgpp->cmdGetInx, pring->numCiocb,
392 pgpp->rspPutInx, pring->numRiocb); 490 pring->next_cmdidx, pring->local_getidx,
393 pgpp++; 491 pring->flag, pgpp->rspPutInx, pring->numRiocb);
394 492 }
395 pring = &psli->ring[1];
396 len += snprintf(buf+len, size-len,
397 "Ring 1: CMD GetInx:%d (Max:%d Next:%d Local:%d flg:x%x) "
398 "RSP PutInx:%d Max:%d\n",
399 pgpp->cmdGetInx, pring->numCiocb,
400 pring->next_cmdidx, pring->local_getidx, pring->flag,
401 pgpp->rspPutInx, pring->numRiocb);
402 pgpp++;
403
404 pring = &psli->ring[2];
405 len += snprintf(buf+len, size-len,
406 "Ring 2: CMD GetInx:%d (Max:%d Next:%d Local:%d flg:x%x) "
407 "RSP PutInx:%d Max:%d\n",
408 pgpp->cmdGetInx, pring->numCiocb,
409 pring->next_cmdidx, pring->local_getidx, pring->flag,
410 pgpp->rspPutInx, pring->numRiocb);
411 pgpp++;
412
413 pring = &psli->ring[3];
414 len += snprintf(buf+len, size-len,
415 "Ring 3: CMD GetInx:%d (Max:%d Next:%d Local:%d flg:x%x) "
416 "RSP PutInx:%d Max:%d\n",
417 pgpp->cmdGetInx, pring->numCiocb,
418 pring->next_cmdidx, pring->local_getidx, pring->flag,
419 pgpp->rspPutInx, pring->numRiocb);
420
421
422 ptr = (uint32_t *)&phba->slim2p->mbx.us.s3_pgp.hbq_get;
423 word0 = readl(phba->HAregaddr); 493 word0 = readl(phba->HAregaddr);
424 word1 = readl(phba->CAregaddr); 494 word1 = readl(phba->CAregaddr);
425 word2 = readl(phba->HSregaddr); 495 word2 = readl(phba->HSregaddr);
@@ -430,6 +500,21 @@ lpfc_debugfs_dumpHostSlim_data(struct lpfc_hba *phba, char *buf, int size)
430 return len; 500 return len;
431} 501}
432 502
503/**
504 * lpfc_debugfs_nodelist_data - Dump target node list to a buffer.
505 * @vport: The vport to gather target node info from.
506 * @buf: The buffer to dump log into.
507 * @size: The maximum amount of data to process.
508 *
509 * Description:
510 * This routine dumps the current target node list associated with @vport to
511 * @buf up to @size bytes of data. Each node entry in the dump will contain a
512 * node state, DID, WWPN, WWNN, RPI, flags, type, and other useful fields.
513 *
514 * Return Value:
515 * This routine returns the amount of bytes that were dumped into @buf and will
516 * not exceed @size.
517 **/
433static int 518static int
434lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size) 519lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
435{ 520{
@@ -513,7 +598,22 @@ lpfc_debugfs_nodelist_data(struct lpfc_vport *vport, char *buf, int size)
513} 598}
514#endif 599#endif
515 600
516 601/**
602 * lpfc_debugfs_disc_trc - Store discovery trace log.
603 * @vport: The vport to associate this trace string with for retrieval.
604 * @mask: Log entry classification.
605 * @fmt: Format string to be displayed when dumping the log.
606 * @data1: 1st data parameter to be applied to @fmt.
607 * @data2: 2nd data parameter to be applied to @fmt.
608 * @data3: 3rd data parameter to be applied to @fmt.
609 *
610 * Description:
611 * This routine is used by the driver code to add a debugfs log entry to the
612 * discovery trace buffer associated with @vport. Only entries with a @mask that
613 * match the current debugfs discovery mask will be saved. Entries that do not
614 * match will be thrown away. @fmt, @data1, @data2, and @data3 are used like
615 * printf when displaying the log.
616 **/
517inline void 617inline void
518lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt, 618lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
519 uint32_t data1, uint32_t data2, uint32_t data3) 619 uint32_t data1, uint32_t data2, uint32_t data3)
@@ -542,6 +642,19 @@ lpfc_debugfs_disc_trc(struct lpfc_vport *vport, int mask, char *fmt,
542 return; 642 return;
543} 643}
544 644
645/**
646 * lpfc_debugfs_slow_ring_trc - Store slow ring trace log.
647 * @phba: The phba to associate this trace string with for retrieval.
648 * @fmt: Format string to be displayed when dumping the log.
649 * @data1: 1st data parameter to be applied to @fmt.
650 * @data2: 2nd data parameter to be applied to @fmt.
651 * @data3: 3rd data parameter to be applied to @fmt.
652 *
653 * Description:
654 * This routine is used by the driver code to add a debugfs log entry to the
655 * discovery trace buffer associated with @vport. @fmt, @data1, @data2, and
656 * @data3 are used like printf when displaying the log.
657 **/
545inline void 658inline void
546lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt, 659lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
547 uint32_t data1, uint32_t data2, uint32_t data3) 660 uint32_t data1, uint32_t data2, uint32_t data3)
@@ -568,6 +681,21 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_hba *phba, char *fmt,
568} 681}
569 682
570#ifdef CONFIG_LPFC_DEBUG_FS 683#ifdef CONFIG_LPFC_DEBUG_FS
684/**
685 * lpfc_debugfs_disc_trc_open - Open the discovery trace log.
686 * @inode: The inode pointer that contains a vport pointer.
687 * @file: The file pointer to attach the log output.
688 *
689 * Description:
690 * This routine is the entry point for the debugfs open file operation. It gets
691 * the vport from the i_private field in @inode, allocates the necessary buffer
692 * for the log, fills the buffer from the in-memory log for this vport, and then
693 * returns a pointer to that log in the private_data field in @file.
694 *
695 * Returns:
696 * This function returns zero if successful. On error it will return an negative
697 * error value.
698 **/
571static int 699static int
572lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file) 700lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file)
573{ 701{
@@ -585,7 +713,7 @@ lpfc_debugfs_disc_trc_open(struct inode *inode, struct file *file)
585 if (!debug) 713 if (!debug)
586 goto out; 714 goto out;
587 715
588 /* Round to page boundry */ 716 /* Round to page boundary */
589 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 717 size = (lpfc_debugfs_max_disc_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
590 size = PAGE_ALIGN(size); 718 size = PAGE_ALIGN(size);
591 719
@@ -603,6 +731,21 @@ out:
603 return rc; 731 return rc;
604} 732}
605 733
734/**
735 * lpfc_debugfs_slow_ring_trc_open - Open the Slow Ring trace log.
736 * @inode: The inode pointer that contains a vport pointer.
737 * @file: The file pointer to attach the log output.
738 *
739 * Description:
740 * This routine is the entry point for the debugfs open file operation. It gets
741 * the vport from the i_private field in @inode, allocates the necessary buffer
742 * for the log, fills the buffer from the in-memory log for this vport, and then
743 * returns a pointer to that log in the private_data field in @file.
744 *
745 * Returns:
746 * This function returns zero if successful. On error it will return an negative
747 * error value.
748 **/
606static int 749static int
607lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file) 750lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file)
608{ 751{
@@ -620,7 +763,7 @@ lpfc_debugfs_slow_ring_trc_open(struct inode *inode, struct file *file)
620 if (!debug) 763 if (!debug)
621 goto out; 764 goto out;
622 765
623 /* Round to page boundry */ 766 /* Round to page boundary */
624 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE); 767 size = (lpfc_debugfs_max_slow_ring_trc * LPFC_DEBUG_TRC_ENTRY_SIZE);
625 size = PAGE_ALIGN(size); 768 size = PAGE_ALIGN(size);
626 769
@@ -638,6 +781,21 @@ out:
638 return rc; 781 return rc;
639} 782}
640 783
784/**
785 * lpfc_debugfs_hbqinfo_open - Open the hbqinfo debugfs buffer.
786 * @inode: The inode pointer that contains a vport pointer.
787 * @file: The file pointer to attach the log output.
788 *
789 * Description:
790 * This routine is the entry point for the debugfs open file operation. It gets
791 * the vport from the i_private field in @inode, allocates the necessary buffer
792 * for the log, fills the buffer from the in-memory log for this vport, and then
793 * returns a pointer to that log in the private_data field in @file.
794 *
795 * Returns:
796 * This function returns zero if successful. On error it will return an negative
797 * error value.
798 **/
641static int 799static int
642lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file) 800lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file)
643{ 801{
@@ -649,7 +807,7 @@ lpfc_debugfs_hbqinfo_open(struct inode *inode, struct file *file)
649 if (!debug) 807 if (!debug)
650 goto out; 808 goto out;
651 809
652 /* Round to page boundry */ 810 /* Round to page boundary */
653 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL); 811 debug->buffer = kmalloc(LPFC_HBQINFO_SIZE, GFP_KERNEL);
654 if (!debug->buffer) { 812 if (!debug->buffer) {
655 kfree(debug); 813 kfree(debug);
@@ -665,6 +823,21 @@ out:
665 return rc; 823 return rc;
666} 824}
667 825
826/**
827 * lpfc_debugfs_dumpHBASlim_open - Open the Dump HBA SLIM debugfs buffer.
828 * @inode: The inode pointer that contains a vport pointer.
829 * @file: The file pointer to attach the log output.
830 *
831 * Description:
832 * This routine is the entry point for the debugfs open file operation. It gets
833 * the vport from the i_private field in @inode, allocates the necessary buffer
834 * for the log, fills the buffer from the in-memory log for this vport, and then
835 * returns a pointer to that log in the private_data field in @file.
836 *
837 * Returns:
838 * This function returns zero if successful. On error it will return an negative
839 * error value.
840 **/
668static int 841static int
669lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file) 842lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file)
670{ 843{
@@ -676,7 +849,7 @@ lpfc_debugfs_dumpHBASlim_open(struct inode *inode, struct file *file)
676 if (!debug) 849 if (!debug)
677 goto out; 850 goto out;
678 851
679 /* Round to page boundry */ 852 /* Round to page boundary */
680 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL); 853 debug->buffer = kmalloc(LPFC_DUMPHBASLIM_SIZE, GFP_KERNEL);
681 if (!debug->buffer) { 854 if (!debug->buffer) {
682 kfree(debug); 855 kfree(debug);
@@ -692,6 +865,21 @@ out:
692 return rc; 865 return rc;
693} 866}
694 867
868/**
869 * lpfc_debugfs_dumpHostSlim_open - Open the Dump Host SLIM debugfs buffer.
870 * @inode: The inode pointer that contains a vport pointer.
871 * @file: The file pointer to attach the log output.
872 *
873 * Description:
874 * This routine is the entry point for the debugfs open file operation. It gets
875 * the vport from the i_private field in @inode, allocates the necessary buffer
876 * for the log, fills the buffer from the in-memory log for this vport, and then
877 * returns a pointer to that log in the private_data field in @file.
878 *
879 * Returns:
880 * This function returns zero if successful. On error it will return an negative
881 * error value.
882 **/
695static int 883static int
696lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file) 884lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file)
697{ 885{
@@ -703,7 +891,7 @@ lpfc_debugfs_dumpHostSlim_open(struct inode *inode, struct file *file)
703 if (!debug) 891 if (!debug)
704 goto out; 892 goto out;
705 893
706 /* Round to page boundry */ 894 /* Round to page boundary */
707 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL); 895 debug->buffer = kmalloc(LPFC_DUMPHOSTSLIM_SIZE, GFP_KERNEL);
708 if (!debug->buffer) { 896 if (!debug->buffer) {
709 kfree(debug); 897 kfree(debug);
@@ -719,6 +907,21 @@ out:
719 return rc; 907 return rc;
720} 908}
721 909
910/**
911 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file.
912 * @inode: The inode pointer that contains a vport pointer.
913 * @file: The file pointer to attach the log output.
914 *
915 * Description:
916 * This routine is the entry point for the debugfs open file operation. It gets
917 * the vport from the i_private field in @inode, allocates the necessary buffer
918 * for the log, fills the buffer from the in-memory log for this vport, and then
919 * returns a pointer to that log in the private_data field in @file.
920 *
921 * Returns:
922 * This function returns zero if successful. On error it will return an negative
923 * error value.
924 **/
722static int 925static int
723lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file) 926lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file)
724{ 927{
@@ -730,7 +933,7 @@ lpfc_debugfs_nodelist_open(struct inode *inode, struct file *file)
730 if (!debug) 933 if (!debug)
731 goto out; 934 goto out;
732 935
733 /* Round to page boundry */ 936 /* Round to page boundary */
734 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL); 937 debug->buffer = kmalloc(LPFC_NODELIST_SIZE, GFP_KERNEL);
735 if (!debug->buffer) { 938 if (!debug->buffer) {
736 kfree(debug); 939 kfree(debug);
@@ -746,6 +949,23 @@ out:
746 return rc; 949 return rc;
747} 950}
748 951
952/**
953 * lpfc_debugfs_lseek - Seek through a debugfs file.
954 * @file: The file pointer to seek through.
955 * @off: The offset to seek to or the amount to seek by.
956 * @whence: Indicates how to seek.
957 *
958 * Description:
959 * This routine is the entry point for the debugfs lseek file operation. The
960 * @whence parameter indicates whether @off is the offset to directly seek to,
961 * or if it is a value to seek forward or reverse by. This function figures out
962 * what the new offset of the debugfs file will be and assigns that value to the
963 * f_pos field of @file.
964 *
965 * Returns:
966 * This function returns the new offset if successful and returns a negative
967 * error if unable to process the seek.
968 **/
749static loff_t 969static loff_t
750lpfc_debugfs_lseek(struct file *file, loff_t off, int whence) 970lpfc_debugfs_lseek(struct file *file, loff_t off, int whence)
751{ 971{
@@ -767,6 +987,22 @@ lpfc_debugfs_lseek(struct file *file, loff_t off, int whence)
767 return (pos < 0 || pos > debug->len) ? -EINVAL : (file->f_pos = pos); 987 return (pos < 0 || pos > debug->len) ? -EINVAL : (file->f_pos = pos);
768} 988}
769 989
990/**
991 * lpfc_debugfs_read - Read a debugfs file.
992 * @file: The file pointer to read from.
993 * @buf: The buffer to copy the data to.
994 * @nbytes: The number of bytes to read.
995 * @ppos: The position in the file to start reading from.
996 *
997 * Description:
998 * This routine reads data from from the buffer indicated in the private_data
999 * field of @file. It will start reading at @ppos and copy up to @nbytes of
1000 * data to @buf.
1001 *
1002 * Returns:
1003 * This function returns the amount of data that was read (this could be less
1004 * than @nbytes if the end of the file was reached) or a negative error value.
1005 **/
770static ssize_t 1006static ssize_t
771lpfc_debugfs_read(struct file *file, char __user *buf, 1007lpfc_debugfs_read(struct file *file, char __user *buf,
772 size_t nbytes, loff_t *ppos) 1008 size_t nbytes, loff_t *ppos)
@@ -776,6 +1012,18 @@ lpfc_debugfs_read(struct file *file, char __user *buf,
776 debug->len); 1012 debug->len);
777} 1013}
778 1014
1015/**
1016 * lpfc_debugfs_release - Release the buffer used to store debugfs file data.
1017 * @inode: The inode pointer that contains a vport pointer. (unused)
1018 * @file: The file pointer that contains the buffer to release.
1019 *
1020 * Description:
1021 * This routine frees the buffer that was allocated when the debugfs file was
1022 * opened.
1023 *
1024 * Returns:
1025 * This function returns zero.
1026 **/
779static int 1027static int
780lpfc_debugfs_release(struct inode *inode, struct file *file) 1028lpfc_debugfs_release(struct inode *inode, struct file *file)
781{ 1029{
@@ -845,6 +1093,16 @@ static struct dentry *lpfc_debugfs_root = NULL;
845static atomic_t lpfc_debugfs_hba_count; 1093static atomic_t lpfc_debugfs_hba_count;
846#endif 1094#endif
847 1095
1096/**
1097 * lpfc_debugfs_initialize - Initialize debugfs for a vport.
1098 * @vport: The vport pointer to initialize.
1099 *
1100 * Description:
1101 * When Debugfs is configured this routine sets up the lpfc debugfs file system.
1102 * If not already created, this routine will create the lpfc directory, and
1103 * lpfcX directory (for this HBA), and vportX directory for this vport. It will
1104 * also create each file used to access lpfc specific debugfs information.
1105 **/
848inline void 1106inline void
849lpfc_debugfs_initialize(struct lpfc_vport *vport) 1107lpfc_debugfs_initialize(struct lpfc_vport *vport)
850{ 1108{
@@ -862,7 +1120,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
862 atomic_set(&lpfc_debugfs_hba_count, 0); 1120 atomic_set(&lpfc_debugfs_hba_count, 0);
863 if (!lpfc_debugfs_root) { 1121 if (!lpfc_debugfs_root) {
864 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1122 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
865 "0409 Cannot create debugfs root\n"); 1123 "0408 Cannot create debugfs root\n");
866 goto debug_failed; 1124 goto debug_failed;
867 } 1125 }
868 } 1126 }
@@ -876,7 +1134,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
876 debugfs_create_dir(name, lpfc_debugfs_root); 1134 debugfs_create_dir(name, lpfc_debugfs_root);
877 if (!phba->hba_debugfs_root) { 1135 if (!phba->hba_debugfs_root) {
878 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1136 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
879 "0409 Cannot create debugfs hba\n"); 1137 "0412 Cannot create debugfs hba\n");
880 goto debug_failed; 1138 goto debug_failed;
881 } 1139 }
882 atomic_inc(&lpfc_debugfs_hba_count); 1140 atomic_inc(&lpfc_debugfs_hba_count);
@@ -890,7 +1148,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
890 phba, &lpfc_debugfs_op_hbqinfo); 1148 phba, &lpfc_debugfs_op_hbqinfo);
891 if (!phba->debug_hbqinfo) { 1149 if (!phba->debug_hbqinfo) {
892 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1150 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
893 "0409 Cannot create debugfs hbqinfo\n"); 1151 "0411 Cannot create debugfs hbqinfo\n");
894 goto debug_failed; 1152 goto debug_failed;
895 } 1153 }
896 1154
@@ -902,7 +1160,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
902 phba, &lpfc_debugfs_op_dumpHBASlim); 1160 phba, &lpfc_debugfs_op_dumpHBASlim);
903 if (!phba->debug_dumpHBASlim) { 1161 if (!phba->debug_dumpHBASlim) {
904 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1162 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
905 "0409 Cannot create debugfs dumpHBASlim\n"); 1163 "0413 Cannot create debugfs dumpHBASlim\n");
906 goto debug_failed; 1164 goto debug_failed;
907 } 1165 }
908 1166
@@ -914,7 +1172,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
914 phba, &lpfc_debugfs_op_dumpHostSlim); 1172 phba, &lpfc_debugfs_op_dumpHostSlim);
915 if (!phba->debug_dumpHostSlim) { 1173 if (!phba->debug_dumpHostSlim) {
916 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1174 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
917 "0409 Cannot create debugfs dumpHostSlim\n"); 1175 "0414 Cannot create debugfs dumpHostSlim\n");
918 goto debug_failed; 1176 goto debug_failed;
919 } 1177 }
920 1178
@@ -944,7 +1202,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
944 phba, &lpfc_debugfs_op_slow_ring_trc); 1202 phba, &lpfc_debugfs_op_slow_ring_trc);
945 if (!phba->debug_slow_ring_trc) { 1203 if (!phba->debug_slow_ring_trc) {
946 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1204 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
947 "0409 Cannot create debugfs " 1205 "0415 Cannot create debugfs "
948 "slow_ring_trace\n"); 1206 "slow_ring_trace\n");
949 goto debug_failed; 1207 goto debug_failed;
950 } 1208 }
@@ -955,7 +1213,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
955 GFP_KERNEL); 1213 GFP_KERNEL);
956 if (!phba->slow_ring_trc) { 1214 if (!phba->slow_ring_trc) {
957 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1215 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
958 "0409 Cannot create debugfs " 1216 "0416 Cannot create debugfs "
959 "slow_ring buffer\n"); 1217 "slow_ring buffer\n");
960 goto debug_failed; 1218 goto debug_failed;
961 } 1219 }
@@ -972,7 +1230,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
972 debugfs_create_dir(name, phba->hba_debugfs_root); 1230 debugfs_create_dir(name, phba->hba_debugfs_root);
973 if (!vport->vport_debugfs_root) { 1231 if (!vport->vport_debugfs_root) {
974 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1232 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
975 "0409 Cant create debugfs"); 1233 "0417 Cant create debugfs");
976 goto debug_failed; 1234 goto debug_failed;
977 } 1235 }
978 atomic_inc(&phba->debugfs_vport_count); 1236 atomic_inc(&phba->debugfs_vport_count);
@@ -1001,7 +1259,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
1001 1259
1002 if (!vport->disc_trc) { 1260 if (!vport->disc_trc) {
1003 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1261 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1004 "0409 Cannot create debugfs disc trace " 1262 "0418 Cannot create debugfs disc trace "
1005 "buffer\n"); 1263 "buffer\n");
1006 goto debug_failed; 1264 goto debug_failed;
1007 } 1265 }
@@ -1014,7 +1272,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
1014 vport, &lpfc_debugfs_op_disc_trc); 1272 vport, &lpfc_debugfs_op_disc_trc);
1015 if (!vport->debug_disc_trc) { 1273 if (!vport->debug_disc_trc) {
1016 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, 1274 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1017 "0409 Cannot create debugfs " 1275 "0419 Cannot create debugfs "
1018 "discovery_trace\n"); 1276 "discovery_trace\n");
1019 goto debug_failed; 1277 goto debug_failed;
1020 } 1278 }
@@ -1033,7 +1291,17 @@ debug_failed:
1033#endif 1291#endif
1034} 1292}
1035 1293
1036 1294/**
1295 * lpfc_debugfs_terminate - Tear down debugfs infrastructure for this vport.
1296 * @vport: The vport pointer to remove from debugfs.
1297 *
1298 * Description:
1299 * When Debugfs is configured this routine removes debugfs file system elements
1300 * that are specific to this vport. It also checks to see if there are any
1301 * users left for the debugfs directories associated with the HBA and driver. If
1302 * this is the last user of the HBA directory or driver directory then it will
1303 * remove those from the debugfs infrastructure as well.
1304 **/
1037inline void 1305inline void
1038lpfc_debugfs_terminate(struct lpfc_vport *vport) 1306lpfc_debugfs_terminate(struct lpfc_vport *vport)
1039{ 1307{
@@ -1096,5 +1364,3 @@ lpfc_debugfs_terminate(struct lpfc_vport *vport)
1096#endif 1364#endif
1097 return; 1365 return;
1098} 1366}
1099
1100
diff --git a/drivers/scsi/lpfc/lpfc_disc.h b/drivers/scsi/lpfc/lpfc_disc.h
index 2db0b74b6fad..f29e548a90d1 100644
--- a/drivers/scsi/lpfc/lpfc_disc.h
+++ b/drivers/scsi/lpfc/lpfc_disc.h
@@ -37,6 +37,7 @@ enum lpfc_work_type {
37 LPFC_EVT_KILL, 37 LPFC_EVT_KILL,
38 LPFC_EVT_ELS_RETRY, 38 LPFC_EVT_ELS_RETRY,
39 LPFC_EVT_DEV_LOSS, 39 LPFC_EVT_DEV_LOSS,
40 LPFC_EVT_FASTPATH_MGMT_EVT,
40}; 41};
41 42
42/* structure used to queue event to the discovery tasklet */ 43/* structure used to queue event to the discovery tasklet */
@@ -47,6 +48,24 @@ struct lpfc_work_evt {
47 enum lpfc_work_type evt; 48 enum lpfc_work_type evt;
48}; 49};
49 50
51struct lpfc_scsi_check_condition_event;
52struct lpfc_scsi_varqueuedepth_event;
53struct lpfc_scsi_event_header;
54struct lpfc_fabric_event_header;
55struct lpfc_fcprdchkerr_event;
56
57/* structure used for sending events from fast path */
58struct lpfc_fast_path_event {
59 struct lpfc_work_evt work_evt;
60 struct lpfc_vport *vport;
61 union {
62 struct lpfc_scsi_check_condition_event check_cond_evt;
63 struct lpfc_scsi_varqueuedepth_event queue_depth_evt;
64 struct lpfc_scsi_event_header scsi_evt;
65 struct lpfc_fabric_event_header fabric_evt;
66 struct lpfc_fcprdchkerr_event read_check_error;
67 } un;
68};
50 69
51struct lpfc_nodelist { 70struct lpfc_nodelist {
52 struct list_head nlp_listp; 71 struct list_head nlp_listp;
@@ -88,6 +107,10 @@ struct lpfc_nodelist {
88 unsigned long last_ramp_up_time; /* jiffy of last ramp up */ 107 unsigned long last_ramp_up_time; /* jiffy of last ramp up */
89 unsigned long last_q_full_time; /* jiffy of last queue full */ 108 unsigned long last_q_full_time; /* jiffy of last queue full */
90 struct kref kref; 109 struct kref kref;
110 atomic_t cmd_pending;
111 uint32_t cmd_qdepth;
112 unsigned long last_change_time;
113 struct lpfc_scsicmd_bkt *lat_data; /* Latency data */
91}; 114};
92 115
93/* Defines for nlp_flag (uint32) */ 116/* Defines for nlp_flag (uint32) */
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index f54e0f7eaee3..630bd28fb997 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -30,6 +30,7 @@
30 30
31#include "lpfc_hw.h" 31#include "lpfc_hw.h"
32#include "lpfc_sli.h" 32#include "lpfc_sli.h"
33#include "lpfc_nl.h"
33#include "lpfc_disc.h" 34#include "lpfc_disc.h"
34#include "lpfc_scsi.h" 35#include "lpfc_scsi.h"
35#include "lpfc.h" 36#include "lpfc.h"
@@ -53,6 +54,28 @@ static void lpfc_register_new_vport(struct lpfc_hba *phba,
53 54
54static int lpfc_max_els_tries = 3; 55static int lpfc_max_els_tries = 3;
55 56
57/**
58 * lpfc_els_chk_latt: Check host link attention event for a vport.
59 * @vport: pointer to a host virtual N_Port data structure.
60 *
61 * This routine checks whether there is an outstanding host link
62 * attention event during the discovery process with the @vport. It is done
63 * by reading the HBA's Host Attention (HA) register. If there is any host
64 * link attention events during this @vport's discovery process, the @vport
65 * shall be marked as FC_ABORT_DISCOVERY, a host link attention clear shall
66 * be issued if the link state is not already in host link cleared state,
67 * and a return code shall indicate whether the host link attention event
68 * had happened.
69 *
70 * Note that, if either the host link is in state LPFC_LINK_DOWN or @vport
71 * state in LPFC_VPORT_READY, the request for checking host link attention
72 * event will be ignored and a return code shall indicate no host link
73 * attention event had happened.
74 *
75 * Return codes
76 * 0 - no host link attention event happened
77 * 1 - host link attention event happened
78 **/
56int 79int
57lpfc_els_chk_latt(struct lpfc_vport *vport) 80lpfc_els_chk_latt(struct lpfc_vport *vport)
58{ 81{
@@ -92,6 +115,34 @@ lpfc_els_chk_latt(struct lpfc_vport *vport)
92 return 1; 115 return 1;
93} 116}
94 117
118/**
119 * lpfc_prep_els_iocb: Allocate and prepare a lpfc iocb data structure.
120 * @vport: pointer to a host virtual N_Port data structure.
121 * @expectRsp: flag indicating whether response is expected.
122 * @cmdSize: size of the ELS command.
123 * @retry: number of retries to the command IOCB when it fails.
124 * @ndlp: pointer to a node-list data structure.
125 * @did: destination identifier.
126 * @elscmd: the ELS command code.
127 *
128 * This routine is used for allocating a lpfc-IOCB data structure from
129 * the driver lpfc-IOCB free-list and prepare the IOCB with the parameters
130 * passed into the routine for discovery state machine to issue an Extended
131 * Link Service (ELS) commands. It is a generic lpfc-IOCB allocation
132 * and preparation routine that is used by all the discovery state machine
133 * routines and the ELS command-specific fields will be later set up by
134 * the individual discovery machine routines after calling this routine
135 * allocating and preparing a generic IOCB data structure. It fills in the
136 * Buffer Descriptor Entries (BDEs), allocates buffers for both command
137 * payload and response payload (if expected). The reference count on the
138 * ndlp is incremented by 1 and the reference to the ndlp is put into
139 * context1 of the IOCB data structure for this IOCB to hold the ndlp
140 * reference for the command's callback function to access later.
141 *
142 * Return code
143 * Pointer to the newly allocated/prepared els iocb data structure
144 * NULL - when els iocb data structure allocation/preparation failed
145 **/
95static struct lpfc_iocbq * 146static struct lpfc_iocbq *
96lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp, 147lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
97 uint16_t cmdSize, uint8_t retry, 148 uint16_t cmdSize, uint8_t retry,
@@ -150,7 +201,7 @@ lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
150 201
151 icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys); 202 icmd->un.elsreq64.bdl.addrHigh = putPaddrHigh(pbuflist->phys);
152 icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys); 203 icmd->un.elsreq64.bdl.addrLow = putPaddrLow(pbuflist->phys);
153 icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BDL; 204 icmd->un.elsreq64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
154 icmd->un.elsreq64.remoteID = did; /* DID */ 205 icmd->un.elsreq64.remoteID = did; /* DID */
155 if (expectRsp) { 206 if (expectRsp) {
156 icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64)); 207 icmd->un.elsreq64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64));
@@ -185,7 +236,7 @@ lpfc_prep_els_iocb(struct lpfc_vport *vport, uint8_t expectRsp,
185 bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys)); 236 bpl->addrLow = le32_to_cpu(putPaddrLow(prsp->phys));
186 bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys)); 237 bpl->addrHigh = le32_to_cpu(putPaddrHigh(prsp->phys));
187 bpl->tus.f.bdeSize = FCELSSIZE; 238 bpl->tus.f.bdeSize = FCELSSIZE;
188 bpl->tus.f.bdeFlags = BUFF_USE_RCV; 239 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
189 bpl->tus.w = le32_to_cpu(bpl->tus.w); 240 bpl->tus.w = le32_to_cpu(bpl->tus.w);
190 } 241 }
191 242
@@ -233,6 +284,22 @@ els_iocb_free_pcmb_exit:
233 return NULL; 284 return NULL;
234} 285}
235 286
287/**
288 * lpfc_issue_fabric_reglogin: Issue fabric registration login for a vport.
289 * @vport: pointer to a host virtual N_Port data structure.
290 *
291 * This routine issues a fabric registration login for a @vport. An
292 * active ndlp node with Fabric_DID must already exist for this @vport.
293 * The routine invokes two mailbox commands to carry out fabric registration
294 * login through the HBA firmware: the first mailbox command requests the
295 * HBA to perform link configuration for the @vport; and the second mailbox
296 * command requests the HBA to perform the actual fabric registration login
297 * with the @vport.
298 *
299 * Return code
300 * 0 - successfully issued fabric registration login for @vport
301 * -ENXIO -- failed to issue fabric registration login for @vport
302 **/
236static int 303static int
237lpfc_issue_fabric_reglogin(struct lpfc_vport *vport) 304lpfc_issue_fabric_reglogin(struct lpfc_vport *vport)
238{ 305{
@@ -313,6 +380,26 @@ fail:
313 return -ENXIO; 380 return -ENXIO;
314} 381}
315 382
383/**
384 * lpfc_cmpl_els_flogi_fabric: Completion function for flogi to a fabric port.
385 * @vport: pointer to a host virtual N_Port data structure.
386 * @ndlp: pointer to a node-list data structure.
387 * @sp: pointer to service parameter data structure.
388 * @irsp: pointer to the IOCB within the lpfc response IOCB.
389 *
390 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
391 * function to handle the completion of a Fabric Login (FLOGI) into a fabric
392 * port in a fabric topology. It properly sets up the parameters to the @ndlp
393 * from the IOCB response. It also check the newly assigned N_Port ID to the
394 * @vport against the previously assigned N_Port ID. If it is different from
395 * the previously assigned Destination ID (DID), the lpfc_unreg_rpi() routine
396 * is invoked on all the remaining nodes with the @vport to unregister the
397 * Remote Port Indicators (RPIs). Finally, the lpfc_issue_fabric_reglogin()
398 * is invoked to register login to the fabric.
399 *
400 * Return code
401 * 0 - Success (currently, always return 0)
402 **/
316static int 403static int
317lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 404lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
318 struct serv_parm *sp, IOCB_t *irsp) 405 struct serv_parm *sp, IOCB_t *irsp)
@@ -387,7 +474,7 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
387 */ 474 */
388 list_for_each_entry_safe(np, next_np, 475 list_for_each_entry_safe(np, next_np,
389 &vport->fc_nodes, nlp_listp) { 476 &vport->fc_nodes, nlp_listp) {
390 if (!NLP_CHK_NODE_ACT(ndlp)) 477 if (!NLP_CHK_NODE_ACT(np))
391 continue; 478 continue;
392 if ((np->nlp_state != NLP_STE_NPR_NODE) || 479 if ((np->nlp_state != NLP_STE_NPR_NODE) ||
393 !(np->nlp_flag & NLP_NPR_ADISC)) 480 !(np->nlp_flag & NLP_NPR_ADISC))
@@ -416,9 +503,26 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
416 return 0; 503 return 0;
417} 504}
418 505
419/* 506/**
420 * We FLOGIed into an NPort, initiate pt2pt protocol 507 * lpfc_cmpl_els_flogi_nport: Completion function for flogi to an N_Port.
421 */ 508 * @vport: pointer to a host virtual N_Port data structure.
509 * @ndlp: pointer to a node-list data structure.
510 * @sp: pointer to service parameter data structure.
511 *
512 * This routine is invoked by the lpfc_cmpl_els_flogi() completion callback
513 * function to handle the completion of a Fabric Login (FLOGI) into an N_Port
514 * in a point-to-point topology. First, the @vport's N_Port Name is compared
515 * with the received N_Port Name: if the @vport's N_Port Name is greater than
516 * the received N_Port Name lexicographically, this node shall assign local
517 * N_Port ID (PT2PT_LocalID: 1) and remote N_Port ID (PT2PT_RemoteID: 2) and
518 * will send out Port Login (PLOGI) with the N_Port IDs assigned. Otherwise,
519 * this node shall just wait for the remote node to issue PLOGI and assign
520 * N_Port IDs.
521 *
522 * Return code
523 * 0 - Success
524 * -ENXIO - Fail
525 **/
422static int 526static int
423lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 527lpfc_cmpl_els_flogi_nport(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
424 struct serv_parm *sp) 528 struct serv_parm *sp)
@@ -516,6 +620,29 @@ fail:
516 return -ENXIO; 620 return -ENXIO;
517} 621}
518 622
623/**
624 * lpfc_cmpl_els_flogi: Completion callback function for flogi.
625 * @phba: pointer to lpfc hba data structure.
626 * @cmdiocb: pointer to lpfc command iocb data structure.
627 * @rspiocb: pointer to lpfc response iocb data structure.
628 *
629 * This routine is the top-level completion callback function for issuing
630 * a Fabric Login (FLOGI) command. If the response IOCB reported error,
631 * the lpfc_els_retry() routine shall be invoked to retry the FLOGI. If
632 * retry has been made (either immediately or delayed with lpfc_els_retry()
633 * returning 1), the command IOCB will be released and function returned.
634 * If the retry attempt has been given up (possibly reach the maximum
635 * number of retries), one additional decrement of ndlp reference shall be
636 * invoked before going out after releasing the command IOCB. This will
637 * actually release the remote node (Note, lpfc_els_free_iocb() will also
638 * invoke one decrement of ndlp reference count). If no error reported in
639 * the IOCB status, the command Port ID field is used to determine whether
640 * this is a point-to-point topology or a fabric topology: if the Port ID
641 * field is assigned, it is a fabric topology; otherwise, it is a
642 * point-to-point topology. The routine lpfc_cmpl_els_flogi_fabric() or
643 * lpfc_cmpl_els_flogi_nport() shall be invoked accordingly to handle the
644 * specific topology completion conditions.
645 **/
519static void 646static void
520lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 647lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
521 struct lpfc_iocbq *rspiocb) 648 struct lpfc_iocbq *rspiocb)
@@ -618,6 +745,28 @@ out:
618 lpfc_els_free_iocb(phba, cmdiocb); 745 lpfc_els_free_iocb(phba, cmdiocb);
619} 746}
620 747
748/**
749 * lpfc_issue_els_flogi: Issue an flogi iocb command for a vport.
750 * @vport: pointer to a host virtual N_Port data structure.
751 * @ndlp: pointer to a node-list data structure.
752 * @retry: number of retries to the command IOCB.
753 *
754 * This routine issues a Fabric Login (FLOGI) Request ELS command
755 * for a @vport. The initiator service parameters are put into the payload
756 * of the FLOGI Request IOCB and the top-level callback function pointer
757 * to lpfc_cmpl_els_flogi() routine is put to the IOCB completion callback
758 * function field. The lpfc_issue_fabric_iocb routine is invoked to send
759 * out FLOGI ELS command with one outstanding fabric IOCB at a time.
760 *
761 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
762 * will be incremented by 1 for holding the ndlp and the reference to ndlp
763 * will be stored into the context1 field of the IOCB for the completion
764 * callback function to the FLOGI ELS command.
765 *
766 * Return code
767 * 0 - successfully issued flogi iocb for @vport
768 * 1 - failed to issue flogi iocb for @vport
769 **/
621static int 770static int
622lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 771lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
623 uint8_t retry) 772 uint8_t retry)
@@ -694,6 +843,20 @@ lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
694 return 0; 843 return 0;
695} 844}
696 845
846/**
847 * lpfc_els_abort_flogi: Abort all outstanding flogi iocbs.
848 * @phba: pointer to lpfc hba data structure.
849 *
850 * This routine aborts all the outstanding Fabric Login (FLOGI) IOCBs
851 * with a @phba. This routine walks all the outstanding IOCBs on the txcmplq
852 * list and issues an abort IOCB commond on each outstanding IOCB that
853 * contains a active Fabric_DID ndlp. Note that this function is to issue
854 * the abort IOCB command on all the outstanding IOCBs, thus when this
855 * function returns, it does not guarantee all the IOCBs are actually aborted.
856 *
857 * Return code
858 * 0 - Sucessfully issued abort iocb on all outstanding flogis (Always 0)
859 **/
697int 860int
698lpfc_els_abort_flogi(struct lpfc_hba *phba) 861lpfc_els_abort_flogi(struct lpfc_hba *phba)
699{ 862{
@@ -729,6 +892,22 @@ lpfc_els_abort_flogi(struct lpfc_hba *phba)
729 return 0; 892 return 0;
730} 893}
731 894
895/**
896 * lpfc_initial_flogi: Issue an initial fabric login for a vport.
897 * @vport: pointer to a host virtual N_Port data structure.
898 *
899 * This routine issues an initial Fabric Login (FLOGI) for the @vport
900 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
901 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
902 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
903 * it will just be enabled and made active. The lpfc_issue_els_flogi() routine
904 * is then invoked with the @vport and the ndlp to perform the FLOGI for the
905 * @vport.
906 *
907 * Return code
908 * 0 - failed to issue initial flogi for @vport
909 * 1 - successfully issued initial flogi for @vport
910 **/
732int 911int
733lpfc_initial_flogi(struct lpfc_vport *vport) 912lpfc_initial_flogi(struct lpfc_vport *vport)
734{ 913{
@@ -764,6 +943,22 @@ lpfc_initial_flogi(struct lpfc_vport *vport)
764 return 1; 943 return 1;
765} 944}
766 945
946/**
947 * lpfc_initial_fdisc: Issue an initial fabric discovery for a vport.
948 * @vport: pointer to a host virtual N_Port data structure.
949 *
950 * This routine issues an initial Fabric Discover (FDISC) for the @vport
951 * specified. It first searches the ndlp with the Fabric_DID (0xfffffe) from
952 * the @vport's ndlp list. If no such ndlp found, it will create an ndlp and
953 * put it into the @vport's ndlp list. If an inactive ndlp found on the list,
954 * it will just be enabled and made active. The lpfc_issue_els_fdisc() routine
955 * is then invoked with the @vport and the ndlp to perform the FDISC for the
956 * @vport.
957 *
958 * Return code
959 * 0 - failed to issue initial fdisc for @vport
960 * 1 - successfully issued initial fdisc for @vport
961 **/
767int 962int
768lpfc_initial_fdisc(struct lpfc_vport *vport) 963lpfc_initial_fdisc(struct lpfc_vport *vport)
769{ 964{
@@ -797,6 +992,17 @@ lpfc_initial_fdisc(struct lpfc_vport *vport)
797 return 1; 992 return 1;
798} 993}
799 994
995/**
996 * lpfc_more_plogi: Check and issue remaining plogis for a vport.
997 * @vport: pointer to a host virtual N_Port data structure.
998 *
999 * This routine checks whether there are more remaining Port Logins
1000 * (PLOGI) to be issued for the @vport. If so, it will invoke the routine
1001 * lpfc_els_disc_plogi() to go through the Node Port Recovery (NPR) nodes
1002 * to issue ELS PLOGIs up to the configured discover threads with the
1003 * @vport (@vport->cfg_discovery_threads). The function also decrement
1004 * the @vport's num_disc_node by 1 if it is not already 0.
1005 **/
800void 1006void
801lpfc_more_plogi(struct lpfc_vport *vport) 1007lpfc_more_plogi(struct lpfc_vport *vport)
802{ 1008{
@@ -819,6 +1025,37 @@ lpfc_more_plogi(struct lpfc_vport *vport)
819 return; 1025 return;
820} 1026}
821 1027
1028/**
1029 * lpfc_plogi_confirm_nport: Confirm pologi wwpn matches stored ndlp.
1030 * @phba: pointer to lpfc hba data structure.
1031 * @prsp: pointer to response IOCB payload.
1032 * @ndlp: pointer to a node-list data structure.
1033 *
1034 * This routine checks and indicates whether the WWPN of an N_Port, retrieved
1035 * from a PLOGI, matches the WWPN that is stored in the @ndlp for that N_POrt.
1036 * The following cases are considered N_Port confirmed:
1037 * 1) The N_Port is a Fabric ndlp; 2) The @ndlp is on vport list and matches
1038 * the WWPN of the N_Port logged into; 3) The @ndlp is not on vport list but
1039 * it does not have WWPN assigned either. If the WWPN is confirmed, the
1040 * pointer to the @ndlp will be returned. If the WWPN is not confirmed:
1041 * 1) if there is a node on vport list other than the @ndlp with the same
1042 * WWPN of the N_Port PLOGI logged into, the lpfc_unreg_rpi() will be invoked
1043 * on that node to release the RPI associated with the node; 2) if there is
1044 * no node found on vport list with the same WWPN of the N_Port PLOGI logged
1045 * into, a new node shall be allocated (or activated). In either case, the
1046 * parameters of the @ndlp shall be copied to the new_ndlp, the @ndlp shall
1047 * be released and the new_ndlp shall be put on to the vport node list and
1048 * its pointer returned as the confirmed node.
1049 *
1050 * Note that before the @ndlp got "released", the keepDID from not-matching
1051 * or inactive "new_ndlp" on the vport node list is assigned to the nlp_DID
1052 * of the @ndlp. This is because the release of @ndlp is actually to put it
1053 * into an inactive state on the vport node list and the vport node list
1054 * management algorithm does not allow two node with a same DID.
1055 *
1056 * Return code
1057 * pointer to the PLOGI N_Port @ndlp
1058 **/
822static struct lpfc_nodelist * 1059static struct lpfc_nodelist *
823lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp, 1060lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
824 struct lpfc_nodelist *ndlp) 1061 struct lpfc_nodelist *ndlp)
@@ -922,6 +1159,17 @@ lpfc_plogi_confirm_nport(struct lpfc_hba *phba, uint32_t *prsp,
922 return new_ndlp; 1159 return new_ndlp;
923} 1160}
924 1161
1162/**
1163 * lpfc_end_rscn: Check and handle more rscn for a vport.
1164 * @vport: pointer to a host virtual N_Port data structure.
1165 *
1166 * This routine checks whether more Registration State Change
1167 * Notifications (RSCNs) came in while the discovery state machine was in
1168 * the FC_RSCN_MODE. If so, the lpfc_els_handle_rscn() routine will be
1169 * invoked to handle the additional RSCNs for the @vport. Otherwise, the
1170 * FC_RSCN_MODE bit will be cleared with the @vport to mark as the end of
1171 * handling the RSCNs.
1172 **/
925void 1173void
926lpfc_end_rscn(struct lpfc_vport *vport) 1174lpfc_end_rscn(struct lpfc_vport *vport)
927{ 1175{
@@ -943,6 +1191,26 @@ lpfc_end_rscn(struct lpfc_vport *vport)
943 } 1191 }
944} 1192}
945 1193
1194/**
1195 * lpfc_cmpl_els_plogi: Completion callback function for plogi.
1196 * @phba: pointer to lpfc hba data structure.
1197 * @cmdiocb: pointer to lpfc command iocb data structure.
1198 * @rspiocb: pointer to lpfc response iocb data structure.
1199 *
1200 * This routine is the completion callback function for issuing the Port
1201 * Login (PLOGI) command. For PLOGI completion, there must be an active
1202 * ndlp on the vport node list that matches the remote node ID from the
1203 * PLOGI reponse IOCB. If such ndlp does not exist, the PLOGI is simply
1204 * ignored and command IOCB released. The PLOGI response IOCB status is
1205 * checked for error conditons. If there is error status reported, PLOGI
1206 * retry shall be attempted by invoking the lpfc_els_retry() routine.
1207 * Otherwise, the lpfc_plogi_confirm_nport() routine shall be invoked on
1208 * the ndlp and the NLP_EVT_CMPL_PLOGI state to the Discover State Machine
1209 * (DSM) is set for this PLOGI completion. Finally, it checks whether
1210 * there are additional N_Port nodes with the vport that need to perform
1211 * PLOGI. If so, the lpfc_more_plogi() routine is invoked to issue addition
1212 * PLOGIs.
1213 **/
946static void 1214static void
947lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 1215lpfc_cmpl_els_plogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
948 struct lpfc_iocbq *rspiocb) 1216 struct lpfc_iocbq *rspiocb)
@@ -1048,6 +1316,27 @@ out:
1048 return; 1316 return;
1049} 1317}
1050 1318
1319/**
1320 * lpfc_issue_els_plogi: Issue an plogi iocb command for a vport.
1321 * @vport: pointer to a host virtual N_Port data structure.
1322 * @did: destination port identifier.
1323 * @retry: number of retries to the command IOCB.
1324 *
1325 * This routine issues a Port Login (PLOGI) command to a remote N_Port
1326 * (with the @did) for a @vport. Before issuing a PLOGI to a remote N_Port,
1327 * the ndlp with the remote N_Port DID must exist on the @vport's ndlp list.
1328 * This routine constructs the proper feilds of the PLOGI IOCB and invokes
1329 * the lpfc_sli_issue_iocb() routine to send out PLOGI ELS command.
1330 *
1331 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1332 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1333 * will be stored into the context1 field of the IOCB for the completion
1334 * callback function to the PLOGI ELS command.
1335 *
1336 * Return code
1337 * 0 - Successfully issued a plogi for @vport
1338 * 1 - failed to issue a plogi for @vport
1339 **/
1051int 1340int
1052lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry) 1341lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
1053{ 1342{
@@ -1106,6 +1395,19 @@ lpfc_issue_els_plogi(struct lpfc_vport *vport, uint32_t did, uint8_t retry)
1106 return 0; 1395 return 0;
1107} 1396}
1108 1397
1398/**
1399 * lpfc_cmpl_els_prli: Completion callback function for prli.
1400 * @phba: pointer to lpfc hba data structure.
1401 * @cmdiocb: pointer to lpfc command iocb data structure.
1402 * @rspiocb: pointer to lpfc response iocb data structure.
1403 *
1404 * This routine is the completion callback function for a Process Login
1405 * (PRLI) ELS command. The PRLI response IOCB status is checked for error
1406 * status. If there is error status reported, PRLI retry shall be attempted
1407 * by invoking the lpfc_els_retry() routine. Otherwise, the state
1408 * NLP_EVT_CMPL_PRLI is sent to the Discover State Machine (DSM) for this
1409 * ndlp to mark the PRLI completion.
1410 **/
1109static void 1411static void
1110lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 1412lpfc_cmpl_els_prli(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1111 struct lpfc_iocbq *rspiocb) 1413 struct lpfc_iocbq *rspiocb)
@@ -1164,6 +1466,27 @@ out:
1164 return; 1466 return;
1165} 1467}
1166 1468
1469/**
1470 * lpfc_issue_els_prli: Issue a prli iocb command for a vport.
1471 * @vport: pointer to a host virtual N_Port data structure.
1472 * @ndlp: pointer to a node-list data structure.
1473 * @retry: number of retries to the command IOCB.
1474 *
1475 * This routine issues a Process Login (PRLI) ELS command for the
1476 * @vport. The PRLI service parameters are set up in the payload of the
1477 * PRLI Request command and the pointer to lpfc_cmpl_els_prli() routine
1478 * is put to the IOCB completion callback func field before invoking the
1479 * routine lpfc_sli_issue_iocb() to send out PRLI command.
1480 *
1481 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1482 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1483 * will be stored into the context1 field of the IOCB for the completion
1484 * callback function to the PRLI ELS command.
1485 *
1486 * Return code
1487 * 0 - successfully issued prli iocb command for @vport
1488 * 1 - failed to issue prli iocb command for @vport
1489 **/
1167int 1490int
1168lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1491lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1169 uint8_t retry) 1492 uint8_t retry)
@@ -1233,6 +1556,92 @@ lpfc_issue_els_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1233 return 0; 1556 return 0;
1234} 1557}
1235 1558
1559/**
1560 * lpfc_rscn_disc: Perform rscn discovery for a vport.
1561 * @vport: pointer to a host virtual N_Port data structure.
1562 *
1563 * This routine performs Registration State Change Notification (RSCN)
1564 * discovery for a @vport. If the @vport's node port recovery count is not
1565 * zero, it will invoke the lpfc_els_disc_plogi() to perform PLOGI for all
1566 * the nodes that need recovery. If none of the PLOGI were needed through
1567 * the lpfc_els_disc_plogi() routine, the lpfc_end_rscn() routine shall be
1568 * invoked to check and handle possible more RSCN came in during the period
1569 * of processing the current ones.
1570 **/
1571static void
1572lpfc_rscn_disc(struct lpfc_vport *vport)
1573{
1574 lpfc_can_disctmo(vport);
1575
1576 /* RSCN discovery */
1577 /* go thru NPR nodes and issue ELS PLOGIs */
1578 if (vport->fc_npr_cnt)
1579 if (lpfc_els_disc_plogi(vport))
1580 return;
1581
1582 lpfc_end_rscn(vport);
1583}
1584
1585/**
1586 * lpfc_adisc_done: Complete the adisc phase of discovery.
1587 * @vport: pointer to lpfc_vport hba data structure that finished all ADISCs.
1588 *
1589 * This function is called when the final ADISC is completed during discovery.
1590 * This function handles clearing link attention or issuing reg_vpi depending
1591 * on whether npiv is enabled. This function also kicks off the PLOGI phase of
1592 * discovery.
1593 * This function is called with no locks held.
1594 **/
1595static void
1596lpfc_adisc_done(struct lpfc_vport *vport)
1597{
1598 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1599 struct lpfc_hba *phba = vport->phba;
1600
1601 /*
1602 * For NPIV, cmpl_reg_vpi will set port_state to READY,
1603 * and continue discovery.
1604 */
1605 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1606 !(vport->fc_flag & FC_RSCN_MODE)) {
1607 lpfc_issue_reg_vpi(phba, vport);
1608 return;
1609 }
1610 /*
1611 * For SLI2, we need to set port_state to READY
1612 * and continue discovery.
1613 */
1614 if (vport->port_state < LPFC_VPORT_READY) {
1615 /* If we get here, there is nothing to ADISC */
1616 if (vport->port_type == LPFC_PHYSICAL_PORT)
1617 lpfc_issue_clear_la(phba, vport);
1618 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
1619 vport->num_disc_nodes = 0;
1620 /* go thru NPR list, issue ELS PLOGIs */
1621 if (vport->fc_npr_cnt)
1622 lpfc_els_disc_plogi(vport);
1623 if (!vport->num_disc_nodes) {
1624 spin_lock_irq(shost->host_lock);
1625 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1626 spin_unlock_irq(shost->host_lock);
1627 lpfc_can_disctmo(vport);
1628 lpfc_end_rscn(vport);
1629 }
1630 }
1631 vport->port_state = LPFC_VPORT_READY;
1632 } else
1633 lpfc_rscn_disc(vport);
1634}
1635
1636/**
1637 * lpfc_more_adisc: Issue more adisc as needed.
1638 * @vport: pointer to a host virtual N_Port data structure.
1639 *
1640 * This routine determines whether there are more ndlps on a @vport
1641 * node list need to have Address Discover (ADISC) issued. If so, it will
1642 * invoke the lpfc_els_disc_adisc() routine to issue ADISC on the @vport's
1643 * remaining nodes which need to have ADISC sent.
1644 **/
1236void 1645void
1237lpfc_more_adisc(struct lpfc_vport *vport) 1646lpfc_more_adisc(struct lpfc_vport *vport)
1238{ 1647{
@@ -1252,23 +1661,27 @@ lpfc_more_adisc(struct lpfc_vport *vport)
1252 /* go thru NPR nodes and issue any remaining ELS ADISCs */ 1661 /* go thru NPR nodes and issue any remaining ELS ADISCs */
1253 sentadisc = lpfc_els_disc_adisc(vport); 1662 sentadisc = lpfc_els_disc_adisc(vport);
1254 } 1663 }
1664 if (!vport->num_disc_nodes)
1665 lpfc_adisc_done(vport);
1255 return; 1666 return;
1256} 1667}
1257 1668
1258static void 1669/**
1259lpfc_rscn_disc(struct lpfc_vport *vport) 1670 * lpfc_cmpl_els_adisc: Completion callback function for adisc.
1260{ 1671 * @phba: pointer to lpfc hba data structure.
1261 lpfc_can_disctmo(vport); 1672 * @cmdiocb: pointer to lpfc command iocb data structure.
1262 1673 * @rspiocb: pointer to lpfc response iocb data structure.
1263 /* RSCN discovery */ 1674 *
1264 /* go thru NPR nodes and issue ELS PLOGIs */ 1675 * This routine is the completion function for issuing the Address Discover
1265 if (vport->fc_npr_cnt) 1676 * (ADISC) command. It first checks to see whether link went down during
1266 if (lpfc_els_disc_plogi(vport)) 1677 * the discovery process. If so, the node will be marked as node port
1267 return; 1678 * recovery for issuing discover IOCB by the link attention handler and
1268 1679 * exit. Otherwise, the response status is checked. If error was reported
1269 lpfc_end_rscn(vport); 1680 * in the response status, the ADISC command shall be retried by invoking
1270} 1681 * the lpfc_els_retry() routine. Otherwise, if no error was reported in
1271 1682 * the response status, the state machine is invoked to set transition
1683 * with respect to NLP_EVT_CMPL_ADISC event.
1684 **/
1272static void 1685static void
1273lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 1686lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1274 struct lpfc_iocbq *rspiocb) 1687 struct lpfc_iocbq *rspiocb)
@@ -1333,57 +1746,34 @@ lpfc_cmpl_els_adisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1333 lpfc_disc_state_machine(vport, ndlp, cmdiocb, 1746 lpfc_disc_state_machine(vport, ndlp, cmdiocb,
1334 NLP_EVT_CMPL_ADISC); 1747 NLP_EVT_CMPL_ADISC);
1335 1748
1336 if (disc && vport->num_disc_nodes) { 1749 /* Check to see if there are more ADISCs to be sent */
1337 /* Check to see if there are more ADISCs to be sent */ 1750 if (disc && vport->num_disc_nodes)
1338 lpfc_more_adisc(vport); 1751 lpfc_more_adisc(vport);
1339
1340 /* Check to see if we are done with ADISC authentication */
1341 if (vport->num_disc_nodes == 0) {
1342 /* If we get here, there is nothing left to ADISC */
1343 /*
1344 * For NPIV, cmpl_reg_vpi will set port_state to READY,
1345 * and continue discovery.
1346 */
1347 if ((phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) &&
1348 !(vport->fc_flag & FC_RSCN_MODE)) {
1349 lpfc_issue_reg_vpi(phba, vport);
1350 goto out;
1351 }
1352 /*
1353 * For SLI2, we need to set port_state to READY
1354 * and continue discovery.
1355 */
1356 if (vport->port_state < LPFC_VPORT_READY) {
1357 /* If we get here, there is nothing to ADISC */
1358 if (vport->port_type == LPFC_PHYSICAL_PORT)
1359 lpfc_issue_clear_la(phba, vport);
1360
1361 if (!(vport->fc_flag & FC_ABORT_DISCOVERY)) {
1362 vport->num_disc_nodes = 0;
1363 /* go thru NPR list, issue ELS PLOGIs */
1364 if (vport->fc_npr_cnt)
1365 lpfc_els_disc_plogi(vport);
1366
1367 if (!vport->num_disc_nodes) {
1368 spin_lock_irq(shost->host_lock);
1369 vport->fc_flag &=
1370 ~FC_NDISC_ACTIVE;
1371 spin_unlock_irq(
1372 shost->host_lock);
1373 lpfc_can_disctmo(vport);
1374 }
1375 }
1376 vport->port_state = LPFC_VPORT_READY;
1377 } else {
1378 lpfc_rscn_disc(vport);
1379 }
1380 }
1381 }
1382out: 1752out:
1383 lpfc_els_free_iocb(phba, cmdiocb); 1753 lpfc_els_free_iocb(phba, cmdiocb);
1384 return; 1754 return;
1385} 1755}
1386 1756
1757/**
1758 * lpfc_issue_els_adisc: Issue an address discover iocb to an node on a vport.
1759 * @vport: pointer to a virtual N_Port data structure.
1760 * @ndlp: pointer to a node-list data structure.
1761 * @retry: number of retries to the command IOCB.
1762 *
1763 * This routine issues an Address Discover (ADISC) for an @ndlp on a
1764 * @vport. It prepares the payload of the ADISC ELS command, updates the
1765 * and states of the ndlp, and invokes the lpfc_sli_issue_iocb() routine
1766 * to issue the ADISC ELS command.
1767 *
1768 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1769 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1770 * will be stored into the context1 field of the IOCB for the completion
1771 * callback function to the ADISC ELS command.
1772 *
1773 * Return code
1774 * 0 - successfully issued adisc
1775 * 1 - failed to issue adisc
1776 **/
1387int 1777int
1388lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1778lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1389 uint8_t retry) 1779 uint8_t retry)
@@ -1437,6 +1827,18 @@ lpfc_issue_els_adisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1437 return 0; 1827 return 0;
1438} 1828}
1439 1829
1830/**
1831 * lpfc_cmpl_els_logo: Completion callback function for logo.
1832 * @phba: pointer to lpfc hba data structure.
1833 * @cmdiocb: pointer to lpfc command iocb data structure.
1834 * @rspiocb: pointer to lpfc response iocb data structure.
1835 *
1836 * This routine is the completion function for issuing the ELS Logout (LOGO)
1837 * command. If no error status was reported from the LOGO response, the
1838 * state machine of the associated ndlp shall be invoked for transition with
1839 * respect to NLP_EVT_CMPL_LOGO event. Otherwise, if error status was reported,
1840 * the lpfc_els_retry() routine will be invoked to retry the LOGO command.
1841 **/
1440static void 1842static void
1441lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 1843lpfc_cmpl_els_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1442 struct lpfc_iocbq *rspiocb) 1844 struct lpfc_iocbq *rspiocb)
@@ -1502,6 +1904,26 @@ out:
1502 return; 1904 return;
1503} 1905}
1504 1906
1907/**
1908 * lpfc_issue_els_logo: Issue a logo to an node on a vport.
1909 * @vport: pointer to a virtual N_Port data structure.
1910 * @ndlp: pointer to a node-list data structure.
1911 * @retry: number of retries to the command IOCB.
1912 *
1913 * This routine constructs and issues an ELS Logout (LOGO) iocb command
1914 * to a remote node, referred by an @ndlp on a @vport. It constructs the
1915 * payload of the IOCB, properly sets up the @ndlp state, and invokes the
1916 * lpfc_sli_issue_iocb() routine to send out the LOGO ELS command.
1917 *
1918 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
1919 * will be incremented by 1 for holding the ndlp and the reference to ndlp
1920 * will be stored into the context1 field of the IOCB for the completion
1921 * callback function to the LOGO ELS command.
1922 *
1923 * Return code
1924 * 0 - successfully issued logo
1925 * 1 - failed to issue logo
1926 **/
1505int 1927int
1506lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1928lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1507 uint8_t retry) 1929 uint8_t retry)
@@ -1563,6 +1985,22 @@ lpfc_issue_els_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1563 return 0; 1985 return 0;
1564} 1986}
1565 1987
1988/**
1989 * lpfc_cmpl_els_cmd: Completion callback function for generic els command.
1990 * @phba: pointer to lpfc hba data structure.
1991 * @cmdiocb: pointer to lpfc command iocb data structure.
1992 * @rspiocb: pointer to lpfc response iocb data structure.
1993 *
1994 * This routine is a generic completion callback function for ELS commands.
1995 * Specifically, it is the callback function which does not need to perform
1996 * any command specific operations. It is currently used by the ELS command
1997 * issuing routines for the ELS State Change Request (SCR),
1998 * lpfc_issue_els_scr(), and the ELS Fibre Channel Address Resolution
1999 * Protocol Response (FARPR) routine, lpfc_issue_els_farpr(). Other than
2000 * certain debug loggings, this callback function simply invokes the
2001 * lpfc_els_chk_latt() routine to check whether link went down during the
2002 * discovery process.
2003 **/
1566static void 2004static void
1567lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2005lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1568 struct lpfc_iocbq *rspiocb) 2006 struct lpfc_iocbq *rspiocb)
@@ -1587,6 +2025,28 @@ lpfc_cmpl_els_cmd(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1587 return; 2025 return;
1588} 2026}
1589 2027
2028/**
2029 * lpfc_issue_els_scr: Issue a scr to an node on a vport.
2030 * @vport: pointer to a host virtual N_Port data structure.
2031 * @nportid: N_Port identifier to the remote node.
2032 * @retry: number of retries to the command IOCB.
2033 *
2034 * This routine issues a State Change Request (SCR) to a fabric node
2035 * on a @vport. The remote node @nportid is passed into the function. It
2036 * first search the @vport node list to find the matching ndlp. If no such
2037 * ndlp is found, a new ndlp shall be created for this (SCR) purpose. An
2038 * IOCB is allocated, payload prepared, and the lpfc_sli_issue_iocb()
2039 * routine is invoked to send the SCR IOCB.
2040 *
2041 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2042 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2043 * will be stored into the context1 field of the IOCB for the completion
2044 * callback function to the SCR ELS command.
2045 *
2046 * Return code
2047 * 0 - Successfully issued scr command
2048 * 1 - Failed to issue scr command
2049 **/
1590int 2050int
1591lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) 2051lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
1592{ 2052{
@@ -1659,6 +2119,28 @@ lpfc_issue_els_scr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
1659 return 0; 2119 return 0;
1660} 2120}
1661 2121
2122/**
2123 * lpfc_issue_els_farpr: Issue a farp to an node on a vport.
2124 * @vport: pointer to a host virtual N_Port data structure.
2125 * @nportid: N_Port identifier to the remote node.
2126 * @retry: number of retries to the command IOCB.
2127 *
2128 * This routine issues a Fibre Channel Address Resolution Response
2129 * (FARPR) to a node on a vport. The remote node N_Port identifier (@nportid)
2130 * is passed into the function. It first search the @vport node list to find
2131 * the matching ndlp. If no such ndlp is found, a new ndlp shall be created
2132 * for this (FARPR) purpose. An IOCB is allocated, payload prepared, and the
2133 * lpfc_sli_issue_iocb() routine is invoked to send the FARPR ELS command.
2134 *
2135 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
2136 * will be incremented by 1 for holding the ndlp and the reference to ndlp
2137 * will be stored into the context1 field of the IOCB for the completion
2138 * callback function to the PARPR ELS command.
2139 *
2140 * Return code
2141 * 0 - Successfully issued farpr command
2142 * 1 - Failed to issue farpr command
2143 **/
1662static int 2144static int
1663lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry) 2145lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
1664{ 2146{
@@ -1748,6 +2230,18 @@ lpfc_issue_els_farpr(struct lpfc_vport *vport, uint32_t nportid, uint8_t retry)
1748 return 0; 2230 return 0;
1749} 2231}
1750 2232
2233/**
2234 * lpfc_cancel_retry_delay_tmo: Cancel the timer with delayed iocb-cmd retry.
2235 * @vport: pointer to a host virtual N_Port data structure.
2236 * @nlp: pointer to a node-list data structure.
2237 *
2238 * This routine cancels the timer with a delayed IOCB-command retry for
2239 * a @vport's @ndlp. It stops the timer for the delayed function retrial and
2240 * removes the ELS retry event if it presents. In addition, if the
2241 * NLP_NPR_2B_DISC bit is set in the @nlp's nlp_flag bitmap, ADISC IOCB
2242 * commands are sent for the @vport's nodes that require issuing discovery
2243 * ADISC.
2244 **/
1751void 2245void
1752lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp) 2246lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
1753{ 2247{
@@ -1775,25 +2269,36 @@ lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
1775 if (vport->port_state < LPFC_VPORT_READY) { 2269 if (vport->port_state < LPFC_VPORT_READY) {
1776 /* Check if there are more ADISCs to be sent */ 2270 /* Check if there are more ADISCs to be sent */
1777 lpfc_more_adisc(vport); 2271 lpfc_more_adisc(vport);
1778 if ((vport->num_disc_nodes == 0) &&
1779 (vport->fc_npr_cnt))
1780 lpfc_els_disc_plogi(vport);
1781 } else { 2272 } else {
1782 /* Check if there are more PLOGIs to be sent */ 2273 /* Check if there are more PLOGIs to be sent */
1783 lpfc_more_plogi(vport); 2274 lpfc_more_plogi(vport);
1784 } 2275 if (vport->num_disc_nodes == 0) {
1785 if (vport->num_disc_nodes == 0) { 2276 spin_lock_irq(shost->host_lock);
1786 spin_lock_irq(shost->host_lock); 2277 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1787 vport->fc_flag &= ~FC_NDISC_ACTIVE; 2278 spin_unlock_irq(shost->host_lock);
1788 spin_unlock_irq(shost->host_lock); 2279 lpfc_can_disctmo(vport);
1789 lpfc_can_disctmo(vport); 2280 lpfc_end_rscn(vport);
1790 lpfc_end_rscn(vport); 2281 }
1791 } 2282 }
1792 } 2283 }
1793 } 2284 }
1794 return; 2285 return;
1795} 2286}
1796 2287
2288/**
2289 * lpfc_els_retry_delay: Timer function with a ndlp delayed function timer.
2290 * @ptr: holder for the pointer to the timer function associated data (ndlp).
2291 *
2292 * This routine is invoked by the ndlp delayed-function timer to check
2293 * whether there is any pending ELS retry event(s) with the node. If not, it
2294 * simply returns. Otherwise, if there is at least one ELS delayed event, it
2295 * adds the delayed events to the HBA work list and invokes the
2296 * lpfc_worker_wake_up() routine to wake up worker thread to process the
2297 * event. Note that lpfc_nlp_get() is called before posting the event to
2298 * the work list to hold reference count of ndlp so that it guarantees the
2299 * reference to ndlp will still be available when the worker thread gets
2300 * to the event associated with the ndlp.
2301 **/
1797void 2302void
1798lpfc_els_retry_delay(unsigned long ptr) 2303lpfc_els_retry_delay(unsigned long ptr)
1799{ 2304{
@@ -1822,6 +2327,15 @@ lpfc_els_retry_delay(unsigned long ptr)
1822 return; 2327 return;
1823} 2328}
1824 2329
2330/**
2331 * lpfc_els_retry_delay_handler: Work thread handler for ndlp delayed function.
2332 * @ndlp: pointer to a node-list data structure.
2333 *
2334 * This routine is the worker-thread handler for processing the @ndlp delayed
2335 * event(s), posted by the lpfc_els_retry_delay() routine. It simply retrieves
2336 * the last ELS command from the associated ndlp and invokes the proper ELS
2337 * function according to the delayed ELS command to retry the command.
2338 **/
1825void 2339void
1826lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp) 2340lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
1827{ 2341{
@@ -1884,6 +2398,27 @@ lpfc_els_retry_delay_handler(struct lpfc_nodelist *ndlp)
1884 return; 2398 return;
1885} 2399}
1886 2400
2401/**
2402 * lpfc_els_retry: Make retry decision on an els command iocb.
2403 * @phba: pointer to lpfc hba data structure.
2404 * @cmdiocb: pointer to lpfc command iocb data structure.
2405 * @rspiocb: pointer to lpfc response iocb data structure.
2406 *
2407 * This routine makes a retry decision on an ELS command IOCB, which has
2408 * failed. The following ELS IOCBs use this function for retrying the command
2409 * when previously issued command responsed with error status: FLOGI, PLOGI,
2410 * PRLI, ADISC, LOGO, and FDISC. Based on the ELS command type and the
2411 * returned error status, it makes the decision whether a retry shall be
2412 * issued for the command, and whether a retry shall be made immediately or
2413 * delayed. In the former case, the corresponding ELS command issuing-function
2414 * is called to retry the command. In the later case, the ELS command shall
2415 * be posted to the ndlp delayed event and delayed function timer set to the
2416 * ndlp for the delayed command issusing.
2417 *
2418 * Return code
2419 * 0 - No retry of els command is made
2420 * 1 - Immediate or delayed retry of els command is made
2421 **/
1887static int 2422static int
1888lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2423lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
1889 struct lpfc_iocbq *rspiocb) 2424 struct lpfc_iocbq *rspiocb)
@@ -2051,7 +2586,7 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2051 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID)) 2586 (stat.un.b.lsRjtRsnCodeExp == LSEXP_INVALID_NPORT_ID))
2052 ) { 2587 ) {
2053 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 2588 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
2054 "0123 FDISC Failed (x%x). " 2589 "0122 FDISC Failed (x%x). "
2055 "Fabric Detected Bad WWN\n", 2590 "Fabric Detected Bad WWN\n",
2056 stat.un.lsRjtError); 2591 stat.un.lsRjtError);
2057 lpfc_vport_set_state(vport, 2592 lpfc_vport_set_state(vport,
@@ -2182,12 +2717,26 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2182 return 0; 2717 return 0;
2183} 2718}
2184 2719
2720/**
2721 * lpfc_els_free_data: Free lpfc dma buffer and data structure with an iocb.
2722 * @phba: pointer to lpfc hba data structure.
2723 * @buf_ptr1: pointer to the lpfc DMA buffer data structure.
2724 *
2725 * This routine releases the lpfc DMA (Direct Memory Access) buffer(s)
2726 * associated with a command IOCB back to the lpfc DMA buffer pool. It first
2727 * checks to see whether there is a lpfc DMA buffer associated with the
2728 * response of the command IOCB. If so, it will be released before releasing
2729 * the lpfc DMA buffer associated with the IOCB itself.
2730 *
2731 * Return code
2732 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
2733 **/
2185static int 2734static int
2186lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1) 2735lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
2187{ 2736{
2188 struct lpfc_dmabuf *buf_ptr; 2737 struct lpfc_dmabuf *buf_ptr;
2189 2738
2190 /* Free the response before processing the command. */ 2739 /* Free the response before processing the command. */
2191 if (!list_empty(&buf_ptr1->list)) { 2740 if (!list_empty(&buf_ptr1->list)) {
2192 list_remove_head(&buf_ptr1->list, buf_ptr, 2741 list_remove_head(&buf_ptr1->list, buf_ptr,
2193 struct lpfc_dmabuf, 2742 struct lpfc_dmabuf,
@@ -2200,6 +2749,18 @@ lpfc_els_free_data(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr1)
2200 return 0; 2749 return 0;
2201} 2750}
2202 2751
2752/**
2753 * lpfc_els_free_bpl: Free lpfc dma buffer and data structure with bpl.
2754 * @phba: pointer to lpfc hba data structure.
2755 * @buf_ptr: pointer to the lpfc dma buffer data structure.
2756 *
2757 * This routine releases the lpfc Direct Memory Access (DMA) buffer
2758 * associated with a Buffer Pointer List (BPL) back to the lpfc DMA buffer
2759 * pool.
2760 *
2761 * Return code
2762 * 0 - Successfully released lpfc DMA buffer (currently, always return 0)
2763 **/
2203static int 2764static int
2204lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr) 2765lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
2205{ 2766{
@@ -2208,6 +2769,33 @@ lpfc_els_free_bpl(struct lpfc_hba *phba, struct lpfc_dmabuf *buf_ptr)
2208 return 0; 2769 return 0;
2209} 2770}
2210 2771
2772/**
2773 * lpfc_els_free_iocb: Free a command iocb and its associated resources.
2774 * @phba: pointer to lpfc hba data structure.
2775 * @elsiocb: pointer to lpfc els command iocb data structure.
2776 *
2777 * This routine frees a command IOCB and its associated resources. The
2778 * command IOCB data structure contains the reference to various associated
2779 * resources, these fields must be set to NULL if the associated reference
2780 * not present:
2781 * context1 - reference to ndlp
2782 * context2 - reference to cmd
2783 * context2->next - reference to rsp
2784 * context3 - reference to bpl
2785 *
2786 * It first properly decrements the reference count held on ndlp for the
2787 * IOCB completion callback function. If LPFC_DELAY_MEM_FREE flag is not
2788 * set, it invokes the lpfc_els_free_data() routine to release the Direct
2789 * Memory Access (DMA) buffers associated with the IOCB. Otherwise, it
2790 * adds the DMA buffer the @phba data structure for the delayed release.
2791 * If reference to the Buffer Pointer List (BPL) is present, the
2792 * lpfc_els_free_bpl() routine is invoked to release the DMA memory
2793 * associated with BPL. Finally, the lpfc_sli_release_iocbq() routine is
2794 * invoked to release the IOCB data structure back to @phba IOCBQ list.
2795 *
2796 * Return code
2797 * 0 - Success (currently, always return 0)
2798 **/
2211int 2799int
2212lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb) 2800lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
2213{ 2801{
@@ -2274,6 +2862,23 @@ lpfc_els_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *elsiocb)
2274 return 0; 2862 return 0;
2275} 2863}
2276 2864
2865/**
2866 * lpfc_cmpl_els_logo_acc: Completion callback function to logo acc response.
2867 * @phba: pointer to lpfc hba data structure.
2868 * @cmdiocb: pointer to lpfc command iocb data structure.
2869 * @rspiocb: pointer to lpfc response iocb data structure.
2870 *
2871 * This routine is the completion callback function to the Logout (LOGO)
2872 * Accept (ACC) Response ELS command. This routine is invoked to indicate
2873 * the completion of the LOGO process. It invokes the lpfc_nlp_not_used() to
2874 * release the ndlp if it has the last reference remaining (reference count
2875 * is 1). If succeeded (meaning ndlp released), it sets the IOCB context1
2876 * field to NULL to inform the following lpfc_els_free_iocb() routine no
2877 * ndlp reference count needs to be decremented. Otherwise, the ndlp
2878 * reference use-count shall be decremented by the lpfc_els_free_iocb()
2879 * routine. Finally, the lpfc_els_free_iocb() is invoked to release the
2880 * IOCB data structure.
2881 **/
2277static void 2882static void
2278lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2883lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2279 struct lpfc_iocbq *rspiocb) 2884 struct lpfc_iocbq *rspiocb)
@@ -2311,6 +2916,19 @@ lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2311 return; 2916 return;
2312} 2917}
2313 2918
2919/**
2920 * lpfc_mbx_cmpl_dflt_rpi: Completion callbk func for unreg dflt rpi mbox cmd.
2921 * @phba: pointer to lpfc hba data structure.
2922 * @pmb: pointer to the driver internal queue element for mailbox command.
2923 *
2924 * This routine is the completion callback function for unregister default
2925 * RPI (Remote Port Index) mailbox command to the @phba. It simply releases
2926 * the associated lpfc Direct Memory Access (DMA) buffer back to the pool and
2927 * decrements the ndlp reference count held for this completion callback
2928 * function. After that, it invokes the lpfc_nlp_not_used() to check
2929 * whether there is only one reference left on the ndlp. If so, it will
2930 * perform one more decrement and trigger the release of the ndlp.
2931 **/
2314void 2932void
2315lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 2933lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2316{ 2934{
@@ -2332,6 +2950,22 @@ lpfc_mbx_cmpl_dflt_rpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2332 return; 2950 return;
2333} 2951}
2334 2952
2953/**
2954 * lpfc_cmpl_els_rsp: Completion callback function for els response iocb cmd.
2955 * @phba: pointer to lpfc hba data structure.
2956 * @cmdiocb: pointer to lpfc command iocb data structure.
2957 * @rspiocb: pointer to lpfc response iocb data structure.
2958 *
2959 * This routine is the completion callback function for ELS Response IOCB
2960 * command. In normal case, this callback function just properly sets the
2961 * nlp_flag bitmap in the ndlp data structure, if the mbox command reference
2962 * field in the command IOCB is not NULL, the referred mailbox command will
2963 * be send out, and then invokes the lpfc_els_free_iocb() routine to release
2964 * the IOCB. Under error conditions, such as when a LS_RJT is returned or a
2965 * link down event occurred during the discovery, the lpfc_nlp_not_used()
2966 * routine shall be invoked trying to release the ndlp if no other threads
2967 * are currently referring it.
2968 **/
2335static void 2969static void
2336lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 2970lpfc_cmpl_els_rsp(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
2337 struct lpfc_iocbq *rspiocb) 2971 struct lpfc_iocbq *rspiocb)
@@ -2487,6 +3121,31 @@ out:
2487 return; 3121 return;
2488} 3122}
2489 3123
3124/**
3125 * lpfc_els_rsp_acc: Prepare and issue an acc response iocb command.
3126 * @vport: pointer to a host virtual N_Port data structure.
3127 * @flag: the els command code to be accepted.
3128 * @oldiocb: pointer to the original lpfc command iocb data structure.
3129 * @ndlp: pointer to a node-list data structure.
3130 * @mbox: pointer to the driver internal queue element for mailbox command.
3131 *
3132 * This routine prepares and issues an Accept (ACC) response IOCB
3133 * command. It uses the @flag to properly set up the IOCB field for the
3134 * specific ACC response command to be issued and invokes the
3135 * lpfc_sli_issue_iocb() routine to send out ACC response IOCB. If a
3136 * @mbox pointer is passed in, it will be put into the context_un.mbox
3137 * field of the IOCB for the completion callback function to issue the
3138 * mailbox command to the HBA later when callback is invoked.
3139 *
3140 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3141 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3142 * will be stored into the context1 field of the IOCB for the completion
3143 * callback function to the corresponding response ELS IOCB command.
3144 *
3145 * Return code
3146 * 0 - Successfully issued acc response
3147 * 1 - Failed to issue acc response
3148 **/
2490int 3149int
2491lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag, 3150lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
2492 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, 3151 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
@@ -2601,6 +3260,28 @@ lpfc_els_rsp_acc(struct lpfc_vport *vport, uint32_t flag,
2601 return 0; 3260 return 0;
2602} 3261}
2603 3262
3263/**
3264 * lpfc_els_rsp_reject: Propare and issue a rjt response iocb command.
3265 * @vport: pointer to a virtual N_Port data structure.
3266 * @rejectError:
3267 * @oldiocb: pointer to the original lpfc command iocb data structure.
3268 * @ndlp: pointer to a node-list data structure.
3269 * @mbox: pointer to the driver internal queue element for mailbox command.
3270 *
3271 * This routine prepares and issue an Reject (RJT) response IOCB
3272 * command. If a @mbox pointer is passed in, it will be put into the
3273 * context_un.mbox field of the IOCB for the completion callback function
3274 * to issue to the HBA later.
3275 *
3276 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3277 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3278 * will be stored into the context1 field of the IOCB for the completion
3279 * callback function to the reject response ELS IOCB command.
3280 *
3281 * Return code
3282 * 0 - Successfully issued reject response
3283 * 1 - Failed to issue reject response
3284 **/
2604int 3285int
2605lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError, 3286lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
2606 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp, 3287 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp,
@@ -2660,6 +3341,25 @@ lpfc_els_rsp_reject(struct lpfc_vport *vport, uint32_t rejectError,
2660 return 0; 3341 return 0;
2661} 3342}
2662 3343
3344/**
3345 * lpfc_els_rsp_adisc_acc: Prepare and issue acc response to adisc iocb cmd.
3346 * @vport: pointer to a virtual N_Port data structure.
3347 * @oldiocb: pointer to the original lpfc command iocb data structure.
3348 * @ndlp: pointer to a node-list data structure.
3349 *
3350 * This routine prepares and issues an Accept (ACC) response to Address
3351 * Discover (ADISC) ELS command. It simply prepares the payload of the IOCB
3352 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
3353 *
3354 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3355 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3356 * will be stored into the context1 field of the IOCB for the completion
3357 * callback function to the ADISC Accept response ELS IOCB command.
3358 *
3359 * Return code
3360 * 0 - Successfully issued acc adisc response
3361 * 1 - Failed to issue adisc acc response
3362 **/
2663int 3363int
2664lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, 3364lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
2665 struct lpfc_nodelist *ndlp) 3365 struct lpfc_nodelist *ndlp)
@@ -2716,6 +3416,25 @@ lpfc_els_rsp_adisc_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
2716 return 0; 3416 return 0;
2717} 3417}
2718 3418
3419/**
3420 * lpfc_els_rsp_prli_acc: Prepare and issue acc response to prli iocb cmd.
3421 * @vport: pointer to a virtual N_Port data structure.
3422 * @oldiocb: pointer to the original lpfc command iocb data structure.
3423 * @ndlp: pointer to a node-list data structure.
3424 *
3425 * This routine prepares and issues an Accept (ACC) response to Process
3426 * Login (PRLI) ELS command. It simply prepares the payload of the IOCB
3427 * and invokes the lpfc_sli_issue_iocb() routine to send out the command.
3428 *
3429 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3430 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3431 * will be stored into the context1 field of the IOCB for the completion
3432 * callback function to the PRLI Accept response ELS IOCB command.
3433 *
3434 * Return code
3435 * 0 - Successfully issued acc prli response
3436 * 1 - Failed to issue acc prli response
3437 **/
2719int 3438int
2720lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb, 3439lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
2721 struct lpfc_nodelist *ndlp) 3440 struct lpfc_nodelist *ndlp)
@@ -2795,6 +3514,32 @@ lpfc_els_rsp_prli_acc(struct lpfc_vport *vport, struct lpfc_iocbq *oldiocb,
2795 return 0; 3514 return 0;
2796} 3515}
2797 3516
3517/**
3518 * lpfc_els_rsp_rnid_acc: Issue rnid acc response iocb command.
3519 * @vport: pointer to a virtual N_Port data structure.
3520 * @format: rnid command format.
3521 * @oldiocb: pointer to the original lpfc command iocb data structure.
3522 * @ndlp: pointer to a node-list data structure.
3523 *
3524 * This routine issues a Request Node Identification Data (RNID) Accept
3525 * (ACC) response. It constructs the RNID ACC response command according to
3526 * the proper @format and then calls the lpfc_sli_issue_iocb() routine to
3527 * issue the response. Note that this command does not need to hold the ndlp
3528 * reference count for the callback. So, the ndlp reference count taken by
3529 * the lpfc_prep_els_iocb() routine is put back and the context1 field of
3530 * IOCB is set to NULL to indicate to the lpfc_els_free_iocb() routine that
3531 * there is no ndlp reference available.
3532 *
3533 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
3534 * will be incremented by 1 for holding the ndlp and the reference to ndlp
3535 * will be stored into the context1 field of the IOCB for the completion
3536 * callback function. However, for the RNID Accept Response ELS command,
3537 * this is undone later by this routine after the IOCB is allocated.
3538 *
3539 * Return code
3540 * 0 - Successfully issued acc rnid response
3541 * 1 - Failed to issue acc rnid response
3542 **/
2798static int 3543static int
2799lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format, 3544lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
2800 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 3545 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
@@ -2875,6 +3620,25 @@ lpfc_els_rsp_rnid_acc(struct lpfc_vport *vport, uint8_t format,
2875 return 0; 3620 return 0;
2876} 3621}
2877 3622
3623/**
3624 * lpfc_els_disc_adisc: Issue remaining adisc iocbs to npr nodes of a vport.
3625 * @vport: pointer to a host virtual N_Port data structure.
3626 *
3627 * This routine issues Address Discover (ADISC) ELS commands to those
3628 * N_Ports which are in node port recovery state and ADISC has not been issued
3629 * for the @vport. Each time an ELS ADISC IOCB is issued by invoking the
3630 * lpfc_issue_els_adisc() routine, the per @vport number of discover count
3631 * (num_disc_nodes) shall be incremented. If the num_disc_nodes reaches a
3632 * pre-configured threshold (cfg_discovery_threads), the @vport fc_flag will
3633 * be marked with FC_NLP_MORE bit and the process of issuing remaining ADISC
3634 * IOCBs quit for later pick up. On the other hand, after walking through
3635 * all the ndlps with the @vport and there is none ADISC IOCB issued, the
3636 * @vport fc_flag shall be cleared with FC_NLP_MORE bit indicating there is
3637 * no more ADISC need to be sent.
3638 *
3639 * Return code
3640 * The number of N_Ports with adisc issued.
3641 **/
2878int 3642int
2879lpfc_els_disc_adisc(struct lpfc_vport *vport) 3643lpfc_els_disc_adisc(struct lpfc_vport *vport)
2880{ 3644{
@@ -2914,6 +3678,25 @@ lpfc_els_disc_adisc(struct lpfc_vport *vport)
2914 return sentadisc; 3678 return sentadisc;
2915} 3679}
2916 3680
3681/**
3682 * lpfc_els_disc_plogi: Issue plogi for all npr nodes of a vport before adisc.
3683 * @vport: pointer to a host virtual N_Port data structure.
3684 *
3685 * This routine issues Port Login (PLOGI) ELS commands to all the N_Ports
3686 * which are in node port recovery state, with a @vport. Each time an ELS
3687 * ADISC PLOGI IOCB is issued by invoking the lpfc_issue_els_plogi() routine,
3688 * the per @vport number of discover count (num_disc_nodes) shall be
3689 * incremented. If the num_disc_nodes reaches a pre-configured threshold
3690 * (cfg_discovery_threads), the @vport fc_flag will be marked with FC_NLP_MORE
3691 * bit set and quit the process of issuing remaining ADISC PLOGIN IOCBs for
3692 * later pick up. On the other hand, after walking through all the ndlps with
3693 * the @vport and there is none ADISC PLOGI IOCB issued, the @vport fc_flag
3694 * shall be cleared with the FC_NLP_MORE bit indicating there is no more ADISC
3695 * PLOGI need to be sent.
3696 *
3697 * Return code
3698 * The number of N_Ports with plogi issued.
3699 **/
2917int 3700int
2918lpfc_els_disc_plogi(struct lpfc_vport *vport) 3701lpfc_els_disc_plogi(struct lpfc_vport *vport)
2919{ 3702{
@@ -2954,6 +3737,15 @@ lpfc_els_disc_plogi(struct lpfc_vport *vport)
2954 return sentplogi; 3737 return sentplogi;
2955} 3738}
2956 3739
3740/**
3741 * lpfc_els_flush_rscn: Clean up any rscn activities with a vport.
3742 * @vport: pointer to a host virtual N_Port data structure.
3743 *
3744 * This routine cleans up any Registration State Change Notification
3745 * (RSCN) activity with a @vport. Note that the fc_rscn_flush flag of the
3746 * @vport together with the host_lock is used to prevent multiple thread
3747 * trying to access the RSCN array on a same @vport at the same time.
3748 **/
2957void 3749void
2958lpfc_els_flush_rscn(struct lpfc_vport *vport) 3750lpfc_els_flush_rscn(struct lpfc_vport *vport)
2959{ 3751{
@@ -2984,6 +3776,18 @@ lpfc_els_flush_rscn(struct lpfc_vport *vport)
2984 vport->fc_rscn_flush = 0; 3776 vport->fc_rscn_flush = 0;
2985} 3777}
2986 3778
3779/**
3780 * lpfc_rscn_payload_check: Check whether there is a pending rscn to a did.
3781 * @vport: pointer to a host virtual N_Port data structure.
3782 * @did: remote destination port identifier.
3783 *
3784 * This routine checks whether there is any pending Registration State
3785 * Configuration Notification (RSCN) to a @did on @vport.
3786 *
3787 * Return code
3788 * None zero - The @did matched with a pending rscn
3789 * 0 - not able to match @did with a pending rscn
3790 **/
2987int 3791int
2988lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did) 3792lpfc_rscn_payload_check(struct lpfc_vport *vport, uint32_t did)
2989{ 3793{
@@ -3053,6 +3857,17 @@ return_did_out:
3053 return did; 3857 return did;
3054} 3858}
3055 3859
3860/**
3861 * lpfc_rscn_recovery_check: Send recovery event to vport nodes matching rscn
3862 * @vport: pointer to a host virtual N_Port data structure.
3863 *
3864 * This routine sends recovery (NLP_EVT_DEVICE_RECOVERY) event to the
3865 * state machine for a @vport's nodes that are with pending RSCN (Registration
3866 * State Change Notification).
3867 *
3868 * Return code
3869 * 0 - Successful (currently alway return 0)
3870 **/
3056static int 3871static int
3057lpfc_rscn_recovery_check(struct lpfc_vport *vport) 3872lpfc_rscn_recovery_check(struct lpfc_vport *vport)
3058{ 3873{
@@ -3071,6 +3886,28 @@ lpfc_rscn_recovery_check(struct lpfc_vport *vport)
3071 return 0; 3886 return 0;
3072} 3887}
3073 3888
3889/**
3890 * lpfc_els_rcv_rscn: Process an unsolicited rscn iocb.
3891 * @vport: pointer to a host virtual N_Port data structure.
3892 * @cmdiocb: pointer to lpfc command iocb data structure.
3893 * @ndlp: pointer to a node-list data structure.
3894 *
3895 * This routine processes an unsolicited RSCN (Registration State Change
3896 * Notification) IOCB. First, the payload of the unsolicited RSCN is walked
3897 * to invoke fc_host_post_event() routine to the FC transport layer. If the
3898 * discover state machine is about to begin discovery, it just accepts the
3899 * RSCN and the discovery process will satisfy the RSCN. If this RSCN only
3900 * contains N_Port IDs for other vports on this HBA, it just accepts the
3901 * RSCN and ignore processing it. If the state machine is in the recovery
3902 * state, the fc_rscn_id_list of this @vport is walked and the
3903 * lpfc_rscn_recovery_check() routine is invoked to send recovery event for
3904 * all nodes that match RSCN payload. Otherwise, the lpfc_els_handle_rscn()
3905 * routine is invoked to handle the RSCN event.
3906 *
3907 * Return code
3908 * 0 - Just sent the acc response
3909 * 1 - Sent the acc response and waited for name server completion
3910 **/
3074static int 3911static int
3075lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 3912lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3076 struct lpfc_nodelist *ndlp) 3913 struct lpfc_nodelist *ndlp)
@@ -3130,7 +3967,7 @@ lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3130 if (rscn_id == hba_id) { 3967 if (rscn_id == hba_id) {
3131 /* ALL NPortIDs in RSCN are on HBA */ 3968 /* ALL NPortIDs in RSCN are on HBA */
3132 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 3969 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
3133 "0214 Ignore RSCN " 3970 "0219 Ignore RSCN "
3134 "Data: x%x x%x x%x x%x\n", 3971 "Data: x%x x%x x%x x%x\n",
3135 vport->fc_flag, payload_len, 3972 vport->fc_flag, payload_len,
3136 *lp, vport->fc_rscn_id_cnt); 3973 *lp, vport->fc_rscn_id_cnt);
@@ -3241,6 +4078,22 @@ lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3241 return lpfc_els_handle_rscn(vport); 4078 return lpfc_els_handle_rscn(vport);
3242} 4079}
3243 4080
4081/**
4082 * lpfc_els_handle_rscn: Handle rscn for a vport.
4083 * @vport: pointer to a host virtual N_Port data structure.
4084 *
4085 * This routine handles the Registration State Configuration Notification
4086 * (RSCN) for a @vport. If login to NameServer does not exist, a new ndlp shall
4087 * be created and a Port Login (PLOGI) to the NameServer is issued. Otherwise,
4088 * if the ndlp to NameServer exists, a Common Transport (CT) command to the
4089 * NameServer shall be issued. If CT command to the NameServer fails to be
4090 * issued, the lpfc_els_flush_rscn() routine shall be invoked to clean up any
4091 * RSCN activities with the @vport.
4092 *
4093 * Return code
4094 * 0 - Cleaned up rscn on the @vport
4095 * 1 - Wait for plogi to name server before proceed
4096 **/
3244int 4097int
3245lpfc_els_handle_rscn(struct lpfc_vport *vport) 4098lpfc_els_handle_rscn(struct lpfc_vport *vport)
3246{ 4099{
@@ -3313,6 +4166,31 @@ lpfc_els_handle_rscn(struct lpfc_vport *vport)
3313 return 0; 4166 return 0;
3314} 4167}
3315 4168
4169/**
4170 * lpfc_els_rcv_flogi: Process an unsolicited flogi iocb.
4171 * @vport: pointer to a host virtual N_Port data structure.
4172 * @cmdiocb: pointer to lpfc command iocb data structure.
4173 * @ndlp: pointer to a node-list data structure.
4174 *
4175 * This routine processes Fabric Login (FLOGI) IOCB received as an ELS
4176 * unsolicited event. An unsolicited FLOGI can be received in a point-to-
4177 * point topology. As an unsolicited FLOGI should not be received in a loop
4178 * mode, any unsolicited FLOGI received in loop mode shall be ignored. The
4179 * lpfc_check_sparm() routine is invoked to check the parameters in the
4180 * unsolicited FLOGI. If parameters validation failed, the routine
4181 * lpfc_els_rsp_reject() shall be called with reject reason code set to
4182 * LSEXP_SPARM_OPTIONS to reject the FLOGI. Otherwise, the Port WWN in the
4183 * FLOGI shall be compared with the Port WWN of the @vport to determine who
4184 * will initiate PLOGI. The higher lexicographical value party shall has
4185 * higher priority (as the winning port) and will initiate PLOGI and
4186 * communicate Port_IDs (Addresses) for both nodes in PLOGI. The result
4187 * of this will be marked in the @vport fc_flag field with FC_PT2PT_PLOGI
4188 * and then the lpfc_els_rsp_acc() routine is invoked to accept the FLOGI.
4189 *
4190 * Return code
4191 * 0 - Successfully processed the unsolicited flogi
4192 * 1 - Failed to process the unsolicited flogi
4193 **/
3316static int 4194static int
3317lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 4195lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3318 struct lpfc_nodelist *ndlp) 4196 struct lpfc_nodelist *ndlp)
@@ -3402,6 +4280,22 @@ lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3402 return 0; 4280 return 0;
3403} 4281}
3404 4282
4283/**
4284 * lpfc_els_rcv_rnid: Process an unsolicited rnid iocb.
4285 * @vport: pointer to a host virtual N_Port data structure.
4286 * @cmdiocb: pointer to lpfc command iocb data structure.
4287 * @ndlp: pointer to a node-list data structure.
4288 *
4289 * This routine processes Request Node Identification Data (RNID) IOCB
4290 * received as an ELS unsolicited event. Only when the RNID specified format
4291 * 0x0 or 0xDF (Topology Discovery Specific Node Identification Data)
4292 * present, this routine will invoke the lpfc_els_rsp_rnid_acc() routine to
4293 * Accept (ACC) the RNID ELS command. All the other RNID formats are
4294 * rejected by invoking the lpfc_els_rsp_reject() routine.
4295 *
4296 * Return code
4297 * 0 - Successfully processed rnid iocb (currently always return 0)
4298 **/
3405static int 4299static int
3406lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 4300lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3407 struct lpfc_nodelist *ndlp) 4301 struct lpfc_nodelist *ndlp)
@@ -3441,6 +4335,19 @@ lpfc_els_rcv_rnid(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3441 return 0; 4335 return 0;
3442} 4336}
3443 4337
4338/**
4339 * lpfc_els_rcv_lirr: Process an unsolicited lirr iocb.
4340 * @vport: pointer to a host virtual N_Port data structure.
4341 * @cmdiocb: pointer to lpfc command iocb data structure.
4342 * @ndlp: pointer to a node-list data structure.
4343 *
4344 * This routine processes a Link Incident Report Registration(LIRR) IOCB
4345 * received as an ELS unsolicited event. Currently, this function just invokes
4346 * the lpfc_els_rsp_reject() routine to reject the LIRR IOCB unconditionally.
4347 *
4348 * Return code
4349 * 0 - Successfully processed lirr iocb (currently always return 0)
4350 **/
3444static int 4351static int
3445lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 4352lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3446 struct lpfc_nodelist *ndlp) 4353 struct lpfc_nodelist *ndlp)
@@ -3456,6 +4363,25 @@ lpfc_els_rcv_lirr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3456 return 0; 4363 return 0;
3457} 4364}
3458 4365
4366/**
4367 * lpfc_els_rsp_rps_acc: Completion callbk func for MBX_READ_LNK_STAT mbox cmd.
4368 * @phba: pointer to lpfc hba data structure.
4369 * @pmb: pointer to the driver internal queue element for mailbox command.
4370 *
4371 * This routine is the completion callback function for the MBX_READ_LNK_STAT
4372 * mailbox command. This callback function is to actually send the Accept
4373 * (ACC) response to a Read Port Status (RPS) unsolicited IOCB event. It
4374 * collects the link statistics from the completion of the MBX_READ_LNK_STAT
4375 * mailbox command, constructs the RPS response with the link statistics
4376 * collected, and then invokes the lpfc_sli_issue_iocb() routine to send ACC
4377 * response to the RPS.
4378 *
4379 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4380 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4381 * will be stored into the context1 field of the IOCB for the completion
4382 * callback function to the RPS Accept Response ELS IOCB command.
4383 *
4384 **/
3459static void 4385static void
3460lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 4386lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3461{ 4387{
@@ -3531,6 +4457,24 @@ lpfc_els_rsp_rps_acc(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
3531 return; 4457 return;
3532} 4458}
3533 4459
4460/**
4461 * lpfc_els_rcv_rps: Process an unsolicited rps iocb.
4462 * @vport: pointer to a host virtual N_Port data structure.
4463 * @cmdiocb: pointer to lpfc command iocb data structure.
4464 * @ndlp: pointer to a node-list data structure.
4465 *
4466 * This routine processes Read Port Status (RPS) IOCB received as an
4467 * ELS unsolicited event. It first checks the remote port state. If the
4468 * remote port is not in NLP_STE_UNMAPPED_NODE state or NLP_STE_MAPPED_NODE
4469 * state, it invokes the lpfc_els_rsp_reject() routine to send the reject
4470 * response. Otherwise, it issue the MBX_READ_LNK_STAT mailbox command
4471 * for reading the HBA link statistics. It is for the callback function,
4472 * lpfc_els_rsp_rps_acc(), set to the MBX_READ_LNK_STAT mailbox command
4473 * to actually sending out RPS Accept (ACC) response.
4474 *
4475 * Return codes
4476 * 0 - Successfully processed rps iocb (currently always return 0)
4477 **/
3534static int 4478static int
3535lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 4479lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3536 struct lpfc_nodelist *ndlp) 4480 struct lpfc_nodelist *ndlp)
@@ -3544,14 +4488,9 @@ lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3544 struct ls_rjt stat; 4488 struct ls_rjt stat;
3545 4489
3546 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 4490 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
3547 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { 4491 (ndlp->nlp_state != NLP_STE_MAPPED_NODE))
3548 stat.un.b.lsRjtRsvd0 = 0; 4492 /* reject the unsolicited RPS request and done with it */
3549 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 4493 goto reject_out;
3550 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
3551 stat.un.b.vendorUnique = 0;
3552 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
3553 NULL);
3554 }
3555 4494
3556 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 4495 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
3557 lp = (uint32_t *) pcmd->virt; 4496 lp = (uint32_t *) pcmd->virt;
@@ -3584,6 +4523,9 @@ lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3584 mempool_free(mbox, phba->mbox_mem_pool); 4523 mempool_free(mbox, phba->mbox_mem_pool);
3585 } 4524 }
3586 } 4525 }
4526
4527reject_out:
4528 /* issue rejection response */
3587 stat.un.b.lsRjtRsvd0 = 0; 4529 stat.un.b.lsRjtRsvd0 = 0;
3588 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 4530 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
3589 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 4531 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
@@ -3592,6 +4534,25 @@ lpfc_els_rcv_rps(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3592 return 0; 4534 return 0;
3593} 4535}
3594 4536
4537/**
4538 * lpfc_els_rsp_rpl_acc: Issue an accept rpl els command.
4539 * @vport: pointer to a host virtual N_Port data structure.
4540 * @cmdsize: size of the ELS command.
4541 * @oldiocb: pointer to the original lpfc command iocb data structure.
4542 * @ndlp: pointer to a node-list data structure.
4543 *
4544 * This routine issuees an Accept (ACC) Read Port List (RPL) ELS command.
4545 * It is to be called by the lpfc_els_rcv_rpl() routine to accept the RPL.
4546 *
4547 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
4548 * will be incremented by 1 for holding the ndlp and the reference to ndlp
4549 * will be stored into the context1 field of the IOCB for the completion
4550 * callback function to the RPL Accept Response ELS command.
4551 *
4552 * Return code
4553 * 0 - Successfully issued ACC RPL ELS command
4554 * 1 - Failed to issue ACC RPL ELS command
4555 **/
3595static int 4556static int
3596lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize, 4557lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
3597 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp) 4558 struct lpfc_iocbq *oldiocb, struct lpfc_nodelist *ndlp)
@@ -3645,6 +4606,22 @@ lpfc_els_rsp_rpl_acc(struct lpfc_vport *vport, uint16_t cmdsize,
3645 return 0; 4606 return 0;
3646} 4607}
3647 4608
4609/**
4610 * lpfc_els_rcv_rpl: Process an unsolicited rpl iocb.
4611 * @vport: pointer to a host virtual N_Port data structure.
4612 * @cmdiocb: pointer to lpfc command iocb data structure.
4613 * @ndlp: pointer to a node-list data structure.
4614 *
4615 * This routine processes Read Port List (RPL) IOCB received as an ELS
4616 * unsolicited event. It first checks the remote port state. If the remote
4617 * port is not in NLP_STE_UNMAPPED_NODE and NLP_STE_MAPPED_NODE states, it
4618 * invokes the lpfc_els_rsp_reject() routine to send reject response.
4619 * Otherwise, this routine then invokes the lpfc_els_rsp_rpl_acc() routine
4620 * to accept the RPL.
4621 *
4622 * Return code
4623 * 0 - Successfully processed rpl iocb (currently always return 0)
4624 **/
3648static int 4625static int
3649lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 4626lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3650 struct lpfc_nodelist *ndlp) 4627 struct lpfc_nodelist *ndlp)
@@ -3658,12 +4635,15 @@ lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3658 4635
3659 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && 4636 if ((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
3660 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) { 4637 (ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
4638 /* issue rejection response */
3661 stat.un.b.lsRjtRsvd0 = 0; 4639 stat.un.b.lsRjtRsvd0 = 0;
3662 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC; 4640 stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
3663 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA; 4641 stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
3664 stat.un.b.vendorUnique = 0; 4642 stat.un.b.vendorUnique = 0;
3665 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp, 4643 lpfc_els_rsp_reject(vport, stat.un.lsRjtError, cmdiocb, ndlp,
3666 NULL); 4644 NULL);
4645 /* rejected the unsolicited RPL request and done with it */
4646 return 0;
3667 } 4647 }
3668 4648
3669 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2; 4649 pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
@@ -3685,6 +4665,30 @@ lpfc_els_rcv_rpl(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3685 return 0; 4665 return 0;
3686} 4666}
3687 4667
4668/**
4669 * lpfc_els_rcv_farp: Process an unsolicited farp request els command.
4670 * @vport: pointer to a virtual N_Port data structure.
4671 * @cmdiocb: pointer to lpfc command iocb data structure.
4672 * @ndlp: pointer to a node-list data structure.
4673 *
4674 * This routine processes Fibre Channel Address Resolution Protocol
4675 * (FARP) Request IOCB received as an ELS unsolicited event. Currently,
4676 * the lpfc driver only supports matching on WWPN or WWNN for FARP. As such,
4677 * FARP_MATCH_PORT flag and FARP_MATCH_NODE flag are checked against the
4678 * Match Flag in the FARP request IOCB: if FARP_MATCH_PORT flag is set, the
4679 * remote PortName is compared against the FC PortName stored in the @vport
4680 * data structure; if FARP_MATCH_NODE flag is set, the remote NodeName is
4681 * compared against the FC NodeName stored in the @vport data structure.
4682 * If any of these matches and the FARP_REQUEST_FARPR flag is set in the
4683 * FARP request IOCB Response Flag, the lpfc_issue_els_farpr() routine is
4684 * invoked to send out FARP Response to the remote node. Before sending the
4685 * FARP Response, however, the FARP_REQUEST_PLOGI flag is check in the FARP
4686 * request IOCB Response Flag and, if it is set, the lpfc_issue_els_plogi()
4687 * routine is invoked to log into the remote port first.
4688 *
4689 * Return code
4690 * 0 - Either the FARP Match Mode not supported or successfully processed
4691 **/
3688static int 4692static int
3689lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 4693lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3690 struct lpfc_nodelist *ndlp) 4694 struct lpfc_nodelist *ndlp)
@@ -3744,6 +4748,20 @@ lpfc_els_rcv_farp(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3744 return 0; 4748 return 0;
3745} 4749}
3746 4750
4751/**
4752 * lpfc_els_rcv_farpr: Process an unsolicited farp response iocb.
4753 * @vport: pointer to a host virtual N_Port data structure.
4754 * @cmdiocb: pointer to lpfc command iocb data structure.
4755 * @ndlp: pointer to a node-list data structure.
4756 *
4757 * This routine processes Fibre Channel Address Resolution Protocol
4758 * Response (FARPR) IOCB received as an ELS unsolicited event. It simply
4759 * invokes the lpfc_els_rsp_acc() routine to the remote node to accept
4760 * the FARP response request.
4761 *
4762 * Return code
4763 * 0 - Successfully processed FARPR IOCB (currently always return 0)
4764 **/
3747static int 4765static int
3748lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 4766lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3749 struct lpfc_nodelist *ndlp) 4767 struct lpfc_nodelist *ndlp)
@@ -3768,6 +4786,25 @@ lpfc_els_rcv_farpr(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3768 return 0; 4786 return 0;
3769} 4787}
3770 4788
4789/**
4790 * lpfc_els_rcv_fan: Process an unsolicited fan iocb command.
4791 * @vport: pointer to a host virtual N_Port data structure.
4792 * @cmdiocb: pointer to lpfc command iocb data structure.
4793 * @fan_ndlp: pointer to a node-list data structure.
4794 *
4795 * This routine processes a Fabric Address Notification (FAN) IOCB
4796 * command received as an ELS unsolicited event. The FAN ELS command will
4797 * only be processed on a physical port (i.e., the @vport represents the
4798 * physical port). The fabric NodeName and PortName from the FAN IOCB are
4799 * compared against those in the phba data structure. If any of those is
4800 * different, the lpfc_initial_flogi() routine is invoked to initialize
4801 * Fabric Login (FLOGI) to the fabric to start the discover over. Otherwise,
4802 * if both of those are identical, the lpfc_issue_fabric_reglogin() routine
4803 * is invoked to register login to the fabric.
4804 *
4805 * Return code
4806 * 0 - Successfully processed fan iocb (currently always return 0).
4807 **/
3771static int 4808static int
3772lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb, 4809lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3773 struct lpfc_nodelist *fan_ndlp) 4810 struct lpfc_nodelist *fan_ndlp)
@@ -3797,6 +4834,16 @@ lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
3797 return 0; 4834 return 0;
3798} 4835}
3799 4836
4837/**
4838 * lpfc_els_timeout: Handler funciton to the els timer.
4839 * @ptr: holder for the timer function associated data.
4840 *
4841 * This routine is invoked by the ELS timer after timeout. It posts the ELS
4842 * timer timeout event by setting the WORKER_ELS_TMO bit to the work port
4843 * event bitmap and then invokes the lpfc_worker_wake_up() routine to wake
4844 * up the worker thread. It is for the worker thread to invoke the routine
4845 * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
4846 **/
3800void 4847void
3801lpfc_els_timeout(unsigned long ptr) 4848lpfc_els_timeout(unsigned long ptr)
3802{ 4849{
@@ -3816,6 +4863,15 @@ lpfc_els_timeout(unsigned long ptr)
3816 return; 4863 return;
3817} 4864}
3818 4865
4866/**
4867 * lpfc_els_timeout_handler: Process an els timeout event.
4868 * @vport: pointer to a virtual N_Port data structure.
4869 *
4870 * This routine is the actual handler function that processes an ELS timeout
4871 * event. It walks the ELS ring to get and abort all the IOCBs (except the
4872 * ABORT/CLOSE/FARP/FARPR/FDISC), which are associated with the @vport by
4873 * invoking the lpfc_sli_issue_abort_iotag() routine.
4874 **/
3819void 4875void
3820lpfc_els_timeout_handler(struct lpfc_vport *vport) 4876lpfc_els_timeout_handler(struct lpfc_vport *vport)
3821{ 4877{
@@ -3886,6 +4942,26 @@ lpfc_els_timeout_handler(struct lpfc_vport *vport)
3886 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 4942 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
3887} 4943}
3888 4944
4945/**
4946 * lpfc_els_flush_cmd: Clean up the outstanding els commands to a vport.
4947 * @vport: pointer to a host virtual N_Port data structure.
4948 *
4949 * This routine is used to clean up all the outstanding ELS commands on a
4950 * @vport. It first aborts the @vport by invoking lpfc_fabric_abort_vport()
4951 * routine. After that, it walks the ELS transmit queue to remove all the
4952 * IOCBs with the @vport other than the QUE_RING and ABORT/CLOSE IOCBs. For
4953 * the IOCBs with a non-NULL completion callback function, the callback
4954 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
4955 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs with a NULL completion
4956 * callback function, the IOCB will simply be released. Finally, it walks
4957 * the ELS transmit completion queue to issue an abort IOCB to any transmit
4958 * completion queue IOCB that is associated with the @vport and is not
4959 * an IOCB from libdfc (i.e., the management plane IOCBs that are not
4960 * part of the discovery state machine) out to HBA by invoking the
4961 * lpfc_sli_issue_abort_iotag() routine. Note that this function issues the
4962 * abort IOCB to any transmit completion queueed IOCB, it does not guarantee
4963 * the IOCBs are aborted when this function returns.
4964 **/
3889void 4965void
3890lpfc_els_flush_cmd(struct lpfc_vport *vport) 4966lpfc_els_flush_cmd(struct lpfc_vport *vport)
3891{ 4967{
@@ -3948,6 +5024,23 @@ lpfc_els_flush_cmd(struct lpfc_vport *vport)
3948 return; 5024 return;
3949} 5025}
3950 5026
5027/**
5028 * lpfc_els_flush_all_cmd: Clean up all the outstanding els commands to a HBA.
5029 * @phba: pointer to lpfc hba data structure.
5030 *
5031 * This routine is used to clean up all the outstanding ELS commands on a
5032 * @phba. It first aborts the @phba by invoking the lpfc_fabric_abort_hba()
5033 * routine. After that, it walks the ELS transmit queue to remove all the
5034 * IOCBs to the @phba other than the QUE_RING and ABORT/CLOSE IOCBs. For
5035 * the IOCBs with the completion callback function associated, the callback
5036 * function will be invoked with the status set to IOSTAT_LOCAL_REJECT and
5037 * un.ulpWord[4] set to IOERR_SLI_ABORTED. For IOCBs without the completion
5038 * callback function associated, the IOCB will simply be released. Finally,
5039 * it walks the ELS transmit completion queue to issue an abort IOCB to any
5040 * transmit completion queue IOCB that is not an IOCB from libdfc (i.e., the
5041 * management plane IOCBs that are not part of the discovery state machine)
5042 * out to HBA by invoking the lpfc_sli_issue_abort_iotag() routine.
5043 **/
3951void 5044void
3952lpfc_els_flush_all_cmd(struct lpfc_hba *phba) 5045lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
3953{ 5046{
@@ -3992,6 +5085,130 @@ lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
3992 return; 5085 return;
3993} 5086}
3994 5087
5088/**
5089 * lpfc_send_els_failure_event: Posts an ELS command failure event.
5090 * @phba: Pointer to hba context object.
5091 * @cmdiocbp: Pointer to command iocb which reported error.
5092 * @rspiocbp: Pointer to response iocb which reported error.
5093 *
5094 * This function sends an event when there is an ELS command
5095 * failure.
5096 **/
5097void
5098lpfc_send_els_failure_event(struct lpfc_hba *phba,
5099 struct lpfc_iocbq *cmdiocbp,
5100 struct lpfc_iocbq *rspiocbp)
5101{
5102 struct lpfc_vport *vport = cmdiocbp->vport;
5103 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5104 struct lpfc_lsrjt_event lsrjt_event;
5105 struct lpfc_fabric_event_header fabric_event;
5106 struct ls_rjt stat;
5107 struct lpfc_nodelist *ndlp;
5108 uint32_t *pcmd;
5109
5110 ndlp = cmdiocbp->context1;
5111 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
5112 return;
5113
5114 if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) {
5115 lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
5116 lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
5117 memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
5118 sizeof(struct lpfc_name));
5119 memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
5120 sizeof(struct lpfc_name));
5121 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
5122 cmdiocbp->context2)->virt);
5123 lsrjt_event.command = *pcmd;
5124 stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]);
5125 lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
5126 lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
5127 fc_host_post_vendor_event(shost,
5128 fc_get_event_number(),
5129 sizeof(lsrjt_event),
5130 (char *)&lsrjt_event,
5131 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
5132 return;
5133 }
5134 if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
5135 (rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) {
5136 fabric_event.event_type = FC_REG_FABRIC_EVENT;
5137 if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY)
5138 fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
5139 else
5140 fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
5141 memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
5142 sizeof(struct lpfc_name));
5143 memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
5144 sizeof(struct lpfc_name));
5145 fc_host_post_vendor_event(shost,
5146 fc_get_event_number(),
5147 sizeof(fabric_event),
5148 (char *)&fabric_event,
5149 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
5150 return;
5151 }
5152
5153}
5154
5155/**
5156 * lpfc_send_els_event: Posts unsolicited els event.
5157 * @vport: Pointer to vport object.
5158 * @ndlp: Pointer FC node object.
5159 * @cmd: ELS command code.
5160 *
5161 * This function posts an event when there is an incoming
5162 * unsolicited ELS command.
5163 **/
5164static void
5165lpfc_send_els_event(struct lpfc_vport *vport,
5166 struct lpfc_nodelist *ndlp,
5167 uint32_t cmd)
5168{
5169 struct lpfc_els_event_header els_data;
5170 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
5171
5172 els_data.event_type = FC_REG_ELS_EVENT;
5173 switch (cmd) {
5174 case ELS_CMD_PLOGI:
5175 els_data.subcategory = LPFC_EVENT_PLOGI_RCV;
5176 break;
5177 case ELS_CMD_PRLO:
5178 els_data.subcategory = LPFC_EVENT_PRLO_RCV;
5179 break;
5180 case ELS_CMD_ADISC:
5181 els_data.subcategory = LPFC_EVENT_ADISC_RCV;
5182 break;
5183 default:
5184 return;
5185 }
5186 memcpy(els_data.wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
5187 memcpy(els_data.wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
5188 fc_host_post_vendor_event(shost,
5189 fc_get_event_number(),
5190 sizeof(els_data),
5191 (char *)&els_data,
5192 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
5193
5194 return;
5195}
5196
5197
5198/**
5199 * lpfc_els_unsol_buffer: Process an unsolicited event data buffer.
5200 * @phba: pointer to lpfc hba data structure.
5201 * @pring: pointer to a SLI ring.
5202 * @vport: pointer to a host virtual N_Port data structure.
5203 * @elsiocb: pointer to lpfc els command iocb data structure.
5204 *
5205 * This routine is used for processing the IOCB associated with a unsolicited
5206 * event. It first determines whether there is an existing ndlp that matches
5207 * the DID from the unsolicited IOCB. If not, it will create a new one with
5208 * the DID from the unsolicited IOCB. The ELS command from the unsolicited
5209 * IOCB is then used to invoke the proper routine and to set up proper state
5210 * of the discovery state machine.
5211 **/
3995static void 5212static void
3996lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 5213lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3997 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb) 5214 struct lpfc_vport *vport, struct lpfc_iocbq *elsiocb)
@@ -4059,8 +5276,6 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
4059 } 5276 }
4060 5277
4061 phba->fc_stat.elsRcvFrame++; 5278 phba->fc_stat.elsRcvFrame++;
4062 if (elsiocb->context1)
4063 lpfc_nlp_put(elsiocb->context1);
4064 5279
4065 elsiocb->context1 = lpfc_nlp_get(ndlp); 5280 elsiocb->context1 = lpfc_nlp_get(ndlp);
4066 elsiocb->vport = vport; 5281 elsiocb->vport = vport;
@@ -4081,6 +5296,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
4081 phba->fc_stat.elsRcvPLOGI++; 5296 phba->fc_stat.elsRcvPLOGI++;
4082 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp); 5297 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
4083 5298
5299 lpfc_send_els_event(vport, ndlp, cmd);
4084 if (vport->port_state < LPFC_DISC_AUTH) { 5300 if (vport->port_state < LPFC_DISC_AUTH) {
4085 if (!(phba->pport->fc_flag & FC_PT2PT) || 5301 if (!(phba->pport->fc_flag & FC_PT2PT) ||
4086 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) { 5302 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
@@ -4130,6 +5346,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
4130 did, vport->port_state, ndlp->nlp_flag); 5346 did, vport->port_state, ndlp->nlp_flag);
4131 5347
4132 phba->fc_stat.elsRcvPRLO++; 5348 phba->fc_stat.elsRcvPRLO++;
5349 lpfc_send_els_event(vport, ndlp, cmd);
4133 if (vport->port_state < LPFC_DISC_AUTH) { 5350 if (vport->port_state < LPFC_DISC_AUTH) {
4134 rjt_err = LSRJT_UNABLE_TPC; 5351 rjt_err = LSRJT_UNABLE_TPC;
4135 break; 5352 break;
@@ -4147,6 +5364,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
4147 "RCV ADISC: did:x%x/ste:x%x flg:x%x", 5364 "RCV ADISC: did:x%x/ste:x%x flg:x%x",
4148 did, vport->port_state, ndlp->nlp_flag); 5365 did, vport->port_state, ndlp->nlp_flag);
4149 5366
5367 lpfc_send_els_event(vport, ndlp, cmd);
4150 phba->fc_stat.elsRcvADISC++; 5368 phba->fc_stat.elsRcvADISC++;
4151 if (vport->port_state < LPFC_DISC_AUTH) { 5369 if (vport->port_state < LPFC_DISC_AUTH) {
4152 rjt_err = LSRJT_UNABLE_TPC; 5370 rjt_err = LSRJT_UNABLE_TPC;
@@ -4270,6 +5488,8 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
4270 NULL); 5488 NULL);
4271 } 5489 }
4272 5490
5491 lpfc_nlp_put(elsiocb->context1);
5492 elsiocb->context1 = NULL;
4273 return; 5493 return;
4274 5494
4275dropit: 5495dropit:
@@ -4282,6 +5502,19 @@ dropit:
4282 phba->fc_stat.elsRcvDrop++; 5502 phba->fc_stat.elsRcvDrop++;
4283} 5503}
4284 5504
5505/**
5506 * lpfc_find_vport_by_vpid: Find a vport on a HBA through vport identifier.
5507 * @phba: pointer to lpfc hba data structure.
5508 * @vpi: host virtual N_Port identifier.
5509 *
5510 * This routine finds a vport on a HBA (referred by @phba) through a
5511 * @vpi. The function walks the HBA's vport list and returns the address
5512 * of the vport with the matching @vpi.
5513 *
5514 * Return code
5515 * NULL - No vport with the matching @vpi found
5516 * Otherwise - Address to the vport with the matching @vpi.
5517 **/
4285static struct lpfc_vport * 5518static struct lpfc_vport *
4286lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi) 5519lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
4287{ 5520{
@@ -4299,6 +5532,18 @@ lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
4299 return NULL; 5532 return NULL;
4300} 5533}
4301 5534
5535/**
5536 * lpfc_els_unsol_event: Process an unsolicited event from an els sli ring.
5537 * @phba: pointer to lpfc hba data structure.
5538 * @pring: pointer to a SLI ring.
5539 * @elsiocb: pointer to lpfc els iocb data structure.
5540 *
5541 * This routine is used to process an unsolicited event received from a SLI
5542 * (Service Level Interface) ring. The actual processing of the data buffer
5543 * associated with the unsolicited event is done by invoking the routine
5544 * lpfc_els_unsol_buffer() after properly set up the iocb buffer from the
5545 * SLI ring on which the unsolicited event was received.
5546 **/
4302void 5547void
4303lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 5548lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
4304 struct lpfc_iocbq *elsiocb) 5549 struct lpfc_iocbq *elsiocb)
@@ -4309,6 +5554,7 @@ lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
4309 struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2; 5554 struct lpfc_dmabuf *bdeBuf1 = elsiocb->context2;
4310 struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3; 5555 struct lpfc_dmabuf *bdeBuf2 = elsiocb->context3;
4311 5556
5557 elsiocb->context1 = NULL;
4312 elsiocb->context2 = NULL; 5558 elsiocb->context2 = NULL;
4313 elsiocb->context3 = NULL; 5559 elsiocb->context3 = NULL;
4314 5560
@@ -4356,8 +5602,6 @@ lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
4356 * The different unsolicited event handlers would tell us 5602 * The different unsolicited event handlers would tell us
4357 * if they are done with "mp" by setting context2 to NULL. 5603 * if they are done with "mp" by setting context2 to NULL.
4358 */ 5604 */
4359 lpfc_nlp_put(elsiocb->context1);
4360 elsiocb->context1 = NULL;
4361 if (elsiocb->context2) { 5605 if (elsiocb->context2) {
4362 lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2); 5606 lpfc_in_buf_free(phba, (struct lpfc_dmabuf *)elsiocb->context2);
4363 elsiocb->context2 = NULL; 5607 elsiocb->context2 = NULL;
@@ -4376,6 +5620,19 @@ lpfc_els_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
4376 } 5620 }
4377} 5621}
4378 5622
5623/**
5624 * lpfc_do_scr_ns_plogi: Issue a plogi to the name server for scr.
5625 * @phba: pointer to lpfc hba data structure.
5626 * @vport: pointer to a virtual N_Port data structure.
5627 *
5628 * This routine issues a Port Login (PLOGI) to the Name Server with
5629 * State Change Request (SCR) for a @vport. This routine will create an
5630 * ndlp for the Name Server associated to the @vport if such node does
5631 * not already exist. The PLOGI to Name Server is issued by invoking the
5632 * lpfc_issue_els_plogi() routine. If Fabric-Device Management Interface
5633 * (FDMI) is configured to the @vport, a FDMI node will be created and
5634 * the PLOGI to FDMI is issued by invoking lpfc_issue_els_plogi() routine.
5635 **/
4379void 5636void
4380lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport) 5637lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
4381{ 5638{
@@ -4434,6 +5691,18 @@ lpfc_do_scr_ns_plogi(struct lpfc_hba *phba, struct lpfc_vport *vport)
4434 return; 5691 return;
4435} 5692}
4436 5693
5694/**
5695 * lpfc_cmpl_reg_new_vport: Completion callback function to register new vport.
5696 * @phba: pointer to lpfc hba data structure.
5697 * @pmb: pointer to the driver internal queue element for mailbox command.
5698 *
5699 * This routine is the completion callback function to register new vport
5700 * mailbox command. If the new vport mailbox command completes successfully,
5701 * the fabric registration login shall be performed on physical port (the
5702 * new vport created is actually a physical port, with VPI 0) or the port
5703 * login to Name Server for State Change Request (SCR) will be performed
5704 * on virtual port (real virtual port, with VPI greater than 0).
5705 **/
4437static void 5706static void
4438lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 5707lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4439{ 5708{
@@ -4491,6 +5760,15 @@ lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
4491 return; 5760 return;
4492} 5761}
4493 5762
5763/**
5764 * lpfc_register_new_vport: Register a new vport with a HBA.
5765 * @phba: pointer to lpfc hba data structure.
5766 * @vport: pointer to a host virtual N_Port data structure.
5767 * @ndlp: pointer to a node-list data structure.
5768 *
5769 * This routine registers the @vport as a new virtual port with a HBA.
5770 * It is done through a registering vpi mailbox command.
5771 **/
4494static void 5772static void
4495lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport, 5773lpfc_register_new_vport(struct lpfc_hba *phba, struct lpfc_vport *vport,
4496 struct lpfc_nodelist *ndlp) 5774 struct lpfc_nodelist *ndlp)
@@ -4531,6 +5809,26 @@ mbox_err_exit:
4531 return; 5809 return;
4532} 5810}
4533 5811
5812/**
5813 * lpfc_cmpl_els_fdisc: Completion function for fdisc iocb command.
5814 * @phba: pointer to lpfc hba data structure.
5815 * @cmdiocb: pointer to lpfc command iocb data structure.
5816 * @rspiocb: pointer to lpfc response iocb data structure.
5817 *
5818 * This routine is the completion callback function to a Fabric Discover
5819 * (FDISC) ELS command. Since all the FDISC ELS commands are issued
5820 * single threaded, each FDISC completion callback function will reset
5821 * the discovery timer for all vports such that the timers will not get
5822 * unnecessary timeout. The function checks the FDISC IOCB status. If error
5823 * detected, the vport will be set to FC_VPORT_FAILED state. Otherwise,the
5824 * vport will set to FC_VPORT_ACTIVE state. It then checks whether the DID
5825 * assigned to the vport has been changed with the completion of the FDISC
5826 * command. If so, both RPI (Remote Port Index) and VPI (Virtual Port Index)
5827 * are unregistered from the HBA, and then the lpfc_register_new_vport()
5828 * routine is invoked to register new vport with the HBA. Otherwise, the
5829 * lpfc_do_scr_ns_plogi() routine is invoked to issue a PLOGI to the Name
5830 * Server for State Change Request (SCR).
5831 **/
4534static void 5832static void
4535lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 5833lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
4536 struct lpfc_iocbq *rspiocb) 5834 struct lpfc_iocbq *rspiocb)
@@ -4565,58 +5863,80 @@ lpfc_cmpl_els_fdisc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
4565 goto out; 5863 goto out;
4566 /* FDISC failed */ 5864 /* FDISC failed */
4567 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS, 5865 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
4568 "0124 FDISC failed. (%d/%d)\n", 5866 "0126 FDISC failed. (%d/%d)\n",
4569 irsp->ulpStatus, irsp->un.ulpWord[4]); 5867 irsp->ulpStatus, irsp->un.ulpWord[4]);
5868 goto fdisc_failed;
5869 }
4570 if (vport->fc_vport->vport_state == FC_VPORT_INITIALIZING) 5870 if (vport->fc_vport->vport_state == FC_VPORT_INITIALIZING)
4571 lpfc_vport_set_state(vport, FC_VPORT_FAILED); 5871 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
4572 lpfc_nlp_put(ndlp); 5872 lpfc_nlp_put(ndlp);
4573 /* giving up on FDISC. Cancel discovery timer */ 5873 /* giving up on FDISC. Cancel discovery timer */
4574 lpfc_can_disctmo(vport); 5874 lpfc_can_disctmo(vport);
4575 } else { 5875 spin_lock_irq(shost->host_lock);
4576 spin_lock_irq(shost->host_lock); 5876 vport->fc_flag |= FC_FABRIC;
4577 vport->fc_flag |= FC_FABRIC; 5877 if (vport->phba->fc_topology == TOPOLOGY_LOOP)
4578 if (vport->phba->fc_topology == TOPOLOGY_LOOP) 5878 vport->fc_flag |= FC_PUBLIC_LOOP;
4579 vport->fc_flag |= FC_PUBLIC_LOOP; 5879 spin_unlock_irq(shost->host_lock);
4580 spin_unlock_irq(shost->host_lock);
4581 5880
4582 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID; 5881 vport->fc_myDID = irsp->un.ulpWord[4] & Mask_DID;
4583 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE); 5882 lpfc_vport_set_state(vport, FC_VPORT_ACTIVE);
4584 if ((vport->fc_prevDID != vport->fc_myDID) && 5883 if ((vport->fc_prevDID != vport->fc_myDID) &&
4585 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) { 5884 !(vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)) {
4586 /* If our NportID changed, we need to ensure all 5885 /* If our NportID changed, we need to ensure all
4587 * remaining NPORTs get unreg_login'ed so we can 5886 * remaining NPORTs get unreg_login'ed so we can
4588 * issue unreg_vpi. 5887 * issue unreg_vpi.
4589 */ 5888 */
4590 list_for_each_entry_safe(np, next_np, 5889 list_for_each_entry_safe(np, next_np,
4591 &vport->fc_nodes, nlp_listp) { 5890 &vport->fc_nodes, nlp_listp) {
4592 if (!NLP_CHK_NODE_ACT(ndlp) || 5891 if (!NLP_CHK_NODE_ACT(ndlp) ||
4593 (np->nlp_state != NLP_STE_NPR_NODE) || 5892 (np->nlp_state != NLP_STE_NPR_NODE) ||
4594 !(np->nlp_flag & NLP_NPR_ADISC)) 5893 !(np->nlp_flag & NLP_NPR_ADISC))
4595 continue; 5894 continue;
4596 spin_lock_irq(shost->host_lock);
4597 np->nlp_flag &= ~NLP_NPR_ADISC;
4598 spin_unlock_irq(shost->host_lock);
4599 lpfc_unreg_rpi(vport, np);
4600 }
4601 lpfc_mbx_unreg_vpi(vport);
4602 spin_lock_irq(shost->host_lock); 5895 spin_lock_irq(shost->host_lock);
4603 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; 5896 np->nlp_flag &= ~NLP_NPR_ADISC;
4604 spin_unlock_irq(shost->host_lock); 5897 spin_unlock_irq(shost->host_lock);
5898 lpfc_unreg_rpi(vport, np);
4605 } 5899 }
4606 5900 lpfc_mbx_unreg_vpi(vport);
4607 if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI) 5901 spin_lock_irq(shost->host_lock);
4608 lpfc_register_new_vport(phba, vport, ndlp); 5902 vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4609 else 5903 spin_unlock_irq(shost->host_lock);
4610 lpfc_do_scr_ns_plogi(phba, vport);
4611
4612 /* Unconditionaly kick off releasing fabric node for vports */
4613 lpfc_nlp_put(ndlp);
4614 } 5904 }
4615 5905
5906 if (vport->fc_flag & FC_VPORT_NEEDS_REG_VPI)
5907 lpfc_register_new_vport(phba, vport, ndlp);
5908 else
5909 lpfc_do_scr_ns_plogi(phba, vport);
5910 goto out;
5911fdisc_failed:
5912 lpfc_vport_set_state(vport, FC_VPORT_FAILED);
5913 /* Cancel discovery timer */
5914 lpfc_can_disctmo(vport);
5915 lpfc_nlp_put(ndlp);
4616out: 5916out:
4617 lpfc_els_free_iocb(phba, cmdiocb); 5917 lpfc_els_free_iocb(phba, cmdiocb);
4618} 5918}
4619 5919
5920/**
5921 * lpfc_issue_els_fdisc: Issue a fdisc iocb command.
5922 * @vport: pointer to a virtual N_Port data structure.
5923 * @ndlp: pointer to a node-list data structure.
5924 * @retry: number of retries to the command IOCB.
5925 *
5926 * This routine prepares and issues a Fabric Discover (FDISC) IOCB to
5927 * a remote node (@ndlp) off a @vport. It uses the lpfc_issue_fabric_iocb()
5928 * routine to issue the IOCB, which makes sure only one outstanding fabric
5929 * IOCB will be sent off HBA at any given time.
5930 *
5931 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
5932 * will be incremented by 1 for holding the ndlp and the reference to ndlp
5933 * will be stored into the context1 field of the IOCB for the completion
5934 * callback function to the FDISC ELS command.
5935 *
5936 * Return code
5937 * 0 - Successfully issued fdisc iocb command
5938 * 1 - Failed to issue fdisc iocb command
5939 **/
4620static int 5940static int
4621lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 5941lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4622 uint8_t retry) 5942 uint8_t retry)
@@ -4691,6 +6011,20 @@ lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
4691 return 0; 6011 return 0;
4692} 6012}
4693 6013
6014/**
6015 * lpfc_cmpl_els_npiv_logo: Completion function with vport logo.
6016 * @phba: pointer to lpfc hba data structure.
6017 * @cmdiocb: pointer to lpfc command iocb data structure.
6018 * @rspiocb: pointer to lpfc response iocb data structure.
6019 *
6020 * This routine is the completion callback function to the issuing of a LOGO
6021 * ELS command off a vport. It frees the command IOCB and then decrement the
6022 * reference count held on ndlp for this completion function, indicating that
6023 * the reference to the ndlp is no long needed. Note that the
6024 * lpfc_els_free_iocb() routine decrements the ndlp reference held for this
6025 * callback function and an additional explicit ndlp reference decrementation
6026 * will trigger the actual release of the ndlp.
6027 **/
4694static void 6028static void
4695lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 6029lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
4696 struct lpfc_iocbq *rspiocb) 6030 struct lpfc_iocbq *rspiocb)
@@ -4712,6 +6046,22 @@ lpfc_cmpl_els_npiv_logo(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
4712 lpfc_nlp_put(ndlp); 6046 lpfc_nlp_put(ndlp);
4713} 6047}
4714 6048
6049/**
6050 * lpfc_issue_els_npiv_logo: Issue a logo off a vport.
6051 * @vport: pointer to a virtual N_Port data structure.
6052 * @ndlp: pointer to a node-list data structure.
6053 *
6054 * This routine issues a LOGO ELS command to an @ndlp off a @vport.
6055 *
6056 * Note that, in lpfc_prep_els_iocb() routine, the reference count of ndlp
6057 * will be incremented by 1 for holding the ndlp and the reference to ndlp
6058 * will be stored into the context1 field of the IOCB for the completion
6059 * callback function to the LOGO ELS command.
6060 *
6061 * Return codes
6062 * 0 - Successfully issued logo off the @vport
6063 * 1 - Failed to issue logo off the @vport
6064 **/
4715int 6065int
4716lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) 6066lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4717{ 6067{
@@ -4757,6 +6107,17 @@ lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
4757 return 0; 6107 return 0;
4758} 6108}
4759 6109
6110/**
6111 * lpfc_fabric_block_timeout: Handler function to the fabric block timer.
6112 * @ptr: holder for the timer function associated data.
6113 *
6114 * This routine is invoked by the fabric iocb block timer after
6115 * timeout. It posts the fabric iocb block timeout event by setting the
6116 * WORKER_FABRIC_BLOCK_TMO bit to work port event bitmap and then invokes
6117 * lpfc_worker_wake_up() routine to wake up the worker thread. It is for
6118 * the worker thread to invoke the lpfc_unblock_fabric_iocbs() on the
6119 * posted event WORKER_FABRIC_BLOCK_TMO.
6120 **/
4760void 6121void
4761lpfc_fabric_block_timeout(unsigned long ptr) 6122lpfc_fabric_block_timeout(unsigned long ptr)
4762{ 6123{
@@ -4775,6 +6136,16 @@ lpfc_fabric_block_timeout(unsigned long ptr)
4775 return; 6136 return;
4776} 6137}
4777 6138
6139/**
6140 * lpfc_resume_fabric_iocbs: Issue a fabric iocb from driver internal list.
6141 * @phba: pointer to lpfc hba data structure.
6142 *
6143 * This routine issues one fabric iocb from the driver internal list to
6144 * the HBA. It first checks whether it's ready to issue one fabric iocb to
6145 * the HBA (whether there is no outstanding fabric iocb). If so, it shall
6146 * remove one pending fabric iocb from the driver internal list and invokes
6147 * lpfc_sli_issue_iocb() routine to send the fabric iocb to the HBA.
6148 **/
4778static void 6149static void
4779lpfc_resume_fabric_iocbs(struct lpfc_hba *phba) 6150lpfc_resume_fabric_iocbs(struct lpfc_hba *phba)
4780{ 6151{
@@ -4824,6 +6195,15 @@ repeat:
4824 return; 6195 return;
4825} 6196}
4826 6197
6198/**
6199 * lpfc_unblock_fabric_iocbs: Unblock issuing fabric iocb command.
6200 * @phba: pointer to lpfc hba data structure.
6201 *
6202 * This routine unblocks the issuing fabric iocb command. The function
6203 * will clear the fabric iocb block bit and then invoke the routine
6204 * lpfc_resume_fabric_iocbs() to issue one of the pending fabric iocb
6205 * from the driver internal fabric iocb list.
6206 **/
4827void 6207void
4828lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba) 6208lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
4829{ 6209{
@@ -4833,6 +6213,15 @@ lpfc_unblock_fabric_iocbs(struct lpfc_hba *phba)
4833 return; 6213 return;
4834} 6214}
4835 6215
6216/**
6217 * lpfc_block_fabric_iocbs: Block issuing fabric iocb command.
6218 * @phba: pointer to lpfc hba data structure.
6219 *
6220 * This routine blocks the issuing fabric iocb for a specified amount of
6221 * time (currently 100 ms). This is done by set the fabric iocb block bit
6222 * and set up a timeout timer for 100ms. When the block bit is set, no more
6223 * fabric iocb will be issued out of the HBA.
6224 **/
4836static void 6225static void
4837lpfc_block_fabric_iocbs(struct lpfc_hba *phba) 6226lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
4838{ 6227{
@@ -4846,6 +6235,19 @@ lpfc_block_fabric_iocbs(struct lpfc_hba *phba)
4846 return; 6235 return;
4847} 6236}
4848 6237
6238/**
6239 * lpfc_cmpl_fabric_iocb: Completion callback function for fabric iocb.
6240 * @phba: pointer to lpfc hba data structure.
6241 * @cmdiocb: pointer to lpfc command iocb data structure.
6242 * @rspiocb: pointer to lpfc response iocb data structure.
6243 *
6244 * This routine is the callback function that is put to the fabric iocb's
6245 * callback function pointer (iocb->iocb_cmpl). The original iocb's callback
6246 * function pointer has been stored in iocb->fabric_iocb_cmpl. This callback
6247 * function first restores and invokes the original iocb's callback function
6248 * and then invokes the lpfc_resume_fabric_iocbs() routine to issue the next
6249 * fabric bound iocb from the driver internal fabric iocb list onto the wire.
6250 **/
4849static void 6251static void
4850lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 6252lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
4851 struct lpfc_iocbq *rspiocb) 6253 struct lpfc_iocbq *rspiocb)
@@ -4892,6 +6294,30 @@ lpfc_cmpl_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
4892 } 6294 }
4893} 6295}
4894 6296
6297/**
6298 * lpfc_issue_fabric_iocb: Issue a fabric iocb command.
6299 * @phba: pointer to lpfc hba data structure.
6300 * @iocb: pointer to lpfc command iocb data structure.
6301 *
6302 * This routine is used as the top-level API for issuing a fabric iocb command
6303 * such as FLOGI and FDISC. To accommodate certain switch fabric, this driver
6304 * function makes sure that only one fabric bound iocb will be outstanding at
6305 * any given time. As such, this function will first check to see whether there
6306 * is already an outstanding fabric iocb on the wire. If so, it will put the
6307 * newly issued iocb onto the driver internal fabric iocb list, waiting to be
6308 * issued later. Otherwise, it will issue the iocb on the wire and update the
6309 * fabric iocb count it indicate that there is one fabric iocb on the wire.
6310 *
6311 * Note, this implementation has a potential sending out fabric IOCBs out of
6312 * order. The problem is caused by the construction of the "ready" boolen does
6313 * not include the condition that the internal fabric IOCB list is empty. As
6314 * such, it is possible a fabric IOCB issued by this routine might be "jump"
6315 * ahead of the fabric IOCBs in the internal list.
6316 *
6317 * Return code
6318 * IOCB_SUCCESS - either fabric iocb put on the list or issued successfully
6319 * IOCB_ERROR - failed to issue fabric iocb
6320 **/
4895static int 6321static int
4896lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb) 6322lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
4897{ 6323{
@@ -4937,7 +6363,17 @@ lpfc_issue_fabric_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *iocb)
4937 return ret; 6363 return ret;
4938} 6364}
4939 6365
4940 6366/**
6367 * lpfc_fabric_abort_vport: Abort a vport's iocbs from driver fabric iocb list.
6368 * @vport: pointer to a virtual N_Port data structure.
6369 *
6370 * This routine aborts all the IOCBs associated with a @vport from the
6371 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
6372 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
6373 * list, removes each IOCB associated with the @vport off the list, set the
6374 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
6375 * associated with the IOCB.
6376 **/
4941static void lpfc_fabric_abort_vport(struct lpfc_vport *vport) 6377static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
4942{ 6378{
4943 LIST_HEAD(completions); 6379 LIST_HEAD(completions);
@@ -4967,6 +6403,17 @@ static void lpfc_fabric_abort_vport(struct lpfc_vport *vport)
4967 } 6403 }
4968} 6404}
4969 6405
6406/**
6407 * lpfc_fabric_abort_nport: Abort a ndlp's iocbs from driver fabric iocb list.
6408 * @ndlp: pointer to a node-list data structure.
6409 *
6410 * This routine aborts all the IOCBs associated with an @ndlp from the
6411 * driver internal fabric IOCB list. The list contains fabric IOCBs to be
6412 * issued to the ELS IOCB ring. This abort function walks the fabric IOCB
6413 * list, removes each IOCB associated with the @ndlp off the list, set the
6414 * status feild to IOSTAT_LOCAL_REJECT, and invokes the callback function
6415 * associated with the IOCB.
6416 **/
4970void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp) 6417void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
4971{ 6418{
4972 LIST_HEAD(completions); 6419 LIST_HEAD(completions);
@@ -4996,6 +6443,17 @@ void lpfc_fabric_abort_nport(struct lpfc_nodelist *ndlp)
4996 } 6443 }
4997} 6444}
4998 6445
6446/**
6447 * lpfc_fabric_abort_hba: Abort all iocbs on driver fabric iocb list.
6448 * @phba: pointer to lpfc hba data structure.
6449 *
6450 * This routine aborts all the IOCBs currently on the driver internal
6451 * fabric IOCB list. The list contains fabric IOCBs to be issued to the ELS
6452 * IOCB ring. This function takes the entire IOCB list off the fabric IOCB
6453 * list, removes IOCBs off the list, set the status feild to
6454 * IOSTAT_LOCAL_REJECT, and invokes the callback function associated with
6455 * the IOCB.
6456 **/
4999void lpfc_fabric_abort_hba(struct lpfc_hba *phba) 6457void lpfc_fabric_abort_hba(struct lpfc_hba *phba)
5000{ 6458{
5001 LIST_HEAD(completions); 6459 LIST_HEAD(completions);
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index a98d11bf3576..a1a70d9ffc2a 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -30,6 +30,7 @@
30#include <scsi/scsi_transport_fc.h> 30#include <scsi/scsi_transport_fc.h>
31 31
32#include "lpfc_hw.h" 32#include "lpfc_hw.h"
33#include "lpfc_nl.h"
33#include "lpfc_disc.h" 34#include "lpfc_disc.h"
34#include "lpfc_sli.h" 35#include "lpfc_sli.h"
35#include "lpfc_scsi.h" 36#include "lpfc_scsi.h"
@@ -88,14 +89,6 @@ lpfc_terminate_rport_io(struct fc_rport *rport)
88 &phba->sli.ring[phba->sli.fcp_ring], 89 &phba->sli.ring[phba->sli.fcp_ring],
89 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 90 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
90 } 91 }
91
92 /*
93 * A device is normally blocked for rediscovery and unblocked when
94 * devloss timeout happens. In case a vport is removed or driver
95 * unloaded before devloss timeout happens, we need to unblock here.
96 */
97 scsi_target_unblock(&rport->dev);
98 return;
99} 92}
100 93
101/* 94/*
@@ -215,8 +208,16 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
215 return; 208 return;
216 } 209 }
217 210
218 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) 211 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
212 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
213 "0284 Devloss timeout Ignored on "
214 "WWPN %x:%x:%x:%x:%x:%x:%x:%x "
215 "NPort x%x\n",
216 *name, *(name+1), *(name+2), *(name+3),
217 *(name+4), *(name+5), *(name+6), *(name+7),
218 ndlp->nlp_DID);
219 return; 219 return;
220 }
220 221
221 if (ndlp->nlp_type & NLP_FABRIC) { 222 if (ndlp->nlp_type & NLP_FABRIC) {
222 /* We will clean up these Nodes in linkup */ 223 /* We will clean up these Nodes in linkup */
@@ -237,8 +238,6 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
237 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring], 238 lpfc_sli_abort_iocb(vport, &phba->sli.ring[phba->sli.fcp_ring],
238 ndlp->nlp_sid, 0, LPFC_CTX_TGT); 239 ndlp->nlp_sid, 0, LPFC_CTX_TGT);
239 } 240 }
240 if (vport->load_flag & FC_UNLOADING)
241 warn_on = 0;
242 241
243 if (warn_on) { 242 if (warn_on) {
244 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 243 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
@@ -276,6 +275,124 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
276 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM); 275 lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
277} 276}
278 277
278/**
279 * lpfc_alloc_fast_evt: Allocates data structure for posting event.
280 * @phba: Pointer to hba context object.
281 *
282 * This function is called from the functions which need to post
283 * events from interrupt context. This function allocates data
284 * structure required for posting event. It also keeps track of
285 * number of events pending and prevent event storm when there are
286 * too many events.
287 **/
288struct lpfc_fast_path_event *
289lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
290 struct lpfc_fast_path_event *ret;
291
292 /* If there are lot of fast event do not exhaust memory due to this */
293 if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
294 return NULL;
295
296 ret = kzalloc(sizeof(struct lpfc_fast_path_event),
297 GFP_ATOMIC);
298 if (ret)
299 atomic_inc(&phba->fast_event_count);
300 INIT_LIST_HEAD(&ret->work_evt.evt_listp);
301 ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
302 return ret;
303}
304
305/**
306 * lpfc_free_fast_evt: Frees event data structure.
307 * @phba: Pointer to hba context object.
308 * @evt: Event object which need to be freed.
309 *
310 * This function frees the data structure required for posting
311 * events.
312 **/
313void
314lpfc_free_fast_evt(struct lpfc_hba *phba,
315 struct lpfc_fast_path_event *evt) {
316
317 atomic_dec(&phba->fast_event_count);
318 kfree(evt);
319}
320
321/**
322 * lpfc_send_fastpath_evt: Posts events generated from fast path.
323 * @phba: Pointer to hba context object.
324 * @evtp: Event data structure.
325 *
326 * This function is called from worker thread, when the interrupt
327 * context need to post an event. This function posts the event
328 * to fc transport netlink interface.
329 **/
330static void
331lpfc_send_fastpath_evt(struct lpfc_hba *phba,
332 struct lpfc_work_evt *evtp)
333{
334 unsigned long evt_category, evt_sub_category;
335 struct lpfc_fast_path_event *fast_evt_data;
336 char *evt_data;
337 uint32_t evt_data_size;
338 struct Scsi_Host *shost;
339
340 fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
341 work_evt);
342
343 evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
344 evt_sub_category = (unsigned long) fast_evt_data->un.
345 fabric_evt.subcategory;
346 shost = lpfc_shost_from_vport(fast_evt_data->vport);
347 if (evt_category == FC_REG_FABRIC_EVENT) {
348 if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
349 evt_data = (char *) &fast_evt_data->un.read_check_error;
350 evt_data_size = sizeof(fast_evt_data->un.
351 read_check_error);
352 } else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
353 (evt_sub_category == IOSTAT_NPORT_BSY)) {
354 evt_data = (char *) &fast_evt_data->un.fabric_evt;
355 evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
356 } else {
357 lpfc_free_fast_evt(phba, fast_evt_data);
358 return;
359 }
360 } else if (evt_category == FC_REG_SCSI_EVENT) {
361 switch (evt_sub_category) {
362 case LPFC_EVENT_QFULL:
363 case LPFC_EVENT_DEVBSY:
364 evt_data = (char *) &fast_evt_data->un.scsi_evt;
365 evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
366 break;
367 case LPFC_EVENT_CHECK_COND:
368 evt_data = (char *) &fast_evt_data->un.check_cond_evt;
369 evt_data_size = sizeof(fast_evt_data->un.
370 check_cond_evt);
371 break;
372 case LPFC_EVENT_VARQUEDEPTH:
373 evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
374 evt_data_size = sizeof(fast_evt_data->un.
375 queue_depth_evt);
376 break;
377 default:
378 lpfc_free_fast_evt(phba, fast_evt_data);
379 return;
380 }
381 } else {
382 lpfc_free_fast_evt(phba, fast_evt_data);
383 return;
384 }
385
386 fc_host_post_vendor_event(shost,
387 fc_get_event_number(),
388 evt_data_size,
389 evt_data,
390 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
391
392 lpfc_free_fast_evt(phba, fast_evt_data);
393 return;
394}
395
279static void 396static void
280lpfc_work_list_done(struct lpfc_hba *phba) 397lpfc_work_list_done(struct lpfc_hba *phba)
281{ 398{
@@ -347,6 +464,10 @@ lpfc_work_list_done(struct lpfc_hba *phba)
347 lpfc_unblock_mgmt_io(phba); 464 lpfc_unblock_mgmt_io(phba);
348 complete((struct completion *)(evtp->evt_arg2)); 465 complete((struct completion *)(evtp->evt_arg2));
349 break; 466 break;
467 case LPFC_EVT_FASTPATH_MGMT_EVT:
468 lpfc_send_fastpath_evt(phba, evtp);
469 free_evt = 0;
470 break;
350 } 471 }
351 if (free_evt) 472 if (free_evt)
352 kfree(evtp); 473 kfree(evtp);
@@ -371,6 +492,7 @@ lpfc_work_done(struct lpfc_hba *phba)
371 spin_unlock_irq(&phba->hbalock); 492 spin_unlock_irq(&phba->hbalock);
372 493
373 if (ha_copy & HA_ERATT) 494 if (ha_copy & HA_ERATT)
495 /* Handle the error attention event */
374 lpfc_handle_eratt(phba); 496 lpfc_handle_eratt(phba);
375 497
376 if (ha_copy & HA_MBATT) 498 if (ha_copy & HA_MBATT)
@@ -378,6 +500,7 @@ lpfc_work_done(struct lpfc_hba *phba)
378 500
379 if (ha_copy & HA_LATT) 501 if (ha_copy & HA_LATT)
380 lpfc_handle_latt(phba); 502 lpfc_handle_latt(phba);
503
381 vports = lpfc_create_vport_work_array(phba); 504 vports = lpfc_create_vport_work_array(phba);
382 if (vports != NULL) 505 if (vports != NULL)
383 for(i = 0; i <= phba->max_vpi; i++) { 506 for(i = 0; i <= phba->max_vpi; i++) {
@@ -1013,14 +1136,10 @@ out:
1013} 1136}
1014 1137
1015static void 1138static void
1016lpfc_mbx_issue_link_down(struct lpfc_hba *phba) 1139lpfc_enable_la(struct lpfc_hba *phba)
1017{ 1140{
1018 uint32_t control; 1141 uint32_t control;
1019 struct lpfc_sli *psli = &phba->sli; 1142 struct lpfc_sli *psli = &phba->sli;
1020
1021 lpfc_linkdown(phba);
1022
1023 /* turn on Link Attention interrupts - no CLEAR_LA needed */
1024 spin_lock_irq(&phba->hbalock); 1143 spin_lock_irq(&phba->hbalock);
1025 psli->sli_flag |= LPFC_PROCESS_LA; 1144 psli->sli_flag |= LPFC_PROCESS_LA;
1026 control = readl(phba->HCregaddr); 1145 control = readl(phba->HCregaddr);
@@ -1030,6 +1149,15 @@ lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
1030 spin_unlock_irq(&phba->hbalock); 1149 spin_unlock_irq(&phba->hbalock);
1031} 1150}
1032 1151
1152static void
1153lpfc_mbx_issue_link_down(struct lpfc_hba *phba)
1154{
1155 lpfc_linkdown(phba);
1156 lpfc_enable_la(phba);
1157 /* turn on Link Attention interrupts - no CLEAR_LA needed */
1158}
1159
1160
1033/* 1161/*
1034 * This routine handles processing a READ_LA mailbox 1162 * This routine handles processing a READ_LA mailbox
1035 * command upon completion. It is setup in the LPFC_MBOXQ 1163 * command upon completion. It is setup in the LPFC_MBOXQ
@@ -1077,8 +1205,12 @@ lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1077 } 1205 }
1078 1206
1079 phba->fc_eventTag = la->eventTag; 1207 phba->fc_eventTag = la->eventTag;
1208 if (la->mm)
1209 phba->sli.sli_flag |= LPFC_MENLO_MAINT;
1210 else
1211 phba->sli.sli_flag &= ~LPFC_MENLO_MAINT;
1080 1212
1081 if (la->attType == AT_LINK_UP) { 1213 if (la->attType == AT_LINK_UP && (!la->mm)) {
1082 phba->fc_stat.LinkUp++; 1214 phba->fc_stat.LinkUp++;
1083 if (phba->link_flag & LS_LOOPBACK_MODE) { 1215 if (phba->link_flag & LS_LOOPBACK_MODE) {
1084 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 1216 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
@@ -1090,13 +1222,15 @@ lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1090 } else { 1222 } else {
1091 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 1223 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1092 "1303 Link Up Event x%x received " 1224 "1303 Link Up Event x%x received "
1093 "Data: x%x x%x x%x x%x\n", 1225 "Data: x%x x%x x%x x%x x%x x%x %d\n",
1094 la->eventTag, phba->fc_eventTag, 1226 la->eventTag, phba->fc_eventTag,
1095 la->granted_AL_PA, la->UlnkSpeed, 1227 la->granted_AL_PA, la->UlnkSpeed,
1096 phba->alpa_map[0]); 1228 phba->alpa_map[0],
1229 la->mm, la->fa,
1230 phba->wait_4_mlo_maint_flg);
1097 } 1231 }
1098 lpfc_mbx_process_link_up(phba, la); 1232 lpfc_mbx_process_link_up(phba, la);
1099 } else { 1233 } else if (la->attType == AT_LINK_DOWN) {
1100 phba->fc_stat.LinkDown++; 1234 phba->fc_stat.LinkDown++;
1101 if (phba->link_flag & LS_LOOPBACK_MODE) { 1235 if (phba->link_flag & LS_LOOPBACK_MODE) {
1102 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 1236 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
@@ -1109,11 +1243,46 @@ lpfc_mbx_cmpl_read_la(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1109 else { 1243 else {
1110 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, 1244 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1111 "1305 Link Down Event x%x received " 1245 "1305 Link Down Event x%x received "
1246 "Data: x%x x%x x%x x%x x%x\n",
1247 la->eventTag, phba->fc_eventTag,
1248 phba->pport->port_state, vport->fc_flag,
1249 la->mm, la->fa);
1250 }
1251 lpfc_mbx_issue_link_down(phba);
1252 }
1253 if (la->mm && la->attType == AT_LINK_UP) {
1254 if (phba->link_state != LPFC_LINK_DOWN) {
1255 phba->fc_stat.LinkDown++;
1256 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1257 "1312 Link Down Event x%x received "
1258 "Data: x%x x%x x%x\n",
1259 la->eventTag, phba->fc_eventTag,
1260 phba->pport->port_state, vport->fc_flag);
1261 lpfc_mbx_issue_link_down(phba);
1262 } else
1263 lpfc_enable_la(phba);
1264
1265 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1266 "1310 Menlo Maint Mode Link up Event x%x rcvd "
1112 "Data: x%x x%x x%x\n", 1267 "Data: x%x x%x x%x\n",
1113 la->eventTag, phba->fc_eventTag, 1268 la->eventTag, phba->fc_eventTag,
1114 phba->pport->port_state, vport->fc_flag); 1269 phba->pport->port_state, vport->fc_flag);
1270 /*
1271 * The cmnd that triggered this will be waiting for this
1272 * signal.
1273 */
1274 /* WAKEUP for MENLO_SET_MODE or MENLO_RESET command. */
1275 if (phba->wait_4_mlo_maint_flg) {
1276 phba->wait_4_mlo_maint_flg = 0;
1277 wake_up_interruptible(&phba->wait_4_mlo_m_q);
1115 } 1278 }
1116 lpfc_mbx_issue_link_down(phba); 1279 }
1280
1281 if (la->fa) {
1282 if (la->mm)
1283 lpfc_issue_clear_la(phba, vport);
1284 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1285 "1311 fa %d\n", la->fa);
1117 } 1286 }
1118 1287
1119lpfc_mbx_cmpl_read_la_free_mbuf: 1288lpfc_mbx_cmpl_read_la_free_mbuf:
@@ -1177,7 +1346,7 @@ lpfc_mbx_cmpl_unreg_vpi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1177 scsi_host_put(shost); 1346 scsi_host_put(shost);
1178} 1347}
1179 1348
1180void 1349int
1181lpfc_mbx_unreg_vpi(struct lpfc_vport *vport) 1350lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
1182{ 1351{
1183 struct lpfc_hba *phba = vport->phba; 1352 struct lpfc_hba *phba = vport->phba;
@@ -1186,7 +1355,7 @@ lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
1186 1355
1187 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); 1356 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1188 if (!mbox) 1357 if (!mbox)
1189 return; 1358 return 1;
1190 1359
1191 lpfc_unreg_vpi(phba, vport->vpi, mbox); 1360 lpfc_unreg_vpi(phba, vport->vpi, mbox);
1192 mbox->vport = vport; 1361 mbox->vport = vport;
@@ -1197,7 +1366,9 @@ lpfc_mbx_unreg_vpi(struct lpfc_vport *vport)
1197 "1800 Could not issue unreg_vpi\n"); 1366 "1800 Could not issue unreg_vpi\n");
1198 mempool_free(mbox, phba->mbox_mem_pool); 1367 mempool_free(mbox, phba->mbox_mem_pool);
1199 vport->unreg_vpi_cmpl = VPORT_ERROR; 1368 vport->unreg_vpi_cmpl = VPORT_ERROR;
1369 return rc;
1200 } 1370 }
1371 return 0;
1201} 1372}
1202 1373
1203static void 1374static void
@@ -1553,6 +1724,22 @@ lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1553 */ 1724 */
1554 lpfc_register_remote_port(vport, ndlp); 1725 lpfc_register_remote_port(vport, ndlp);
1555 } 1726 }
1727 if ((new_state == NLP_STE_MAPPED_NODE) &&
1728 (vport->stat_data_enabled)) {
1729 /*
1730 * A new target is discovered, if there is no buffer for
1731 * statistical data collection allocate buffer.
1732 */
1733 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
1734 sizeof(struct lpfc_scsicmd_bkt),
1735 GFP_KERNEL);
1736
1737 if (!ndlp->lat_data)
1738 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
1739 "0286 lpfc_nlp_state_cleanup failed to "
1740 "allocate statistical data buffer DID "
1741 "0x%x\n", ndlp->nlp_DID);
1742 }
1556 /* 1743 /*
1557 * if we added to Mapped list, but the remote port 1744 * if we added to Mapped list, but the remote port
1558 * registration failed or assigned a target id outside 1745 * registration failed or assigned a target id outside
@@ -2786,7 +2973,7 @@ restart_disc:
2786 2973
2787 default: 2974 default:
2788 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 2975 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2789 "0229 Unexpected discovery timeout, " 2976 "0273 Unexpected discovery timeout, "
2790 "vport State x%x\n", vport->port_state); 2977 "vport State x%x\n", vport->port_state);
2791 break; 2978 break;
2792 } 2979 }
@@ -2940,6 +3127,8 @@ lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2940 INIT_LIST_HEAD(&ndlp->nlp_listp); 3127 INIT_LIST_HEAD(&ndlp->nlp_listp);
2941 kref_init(&ndlp->kref); 3128 kref_init(&ndlp->kref);
2942 NLP_INT_NODE_ACT(ndlp); 3129 NLP_INT_NODE_ACT(ndlp);
3130 atomic_set(&ndlp->cmd_pending, 0);
3131 ndlp->cmd_qdepth = LPFC_MAX_TGT_QDEPTH;
2943 3132
2944 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE, 3133 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
2945 "node init: did:x%x", 3134 "node init: did:x%x",
@@ -2979,8 +3168,10 @@ lpfc_nlp_release(struct kref *kref)
2979 spin_unlock_irqrestore(&phba->ndlp_lock, flags); 3168 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
2980 3169
2981 /* free ndlp memory for final ndlp release */ 3170 /* free ndlp memory for final ndlp release */
2982 if (NLP_CHK_FREE_REQ(ndlp)) 3171 if (NLP_CHK_FREE_REQ(ndlp)) {
3172 kfree(ndlp->lat_data);
2983 mempool_free(ndlp, ndlp->vport->phba->nlp_mem_pool); 3173 mempool_free(ndlp, ndlp->vport->phba->nlp_mem_pool);
3174 }
2984} 3175}
2985 3176
2986/* This routine bumps the reference count for a ndlp structure to ensure 3177/* This routine bumps the reference count for a ndlp structure to ensure
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index 7773b949aa7c..5de5dabbbee6 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -1107,6 +1107,8 @@ typedef struct {
1107/* Start FireFly Register definitions */ 1107/* Start FireFly Register definitions */
1108#define PCI_VENDOR_ID_EMULEX 0x10df 1108#define PCI_VENDOR_ID_EMULEX 0x10df
1109#define PCI_DEVICE_ID_FIREFLY 0x1ae5 1109#define PCI_DEVICE_ID_FIREFLY 0x1ae5
1110#define PCI_DEVICE_ID_PROTEUS_VF 0xe100
1111#define PCI_DEVICE_ID_PROTEUS_PF 0xe180
1110#define PCI_DEVICE_ID_SAT_SMB 0xf011 1112#define PCI_DEVICE_ID_SAT_SMB 0xf011
1111#define PCI_DEVICE_ID_SAT_MID 0xf015 1113#define PCI_DEVICE_ID_SAT_MID 0xf015
1112#define PCI_DEVICE_ID_RFLY 0xf095 1114#define PCI_DEVICE_ID_RFLY 0xf095
@@ -1133,10 +1135,12 @@ typedef struct {
1133#define PCI_DEVICE_ID_LP11000S 0xfc10 1135#define PCI_DEVICE_ID_LP11000S 0xfc10
1134#define PCI_DEVICE_ID_LPE11000S 0xfc20 1136#define PCI_DEVICE_ID_LPE11000S 0xfc20
1135#define PCI_DEVICE_ID_SAT_S 0xfc40 1137#define PCI_DEVICE_ID_SAT_S 0xfc40
1138#define PCI_DEVICE_ID_PROTEUS_S 0xfc50
1136#define PCI_DEVICE_ID_HELIOS 0xfd00 1139#define PCI_DEVICE_ID_HELIOS 0xfd00
1137#define PCI_DEVICE_ID_HELIOS_SCSP 0xfd11 1140#define PCI_DEVICE_ID_HELIOS_SCSP 0xfd11
1138#define PCI_DEVICE_ID_HELIOS_DCSP 0xfd12 1141#define PCI_DEVICE_ID_HELIOS_DCSP 0xfd12
1139#define PCI_DEVICE_ID_ZEPHYR 0xfe00 1142#define PCI_DEVICE_ID_ZEPHYR 0xfe00
1143#define PCI_DEVICE_ID_HORNET 0xfe05
1140#define PCI_DEVICE_ID_ZEPHYR_SCSP 0xfe11 1144#define PCI_DEVICE_ID_ZEPHYR_SCSP 0xfe11
1141#define PCI_DEVICE_ID_ZEPHYR_DCSP 0xfe12 1145#define PCI_DEVICE_ID_ZEPHYR_DCSP 0xfe12
1142 1146
@@ -1154,6 +1158,7 @@ typedef struct {
1154#define ZEPHYR_JEDEC_ID 0x0577 1158#define ZEPHYR_JEDEC_ID 0x0577
1155#define VIPER_JEDEC_ID 0x4838 1159#define VIPER_JEDEC_ID 0x4838
1156#define SATURN_JEDEC_ID 0x1004 1160#define SATURN_JEDEC_ID 0x1004
1161#define HORNET_JDEC_ID 0x2057706D
1157 1162
1158#define JEDEC_ID_MASK 0x0FFFF000 1163#define JEDEC_ID_MASK 0x0FFFF000
1159#define JEDEC_ID_SHIFT 12 1164#define JEDEC_ID_SHIFT 12
@@ -1198,6 +1203,18 @@ typedef struct { /* FireFly BIU registers */
1198#define HA_RXATT 0x00000008 /* Bit 3 */ 1203#define HA_RXATT 0x00000008 /* Bit 3 */
1199#define HA_RXMASK 0x0000000f 1204#define HA_RXMASK 0x0000000f
1200 1205
1206#define HA_R0_CLR_MSK (HA_R0RE_REQ | HA_R0CE_RSP | HA_R0ATT)
1207#define HA_R1_CLR_MSK (HA_R1RE_REQ | HA_R1CE_RSP | HA_R1ATT)
1208#define HA_R2_CLR_MSK (HA_R2RE_REQ | HA_R2CE_RSP | HA_R2ATT)
1209#define HA_R3_CLR_MSK (HA_R3RE_REQ | HA_R3CE_RSP | HA_R3ATT)
1210
1211#define HA_R0_POS 3
1212#define HA_R1_POS 7
1213#define HA_R2_POS 11
1214#define HA_R3_POS 15
1215#define HA_LE_POS 29
1216#define HA_MB_POS 30
1217#define HA_ER_POS 31
1201/* Chip Attention Register */ 1218/* Chip Attention Register */
1202 1219
1203#define CA_REG_OFFSET 4 /* Byte offset from register base address */ 1220#define CA_REG_OFFSET 4 /* Byte offset from register base address */
@@ -1235,7 +1252,7 @@ typedef struct { /* FireFly BIU registers */
1235 1252
1236/* Host Control Register */ 1253/* Host Control Register */
1237 1254
1238#define HC_REG_OFFSET 12 /* Word offset from register base address */ 1255#define HC_REG_OFFSET 12 /* Byte offset from register base address */
1239 1256
1240#define HC_MBINT_ENA 0x00000001 /* Bit 0 */ 1257#define HC_MBINT_ENA 0x00000001 /* Bit 0 */
1241#define HC_R0INT_ENA 0x00000002 /* Bit 1 */ 1258#define HC_R0INT_ENA 0x00000002 /* Bit 1 */
@@ -1248,6 +1265,19 @@ typedef struct { /* FireFly BIU registers */
1248#define HC_LAINT_ENA 0x20000000 /* Bit 29 */ 1265#define HC_LAINT_ENA 0x20000000 /* Bit 29 */
1249#define HC_ERINT_ENA 0x80000000 /* Bit 31 */ 1266#define HC_ERINT_ENA 0x80000000 /* Bit 31 */
1250 1267
1268/* Message Signaled Interrupt eXtension (MSI-X) message identifiers */
1269#define MSIX_DFLT_ID 0
1270#define MSIX_RNG0_ID 0
1271#define MSIX_RNG1_ID 1
1272#define MSIX_RNG2_ID 2
1273#define MSIX_RNG3_ID 3
1274
1275#define MSIX_LINK_ID 4
1276#define MSIX_MBOX_ID 5
1277
1278#define MSIX_SPARE0_ID 6
1279#define MSIX_SPARE1_ID 7
1280
1251/* Mailbox Commands */ 1281/* Mailbox Commands */
1252#define MBX_SHUTDOWN 0x00 /* terminate testing */ 1282#define MBX_SHUTDOWN 0x00 /* terminate testing */
1253#define MBX_LOAD_SM 0x01 1283#define MBX_LOAD_SM 0x01
@@ -1285,10 +1315,14 @@ typedef struct { /* FireFly BIU registers */
1285#define MBX_KILL_BOARD 0x24 1315#define MBX_KILL_BOARD 0x24
1286#define MBX_CONFIG_FARP 0x25 1316#define MBX_CONFIG_FARP 0x25
1287#define MBX_BEACON 0x2A 1317#define MBX_BEACON 0x2A
1318#define MBX_CONFIG_MSI 0x30
1288#define MBX_HEARTBEAT 0x31 1319#define MBX_HEARTBEAT 0x31
1289#define MBX_WRITE_VPARMS 0x32 1320#define MBX_WRITE_VPARMS 0x32
1290#define MBX_ASYNCEVT_ENABLE 0x33 1321#define MBX_ASYNCEVT_ENABLE 0x33
1291 1322
1323#define MBX_PORT_CAPABILITIES 0x3B
1324#define MBX_PORT_IOV_CONTROL 0x3C
1325
1292#define MBX_CONFIG_HBQ 0x7C 1326#define MBX_CONFIG_HBQ 0x7C
1293#define MBX_LOAD_AREA 0x81 1327#define MBX_LOAD_AREA 0x81
1294#define MBX_RUN_BIU_DIAG64 0x84 1328#define MBX_RUN_BIU_DIAG64 0x84
@@ -1474,24 +1508,18 @@ struct ulp_bde64 { /* SLI-2 */
1474 uint32_t bdeFlags:8; /* BDE Flags 0 IS A SUPPORTED 1508 uint32_t bdeFlags:8; /* BDE Flags 0 IS A SUPPORTED
1475 VALUE !! */ 1509 VALUE !! */
1476#endif 1510#endif
1477 1511#define BUFF_TYPE_BDE_64 0x00 /* BDE (Host_resident) */
1478#define BUFF_USE_RSVD 0x01 /* bdeFlags */ 1512#define BUFF_TYPE_BDE_IMMED 0x01 /* Immediate Data BDE */
1479#define BUFF_USE_INTRPT 0x02 /* Not Implemented with LP6000 */ 1513#define BUFF_TYPE_BDE_64P 0x02 /* BDE (Port-resident) */
1480#define BUFF_USE_CMND 0x04 /* Optional, 1=cmd/rsp 0=data buffer */ 1514#define BUFF_TYPE_BDE_64I 0x08 /* Input BDE (Host-resident) */
1481#define BUFF_USE_RCV 0x08 /* "" "", 1=rcv buffer, 0=xmit 1515#define BUFF_TYPE_BDE_64IP 0x0A /* Input BDE (Port-resident) */
1482 buffer */ 1516#define BUFF_TYPE_BLP_64 0x40 /* BLP (Host-resident) */
1483#define BUFF_TYPE_32BIT 0x10 /* "" "", 1=32 bit addr 0=64 bit 1517#define BUFF_TYPE_BLP_64P 0x42 /* BLP (Port-resident) */
1484 addr */
1485#define BUFF_TYPE_SPECIAL 0x20 /* Not Implemented with LP6000 */
1486#define BUFF_TYPE_BDL 0x40 /* Optional, may be set in BDL */
1487#define BUFF_TYPE_INVALID 0x80 /* "" "" */
1488 } f; 1518 } f;
1489 } tus; 1519 } tus;
1490 uint32_t addrLow; 1520 uint32_t addrLow;
1491 uint32_t addrHigh; 1521 uint32_t addrHigh;
1492}; 1522};
1493#define BDE64_SIZE_WORD 0
1494#define BPL64_SIZE_WORD 0x40
1495 1523
1496typedef struct ULP_BDL { /* SLI-2 */ 1524typedef struct ULP_BDL { /* SLI-2 */
1497#ifdef __BIG_ENDIAN_BITFIELD 1525#ifdef __BIG_ENDIAN_BITFIELD
@@ -2201,7 +2229,10 @@ typedef struct {
2201typedef struct { 2229typedef struct {
2202 uint32_t eventTag; /* Event tag */ 2230 uint32_t eventTag; /* Event tag */
2203#ifdef __BIG_ENDIAN_BITFIELD 2231#ifdef __BIG_ENDIAN_BITFIELD
2204 uint32_t rsvd1:22; 2232 uint32_t rsvd1:19;
2233 uint32_t fa:1;
2234 uint32_t mm:1; /* Menlo Maintenance mode enabled */
2235 uint32_t rx:1;
2205 uint32_t pb:1; 2236 uint32_t pb:1;
2206 uint32_t il:1; 2237 uint32_t il:1;
2207 uint32_t attType:8; 2238 uint32_t attType:8;
@@ -2209,7 +2240,10 @@ typedef struct {
2209 uint32_t attType:8; 2240 uint32_t attType:8;
2210 uint32_t il:1; 2241 uint32_t il:1;
2211 uint32_t pb:1; 2242 uint32_t pb:1;
2212 uint32_t rsvd1:22; 2243 uint32_t rx:1;
2244 uint32_t mm:1;
2245 uint32_t fa:1;
2246 uint32_t rsvd1:19;
2213#endif 2247#endif
2214 2248
2215#define AT_RESERVED 0x00 /* Reserved - attType */ 2249#define AT_RESERVED 0x00 /* Reserved - attType */
@@ -2230,6 +2264,7 @@ typedef struct {
2230 2264
2231#define TOPOLOGY_PT_PT 0x01 /* Topology is pt-pt / pt-fabric */ 2265#define TOPOLOGY_PT_PT 0x01 /* Topology is pt-pt / pt-fabric */
2232#define TOPOLOGY_LOOP 0x02 /* Topology is FC-AL */ 2266#define TOPOLOGY_LOOP 0x02 /* Topology is FC-AL */
2267#define TOPOLOGY_LNK_MENLO_MAINTENANCE 0x05 /* maint mode zephtr to menlo */
2233 2268
2234 union { 2269 union {
2235 struct ulp_bde lilpBde; /* This BDE points to a 128 byte buffer 2270 struct ulp_bde lilpBde; /* This BDE points to a 128 byte buffer
@@ -2324,6 +2359,36 @@ typedef struct {
2324#define DMP_RSP_OFFSET 0x14 /* word 5 contains first word of rsp */ 2359#define DMP_RSP_OFFSET 0x14 /* word 5 contains first word of rsp */
2325#define DMP_RSP_SIZE 0x6C /* maximum of 27 words of rsp data */ 2360#define DMP_RSP_SIZE 0x6C /* maximum of 27 words of rsp data */
2326 2361
2362/* Structure for MB Command UPDATE_CFG (0x1B) */
2363
2364struct update_cfg_var {
2365#ifdef __BIG_ENDIAN_BITFIELD
2366 uint32_t rsvd2:16;
2367 uint32_t type:8;
2368 uint32_t rsvd:1;
2369 uint32_t ra:1;
2370 uint32_t co:1;
2371 uint32_t cv:1;
2372 uint32_t req:4;
2373 uint32_t entry_length:16;
2374 uint32_t region_id:16;
2375#else /* __LITTLE_ENDIAN_BITFIELD */
2376 uint32_t req:4;
2377 uint32_t cv:1;
2378 uint32_t co:1;
2379 uint32_t ra:1;
2380 uint32_t rsvd:1;
2381 uint32_t type:8;
2382 uint32_t rsvd2:16;
2383 uint32_t region_id:16;
2384 uint32_t entry_length:16;
2385#endif
2386
2387 uint32_t resp_info;
2388 uint32_t byte_cnt;
2389 uint32_t data_offset;
2390};
2391
2327struct hbq_mask { 2392struct hbq_mask {
2328#ifdef __BIG_ENDIAN_BITFIELD 2393#ifdef __BIG_ENDIAN_BITFIELD
2329 uint8_t tmatch; 2394 uint8_t tmatch;
@@ -2560,6 +2625,40 @@ typedef struct {
2560 2625
2561} CONFIG_PORT_VAR; 2626} CONFIG_PORT_VAR;
2562 2627
2628/* Structure for MB Command CONFIG_MSI (0x30) */
2629struct config_msi_var {
2630#ifdef __BIG_ENDIAN_BITFIELD
2631 uint32_t dfltMsgNum:8; /* Default message number */
2632 uint32_t rsvd1:11; /* Reserved */
2633 uint32_t NID:5; /* Number of secondary attention IDs */
2634 uint32_t rsvd2:5; /* Reserved */
2635 uint32_t dfltPresent:1; /* Default message number present */
2636 uint32_t addFlag:1; /* Add association flag */
2637 uint32_t reportFlag:1; /* Report association flag */
2638#else /* __LITTLE_ENDIAN_BITFIELD */
2639 uint32_t reportFlag:1; /* Report association flag */
2640 uint32_t addFlag:1; /* Add association flag */
2641 uint32_t dfltPresent:1; /* Default message number present */
2642 uint32_t rsvd2:5; /* Reserved */
2643 uint32_t NID:5; /* Number of secondary attention IDs */
2644 uint32_t rsvd1:11; /* Reserved */
2645 uint32_t dfltMsgNum:8; /* Default message number */
2646#endif
2647 uint32_t attentionConditions[2];
2648 uint8_t attentionId[16];
2649 uint8_t messageNumberByHA[64];
2650 uint8_t messageNumberByID[16];
2651 uint32_t autoClearHA[2];
2652#ifdef __BIG_ENDIAN_BITFIELD
2653 uint32_t rsvd3:16;
2654 uint32_t autoClearID:16;
2655#else /* __LITTLE_ENDIAN_BITFIELD */
2656 uint32_t autoClearID:16;
2657 uint32_t rsvd3:16;
2658#endif
2659 uint32_t rsvd4;
2660};
2661
2563/* SLI-2 Port Control Block */ 2662/* SLI-2 Port Control Block */
2564 2663
2565/* SLIM POINTER */ 2664/* SLIM POINTER */
@@ -2678,10 +2777,12 @@ typedef union {
2678 * NEW_FEATURE 2777 * NEW_FEATURE
2679 */ 2778 */
2680 struct config_hbq_var varCfgHbq;/* cmd = 0x7c (CONFIG_HBQ) */ 2779 struct config_hbq_var varCfgHbq;/* cmd = 0x7c (CONFIG_HBQ) */
2780 struct update_cfg_var varUpdateCfg; /* cmd = 0x1B (UPDATE_CFG)*/
2681 CONFIG_PORT_VAR varCfgPort; /* cmd = 0x88 (CONFIG_PORT) */ 2781 CONFIG_PORT_VAR varCfgPort; /* cmd = 0x88 (CONFIG_PORT) */
2682 REG_VPI_VAR varRegVpi; /* cmd = 0x96 (REG_VPI) */ 2782 REG_VPI_VAR varRegVpi; /* cmd = 0x96 (REG_VPI) */
2683 UNREG_VPI_VAR varUnregVpi; /* cmd = 0x97 (UNREG_VPI) */ 2783 UNREG_VPI_VAR varUnregVpi; /* cmd = 0x97 (UNREG_VPI) */
2684 ASYNCEVT_ENABLE_VAR varCfgAsyncEvent; /*cmd = x33 (CONFIG_ASYNC) */ 2784 ASYNCEVT_ENABLE_VAR varCfgAsyncEvent; /*cmd = x33 (CONFIG_ASYNC) */
2785 struct config_msi_var varCfgMSI;/* cmd = x30 (CONFIG_MSI) */
2685} MAILVARIANTS; 2786} MAILVARIANTS;
2686 2787
2687/* 2788/*
@@ -2715,11 +2816,19 @@ struct sli3_pgp {
2715 uint32_t hbq_get[16]; 2816 uint32_t hbq_get[16];
2716}; 2817};
2717 2818
2718typedef union { 2819struct sli3_inb_pgp {
2719 struct sli2_desc s2; 2820 uint32_t ha_copy;
2720 struct sli3_desc s3; 2821 uint32_t counter;
2721 struct sli3_pgp s3_pgp; 2822 struct lpfc_pgp port[MAX_RINGS];
2722} SLI_VAR; 2823 uint32_t hbq_get[16];
2824};
2825
2826union sli_var {
2827 struct sli2_desc s2;
2828 struct sli3_desc s3;
2829 struct sli3_pgp s3_pgp;
2830 struct sli3_inb_pgp s3_inb_pgp;
2831};
2723 2832
2724typedef struct { 2833typedef struct {
2725#ifdef __BIG_ENDIAN_BITFIELD 2834#ifdef __BIG_ENDIAN_BITFIELD
@@ -2737,7 +2846,7 @@ typedef struct {
2737#endif 2846#endif
2738 2847
2739 MAILVARIANTS un; 2848 MAILVARIANTS un;
2740 SLI_VAR us; 2849 union sli_var us;
2741} MAILBOX_t; 2850} MAILBOX_t;
2742 2851
2743/* 2852/*
@@ -3105,6 +3214,27 @@ struct que_xri64cx_ext_fields {
3105 struct lpfc_hbq_entry buff[5]; 3214 struct lpfc_hbq_entry buff[5];
3106}; 3215};
3107 3216
3217#define LPFC_EXT_DATA_BDE_COUNT 3
3218struct fcp_irw_ext {
3219 uint32_t io_tag64_low;
3220 uint32_t io_tag64_high;
3221#ifdef __BIG_ENDIAN_BITFIELD
3222 uint8_t reserved1;
3223 uint8_t reserved2;
3224 uint8_t reserved3;
3225 uint8_t ebde_count;
3226#else /* __LITTLE_ENDIAN */
3227 uint8_t ebde_count;
3228 uint8_t reserved3;
3229 uint8_t reserved2;
3230 uint8_t reserved1;
3231#endif
3232 uint32_t reserved4;
3233 struct ulp_bde64 rbde; /* response bde */
3234 struct ulp_bde64 dbde[LPFC_EXT_DATA_BDE_COUNT]; /* data BDE or BPL */
3235 uint8_t icd[32]; /* immediate command data (32 bytes) */
3236};
3237
3108typedef struct _IOCB { /* IOCB structure */ 3238typedef struct _IOCB { /* IOCB structure */
3109 union { 3239 union {
3110 GENERIC_RSP grsp; /* Generic response */ 3240 GENERIC_RSP grsp; /* Generic response */
@@ -3190,7 +3320,7 @@ typedef struct _IOCB { /* IOCB structure */
3190 3320
3191 /* words 8-31 used for que_xri_cx iocb */ 3321 /* words 8-31 used for que_xri_cx iocb */
3192 struct que_xri64cx_ext_fields que_xri64cx_ext_words; 3322 struct que_xri64cx_ext_fields que_xri64cx_ext_words;
3193 3323 struct fcp_irw_ext fcp_ext;
3194 uint32_t sli3Words[24]; /* 96 extra bytes for SLI-3 */ 3324 uint32_t sli3Words[24]; /* 96 extra bytes for SLI-3 */
3195 } unsli3; 3325 } unsli3;
3196 3326
@@ -3292,3 +3422,10 @@ lpfc_error_lost_link(IOCB_t *iocbp)
3292 iocbp->un.ulpWord[4] == IOERR_LINK_DOWN || 3422 iocbp->un.ulpWord[4] == IOERR_LINK_DOWN ||
3293 iocbp->un.ulpWord[4] == IOERR_SLI_DOWN)); 3423 iocbp->un.ulpWord[4] == IOERR_SLI_DOWN));
3294} 3424}
3425
3426#define MENLO_TRANSPORT_TYPE 0xfe
3427#define MENLO_CONTEXT 0
3428#define MENLO_PU 3
3429#define MENLO_TIMEOUT 30
3430#define SETVAR_MLOMNT 0x103107
3431#define SETVAR_MLORST 0x103007
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index d51a2a4b43eb..909be3301bba 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -36,6 +36,7 @@
36 36
37#include "lpfc_hw.h" 37#include "lpfc_hw.h"
38#include "lpfc_sli.h" 38#include "lpfc_sli.h"
39#include "lpfc_nl.h"
39#include "lpfc_disc.h" 40#include "lpfc_disc.h"
40#include "lpfc_scsi.h" 41#include "lpfc_scsi.h"
41#include "lpfc.h" 42#include "lpfc.h"
@@ -52,17 +53,20 @@ static struct scsi_transport_template *lpfc_transport_template = NULL;
52static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 53static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
53static DEFINE_IDR(lpfc_hba_index); 54static DEFINE_IDR(lpfc_hba_index);
54 55
55/************************************************************************/ 56/**
56/* */ 57 * lpfc_config_port_prep: Perform lpfc initialization prior to config port.
57/* lpfc_config_port_prep */ 58 * @phba: pointer to lpfc hba data structure.
58/* This routine will do LPFC initialization prior to the */ 59 *
59/* CONFIG_PORT mailbox command. This will be initialized */ 60 * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
60/* as a SLI layer callback routine. */ 61 * mailbox command. It retrieves the revision information from the HBA and
61/* This routine returns 0 on success or -ERESTART if it wants */ 62 * collects the Vital Product Data (VPD) about the HBA for preparing the
62/* the SLI layer to reset the HBA and try again. Any */ 63 * configuration of the HBA.
63/* other return value indicates an error. */ 64 *
64/* */ 65 * Return codes:
65/************************************************************************/ 66 * 0 - success.
67 * -ERESTART - requests the SLI layer to reset the HBA and try again.
68 * Any other value - indicates an error.
69 **/
66int 70int
67lpfc_config_port_prep(struct lpfc_hba *phba) 71lpfc_config_port_prep(struct lpfc_hba *phba)
68{ 72{
@@ -180,12 +184,9 @@ lpfc_config_port_prep(struct lpfc_hba *phba)
180 sizeof (phba->RandomData)); 184 sizeof (phba->RandomData));
181 185
182 /* Get adapter VPD information */ 186 /* Get adapter VPD information */
183 pmb->context2 = kmalloc(DMP_RSP_SIZE, GFP_KERNEL);
184 if (!pmb->context2)
185 goto out_free_mbox;
186 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); 187 lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
187 if (!lpfc_vpd_data) 188 if (!lpfc_vpd_data)
188 goto out_free_context2; 189 goto out_free_mbox;
189 190
190 do { 191 do {
191 lpfc_dump_mem(phba, pmb, offset); 192 lpfc_dump_mem(phba, pmb, offset);
@@ -200,21 +201,29 @@ lpfc_config_port_prep(struct lpfc_hba *phba)
200 } 201 }
201 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 202 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
202 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 203 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
203 lpfc_sli_pcimem_bcopy(pmb->context2, lpfc_vpd_data + offset, 204 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
205 lpfc_vpd_data + offset,
204 mb->un.varDmp.word_cnt); 206 mb->un.varDmp.word_cnt);
205 offset += mb->un.varDmp.word_cnt; 207 offset += mb->un.varDmp.word_cnt;
206 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); 208 } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
207 lpfc_parse_vpd(phba, lpfc_vpd_data, offset); 209 lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
208 210
209 kfree(lpfc_vpd_data); 211 kfree(lpfc_vpd_data);
210out_free_context2:
211 kfree(pmb->context2);
212out_free_mbox: 212out_free_mbox:
213 mempool_free(pmb, phba->mbox_mem_pool); 213 mempool_free(pmb, phba->mbox_mem_pool);
214 return 0; 214 return 0;
215} 215}
216 216
217/* Completion handler for config async event mailbox command. */ 217/**
218 * lpfc_config_async_cmpl: Completion handler for config async event mbox cmd.
219 * @phba: pointer to lpfc hba data structure.
220 * @pmboxq: pointer to the driver internal queue element for mailbox command.
221 *
222 * This is the completion handler for driver's configuring asynchronous event
223 * mailbox command to the device. If the mailbox command returns successfully,
224 * it will set internal async event support flag to 1; otherwise, it will
225 * set internal async event support flag to 0.
226 **/
218static void 227static void
219lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 228lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
220{ 229{
@@ -226,16 +235,19 @@ lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
226 return; 235 return;
227} 236}
228 237
229/************************************************************************/ 238/**
230/* */ 239 * lpfc_config_port_post: Perform lpfc initialization after config port.
231/* lpfc_config_port_post */ 240 * @phba: pointer to lpfc hba data structure.
232/* This routine will do LPFC initialization after the */ 241 *
233/* CONFIG_PORT mailbox command. This will be initialized */ 242 * This routine will do LPFC initialization after the CONFIG_PORT mailbox
234/* as a SLI layer callback routine. */ 243 * command call. It performs all internal resource and state setups on the
235/* This routine returns 0 on success. Any other return value */ 244 * port: post IOCB buffers, enable appropriate host interrupt attentions,
236/* indicates an error. */ 245 * ELS ring timers, etc.
237/* */ 246 *
238/************************************************************************/ 247 * Return codes
248 * 0 - success.
249 * Any other value - error.
250 **/
239int 251int
240lpfc_config_port_post(struct lpfc_hba *phba) 252lpfc_config_port_post(struct lpfc_hba *phba)
241{ 253{
@@ -378,6 +390,29 @@ lpfc_config_port_post(struct lpfc_hba *phba)
378 if (phba->sli_rev != 3) 390 if (phba->sli_rev != 3)
379 lpfc_post_rcv_buf(phba); 391 lpfc_post_rcv_buf(phba);
380 392
393 /*
394 * Configure HBA MSI-X attention conditions to messages if MSI-X mode
395 */
396 if (phba->intr_type == MSIX) {
397 rc = lpfc_config_msi(phba, pmb);
398 if (rc) {
399 mempool_free(pmb, phba->mbox_mem_pool);
400 return -EIO;
401 }
402 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
403 if (rc != MBX_SUCCESS) {
404 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
405 "0352 Config MSI mailbox command "
406 "failed, mbxCmd x%x, mbxStatus x%x\n",
407 pmb->mb.mbxCommand, pmb->mb.mbxStatus);
408 mempool_free(pmb, phba->mbox_mem_pool);
409 return -EIO;
410 }
411 }
412
413 /* Initialize ERATT handling flag */
414 phba->hba_flag &= ~HBA_ERATT_HANDLED;
415
381 /* Enable appropriate host interrupts */ 416 /* Enable appropriate host interrupts */
382 spin_lock_irq(&phba->hbalock); 417 spin_lock_irq(&phba->hbalock);
383 status = readl(phba->HCregaddr); 418 status = readl(phba->HCregaddr);
@@ -393,26 +428,26 @@ lpfc_config_port_post(struct lpfc_hba *phba)
393 428
394 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && 429 if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
395 (phba->cfg_poll & DISABLE_FCP_RING_INT)) 430 (phba->cfg_poll & DISABLE_FCP_RING_INT))
396 status &= ~(HC_R0INT_ENA << LPFC_FCP_RING); 431 status &= ~(HC_R0INT_ENA);
397 432
398 writel(status, phba->HCregaddr); 433 writel(status, phba->HCregaddr);
399 readl(phba->HCregaddr); /* flush */ 434 readl(phba->HCregaddr); /* flush */
400 spin_unlock_irq(&phba->hbalock); 435 spin_unlock_irq(&phba->hbalock);
401 436
402 /* 437 /* Set up ring-0 (ELS) timer */
403 * Setup the ring 0 (els) timeout handler 438 timeout = phba->fc_ratov * 2;
404 */
405 timeout = phba->fc_ratov << 1;
406 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout); 439 mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
440 /* Set up heart beat (HB) timer */
407 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL); 441 mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
408 phba->hb_outstanding = 0; 442 phba->hb_outstanding = 0;
409 phba->last_completion_time = jiffies; 443 phba->last_completion_time = jiffies;
444 /* Set up error attention (ERATT) polling timer */
445 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
410 446
411 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed); 447 lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
412 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; 448 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
413 pmb->vport = vport;
414 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
415 lpfc_set_loopback_flag(phba); 449 lpfc_set_loopback_flag(phba);
450 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
416 if (rc != MBX_SUCCESS) { 451 if (rc != MBX_SUCCESS) {
417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 452 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
418 "0454 Adapter failed to init, mbxCmd x%x " 453 "0454 Adapter failed to init, mbxCmd x%x "
@@ -447,19 +482,20 @@ lpfc_config_port_post(struct lpfc_hba *phba)
447 rc); 482 rc);
448 mempool_free(pmb, phba->mbox_mem_pool); 483 mempool_free(pmb, phba->mbox_mem_pool);
449 } 484 }
450 return (0); 485 return 0;
451} 486}
452 487
453/************************************************************************/ 488/**
454/* */ 489 * lpfc_hba_down_prep: Perform lpfc uninitialization prior to HBA reset.
455/* lpfc_hba_down_prep */ 490 * @phba: pointer to lpfc HBA data structure.
456/* This routine will do LPFC uninitialization before the */ 491 *
457/* HBA is reset when bringing down the SLI Layer. This will be */ 492 * This routine will do LPFC uninitialization before the HBA is reset when
458/* initialized as a SLI layer callback routine. */ 493 * bringing down the SLI Layer.
459/* This routine returns 0 on success. Any other return value */ 494 *
460/* indicates an error. */ 495 * Return codes
461/* */ 496 * 0 - success.
462/************************************************************************/ 497 * Any other value - error.
498 **/
463int 499int
464lpfc_hba_down_prep(struct lpfc_hba *phba) 500lpfc_hba_down_prep(struct lpfc_hba *phba)
465{ 501{
@@ -481,15 +517,17 @@ lpfc_hba_down_prep(struct lpfc_hba *phba)
481 return 0; 517 return 0;
482} 518}
483 519
484/************************************************************************/ 520/**
485/* */ 521 * lpfc_hba_down_post: Perform lpfc uninitialization after HBA reset.
486/* lpfc_hba_down_post */ 522 * @phba: pointer to lpfc HBA data structure.
487/* This routine will do uninitialization after the HBA is reset */ 523 *
488/* when bringing down the SLI Layer. */ 524 * This routine will do uninitialization after the HBA is reset when bring
489/* This routine returns 0 on success. Any other return value */ 525 * down the SLI Layer.
490/* indicates an error. */ 526 *
491/* */ 527 * Return codes
492/************************************************************************/ 528 * 0 - sucess.
529 * Any other value - error.
530 **/
493int 531int
494lpfc_hba_down_post(struct lpfc_hba *phba) 532lpfc_hba_down_post(struct lpfc_hba *phba)
495{ 533{
@@ -548,7 +586,18 @@ lpfc_hba_down_post(struct lpfc_hba *phba)
548 return 0; 586 return 0;
549} 587}
550 588
551/* HBA heart beat timeout handler */ 589/**
590 * lpfc_hb_timeout: The HBA-timer timeout handler.
591 * @ptr: unsigned long holds the pointer to lpfc hba data structure.
592 *
593 * This is the HBA-timer timeout handler registered to the lpfc driver. When
594 * this timer fires, a HBA timeout event shall be posted to the lpfc driver
595 * work-port-events bitmap and the worker thread is notified. This timeout
596 * event will be used by the worker thread to invoke the actual timeout
597 * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
598 * be performed in the timeout handler and the HBA timeout event bit shall
599 * be cleared by the worker thread after it has taken the event bitmap out.
600 **/
552static void 601static void
553lpfc_hb_timeout(unsigned long ptr) 602lpfc_hb_timeout(unsigned long ptr)
554{ 603{
@@ -557,17 +606,36 @@ lpfc_hb_timeout(unsigned long ptr)
557 unsigned long iflag; 606 unsigned long iflag;
558 607
559 phba = (struct lpfc_hba *)ptr; 608 phba = (struct lpfc_hba *)ptr;
609
610 /* Check for heart beat timeout conditions */
560 spin_lock_irqsave(&phba->pport->work_port_lock, iflag); 611 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
561 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; 612 tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
562 if (!tmo_posted) 613 if (!tmo_posted)
563 phba->pport->work_port_events |= WORKER_HB_TMO; 614 phba->pport->work_port_events |= WORKER_HB_TMO;
564 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); 615 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
565 616
617 /* Tell the worker thread there is work to do */
566 if (!tmo_posted) 618 if (!tmo_posted)
567 lpfc_worker_wake_up(phba); 619 lpfc_worker_wake_up(phba);
568 return; 620 return;
569} 621}
570 622
623/**
624 * lpfc_hb_mbox_cmpl: The lpfc heart-beat mailbox command callback function.
625 * @phba: pointer to lpfc hba data structure.
626 * @pmboxq: pointer to the driver internal queue element for mailbox command.
627 *
628 * This is the callback function to the lpfc heart-beat mailbox command.
629 * If configured, the lpfc driver issues the heart-beat mailbox command to
630 * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
631 * heart-beat mailbox command is issued, the driver shall set up heart-beat
632 * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
633 * heart-beat outstanding state. Once the mailbox command comes back and
634 * no error conditions detected, the heart-beat mailbox command timer is
635 * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
636 * state is cleared for the next heart-beat. If the timer expired with the
637 * heart-beat outstanding state set, the driver will put the HBA offline.
638 **/
571static void 639static void
572lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 640lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
573{ 641{
@@ -577,6 +645,7 @@ lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
577 phba->hb_outstanding = 0; 645 phba->hb_outstanding = 0;
578 spin_unlock_irqrestore(&phba->hbalock, drvr_flag); 646 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
579 647
648 /* Check and reset heart-beat timer is necessary */
580 mempool_free(pmboxq, phba->mbox_mem_pool); 649 mempool_free(pmboxq, phba->mbox_mem_pool);
581 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && 650 if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
582 !(phba->link_state == LPFC_HBA_ERROR) && 651 !(phba->link_state == LPFC_HBA_ERROR) &&
@@ -586,6 +655,22 @@ lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
586 return; 655 return;
587} 656}
588 657
658/**
659 * lpfc_hb_timeout_handler: The HBA-timer timeout handler.
660 * @phba: pointer to lpfc hba data structure.
661 *
662 * This is the actual HBA-timer timeout handler to be invoked by the worker
663 * thread whenever the HBA timer fired and HBA-timeout event posted. This
664 * handler performs any periodic operations needed for the device. If such
665 * periodic event has already been attended to either in the interrupt handler
666 * or by processing slow-ring or fast-ring events within the HBA-timer
667 * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
668 * the timer for the next timeout period. If lpfc heart-beat mailbox command
669 * is configured and there is no heart-beat mailbox command outstanding, a
670 * heart-beat mailbox is issued and timer set properly. Otherwise, if there
671 * has been a heart-beat mailbox command outstanding, the HBA shall be put
672 * to offline.
673 **/
589void 674void
590lpfc_hb_timeout_handler(struct lpfc_hba *phba) 675lpfc_hb_timeout_handler(struct lpfc_hba *phba)
591{ 676{
@@ -684,6 +769,13 @@ lpfc_hb_timeout_handler(struct lpfc_hba *phba)
684 } 769 }
685} 770}
686 771
772/**
773 * lpfc_offline_eratt: Bring lpfc offline on hardware error attention.
774 * @phba: pointer to lpfc hba data structure.
775 *
776 * This routine is called to bring the HBA offline when HBA hardware error
777 * other than Port Error 6 has been detected.
778 **/
687static void 779static void
688lpfc_offline_eratt(struct lpfc_hba *phba) 780lpfc_offline_eratt(struct lpfc_hba *phba)
689{ 781{
@@ -704,14 +796,16 @@ lpfc_offline_eratt(struct lpfc_hba *phba)
704 return; 796 return;
705} 797}
706 798
707/************************************************************************/ 799/**
708/* */ 800 * lpfc_handle_eratt: The HBA hardware error handler.
709/* lpfc_handle_eratt */ 801 * @phba: pointer to lpfc hba data structure.
710/* This routine will handle processing a Host Attention */ 802 *
711/* Error Status event. This will be initialized */ 803 * This routine is invoked to handle the following HBA hardware error
712/* as a SLI layer callback routine. */ 804 * conditions:
713/* */ 805 * 1 - HBA error attention interrupt
714/************************************************************************/ 806 * 2 - DMA ring index out of range
807 * 3 - Mailbox command came back as unknown
808 **/
715void 809void
716lpfc_handle_eratt(struct lpfc_hba *phba) 810lpfc_handle_eratt(struct lpfc_hba *phba)
717{ 811{
@@ -722,6 +816,7 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
722 unsigned long temperature; 816 unsigned long temperature;
723 struct temp_event temp_event_data; 817 struct temp_event temp_event_data;
724 struct Scsi_Host *shost; 818 struct Scsi_Host *shost;
819 struct lpfc_board_event_header board_event;
725 820
726 /* If the pci channel is offline, ignore possible errors, 821 /* If the pci channel is offline, ignore possible errors,
727 * since we cannot communicate with the pci card anyway. */ 822 * since we cannot communicate with the pci card anyway. */
@@ -731,6 +826,16 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
731 if (!phba->cfg_enable_hba_reset) 826 if (!phba->cfg_enable_hba_reset)
732 return; 827 return;
733 828
829 /* Send an internal error event to mgmt application */
830 board_event.event_type = FC_REG_BOARD_EVENT;
831 board_event.subcategory = LPFC_EVENT_PORTINTERR;
832 shost = lpfc_shost_from_vport(phba->pport);
833 fc_host_post_vendor_event(shost, fc_get_event_number(),
834 sizeof(board_event),
835 (char *) &board_event,
836 SCSI_NL_VID_TYPE_PCI
837 | PCI_VENDOR_ID_EMULEX);
838
734 if (phba->work_hs & HS_FFER6) { 839 if (phba->work_hs & HS_FFER6) {
735 /* Re-establishing Link */ 840 /* Re-establishing Link */
736 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, 841 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
@@ -771,7 +876,7 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
771 temp_event_data.data = (uint32_t)temperature; 876 temp_event_data.data = (uint32_t)temperature;
772 877
773 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 878 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
774 "0459 Adapter maximum temperature exceeded " 879 "0406 Adapter maximum temperature exceeded "
775 "(%ld), taking this port offline " 880 "(%ld), taking this port offline "
776 "Data: x%x x%x x%x\n", 881 "Data: x%x x%x x%x\n",
777 temperature, phba->work_hs, 882 temperature, phba->work_hs,
@@ -791,8 +896,8 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
791 896
792 } else { 897 } else {
793 /* The if clause above forces this code path when the status 898 /* The if clause above forces this code path when the status
794 * failure is a value other than FFER6. Do not call the offline 899 * failure is a value other than FFER6. Do not call the offline
795 * twice. This is the adapter hardware error path. 900 * twice. This is the adapter hardware error path.
796 */ 901 */
797 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
798 "0457 Adapter Hardware Error " 903 "0457 Adapter Hardware Error "
@@ -808,16 +913,16 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
808 913
809 lpfc_offline_eratt(phba); 914 lpfc_offline_eratt(phba);
810 } 915 }
916 return;
811} 917}
812 918
813/************************************************************************/ 919/**
814/* */ 920 * lpfc_handle_latt: The HBA link event handler.
815/* lpfc_handle_latt */ 921 * @phba: pointer to lpfc hba data structure.
816/* This routine will handle processing a Host Attention */ 922 *
817/* Link Status event. This will be initialized */ 923 * This routine is invoked from the worker thread to handle a HBA host
818/* as a SLI layer callback routine. */ 924 * attention link event.
819/* */ 925 **/
820/************************************************************************/
821void 926void
822lpfc_handle_latt(struct lpfc_hba *phba) 927lpfc_handle_latt(struct lpfc_hba *phba)
823{ 928{
@@ -898,12 +1003,20 @@ lpfc_handle_latt_err_exit:
898 return; 1003 return;
899} 1004}
900 1005
901/************************************************************************/ 1006/**
902/* */ 1007 * lpfc_parse_vpd: Parse VPD (Vital Product Data).
903/* lpfc_parse_vpd */ 1008 * @phba: pointer to lpfc hba data structure.
904/* This routine will parse the VPD data */ 1009 * @vpd: pointer to the vital product data.
905/* */ 1010 * @len: length of the vital product data in bytes.
906/************************************************************************/ 1011 *
1012 * This routine parses the Vital Product Data (VPD). The VPD is treated as
1013 * an array of characters. In this routine, the ModelName, ProgramType, and
1014 * ModelDesc, etc. fields of the phba data structure will be populated.
1015 *
1016 * Return codes
1017 * 0 - pointer to the VPD passed in is NULL
1018 * 1 - success
1019 **/
907static int 1020static int
908lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1021lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
909{ 1022{
@@ -1040,12 +1153,25 @@ lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1040 return(1); 1153 return(1);
1041} 1154}
1042 1155
1156/**
1157 * lpfc_get_hba_model_desc: Retrieve HBA device model name and description.
1158 * @phba: pointer to lpfc hba data structure.
1159 * @mdp: pointer to the data structure to hold the derived model name.
1160 * @descp: pointer to the data structure to hold the derived description.
1161 *
1162 * This routine retrieves HBA's description based on its registered PCI device
1163 * ID. The @descp passed into this function points to an array of 256 chars. It
1164 * shall be returned with the model name, maximum speed, and the host bus type.
1165 * The @mdp passed into this function points to an array of 80 chars. When the
1166 * function returns, the @mdp will be filled with the model name.
1167 **/
1043static void 1168static void
1044lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) 1169lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1045{ 1170{
1046 lpfc_vpd_t *vp; 1171 lpfc_vpd_t *vp;
1047 uint16_t dev_id = phba->pcidev->device; 1172 uint16_t dev_id = phba->pcidev->device;
1048 int max_speed; 1173 int max_speed;
1174 int GE = 0;
1049 struct { 1175 struct {
1050 char * name; 1176 char * name;
1051 int max_speed; 1177 int max_speed;
@@ -1177,6 +1303,19 @@ lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1177 case PCI_DEVICE_ID_SAT_S: 1303 case PCI_DEVICE_ID_SAT_S:
1178 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"}; 1304 m = (typeof(m)){"LPe12000-S", max_speed, "PCIe"};
1179 break; 1305 break;
1306 case PCI_DEVICE_ID_HORNET:
1307 m = (typeof(m)){"LP21000", max_speed, "PCIe"};
1308 GE = 1;
1309 break;
1310 case PCI_DEVICE_ID_PROTEUS_VF:
1311 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"};
1312 break;
1313 case PCI_DEVICE_ID_PROTEUS_PF:
1314 m = (typeof(m)) {"LPev12000", max_speed, "PCIe IOV"};
1315 break;
1316 case PCI_DEVICE_ID_PROTEUS_S:
1317 m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"};
1318 break;
1180 default: 1319 default:
1181 m = (typeof(m)){ NULL }; 1320 m = (typeof(m)){ NULL };
1182 break; 1321 break;
@@ -1186,18 +1325,25 @@ lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1186 snprintf(mdp, 79,"%s", m.name); 1325 snprintf(mdp, 79,"%s", m.name);
1187 if (descp && descp[0] == '\0') 1326 if (descp && descp[0] == '\0')
1188 snprintf(descp, 255, 1327 snprintf(descp, 255,
1189 "Emulex %s %dGb %s Fibre Channel Adapter", 1328 "Emulex %s %d%s %s %s",
1190 m.name, m.max_speed, m.bus); 1329 m.name, m.max_speed,
1330 (GE) ? "GE" : "Gb",
1331 m.bus,
1332 (GE) ? "FCoE Adapter" : "Fibre Channel Adapter");
1191} 1333}
1192 1334
1193/**************************************************/ 1335/**
1194/* lpfc_post_buffer */ 1336 * lpfc_post_buffer: Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring.
1195/* */ 1337 * @phba: pointer to lpfc hba data structure.
1196/* This routine will post count buffers to the */ 1338 * @pring: pointer to a IOCB ring.
1197/* ring with the QUE_RING_BUF_CN command. This */ 1339 * @cnt: the number of IOCBs to be posted to the IOCB ring.
1198/* allows 3 buffers / command to be posted. */ 1340 *
1199/* Returns the number of buffers NOT posted. */ 1341 * This routine posts a given number of IOCBs with the associated DMA buffer
1200/**************************************************/ 1342 * descriptors specified by the cnt argument to the given IOCB ring.
1343 *
1344 * Return codes
1345 * The number of IOCBs NOT able to be posted to the IOCB ring.
1346 **/
1201int 1347int
1202lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) 1348lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1203{ 1349{
@@ -1287,12 +1433,17 @@ lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1287 return 0; 1433 return 0;
1288} 1434}
1289 1435
1290/************************************************************************/ 1436/**
1291/* */ 1437 * lpfc_post_rcv_buf: Post the initial receive IOCB buffers to ELS ring.
1292/* lpfc_post_rcv_buf */ 1438 * @phba: pointer to lpfc hba data structure.
1293/* This routine post initial rcv buffers to the configured rings */ 1439 *
1294/* */ 1440 * This routine posts initial receive IOCB buffers to the ELS ring. The
1295/************************************************************************/ 1441 * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1442 * set to 64 IOCBs.
1443 *
1444 * Return codes
1445 * 0 - success (currently always success)
1446 **/
1296static int 1447static int
1297lpfc_post_rcv_buf(struct lpfc_hba *phba) 1448lpfc_post_rcv_buf(struct lpfc_hba *phba)
1298{ 1449{
@@ -1307,11 +1458,13 @@ lpfc_post_rcv_buf(struct lpfc_hba *phba)
1307 1458
1308#define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) 1459#define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1309 1460
1310/************************************************************************/ 1461/**
1311/* */ 1462 * lpfc_sha_init: Set up initial array of hash table entries.
1312/* lpfc_sha_init */ 1463 * @HashResultPointer: pointer to an array as hash table.
1313/* */ 1464 *
1314/************************************************************************/ 1465 * This routine sets up the initial values to the array of hash table entries
1466 * for the LC HBAs.
1467 **/
1315static void 1468static void
1316lpfc_sha_init(uint32_t * HashResultPointer) 1469lpfc_sha_init(uint32_t * HashResultPointer)
1317{ 1470{
@@ -1322,11 +1475,16 @@ lpfc_sha_init(uint32_t * HashResultPointer)
1322 HashResultPointer[4] = 0xC3D2E1F0; 1475 HashResultPointer[4] = 0xC3D2E1F0;
1323} 1476}
1324 1477
1325/************************************************************************/ 1478/**
1326/* */ 1479 * lpfc_sha_iterate: Iterate initial hash table with the working hash table.
1327/* lpfc_sha_iterate */ 1480 * @HashResultPointer: pointer to an initial/result hash table.
1328/* */ 1481 * @HashWorkingPointer: pointer to an working hash table.
1329/************************************************************************/ 1482 *
1483 * This routine iterates an initial hash table pointed by @HashResultPointer
1484 * with the values from the working hash table pointeed by @HashWorkingPointer.
1485 * The results are putting back to the initial hash table, returned through
1486 * the @HashResultPointer as the result hash table.
1487 **/
1330static void 1488static void
1331lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) 1489lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
1332{ 1490{
@@ -1374,22 +1532,29 @@ lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
1374 1532
1375} 1533}
1376 1534
1377/************************************************************************/ 1535/**
1378/* */ 1536 * lpfc_challenge_key: Create challenge key based on WWPN of the HBA.
1379/* lpfc_challenge_key */ 1537 * @RandomChallenge: pointer to the entry of host challenge random number array.
1380/* */ 1538 * @HashWorking: pointer to the entry of the working hash array.
1381/************************************************************************/ 1539 *
1540 * This routine calculates the working hash array referred by @HashWorking
1541 * from the challenge random numbers associated with the host, referred by
1542 * @RandomChallenge. The result is put into the entry of the working hash
1543 * array and returned by reference through @HashWorking.
1544 **/
1382static void 1545static void
1383lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) 1546lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
1384{ 1547{
1385 *HashWorking = (*RandomChallenge ^ *HashWorking); 1548 *HashWorking = (*RandomChallenge ^ *HashWorking);
1386} 1549}
1387 1550
1388/************************************************************************/ 1551/**
1389/* */ 1552 * lpfc_hba_init: Perform special handling for LC HBA initialization.
1390/* lpfc_hba_init */ 1553 * @phba: pointer to lpfc hba data structure.
1391/* */ 1554 * @hbainit: pointer to an array of unsigned 32-bit integers.
1392/************************************************************************/ 1555 *
1556 * This routine performs the special handling for LC HBA initialization.
1557 **/
1393void 1558void
1394lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) 1559lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
1395{ 1560{
@@ -1412,6 +1577,15 @@ lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
1412 kfree(HashWorking); 1577 kfree(HashWorking);
1413} 1578}
1414 1579
1580/**
1581 * lpfc_cleanup: Performs vport cleanups before deleting a vport.
1582 * @vport: pointer to a virtual N_Port data structure.
1583 *
1584 * This routine performs the necessary cleanups before deleting the @vport.
1585 * It invokes the discovery state machine to perform necessary state
1586 * transitions and to release the ndlps associated with the @vport. Note,
1587 * the physical port is treated as @vport 0.
1588 **/
1415void 1589void
1416lpfc_cleanup(struct lpfc_vport *vport) 1590lpfc_cleanup(struct lpfc_vport *vport)
1417{ 1591{
@@ -1459,14 +1633,6 @@ lpfc_cleanup(struct lpfc_vport *vport)
1459 lpfc_disc_state_machine(vport, ndlp, NULL, 1633 lpfc_disc_state_machine(vport, ndlp, NULL,
1460 NLP_EVT_DEVICE_RM); 1634 NLP_EVT_DEVICE_RM);
1461 1635
1462 /* nlp_type zero is not defined, nlp_flag zero also not defined,
1463 * nlp_state is unused, this happens when
1464 * an initiator has logged
1465 * into us so cleanup this ndlp.
1466 */
1467 if ((ndlp->nlp_type == 0) && (ndlp->nlp_flag == 0) &&
1468 (ndlp->nlp_state == 0))
1469 lpfc_nlp_put(ndlp);
1470 } 1636 }
1471 1637
1472 /* At this point, ALL ndlp's should be gone 1638 /* At this point, ALL ndlp's should be gone
@@ -1482,7 +1648,7 @@ lpfc_cleanup(struct lpfc_vport *vport)
1482 &vport->fc_nodes, nlp_listp) { 1648 &vport->fc_nodes, nlp_listp) {
1483 lpfc_printf_vlog(ndlp->vport, KERN_ERR, 1649 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
1484 LOG_NODE, 1650 LOG_NODE,
1485 "0282: did:x%x ndlp:x%p " 1651 "0282 did:x%x ndlp:x%p "
1486 "usgmap:x%x refcnt:%d\n", 1652 "usgmap:x%x refcnt:%d\n",
1487 ndlp->nlp_DID, (void *)ndlp, 1653 ndlp->nlp_DID, (void *)ndlp,
1488 ndlp->nlp_usg_map, 1654 ndlp->nlp_usg_map,
@@ -1498,6 +1664,14 @@ lpfc_cleanup(struct lpfc_vport *vport)
1498 return; 1664 return;
1499} 1665}
1500 1666
1667/**
1668 * lpfc_stop_vport_timers: Stop all the timers associated with a vport.
1669 * @vport: pointer to a virtual N_Port data structure.
1670 *
1671 * This routine stops all the timers associated with a @vport. This function
1672 * is invoked before disabling or deleting a @vport. Note that the physical
1673 * port is treated as @vport 0.
1674 **/
1501void 1675void
1502lpfc_stop_vport_timers(struct lpfc_vport *vport) 1676lpfc_stop_vport_timers(struct lpfc_vport *vport)
1503{ 1677{
@@ -1507,6 +1681,13 @@ lpfc_stop_vport_timers(struct lpfc_vport *vport)
1507 return; 1681 return;
1508} 1682}
1509 1683
1684/**
1685 * lpfc_stop_phba_timers: Stop all the timers associated with an HBA.
1686 * @phba: pointer to lpfc hba data structure.
1687 *
1688 * This routine stops all the timers associated with a HBA. This function is
1689 * invoked before either putting a HBA offline or unloading the driver.
1690 **/
1510static void 1691static void
1511lpfc_stop_phba_timers(struct lpfc_hba *phba) 1692lpfc_stop_phba_timers(struct lpfc_hba *phba)
1512{ 1693{
@@ -1516,9 +1697,20 @@ lpfc_stop_phba_timers(struct lpfc_hba *phba)
1516 del_timer_sync(&phba->fabric_block_timer); 1697 del_timer_sync(&phba->fabric_block_timer);
1517 phba->hb_outstanding = 0; 1698 phba->hb_outstanding = 0;
1518 del_timer_sync(&phba->hb_tmofunc); 1699 del_timer_sync(&phba->hb_tmofunc);
1700 del_timer_sync(&phba->eratt_poll);
1519 return; 1701 return;
1520} 1702}
1521 1703
1704/**
1705 * lpfc_block_mgmt_io: Mark a HBA's management interface as blocked.
1706 * @phba: pointer to lpfc hba data structure.
1707 *
1708 * This routine marks a HBA's management interface as blocked. Once the HBA's
1709 * management interface is marked as blocked, all the user space access to
1710 * the HBA, whether they are from sysfs interface or libdfc interface will
1711 * all be blocked. The HBA is set to block the management interface when the
1712 * driver prepares the HBA interface for online or offline.
1713 **/
1522static void 1714static void
1523lpfc_block_mgmt_io(struct lpfc_hba * phba) 1715lpfc_block_mgmt_io(struct lpfc_hba * phba)
1524{ 1716{
@@ -1529,6 +1721,18 @@ lpfc_block_mgmt_io(struct lpfc_hba * phba)
1529 spin_unlock_irqrestore(&phba->hbalock, iflag); 1721 spin_unlock_irqrestore(&phba->hbalock, iflag);
1530} 1722}
1531 1723
1724/**
1725 * lpfc_online: Initialize and bring a HBA online.
1726 * @phba: pointer to lpfc hba data structure.
1727 *
1728 * This routine initializes the HBA and brings a HBA online. During this
1729 * process, the management interface is blocked to prevent user space access
1730 * to the HBA interfering with the driver initialization.
1731 *
1732 * Return codes
1733 * 0 - successful
1734 * 1 - failed
1735 **/
1532int 1736int
1533lpfc_online(struct lpfc_hba *phba) 1737lpfc_online(struct lpfc_hba *phba)
1534{ 1738{
@@ -1574,6 +1778,17 @@ lpfc_online(struct lpfc_hba *phba)
1574 return 0; 1778 return 0;
1575} 1779}
1576 1780
1781/**
1782 * lpfc_unblock_mgmt_io: Mark a HBA's management interface to be not blocked.
1783 * @phba: pointer to lpfc hba data structure.
1784 *
1785 * This routine marks a HBA's management interface as not blocked. Once the
1786 * HBA's management interface is marked as not blocked, all the user space
1787 * access to the HBA, whether they are from sysfs interface or libdfc
1788 * interface will be allowed. The HBA is set to block the management interface
1789 * when the driver prepares the HBA interface for online or offline and then
1790 * set to unblock the management interface afterwards.
1791 **/
1577void 1792void
1578lpfc_unblock_mgmt_io(struct lpfc_hba * phba) 1793lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
1579{ 1794{
@@ -1584,6 +1799,14 @@ lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
1584 spin_unlock_irqrestore(&phba->hbalock, iflag); 1799 spin_unlock_irqrestore(&phba->hbalock, iflag);
1585} 1800}
1586 1801
1802/**
1803 * lpfc_offline_prep: Prepare a HBA to be brought offline.
1804 * @phba: pointer to lpfc hba data structure.
1805 *
1806 * This routine is invoked to prepare a HBA to be brought offline. It performs
1807 * unregistration login to all the nodes on all vports and flushes the mailbox
1808 * queue to make it ready to be brought offline.
1809 **/
1587void 1810void
1588lpfc_offline_prep(struct lpfc_hba * phba) 1811lpfc_offline_prep(struct lpfc_hba * phba)
1589{ 1812{
@@ -1633,6 +1856,14 @@ lpfc_offline_prep(struct lpfc_hba * phba)
1633 lpfc_sli_flush_mbox_queue(phba); 1856 lpfc_sli_flush_mbox_queue(phba);
1634} 1857}
1635 1858
1859/**
1860 * lpfc_offline: Bring a HBA offline.
1861 * @phba: pointer to lpfc hba data structure.
1862 *
1863 * This routine actually brings a HBA offline. It stops all the timers
1864 * associated with the HBA, brings down the SLI layer, and eventually
1865 * marks the HBA as in offline state for the upper layer protocol.
1866 **/
1636void 1867void
1637lpfc_offline(struct lpfc_hba *phba) 1868lpfc_offline(struct lpfc_hba *phba)
1638{ 1869{
@@ -1670,12 +1901,17 @@ lpfc_offline(struct lpfc_hba *phba)
1670 lpfc_destroy_vport_work_array(phba, vports); 1901 lpfc_destroy_vport_work_array(phba, vports);
1671} 1902}
1672 1903
1673/****************************************************************************** 1904/**
1674* Function name: lpfc_scsi_free 1905 * lpfc_scsi_free: Free all the SCSI buffers and IOCBs from driver lists.
1675* 1906 * @phba: pointer to lpfc hba data structure.
1676* Description: Called from lpfc_pci_remove_one free internal driver resources 1907 *
1677* 1908 * This routine is to free all the SCSI buffers and IOCBs from the driver
1678******************************************************************************/ 1909 * list back to kernel. It is called from lpfc_pci_remove_one to free
1910 * the internal resources before the device is removed from the system.
1911 *
1912 * Return codes
1913 * 0 - successful (for now, it always returns 0)
1914 **/
1679static int 1915static int
1680lpfc_scsi_free(struct lpfc_hba *phba) 1916lpfc_scsi_free(struct lpfc_hba *phba)
1681{ 1917{
@@ -1704,6 +1940,22 @@ lpfc_scsi_free(struct lpfc_hba *phba)
1704 return 0; 1940 return 0;
1705} 1941}
1706 1942
1943/**
1944 * lpfc_create_port: Create an FC port.
1945 * @phba: pointer to lpfc hba data structure.
1946 * @instance: a unique integer ID to this FC port.
1947 * @dev: pointer to the device data structure.
1948 *
1949 * This routine creates a FC port for the upper layer protocol. The FC port
1950 * can be created on top of either a physical port or a virtual port provided
1951 * by the HBA. This routine also allocates a SCSI host data structure (shost)
1952 * and associates the FC port created before adding the shost into the SCSI
1953 * layer.
1954 *
1955 * Return codes
1956 * @vport - pointer to the virtual N_Port data structure.
1957 * NULL - port create failed.
1958 **/
1707struct lpfc_vport * 1959struct lpfc_vport *
1708lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) 1960lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
1709{ 1961{
@@ -1777,6 +2029,13 @@ out:
1777 return NULL; 2029 return NULL;
1778} 2030}
1779 2031
2032/**
2033 * destroy_port: Destroy an FC port.
2034 * @vport: pointer to an lpfc virtual N_Port data structure.
2035 *
2036 * This routine destroys a FC port from the upper layer protocol. All the
2037 * resources associated with the port are released.
2038 **/
1780void 2039void
1781destroy_port(struct lpfc_vport *vport) 2040destroy_port(struct lpfc_vport *vport)
1782{ 2041{
@@ -1797,6 +2056,16 @@ destroy_port(struct lpfc_vport *vport)
1797 return; 2056 return;
1798} 2057}
1799 2058
2059/**
2060 * lpfc_get_instance: Get a unique integer ID.
2061 *
2062 * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2063 * uses the kernel idr facility to perform the task.
2064 *
2065 * Return codes:
2066 * instance - a unique integer ID allocated as the new instance.
2067 * -1 - lpfc get instance failed.
2068 **/
1800int 2069int
1801lpfc_get_instance(void) 2070lpfc_get_instance(void)
1802{ 2071{
@@ -1810,11 +2079,21 @@ lpfc_get_instance(void)
1810 return instance; 2079 return instance;
1811} 2080}
1812 2081
1813/* 2082/**
1814 * Note: there is no scan_start function as adapter initialization 2083 * lpfc_scan_finished: method for SCSI layer to detect whether scan is done.
1815 * will have asynchronously kicked off the link initialization. 2084 * @shost: pointer to SCSI host data structure.
1816 */ 2085 * @time: elapsed time of the scan in jiffies.
1817 2086 *
2087 * This routine is called by the SCSI layer with a SCSI host to determine
2088 * whether the scan host is finished.
2089 *
2090 * Note: there is no scan_start function as adapter initialization will have
2091 * asynchronously kicked off the link initialization.
2092 *
2093 * Return codes
2094 * 0 - SCSI host scan is not over yet.
2095 * 1 - SCSI host scan is over.
2096 **/
1818int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) 2097int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
1819{ 2098{
1820 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2099 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
@@ -1858,6 +2137,13 @@ finished:
1858 return stat; 2137 return stat;
1859} 2138}
1860 2139
2140/**
2141 * lpfc_host_attrib_init: Initialize SCSI host attributes on a FC port.
2142 * @shost: pointer to SCSI host data structure.
2143 *
2144 * This routine initializes a given SCSI host attributes on a FC port. The
2145 * SCSI host can be either on top of a physical port or a virtual port.
2146 **/
1861void lpfc_host_attrib_init(struct Scsi_Host *shost) 2147void lpfc_host_attrib_init(struct Scsi_Host *shost)
1862{ 2148{
1863 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 2149 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
@@ -1906,42 +2192,157 @@ void lpfc_host_attrib_init(struct Scsi_Host *shost)
1906 spin_unlock_irq(shost->host_lock); 2192 spin_unlock_irq(shost->host_lock);
1907} 2193}
1908 2194
2195/**
2196 * lpfc_enable_msix: Enable MSI-X interrupt mode.
2197 * @phba: pointer to lpfc hba data structure.
2198 *
2199 * This routine is invoked to enable the MSI-X interrupt vectors. The kernel
2200 * function pci_enable_msix() is called to enable the MSI-X vectors. Note that
2201 * pci_enable_msix(), once invoked, enables either all or nothing, depending
2202 * on the current availability of PCI vector resources. The device driver is
2203 * responsible for calling the individual request_irq() to register each MSI-X
2204 * vector with a interrupt handler, which is done in this function. Note that
2205 * later when device is unloading, the driver should always call free_irq()
2206 * on all MSI-X vectors it has done request_irq() on before calling
2207 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
2208 * will be left with MSI-X enabled and leaks its vectors.
2209 *
2210 * Return codes
2211 * 0 - sucessful
2212 * other values - error
2213 **/
1909static int 2214static int
1910lpfc_enable_msix(struct lpfc_hba *phba) 2215lpfc_enable_msix(struct lpfc_hba *phba)
1911{ 2216{
1912 int error; 2217 int rc, i;
2218 LPFC_MBOXQ_t *pmb;
1913 2219
1914 phba->msix_entries[0].entry = 0; 2220 /* Set up MSI-X multi-message vectors */
1915 phba->msix_entries[0].vector = 0; 2221 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
2222 phba->msix_entries[i].entry = i;
1916 2223
1917 error = pci_enable_msix(phba->pcidev, phba->msix_entries, 2224 /* Configure MSI-X capability structure */
2225 rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
1918 ARRAY_SIZE(phba->msix_entries)); 2226 ARRAY_SIZE(phba->msix_entries));
1919 if (error) { 2227 if (rc) {
1920 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2228 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1921 "0420 Enable MSI-X failed (%d), continuing " 2229 "0420 Enable MSI-X failed (%d), continuing "
1922 "with MSI\n", error); 2230 "with MSI\n", rc);
1923 pci_disable_msix(phba->pcidev); 2231 goto msi_fail_out;
1924 return error; 2232 } else
2233 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
2234 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2235 "0477 MSI-X entry[%d]: vector=x%x "
2236 "message=%d\n", i,
2237 phba->msix_entries[i].vector,
2238 phba->msix_entries[i].entry);
2239 /*
2240 * Assign MSI-X vectors to interrupt handlers
2241 */
2242
2243 /* vector-0 is associated to slow-path handler */
2244 rc = request_irq(phba->msix_entries[0].vector, &lpfc_sp_intr_handler,
2245 IRQF_SHARED, LPFC_SP_DRIVER_HANDLER_NAME, phba);
2246 if (rc) {
2247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2248 "0421 MSI-X slow-path request_irq failed "
2249 "(%d), continuing with MSI\n", rc);
2250 goto msi_fail_out;
1925 } 2251 }
1926 2252
1927 error = request_irq(phba->msix_entries[0].vector, lpfc_intr_handler, 0, 2253 /* vector-1 is associated to fast-path handler */
1928 LPFC_DRIVER_NAME, phba); 2254 rc = request_irq(phba->msix_entries[1].vector, &lpfc_fp_intr_handler,
1929 if (error) { 2255 IRQF_SHARED, LPFC_FP_DRIVER_HANDLER_NAME, phba);
2256
2257 if (rc) {
1930 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 2258 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1931 "0421 MSI-X request_irq failed (%d), " 2259 "0429 MSI-X fast-path request_irq failed "
1932 "continuing with MSI\n", error); 2260 "(%d), continuing with MSI\n", rc);
1933 pci_disable_msix(phba->pcidev); 2261 goto irq_fail_out;
1934 } 2262 }
1935 return error; 2263
2264 /*
2265 * Configure HBA MSI-X attention conditions to messages
2266 */
2267 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2268
2269 if (!pmb) {
2270 rc = -ENOMEM;
2271 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2272 "0474 Unable to allocate memory for issuing "
2273 "MBOX_CONFIG_MSI command\n");
2274 goto mem_fail_out;
2275 }
2276 rc = lpfc_config_msi(phba, pmb);
2277 if (rc)
2278 goto mbx_fail_out;
2279 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
2280 if (rc != MBX_SUCCESS) {
2281 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2282 "0351 Config MSI mailbox command failed, "
2283 "mbxCmd x%x, mbxStatus x%x\n",
2284 pmb->mb.mbxCommand, pmb->mb.mbxStatus);
2285 goto mbx_fail_out;
2286 }
2287
2288 /* Free memory allocated for mailbox command */
2289 mempool_free(pmb, phba->mbox_mem_pool);
2290 return rc;
2291
2292mbx_fail_out:
2293 /* Free memory allocated for mailbox command */
2294 mempool_free(pmb, phba->mbox_mem_pool);
2295
2296mem_fail_out:
2297 /* free the irq already requested */
2298 free_irq(phba->msix_entries[1].vector, phba);
2299
2300irq_fail_out:
2301 /* free the irq already requested */
2302 free_irq(phba->msix_entries[0].vector, phba);
2303
2304msi_fail_out:
2305 /* Unconfigure MSI-X capability structure */
2306 pci_disable_msix(phba->pcidev);
2307 return rc;
1936} 2308}
1937 2309
2310/**
2311 * lpfc_disable_msix: Disable MSI-X interrupt mode.
2312 * @phba: pointer to lpfc hba data structure.
2313 *
2314 * This routine is invoked to release the MSI-X vectors and then disable the
2315 * MSI-X interrupt mode.
2316 **/
1938static void 2317static void
1939lpfc_disable_msix(struct lpfc_hba *phba) 2318lpfc_disable_msix(struct lpfc_hba *phba)
1940{ 2319{
1941 free_irq(phba->msix_entries[0].vector, phba); 2320 int i;
2321
2322 /* Free up MSI-X multi-message vectors */
2323 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
2324 free_irq(phba->msix_entries[i].vector, phba);
2325 /* Disable MSI-X */
1942 pci_disable_msix(phba->pcidev); 2326 pci_disable_msix(phba->pcidev);
1943} 2327}
1944 2328
2329/**
2330 * lpfc_pci_probe_one: lpfc PCI probe func to register device to PCI subsystem.
2331 * @pdev: pointer to PCI device
2332 * @pid: pointer to PCI device identifier
2333 *
2334 * This routine is to be registered to the kernel's PCI subsystem. When an
2335 * Emulex HBA is presented in PCI bus, the kernel PCI subsystem looks at
2336 * PCI device-specific information of the device and driver to see if the
2337 * driver state that it can support this kind of device. If the match is
2338 * successful, the driver core invokes this routine. If this routine
2339 * determines it can claim the HBA, it does all the initialization that it
2340 * needs to do to handle the HBA properly.
2341 *
2342 * Return code
2343 * 0 - driver can claim the device
2344 * negative value - driver can not claim the device
2345 **/
1945static int __devinit 2346static int __devinit
1946lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 2347lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
1947{ 2348{
@@ -1956,6 +2357,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
1956 int i, hbq_count; 2357 int i, hbq_count;
1957 uint16_t iotag; 2358 uint16_t iotag;
1958 int bars = pci_select_bars(pdev, IORESOURCE_MEM); 2359 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
2360 struct lpfc_adapter_event_header adapter_event;
1959 2361
1960 if (pci_enable_device_mem(pdev)) 2362 if (pci_enable_device_mem(pdev))
1961 goto out; 2363 goto out;
@@ -1966,6 +2368,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
1966 if (!phba) 2368 if (!phba)
1967 goto out_release_regions; 2369 goto out_release_regions;
1968 2370
2371 atomic_set(&phba->fast_event_count, 0);
1969 spin_lock_init(&phba->hbalock); 2372 spin_lock_init(&phba->hbalock);
1970 2373
1971 /* Initialize ndlp management spinlock */ 2374 /* Initialize ndlp management spinlock */
@@ -1978,6 +2381,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
1978 goto out_free_phba; 2381 goto out_free_phba;
1979 2382
1980 INIT_LIST_HEAD(&phba->port_list); 2383 INIT_LIST_HEAD(&phba->port_list);
2384 init_waitqueue_head(&phba->wait_4_mlo_m_q);
1981 /* 2385 /*
1982 * Get all the module params for configuring this host and then 2386 * Get all the module params for configuring this host and then
1983 * establish the host. 2387 * establish the host.
@@ -2000,6 +2404,9 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
2000 init_timer(&phba->fabric_block_timer); 2404 init_timer(&phba->fabric_block_timer);
2001 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 2405 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
2002 phba->fabric_block_timer.data = (unsigned long) phba; 2406 phba->fabric_block_timer.data = (unsigned long) phba;
2407 init_timer(&phba->eratt_poll);
2408 phba->eratt_poll.function = lpfc_poll_eratt;
2409 phba->eratt_poll.data = (unsigned long) phba;
2003 2410
2004 pci_set_master(pdev); 2411 pci_set_master(pdev);
2005 pci_try_set_mwi(pdev); 2412 pci_try_set_mwi(pdev);
@@ -2019,7 +2426,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
2019 bar2map_len = pci_resource_len(phba->pcidev, 2); 2426 bar2map_len = pci_resource_len(phba->pcidev, 2);
2020 2427
2021 /* Map HBA SLIM to a kernel virtual address. */ 2428 /* Map HBA SLIM to a kernel virtual address. */
2022 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 2429 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
2023 if (!phba->slim_memmap_p) { 2430 if (!phba->slim_memmap_p) {
2024 error = -ENODEV; 2431 error = -ENODEV;
2025 dev_printk(KERN_ERR, &pdev->dev, 2432 dev_printk(KERN_ERR, &pdev->dev,
@@ -2037,12 +2444,18 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
2037 } 2444 }
2038 2445
2039 /* Allocate memory for SLI-2 structures */ 2446 /* Allocate memory for SLI-2 structures */
2040 phba->slim2p = dma_alloc_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE, 2447 phba->slim2p.virt = dma_alloc_coherent(&phba->pcidev->dev,
2041 &phba->slim2p_mapping, GFP_KERNEL); 2448 SLI2_SLIM_SIZE,
2042 if (!phba->slim2p) 2449 &phba->slim2p.phys,
2450 GFP_KERNEL);
2451 if (!phba->slim2p.virt)
2043 goto out_iounmap; 2452 goto out_iounmap;
2044 2453
2045 memset(phba->slim2p, 0, SLI2_SLIM_SIZE); 2454 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
2455 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
2456 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
2457 phba->IOCBs = (phba->slim2p.virt +
2458 offsetof(struct lpfc_sli2_slim, IOCBs));
2046 2459
2047 phba->hbqslimp.virt = dma_alloc_coherent(&phba->pcidev->dev, 2460 phba->hbqslimp.virt = dma_alloc_coherent(&phba->pcidev->dev,
2048 lpfc_sli_hbq_size(), 2461 lpfc_sli_hbq_size(),
@@ -2111,7 +2524,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
2111 phba->fc_arbtov = FF_DEF_ARBTOV; 2524 phba->fc_arbtov = FF_DEF_ARBTOV;
2112 2525
2113 INIT_LIST_HEAD(&phba->work_list); 2526 INIT_LIST_HEAD(&phba->work_list);
2114 phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT); 2527 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
2115 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 2528 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
2116 2529
2117 /* Initialize the wait queue head for the kernel thread */ 2530 /* Initialize the wait queue head for the kernel thread */
@@ -2146,21 +2559,42 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
2146 pci_set_drvdata(pdev, shost); 2559 pci_set_drvdata(pdev, shost);
2147 phba->intr_type = NONE; 2560 phba->intr_type = NONE;
2148 2561
2562 phba->MBslimaddr = phba->slim_memmap_p;
2563 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
2564 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
2565 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
2566 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
2567
2568 /* Configure and enable interrupt */
2149 if (phba->cfg_use_msi == 2) { 2569 if (phba->cfg_use_msi == 2) {
2150 error = lpfc_enable_msix(phba); 2570 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
2151 if (!error) 2571 error = lpfc_sli_config_port(phba, 3);
2152 phba->intr_type = MSIX; 2572 if (error)
2573 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2574 "0427 Firmware not capable of SLI 3 mode.\n");
2575 else {
2576 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2577 "0426 Firmware capable of SLI 3 mode.\n");
2578 /* Now, try to enable MSI-X interrupt mode */
2579 error = lpfc_enable_msix(phba);
2580 if (!error) {
2581 phba->intr_type = MSIX;
2582 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2583 "0430 enable MSI-X mode.\n");
2584 }
2585 }
2153 } 2586 }
2154 2587
2155 /* Fallback to MSI if MSI-X initialization failed */ 2588 /* Fallback to MSI if MSI-X initialization failed */
2156 if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) { 2589 if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
2157 retval = pci_enable_msi(phba->pcidev); 2590 retval = pci_enable_msi(phba->pcidev);
2158 if (!retval) 2591 if (!retval) {
2159 phba->intr_type = MSI; 2592 phba->intr_type = MSI;
2160 else
2161 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2593 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2162 "0452 Enable MSI failed, continuing " 2594 "0473 enable MSI mode.\n");
2163 "with IRQ\n"); 2595 } else
2596 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2597 "0452 enable IRQ mode.\n");
2164 } 2598 }
2165 2599
2166 /* MSI-X is the only case the doesn't need to call request_irq */ 2600 /* MSI-X is the only case the doesn't need to call request_irq */
@@ -2176,18 +2610,16 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
2176 phba->intr_type = INTx; 2610 phba->intr_type = INTx;
2177 } 2611 }
2178 2612
2179 phba->MBslimaddr = phba->slim_memmap_p;
2180 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
2181 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
2182 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
2183 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
2184
2185 if (lpfc_alloc_sysfs_attr(vport)) { 2613 if (lpfc_alloc_sysfs_attr(vport)) {
2614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2615 "1476 Failed to allocate sysfs attr\n");
2186 error = -ENOMEM; 2616 error = -ENOMEM;
2187 goto out_free_irq; 2617 goto out_free_irq;
2188 } 2618 }
2189 2619
2190 if (lpfc_sli_hba_setup(phba)) { 2620 if (lpfc_sli_hba_setup(phba)) {
2621 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2622 "1477 Failed to set up hba\n");
2191 error = -ENODEV; 2623 error = -ENODEV;
2192 goto out_remove_device; 2624 goto out_remove_device;
2193 } 2625 }
@@ -2206,6 +2638,16 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
2206 spin_unlock_irq(shost->host_lock); 2638 spin_unlock_irq(shost->host_lock);
2207 } 2639 }
2208 2640
2641 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2642 "0428 Perform SCSI scan\n");
2643 /* Send board arrival event to upper layer */
2644 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
2645 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
2646 fc_host_post_vendor_event(shost, fc_get_event_number(),
2647 sizeof(adapter_event),
2648 (char *) &adapter_event,
2649 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2650
2209 scsi_scan_host(shost); 2651 scsi_scan_host(shost);
2210 2652
2211 return 0; 2653 return 0;
@@ -2238,11 +2680,11 @@ out_free_iocbq:
2238 } 2680 }
2239 lpfc_mem_free(phba); 2681 lpfc_mem_free(phba);
2240out_free_hbqslimp: 2682out_free_hbqslimp:
2241 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), phba->hbqslimp.virt, 2683 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
2242 phba->hbqslimp.phys); 2684 phba->hbqslimp.virt, phba->hbqslimp.phys);
2243out_free_slim: 2685out_free_slim:
2244 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p, 2686 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
2245 phba->slim2p_mapping); 2687 phba->slim2p.virt, phba->slim2p.phys);
2246out_iounmap: 2688out_iounmap:
2247 iounmap(phba->ctrl_regs_memmap_p); 2689 iounmap(phba->ctrl_regs_memmap_p);
2248out_iounmap_slim: 2690out_iounmap_slim:
@@ -2262,6 +2704,14 @@ out:
2262 return error; 2704 return error;
2263} 2705}
2264 2706
2707/**
2708 * lpfc_pci_remove_one: lpfc PCI func to unregister device from PCI subsystem.
2709 * @pdev: pointer to PCI device
2710 *
2711 * This routine is to be registered to the kernel's PCI subsystem. When an
2712 * Emulex HBA is removed from PCI bus. It perform all the necessary cleanup
2713 * for the HBA device to be removed from the PCI subsystem properly.
2714 **/
2265static void __devexit 2715static void __devexit
2266lpfc_pci_remove_one(struct pci_dev *pdev) 2716lpfc_pci_remove_one(struct pci_dev *pdev)
2267{ 2717{
@@ -2316,12 +2766,12 @@ lpfc_pci_remove_one(struct pci_dev *pdev)
2316 lpfc_scsi_free(phba); 2766 lpfc_scsi_free(phba);
2317 lpfc_mem_free(phba); 2767 lpfc_mem_free(phba);
2318 2768
2319 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), phba->hbqslimp.virt, 2769 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
2320 phba->hbqslimp.phys); 2770 phba->hbqslimp.virt, phba->hbqslimp.phys);
2321 2771
2322 /* Free resources associated with SLI2 interface */ 2772 /* Free resources associated with SLI2 interface */
2323 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, 2773 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
2324 phba->slim2p, phba->slim2p_mapping); 2774 phba->slim2p.virt, phba->slim2p.phys);
2325 2775
2326 /* unmap adapter SLIM and Control Registers */ 2776 /* unmap adapter SLIM and Control Registers */
2327 iounmap(phba->ctrl_regs_memmap_p); 2777 iounmap(phba->ctrl_regs_memmap_p);
@@ -2336,13 +2786,21 @@ lpfc_pci_remove_one(struct pci_dev *pdev)
2336} 2786}
2337 2787
2338/** 2788/**
2339 * lpfc_io_error_detected - called when PCI error is detected 2789 * lpfc_io_error_detected: Driver method for handling PCI I/O error detected.
2340 * @pdev: Pointer to PCI device 2790 * @pdev: pointer to PCI device.
2341 * @state: The current pci conneection state 2791 * @state: the current PCI connection state.
2342 * 2792 *
2343 * This function is called after a PCI bus error affecting 2793 * This routine is registered to the PCI subsystem for error handling. This
2344 * this device has been detected. 2794 * function is called by the PCI subsystem after a PCI bus error affecting
2345 */ 2795 * this device has been detected. When this function is invoked, it will
2796 * need to stop all the I/Os and interrupt(s) to the device. Once that is
2797 * done, it will return PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to
2798 * perform proper recovery as desired.
2799 *
2800 * Return codes
2801 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
2802 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
2803 **/
2346static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev, 2804static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
2347 pci_channel_state_t state) 2805 pci_channel_state_t state)
2348{ 2806{
@@ -2351,8 +2809,15 @@ static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
2351 struct lpfc_sli *psli = &phba->sli; 2809 struct lpfc_sli *psli = &phba->sli;
2352 struct lpfc_sli_ring *pring; 2810 struct lpfc_sli_ring *pring;
2353 2811
2354 if (state == pci_channel_io_perm_failure) 2812 if (state == pci_channel_io_perm_failure) {
2813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2814 "0472 PCI channel I/O permanent failure\n");
2815 /* Block all SCSI devices' I/Os on the host */
2816 lpfc_scsi_dev_block(phba);
2817 /* Clean up all driver's outstanding SCSI I/Os */
2818 lpfc_sli_flush_fcp_rings(phba);
2355 return PCI_ERS_RESULT_DISCONNECT; 2819 return PCI_ERS_RESULT_DISCONNECT;
2820 }
2356 2821
2357 pci_disable_device(pdev); 2822 pci_disable_device(pdev);
2358 /* 2823 /*
@@ -2376,10 +2841,21 @@ static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
2376} 2841}
2377 2842
2378/** 2843/**
2379 * lpfc_io_slot_reset - called after the pci bus has been reset. 2844 * lpfc_io_slot_reset: Restart a PCI device from scratch.
2380 * @pdev: Pointer to PCI device 2845 * @pdev: pointer to PCI device.
2846 *
2847 * This routine is registered to the PCI subsystem for error handling. This is
2848 * called after PCI bus has been reset to restart the PCI card from scratch,
2849 * as if from a cold-boot. During the PCI subsystem error recovery, after the
2850 * driver returns PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform
2851 * proper error recovery and then call this routine before calling the .resume
2852 * method to recover the device. This function will initialize the HBA device,
2853 * enable the interrupt, but it will just put the HBA to offline state without
2854 * passing any I/O traffic.
2381 * 2855 *
2382 * Restart the card from scratch, as if from a cold-boot. 2856 * Return codes
2857 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
2858 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
2383 */ 2859 */
2384static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev) 2860static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
2385{ 2861{
@@ -2404,20 +2880,34 @@ static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
2404 /* Enable configured interrupt method */ 2880 /* Enable configured interrupt method */
2405 phba->intr_type = NONE; 2881 phba->intr_type = NONE;
2406 if (phba->cfg_use_msi == 2) { 2882 if (phba->cfg_use_msi == 2) {
2407 error = lpfc_enable_msix(phba); 2883 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
2408 if (!error) 2884 error = lpfc_sli_config_port(phba, 3);
2409 phba->intr_type = MSIX; 2885 if (error)
2886 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2887 "0478 Firmware not capable of SLI 3 mode.\n");
2888 else {
2889 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2890 "0479 Firmware capable of SLI 3 mode.\n");
2891 /* Now, try to enable MSI-X interrupt mode */
2892 error = lpfc_enable_msix(phba);
2893 if (!error) {
2894 phba->intr_type = MSIX;
2895 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2896 "0480 enable MSI-X mode.\n");
2897 }
2898 }
2410 } 2899 }
2411 2900
2412 /* Fallback to MSI if MSI-X initialization failed */ 2901 /* Fallback to MSI if MSI-X initialization failed */
2413 if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) { 2902 if (phba->cfg_use_msi >= 1 && phba->intr_type == NONE) {
2414 retval = pci_enable_msi(phba->pcidev); 2903 retval = pci_enable_msi(phba->pcidev);
2415 if (!retval) 2904 if (!retval) {
2416 phba->intr_type = MSI; 2905 phba->intr_type = MSI;
2417 else
2418 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 2906 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2419 "0470 Enable MSI failed, continuing " 2907 "0481 enable MSI mode.\n");
2420 "with IRQ\n"); 2908 } else
2909 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2910 "0470 enable IRQ mode.\n");
2421 } 2911 }
2422 2912
2423 /* MSI-X is the only case the doesn't need to call request_irq */ 2913 /* MSI-X is the only case the doesn't need to call request_irq */
@@ -2440,11 +2930,13 @@ static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
2440} 2930}
2441 2931
2442/** 2932/**
2443 * lpfc_io_resume - called when traffic can start flowing again. 2933 * lpfc_io_resume: Resume PCI I/O operation.
2444 * @pdev: Pointer to PCI device 2934 * @pdev: pointer to PCI device
2445 * 2935 *
2446 * This callback is called when the error recovery driver tells us that 2936 * This routine is registered to the PCI subsystem for error handling. It is
2447 * its OK to resume normal operation. 2937 * called when kernel error recovery tells the lpfc driver that it is ok to
2938 * resume normal PCI operation after PCI bus error recovery. After this call,
2939 * traffic can start to flow from this device again.
2448 */ 2940 */
2449static void lpfc_io_resume(struct pci_dev *pdev) 2941static void lpfc_io_resume(struct pci_dev *pdev)
2450{ 2942{
@@ -2491,6 +2983,8 @@ static struct pci_device_id lpfc_id_table[] = {
2491 PCI_ANY_ID, PCI_ANY_ID, }, 2983 PCI_ANY_ID, PCI_ANY_ID, },
2492 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR, 2984 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
2493 PCI_ANY_ID, PCI_ANY_ID, }, 2985 PCI_ANY_ID, PCI_ANY_ID, },
2986 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
2987 PCI_ANY_ID, PCI_ANY_ID, },
2494 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP, 2988 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
2495 PCI_ANY_ID, PCI_ANY_ID, }, 2989 PCI_ANY_ID, PCI_ANY_ID, },
2496 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP, 2990 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
@@ -2521,6 +3015,12 @@ static struct pci_device_id lpfc_id_table[] = {
2521 PCI_ANY_ID, PCI_ANY_ID, }, 3015 PCI_ANY_ID, PCI_ANY_ID, },
2522 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S, 3016 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
2523 PCI_ANY_ID, PCI_ANY_ID, }, 3017 PCI_ANY_ID, PCI_ANY_ID, },
3018 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
3019 PCI_ANY_ID, PCI_ANY_ID, },
3020 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
3021 PCI_ANY_ID, PCI_ANY_ID, },
3022 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
3023 PCI_ANY_ID, PCI_ANY_ID, },
2524 { 0 } 3024 { 0 }
2525}; 3025};
2526 3026
@@ -2540,6 +3040,18 @@ static struct pci_driver lpfc_driver = {
2540 .err_handler = &lpfc_err_handler, 3040 .err_handler = &lpfc_err_handler,
2541}; 3041};
2542 3042
3043/**
3044 * lpfc_init: lpfc module initialization routine.
3045 *
3046 * This routine is to be invoked when the lpfc module is loaded into the
3047 * kernel. The special kernel macro module_init() is used to indicate the
3048 * role of this routine to the kernel as lpfc module entry point.
3049 *
3050 * Return codes
3051 * 0 - successful
3052 * -ENOMEM - FC attach transport failed
3053 * all others - failed
3054 */
2543static int __init 3055static int __init
2544lpfc_init(void) 3056lpfc_init(void)
2545{ 3057{
@@ -2567,12 +3079,20 @@ lpfc_init(void)
2567 error = pci_register_driver(&lpfc_driver); 3079 error = pci_register_driver(&lpfc_driver);
2568 if (error) { 3080 if (error) {
2569 fc_release_transport(lpfc_transport_template); 3081 fc_release_transport(lpfc_transport_template);
2570 fc_release_transport(lpfc_vport_transport_template); 3082 if (lpfc_enable_npiv)
3083 fc_release_transport(lpfc_vport_transport_template);
2571 } 3084 }
2572 3085
2573 return error; 3086 return error;
2574} 3087}
2575 3088
3089/**
3090 * lpfc_exit: lpfc module removal routine.
3091 *
3092 * This routine is invoked when the lpfc module is removed from the kernel.
3093 * The special kernel macro module_exit() is used to indicate the role of
3094 * this routine to the kernel as lpfc module exit point.
3095 */
2576static void __exit 3096static void __exit
2577lpfc_exit(void) 3097lpfc_exit(void)
2578{ 3098{
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index 7a9be4c5b7cb..7465fe746fe9 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -1,7 +1,7 @@
1/******************************************************************* 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for * 2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. * 3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2007 Emulex. All rights reserved. * 4 * Copyright (C) 2004-2008 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. * 5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com * 6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -30,6 +30,7 @@
30 30
31#include "lpfc_hw.h" 31#include "lpfc_hw.h"
32#include "lpfc_sli.h" 32#include "lpfc_sli.h"
33#include "lpfc_nl.h"
33#include "lpfc_disc.h" 34#include "lpfc_disc.h"
34#include "lpfc_scsi.h" 35#include "lpfc_scsi.h"
35#include "lpfc.h" 36#include "lpfc.h"
@@ -37,10 +38,20 @@
37#include "lpfc_crtn.h" 38#include "lpfc_crtn.h"
38#include "lpfc_compat.h" 39#include "lpfc_compat.h"
39 40
40/**********************************************/ 41/**
41 42 * lpfc_dump_mem: Prepare a mailbox command for retrieving HBA's VPD memory.
42/* mailbox command */ 43 * @phba: pointer to lpfc hba data structure.
43/**********************************************/ 44 * @pmb: pointer to the driver internal queue element for mailbox command.
45 * @offset: offset for dumping VPD memory mailbox command.
46 *
47 * The dump mailbox command provides a method for the device driver to obtain
48 * various types of information from the HBA device.
49 *
50 * This routine prepares the mailbox command for dumping HBA Vital Product
51 * Data (VPD) memory. This mailbox command is to be used for retrieving a
52 * portion (DMP_RSP_SIZE bytes) of a HBA's VPD from the HBA at an address
53 * offset specified by the offset parameter.
54 **/
44void 55void
45lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset) 56lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset)
46{ 57{
@@ -65,10 +76,17 @@ lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset)
65 return; 76 return;
66} 77}
67 78
68/**********************************************/ 79/**
69/* lpfc_read_nv Issue a READ NVPARAM */ 80 * lpfc_read_nv: Prepare a mailbox command for reading HBA's NVRAM param.
70/* mailbox command */ 81 * @phba: pointer to lpfc hba data structure.
71/**********************************************/ 82 * @pmb: pointer to the driver internal queue element for mailbox command.
83 *
84 * The read NVRAM mailbox command returns the HBA's non-volatile parameters
85 * that are used as defaults when the Fibre Channel link is brought on-line.
86 *
87 * This routine prepares the mailbox command for reading information stored
88 * in the HBA's NVRAM. Specifically, the HBA's WWNN and WWPN.
89 **/
72void 90void
73lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 91lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
74{ 92{
@@ -81,10 +99,19 @@ lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
81 return; 99 return;
82} 100}
83 101
84/**********************************************/ 102/**
85/* lpfc_config_async Issue a */ 103 * lpfc_config_async: Prepare a mailbox command for enabling HBA async event.
86/* MBX_ASYNC_EVT_ENABLE mailbox command */ 104 * @phba: pointer to lpfc hba data structure.
87/**********************************************/ 105 * @pmb: pointer to the driver internal queue element for mailbox command.
106 * @ring: ring number for the asynchronous event to be configured.
107 *
108 * The asynchronous event enable mailbox command is used to enable the
109 * asynchronous event posting via the ASYNC_STATUS_CN IOCB response and
110 * specifies the default ring to which events are posted.
111 *
112 * This routine prepares the mailbox command for enabling HBA asynchronous
113 * event support on a IOCB ring.
114 **/
88void 115void
89lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, 116lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb,
90 uint32_t ring) 117 uint32_t ring)
@@ -99,10 +126,19 @@ lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb,
99 return; 126 return;
100} 127}
101 128
102/**********************************************/ 129/**
103/* lpfc_heart_beat Issue a HEART_BEAT */ 130 * lpfc_heart_beat: Prepare a mailbox command for heart beat.
104/* mailbox command */ 131 * @phba: pointer to lpfc hba data structure.
105/**********************************************/ 132 * @pmb: pointer to the driver internal queue element for mailbox command.
133 *
134 * The heart beat mailbox command is used to detect an unresponsive HBA, which
135 * is defined as any device where no error attention is sent and both mailbox
136 * and rings are not processed.
137 *
138 * This routine prepares the mailbox command for issuing a heart beat in the
139 * form of mailbox command to the HBA. The timely completion of the heart
140 * beat mailbox command indicates the health of the HBA.
141 **/
106void 142void
107lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 143lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
108{ 144{
@@ -115,10 +151,26 @@ lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
115 return; 151 return;
116} 152}
117 153
118/**********************************************/ 154/**
119/* lpfc_read_la Issue a READ LA */ 155 * lpfc_read_la: Prepare a mailbox command for reading HBA link attention.
120/* mailbox command */ 156 * @phba: pointer to lpfc hba data structure.
121/**********************************************/ 157 * @pmb: pointer to the driver internal queue element for mailbox command.
158 * @mp: DMA buffer memory for reading the link attention information into.
159 *
160 * The read link attention mailbox command is issued to read the Link Event
161 * Attention information indicated by the HBA port when the Link Event bit
162 * of the Host Attention (HSTATT) register is set to 1. A Link Event
163 * Attention occurs based on an exception detected at the Fibre Channel link
164 * interface.
165 *
166 * This routine prepares the mailbox command for reading HBA link attention
167 * information. A DMA memory has been set aside and address passed to the
168 * HBA through @mp for the HBA to DMA link attention information into the
169 * memory as part of the execution of the mailbox command.
170 *
171 * Return codes
172 * 0 - Success (currently always return 0)
173 **/
122int 174int
123lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, struct lpfc_dmabuf *mp) 175lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, struct lpfc_dmabuf *mp)
124{ 176{
@@ -143,10 +195,21 @@ lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, struct lpfc_dmabuf *mp)
143 return (0); 195 return (0);
144} 196}
145 197
146/**********************************************/ 198/**
147/* lpfc_clear_la Issue a CLEAR LA */ 199 * lpfc_clear_la: Prepare a mailbox command for clearing HBA link attention.
148/* mailbox command */ 200 * @phba: pointer to lpfc hba data structure.
149/**********************************************/ 201 * @pmb: pointer to the driver internal queue element for mailbox command.
202 *
203 * The clear link attention mailbox command is issued to clear the link event
204 * attention condition indicated by the Link Event bit of the Host Attention
205 * (HSTATT) register. The link event attention condition is cleared only if
206 * the event tag specified matches that of the current link event counter.
207 * The current event tag is read using the read link attention event mailbox
208 * command.
209 *
210 * This routine prepares the mailbox command for clearing HBA link attention
211 * information.
212 **/
150void 213void
151lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 214lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
152{ 215{
@@ -161,10 +224,20 @@ lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
161 return; 224 return;
162} 225}
163 226
164/**************************************************/ 227/**
165/* lpfc_config_link Issue a CONFIG LINK */ 228 * lpfc_config_link: Prepare a mailbox command for configuring link on a HBA.
166/* mailbox command */ 229 * @phba: pointer to lpfc hba data structure.
167/**************************************************/ 230 * @pmb: pointer to the driver internal queue element for mailbox command.
231 *
232 * The configure link mailbox command is used before the initialize link
233 * mailbox command to override default value and to configure link-oriented
234 * parameters such as DID address and various timers. Typically, this
235 * command would be used after an F_Port login to set the returned DID address
236 * and the fabric timeout values. This command is not valid before a configure
237 * port command has configured the HBA port.
238 *
239 * This routine prepares the mailbox command for configuring link on a HBA.
240 **/
168void 241void
169lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 242lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
170{ 243{
@@ -199,10 +272,98 @@ lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
199 return; 272 return;
200} 273}
201 274
202/**********************************************/ 275/**
203/* lpfc_init_link Issue an INIT LINK */ 276 * lpfc_config_msi: Prepare a mailbox command for configuring msi-x.
204/* mailbox command */ 277 * @phba: pointer to lpfc hba data structure.
205/**********************************************/ 278 * @pmb: pointer to the driver internal queue element for mailbox command.
279 *
280 * The configure MSI-X mailbox command is used to configure the HBA's SLI-3
281 * MSI-X multi-message interrupt vector association to interrupt attention
282 * conditions.
283 *
284 * Return codes
285 * 0 - Success
286 * -EINVAL - Failure
287 **/
288int
289lpfc_config_msi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
290{
291 MAILBOX_t *mb = &pmb->mb;
292 uint32_t attentionConditions[2];
293
294 /* Sanity check */
295 if (phba->cfg_use_msi != 2) {
296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
297 "0475 Not configured for supporting MSI-X "
298 "cfg_use_msi: 0x%x\n", phba->cfg_use_msi);
299 return -EINVAL;
300 }
301
302 if (phba->sli_rev < 3) {
303 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
304 "0476 HBA not supporting SLI-3 or later "
305 "SLI Revision: 0x%x\n", phba->sli_rev);
306 return -EINVAL;
307 }
308
309 /* Clear mailbox command fields */
310 memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
311
312 /*
313 * SLI-3, Message Signaled Interrupt Fearure.
314 */
315
316 /* Multi-message attention configuration */
317 attentionConditions[0] = (HA_R0ATT | HA_R1ATT | HA_R2ATT | HA_ERATT |
318 HA_LATT | HA_MBATT);
319 attentionConditions[1] = 0;
320
321 mb->un.varCfgMSI.attentionConditions[0] = attentionConditions[0];
322 mb->un.varCfgMSI.attentionConditions[1] = attentionConditions[1];
323
324 /*
325 * Set up message number to HA bit association
326 */
327#ifdef __BIG_ENDIAN_BITFIELD
328 /* RA0 (FCP Ring) */
329 mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS] = 1;
330 /* RA1 (Other Protocol Extra Ring) */
331 mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS] = 1;
332#else /* __LITTLE_ENDIAN_BITFIELD */
333 /* RA0 (FCP Ring) */
334 mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS^3] = 1;
335 /* RA1 (Other Protocol Extra Ring) */
336 mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS^3] = 1;
337#endif
338 /* Multi-message interrupt autoclear configuration*/
339 mb->un.varCfgMSI.autoClearHA[0] = attentionConditions[0];
340 mb->un.varCfgMSI.autoClearHA[1] = attentionConditions[1];
341
342 /* For now, HBA autoclear does not work reliably, disable it */
343 mb->un.varCfgMSI.autoClearHA[0] = 0;
344 mb->un.varCfgMSI.autoClearHA[1] = 0;
345
346 /* Set command and owner bit */
347 mb->mbxCommand = MBX_CONFIG_MSI;
348 mb->mbxOwner = OWN_HOST;
349
350 return 0;
351}
352
353/**
354 * lpfc_init_link: Prepare a mailbox command for initialize link on a HBA.
355 * @phba: pointer to lpfc hba data structure.
356 * @pmb: pointer to the driver internal queue element for mailbox command.
357 * @topology: the link topology for the link to be initialized to.
358 * @linkspeed: the link speed for the link to be initialized to.
359 *
360 * The initialize link mailbox command is used to initialize the Fibre
361 * Channel link. This command must follow a configure port command that
362 * establishes the mode of operation.
363 *
364 * This routine prepares the mailbox command for initializing link on a HBA
365 * with the specified link topology and speed.
366 **/
206void 367void
207lpfc_init_link(struct lpfc_hba * phba, 368lpfc_init_link(struct lpfc_hba * phba,
208 LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed) 369 LPFC_MBOXQ_t * pmb, uint32_t topology, uint32_t linkspeed)
@@ -269,10 +430,27 @@ lpfc_init_link(struct lpfc_hba * phba,
269 return; 430 return;
270} 431}
271 432
272/**********************************************/ 433/**
273/* lpfc_read_sparam Issue a READ SPARAM */ 434 * lpfc_read_sparam: Prepare a mailbox command for reading HBA parameters.
274/* mailbox command */ 435 * @phba: pointer to lpfc hba data structure.
275/**********************************************/ 436 * @pmb: pointer to the driver internal queue element for mailbox command.
437 * @vpi: virtual N_Port identifier.
438 *
439 * The read service parameter mailbox command is used to read the HBA port
440 * service parameters. The service parameters are read into the buffer
441 * specified directly by a BDE in the mailbox command. These service
442 * parameters may then be used to build the payload of an N_Port/F_POrt
443 * login request and reply (LOGI/ACC).
444 *
445 * This routine prepares the mailbox command for reading HBA port service
446 * parameters. The DMA memory is allocated in this function and the addresses
447 * are populated into the mailbox command for the HBA to DMA the service
448 * parameters into.
449 *
450 * Return codes
451 * 0 - Success
452 * 1 - DMA memory allocation failed
453 **/
276int 454int
277lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi) 455lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi)
278{ 456{
@@ -312,10 +490,21 @@ lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi)
312 return (0); 490 return (0);
313} 491}
314 492
315/********************************************/ 493/**
316/* lpfc_unreg_did Issue a UNREG_DID */ 494 * lpfc_unreg_did: Prepare a mailbox command for unregistering DID.
317/* mailbox command */ 495 * @phba: pointer to lpfc hba data structure.
318/********************************************/ 496 * @vpi: virtual N_Port identifier.
497 * @did: remote port identifier.
498 * @pmb: pointer to the driver internal queue element for mailbox command.
499 *
500 * The unregister DID mailbox command is used to unregister an N_Port/F_Port
501 * login for an unknown RPI by specifying the DID of a remote port. This
502 * command frees an RPI context in the HBA port. This has the effect of
503 * performing an implicit N_Port/F_Port logout.
504 *
505 * This routine prepares the mailbox command for unregistering a remote
506 * N_Port/F_Port (DID) login.
507 **/
319void 508void
320lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did, 509lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did,
321 LPFC_MBOXQ_t * pmb) 510 LPFC_MBOXQ_t * pmb)
@@ -333,10 +522,19 @@ lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did,
333 return; 522 return;
334} 523}
335 524
336/**********************************************/ 525/**
337/* lpfc_read_nv Issue a READ CONFIG */ 526 * lpfc_read_config: Prepare a mailbox command for reading HBA configuration.
338/* mailbox command */ 527 * @phba: pointer to lpfc hba data structure.
339/**********************************************/ 528 * @pmb: pointer to the driver internal queue element for mailbox command.
529 *
530 * The read configuration mailbox command is used to read the HBA port
531 * configuration parameters. This mailbox command provides a method for
532 * seeing any parameters that may have changed via various configuration
533 * mailbox commands.
534 *
535 * This routine prepares the mailbox command for reading out HBA configuration
536 * parameters.
537 **/
340void 538void
341lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 539lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
342{ 540{
@@ -350,10 +548,18 @@ lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
350 return; 548 return;
351} 549}
352 550
353/*************************************************/ 551/**
354/* lpfc_read_lnk_stat Issue a READ LINK STATUS */ 552 * lpfc_read_lnk_stat: Prepare a mailbox command for reading HBA link stats.
355/* mailbox command */ 553 * @phba: pointer to lpfc hba data structure.
356/*************************************************/ 554 * @pmb: pointer to the driver internal queue element for mailbox command.
555 *
556 * The read link status mailbox command is used to read the link status from
557 * the HBA. Link status includes all link-related error counters. These
558 * counters are maintained by the HBA and originated in the link hardware
559 * unit. Note that all of these counters wrap.
560 *
561 * This routine prepares the mailbox command for reading out HBA link status.
562 **/
357void 563void
358lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 564lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
359{ 565{
@@ -367,10 +573,30 @@ lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
367 return; 573 return;
368} 574}
369 575
370/********************************************/ 576/**
371/* lpfc_reg_login Issue a REG_LOGIN */ 577 * lpfc_reg_login: Prepare a mailbox command for registering remote login.
372/* mailbox command */ 578 * @phba: pointer to lpfc hba data structure.
373/********************************************/ 579 * @vpi: virtual N_Port identifier.
580 * @did: remote port identifier.
581 * @param: pointer to memory holding the server parameters.
582 * @pmb: pointer to the driver internal queue element for mailbox command.
583 * @flag: action flag to be passed back for the complete function.
584 *
585 * The registration login mailbox command is used to register an N_Port or
586 * F_Port login. This registration allows the HBA to cache the remote N_Port
587 * service parameters internally and thereby make the appropriate FC-2
588 * decisions. The remote port service parameters are handed off by the driver
589 * to the HBA using a descriptor entry that directly identifies a buffer in
590 * host memory. In exchange, the HBA returns an RPI identifier.
591 *
592 * This routine prepares the mailbox command for registering remote port login.
593 * The function allocates DMA buffer for passing the service parameters to the
594 * HBA with the mailbox command.
595 *
596 * Return codes
597 * 0 - Success
598 * 1 - DMA memory allocation failed
599 **/
374int 600int
375lpfc_reg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t did, 601lpfc_reg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t did,
376 uint8_t *param, LPFC_MBOXQ_t *pmb, uint32_t flag) 602 uint8_t *param, LPFC_MBOXQ_t *pmb, uint32_t flag)
@@ -418,10 +644,20 @@ lpfc_reg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t did,
418 return (0); 644 return (0);
419} 645}
420 646
421/**********************************************/ 647/**
422/* lpfc_unreg_login Issue a UNREG_LOGIN */ 648 * lpfc_unreg_login: Prepare a mailbox command for unregistering remote login.
423/* mailbox command */ 649 * @phba: pointer to lpfc hba data structure.
424/**********************************************/ 650 * @vpi: virtual N_Port identifier.
651 * @rpi: remote port identifier
652 * @pmb: pointer to the driver internal queue element for mailbox command.
653 *
654 * The unregistration login mailbox command is used to unregister an N_Port
655 * or F_Port login. This command frees an RPI context in the HBA. It has the
656 * effect of performing an implicit N_Port/F_Port logout.
657 *
658 * This routine prepares the mailbox command for unregistering remote port
659 * login.
660 **/
425void 661void
426lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi, 662lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
427 LPFC_MBOXQ_t * pmb) 663 LPFC_MBOXQ_t * pmb)
@@ -440,10 +676,21 @@ lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
440 return; 676 return;
441} 677}
442 678
443/**************************************************/ 679/**
444/* lpfc_reg_vpi Issue a REG_VPI */ 680 * lpfc_reg_vpi: Prepare a mailbox command for registering vport identifier.
445/* mailbox command */ 681 * @phba: pointer to lpfc hba data structure.
446/**************************************************/ 682 * @vpi: virtual N_Port identifier.
683 * @sid: Fibre Channel S_ID (N_Port_ID assigned to a virtual N_Port).
684 * @pmb: pointer to the driver internal queue element for mailbox command.
685 *
686 * The registration vport identifier mailbox command is used to activate a
687 * virtual N_Port after it has acquired an N_Port_ID. The HBA validates the
688 * N_Port_ID against the information in the selected virtual N_Port context
689 * block and marks it active to allow normal processing of IOCB commands and
690 * received unsolicited exchanges.
691 *
692 * This routine prepares the mailbox command for registering a virtual N_Port.
693 **/
447void 694void
448lpfc_reg_vpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t sid, 695lpfc_reg_vpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t sid,
449 LPFC_MBOXQ_t *pmb) 696 LPFC_MBOXQ_t *pmb)
@@ -461,10 +708,22 @@ lpfc_reg_vpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t sid,
461 708
462} 709}
463 710
464/**************************************************/ 711/**
465/* lpfc_unreg_vpi Issue a UNREG_VNPI */ 712 * lpfc_unreg_vpi: Prepare a mailbox command for unregistering vport id.
466/* mailbox command */ 713 * @phba: pointer to lpfc hba data structure.
467/**************************************************/ 714 * @vpi: virtual N_Port identifier.
715 * @pmb: pointer to the driver internal queue element for mailbox command.
716 *
717 * The unregistration vport identifier mailbox command is used to inactivate
718 * a virtual N_Port. The driver must have logged out and unregistered all
719 * remote N_Ports to abort any activity on the virtual N_Port. The HBA will
720 * unregisters any default RPIs associated with the specified vpi, aborting
721 * any active exchanges. The HBA will post the mailbox response after making
722 * the virtual N_Port inactive.
723 *
724 * This routine prepares the mailbox command for unregistering a virtual
725 * N_Port.
726 **/
468void 727void
469lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb) 728lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb)
470{ 729{
@@ -479,12 +738,19 @@ lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb)
479 738
480} 739}
481 740
741/**
742 * lpfc_config_pcb_setup: Set up IOCB rings in the Port Control Block (PCB)
743 * @phba: pointer to lpfc hba data structure.
744 *
745 * This routine sets up and initializes the IOCB rings in the Port Control
746 * Block (PCB).
747 **/
482static void 748static void
483lpfc_config_pcb_setup(struct lpfc_hba * phba) 749lpfc_config_pcb_setup(struct lpfc_hba * phba)
484{ 750{
485 struct lpfc_sli *psli = &phba->sli; 751 struct lpfc_sli *psli = &phba->sli;
486 struct lpfc_sli_ring *pring; 752 struct lpfc_sli_ring *pring;
487 PCB_t *pcbp = &phba->slim2p->pcb; 753 PCB_t *pcbp = phba->pcb;
488 dma_addr_t pdma_addr; 754 dma_addr_t pdma_addr;
489 uint32_t offset; 755 uint32_t offset;
490 uint32_t iocbCnt = 0; 756 uint32_t iocbCnt = 0;
@@ -513,29 +779,43 @@ lpfc_config_pcb_setup(struct lpfc_hba * phba)
513 continue; 779 continue;
514 } 780 }
515 /* Command ring setup for ring */ 781 /* Command ring setup for ring */
516 pring->cmdringaddr = (void *) &phba->slim2p->IOCBs[iocbCnt]; 782 pring->cmdringaddr = (void *)&phba->IOCBs[iocbCnt];
517 pcbp->rdsc[i].cmdEntries = pring->numCiocb; 783 pcbp->rdsc[i].cmdEntries = pring->numCiocb;
518 784
519 offset = (uint8_t *) &phba->slim2p->IOCBs[iocbCnt] - 785 offset = (uint8_t *) &phba->IOCBs[iocbCnt] -
520 (uint8_t *) phba->slim2p; 786 (uint8_t *) phba->slim2p.virt;
521 pdma_addr = phba->slim2p_mapping + offset; 787 pdma_addr = phba->slim2p.phys + offset;
522 pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr); 788 pcbp->rdsc[i].cmdAddrHigh = putPaddrHigh(pdma_addr);
523 pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr); 789 pcbp->rdsc[i].cmdAddrLow = putPaddrLow(pdma_addr);
524 iocbCnt += pring->numCiocb; 790 iocbCnt += pring->numCiocb;
525 791
526 /* Response ring setup for ring */ 792 /* Response ring setup for ring */
527 pring->rspringaddr = (void *) &phba->slim2p->IOCBs[iocbCnt]; 793 pring->rspringaddr = (void *) &phba->IOCBs[iocbCnt];
528 794
529 pcbp->rdsc[i].rspEntries = pring->numRiocb; 795 pcbp->rdsc[i].rspEntries = pring->numRiocb;
530 offset = (uint8_t *)&phba->slim2p->IOCBs[iocbCnt] - 796 offset = (uint8_t *)&phba->IOCBs[iocbCnt] -
531 (uint8_t *)phba->slim2p; 797 (uint8_t *)phba->slim2p.virt;
532 pdma_addr = phba->slim2p_mapping + offset; 798 pdma_addr = phba->slim2p.phys + offset;
533 pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr); 799 pcbp->rdsc[i].rspAddrHigh = putPaddrHigh(pdma_addr);
534 pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr); 800 pcbp->rdsc[i].rspAddrLow = putPaddrLow(pdma_addr);
535 iocbCnt += pring->numRiocb; 801 iocbCnt += pring->numRiocb;
536 } 802 }
537} 803}
538 804
805/**
806 * lpfc_read_rev: Prepare a mailbox command for reading HBA revision.
807 * @phba: pointer to lpfc hba data structure.
808 * @pmb: pointer to the driver internal queue element for mailbox command.
809 *
810 * The read revision mailbox command is used to read the revision levels of
811 * the HBA components. These components include hardware units, resident
812 * firmware, and available firmware. HBAs that supports SLI-3 mode of
813 * operation provide different response information depending on the version
814 * requested by the driver.
815 *
816 * This routine prepares the mailbox command for reading HBA revision
817 * information.
818 **/
539void 819void
540lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 820lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
541{ 821{
@@ -548,6 +828,16 @@ lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
548 return; 828 return;
549} 829}
550 830
831/**
832 * lpfc_build_hbq_profile2: Set up the HBQ Selection Profile 2.
833 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
834 * @hbq_desc: pointer to the HBQ selection profile descriptor.
835 *
836 * The Host Buffer Queue (HBQ) Selection Profile 2 specifies that the HBA
837 * tests the incoming frames' R_CTL/TYPE fields with works 10:15 and performs
838 * the Sequence Length Test using the fields in the Selection Profile 2
839 * extension in words 20:31.
840 **/
551static void 841static void
552lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb, 842lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb,
553 struct lpfc_hbq_init *hbq_desc) 843 struct lpfc_hbq_init *hbq_desc)
@@ -557,6 +847,16 @@ lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb,
557 hbqmb->profiles.profile2.seqlenoff = hbq_desc->seqlenoff; 847 hbqmb->profiles.profile2.seqlenoff = hbq_desc->seqlenoff;
558} 848}
559 849
850/**
851 * lpfc_build_hbq_profile3: Set up the HBQ Selection Profile 3.
852 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
853 * @hbq_desc: pointer to the HBQ selection profile descriptor.
854 *
855 * The Host Buffer Queue (HBQ) Selection Profile 3 specifies that the HBA
856 * tests the incoming frame's R_CTL/TYPE fields with words 10:15 and performs
857 * the Sequence Length Test and Byte Field Test using the fields in the
858 * Selection Profile 3 extension in words 20:31.
859 **/
560static void 860static void
561lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb, 861lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb,
562 struct lpfc_hbq_init *hbq_desc) 862 struct lpfc_hbq_init *hbq_desc)
@@ -569,6 +869,17 @@ lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb,
569 sizeof(hbqmb->profiles.profile3.cmdmatch)); 869 sizeof(hbqmb->profiles.profile3.cmdmatch));
570} 870}
571 871
872/**
873 * lpfc_build_hbq_profile5: Set up the HBQ Selection Profile 5.
874 * @hbqmb: pointer to the HBQ configuration data structure in mailbox command.
875 * @hbq_desc: pointer to the HBQ selection profile descriptor.
876 *
877 * The Host Buffer Queue (HBQ) Selection Profile 5 specifies a header HBQ. The
878 * HBA tests the initial frame of an incoming sequence using the frame's
879 * R_CTL/TYPE fields with words 10:15 and performs the Sequence Length Test
880 * and Byte Field Test using the fields in the Selection Profile 5 extension
881 * words 20:31.
882 **/
572static void 883static void
573lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb, 884lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb,
574 struct lpfc_hbq_init *hbq_desc) 885 struct lpfc_hbq_init *hbq_desc)
@@ -581,6 +892,20 @@ lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb,
581 sizeof(hbqmb->profiles.profile5.cmdmatch)); 892 sizeof(hbqmb->profiles.profile5.cmdmatch));
582} 893}
583 894
895/**
896 * lpfc_config_hbq: Prepare a mailbox command for configuring an HBQ.
897 * @phba: pointer to lpfc hba data structure.
898 * @id: HBQ identifier.
899 * @hbq_desc: pointer to the HBA descriptor data structure.
900 * @hbq_entry_index: index of the HBQ entry data structures.
901 * @pmb: pointer to the driver internal queue element for mailbox command.
902 *
903 * The configure HBQ (Host Buffer Queue) mailbox command is used to configure
904 * an HBQ. The configuration binds events that require buffers to a particular
905 * ring and HBQ based on a selection profile.
906 *
907 * This routine prepares the mailbox command for configuring an HBQ.
908 **/
584void 909void
585lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id, 910lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id,
586 struct lpfc_hbq_init *hbq_desc, 911 struct lpfc_hbq_init *hbq_desc,
@@ -641,8 +966,23 @@ lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id,
641 return; 966 return;
642} 967}
643 968
644 969/**
645 970 * lpfc_config_ring: Prepare a mailbox command for configuring an IOCB ring.
971 * @phba: pointer to lpfc hba data structure.
972 * @ring:
973 * @pmb: pointer to the driver internal queue element for mailbox command.
974 *
975 * The configure ring mailbox command is used to configure an IOCB ring. This
976 * configuration binds from one to six of HBA RC_CTL/TYPE mask entries to the
977 * ring. This is used to map incoming sequences to a particular ring whose
978 * RC_CTL/TYPE mask entry matches that of the sequence. The driver should not
979 * attempt to configure a ring whose number is greater than the number
980 * specified in the Port Control Block (PCB). It is an error to issue the
981 * configure ring command more than once with the same ring number. The HBA
982 * returns an error if the driver attempts this.
983 *
984 * This routine prepares the mailbox command for configuring IOCB ring.
985 **/
646void 986void
647lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb) 987lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
648{ 988{
@@ -684,6 +1024,20 @@ lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
684 return; 1024 return;
685} 1025}
686 1026
1027/**
1028 * lpfc_config_port: Prepare a mailbox command for configuring port.
1029 * @phba: pointer to lpfc hba data structure.
1030 * @pmb: pointer to the driver internal queue element for mailbox command.
1031 *
1032 * The configure port mailbox command is used to identify the Port Control
1033 * Block (PCB) in the driver memory. After this command is issued, the
1034 * driver must not access the mailbox in the HBA without first resetting
1035 * the HBA. The HBA may copy the PCB information to internal storage for
1036 * subsequent use; the driver can not change the PCB information unless it
1037 * resets the HBA.
1038 *
1039 * This routine prepares the mailbox command for configuring port.
1040 **/
687void 1041void
688lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1042lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
689{ 1043{
@@ -702,8 +1056,8 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
702 1056
703 mb->un.varCfgPort.pcbLen = sizeof(PCB_t); 1057 mb->un.varCfgPort.pcbLen = sizeof(PCB_t);
704 1058
705 offset = (uint8_t *)&phba->slim2p->pcb - (uint8_t *)phba->slim2p; 1059 offset = (uint8_t *)phba->pcb - (uint8_t *)phba->slim2p.virt;
706 pdma_addr = phba->slim2p_mapping + offset; 1060 pdma_addr = phba->slim2p.phys + offset;
707 mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr); 1061 mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr);
708 mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr); 1062 mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr);
709 1063
@@ -711,12 +1065,13 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
711 1065
712 if (phba->sli_rev == 3 && phba->vpd.sli3Feat.cerbm) { 1066 if (phba->sli_rev == 3 && phba->vpd.sli3Feat.cerbm) {
713 mb->un.varCfgPort.cerbm = 1; /* Request HBQs */ 1067 mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
1068 mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */
1069 mb->un.varCfgPort.cinb = 1; /* Interrupt Notification Block */
714 mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count(); 1070 mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count();
715 if (phba->max_vpi && phba->cfg_enable_npiv && 1071 if (phba->max_vpi && phba->cfg_enable_npiv &&
716 phba->vpd.sli3Feat.cmv) { 1072 phba->vpd.sli3Feat.cmv) {
717 mb->un.varCfgPort.max_vpi = phba->max_vpi; 1073 mb->un.varCfgPort.max_vpi = phba->max_vpi;
718 mb->un.varCfgPort.cmv = 1; 1074 mb->un.varCfgPort.cmv = 1;
719 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
720 } else 1075 } else
721 mb->un.varCfgPort.max_vpi = phba->max_vpi = 0; 1076 mb->un.varCfgPort.max_vpi = phba->max_vpi = 0;
722 } else 1077 } else
@@ -724,16 +1079,15 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
724 mb->un.varCfgPort.sli_mode = phba->sli_rev; 1079 mb->un.varCfgPort.sli_mode = phba->sli_rev;
725 1080
726 /* Now setup pcb */ 1081 /* Now setup pcb */
727 phba->slim2p->pcb.type = TYPE_NATIVE_SLI2; 1082 phba->pcb->type = TYPE_NATIVE_SLI2;
728 phba->slim2p->pcb.feature = FEATURE_INITIAL_SLI2; 1083 phba->pcb->feature = FEATURE_INITIAL_SLI2;
729 1084
730 /* Setup Mailbox pointers */ 1085 /* Setup Mailbox pointers */
731 phba->slim2p->pcb.mailBoxSize = offsetof(MAILBOX_t, us) + 1086 phba->pcb->mailBoxSize = sizeof(MAILBOX_t);
732 sizeof(struct sli2_desc); 1087 offset = (uint8_t *)phba->mbox - (uint8_t *)phba->slim2p.virt;
733 offset = (uint8_t *)&phba->slim2p->mbx - (uint8_t *)phba->slim2p; 1088 pdma_addr = phba->slim2p.phys + offset;
734 pdma_addr = phba->slim2p_mapping + offset; 1089 phba->pcb->mbAddrHigh = putPaddrHigh(pdma_addr);
735 phba->slim2p->pcb.mbAddrHigh = putPaddrHigh(pdma_addr); 1090 phba->pcb->mbAddrLow = putPaddrLow(pdma_addr);
736 phba->slim2p->pcb.mbAddrLow = putPaddrLow(pdma_addr);
737 1091
738 /* 1092 /*
739 * Setup Host Group ring pointer. 1093 * Setup Host Group ring pointer.
@@ -794,13 +1148,13 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
794 } 1148 }
795 1149
796 /* mask off BAR0's flag bits 0 - 3 */ 1150 /* mask off BAR0's flag bits 0 - 3 */
797 phba->slim2p->pcb.hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) + 1151 phba->pcb->hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) +
798 (void __iomem *) phba->host_gp - 1152 (void __iomem *)phba->host_gp -
799 (void __iomem *)phba->MBslimaddr; 1153 (void __iomem *)phba->MBslimaddr;
800 if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64) 1154 if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64)
801 phba->slim2p->pcb.hgpAddrHigh = bar_high; 1155 phba->pcb->hgpAddrHigh = bar_high;
802 else 1156 else
803 phba->slim2p->pcb.hgpAddrHigh = 0; 1157 phba->pcb->hgpAddrHigh = 0;
804 /* write HGP data to SLIM at the required longword offset */ 1158 /* write HGP data to SLIM at the required longword offset */
805 memset(&hgp, 0, sizeof(struct lpfc_hgp)); 1159 memset(&hgp, 0, sizeof(struct lpfc_hgp));
806 1160
@@ -810,17 +1164,19 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
810 } 1164 }
811 1165
812 /* Setup Port Group ring pointer */ 1166 /* Setup Port Group ring pointer */
813 if (phba->sli_rev == 3) 1167 if (phba->sli3_options & LPFC_SLI3_INB_ENABLED) {
814 pgp_offset = (uint8_t *)&phba->slim2p->mbx.us.s3_pgp.port - 1168 pgp_offset = offsetof(struct lpfc_sli2_slim,
815 (uint8_t *)phba->slim2p; 1169 mbx.us.s3_inb_pgp.port);
816 else 1170 phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get;
817 pgp_offset = (uint8_t *)&phba->slim2p->mbx.us.s2.port - 1171 } else if (phba->sli_rev == 3) {
818 (uint8_t *)phba->slim2p; 1172 pgp_offset = offsetof(struct lpfc_sli2_slim,
819 1173 mbx.us.s3_pgp.port);
820 pdma_addr = phba->slim2p_mapping + pgp_offset; 1174 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
821 phba->slim2p->pcb.pgpAddrHigh = putPaddrHigh(pdma_addr); 1175 } else
822 phba->slim2p->pcb.pgpAddrLow = putPaddrLow(pdma_addr); 1176 pgp_offset = offsetof(struct lpfc_sli2_slim, mbx.us.s2.port);
823 phba->hbq_get = &phba->slim2p->mbx.us.s3_pgp.hbq_get[0]; 1177 pdma_addr = phba->slim2p.phys + pgp_offset;
1178 phba->pcb->pgpAddrHigh = putPaddrHigh(pdma_addr);
1179 phba->pcb->pgpAddrLow = putPaddrLow(pdma_addr);
824 1180
825 /* Use callback routine to setp rings in the pcb */ 1181 /* Use callback routine to setp rings in the pcb */
826 lpfc_config_pcb_setup(phba); 1182 lpfc_config_pcb_setup(phba);
@@ -835,10 +1191,24 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
835 } 1191 }
836 1192
837 /* Swap PCB if needed */ 1193 /* Swap PCB if needed */
838 lpfc_sli_pcimem_bcopy(&phba->slim2p->pcb, &phba->slim2p->pcb, 1194 lpfc_sli_pcimem_bcopy(phba->pcb, phba->pcb, sizeof(PCB_t));
839 sizeof(PCB_t));
840} 1195}
841 1196
1197/**
1198 * lpfc_kill_board: Prepare a mailbox command for killing board.
1199 * @phba: pointer to lpfc hba data structure.
1200 * @pmb: pointer to the driver internal queue element for mailbox command.
1201 *
1202 * The kill board mailbox command is used to tell firmware to perform a
1203 * graceful shutdown of a channel on a specified board to prepare for reset.
1204 * When the kill board mailbox command is received, the ER3 bit is set to 1
1205 * in the Host Status register and the ER Attention bit is set to 1 in the
1206 * Host Attention register of the HBA function that received the kill board
1207 * command.
1208 *
1209 * This routine prepares the mailbox command for killing the board in
1210 * preparation for a graceful shutdown.
1211 **/
842void 1212void
843lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) 1213lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
844{ 1214{
@@ -850,6 +1220,16 @@ lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
850 return; 1220 return;
851} 1221}
852 1222
1223/**
1224 * lpfc_mbox_put: Put a mailbox cmd into the tail of driver's mailbox queue.
1225 * @phba: pointer to lpfc hba data structure.
1226 * @mbq: pointer to the driver internal queue element for mailbox command.
1227 *
1228 * Driver maintains a internal mailbox command queue implemented as a linked
1229 * list. When a mailbox command is issued, it shall be put into the mailbox
1230 * command queue such that they shall be processed orderly as HBA can process
1231 * one mailbox command at a time.
1232 **/
853void 1233void
854lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq) 1234lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
855{ 1235{
@@ -864,6 +1244,20 @@ lpfc_mbox_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
864 return; 1244 return;
865} 1245}
866 1246
1247/**
1248 * lpfc_mbox_get: Remove a mailbox cmd from the head of driver's mailbox queue.
1249 * @phba: pointer to lpfc hba data structure.
1250 *
1251 * Driver maintains a internal mailbox command queue implemented as a linked
1252 * list. When a mailbox command is issued, it shall be put into the mailbox
1253 * command queue such that they shall be processed orderly as HBA can process
1254 * one mailbox command at a time. After HBA finished processing a mailbox
1255 * command, the driver will remove a pending mailbox command from the head of
1256 * the mailbox command queue and send to the HBA for processing.
1257 *
1258 * Return codes
1259 * pointer to the driver internal queue element for mailbox command.
1260 **/
867LPFC_MBOXQ_t * 1261LPFC_MBOXQ_t *
868lpfc_mbox_get(struct lpfc_hba * phba) 1262lpfc_mbox_get(struct lpfc_hba * phba)
869{ 1263{
@@ -877,6 +1271,17 @@ lpfc_mbox_get(struct lpfc_hba * phba)
877 return mbq; 1271 return mbq;
878} 1272}
879 1273
1274/**
1275 * lpfc_mbox_cmpl_put: Put mailbox command into mailbox command complete list.
1276 * @phba: pointer to lpfc hba data structure.
1277 * @mbq: pointer to the driver internal queue element for mailbox command.
1278 *
1279 * This routine put the completed mailbox command into the mailbox command
1280 * complete list. This routine is called from driver interrupt handler
1281 * context.The mailbox complete list is used by the driver worker thread
1282 * to process mailbox complete callback functions outside the driver interrupt
1283 * handler.
1284 **/
880void 1285void
881lpfc_mbox_cmpl_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq) 1286lpfc_mbox_cmpl_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
882{ 1287{
@@ -887,6 +1292,17 @@ lpfc_mbox_cmpl_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
887 return; 1292 return;
888} 1293}
889 1294
1295/**
1296 * lpfc_mbox_tmo_val: Retrieve mailbox command timeout value.
1297 * @phba: pointer to lpfc hba data structure.
1298 * @cmd: mailbox command code.
1299 *
1300 * This routine retrieves the proper timeout value according to the mailbox
1301 * command code.
1302 *
1303 * Return codes
1304 * Timeout value to be used for the given mailbox command
1305 **/
890int 1306int
891lpfc_mbox_tmo_val(struct lpfc_hba *phba, int cmd) 1307lpfc_mbox_tmo_val(struct lpfc_hba *phba, int cmd)
892{ 1308{
diff --git a/drivers/scsi/lpfc/lpfc_mem.c b/drivers/scsi/lpfc/lpfc_mem.c
index 3c0cebc71800..a4bba2069248 100644
--- a/drivers/scsi/lpfc/lpfc_mem.c
+++ b/drivers/scsi/lpfc/lpfc_mem.c
@@ -1,7 +1,7 @@
1/******************************************************************* 1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for * 2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. * 3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2006 Emulex. All rights reserved. * 4 * Copyright (C) 2004-2008 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. * 5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com * 6 * www.emulex.com *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig * 7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -30,6 +30,7 @@
30 30
31#include "lpfc_hw.h" 31#include "lpfc_hw.h"
32#include "lpfc_sli.h" 32#include "lpfc_sli.h"
33#include "lpfc_nl.h"
33#include "lpfc_disc.h" 34#include "lpfc_disc.h"
34#include "lpfc_scsi.h" 35#include "lpfc_scsi.h"
35#include "lpfc.h" 36#include "lpfc.h"
@@ -39,7 +40,21 @@
39#define LPFC_MEM_POOL_SIZE 64 /* max elem in non-DMA safety pool */ 40#define LPFC_MEM_POOL_SIZE 64 /* max elem in non-DMA safety pool */
40 41
41 42
42 43/**
44 * lpfc_mem_alloc: create and allocate all PCI and memory pools
45 * @phba: HBA to allocate pools for
46 *
47 * Description: Creates and allocates PCI pools lpfc_scsi_dma_buf_pool,
48 * lpfc_mbuf_pool, lpfc_hbq_pool. Creates and allocates kmalloc-backed mempools
49 * for LPFC_MBOXQ_t and lpfc_nodelist. Also allocates the VPI bitmask.
50 *
51 * Notes: Not interrupt-safe. Must be called with no locks held. If any
52 * allocation fails, frees all successfully allocated memory before returning.
53 *
54 * Returns:
55 * 0 on success
56 * -ENOMEM on failure (if any memory allocations fail)
57 **/
43int 58int
44lpfc_mem_alloc(struct lpfc_hba * phba) 59lpfc_mem_alloc(struct lpfc_hba * phba)
45{ 60{
@@ -120,6 +135,16 @@ lpfc_mem_alloc(struct lpfc_hba * phba)
120 return -ENOMEM; 135 return -ENOMEM;
121} 136}
122 137
138/**
139 * lpfc_mem_free: Frees all PCI and memory allocated by lpfc_mem_alloc
140 * @phba: HBA to free memory for
141 *
142 * Description: Frees PCI pools lpfc_scsi_dma_buf_pool, lpfc_mbuf_pool,
143 * lpfc_hbq_pool. Frees kmalloc-backed mempools for LPFC_MBOXQ_t and
144 * lpfc_nodelist. Also frees the VPI bitmask.
145 *
146 * Returns: None
147 **/
123void 148void
124lpfc_mem_free(struct lpfc_hba * phba) 149lpfc_mem_free(struct lpfc_hba * phba)
125{ 150{
@@ -181,12 +206,29 @@ lpfc_mem_free(struct lpfc_hba * phba)
181 phba->lpfc_scsi_dma_buf_pool = NULL; 206 phba->lpfc_scsi_dma_buf_pool = NULL;
182 phba->lpfc_mbuf_pool = NULL; 207 phba->lpfc_mbuf_pool = NULL;
183 208
184 /* Free the iocb lookup array */ 209 /* Free the iocb lookup array */
185 kfree(psli->iocbq_lookup); 210 kfree(psli->iocbq_lookup);
186 psli->iocbq_lookup = NULL; 211 psli->iocbq_lookup = NULL;
187
188} 212}
189 213
214/**
215 * lpfc_mbuf_alloc: Allocate an mbuf from the lpfc_mbuf_pool PCI pool
216 * @phba: HBA which owns the pool to allocate from
217 * @mem_flags: indicates if this is a priority (MEM_PRI) allocation
218 * @handle: used to return the DMA-mapped address of the mbuf
219 *
220 * Description: Allocates a DMA-mapped buffer from the lpfc_mbuf_pool PCI pool.
221 * Allocates from generic pci_pool_alloc function first and if that fails and
222 * mem_flags has MEM_PRI set (the only defined flag), returns an mbuf from the
223 * HBA's pool.
224 *
225 * Notes: Not interrupt-safe. Must be called with no locks held. Takes
226 * phba->hbalock.
227 *
228 * Returns:
229 * pointer to the allocated mbuf on success
230 * NULL on failure
231 **/
190void * 232void *
191lpfc_mbuf_alloc(struct lpfc_hba *phba, int mem_flags, dma_addr_t *handle) 233lpfc_mbuf_alloc(struct lpfc_hba *phba, int mem_flags, dma_addr_t *handle)
192{ 234{
@@ -206,6 +248,20 @@ lpfc_mbuf_alloc(struct lpfc_hba *phba, int mem_flags, dma_addr_t *handle)
206 return ret; 248 return ret;
207} 249}
208 250
251/**
252 * __lpfc_mem_free: Free an mbuf from the lpfc_mbuf_pool PCI pool (locked)
253 * @phba: HBA which owns the pool to return to
254 * @virt: mbuf to free
255 * @dma: the DMA-mapped address of the lpfc_mbuf_pool to be freed
256 *
257 * Description: Returns an mbuf lpfc_mbuf_pool to the lpfc_mbuf_safety_pool if
258 * it is below its max_count, frees the mbuf otherwise.
259 *
260 * Notes: Must be called with phba->hbalock held to synchronize access to
261 * lpfc_mbuf_safety_pool.
262 *
263 * Returns: None
264 **/
209void 265void
210__lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma) 266__lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma)
211{ 267{
@@ -221,7 +277,21 @@ __lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma)
221 return; 277 return;
222} 278}
223 279
280/**
281 * lpfc_mem_free: Free an mbuf from the lpfc_mbuf_pool PCI pool (unlocked)
282 * @phba: HBA which owns the pool to return to
283 * @virt: mbuf to free
284 * @dma: the DMA-mapped address of the lpfc_mbuf_pool to be freed
285 *
286 * Description: Returns an mbuf lpfc_mbuf_pool to the lpfc_mbuf_safety_pool if
287 * it is below its max_count, frees the mbuf otherwise.
288 *
289 * Notes: Takes phba->hbalock. Can be called with or without other locks held.
290 *
291 * Returns: None
292 **/
224void 293void
294
225lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma) 295lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma)
226{ 296{
227 unsigned long iflags; 297 unsigned long iflags;
@@ -232,6 +302,19 @@ lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma)
232 return; 302 return;
233} 303}
234 304
305/**
306 * lpfc_els_hbq_alloc: Allocate an HBQ buffer
307 * @phba: HBA to allocate HBQ buffer for
308 *
309 * Description: Allocates a DMA-mapped HBQ buffer from the lpfc_hbq_pool PCI
310 * pool along a non-DMA-mapped container for it.
311 *
312 * Notes: Not interrupt-safe. Must be called with no locks held.
313 *
314 * Returns:
315 * pointer to HBQ on success
316 * NULL on failure
317 **/
235struct hbq_dmabuf * 318struct hbq_dmabuf *
236lpfc_els_hbq_alloc(struct lpfc_hba *phba) 319lpfc_els_hbq_alloc(struct lpfc_hba *phba)
237{ 320{
@@ -251,6 +334,18 @@ lpfc_els_hbq_alloc(struct lpfc_hba *phba)
251 return hbqbp; 334 return hbqbp;
252} 335}
253 336
337/**
338 * lpfc_mem_hbq_free: Frees an HBQ buffer allocated with lpfc_els_hbq_alloc
339 * @phba: HBA buffer was allocated for
340 * @hbqbp: HBQ container returned by lpfc_els_hbq_alloc
341 *
342 * Description: Frees both the container and the DMA-mapped buffer returned by
343 * lpfc_els_hbq_alloc.
344 *
345 * Notes: Can be called with or without locks held.
346 *
347 * Returns: None
348 **/
254void 349void
255lpfc_els_hbq_free(struct lpfc_hba *phba, struct hbq_dmabuf *hbqbp) 350lpfc_els_hbq_free(struct lpfc_hba *phba, struct hbq_dmabuf *hbqbp)
256{ 351{
@@ -259,7 +354,18 @@ lpfc_els_hbq_free(struct lpfc_hba *phba, struct hbq_dmabuf *hbqbp)
259 return; 354 return;
260} 355}
261 356
262/* This is ONLY called for the LPFC_ELS_HBQ */ 357/**
358 * lpfc_in_buf_free: Free a DMA buffer
359 * @phba: HBA buffer is associated with
360 * @mp: Buffer to free
361 *
362 * Description: Frees the given DMA buffer in the appropriate way given if the
363 * HBA is running in SLI3 mode with HBQs enabled.
364 *
365 * Notes: Takes phba->hbalock. Can be called with or without other locks held.
366 *
367 * Returns: None
368 **/
263void 369void
264lpfc_in_buf_free(struct lpfc_hba *phba, struct lpfc_dmabuf *mp) 370lpfc_in_buf_free(struct lpfc_hba *phba, struct lpfc_dmabuf *mp)
265{ 371{
diff --git a/drivers/scsi/lpfc/lpfc_nl.h b/drivers/scsi/lpfc/lpfc_nl.h
new file mode 100644
index 000000000000..1accb5a9f4e6
--- /dev/null
+++ b/drivers/scsi/lpfc/lpfc_nl.h
@@ -0,0 +1,163 @@
1/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2008 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
6 * www.emulex.com *
7 * *
8 * This program is free software; you can redistribute it and/or *
9 * modify it under the terms of version 2 of the GNU General *
10 * Public License as published by the Free Software Foundation. *
11 * This program is distributed in the hope that it will be useful. *
12 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
13 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
14 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
15 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
16 * TO BE LEGALLY INVALID. See the GNU General Public License for *
17 * more details, a copy of which can be found in the file COPYING *
18 * included with this package. *
19 *******************************************************************/
20
21/* Event definitions for RegisterForEvent */
22#define FC_REG_LINK_EVENT 0x0001 /* link up / down events */
23#define FC_REG_RSCN_EVENT 0x0002 /* RSCN events */
24#define FC_REG_CT_EVENT 0x0004 /* CT request events */
25#define FC_REG_DUMP_EVENT 0x0008 /* Dump events */
26#define FC_REG_TEMPERATURE_EVENT 0x0010 /* temperature events */
27#define FC_REG_ELS_EVENT 0x0020 /* lpfc els events */
28#define FC_REG_FABRIC_EVENT 0x0040 /* lpfc fabric events */
29#define FC_REG_SCSI_EVENT 0x0080 /* lpfc scsi events */
30#define FC_REG_BOARD_EVENT 0x0100 /* lpfc board events */
31#define FC_REG_ADAPTER_EVENT 0x0200 /* lpfc adapter events */
32#define FC_REG_EVENT_MASK (FC_REG_LINK_EVENT | \
33 FC_REG_RSCN_EVENT | \
34 FC_REG_CT_EVENT | \
35 FC_REG_DUMP_EVENT | \
36 FC_REG_TEMPERATURE_EVENT | \
37 FC_REG_ELS_EVENT | \
38 FC_REG_FABRIC_EVENT | \
39 FC_REG_SCSI_EVENT | \
40 FC_REG_BOARD_EVENT | \
41 FC_REG_ADAPTER_EVENT)
42/* Temperature events */
43#define LPFC_CRIT_TEMP 0x1
44#define LPFC_THRESHOLD_TEMP 0x2
45#define LPFC_NORMAL_TEMP 0x3
46/*
47 * All net link event payloads will begin with and event type
48 * and subcategory. The event type must come first.
49 * The subcategory further defines the data that follows in the rest
50 * of the payload. Each category will have its own unique header plus
51 * any addtional data unique to the subcategory.
52 * The payload sent via the fc transport is one-way driver->application.
53 */
54
55/* els event header */
56struct lpfc_els_event_header {
57 uint32_t event_type;
58 uint32_t subcategory;
59 uint8_t wwpn[8];
60 uint8_t wwnn[8];
61};
62
63/* subcategory codes for FC_REG_ELS_EVENT */
64#define LPFC_EVENT_PLOGI_RCV 0x01
65#define LPFC_EVENT_PRLO_RCV 0x02
66#define LPFC_EVENT_ADISC_RCV 0x04
67#define LPFC_EVENT_LSRJT_RCV 0x08
68
69/* special els lsrjt event */
70struct lpfc_lsrjt_event {
71 struct lpfc_els_event_header header;
72 uint32_t command;
73 uint32_t reason_code;
74 uint32_t explanation;
75};
76
77
78/* fabric event header */
79struct lpfc_fabric_event_header {
80 uint32_t event_type;
81 uint32_t subcategory;
82 uint8_t wwpn[8];
83 uint8_t wwnn[8];
84};
85
86/* subcategory codes for FC_REG_FABRIC_EVENT */
87#define LPFC_EVENT_FABRIC_BUSY 0x01
88#define LPFC_EVENT_PORT_BUSY 0x02
89#define LPFC_EVENT_FCPRDCHKERR 0x04
90
91/* special case fabric fcprdchkerr event */
92struct lpfc_fcprdchkerr_event {
93 struct lpfc_fabric_event_header header;
94 uint32_t lun;
95 uint32_t opcode;
96 uint32_t fcpiparam;
97};
98
99
100/* scsi event header */
101struct lpfc_scsi_event_header {
102 uint32_t event_type;
103 uint32_t subcategory;
104 uint32_t lun;
105 uint8_t wwpn[8];
106 uint8_t wwnn[8];
107};
108
109/* subcategory codes for FC_REG_SCSI_EVENT */
110#define LPFC_EVENT_QFULL 0x0001
111#define LPFC_EVENT_DEVBSY 0x0002
112#define LPFC_EVENT_CHECK_COND 0x0004
113#define LPFC_EVENT_LUNRESET 0x0008
114#define LPFC_EVENT_TGTRESET 0x0010
115#define LPFC_EVENT_BUSRESET 0x0020
116#define LPFC_EVENT_VARQUEDEPTH 0x0040
117
118/* special case scsi varqueuedepth event */
119struct lpfc_scsi_varqueuedepth_event {
120 struct lpfc_scsi_event_header scsi_event;
121 uint32_t oldval;
122 uint32_t newval;
123};
124
125/* special case scsi check condition event */
126struct lpfc_scsi_check_condition_event {
127 struct lpfc_scsi_event_header scsi_event;
128 uint8_t sense_key;
129 uint8_t asc;
130 uint8_t ascq;
131};
132
133/* event codes for FC_REG_BOARD_EVENT */
134#define LPFC_EVENT_PORTINTERR 0x01
135
136/* board event header */
137struct lpfc_board_event_header {
138 uint32_t event_type;
139 uint32_t subcategory;
140};
141
142
143/* event codes for FC_REG_ADAPTER_EVENT */
144#define LPFC_EVENT_ARRIVAL 0x01
145
146/* adapter event header */
147struct lpfc_adapter_event_header {
148 uint32_t event_type;
149 uint32_t subcategory;
150};
151
152
153/* event codes for temp_event */
154#define LPFC_CRIT_TEMP 0x1
155#define LPFC_THRESHOLD_TEMP 0x2
156#define LPFC_NORMAL_TEMP 0x3
157
158struct temp_event {
159 uint32_t event_type;
160 uint32_t event_code;
161 uint32_t data;
162};
163
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 6688a8689b56..0c25d97acb42 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -30,6 +30,7 @@
30 30
31#include "lpfc_hw.h" 31#include "lpfc_hw.h"
32#include "lpfc_sli.h" 32#include "lpfc_sli.h"
33#include "lpfc_nl.h"
33#include "lpfc_disc.h" 34#include "lpfc_disc.h"
34#include "lpfc_scsi.h" 35#include "lpfc_scsi.h"
35#include "lpfc.h" 36#include "lpfc.h"
@@ -1003,20 +1004,8 @@ lpfc_rcv_plogi_adisc_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1003 spin_lock_irq(shost->host_lock); 1004 spin_lock_irq(shost->host_lock);
1004 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC; 1005 ndlp->nlp_flag &= ~NLP_NPR_2B_DISC;
1005 spin_unlock_irq(shost->host_lock); 1006 spin_unlock_irq(shost->host_lock);
1006 1007 if (vport->num_disc_nodes)
1007 if (vport->num_disc_nodes) {
1008 lpfc_more_adisc(vport); 1008 lpfc_more_adisc(vport);
1009 if ((vport->num_disc_nodes == 0) &&
1010 (vport->fc_npr_cnt))
1011 lpfc_els_disc_plogi(vport);
1012 if (vport->num_disc_nodes == 0) {
1013 spin_lock_irq(shost->host_lock);
1014 vport->fc_flag &= ~FC_NDISC_ACTIVE;
1015 spin_unlock_irq(shost->host_lock);
1016 lpfc_can_disctmo(vport);
1017 lpfc_end_rscn(vport);
1018 }
1019 }
1020 } 1009 }
1021 return ndlp->nlp_state; 1010 return ndlp->nlp_state;
1022 } 1011 }
@@ -1865,8 +1854,13 @@ static uint32_t
1865lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, 1854lpfc_cmpl_logo_npr_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
1866 void *arg, uint32_t evt) 1855 void *arg, uint32_t evt)
1867{ 1856{
1857 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
1858 if (ndlp->nlp_DID == Fabric_DID) {
1859 spin_lock_irq(shost->host_lock);
1860 vport->fc_flag &= ~(FC_FABRIC | FC_PUBLIC_LOOP);
1861 spin_unlock_irq(shost->host_lock);
1862 }
1868 lpfc_unreg_rpi(vport, ndlp); 1863 lpfc_unreg_rpi(vport, ndlp);
1869 /* This routine does nothing, just return the current state */
1870 return ndlp->nlp_state; 1864 return ndlp->nlp_state;
1871} 1865}
1872 1866
@@ -2155,7 +2149,7 @@ lpfc_disc_state_machine(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
2155 lpfc_nlp_put(ndlp); 2149 lpfc_nlp_put(ndlp);
2156 } else { 2150 } else {
2157 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY, 2151 lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
2158 "0212 DSM out state %d on NPort free\n", rc); 2152 "0213 DSM out state %d on NPort free\n", rc);
2159 2153
2160 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM, 2154 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_DSM,
2161 "DSM out: ste:%d did:x%x flg:x%x", 2155 "DSM out: ste:%d did:x%x flg:x%x",
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 1bcebbd3dfac..bd1867411821 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -32,6 +32,7 @@
32#include "lpfc_version.h" 32#include "lpfc_version.h"
33#include "lpfc_hw.h" 33#include "lpfc_hw.h"
34#include "lpfc_sli.h" 34#include "lpfc_sli.h"
35#include "lpfc_nl.h"
35#include "lpfc_disc.h" 36#include "lpfc_disc.h"
36#include "lpfc_scsi.h" 37#include "lpfc_scsi.h"
37#include "lpfc.h" 38#include "lpfc.h"
@@ -42,6 +43,111 @@
42#define LPFC_RESET_WAIT 2 43#define LPFC_RESET_WAIT 2
43#define LPFC_ABORT_WAIT 2 44#define LPFC_ABORT_WAIT 2
44 45
46/**
47 * lpfc_update_stats: Update statistical data for the command completion.
48 * @phba: Pointer to HBA object.
49 * @lpfc_cmd: lpfc scsi command object pointer.
50 *
51 * This function is called when there is a command completion and this
52 * function updates the statistical data for the command completion.
53 **/
54static void
55lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
56{
57 struct lpfc_rport_data *rdata = lpfc_cmd->rdata;
58 struct lpfc_nodelist *pnode = rdata->pnode;
59 struct scsi_cmnd *cmd = lpfc_cmd->pCmd;
60 unsigned long flags;
61 struct Scsi_Host *shost = cmd->device->host;
62 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
63 unsigned long latency;
64 int i;
65
66 if (cmd->result)
67 return;
68
69 spin_lock_irqsave(shost->host_lock, flags);
70 if (!vport->stat_data_enabled ||
71 vport->stat_data_blocked ||
72 !pnode->lat_data ||
73 (phba->bucket_type == LPFC_NO_BUCKET)) {
74 spin_unlock_irqrestore(shost->host_lock, flags);
75 return;
76 }
77 latency = jiffies_to_msecs(jiffies - lpfc_cmd->start_time);
78
79 if (phba->bucket_type == LPFC_LINEAR_BUCKET) {
80 i = (latency + phba->bucket_step - 1 - phba->bucket_base)/
81 phba->bucket_step;
82 if (i >= LPFC_MAX_BUCKET_COUNT)
83 i = LPFC_MAX_BUCKET_COUNT;
84 } else {
85 for (i = 0; i < LPFC_MAX_BUCKET_COUNT-1; i++)
86 if (latency <= (phba->bucket_base +
87 ((1<<i)*phba->bucket_step)))
88 break;
89 }
90
91 pnode->lat_data[i].cmd_count++;
92 spin_unlock_irqrestore(shost->host_lock, flags);
93}
94
95
96/**
97 * lpfc_send_sdev_queuedepth_change_event: Posts a queuedepth change
98 * event.
99 * @phba: Pointer to HBA context object.
100 * @vport: Pointer to vport object.
101 * @ndlp: Pointer to FC node associated with the target.
102 * @lun: Lun number of the scsi device.
103 * @old_val: Old value of the queue depth.
104 * @new_val: New value of the queue depth.
105 *
106 * This function sends an event to the mgmt application indicating
107 * there is a change in the scsi device queue depth.
108 **/
109static void
110lpfc_send_sdev_queuedepth_change_event(struct lpfc_hba *phba,
111 struct lpfc_vport *vport,
112 struct lpfc_nodelist *ndlp,
113 uint32_t lun,
114 uint32_t old_val,
115 uint32_t new_val)
116{
117 struct lpfc_fast_path_event *fast_path_evt;
118 unsigned long flags;
119
120 fast_path_evt = lpfc_alloc_fast_evt(phba);
121 if (!fast_path_evt)
122 return;
123
124 fast_path_evt->un.queue_depth_evt.scsi_event.event_type =
125 FC_REG_SCSI_EVENT;
126 fast_path_evt->un.queue_depth_evt.scsi_event.subcategory =
127 LPFC_EVENT_VARQUEDEPTH;
128
129 /* Report all luns with change in queue depth */
130 fast_path_evt->un.queue_depth_evt.scsi_event.lun = lun;
131 if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
132 memcpy(&fast_path_evt->un.queue_depth_evt.scsi_event.wwpn,
133 &ndlp->nlp_portname, sizeof(struct lpfc_name));
134 memcpy(&fast_path_evt->un.queue_depth_evt.scsi_event.wwnn,
135 &ndlp->nlp_nodename, sizeof(struct lpfc_name));
136 }
137
138 fast_path_evt->un.queue_depth_evt.oldval = old_val;
139 fast_path_evt->un.queue_depth_evt.newval = new_val;
140 fast_path_evt->vport = vport;
141
142 fast_path_evt->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
143 spin_lock_irqsave(&phba->hbalock, flags);
144 list_add_tail(&fast_path_evt->work_evt.evt_listp, &phba->work_list);
145 spin_unlock_irqrestore(&phba->hbalock, flags);
146 lpfc_worker_wake_up(phba);
147
148 return;
149}
150
45/* 151/*
46 * This function is called with no lock held when there is a resource 152 * This function is called with no lock held when there is a resource
47 * error in driver or in firmware. 153 * error in driver or in firmware.
@@ -117,9 +223,10 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
117 struct lpfc_vport **vports; 223 struct lpfc_vport **vports;
118 struct Scsi_Host *shost; 224 struct Scsi_Host *shost;
119 struct scsi_device *sdev; 225 struct scsi_device *sdev;
120 unsigned long new_queue_depth; 226 unsigned long new_queue_depth, old_queue_depth;
121 unsigned long num_rsrc_err, num_cmd_success; 227 unsigned long num_rsrc_err, num_cmd_success;
122 int i; 228 int i;
229 struct lpfc_rport_data *rdata;
123 230
124 num_rsrc_err = atomic_read(&phba->num_rsrc_err); 231 num_rsrc_err = atomic_read(&phba->num_rsrc_err);
125 num_cmd_success = atomic_read(&phba->num_cmd_success); 232 num_cmd_success = atomic_read(&phba->num_cmd_success);
@@ -137,6 +244,7 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
137 else 244 else
138 new_queue_depth = sdev->queue_depth - 245 new_queue_depth = sdev->queue_depth -
139 new_queue_depth; 246 new_queue_depth;
247 old_queue_depth = sdev->queue_depth;
140 if (sdev->ordered_tags) 248 if (sdev->ordered_tags)
141 scsi_adjust_queue_depth(sdev, 249 scsi_adjust_queue_depth(sdev,
142 MSG_ORDERED_TAG, 250 MSG_ORDERED_TAG,
@@ -145,6 +253,13 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
145 scsi_adjust_queue_depth(sdev, 253 scsi_adjust_queue_depth(sdev,
146 MSG_SIMPLE_TAG, 254 MSG_SIMPLE_TAG,
147 new_queue_depth); 255 new_queue_depth);
256 rdata = sdev->hostdata;
257 if (rdata)
258 lpfc_send_sdev_queuedepth_change_event(
259 phba, vports[i],
260 rdata->pnode,
261 sdev->lun, old_queue_depth,
262 new_queue_depth);
148 } 263 }
149 } 264 }
150 lpfc_destroy_vport_work_array(phba, vports); 265 lpfc_destroy_vport_work_array(phba, vports);
@@ -159,6 +274,7 @@ lpfc_ramp_up_queue_handler(struct lpfc_hba *phba)
159 struct Scsi_Host *shost; 274 struct Scsi_Host *shost;
160 struct scsi_device *sdev; 275 struct scsi_device *sdev;
161 int i; 276 int i;
277 struct lpfc_rport_data *rdata;
162 278
163 vports = lpfc_create_vport_work_array(phba); 279 vports = lpfc_create_vport_work_array(phba);
164 if (vports != NULL) 280 if (vports != NULL)
@@ -176,6 +292,14 @@ lpfc_ramp_up_queue_handler(struct lpfc_hba *phba)
176 scsi_adjust_queue_depth(sdev, 292 scsi_adjust_queue_depth(sdev,
177 MSG_SIMPLE_TAG, 293 MSG_SIMPLE_TAG,
178 sdev->queue_depth+1); 294 sdev->queue_depth+1);
295 rdata = sdev->hostdata;
296 if (rdata)
297 lpfc_send_sdev_queuedepth_change_event(
298 phba, vports[i],
299 rdata->pnode,
300 sdev->lun,
301 sdev->queue_depth - 1,
302 sdev->queue_depth);
179 } 303 }
180 } 304 }
181 lpfc_destroy_vport_work_array(phba, vports); 305 lpfc_destroy_vport_work_array(phba, vports);
@@ -183,6 +307,35 @@ lpfc_ramp_up_queue_handler(struct lpfc_hba *phba)
183 atomic_set(&phba->num_cmd_success, 0); 307 atomic_set(&phba->num_cmd_success, 0);
184} 308}
185 309
310/**
311 * lpfc_scsi_dev_block: set all scsi hosts to block state.
312 * @phba: Pointer to HBA context object.
313 *
314 * This function walks vport list and set each SCSI host to block state
315 * by invoking fc_remote_port_delete() routine. This function is invoked
316 * with EEH when device's PCI slot has been permanently disabled.
317 **/
318void
319lpfc_scsi_dev_block(struct lpfc_hba *phba)
320{
321 struct lpfc_vport **vports;
322 struct Scsi_Host *shost;
323 struct scsi_device *sdev;
324 struct fc_rport *rport;
325 int i;
326
327 vports = lpfc_create_vport_work_array(phba);
328 if (vports != NULL)
329 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
330 shost = lpfc_shost_from_vport(vports[i]);
331 shost_for_each_device(sdev, shost) {
332 rport = starget_to_rport(scsi_target(sdev));
333 fc_remote_port_delete(rport);
334 }
335 }
336 lpfc_destroy_vport_work_array(phba, vports);
337}
338
186/* 339/*
187 * This routine allocates a scsi buffer, which contains all the necessary 340 * This routine allocates a scsi buffer, which contains all the necessary
188 * information needed to initiate a SCSI I/O. The non-DMAable buffer region 341 * information needed to initiate a SCSI I/O. The non-DMAable buffer region
@@ -198,7 +351,9 @@ lpfc_new_scsi_buf(struct lpfc_vport *vport)
198 struct lpfc_scsi_buf *psb; 351 struct lpfc_scsi_buf *psb;
199 struct ulp_bde64 *bpl; 352 struct ulp_bde64 *bpl;
200 IOCB_t *iocb; 353 IOCB_t *iocb;
201 dma_addr_t pdma_phys; 354 dma_addr_t pdma_phys_fcp_cmd;
355 dma_addr_t pdma_phys_fcp_rsp;
356 dma_addr_t pdma_phys_bpl;
202 uint16_t iotag; 357 uint16_t iotag;
203 358
204 psb = kzalloc(sizeof(struct lpfc_scsi_buf), GFP_KERNEL); 359 psb = kzalloc(sizeof(struct lpfc_scsi_buf), GFP_KERNEL);
@@ -238,40 +393,60 @@ lpfc_new_scsi_buf(struct lpfc_vport *vport)
238 393
239 /* Initialize local short-hand pointers. */ 394 /* Initialize local short-hand pointers. */
240 bpl = psb->fcp_bpl; 395 bpl = psb->fcp_bpl;
241 pdma_phys = psb->dma_handle; 396 pdma_phys_fcp_cmd = psb->dma_handle;
397 pdma_phys_fcp_rsp = psb->dma_handle + sizeof(struct fcp_cmnd);
398 pdma_phys_bpl = psb->dma_handle + sizeof(struct fcp_cmnd) +
399 sizeof(struct fcp_rsp);
242 400
243 /* 401 /*
244 * The first two bdes are the FCP_CMD and FCP_RSP. The balance are sg 402 * The first two bdes are the FCP_CMD and FCP_RSP. The balance are sg
245 * list bdes. Initialize the first two and leave the rest for 403 * list bdes. Initialize the first two and leave the rest for
246 * queuecommand. 404 * queuecommand.
247 */ 405 */
248 bpl->addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys)); 406 bpl[0].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_cmd));
249 bpl->addrLow = le32_to_cpu(putPaddrLow(pdma_phys)); 407 bpl[0].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_cmd));
250 bpl->tus.f.bdeSize = sizeof (struct fcp_cmnd); 408 bpl[0].tus.f.bdeSize = sizeof(struct fcp_cmnd);
251 bpl->tus.f.bdeFlags = BUFF_USE_CMND; 409 bpl[0].tus.f.bdeFlags = BUFF_TYPE_BDE_64;
252 bpl->tus.w = le32_to_cpu(bpl->tus.w); 410 bpl[0].tus.w = le32_to_cpu(bpl->tus.w);
253 bpl++;
254 411
255 /* Setup the physical region for the FCP RSP */ 412 /* Setup the physical region for the FCP RSP */
256 pdma_phys += sizeof (struct fcp_cmnd); 413 bpl[1].addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys_fcp_rsp));
257 bpl->addrHigh = le32_to_cpu(putPaddrHigh(pdma_phys)); 414 bpl[1].addrLow = le32_to_cpu(putPaddrLow(pdma_phys_fcp_rsp));
258 bpl->addrLow = le32_to_cpu(putPaddrLow(pdma_phys)); 415 bpl[1].tus.f.bdeSize = sizeof(struct fcp_rsp);
259 bpl->tus.f.bdeSize = sizeof (struct fcp_rsp); 416 bpl[1].tus.f.bdeFlags = BUFF_TYPE_BDE_64;
260 bpl->tus.f.bdeFlags = (BUFF_USE_CMND | BUFF_USE_RCV); 417 bpl[1].tus.w = le32_to_cpu(bpl->tus.w);
261 bpl->tus.w = le32_to_cpu(bpl->tus.w);
262 418
263 /* 419 /*
264 * Since the IOCB for the FCP I/O is built into this lpfc_scsi_buf, 420 * Since the IOCB for the FCP I/O is built into this lpfc_scsi_buf,
265 * initialize it with all known data now. 421 * initialize it with all known data now.
266 */ 422 */
267 pdma_phys += (sizeof (struct fcp_rsp));
268 iocb = &psb->cur_iocbq.iocb; 423 iocb = &psb->cur_iocbq.iocb;
269 iocb->un.fcpi64.bdl.ulpIoTag32 = 0; 424 iocb->un.fcpi64.bdl.ulpIoTag32 = 0;
270 iocb->un.fcpi64.bdl.addrHigh = putPaddrHigh(pdma_phys); 425 if (phba->sli_rev == 3) {
271 iocb->un.fcpi64.bdl.addrLow = putPaddrLow(pdma_phys); 426 /* fill in immediate fcp command BDE */
272 iocb->un.fcpi64.bdl.bdeSize = (2 * sizeof (struct ulp_bde64)); 427 iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_IMMED;
273 iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDL; 428 iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd);
274 iocb->ulpBdeCount = 1; 429 iocb->un.fcpi64.bdl.addrLow = offsetof(IOCB_t,
430 unsli3.fcp_ext.icd);
431 iocb->un.fcpi64.bdl.addrHigh = 0;
432 iocb->ulpBdeCount = 0;
433 iocb->ulpLe = 0;
434 /* fill in responce BDE */
435 iocb->unsli3.fcp_ext.rbde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
436 iocb->unsli3.fcp_ext.rbde.tus.f.bdeSize =
437 sizeof(struct fcp_rsp);
438 iocb->unsli3.fcp_ext.rbde.addrLow =
439 putPaddrLow(pdma_phys_fcp_rsp);
440 iocb->unsli3.fcp_ext.rbde.addrHigh =
441 putPaddrHigh(pdma_phys_fcp_rsp);
442 } else {
443 iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BLP_64;
444 iocb->un.fcpi64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64));
445 iocb->un.fcpi64.bdl.addrLow = putPaddrLow(pdma_phys_bpl);
446 iocb->un.fcpi64.bdl.addrHigh = putPaddrHigh(pdma_phys_bpl);
447 iocb->ulpBdeCount = 1;
448 iocb->ulpLe = 1;
449 }
275 iocb->ulpClass = CLASS3; 450 iocb->ulpClass = CLASS3;
276 451
277 return psb; 452 return psb;
@@ -313,8 +488,9 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
313 struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd; 488 struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd;
314 struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl; 489 struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl;
315 IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb; 490 IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb;
491 struct ulp_bde64 *data_bde = iocb_cmd->unsli3.fcp_ext.dbde;
316 dma_addr_t physaddr; 492 dma_addr_t physaddr;
317 uint32_t i, num_bde = 0; 493 uint32_t num_bde = 0;
318 int nseg, datadir = scsi_cmnd->sc_data_direction; 494 int nseg, datadir = scsi_cmnd->sc_data_direction;
319 495
320 /* 496 /*
@@ -352,37 +528,159 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
352 * during probe that limits the number of sg elements in any 528 * during probe that limits the number of sg elements in any
353 * single scsi command. Just run through the seg_cnt and format 529 * single scsi command. Just run through the seg_cnt and format
354 * the bde's. 530 * the bde's.
531 * When using SLI-3 the driver will try to fit all the BDEs into
532 * the IOCB. If it can't then the BDEs get added to a BPL as it
533 * does for SLI-2 mode.
355 */ 534 */
356 scsi_for_each_sg(scsi_cmnd, sgel, nseg, i) { 535 scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) {
357 physaddr = sg_dma_address(sgel); 536 physaddr = sg_dma_address(sgel);
358 bpl->addrLow = le32_to_cpu(putPaddrLow(physaddr)); 537 if (phba->sli_rev == 3 &&
359 bpl->addrHigh = le32_to_cpu(putPaddrHigh(physaddr)); 538 nseg <= LPFC_EXT_DATA_BDE_COUNT) {
360 bpl->tus.f.bdeSize = sg_dma_len(sgel); 539 data_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
361 if (datadir == DMA_TO_DEVICE) 540 data_bde->tus.f.bdeSize = sg_dma_len(sgel);
362 bpl->tus.f.bdeFlags = 0; 541 data_bde->addrLow = putPaddrLow(physaddr);
363 else 542 data_bde->addrHigh = putPaddrHigh(physaddr);
364 bpl->tus.f.bdeFlags = BUFF_USE_RCV; 543 data_bde++;
365 bpl->tus.w = le32_to_cpu(bpl->tus.w); 544 } else {
366 bpl++; 545 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
367 num_bde++; 546 bpl->tus.f.bdeSize = sg_dma_len(sgel);
547 bpl->tus.w = le32_to_cpu(bpl->tus.w);
548 bpl->addrLow =
549 le32_to_cpu(putPaddrLow(physaddr));
550 bpl->addrHigh =
551 le32_to_cpu(putPaddrHigh(physaddr));
552 bpl++;
553 }
368 } 554 }
369 } 555 }
370 556
371 /* 557 /*
372 * Finish initializing those IOCB fields that are dependent on the 558 * Finish initializing those IOCB fields that are dependent on the
373 * scsi_cmnd request_buffer. Note that the bdeSize is explicitly 559 * scsi_cmnd request_buffer. Note that for SLI-2 the bdeSize is
374 * reinitialized since all iocb memory resources are used many times 560 * explicitly reinitialized and for SLI-3 the extended bde count is
375 * for transmit, receive, and continuation bpl's. 561 * explicitly reinitialized since all iocb memory resources are reused.
376 */ 562 */
377 iocb_cmd->un.fcpi64.bdl.bdeSize = (2 * sizeof (struct ulp_bde64)); 563 if (phba->sli_rev == 3) {
378 iocb_cmd->un.fcpi64.bdl.bdeSize += 564 if (num_bde > LPFC_EXT_DATA_BDE_COUNT) {
379 (num_bde * sizeof (struct ulp_bde64)); 565 /*
380 iocb_cmd->ulpBdeCount = 1; 566 * The extended IOCB format can only fit 3 BDE or a BPL.
381 iocb_cmd->ulpLe = 1; 567 * This I/O has more than 3 BDE so the 1st data bde will
568 * be a BPL that is filled in here.
569 */
570 physaddr = lpfc_cmd->dma_handle;
571 data_bde->tus.f.bdeFlags = BUFF_TYPE_BLP_64;
572 data_bde->tus.f.bdeSize = (num_bde *
573 sizeof(struct ulp_bde64));
574 physaddr += (sizeof(struct fcp_cmnd) +
575 sizeof(struct fcp_rsp) +
576 (2 * sizeof(struct ulp_bde64)));
577 data_bde->addrHigh = putPaddrHigh(physaddr);
578 data_bde->addrLow = putPaddrLow(physaddr);
579 /* ebde count includes the responce bde and data bpl */
580 iocb_cmd->unsli3.fcp_ext.ebde_count = 2;
581 } else {
582 /* ebde count includes the responce bde and data bdes */
583 iocb_cmd->unsli3.fcp_ext.ebde_count = (num_bde + 1);
584 }
585 } else {
586 iocb_cmd->un.fcpi64.bdl.bdeSize =
587 ((num_bde + 2) * sizeof(struct ulp_bde64));
588 }
382 fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); 589 fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd));
383 return 0; 590 return 0;
384} 591}
385 592
593/**
594 * lpfc_send_scsi_error_event: Posts an event when there is SCSI error.
595 * @phba: Pointer to hba context object.
596 * @vport: Pointer to vport object.
597 * @lpfc_cmd: Pointer to lpfc scsi command which reported the error.
598 * @rsp_iocb: Pointer to response iocb object which reported error.
599 *
600 * This function posts an event when there is a SCSI command reporting
601 * error from the scsi device.
602 **/
603static void
604lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport,
605 struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_iocbq *rsp_iocb) {
606 struct scsi_cmnd *cmnd = lpfc_cmd->pCmd;
607 struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp;
608 uint32_t resp_info = fcprsp->rspStatus2;
609 uint32_t scsi_status = fcprsp->rspStatus3;
610 uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm;
611 struct lpfc_fast_path_event *fast_path_evt = NULL;
612 struct lpfc_nodelist *pnode = lpfc_cmd->rdata->pnode;
613 unsigned long flags;
614
615 /* If there is queuefull or busy condition send a scsi event */
616 if ((cmnd->result == SAM_STAT_TASK_SET_FULL) ||
617 (cmnd->result == SAM_STAT_BUSY)) {
618 fast_path_evt = lpfc_alloc_fast_evt(phba);
619 if (!fast_path_evt)
620 return;
621 fast_path_evt->un.scsi_evt.event_type =
622 FC_REG_SCSI_EVENT;
623 fast_path_evt->un.scsi_evt.subcategory =
624 (cmnd->result == SAM_STAT_TASK_SET_FULL) ?
625 LPFC_EVENT_QFULL : LPFC_EVENT_DEVBSY;
626 fast_path_evt->un.scsi_evt.lun = cmnd->device->lun;
627 memcpy(&fast_path_evt->un.scsi_evt.wwpn,
628 &pnode->nlp_portname, sizeof(struct lpfc_name));
629 memcpy(&fast_path_evt->un.scsi_evt.wwnn,
630 &pnode->nlp_nodename, sizeof(struct lpfc_name));
631 } else if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen &&
632 ((cmnd->cmnd[0] == READ_10) || (cmnd->cmnd[0] == WRITE_10))) {
633 fast_path_evt = lpfc_alloc_fast_evt(phba);
634 if (!fast_path_evt)
635 return;
636 fast_path_evt->un.check_cond_evt.scsi_event.event_type =
637 FC_REG_SCSI_EVENT;
638 fast_path_evt->un.check_cond_evt.scsi_event.subcategory =
639 LPFC_EVENT_CHECK_COND;
640 fast_path_evt->un.check_cond_evt.scsi_event.lun =
641 cmnd->device->lun;
642 memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwpn,
643 &pnode->nlp_portname, sizeof(struct lpfc_name));
644 memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwnn,
645 &pnode->nlp_nodename, sizeof(struct lpfc_name));
646 fast_path_evt->un.check_cond_evt.sense_key =
647 cmnd->sense_buffer[2] & 0xf;
648 fast_path_evt->un.check_cond_evt.asc = cmnd->sense_buffer[12];
649 fast_path_evt->un.check_cond_evt.ascq = cmnd->sense_buffer[13];
650 } else if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) &&
651 fcpi_parm &&
652 ((be32_to_cpu(fcprsp->rspResId) != fcpi_parm) ||
653 ((scsi_status == SAM_STAT_GOOD) &&
654 !(resp_info & (RESID_UNDER | RESID_OVER))))) {
655 /*
656 * If status is good or resid does not match with fcp_param and
657 * there is valid fcpi_parm, then there is a read_check error
658 */
659 fast_path_evt = lpfc_alloc_fast_evt(phba);
660 if (!fast_path_evt)
661 return;
662 fast_path_evt->un.read_check_error.header.event_type =
663 FC_REG_FABRIC_EVENT;
664 fast_path_evt->un.read_check_error.header.subcategory =
665 LPFC_EVENT_FCPRDCHKERR;
666 memcpy(&fast_path_evt->un.read_check_error.header.wwpn,
667 &pnode->nlp_portname, sizeof(struct lpfc_name));
668 memcpy(&fast_path_evt->un.read_check_error.header.wwnn,
669 &pnode->nlp_nodename, sizeof(struct lpfc_name));
670 fast_path_evt->un.read_check_error.lun = cmnd->device->lun;
671 fast_path_evt->un.read_check_error.opcode = cmnd->cmnd[0];
672 fast_path_evt->un.read_check_error.fcpiparam =
673 fcpi_parm;
674 } else
675 return;
676
677 fast_path_evt->vport = vport;
678 spin_lock_irqsave(&phba->hbalock, flags);
679 list_add_tail(&fast_path_evt->work_evt.evt_listp, &phba->work_list);
680 spin_unlock_irqrestore(&phba->hbalock, flags);
681 lpfc_worker_wake_up(phba);
682 return;
683}
386static void 684static void
387lpfc_scsi_unprep_dma_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * psb) 685lpfc_scsi_unprep_dma_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * psb)
388{ 686{
@@ -411,6 +709,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
411 uint32_t rsplen = 0; 709 uint32_t rsplen = 0;
412 uint32_t logit = LOG_FCP | LOG_FCP_ERROR; 710 uint32_t logit = LOG_FCP | LOG_FCP_ERROR;
413 711
712
414 /* 713 /*
415 * If this is a task management command, there is no 714 * If this is a task management command, there is no
416 * scsi packet associated with this lpfc_cmd. The driver 715 * scsi packet associated with this lpfc_cmd. The driver
@@ -526,6 +825,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
526 825
527 out: 826 out:
528 cmnd->result = ScsiResult(host_status, scsi_status); 827 cmnd->result = ScsiResult(host_status, scsi_status);
828 lpfc_send_scsi_error_event(vport->phba, vport, lpfc_cmd, rsp_iocb);
529} 829}
530 830
531static void 831static void
@@ -542,9 +842,11 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
542 struct scsi_device *sdev, *tmp_sdev; 842 struct scsi_device *sdev, *tmp_sdev;
543 int depth = 0; 843 int depth = 0;
544 unsigned long flags; 844 unsigned long flags;
845 struct lpfc_fast_path_event *fast_path_evt;
545 846
546 lpfc_cmd->result = pIocbOut->iocb.un.ulpWord[4]; 847 lpfc_cmd->result = pIocbOut->iocb.un.ulpWord[4];
547 lpfc_cmd->status = pIocbOut->iocb.ulpStatus; 848 lpfc_cmd->status = pIocbOut->iocb.ulpStatus;
849 atomic_dec(&pnode->cmd_pending);
548 850
549 if (lpfc_cmd->status) { 851 if (lpfc_cmd->status) {
550 if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT && 852 if (lpfc_cmd->status == IOSTAT_LOCAL_REJECT &&
@@ -570,12 +872,36 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
570 break; 872 break;
571 case IOSTAT_NPORT_BSY: 873 case IOSTAT_NPORT_BSY:
572 case IOSTAT_FABRIC_BSY: 874 case IOSTAT_FABRIC_BSY:
573 cmd->result = ScsiResult(DID_BUS_BUSY, 0); 875 cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, 0);
876 fast_path_evt = lpfc_alloc_fast_evt(phba);
877 if (!fast_path_evt)
878 break;
879 fast_path_evt->un.fabric_evt.event_type =
880 FC_REG_FABRIC_EVENT;
881 fast_path_evt->un.fabric_evt.subcategory =
882 (lpfc_cmd->status == IOSTAT_NPORT_BSY) ?
883 LPFC_EVENT_PORT_BUSY : LPFC_EVENT_FABRIC_BUSY;
884 if (pnode && NLP_CHK_NODE_ACT(pnode)) {
885 memcpy(&fast_path_evt->un.fabric_evt.wwpn,
886 &pnode->nlp_portname,
887 sizeof(struct lpfc_name));
888 memcpy(&fast_path_evt->un.fabric_evt.wwnn,
889 &pnode->nlp_nodename,
890 sizeof(struct lpfc_name));
891 }
892 fast_path_evt->vport = vport;
893 fast_path_evt->work_evt.evt =
894 LPFC_EVT_FASTPATH_MGMT_EVT;
895 spin_lock_irqsave(&phba->hbalock, flags);
896 list_add_tail(&fast_path_evt->work_evt.evt_listp,
897 &phba->work_list);
898 spin_unlock_irqrestore(&phba->hbalock, flags);
899 lpfc_worker_wake_up(phba);
574 break; 900 break;
575 case IOSTAT_LOCAL_REJECT: 901 case IOSTAT_LOCAL_REJECT:
576 if (lpfc_cmd->result == RJT_UNAVAIL_PERM || 902 if (lpfc_cmd->result == IOERR_INVALID_RPI ||
577 lpfc_cmd->result == IOERR_NO_RESOURCES || 903 lpfc_cmd->result == IOERR_NO_RESOURCES ||
578 lpfc_cmd->result == RJT_LOGIN_REQUIRED) { 904 lpfc_cmd->result == IOERR_ABORT_REQUESTED) {
579 cmd->result = ScsiResult(DID_REQUEUE, 0); 905 cmd->result = ScsiResult(DID_REQUEUE, 0);
580 break; 906 break;
581 } /* else: fall through */ 907 } /* else: fall through */
@@ -586,7 +912,8 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
586 912
587 if (!pnode || !NLP_CHK_NODE_ACT(pnode) 913 if (!pnode || !NLP_CHK_NODE_ACT(pnode)
588 || (pnode->nlp_state != NLP_STE_MAPPED_NODE)) 914 || (pnode->nlp_state != NLP_STE_MAPPED_NODE))
589 cmd->result = ScsiResult(DID_BUS_BUSY, SAM_STAT_BUSY); 915 cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED,
916 SAM_STAT_BUSY);
590 } else { 917 } else {
591 cmd->result = ScsiResult(DID_OK, 0); 918 cmd->result = ScsiResult(DID_OK, 0);
592 } 919 }
@@ -602,8 +929,32 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
602 scsi_get_resid(cmd)); 929 scsi_get_resid(cmd));
603 } 930 }
604 931
932 lpfc_update_stats(phba, lpfc_cmd);
605 result = cmd->result; 933 result = cmd->result;
606 sdev = cmd->device; 934 sdev = cmd->device;
935 if (vport->cfg_max_scsicmpl_time &&
936 time_after(jiffies, lpfc_cmd->start_time +
937 msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) {
938 spin_lock_irqsave(sdev->host->host_lock, flags);
939 if ((pnode->cmd_qdepth > atomic_read(&pnode->cmd_pending) &&
940 (atomic_read(&pnode->cmd_pending) > LPFC_MIN_TGT_QDEPTH) &&
941 ((cmd->cmnd[0] == READ_10) || (cmd->cmnd[0] == WRITE_10))))
942 pnode->cmd_qdepth = atomic_read(&pnode->cmd_pending);
943
944 pnode->last_change_time = jiffies;
945 spin_unlock_irqrestore(sdev->host->host_lock, flags);
946 } else if ((pnode->cmd_qdepth < LPFC_MAX_TGT_QDEPTH) &&
947 time_after(jiffies, pnode->last_change_time +
948 msecs_to_jiffies(LPFC_TGTQ_INTERVAL))) {
949 spin_lock_irqsave(sdev->host->host_lock, flags);
950 pnode->cmd_qdepth += pnode->cmd_qdepth *
951 LPFC_TGTQ_RAMPUP_PCENT / 100;
952 if (pnode->cmd_qdepth > LPFC_MAX_TGT_QDEPTH)
953 pnode->cmd_qdepth = LPFC_MAX_TGT_QDEPTH;
954 pnode->last_change_time = jiffies;
955 spin_unlock_irqrestore(sdev->host->host_lock, flags);
956 }
957
607 lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); 958 lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd);
608 cmd->scsi_done(cmd); 959 cmd->scsi_done(cmd);
609 960
@@ -647,6 +998,9 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
647 pnode->last_ramp_up_time = jiffies; 998 pnode->last_ramp_up_time = jiffies;
648 } 999 }
649 } 1000 }
1001 lpfc_send_sdev_queuedepth_change_event(phba, vport, pnode,
1002 0xFFFFFFFF,
1003 sdev->queue_depth - 1, sdev->queue_depth);
650 } 1004 }
651 1005
652 /* 1006 /*
@@ -676,6 +1030,9 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
676 lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, 1030 lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
677 "0711 detected queue full - lun queue " 1031 "0711 detected queue full - lun queue "
678 "depth adjusted to %d.\n", depth); 1032 "depth adjusted to %d.\n", depth);
1033 lpfc_send_sdev_queuedepth_change_event(phba, vport,
1034 pnode, 0xFFFFFFFF,
1035 depth+1, depth);
679 } 1036 }
680 } 1037 }
681 1038
@@ -692,6 +1049,24 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
692 lpfc_release_scsi_buf(phba, lpfc_cmd); 1049 lpfc_release_scsi_buf(phba, lpfc_cmd);
693} 1050}
694 1051
1052/**
1053 * lpfc_fcpcmd_to_iocb - copy the fcp_cmd data into the IOCB.
1054 * @data: A pointer to the immediate command data portion of the IOCB.
1055 * @fcp_cmnd: The FCP Command that is provided by the SCSI layer.
1056 *
1057 * The routine copies the entire FCP command from @fcp_cmnd to @data while
1058 * byte swapping the data to big endian format for transmission on the wire.
1059 **/
1060static void
1061lpfc_fcpcmd_to_iocb(uint8_t *data, struct fcp_cmnd *fcp_cmnd)
1062{
1063 int i, j;
1064 for (i = 0, j = 0; i < sizeof(struct fcp_cmnd);
1065 i += sizeof(uint32_t), j++) {
1066 ((uint32_t *)data)[j] = cpu_to_be32(((uint32_t *)fcp_cmnd)[j]);
1067 }
1068}
1069
695static void 1070static void
696lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd, 1071lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
697 struct lpfc_nodelist *pnode) 1072 struct lpfc_nodelist *pnode)
@@ -758,7 +1133,8 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
758 fcp_cmnd->fcpCntl3 = 0; 1133 fcp_cmnd->fcpCntl3 = 0;
759 phba->fc4ControlRequests++; 1134 phba->fc4ControlRequests++;
760 } 1135 }
761 1136 if (phba->sli_rev == 3)
1137 lpfc_fcpcmd_to_iocb(iocb_cmd->unsli3.fcp_ext.icd, fcp_cmnd);
762 /* 1138 /*
763 * Finish initializing those IOCB fields that are independent 1139 * Finish initializing those IOCB fields that are independent
764 * of the scsi_cmnd request_buffer 1140 * of the scsi_cmnd request_buffer
@@ -798,11 +1174,13 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport,
798 piocb = &piocbq->iocb; 1174 piocb = &piocbq->iocb;
799 1175
800 fcp_cmnd = lpfc_cmd->fcp_cmnd; 1176 fcp_cmnd = lpfc_cmd->fcp_cmnd;
801 int_to_scsilun(lun, &lpfc_cmd->fcp_cmnd->fcp_lun); 1177 /* Clear out any old data in the FCP command area */
1178 memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd));
1179 int_to_scsilun(lun, &fcp_cmnd->fcp_lun);
802 fcp_cmnd->fcpCntl2 = task_mgmt_cmd; 1180 fcp_cmnd->fcpCntl2 = task_mgmt_cmd;
803 1181 if (vport->phba->sli_rev == 3)
1182 lpfc_fcpcmd_to_iocb(piocb->unsli3.fcp_ext.icd, fcp_cmnd);
804 piocb->ulpCommand = CMD_FCP_ICMND64_CR; 1183 piocb->ulpCommand = CMD_FCP_ICMND64_CR;
805
806 piocb->ulpContext = ndlp->nlp_rpi; 1184 piocb->ulpContext = ndlp->nlp_rpi;
807 if (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) { 1185 if (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) {
808 piocb->ulpFCP2Rcvy = 1; 1186 piocb->ulpFCP2Rcvy = 1;
@@ -967,9 +1345,12 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
967 * transport is still transitioning. 1345 * transport is still transitioning.
968 */ 1346 */
969 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) { 1347 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
970 cmnd->result = ScsiResult(DID_BUS_BUSY, 0); 1348 cmnd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, 0);
971 goto out_fail_command; 1349 goto out_fail_command;
972 } 1350 }
1351 if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth)
1352 goto out_host_busy;
1353
973 lpfc_cmd = lpfc_get_scsi_buf(phba); 1354 lpfc_cmd = lpfc_get_scsi_buf(phba);
974 if (lpfc_cmd == NULL) { 1355 if (lpfc_cmd == NULL) {
975 lpfc_adjust_queue_depth(phba); 1356 lpfc_adjust_queue_depth(phba);
@@ -980,6 +1361,7 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
980 goto out_host_busy; 1361 goto out_host_busy;
981 } 1362 }
982 1363
1364 lpfc_cmd->start_time = jiffies;
983 /* 1365 /*
984 * Store the midlayer's command structure for the completion phase 1366 * Store the midlayer's command structure for the completion phase
985 * and complete the command initialization. 1367 * and complete the command initialization.
@@ -987,6 +1369,7 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
987 lpfc_cmd->pCmd = cmnd; 1369 lpfc_cmd->pCmd = cmnd;
988 lpfc_cmd->rdata = rdata; 1370 lpfc_cmd->rdata = rdata;
989 lpfc_cmd->timeout = 0; 1371 lpfc_cmd->timeout = 0;
1372 lpfc_cmd->start_time = jiffies;
990 cmnd->host_scribble = (unsigned char *)lpfc_cmd; 1373 cmnd->host_scribble = (unsigned char *)lpfc_cmd;
991 cmnd->scsi_done = done; 1374 cmnd->scsi_done = done;
992 1375
@@ -996,6 +1379,7 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
996 1379
997 lpfc_scsi_prep_cmnd(vport, lpfc_cmd, ndlp); 1380 lpfc_scsi_prep_cmnd(vport, lpfc_cmd, ndlp);
998 1381
1382 atomic_inc(&ndlp->cmd_pending);
999 err = lpfc_sli_issue_iocb(phba, &phba->sli.ring[psli->fcp_ring], 1383 err = lpfc_sli_issue_iocb(phba, &phba->sli.ring[psli->fcp_ring],
1000 &lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB); 1384 &lpfc_cmd->cur_iocbq, SLI_IOCB_RET_IOCB);
1001 if (err) 1385 if (err)
@@ -1010,6 +1394,7 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
1010 return 0; 1394 return 0;
1011 1395
1012 out_host_busy_free_buf: 1396 out_host_busy_free_buf:
1397 atomic_dec(&ndlp->cmd_pending);
1013 lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd); 1398 lpfc_scsi_unprep_dma_buf(phba, lpfc_cmd);
1014 lpfc_release_scsi_buf(phba, lpfc_cmd); 1399 lpfc_release_scsi_buf(phba, lpfc_cmd);
1015 out_host_busy: 1400 out_host_busy:
@@ -1145,6 +1530,7 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
1145 int ret = SUCCESS; 1530 int ret = SUCCESS;
1146 int status; 1531 int status;
1147 int cnt; 1532 int cnt;
1533 struct lpfc_scsi_event_header scsi_event;
1148 1534
1149 lpfc_block_error_handler(cmnd); 1535 lpfc_block_error_handler(cmnd);
1150 /* 1536 /*
@@ -1163,6 +1549,19 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
1163 break; 1549 break;
1164 pnode = rdata->pnode; 1550 pnode = rdata->pnode;
1165 } 1551 }
1552
1553 scsi_event.event_type = FC_REG_SCSI_EVENT;
1554 scsi_event.subcategory = LPFC_EVENT_TGTRESET;
1555 scsi_event.lun = 0;
1556 memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name));
1557 memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name));
1558
1559 fc_host_post_vendor_event(shost,
1560 fc_get_event_number(),
1561 sizeof(scsi_event),
1562 (char *)&scsi_event,
1563 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1564
1166 if (!rdata || pnode->nlp_state != NLP_STE_MAPPED_NODE) { 1565 if (!rdata || pnode->nlp_state != NLP_STE_MAPPED_NODE) {
1167 lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP, 1566 lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
1168 "0721 LUN Reset rport " 1567 "0721 LUN Reset rport "
@@ -1242,10 +1641,23 @@ lpfc_bus_reset_handler(struct scsi_cmnd *cmnd)
1242 struct lpfc_hba *phba = vport->phba; 1641 struct lpfc_hba *phba = vport->phba;
1243 struct lpfc_nodelist *ndlp = NULL; 1642 struct lpfc_nodelist *ndlp = NULL;
1244 int match; 1643 int match;
1245 int ret = SUCCESS, status, i; 1644 int ret = SUCCESS, status = SUCCESS, i;
1246 int cnt; 1645 int cnt;
1247 struct lpfc_scsi_buf * lpfc_cmd; 1646 struct lpfc_scsi_buf * lpfc_cmd;
1248 unsigned long later; 1647 unsigned long later;
1648 struct lpfc_scsi_event_header scsi_event;
1649
1650 scsi_event.event_type = FC_REG_SCSI_EVENT;
1651 scsi_event.subcategory = LPFC_EVENT_BUSRESET;
1652 scsi_event.lun = 0;
1653 memcpy(scsi_event.wwpn, &vport->fc_portname, sizeof(struct lpfc_name));
1654 memcpy(scsi_event.wwnn, &vport->fc_nodename, sizeof(struct lpfc_name));
1655
1656 fc_host_post_vendor_event(shost,
1657 fc_get_event_number(),
1658 sizeof(scsi_event),
1659 (char *)&scsi_event,
1660 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1249 1661
1250 lpfc_block_error_handler(cmnd); 1662 lpfc_block_error_handler(cmnd);
1251 /* 1663 /*
diff --git a/drivers/scsi/lpfc/lpfc_scsi.h b/drivers/scsi/lpfc/lpfc_scsi.h
index daba92374985..437f182e2322 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.h
+++ b/drivers/scsi/lpfc/lpfc_scsi.h
@@ -107,6 +107,10 @@ struct fcp_cmnd {
107 107
108}; 108};
109 109
110struct lpfc_scsicmd_bkt {
111 uint32_t cmd_count;
112};
113
110struct lpfc_scsi_buf { 114struct lpfc_scsi_buf {
111 struct list_head list; 115 struct list_head list;
112 struct scsi_cmnd *pCmd; 116 struct scsi_cmnd *pCmd;
@@ -139,6 +143,7 @@ struct lpfc_scsi_buf {
139 */ 143 */
140 struct lpfc_iocbq cur_iocbq; 144 struct lpfc_iocbq cur_iocbq;
141 wait_queue_head_t *waitq; 145 wait_queue_head_t *waitq;
146 unsigned long start_time;
142}; 147};
143 148
144#define LPFC_SCSI_DMA_EXT_SIZE 264 149#define LPFC_SCSI_DMA_EXT_SIZE 264
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 50fe07646738..8ab5babdeebc 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -32,6 +32,7 @@
32 32
33#include "lpfc_hw.h" 33#include "lpfc_hw.h"
34#include "lpfc_sli.h" 34#include "lpfc_sli.h"
35#include "lpfc_nl.h"
35#include "lpfc_disc.h" 36#include "lpfc_disc.h"
36#include "lpfc_scsi.h" 37#include "lpfc_scsi.h"
37#include "lpfc.h" 38#include "lpfc.h"
@@ -66,10 +67,16 @@ typedef enum _lpfc_iocb_type {
66 LPFC_ABORT_IOCB 67 LPFC_ABORT_IOCB
67} lpfc_iocb_type; 68} lpfc_iocb_type;
68 69
69 /* SLI-2/SLI-3 provide different sized iocbs. Given a pointer 70/**
70 * to the start of the ring, and the slot number of the 71 * lpfc_cmd_iocb: Get next command iocb entry in the ring.
71 * desired iocb entry, calc a pointer to that entry. 72 * @phba: Pointer to HBA context object.
72 */ 73 * @pring: Pointer to driver SLI ring object.
74 *
75 * This function returns pointer to next command iocb entry
76 * in the command ring. The caller must hold hbalock to prevent
77 * other threads consume the next command iocb.
78 * SLI-2/SLI-3 provide different sized iocbs.
79 **/
73static inline IOCB_t * 80static inline IOCB_t *
74lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) 81lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
75{ 82{
@@ -77,6 +84,16 @@ lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
77 pring->cmdidx * phba->iocb_cmd_size); 84 pring->cmdidx * phba->iocb_cmd_size);
78} 85}
79 86
87/**
88 * lpfc_resp_iocb: Get next response iocb entry in the ring.
89 * @phba: Pointer to HBA context object.
90 * @pring: Pointer to driver SLI ring object.
91 *
92 * This function returns pointer to next response iocb entry
93 * in the response ring. The caller must hold hbalock to make sure
94 * that no other thread consume the next response iocb.
95 * SLI-2/SLI-3 provide different sized iocbs.
96 **/
80static inline IOCB_t * 97static inline IOCB_t *
81lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) 98lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
82{ 99{
@@ -84,6 +101,15 @@ lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
84 pring->rspidx * phba->iocb_rsp_size); 101 pring->rspidx * phba->iocb_rsp_size);
85} 102}
86 103
104/**
105 * __lpfc_sli_get_iocbq: Allocates an iocb object from iocb pool.
106 * @phba: Pointer to HBA context object.
107 *
108 * This function is called with hbalock held. This function
109 * allocates a new driver iocb object from the iocb pool. If the
110 * allocation is successful, it returns pointer to the newly
111 * allocated iocb object else it returns NULL.
112 **/
87static struct lpfc_iocbq * 113static struct lpfc_iocbq *
88__lpfc_sli_get_iocbq(struct lpfc_hba *phba) 114__lpfc_sli_get_iocbq(struct lpfc_hba *phba)
89{ 115{
@@ -94,6 +120,15 @@ __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
94 return iocbq; 120 return iocbq;
95} 121}
96 122
123/**
124 * lpfc_sli_get_iocbq: Allocates an iocb object from iocb pool.
125 * @phba: Pointer to HBA context object.
126 *
127 * This function is called with no lock held. This function
128 * allocates a new driver iocb object from the iocb pool. If the
129 * allocation is successful, it returns pointer to the newly
130 * allocated iocb object else it returns NULL.
131 **/
97struct lpfc_iocbq * 132struct lpfc_iocbq *
98lpfc_sli_get_iocbq(struct lpfc_hba *phba) 133lpfc_sli_get_iocbq(struct lpfc_hba *phba)
99{ 134{
@@ -106,6 +141,16 @@ lpfc_sli_get_iocbq(struct lpfc_hba *phba)
106 return iocbq; 141 return iocbq;
107} 142}
108 143
144/**
145 * __lpfc_sli_release_iocbq: Release iocb to the iocb pool.
146 * @phba: Pointer to HBA context object.
147 * @iocbq: Pointer to driver iocb object.
148 *
149 * This function is called with hbalock held to release driver
150 * iocb object to the iocb pool. The iotag in the iocb object
151 * does not change for each use of the iocb object. This function
152 * clears all other fields of the iocb object when it is freed.
153 **/
109static void 154static void
110__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) 155__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
111{ 156{
@@ -118,6 +163,14 @@ __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
118 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); 163 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
119} 164}
120 165
166/**
167 * lpfc_sli_release_iocbq: Release iocb to the iocb pool.
168 * @phba: Pointer to HBA context object.
169 * @iocbq: Pointer to driver iocb object.
170 *
171 * This function is called with no lock held to release the iocb to
172 * iocb pool.
173 **/
121void 174void
122lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) 175lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
123{ 176{
@@ -131,10 +184,21 @@ lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
131 spin_unlock_irqrestore(&phba->hbalock, iflags); 184 spin_unlock_irqrestore(&phba->hbalock, iflags);
132} 185}
133 186
134/* 187/**
135 * Translate the iocb command to an iocb command type used to decide the final 188 * lpfc_sli_iocb_cmd_type: Get the iocb type.
136 * disposition of each completed IOCB. 189 * @iocb_cmnd : iocb command code.
137 */ 190 *
191 * This function is called by ring event handler function to get the iocb type.
192 * This function translates the iocb command to an iocb command type used to
193 * decide the final disposition of each completed IOCB.
194 * The function returns
195 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
196 * LPFC_SOL_IOCB if it is a solicited iocb completion
197 * LPFC_ABORT_IOCB if it is an abort iocb
198 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
199 *
200 * The caller is not required to hold any lock.
201 **/
138static lpfc_iocb_type 202static lpfc_iocb_type
139lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) 203lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
140{ 204{
@@ -230,6 +294,17 @@ lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
230 return type; 294 return type;
231} 295}
232 296
297/**
298 * lpfc_sli_ring_map: Issue config_ring mbox for all rings.
299 * @phba: Pointer to HBA context object.
300 *
301 * This function is called from SLI initialization code
302 * to configure every ring of the HBA's SLI interface. The
303 * caller is not required to hold any lock. This function issues
304 * a config_ring mailbox command for each ring.
305 * This function returns zero if successful else returns a negative
306 * error code.
307 **/
233static int 308static int
234lpfc_sli_ring_map(struct lpfc_hba *phba) 309lpfc_sli_ring_map(struct lpfc_hba *phba)
235{ 310{
@@ -262,6 +337,18 @@ lpfc_sli_ring_map(struct lpfc_hba *phba)
262 return ret; 337 return ret;
263} 338}
264 339
340/**
341 * lpfc_sli_ringtxcmpl_put: Adds new iocb to the txcmplq.
342 * @phba: Pointer to HBA context object.
343 * @pring: Pointer to driver SLI ring object.
344 * @piocb: Pointer to the driver iocb object.
345 *
346 * This function is called with hbalock held. The function adds the
347 * new iocb to txcmplq of the given ring. This function always returns
348 * 0. If this function is called for ELS ring, this function checks if
349 * there is a vport associated with the ELS command. This function also
350 * starts els_tmofunc timer if this is an ELS command.
351 **/
265static int 352static int
266lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 353lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
267 struct lpfc_iocbq *piocb) 354 struct lpfc_iocbq *piocb)
@@ -282,6 +369,16 @@ lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
282 return 0; 369 return 0;
283} 370}
284 371
372/**
373 * lpfc_sli_ringtx_get: Get first element of the txq.
374 * @phba: Pointer to HBA context object.
375 * @pring: Pointer to driver SLI ring object.
376 *
377 * This function is called with hbalock held to get next
378 * iocb in txq of the given ring. If there is any iocb in
379 * the txq, the function returns first iocb in the list after
380 * removing the iocb from the list, else it returns NULL.
381 **/
285static struct lpfc_iocbq * 382static struct lpfc_iocbq *
286lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) 383lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
287{ 384{
@@ -293,14 +390,25 @@ lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
293 return cmd_iocb; 390 return cmd_iocb;
294} 391}
295 392
393/**
394 * lpfc_sli_next_iocb_slot: Get next iocb slot in the ring.
395 * @phba: Pointer to HBA context object.
396 * @pring: Pointer to driver SLI ring object.
397 *
398 * This function is called with hbalock held and the caller must post the
399 * iocb without releasing the lock. If the caller releases the lock,
400 * iocb slot returned by the function is not guaranteed to be available.
401 * The function returns pointer to the next available iocb slot if there
402 * is available slot in the ring, else it returns NULL.
403 * If the get index of the ring is ahead of the put index, the function
404 * will post an error attention event to the worker thread to take the
405 * HBA to offline state.
406 **/
296static IOCB_t * 407static IOCB_t *
297lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) 408lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
298{ 409{
299 struct lpfc_pgp *pgp = (phba->sli_rev == 3) ? 410 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
300 &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
301 &phba->slim2p->mbx.us.s2.port[pring->ringno];
302 uint32_t max_cmd_idx = pring->numCiocb; 411 uint32_t max_cmd_idx = pring->numCiocb;
303
304 if ((pring->next_cmdidx == pring->cmdidx) && 412 if ((pring->next_cmdidx == pring->cmdidx) &&
305 (++pring->next_cmdidx >= max_cmd_idx)) 413 (++pring->next_cmdidx >= max_cmd_idx))
306 pring->next_cmdidx = 0; 414 pring->next_cmdidx = 0;
@@ -336,6 +444,18 @@ lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
336 return lpfc_cmd_iocb(phba, pring); 444 return lpfc_cmd_iocb(phba, pring);
337} 445}
338 446
447/**
448 * lpfc_sli_next_iotag: Get an iotag for the iocb.
449 * @phba: Pointer to HBA context object.
450 * @iocbq: Pointer to driver iocb object.
451 *
452 * This function gets an iotag for the iocb. If there is no unused iotag and
453 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
454 * array and assigns a new iotag.
455 * The function returns the allocated iotag if successful, else returns zero.
456 * Zero is not a valid iotag.
457 * The caller is not required to hold any lock.
458 **/
339uint16_t 459uint16_t
340lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq) 460lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
341{ 461{
@@ -399,6 +519,20 @@ lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
399 return 0; 519 return 0;
400} 520}
401 521
522/**
523 * lpfc_sli_submit_iocb: Submit an iocb to the firmware.
524 * @phba: Pointer to HBA context object.
525 * @pring: Pointer to driver SLI ring object.
526 * @iocb: Pointer to iocb slot in the ring.
527 * @nextiocb: Pointer to driver iocb object which need to be
528 * posted to firmware.
529 *
530 * This function is called with hbalock held to post a new iocb to
531 * the firmware. This function copies the new iocb to ring iocb slot and
532 * updates the ring pointers. It adds the new iocb to txcmplq if there is
533 * a completion call back for this iocb else the function will free the
534 * iocb object.
535 **/
402static void 536static void
403lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 537lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
404 IOCB_t *iocb, struct lpfc_iocbq *nextiocb) 538 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
@@ -441,6 +575,18 @@ lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
441 writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx); 575 writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
442} 576}
443 577
578/**
579 * lpfc_sli_update_full_ring: Update the chip attention register.
580 * @phba: Pointer to HBA context object.
581 * @pring: Pointer to driver SLI ring object.
582 *
583 * The caller is not required to hold any lock for calling this function.
584 * This function updates the chip attention bits for the ring to inform firmware
585 * that there are pending work to be done for this ring and requests an
586 * interrupt when there is space available in the ring. This function is
587 * called when the driver is unable to post more iocbs to the ring due
588 * to unavailability of space in the ring.
589 **/
444static void 590static void
445lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) 591lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
446{ 592{
@@ -460,6 +606,15 @@ lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
460 pring->stats.iocb_cmd_full++; 606 pring->stats.iocb_cmd_full++;
461} 607}
462 608
609/**
610 * lpfc_sli_update_ring: Update chip attention register.
611 * @phba: Pointer to HBA context object.
612 * @pring: Pointer to driver SLI ring object.
613 *
614 * This function updates the chip attention register bit for the
615 * given ring to inform HBA that there is more work to be done
616 * in this ring. The caller is not required to hold any lock.
617 **/
463static void 618static void
464lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) 619lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
465{ 620{
@@ -468,11 +623,22 @@ lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
468 /* 623 /*
469 * Tell the HBA that there is work to do in this ring. 624 * Tell the HBA that there is work to do in this ring.
470 */ 625 */
471 wmb(); 626 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
472 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); 627 wmb();
473 readl(phba->CAregaddr); /* flush */ 628 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
629 readl(phba->CAregaddr); /* flush */
630 }
474} 631}
475 632
633/**
634 * lpfc_sli_resume_iocb: Process iocbs in the txq.
635 * @phba: Pointer to HBA context object.
636 * @pring: Pointer to driver SLI ring object.
637 *
638 * This function is called with hbalock held to post pending iocbs
639 * in the txq to the firmware. This function is called when driver
640 * detects space available in the ring.
641 **/
476static void 642static void
477lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) 643lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
478{ 644{
@@ -504,6 +670,16 @@ lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
504 return; 670 return;
505} 671}
506 672
673/**
674 * lpfc_sli_next_hbq_slot: Get next hbq entry for the HBQ.
675 * @phba: Pointer to HBA context object.
676 * @hbqno: HBQ number.
677 *
678 * This function is called with hbalock held to get the next
679 * available slot for the given HBQ. If there is free slot
680 * available for the HBQ it will return pointer to the next available
681 * HBQ entry else it will return NULL.
682 **/
507static struct lpfc_hbq_entry * 683static struct lpfc_hbq_entry *
508lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno) 684lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
509{ 685{
@@ -539,6 +715,15 @@ lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
539 hbqp->hbqPutIdx; 715 hbqp->hbqPutIdx;
540} 716}
541 717
718/**
719 * lpfc_sli_hbqbuf_free_all: Free all the hbq buffers.
720 * @phba: Pointer to HBA context object.
721 *
722 * This function is called with no lock held to free all the
723 * hbq buffers while uninitializing the SLI interface. It also
724 * frees the HBQ buffers returned by the firmware but not yet
725 * processed by the upper layers.
726 **/
542void 727void
543lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba) 728lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
544{ 729{
@@ -584,6 +769,18 @@ lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
584 spin_unlock_irqrestore(&phba->hbalock, flags); 769 spin_unlock_irqrestore(&phba->hbalock, flags);
585} 770}
586 771
772/**
773 * lpfc_sli_hbq_to_firmware: Post the hbq buffer to firmware.
774 * @phba: Pointer to HBA context object.
775 * @hbqno: HBQ number.
776 * @hbq_buf: Pointer to HBQ buffer.
777 *
778 * This function is called with the hbalock held to post a
779 * hbq buffer to the firmware. If the function finds an empty
780 * slot in the HBQ, it will post the buffer. The function will return
781 * pointer to the hbq entry if it successfully post the buffer
782 * else it will return NULL.
783 **/
587static struct lpfc_hbq_entry * 784static struct lpfc_hbq_entry *
588lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno, 785lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
589 struct hbq_dmabuf *hbq_buf) 786 struct hbq_dmabuf *hbq_buf)
@@ -612,6 +809,7 @@ lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
612 return hbqe; 809 return hbqe;
613} 810}
614 811
812/* HBQ for ELS and CT traffic. */
615static struct lpfc_hbq_init lpfc_els_hbq = { 813static struct lpfc_hbq_init lpfc_els_hbq = {
616 .rn = 1, 814 .rn = 1,
617 .entry_count = 200, 815 .entry_count = 200,
@@ -623,6 +821,7 @@ static struct lpfc_hbq_init lpfc_els_hbq = {
623 .add_count = 5, 821 .add_count = 5,
624}; 822};
625 823
824/* HBQ for the extra ring if needed */
626static struct lpfc_hbq_init lpfc_extra_hbq = { 825static struct lpfc_hbq_init lpfc_extra_hbq = {
627 .rn = 1, 826 .rn = 1,
628 .entry_count = 200, 827 .entry_count = 200,
@@ -634,51 +833,81 @@ static struct lpfc_hbq_init lpfc_extra_hbq = {
634 .add_count = 5, 833 .add_count = 5,
635}; 834};
636 835
836/* Array of HBQs */
637struct lpfc_hbq_init *lpfc_hbq_defs[] = { 837struct lpfc_hbq_init *lpfc_hbq_defs[] = {
638 &lpfc_els_hbq, 838 &lpfc_els_hbq,
639 &lpfc_extra_hbq, 839 &lpfc_extra_hbq,
640}; 840};
641 841
842/**
843 * lpfc_sli_hbqbuf_fill_hbqs: Post more hbq buffers to HBQ.
844 * @phba: Pointer to HBA context object.
845 * @hbqno: HBQ number.
846 * @count: Number of HBQ buffers to be posted.
847 *
848 * This function is called with no lock held to post more hbq buffers to the
849 * given HBQ. The function returns the number of HBQ buffers successfully
850 * posted.
851 **/
642static int 852static int
643lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count) 853lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
644{ 854{
645 uint32_t i, start, end; 855 uint32_t i, posted = 0;
646 unsigned long flags; 856 unsigned long flags;
647 struct hbq_dmabuf *hbq_buffer; 857 struct hbq_dmabuf *hbq_buffer;
648 858 LIST_HEAD(hbq_buf_list);
649 if (!phba->hbqs[hbqno].hbq_alloc_buffer) 859 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
650 return 0; 860 return 0;
651 861
652 start = phba->hbqs[hbqno].buffer_count; 862 if ((phba->hbqs[hbqno].buffer_count + count) >
653 end = count + start; 863 lpfc_hbq_defs[hbqno]->entry_count)
654 if (end > lpfc_hbq_defs[hbqno]->entry_count) 864 count = lpfc_hbq_defs[hbqno]->entry_count -
655 end = lpfc_hbq_defs[hbqno]->entry_count; 865 phba->hbqs[hbqno].buffer_count;
656 866 if (!count)
867 return 0;
868 /* Allocate HBQ entries */
869 for (i = 0; i < count; i++) {
870 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
871 if (!hbq_buffer)
872 break;
873 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
874 }
657 /* Check whether HBQ is still in use */ 875 /* Check whether HBQ is still in use */
658 spin_lock_irqsave(&phba->hbalock, flags); 876 spin_lock_irqsave(&phba->hbalock, flags);
659 if (!phba->hbq_in_use) 877 if (!phba->hbq_in_use)
660 goto out; 878 goto err;
661 879 while (!list_empty(&hbq_buf_list)) {
662 /* Populate HBQ entries */ 880 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
663 for (i = start; i < end; i++) { 881 dbuf.list);
664 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba); 882 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
665 if (!hbq_buffer) 883 (hbqno << 16));
666 goto err; 884 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
667 hbq_buffer->tag = (i | (hbqno << 16));
668 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
669 phba->hbqs[hbqno].buffer_count++; 885 phba->hbqs[hbqno].buffer_count++;
670 else 886 posted++;
887 } else
671 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer); 888 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
672 } 889 }
673
674 out:
675 spin_unlock_irqrestore(&phba->hbalock, flags); 890 spin_unlock_irqrestore(&phba->hbalock, flags);
676 return 0; 891 return posted;
677 err: 892err:
678 spin_unlock_irqrestore(&phba->hbalock, flags); 893 spin_unlock_irqrestore(&phba->hbalock, flags);
679 return 1; 894 while (!list_empty(&hbq_buf_list)) {
895 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
896 dbuf.list);
897 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
898 }
899 return 0;
680} 900}
681 901
902/**
903 * lpfc_sli_hbqbuf_add_hbqs: Post more HBQ buffers to firmware.
904 * @phba: Pointer to HBA context object.
905 * @qno: HBQ number.
906 *
907 * This function posts more buffers to the HBQ. This function
908 * is called with no lock held. The function returns the number of HBQ entries
909 * successfully allocated.
910 **/
682int 911int
683lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno) 912lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
684{ 913{
@@ -686,6 +915,15 @@ lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
686 lpfc_hbq_defs[qno]->add_count)); 915 lpfc_hbq_defs[qno]->add_count));
687} 916}
688 917
918/**
919 * lpfc_sli_hbqbuf_init_hbqs: Post initial buffers to the HBQ.
920 * @phba: Pointer to HBA context object.
921 * @qno: HBQ queue number.
922 *
923 * This function is called from SLI initialization code path with
924 * no lock held to post initial HBQ buffers to firmware. The
925 * function returns the number of HBQ entries successfully allocated.
926 **/
689static int 927static int
690lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno) 928lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
691{ 929{
@@ -693,6 +931,16 @@ lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
693 lpfc_hbq_defs[qno]->init_count)); 931 lpfc_hbq_defs[qno]->init_count));
694} 932}
695 933
934/**
935 * lpfc_sli_hbqbuf_find: Find the hbq buffer associated with a tag.
936 * @phba: Pointer to HBA context object.
937 * @tag: Tag of the hbq buffer.
938 *
939 * This function is called with hbalock held. This function searches
940 * for the hbq buffer associated with the given tag in the hbq buffer
941 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
942 * it returns NULL.
943 **/
696static struct hbq_dmabuf * 944static struct hbq_dmabuf *
697lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag) 945lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
698{ 946{
@@ -716,6 +964,15 @@ lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
716 return NULL; 964 return NULL;
717} 965}
718 966
967/**
968 * lpfc_sli_free_hbq: Give back the hbq buffer to firmware.
969 * @phba: Pointer to HBA context object.
970 * @hbq_buffer: Pointer to HBQ buffer.
971 *
972 * This function is called with hbalock. This function gives back
973 * the hbq buffer to firmware. If the HBQ does not have space to
974 * post the buffer, it will free the buffer.
975 **/
719void 976void
720lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer) 977lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
721{ 978{
@@ -729,6 +986,15 @@ lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
729 } 986 }
730} 987}
731 988
989/**
990 * lpfc_sli_chk_mbx_command: Check if the mailbox is a legitimate mailbox.
991 * @mbxCommand: mailbox command code.
992 *
993 * This function is called by the mailbox event handler function to verify
994 * that the completed mailbox command is a legitimate mailbox command. If the
995 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
996 * and the mailbox event handler will take the HBA offline.
997 **/
732static int 998static int
733lpfc_sli_chk_mbx_command(uint8_t mbxCommand) 999lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
734{ 1000{
@@ -785,6 +1051,8 @@ lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
785 case MBX_REG_VPI: 1051 case MBX_REG_VPI:
786 case MBX_UNREG_VPI: 1052 case MBX_UNREG_VPI:
787 case MBX_HEARTBEAT: 1053 case MBX_HEARTBEAT:
1054 case MBX_PORT_CAPABILITIES:
1055 case MBX_PORT_IOV_CONTROL:
788 ret = mbxCommand; 1056 ret = mbxCommand;
789 break; 1057 break;
790 default: 1058 default:
@@ -793,6 +1061,19 @@ lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
793 } 1061 }
794 return ret; 1062 return ret;
795} 1063}
1064
1065/**
1066 * lpfc_sli_wake_mbox_wait: Completion handler for mbox issued from
1067 * lpfc_sli_issue_mbox_wait.
1068 * @phba: Pointer to HBA context object.
1069 * @pmboxq: Pointer to mailbox command.
1070 *
1071 * This is completion handler function for mailbox commands issued from
1072 * lpfc_sli_issue_mbox_wait function. This function is called by the
1073 * mailbox event handler function with no lock held. This function
1074 * will wake up thread waiting on the wait queue pointed by context1
1075 * of the mailbox.
1076 **/
796static void 1077static void
797lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) 1078lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
798{ 1079{
@@ -812,6 +1093,17 @@ lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
812 return; 1093 return;
813} 1094}
814 1095
1096
1097/**
1098 * lpfc_sli_def_mbox_cmpl: Default mailbox completion handler.
1099 * @phba: Pointer to HBA context object.
1100 * @pmb: Pointer to mailbox object.
1101 *
1102 * This function is the default mailbox completion handler. It
1103 * frees the memory resources associated with the completed mailbox
1104 * command. If the completed command is a REG_LOGIN mailbox command,
1105 * this function will issue a UREG_LOGIN to re-claim the RPI.
1106 **/
815void 1107void
816lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) 1108lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
817{ 1109{
@@ -846,6 +1138,19 @@ lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
846 return; 1138 return;
847} 1139}
848 1140
1141/**
1142 * lpfc_sli_handle_mb_event: Handle mailbox completions from firmware.
1143 * @phba: Pointer to HBA context object.
1144 *
1145 * This function is called with no lock held. This function processes all
1146 * the completed mailbox commands and gives it to upper layers. The interrupt
1147 * service routine processes mailbox completion interrupt and adds completed
1148 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
1149 * Worker thread call lpfc_sli_handle_mb_event, which will return the
1150 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
1151 * function returns the mailbox commands to the upper layer by calling the
1152 * completion handler function of each mailbox.
1153 **/
849int 1154int
850lpfc_sli_handle_mb_event(struct lpfc_hba *phba) 1155lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
851{ 1156{
@@ -953,6 +1258,18 @@ lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
953 return 0; 1258 return 0;
954} 1259}
955 1260
1261/**
1262 * lpfc_sli_replace_hbqbuff: Replace the HBQ buffer with a new buffer.
1263 * @phba: Pointer to HBA context object.
1264 * @tag: Tag for the HBQ buffer.
1265 *
1266 * This function is called from unsolicited event handler code path to get the
1267 * HBQ buffer associated with an unsolicited iocb. This function is called with
1268 * no lock held. It returns the buffer associated with the given tag and posts
1269 * another buffer to the firmware. Note that the new buffer must be allocated
1270 * before taking the hbalock and that the hba lock must be held until it is
1271 * finished with the hbq entry swap.
1272 **/
956static struct lpfc_dmabuf * 1273static struct lpfc_dmabuf *
957lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag) 1274lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag)
958{ 1275{
@@ -962,22 +1279,28 @@ lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag)
962 dma_addr_t phys; /* mapped address */ 1279 dma_addr_t phys; /* mapped address */
963 unsigned long flags; 1280 unsigned long flags;
964 1281
1282 hbqno = tag >> 16;
1283 new_hbq_entry = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
965 /* Check whether HBQ is still in use */ 1284 /* Check whether HBQ is still in use */
966 spin_lock_irqsave(&phba->hbalock, flags); 1285 spin_lock_irqsave(&phba->hbalock, flags);
967 if (!phba->hbq_in_use) { 1286 if (!phba->hbq_in_use) {
1287 if (new_hbq_entry)
1288 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1289 new_hbq_entry);
968 spin_unlock_irqrestore(&phba->hbalock, flags); 1290 spin_unlock_irqrestore(&phba->hbalock, flags);
969 return NULL; 1291 return NULL;
970 } 1292 }
971 1293
972 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag); 1294 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
973 if (hbq_entry == NULL) { 1295 if (hbq_entry == NULL) {
1296 if (new_hbq_entry)
1297 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1298 new_hbq_entry);
974 spin_unlock_irqrestore(&phba->hbalock, flags); 1299 spin_unlock_irqrestore(&phba->hbalock, flags);
975 return NULL; 1300 return NULL;
976 } 1301 }
977 list_del(&hbq_entry->dbuf.list); 1302 list_del(&hbq_entry->dbuf.list);
978 1303
979 hbqno = tag >> 16;
980 new_hbq_entry = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
981 if (new_hbq_entry == NULL) { 1304 if (new_hbq_entry == NULL) {
982 list_add_tail(&hbq_entry->dbuf.list, &phba->hbqbuf_in_list); 1305 list_add_tail(&hbq_entry->dbuf.list, &phba->hbqbuf_in_list);
983 spin_unlock_irqrestore(&phba->hbalock, flags); 1306 spin_unlock_irqrestore(&phba->hbalock, flags);
@@ -997,6 +1320,18 @@ lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag)
997 return &new_hbq_entry->dbuf; 1320 return &new_hbq_entry->dbuf;
998} 1321}
999 1322
1323/**
1324 * lpfc_sli_get_buff: Get the buffer associated with the buffer tag.
1325 * @phba: Pointer to HBA context object.
1326 * @pring: Pointer to driver SLI ring object.
1327 * @tag: buffer tag.
1328 *
1329 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
1330 * is set in the tag the buffer is posted for a particular exchange,
1331 * the function will return the buffer without replacing the buffer.
1332 * If the buffer is for unsolicited ELS or CT traffic, this function
1333 * returns the buffer and also posts another buffer to the firmware.
1334 **/
1000static struct lpfc_dmabuf * 1335static struct lpfc_dmabuf *
1001lpfc_sli_get_buff(struct lpfc_hba *phba, 1336lpfc_sli_get_buff(struct lpfc_hba *phba,
1002 struct lpfc_sli_ring *pring, 1337 struct lpfc_sli_ring *pring,
@@ -1008,6 +1343,21 @@ lpfc_sli_get_buff(struct lpfc_hba *phba,
1008 return lpfc_sli_replace_hbqbuff(phba, tag); 1343 return lpfc_sli_replace_hbqbuff(phba, tag);
1009} 1344}
1010 1345
1346
1347/**
1348 * lpfc_sli_process_unsol_iocb: Unsolicited iocb handler.
1349 * @phba: Pointer to HBA context object.
1350 * @pring: Pointer to driver SLI ring object.
1351 * @saveq: Pointer to the unsolicited iocb.
1352 *
1353 * This function is called with no lock held by the ring event handler
1354 * when there is an unsolicited iocb posted to the response ring by the
1355 * firmware. This function gets the buffer associated with the iocbs
1356 * and calls the event handler for the ring. This function handles both
1357 * qring buffers and hbq buffers.
1358 * When the function returns 1 the caller can free the iocb object otherwise
1359 * upper layer functions will free the iocb objects.
1360 **/
1011static int 1361static int
1012lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 1362lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1013 struct lpfc_iocbq *saveq) 1363 struct lpfc_iocbq *saveq)
@@ -1192,6 +1542,18 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1192 return 1; 1542 return 1;
1193} 1543}
1194 1544
1545/**
1546 * lpfc_sli_iocbq_lookup: Find command iocb for the given response iocb.
1547 * @phba: Pointer to HBA context object.
1548 * @pring: Pointer to driver SLI ring object.
1549 * @prspiocb: Pointer to response iocb object.
1550 *
1551 * This function looks up the iocb_lookup table to get the command iocb
1552 * corresponding to the given response iocb using the iotag of the
1553 * response iocb. This function is called with the hbalock held.
1554 * This function returns the command iocb object if it finds the command
1555 * iocb else returns NULL.
1556 **/
1195static struct lpfc_iocbq * 1557static struct lpfc_iocbq *
1196lpfc_sli_iocbq_lookup(struct lpfc_hba *phba, 1558lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
1197 struct lpfc_sli_ring *pring, 1559 struct lpfc_sli_ring *pring,
@@ -1217,6 +1579,23 @@ lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
1217 return NULL; 1579 return NULL;
1218} 1580}
1219 1581
1582/**
1583 * lpfc_sli_process_sol_iocb: process solicited iocb completion.
1584 * @phba: Pointer to HBA context object.
1585 * @pring: Pointer to driver SLI ring object.
1586 * @saveq: Pointer to the response iocb to be processed.
1587 *
1588 * This function is called by the ring event handler for non-fcp
1589 * rings when there is a new response iocb in the response ring.
1590 * The caller is not required to hold any locks. This function
1591 * gets the command iocb associated with the response iocb and
1592 * calls the completion handler for the command iocb. If there
1593 * is no completion handler, the function will free the resources
1594 * associated with command iocb. If the response iocb is for
1595 * an already aborted command iocb, the status of the completion
1596 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
1597 * This function always returns 1.
1598 **/
1220static int 1599static int
1221lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 1600lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1222 struct lpfc_iocbq *saveq) 1601 struct lpfc_iocbq *saveq)
@@ -1233,6 +1612,17 @@ lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1233 if (cmdiocbp) { 1612 if (cmdiocbp) {
1234 if (cmdiocbp->iocb_cmpl) { 1613 if (cmdiocbp->iocb_cmpl) {
1235 /* 1614 /*
1615 * If an ELS command failed send an event to mgmt
1616 * application.
1617 */
1618 if (saveq->iocb.ulpStatus &&
1619 (pring->ringno == LPFC_ELS_RING) &&
1620 (cmdiocbp->iocb.ulpCommand ==
1621 CMD_ELS_REQUEST64_CR))
1622 lpfc_send_els_failure_event(phba,
1623 cmdiocbp, saveq);
1624
1625 /*
1236 * Post all ELS completions to the worker thread. 1626 * Post all ELS completions to the worker thread.
1237 * All other are passed to the completion callback. 1627 * All other are passed to the completion callback.
1238 */ 1628 */
@@ -1282,12 +1672,20 @@ lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1282 return rc; 1672 return rc;
1283} 1673}
1284 1674
1675/**
1676 * lpfc_sli_rsp_pointers_error: Response ring pointer error handler.
1677 * @phba: Pointer to HBA context object.
1678 * @pring: Pointer to driver SLI ring object.
1679 *
1680 * This function is called from the iocb ring event handlers when
1681 * put pointer is ahead of the get pointer for a ring. This function signal
1682 * an error attention condition to the worker thread and the worker
1683 * thread will transition the HBA to offline state.
1684 **/
1285static void 1685static void
1286lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) 1686lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1287{ 1687{
1288 struct lpfc_pgp *pgp = (phba->sli_rev == 3) ? 1688 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1289 &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
1290 &phba->slim2p->mbx.us.s2.port[pring->ringno];
1291 /* 1689 /*
1292 * Ring <ringno> handler: portRspPut <portRspPut> is bigger then 1690 * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
1293 * rsp ring <portRspMax> 1691 * rsp ring <portRspMax>
@@ -1312,6 +1710,51 @@ lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1312 return; 1710 return;
1313} 1711}
1314 1712
1713/**
1714 * lpfc_poll_eratt: Error attention polling timer timeout handler.
1715 * @ptr: Pointer to address of HBA context object.
1716 *
1717 * This function is invoked by the Error Attention polling timer when the
1718 * timer times out. It will check the SLI Error Attention register for
1719 * possible attention events. If so, it will post an Error Attention event
1720 * and wake up worker thread to process it. Otherwise, it will set up the
1721 * Error Attention polling timer for the next poll.
1722 **/
1723void lpfc_poll_eratt(unsigned long ptr)
1724{
1725 struct lpfc_hba *phba;
1726 uint32_t eratt = 0;
1727
1728 phba = (struct lpfc_hba *)ptr;
1729
1730 /* Check chip HA register for error event */
1731 eratt = lpfc_sli_check_eratt(phba);
1732
1733 if (eratt)
1734 /* Tell the worker thread there is work to do */
1735 lpfc_worker_wake_up(phba);
1736 else
1737 /* Restart the timer for next eratt poll */
1738 mod_timer(&phba->eratt_poll, jiffies +
1739 HZ * LPFC_ERATT_POLL_INTERVAL);
1740 return;
1741}
1742
1743/**
1744 * lpfc_sli_poll_fcp_ring: Handle FCP ring completion in polling mode.
1745 * @phba: Pointer to HBA context object.
1746 *
1747 * This function is called from lpfc_queuecommand, lpfc_poll_timeout,
1748 * lpfc_abort_handler and lpfc_slave_configure when FCP_RING_POLLING
1749 * is enabled.
1750 *
1751 * The caller does not hold any lock.
1752 * The function processes each response iocb in the response ring until it
1753 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
1754 * LE bit set. The function will call the completion handler of the command iocb
1755 * if the response iocb indicates a completion for a command iocb or it is
1756 * an abort completion.
1757 **/
1315void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba) 1758void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba)
1316{ 1759{
1317 struct lpfc_sli *psli = &phba->sli; 1760 struct lpfc_sli *psli = &phba->sli;
@@ -1320,7 +1763,7 @@ void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba)
1320 IOCB_t *entry = NULL; 1763 IOCB_t *entry = NULL;
1321 struct lpfc_iocbq *cmdiocbq = NULL; 1764 struct lpfc_iocbq *cmdiocbq = NULL;
1322 struct lpfc_iocbq rspiocbq; 1765 struct lpfc_iocbq rspiocbq;
1323 struct lpfc_pgp *pgp; 1766 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1324 uint32_t status; 1767 uint32_t status;
1325 uint32_t portRspPut, portRspMax; 1768 uint32_t portRspPut, portRspMax;
1326 int type; 1769 int type;
@@ -1330,11 +1773,6 @@ void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba)
1330 1773
1331 pring->stats.iocb_event++; 1774 pring->stats.iocb_event++;
1332 1775
1333 pgp = (phba->sli_rev == 3) ?
1334 &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
1335 &phba->slim2p->mbx.us.s2.port[pring->ringno];
1336
1337
1338 /* 1776 /*
1339 * The next available response entry should never exceed the maximum 1777 * The next available response entry should never exceed the maximum
1340 * entries. If it does, treat it as an adapter hardware error. 1778 * entries. If it does, treat it as an adapter hardware error.
@@ -1372,8 +1810,8 @@ void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba)
1372 irsp->un.ulpWord[3], 1810 irsp->un.ulpWord[3],
1373 irsp->un.ulpWord[4], 1811 irsp->un.ulpWord[4],
1374 irsp->un.ulpWord[5], 1812 irsp->un.ulpWord[5],
1375 *(((uint32_t *) irsp) + 6), 1813 *(uint32_t *)&irsp->un1,
1376 *(((uint32_t *) irsp) + 7)); 1814 *((uint32_t *)&irsp->un1 + 1));
1377 } 1815 }
1378 1816
1379 switch (type) { 1817 switch (type) {
@@ -1465,17 +1903,28 @@ void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba)
1465 return; 1903 return;
1466} 1904}
1467 1905
1468/* 1906/**
1907 * lpfc_sli_handle_fast_ring_event: Handle ring events on FCP ring.
1908 * @phba: Pointer to HBA context object.
1909 * @pring: Pointer to driver SLI ring object.
1910 * @mask: Host attention register mask for this ring.
1911 *
1912 * This function is called from the interrupt context when there is a ring
1913 * event for the fcp ring. The caller does not hold any lock.
1914 * The function processes each response iocb in the response ring until it
1915 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
1916 * LE bit set. The function will call the completion handler of the command iocb
1917 * if the response iocb indicates a completion for a command iocb or it is
1918 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
1919 * function if this is an unsolicited iocb.
1469 * This routine presumes LPFC_FCP_RING handling and doesn't bother 1920 * This routine presumes LPFC_FCP_RING handling and doesn't bother
1470 * to check it explicitly. 1921 * to check it explicitly. This function always returns 1.
1471 */ 1922 **/
1472static int 1923static int
1473lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba, 1924lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
1474 struct lpfc_sli_ring *pring, uint32_t mask) 1925 struct lpfc_sli_ring *pring, uint32_t mask)
1475{ 1926{
1476 struct lpfc_pgp *pgp = (phba->sli_rev == 3) ? 1927 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1477 &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
1478 &phba->slim2p->mbx.us.s2.port[pring->ringno];
1479 IOCB_t *irsp = NULL; 1928 IOCB_t *irsp = NULL;
1480 IOCB_t *entry = NULL; 1929 IOCB_t *entry = NULL;
1481 struct lpfc_iocbq *cmdiocbq = NULL; 1930 struct lpfc_iocbq *cmdiocbq = NULL;
@@ -1548,8 +1997,8 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
1548 irsp->un.ulpWord[3], 1997 irsp->un.ulpWord[3],
1549 irsp->un.ulpWord[4], 1998 irsp->un.ulpWord[4],
1550 irsp->un.ulpWord[5], 1999 irsp->un.ulpWord[5],
1551 *(((uint32_t *) irsp) + 6), 2000 *(uint32_t *)&irsp->un1,
1552 *(((uint32_t *) irsp) + 7)); 2001 *((uint32_t *)&irsp->un1 + 1));
1553 } 2002 }
1554 2003
1555 switch (type) { 2004 switch (type) {
@@ -1646,13 +2095,28 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
1646 return rc; 2095 return rc;
1647} 2096}
1648 2097
2098/**
2099 * lpfc_sli_handle_slow_ring_event: Handle ring events for non-FCP rings.
2100 * @phba: Pointer to HBA context object.
2101 * @pring: Pointer to driver SLI ring object.
2102 * @mask: Host attention register mask for this ring.
2103 *
2104 * This function is called from the worker thread when there is a ring
2105 * event for non-fcp rings. The caller does not hold any lock .
2106 * The function processes each response iocb in the response ring until it
2107 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
2108 * LE bit set. The function will call lpfc_sli_process_sol_iocb function if the
2109 * response iocb indicates a completion of a command iocb. The function
2110 * will call lpfc_sli_process_unsol_iocb function if this is an unsolicited
2111 * iocb. The function frees the resources or calls the completion handler if
2112 * this iocb is an abort completion. The function returns 0 when the allocated
2113 * iocbs are not freed, otherwise returns 1.
2114 **/
1649int 2115int
1650lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba, 2116lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
1651 struct lpfc_sli_ring *pring, uint32_t mask) 2117 struct lpfc_sli_ring *pring, uint32_t mask)
1652{ 2118{
1653 struct lpfc_pgp *pgp = (phba->sli_rev == 3) ? 2119 struct lpfc_pgp *pgp;
1654 &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
1655 &phba->slim2p->mbx.us.s2.port[pring->ringno];
1656 IOCB_t *entry; 2120 IOCB_t *entry;
1657 IOCB_t *irsp = NULL; 2121 IOCB_t *irsp = NULL;
1658 struct lpfc_iocbq *rspiocbp = NULL; 2122 struct lpfc_iocbq *rspiocbp = NULL;
@@ -1666,6 +2130,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
1666 int rc = 1; 2130 int rc = 1;
1667 unsigned long iflag; 2131 unsigned long iflag;
1668 2132
2133 pgp = &phba->port_gp[pring->ringno];
1669 spin_lock_irqsave(&phba->hbalock, iflag); 2134 spin_lock_irqsave(&phba->hbalock, iflag);
1670 pring->stats.iocb_event++; 2135 pring->stats.iocb_event++;
1671 2136
@@ -1904,6 +2369,16 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
1904 return rc; 2369 return rc;
1905} 2370}
1906 2371
2372/**
2373 * lpfc_sli_abort_iocb_ring: Abort all iocbs in the ring.
2374 * @phba: Pointer to HBA context object.
2375 * @pring: Pointer to driver SLI ring object.
2376 *
2377 * This function aborts all iocbs in the given ring and frees all the iocb
2378 * objects in txq. This function issues an abort iocb for all the iocb commands
2379 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
2380 * the return of this function. The caller is not required to hold any locks.
2381 **/
1907void 2382void
1908lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) 2383lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1909{ 2384{
@@ -1943,6 +2418,83 @@ lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1943 } 2418 }
1944} 2419}
1945 2420
2421/**
2422 * lpfc_sli_flush_fcp_rings: flush all iocbs in the fcp ring.
2423 * @phba: Pointer to HBA context object.
2424 *
2425 * This function flushes all iocbs in the fcp ring and frees all the iocb
2426 * objects in txq and txcmplq. This function will not issue abort iocbs
2427 * for all the iocb commands in txcmplq, they will just be returned with
2428 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
2429 * slot has been permanently disabled.
2430 **/
2431void
2432lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
2433{
2434 LIST_HEAD(txq);
2435 LIST_HEAD(txcmplq);
2436 struct lpfc_iocbq *iocb;
2437 IOCB_t *cmd = NULL;
2438 struct lpfc_sli *psli = &phba->sli;
2439 struct lpfc_sli_ring *pring;
2440
2441 /* Currently, only one fcp ring */
2442 pring = &psli->ring[psli->fcp_ring];
2443
2444 spin_lock_irq(&phba->hbalock);
2445 /* Retrieve everything on txq */
2446 list_splice_init(&pring->txq, &txq);
2447 pring->txq_cnt = 0;
2448
2449 /* Retrieve everything on the txcmplq */
2450 list_splice_init(&pring->txcmplq, &txcmplq);
2451 pring->txcmplq_cnt = 0;
2452 spin_unlock_irq(&phba->hbalock);
2453
2454 /* Flush the txq */
2455 while (!list_empty(&txq)) {
2456 iocb = list_get_first(&txq, struct lpfc_iocbq, list);
2457 cmd = &iocb->iocb;
2458 list_del_init(&iocb->list);
2459
2460 if (!iocb->iocb_cmpl)
2461 lpfc_sli_release_iocbq(phba, iocb);
2462 else {
2463 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
2464 cmd->un.ulpWord[4] = IOERR_SLI_DOWN;
2465 (iocb->iocb_cmpl) (phba, iocb, iocb);
2466 }
2467 }
2468
2469 /* Flush the txcmpq */
2470 while (!list_empty(&txcmplq)) {
2471 iocb = list_get_first(&txcmplq, struct lpfc_iocbq, list);
2472 cmd = &iocb->iocb;
2473 list_del_init(&iocb->list);
2474
2475 if (!iocb->iocb_cmpl)
2476 lpfc_sli_release_iocbq(phba, iocb);
2477 else {
2478 cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
2479 cmd->un.ulpWord[4] = IOERR_SLI_DOWN;
2480 (iocb->iocb_cmpl) (phba, iocb, iocb);
2481 }
2482 }
2483}
2484
2485/**
2486 * lpfc_sli_brdready: Check for host status bits.
2487 * @phba: Pointer to HBA context object.
2488 * @mask: Bit mask to be checked.
2489 *
2490 * This function reads the host status register and compares
2491 * with the provided bit mask to check if HBA completed
2492 * the restart. This function will wait in a loop for the
2493 * HBA to complete restart. If the HBA does not restart within
2494 * 15 iterations, the function will reset the HBA again. The
2495 * function returns 1 when HBA fail to restart otherwise returns
2496 * zero.
2497 **/
1946int 2498int
1947lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask) 2499lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
1948{ 2500{
@@ -1990,6 +2542,13 @@ lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
1990 2542
1991#define BARRIER_TEST_PATTERN (0xdeadbeef) 2543#define BARRIER_TEST_PATTERN (0xdeadbeef)
1992 2544
2545/**
2546 * lpfc_reset_barrier: Make HBA ready for HBA reset.
2547 * @phba: Pointer to HBA context object.
2548 *
2549 * This function is called before resetting an HBA. This
2550 * function requests HBA to quiesce DMAs before a reset.
2551 **/
1993void lpfc_reset_barrier(struct lpfc_hba *phba) 2552void lpfc_reset_barrier(struct lpfc_hba *phba)
1994{ 2553{
1995 uint32_t __iomem *resp_buf; 2554 uint32_t __iomem *resp_buf;
@@ -2063,6 +2622,17 @@ restore_hc:
2063 readl(phba->HCregaddr); /* flush */ 2622 readl(phba->HCregaddr); /* flush */
2064} 2623}
2065 2624
2625/**
2626 * lpfc_sli_brdkill: Issue a kill_board mailbox command.
2627 * @phba: Pointer to HBA context object.
2628 *
2629 * This function issues a kill_board mailbox command and waits for
2630 * the error attention interrupt. This function is called for stopping
2631 * the firmware processing. The caller is not required to hold any
2632 * locks. This function calls lpfc_hba_down_post function to free
2633 * any pending commands after the kill. The function will return 1 when it
2634 * fails to kill the board else will return 0.
2635 **/
2066int 2636int
2067lpfc_sli_brdkill(struct lpfc_hba *phba) 2637lpfc_sli_brdkill(struct lpfc_hba *phba)
2068{ 2638{
@@ -2139,6 +2709,17 @@ lpfc_sli_brdkill(struct lpfc_hba *phba)
2139 return ha_copy & HA_ERATT ? 0 : 1; 2709 return ha_copy & HA_ERATT ? 0 : 1;
2140} 2710}
2141 2711
2712/**
2713 * lpfc_sli_brdreset: Reset the HBA.
2714 * @phba: Pointer to HBA context object.
2715 *
2716 * This function resets the HBA by writing HC_INITFF to the control
2717 * register. After the HBA resets, this function resets all the iocb ring
2718 * indices. This function disables PCI layer parity checking during
2719 * the reset.
2720 * This function returns 0 always.
2721 * The caller is not required to hold any locks.
2722 **/
2142int 2723int
2143lpfc_sli_brdreset(struct lpfc_hba *phba) 2724lpfc_sli_brdreset(struct lpfc_hba *phba)
2144{ 2725{
@@ -2191,6 +2772,19 @@ lpfc_sli_brdreset(struct lpfc_hba *phba)
2191 return 0; 2772 return 0;
2192} 2773}
2193 2774
2775/**
2776 * lpfc_sli_brdrestart: Restart the HBA.
2777 * @phba: Pointer to HBA context object.
2778 *
2779 * This function is called in the SLI initialization code path to
2780 * restart the HBA. The caller is not required to hold any lock.
2781 * This function writes MBX_RESTART mailbox command to the SLIM and
2782 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
2783 * function to free any pending commands. The function enables
2784 * POST only during the first initialization. The function returns zero.
2785 * The function does not guarantee completion of MBX_RESTART mailbox
2786 * command before the return of this function.
2787 **/
2194int 2788int
2195lpfc_sli_brdrestart(struct lpfc_hba *phba) 2789lpfc_sli_brdrestart(struct lpfc_hba *phba)
2196{ 2790{
@@ -2251,6 +2845,16 @@ lpfc_sli_brdrestart(struct lpfc_hba *phba)
2251 return 0; 2845 return 0;
2252} 2846}
2253 2847
2848/**
2849 * lpfc_sli_chipset_init: Wait for the restart of the HBA after a restart.
2850 * @phba: Pointer to HBA context object.
2851 *
2852 * This function is called after a HBA restart to wait for successful
2853 * restart of the HBA. Successful restart of the HBA is indicated by
2854 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
2855 * iteration, the function will restart the HBA again. The function returns
2856 * zero if HBA successfully restarted else returns negative error code.
2857 **/
2254static int 2858static int
2255lpfc_sli_chipset_init(struct lpfc_hba *phba) 2859lpfc_sli_chipset_init(struct lpfc_hba *phba)
2256{ 2860{
@@ -2336,12 +2940,25 @@ lpfc_sli_chipset_init(struct lpfc_hba *phba)
2336 return 0; 2940 return 0;
2337} 2941}
2338 2942
2943/**
2944 * lpfc_sli_hbq_count: Get the number of HBQs to be configured.
2945 *
2946 * This function calculates and returns the number of HBQs required to be
2947 * configured.
2948 **/
2339int 2949int
2340lpfc_sli_hbq_count(void) 2950lpfc_sli_hbq_count(void)
2341{ 2951{
2342 return ARRAY_SIZE(lpfc_hbq_defs); 2952 return ARRAY_SIZE(lpfc_hbq_defs);
2343} 2953}
2344 2954
2955/**
2956 * lpfc_sli_hbq_entry_count: Calculate total number of hbq entries.
2957 *
2958 * This function adds the number of hbq entries in every HBQ to get
2959 * the total number of hbq entries required for the HBA and returns
2960 * the total count.
2961 **/
2345static int 2962static int
2346lpfc_sli_hbq_entry_count(void) 2963lpfc_sli_hbq_entry_count(void)
2347{ 2964{
@@ -2354,12 +2971,27 @@ lpfc_sli_hbq_entry_count(void)
2354 return count; 2971 return count;
2355} 2972}
2356 2973
2974/**
2975 * lpfc_sli_hbq_size: Calculate memory required for all hbq entries.
2976 *
2977 * This function calculates amount of memory required for all hbq entries
2978 * to be configured and returns the total memory required.
2979 **/
2357int 2980int
2358lpfc_sli_hbq_size(void) 2981lpfc_sli_hbq_size(void)
2359{ 2982{
2360 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry); 2983 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
2361} 2984}
2362 2985
2986/**
2987 * lpfc_sli_hbq_setup: configure and initialize HBQs.
2988 * @phba: Pointer to HBA context object.
2989 *
2990 * This function is called during the SLI initialization to configure
2991 * all the HBQs and post buffers to the HBQ. The caller is not
2992 * required to hold any locks. This function will return zero if successful
2993 * else it will return negative error code.
2994 **/
2363static int 2995static int
2364lpfc_sli_hbq_setup(struct lpfc_hba *phba) 2996lpfc_sli_hbq_setup(struct lpfc_hba *phba)
2365{ 2997{
@@ -2415,15 +3047,26 @@ lpfc_sli_hbq_setup(struct lpfc_hba *phba)
2415 mempool_free(pmb, phba->mbox_mem_pool); 3047 mempool_free(pmb, phba->mbox_mem_pool);
2416 3048
2417 /* Initially populate or replenish the HBQs */ 3049 /* Initially populate or replenish the HBQs */
2418 for (hbqno = 0; hbqno < hbq_count; ++hbqno) { 3050 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
2419 if (lpfc_sli_hbqbuf_init_hbqs(phba, hbqno)) 3051 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
2420 return -ENOMEM;
2421 }
2422 return 0; 3052 return 0;
2423} 3053}
2424 3054
2425static int 3055/**
2426lpfc_do_config_port(struct lpfc_hba *phba, int sli_mode) 3056 * lpfc_sli_config_port: Issue config port mailbox command.
3057 * @phba: Pointer to HBA context object.
3058 * @sli_mode: sli mode - 2/3
3059 *
3060 * This function is called by the sli intialization code path
3061 * to issue config_port mailbox command. This function restarts the
3062 * HBA firmware and issues a config_port mailbox command to configure
3063 * the SLI interface in the sli mode specified by sli_mode
3064 * variable. The caller is not required to hold any locks.
3065 * The function returns 0 if successful, else returns negative error
3066 * code.
3067 **/
3068int
3069lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
2427{ 3070{
2428 LPFC_MBOXQ_t *pmb; 3071 LPFC_MBOXQ_t *pmb;
2429 uint32_t resetcount = 0, rc = 0, done = 0; 3072 uint32_t resetcount = 0, rc = 0, done = 0;
@@ -2460,13 +3103,15 @@ lpfc_do_config_port(struct lpfc_hba *phba, int sli_mode)
2460 if (rc == -ERESTART) { 3103 if (rc == -ERESTART) {
2461 phba->link_state = LPFC_LINK_UNKNOWN; 3104 phba->link_state = LPFC_LINK_UNKNOWN;
2462 continue; 3105 continue;
2463 } else if (rc) { 3106 } else if (rc)
2464 break; 3107 break;
2465 }
2466
2467 phba->link_state = LPFC_INIT_MBX_CMDS; 3108 phba->link_state = LPFC_INIT_MBX_CMDS;
2468 lpfc_config_port(phba, pmb); 3109 lpfc_config_port(phba, pmb);
2469 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); 3110 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
3111 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
3112 LPFC_SLI3_HBQ_ENABLED |
3113 LPFC_SLI3_CRP_ENABLED |
3114 LPFC_SLI3_INB_ENABLED);
2470 if (rc != MBX_SUCCESS) { 3115 if (rc != MBX_SUCCESS) {
2471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3116 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2472 "0442 Adapter failed to init, mbxCmd x%x " 3117 "0442 Adapter failed to init, mbxCmd x%x "
@@ -2476,30 +3121,64 @@ lpfc_do_config_port(struct lpfc_hba *phba, int sli_mode)
2476 phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; 3121 phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE;
2477 spin_unlock_irq(&phba->hbalock); 3122 spin_unlock_irq(&phba->hbalock);
2478 rc = -ENXIO; 3123 rc = -ENXIO;
2479 } else { 3124 } else
2480 done = 1; 3125 done = 1;
2481 phba->max_vpi = (phba->max_vpi &&
2482 pmb->mb.un.varCfgPort.gmv) != 0
2483 ? pmb->mb.un.varCfgPort.max_vpi
2484 : 0;
2485 }
2486 } 3126 }
2487
2488 if (!done) { 3127 if (!done) {
2489 rc = -EINVAL; 3128 rc = -EINVAL;
2490 goto do_prep_failed; 3129 goto do_prep_failed;
2491 } 3130 }
2492 3131 if (pmb->mb.un.varCfgPort.sli_mode == 3) {
2493 if ((pmb->mb.un.varCfgPort.sli_mode == 3) && 3132 if (!pmb->mb.un.varCfgPort.cMA) {
2494 (!pmb->mb.un.varCfgPort.cMA)) { 3133 rc = -ENXIO;
2495 rc = -ENXIO; 3134 goto do_prep_failed;
3135 }
3136 if (phba->max_vpi && pmb->mb.un.varCfgPort.gmv) {
3137 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
3138 phba->max_vpi = pmb->mb.un.varCfgPort.max_vpi;
3139 } else
3140 phba->max_vpi = 0;
3141 if (pmb->mb.un.varCfgPort.gerbm)
3142 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
3143 if (pmb->mb.un.varCfgPort.gcrp)
3144 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
3145 if (pmb->mb.un.varCfgPort.ginb) {
3146 phba->sli3_options |= LPFC_SLI3_INB_ENABLED;
3147 phba->port_gp = phba->mbox->us.s3_inb_pgp.port;
3148 phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy;
3149 phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter;
3150 phba->inb_last_counter =
3151 phba->mbox->us.s3_inb_pgp.counter;
3152 } else {
3153 phba->port_gp = phba->mbox->us.s3_pgp.port;
3154 phba->inb_ha_copy = NULL;
3155 phba->inb_counter = NULL;
3156 }
3157 } else {
3158 phba->port_gp = phba->mbox->us.s2.port;
3159 phba->inb_ha_copy = NULL;
3160 phba->inb_counter = NULL;
3161 phba->max_vpi = 0;
2496 } 3162 }
2497
2498do_prep_failed: 3163do_prep_failed:
2499 mempool_free(pmb, phba->mbox_mem_pool); 3164 mempool_free(pmb, phba->mbox_mem_pool);
2500 return rc; 3165 return rc;
2501} 3166}
2502 3167
3168
3169/**
3170 * lpfc_sli_hba_setup: SLI intialization function.
3171 * @phba: Pointer to HBA context object.
3172 *
3173 * This function is the main SLI intialization function. This function
3174 * is called by the HBA intialization code, HBA reset code and HBA
3175 * error attention handler code. Caller is not required to hold any
3176 * locks. This function issues config_port mailbox command to configure
3177 * the SLI, setup iocb rings and HBQ rings. In the end the function
3178 * calls the config_port_post function to issue init_link mailbox
3179 * command and to start the discovery. The function will return zero
3180 * if successful, else it will return negative error code.
3181 **/
2503int 3182int
2504lpfc_sli_hba_setup(struct lpfc_hba *phba) 3183lpfc_sli_hba_setup(struct lpfc_hba *phba)
2505{ 3184{
@@ -2528,22 +3207,20 @@ lpfc_sli_hba_setup(struct lpfc_hba *phba)
2528 break; 3207 break;
2529 } 3208 }
2530 3209
2531 rc = lpfc_do_config_port(phba, mode); 3210 rc = lpfc_sli_config_port(phba, mode);
3211
2532 if (rc && lpfc_sli_mode == 3) 3212 if (rc && lpfc_sli_mode == 3)
2533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT, 3213 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
2534 "1820 Unable to select SLI-3. " 3214 "1820 Unable to select SLI-3. "
2535 "Not supported by adapter.\n"); 3215 "Not supported by adapter.\n");
2536 if (rc && mode != 2) 3216 if (rc && mode != 2)
2537 rc = lpfc_do_config_port(phba, 2); 3217 rc = lpfc_sli_config_port(phba, 2);
2538 if (rc) 3218 if (rc)
2539 goto lpfc_sli_hba_setup_error; 3219 goto lpfc_sli_hba_setup_error;
2540 3220
2541 if (phba->sli_rev == 3) { 3221 if (phba->sli_rev == 3) {
2542 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE; 3222 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
2543 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE; 3223 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
2544 phba->sli3_options |= LPFC_SLI3_ENABLED;
2545 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
2546
2547 } else { 3224 } else {
2548 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE; 3225 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
2549 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE; 3226 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
@@ -2558,8 +3235,7 @@ lpfc_sli_hba_setup(struct lpfc_hba *phba)
2558 if (rc) 3235 if (rc)
2559 goto lpfc_sli_hba_setup_error; 3236 goto lpfc_sli_hba_setup_error;
2560 3237
2561 /* Init HBQs */ 3238 /* Init HBQs */
2562
2563 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) { 3239 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2564 rc = lpfc_sli_hbq_setup(phba); 3240 rc = lpfc_sli_hbq_setup(phba);
2565 if (rc) 3241 if (rc)
@@ -2581,19 +3257,19 @@ lpfc_sli_hba_setup_error:
2581 return rc; 3257 return rc;
2582} 3258}
2583 3259
2584/*! lpfc_mbox_timeout 3260
2585 * 3261/**
2586 * \pre 3262 * lpfc_mbox_timeout: Timeout call back function for mbox timer.
2587 * \post 3263 * @ptr: context object - pointer to hba structure.
2588 * \param hba Pointer to per struct lpfc_hba structure
2589 * \param l1 Pointer to the driver's mailbox queue.
2590 * \return
2591 * void
2592 *
2593 * \b Description:
2594 * 3264 *
2595 * This routine handles mailbox timeout events at timer interrupt context. 3265 * This is the callback function for mailbox timer. The mailbox
2596 */ 3266 * timer is armed when a new mailbox command is issued and the timer
3267 * is deleted when the mailbox complete. The function is called by
3268 * the kernel timer code when a mailbox does not complete within
3269 * expected time. This function wakes up the worker thread to
3270 * process the mailbox timeout and returns. All the processing is
3271 * done by the worker thread function lpfc_mbox_timeout_handler.
3272 **/
2597void 3273void
2598lpfc_mbox_timeout(unsigned long ptr) 3274lpfc_mbox_timeout(unsigned long ptr)
2599{ 3275{
@@ -2612,6 +3288,15 @@ lpfc_mbox_timeout(unsigned long ptr)
2612 return; 3288 return;
2613} 3289}
2614 3290
3291
3292/**
3293 * lpfc_mbox_timeout_handler: Worker thread function to handle mailbox timeout.
3294 * @phba: Pointer to HBA context object.
3295 *
3296 * This function is called from worker thread when a mailbox command times out.
3297 * The caller is not required to hold any locks. This function will reset the
3298 * HBA and recover all the pending commands.
3299 **/
2615void 3300void
2616lpfc_mbox_timeout_handler(struct lpfc_hba *phba) 3301lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
2617{ 3302{
@@ -2666,6 +3351,32 @@ lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
2666 return; 3351 return;
2667} 3352}
2668 3353
3354/**
3355 * lpfc_sli_issue_mbox: Issue a mailbox command to firmware.
3356 * @phba: Pointer to HBA context object.
3357 * @pmbox: Pointer to mailbox object.
3358 * @flag: Flag indicating how the mailbox need to be processed.
3359 *
3360 * This function is called by discovery code and HBA management code
3361 * to submit a mailbox command to firmware. This function gets the
3362 * hbalock to protect the data structures.
3363 * The mailbox command can be submitted in polling mode, in which case
3364 * this function will wait in a polling loop for the completion of the
3365 * mailbox.
3366 * If the mailbox is submitted in no_wait mode (not polling) the
3367 * function will submit the command and returns immediately without waiting
3368 * for the mailbox completion. The no_wait is supported only when HBA
3369 * is in SLI2/SLI3 mode - interrupts are enabled.
3370 * The SLI interface allows only one mailbox pending at a time. If the
3371 * mailbox is issued in polling mode and there is already a mailbox
3372 * pending, then the function will return an error. If the mailbox is issued
3373 * in NO_WAIT mode and there is a mailbox pending already, the function
3374 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
3375 * The sli layer owns the mailbox object until the completion of mailbox
3376 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
3377 * return codes the caller owns the mailbox command after the return of
3378 * the function.
3379 **/
2669int 3380int
2670lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag) 3381lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
2671{ 3382{
@@ -2676,7 +3387,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
2676 int i; 3387 int i;
2677 unsigned long timeout; 3388 unsigned long timeout;
2678 unsigned long drvr_flag = 0; 3389 unsigned long drvr_flag = 0;
2679 volatile uint32_t word0, ldata; 3390 uint32_t word0, ldata;
2680 void __iomem *to_slim; 3391 void __iomem *to_slim;
2681 int processing_queue = 0; 3392 int processing_queue = 0;
2682 3393
@@ -2836,12 +3547,11 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
2836 3547
2837 if (psli->sli_flag & LPFC_SLI2_ACTIVE) { 3548 if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
2838 /* First copy command data to host SLIM area */ 3549 /* First copy command data to host SLIM area */
2839 lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE); 3550 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
2840 } else { 3551 } else {
2841 if (mb->mbxCommand == MBX_CONFIG_PORT) { 3552 if (mb->mbxCommand == MBX_CONFIG_PORT) {
2842 /* copy command data into host mbox for cmpl */ 3553 /* copy command data into host mbox for cmpl */
2843 lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, 3554 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
2844 MAILBOX_CMD_SIZE);
2845 } 3555 }
2846 3556
2847 /* First copy mbox command data to HBA SLIM, skip past first 3557 /* First copy mbox command data to HBA SLIM, skip past first
@@ -2851,7 +3561,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
2851 MAILBOX_CMD_SIZE - sizeof (uint32_t)); 3561 MAILBOX_CMD_SIZE - sizeof (uint32_t));
2852 3562
2853 /* Next copy over first word, with mbxOwner set */ 3563 /* Next copy over first word, with mbxOwner set */
2854 ldata = *((volatile uint32_t *)mb); 3564 ldata = *((uint32_t *)mb);
2855 to_slim = phba->MBslimaddr; 3565 to_slim = phba->MBslimaddr;
2856 writel(ldata, to_slim); 3566 writel(ldata, to_slim);
2857 readl(to_slim); /* flush */ 3567 readl(to_slim); /* flush */
@@ -2883,7 +3593,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
2883 3593
2884 if (psli->sli_flag & LPFC_SLI2_ACTIVE) { 3594 if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
2885 /* First read mbox status word */ 3595 /* First read mbox status word */
2886 word0 = *((volatile uint32_t *)&phba->slim2p->mbx); 3596 word0 = *((uint32_t *)phba->mbox);
2887 word0 = le32_to_cpu(word0); 3597 word0 = le32_to_cpu(word0);
2888 } else { 3598 } else {
2889 /* First read mbox status word */ 3599 /* First read mbox status word */
@@ -2922,12 +3632,11 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
2922 3632
2923 if (psli->sli_flag & LPFC_SLI2_ACTIVE) { 3633 if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
2924 /* First copy command data */ 3634 /* First copy command data */
2925 word0 = *((volatile uint32_t *) 3635 word0 = *((uint32_t *)phba->mbox);
2926 &phba->slim2p->mbx);
2927 word0 = le32_to_cpu(word0); 3636 word0 = le32_to_cpu(word0);
2928 if (mb->mbxCommand == MBX_CONFIG_PORT) { 3637 if (mb->mbxCommand == MBX_CONFIG_PORT) {
2929 MAILBOX_t *slimmb; 3638 MAILBOX_t *slimmb;
2930 volatile uint32_t slimword0; 3639 uint32_t slimword0;
2931 /* Check real SLIM for any errors */ 3640 /* Check real SLIM for any errors */
2932 slimword0 = readl(phba->MBslimaddr); 3641 slimword0 = readl(phba->MBslimaddr);
2933 slimmb = (MAILBOX_t *) & slimword0; 3642 slimmb = (MAILBOX_t *) & slimword0;
@@ -2948,8 +3657,7 @@ lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
2948 3657
2949 if (psli->sli_flag & LPFC_SLI2_ACTIVE) { 3658 if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
2950 /* copy results back to user */ 3659 /* copy results back to user */
2951 lpfc_sli_pcimem_bcopy(&phba->slim2p->mbx, mb, 3660 lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
2952 MAILBOX_CMD_SIZE);
2953 } else { 3661 } else {
2954 /* First copy command data */ 3662 /* First copy command data */
2955 lpfc_memcpy_from_slim(mb, phba->MBslimaddr, 3663 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
@@ -2980,9 +3688,16 @@ out_not_finished:
2980 return MBX_NOT_FINISHED; 3688 return MBX_NOT_FINISHED;
2981} 3689}
2982 3690
2983/* 3691/**
2984 * Caller needs to hold lock. 3692 * __lpfc_sli_ringtx_put: Add an iocb to the txq.
2985 */ 3693 * @phba: Pointer to HBA context object.
3694 * @pring: Pointer to driver SLI ring object.
3695 * @piocb: Pointer to address of newly added command iocb.
3696 *
3697 * This function is called with hbalock held to add a command
3698 * iocb to the txq when SLI layer cannot submit the command iocb
3699 * to the ring.
3700 **/
2986static void 3701static void
2987__lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 3702__lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2988 struct lpfc_iocbq *piocb) 3703 struct lpfc_iocbq *piocb)
@@ -2992,6 +3707,23 @@ __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2992 pring->txq_cnt++; 3707 pring->txq_cnt++;
2993} 3708}
2994 3709
3710/**
3711 * lpfc_sli_next_iocb: Get the next iocb in the txq.
3712 * @phba: Pointer to HBA context object.
3713 * @pring: Pointer to driver SLI ring object.
3714 * @piocb: Pointer to address of newly added command iocb.
3715 *
3716 * This function is called with hbalock held before a new
3717 * iocb is submitted to the firmware. This function checks
3718 * txq to flush the iocbs in txq to Firmware before
3719 * submitting new iocbs to the Firmware.
3720 * If there are iocbs in the txq which need to be submitted
3721 * to firmware, lpfc_sli_next_iocb returns the first element
3722 * of the txq after dequeuing it from txq.
3723 * If there is no iocb in the txq then the function will return
3724 * *piocb and *piocb is set to NULL. Caller needs to check
3725 * *piocb to find if there are more commands in the txq.
3726 **/
2995static struct lpfc_iocbq * 3727static struct lpfc_iocbq *
2996lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 3728lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2997 struct lpfc_iocbq **piocb) 3729 struct lpfc_iocbq **piocb)
@@ -3007,9 +3739,30 @@ lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3007 return nextiocb; 3739 return nextiocb;
3008} 3740}
3009 3741
3010/* 3742/**
3011 * Lockless version of lpfc_sli_issue_iocb. 3743 * __lpfc_sli_issue_iocb: Lockless version of lpfc_sli_issue_iocb.
3012 */ 3744 * @phba: Pointer to HBA context object.
3745 * @pring: Pointer to driver SLI ring object.
3746 * @piocb: Pointer to command iocb.
3747 * @flag: Flag indicating if this command can be put into txq.
3748 *
3749 * __lpfc_sli_issue_iocb is used by other functions in the driver
3750 * to issue an iocb command to the HBA. If the PCI slot is recovering
3751 * from error state or if HBA is resetting or if LPFC_STOP_IOCB_EVENT
3752 * flag is turned on, the function returns IOCB_ERROR.
3753 * When the link is down, this function allows only iocbs for
3754 * posting buffers.
3755 * This function finds next available slot in the command ring and
3756 * posts the command to the available slot and writes the port
3757 * attention register to request HBA start processing new iocb.
3758 * If there is no slot available in the ring and
3759 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the
3760 * txq, otherwise the function returns IOCB_BUSY.
3761 *
3762 * This function is called with hbalock held.
3763 * The function will return success after it successfully submit the
3764 * iocb to firmware or after adding to the txq.
3765 **/
3013static int 3766static int
3014__lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 3767__lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3015 struct lpfc_iocbq *piocb, uint32_t flag) 3768 struct lpfc_iocbq *piocb, uint32_t flag)
@@ -3052,6 +3805,16 @@ __lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3052 * can be issued if the link is not up. 3805 * can be issued if the link is not up.
3053 */ 3806 */
3054 switch (piocb->iocb.ulpCommand) { 3807 switch (piocb->iocb.ulpCommand) {
3808 case CMD_GEN_REQUEST64_CR:
3809 case CMD_GEN_REQUEST64_CX:
3810 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
3811 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
3812 FC_FCP_CMND) ||
3813 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
3814 MENLO_TRANSPORT_TYPE))
3815
3816 goto iocb_busy;
3817 break;
3055 case CMD_QUE_RING_BUF_CN: 3818 case CMD_QUE_RING_BUF_CN:
3056 case CMD_QUE_RING_BUF64_CN: 3819 case CMD_QUE_RING_BUF64_CN:
3057 /* 3820 /*
@@ -3106,6 +3869,19 @@ __lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3106} 3869}
3107 3870
3108 3871
3872/**
3873 * lpfc_sli_issue_iocb: Wrapper function for __lpfc_sli_issue_iocb.
3874 * @phba: Pointer to HBA context object.
3875 * @pring: Pointer to driver SLI ring object.
3876 * @piocb: Pointer to command iocb.
3877 * @flag: Flag indicating if this command can be put into txq.
3878 *
3879 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
3880 * function. This function gets the hbalock and calls
3881 * __lpfc_sli_issue_iocb function and will return the error returned
3882 * by __lpfc_sli_issue_iocb function. This wrapper is used by
3883 * functions which do not hold hbalock.
3884 **/
3109int 3885int
3110lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 3886lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3111 struct lpfc_iocbq *piocb, uint32_t flag) 3887 struct lpfc_iocbq *piocb, uint32_t flag)
@@ -3120,6 +3896,17 @@ lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3120 return rc; 3896 return rc;
3121} 3897}
3122 3898
3899/**
3900 * lpfc_extra_ring_setup: Extra ring setup function.
3901 * @phba: Pointer to HBA context object.
3902 *
3903 * This function is called while driver attaches with the
3904 * HBA to setup the extra ring. The extra ring is used
3905 * only when driver needs to support target mode functionality
3906 * or IP over FC functionalities.
3907 *
3908 * This function is called with no lock held.
3909 **/
3123static int 3910static int
3124lpfc_extra_ring_setup( struct lpfc_hba *phba) 3911lpfc_extra_ring_setup( struct lpfc_hba *phba)
3125{ 3912{
@@ -3155,6 +3942,19 @@ lpfc_extra_ring_setup( struct lpfc_hba *phba)
3155 return 0; 3942 return 0;
3156} 3943}
3157 3944
3945/**
3946 * lpfc_sli_async_event_handler: ASYNC iocb handler function.
3947 * @phba: Pointer to HBA context object.
3948 * @pring: Pointer to driver SLI ring object.
3949 * @iocbq: Pointer to iocb object.
3950 *
3951 * This function is called by the slow ring event handler
3952 * function when there is an ASYNC event iocb in the ring.
3953 * This function is called with no lock held.
3954 * Currently this function handles only temperature related
3955 * ASYNC events. The function decodes the temperature sensor
3956 * event message and posts events for the management applications.
3957 **/
3158static void 3958static void
3159lpfc_sli_async_event_handler(struct lpfc_hba * phba, 3959lpfc_sli_async_event_handler(struct lpfc_hba * phba,
3160 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq) 3960 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
@@ -3210,6 +4010,17 @@ lpfc_sli_async_event_handler(struct lpfc_hba * phba,
3210} 4010}
3211 4011
3212 4012
4013/**
4014 * lpfc_sli_setup: SLI ring setup function.
4015 * @phba: Pointer to HBA context object.
4016 *
4017 * lpfc_sli_setup sets up rings of the SLI interface with
4018 * number of iocbs per ring and iotags. This function is
4019 * called while driver attach to the HBA and before the
4020 * interrupts are enabled. So there is no need for locking.
4021 *
4022 * This function always returns 0.
4023 **/
3213int 4024int
3214lpfc_sli_setup(struct lpfc_hba *phba) 4025lpfc_sli_setup(struct lpfc_hba *phba)
3215{ 4026{
@@ -3321,6 +4132,17 @@ lpfc_sli_setup(struct lpfc_hba *phba)
3321 return 0; 4132 return 0;
3322} 4133}
3323 4134
4135/**
4136 * lpfc_sli_queue_setup: Queue initialization function.
4137 * @phba: Pointer to HBA context object.
4138 *
4139 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
4140 * ring. This function also initializes ring indices of each ring.
4141 * This function is called during the initialization of the SLI
4142 * interface of an HBA.
4143 * This function is called with no lock held and always returns
4144 * 1.
4145 **/
3324int 4146int
3325lpfc_sli_queue_setup(struct lpfc_hba *phba) 4147lpfc_sli_queue_setup(struct lpfc_hba *phba)
3326{ 4148{
@@ -3349,6 +4171,23 @@ lpfc_sli_queue_setup(struct lpfc_hba *phba)
3349 return 1; 4171 return 1;
3350} 4172}
3351 4173
4174/**
4175 * lpfc_sli_host_down: Vport cleanup function.
4176 * @vport: Pointer to virtual port object.
4177 *
4178 * lpfc_sli_host_down is called to clean up the resources
4179 * associated with a vport before destroying virtual
4180 * port data structures.
4181 * This function does following operations:
4182 * - Free discovery resources associated with this virtual
4183 * port.
4184 * - Free iocbs associated with this virtual port in
4185 * the txq.
4186 * - Send abort for all iocb commands associated with this
4187 * vport in txcmplq.
4188 *
4189 * This function is called with no lock held and always returns 1.
4190 **/
3352int 4191int
3353lpfc_sli_host_down(struct lpfc_vport *vport) 4192lpfc_sli_host_down(struct lpfc_vport *vport)
3354{ 4193{
@@ -3411,6 +4250,21 @@ lpfc_sli_host_down(struct lpfc_vport *vport)
3411 return 1; 4250 return 1;
3412} 4251}
3413 4252
4253/**
4254 * lpfc_sli_hba_down: Resource cleanup function for the HBA.
4255 * @phba: Pointer to HBA context object.
4256 *
4257 * This function cleans up all iocb, buffers, mailbox commands
4258 * while shutting down the HBA. This function is called with no
4259 * lock held and always returns 1.
4260 * This function does the following to cleanup driver resources:
4261 * - Free discovery resources for each virtual port
4262 * - Cleanup any pending fabric iocbs
4263 * - Iterate through the iocb txq and free each entry
4264 * in the list.
4265 * - Free up any buffer posted to the HBA
4266 * - Free mailbox commands in the mailbox queue.
4267 **/
3414int 4268int
3415lpfc_sli_hba_down(struct lpfc_hba *phba) 4269lpfc_sli_hba_down(struct lpfc_hba *phba)
3416{ 4270{
@@ -3501,6 +4355,18 @@ lpfc_sli_hba_down(struct lpfc_hba *phba)
3501 return 1; 4355 return 1;
3502} 4356}
3503 4357
4358/**
4359 * lpfc_sli_pcimem_bcopy: SLI memory copy function.
4360 * @srcp: Source memory pointer.
4361 * @destp: Destination memory pointer.
4362 * @cnt: Number of words required to be copied.
4363 *
4364 * This function is used for copying data between driver memory
4365 * and the SLI memory. This function also changes the endianness
4366 * of each word if native endianness is different from SLI
4367 * endianness. This function can be called with or without
4368 * lock.
4369 **/
3504void 4370void
3505lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) 4371lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
3506{ 4372{
@@ -3518,6 +4384,17 @@ lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
3518 } 4384 }
3519} 4385}
3520 4386
4387
4388/**
4389 * lpfc_sli_ringpostbuf_put: Function to add a buffer to postbufq.
4390 * @phba: Pointer to HBA context object.
4391 * @pring: Pointer to driver SLI ring object.
4392 * @mp: Pointer to driver buffer object.
4393 *
4394 * This function is called with no lock held.
4395 * It always return zero after adding the buffer to the postbufq
4396 * buffer list.
4397 **/
3521int 4398int
3522lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 4399lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3523 struct lpfc_dmabuf *mp) 4400 struct lpfc_dmabuf *mp)
@@ -3531,6 +4408,18 @@ lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3531 return 0; 4408 return 0;
3532} 4409}
3533 4410
4411/**
4412 * lpfc_sli_get_buffer_tag: Tag allocation function for a buffer posted
4413 * using CMD_QUE_XRI64_CX iocb.
4414 * @phba: Pointer to HBA context object.
4415 *
4416 * When HBQ is enabled, buffers are searched based on tags. This function
4417 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
4418 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
4419 * does not conflict with tags of buffer posted for unsolicited events.
4420 * The function returns the allocated tag. The function is called with
4421 * no locks held.
4422 **/
3534uint32_t 4423uint32_t
3535lpfc_sli_get_buffer_tag(struct lpfc_hba *phba) 4424lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
3536{ 4425{
@@ -3545,6 +4434,22 @@ lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
3545 return phba->buffer_tag_count; 4434 return phba->buffer_tag_count;
3546} 4435}
3547 4436
4437/**
4438 * lpfc_sli_ring_taggedbuf_get: Search HBQ buffer associated with
4439 * posted using CMD_QUE_XRI64_CX iocb.
4440 * @phba: Pointer to HBA context object.
4441 * @pring: Pointer to driver SLI ring object.
4442 * @tag: Buffer tag.
4443 *
4444 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
4445 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
4446 * iocb is posted to the response ring with the tag of the buffer.
4447 * This function searches the pring->postbufq list using the tag
4448 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
4449 * iocb. If the buffer is found then lpfc_dmabuf object of the
4450 * buffer is returned to the caller else NULL is returned.
4451 * This function is called with no lock held.
4452 **/
3548struct lpfc_dmabuf * 4453struct lpfc_dmabuf *
3549lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 4454lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3550 uint32_t tag) 4455 uint32_t tag)
@@ -3565,7 +4470,7 @@ lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3565 4470
3566 spin_unlock_irq(&phba->hbalock); 4471 spin_unlock_irq(&phba->hbalock);
3567 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 4472 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3568 "0410 Cannot find virtual addr for buffer tag on " 4473 "0402 Cannot find virtual addr for buffer tag on "
3569 "ring %d Data x%lx x%p x%p x%x\n", 4474 "ring %d Data x%lx x%p x%p x%x\n",
3570 pring->ringno, (unsigned long) tag, 4475 pring->ringno, (unsigned long) tag,
3571 slp->next, slp->prev, pring->postbufq_cnt); 4476 slp->next, slp->prev, pring->postbufq_cnt);
@@ -3573,6 +4478,23 @@ lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3573 return NULL; 4478 return NULL;
3574} 4479}
3575 4480
4481/**
4482 * lpfc_sli_ringpostbuf_get: SLI2 buffer search function for
4483 * unsolicited ct and els events.
4484 * @phba: Pointer to HBA context object.
4485 * @pring: Pointer to driver SLI ring object.
4486 * @phys: DMA address of the buffer.
4487 *
4488 * This function searches the buffer list using the dma_address
4489 * of unsolicited event to find the driver's lpfc_dmabuf object
4490 * corresponding to the dma_address. The function returns the
4491 * lpfc_dmabuf object if a buffer is found else it returns NULL.
4492 * This function is called by the ct and els unsolicited event
4493 * handlers to get the buffer associated with the unsolicited
4494 * event.
4495 *
4496 * This function is called with no lock held.
4497 **/
3576struct lpfc_dmabuf * 4498struct lpfc_dmabuf *
3577lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 4499lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3578 dma_addr_t phys) 4500 dma_addr_t phys)
@@ -3600,6 +4522,17 @@ lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3600 return NULL; 4522 return NULL;
3601} 4523}
3602 4524
4525/**
4526 * lpfc_sli_abort_els_cmpl: Completion handler for the els abort iocbs.
4527 * @phba: Pointer to HBA context object.
4528 * @cmdiocb: Pointer to driver command iocb object.
4529 * @rspiocb: Pointer to driver response iocb object.
4530 *
4531 * This function is the completion handler for the abort iocbs for
4532 * ELS commands. This function is called from the ELS ring event
4533 * handler with no lock held. This function frees memory resources
4534 * associated with the abort iocb.
4535 **/
3603static void 4536static void
3604lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 4537lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3605 struct lpfc_iocbq *rspiocb) 4538 struct lpfc_iocbq *rspiocb)
@@ -3665,6 +4598,17 @@ lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3665 return; 4598 return;
3666} 4599}
3667 4600
4601/**
4602 * lpfc_ignore_els_cmpl: Completion handler for aborted ELS command.
4603 * @phba: Pointer to HBA context object.
4604 * @cmdiocb: Pointer to driver command iocb object.
4605 * @rspiocb: Pointer to driver response iocb object.
4606 *
4607 * The function is called from SLI ring event handler with no
4608 * lock held. This function is the completion handler for ELS commands
4609 * which are aborted. The function frees memory resources used for
4610 * the aborted ELS commands.
4611 **/
3668static void 4612static void
3669lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 4613lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3670 struct lpfc_iocbq *rspiocb) 4614 struct lpfc_iocbq *rspiocb)
@@ -3673,7 +4617,7 @@ lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3673 4617
3674 /* ELS cmd tag <ulpIoTag> completes */ 4618 /* ELS cmd tag <ulpIoTag> completes */
3675 lpfc_printf_log(phba, KERN_INFO, LOG_ELS, 4619 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
3676 "0133 Ignoring ELS cmd tag x%x completion Data: " 4620 "0139 Ignoring ELS cmd tag x%x completion Data: "
3677 "x%x x%x x%x\n", 4621 "x%x x%x x%x\n",
3678 irsp->ulpIoTag, irsp->ulpStatus, 4622 irsp->ulpIoTag, irsp->ulpStatus,
3679 irsp->un.ulpWord[4], irsp->ulpTimeout); 4623 irsp->un.ulpWord[4], irsp->ulpTimeout);
@@ -3684,6 +4628,17 @@ lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3684 return; 4628 return;
3685} 4629}
3686 4630
4631/**
4632 * lpfc_sli_issue_abort_iotag: Abort function for a command iocb.
4633 * @phba: Pointer to HBA context object.
4634 * @pring: Pointer to driver SLI ring object.
4635 * @cmdiocb: Pointer to driver command iocb object.
4636 *
4637 * This function issues an abort iocb for the provided command
4638 * iocb. This function is called with hbalock held.
4639 * The function returns 0 when it fails due to memory allocation
4640 * failure or when the command iocb is an abort request.
4641 **/
3687int 4642int
3688lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, 4643lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3689 struct lpfc_iocbq *cmdiocb) 4644 struct lpfc_iocbq *cmdiocb)
@@ -3748,6 +4703,8 @@ lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3748 iabt->un.acxri.abortIoTag, abtsiocbp->iotag); 4703 iabt->un.acxri.abortIoTag, abtsiocbp->iotag);
3749 retval = __lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0); 4704 retval = __lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0);
3750 4705
4706 if (retval)
4707 __lpfc_sli_release_iocbq(phba, abtsiocbp);
3751abort_iotag_exit: 4708abort_iotag_exit:
3752 /* 4709 /*
3753 * Caller to this routine should check for IOCB_ERROR 4710 * Caller to this routine should check for IOCB_ERROR
@@ -3757,6 +4714,29 @@ abort_iotag_exit:
3757 return retval; 4714 return retval;
3758} 4715}
3759 4716
4717/**
4718 * lpfc_sli_validate_fcp_iocb: Filtering function, used to find commands
4719 * associated with a vport/SCSI target/lun.
4720 * @iocbq: Pointer to driver iocb object.
4721 * @vport: Pointer to driver virtual port object.
4722 * @tgt_id: SCSI ID of the target.
4723 * @lun_id: LUN ID of the scsi device.
4724 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
4725 *
4726 * This function acts as iocb filter for functions which abort or count
4727 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
4728 * 0 if the filtering criteria is met for the given iocb and will return
4729 * 1 if the filtering criteria is not met.
4730 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
4731 * given iocb is for the SCSI device specified by vport, tgt_id and
4732 * lun_id parameter.
4733 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
4734 * given iocb is for the SCSI target specified by vport and tgt_id
4735 * parameters.
4736 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
4737 * given iocb is for the SCSI host associated with the given vport.
4738 * This function is called with no locks held.
4739 **/
3760static int 4740static int
3761lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport, 4741lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
3762 uint16_t tgt_id, uint64_t lun_id, 4742 uint16_t tgt_id, uint64_t lun_id,
@@ -3800,6 +4780,25 @@ lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
3800 return rc; 4780 return rc;
3801} 4781}
3802 4782
4783/**
4784 * lpfc_sli_sum_iocb: Function to count the number of FCP iocbs pending.
4785 * @vport: Pointer to virtual port.
4786 * @tgt_id: SCSI ID of the target.
4787 * @lun_id: LUN ID of the scsi device.
4788 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
4789 *
4790 * This function returns number of FCP commands pending for the vport.
4791 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
4792 * commands pending on the vport associated with SCSI device specified
4793 * by tgt_id and lun_id parameters.
4794 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
4795 * commands pending on the vport associated with SCSI target specified
4796 * by tgt_id parameter.
4797 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
4798 * commands pending on the vport.
4799 * This function returns the number of iocbs which satisfy the filter.
4800 * This function is called without any lock held.
4801 **/
3803int 4802int
3804lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id, 4803lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
3805 lpfc_ctx_cmd ctx_cmd) 4804 lpfc_ctx_cmd ctx_cmd)
@@ -3819,6 +4818,17 @@ lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
3819 return sum; 4818 return sum;
3820} 4819}
3821 4820
4821/**
4822 * lpfc_sli_abort_fcp_cmpl: Completion handler function for an aborted
4823 * FCP iocb.
4824 * @phba: Pointer to HBA context object
4825 * @cmdiocb: Pointer to command iocb object.
4826 * @rspiocb: Pointer to response iocb object.
4827 *
4828 * This function is called when an aborted FCP iocb completes. This
4829 * function is called by the ring event handler with no lock held.
4830 * This function frees the iocb.
4831 **/
3822void 4832void
3823lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, 4833lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3824 struct lpfc_iocbq *rspiocb) 4834 struct lpfc_iocbq *rspiocb)
@@ -3827,6 +4837,28 @@ lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3827 return; 4837 return;
3828} 4838}
3829 4839
4840/**
4841 * lpfc_sli_abort_iocb: This function issue abort for all SCSI commands
4842 * pending on a SCSI host(vport)/target/lun.
4843 * @vport: Pointer to virtual port.
4844 * @pring: Pointer to driver SLI ring object.
4845 * @tgt_id: SCSI ID of the target.
4846 * @lun_id: LUN ID of the scsi device.
4847 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
4848 *
4849 * This function sends an abort command for every SCSI command
4850 * associated with the given virtual port pending on the ring
4851 * filtered by lpfc_sli_validate_fcp_iocb function.
4852 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
4853 * FCP iocbs associated with lun specified by tgt_id and lun_id
4854 * parameters
4855 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
4856 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
4857 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
4858 * FCP iocbs associated with virtual port.
4859 * This function returns number of iocbs it failed to abort.
4860 * This function is called with no locks held.
4861 **/
3830int 4862int
3831lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring, 4863lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
3832 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd) 4864 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
@@ -3878,6 +4910,24 @@ lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
3878 return errcnt; 4910 return errcnt;
3879} 4911}
3880 4912
4913/**
4914 * lpfc_sli_wake_iocb_wait: iocb completion handler for iocb issued using
4915 * lpfc_sli_issue_iocb_wait.
4916 * @phba: Pointer to HBA context object.
4917 * @cmdiocbq: Pointer to command iocb.
4918 * @rspiocbq: Pointer to response iocb.
4919 *
4920 * This function is the completion handler for iocbs issued using
4921 * lpfc_sli_issue_iocb_wait function. This function is called by the
4922 * ring event handler function without any lock held. This function
4923 * can be called from both worker thread context and interrupt
4924 * context. This function also can be called from other thread which
4925 * cleans up the SLI layer objects.
4926 * This function copy the contents of the response iocb to the
4927 * response iocb memory object provided by the caller of
4928 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
4929 * sleeps for the iocb completion.
4930 **/
3881static void 4931static void
3882lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba, 4932lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
3883 struct lpfc_iocbq *cmdiocbq, 4933 struct lpfc_iocbq *cmdiocbq,
@@ -3899,13 +4949,36 @@ lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
3899 return; 4949 return;
3900} 4950}
3901 4951
3902/* 4952/**
3903 * Issue the caller's iocb and wait for its completion, but no longer than the 4953 * lpfc_sli_issue_iocb_wait: Synchronous function to issue iocb commands.
3904 * caller's timeout. Note that iocb_flags is cleared before the 4954 * @phba: Pointer to HBA context object..
3905 * lpfc_sli_issue_call since the wake routine sets a unique value and by 4955 * @pring: Pointer to sli ring.
3906 * definition this is a wait function. 4956 * @piocb: Pointer to command iocb.
3907 */ 4957 * @prspiocbq: Pointer to response iocb.
3908 4958 * @timeout: Timeout in number of seconds.
4959 *
4960 * This function issues the iocb to firmware and waits for the
4961 * iocb to complete. If the iocb command is not
4962 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
4963 * Caller should not free the iocb resources if this function
4964 * returns IOCB_TIMEDOUT.
4965 * The function waits for the iocb completion using an
4966 * non-interruptible wait.
4967 * This function will sleep while waiting for iocb completion.
4968 * So, this function should not be called from any context which
4969 * does not allow sleeping. Due to the same reason, this function
4970 * cannot be called with interrupt disabled.
4971 * This function assumes that the iocb completions occur while
4972 * this function sleep. So, this function cannot be called from
4973 * the thread which process iocb completion for this ring.
4974 * This function clears the iocb_flag of the iocb object before
4975 * issuing the iocb and the iocb completion handler sets this
4976 * flag and wakes this thread when the iocb completes.
4977 * The contents of the response iocb will be copied to prspiocbq
4978 * by the completion handler when the command completes.
4979 * This function returns IOCB_SUCCESS when success.
4980 * This function is called with no lock held.
4981 **/
3909int 4982int
3910lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba, 4983lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
3911 struct lpfc_sli_ring *pring, 4984 struct lpfc_sli_ring *pring,
@@ -3963,7 +5036,7 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
3963 } 5036 }
3964 } else { 5037 } else {
3965 lpfc_printf_log(phba, KERN_INFO, LOG_SLI, 5038 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3966 ":0332 IOCB wait issue failed, Data x%x\n", 5039 "0332 IOCB wait issue failed, Data x%x\n",
3967 retval); 5040 retval);
3968 retval = IOCB_ERROR; 5041 retval = IOCB_ERROR;
3969 } 5042 }
@@ -3983,6 +5056,32 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
3983 return retval; 5056 return retval;
3984} 5057}
3985 5058
5059/**
5060 * lpfc_sli_issue_mbox_wait: Synchronous function to issue mailbox.
5061 * @phba: Pointer to HBA context object.
5062 * @pmboxq: Pointer to driver mailbox object.
5063 * @timeout: Timeout in number of seconds.
5064 *
5065 * This function issues the mailbox to firmware and waits for the
5066 * mailbox command to complete. If the mailbox command is not
5067 * completed within timeout seconds, it returns MBX_TIMEOUT.
5068 * The function waits for the mailbox completion using an
5069 * interruptible wait. If the thread is woken up due to a
5070 * signal, MBX_TIMEOUT error is returned to the caller. Caller
5071 * should not free the mailbox resources, if this function returns
5072 * MBX_TIMEOUT.
5073 * This function will sleep while waiting for mailbox completion.
5074 * So, this function should not be called from any context which
5075 * does not allow sleeping. Due to the same reason, this function
5076 * cannot be called with interrupt disabled.
5077 * This function assumes that the mailbox completion occurs while
5078 * this function sleep. So, this function cannot be called from
5079 * the worker thread which processes mailbox completion.
5080 * This function is called in the context of HBA management
5081 * applications.
5082 * This function returns MBX_SUCCESS when successful.
5083 * This function is called with no lock held.
5084 **/
3986int 5085int
3987lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq, 5086lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
3988 uint32_t timeout) 5087 uint32_t timeout)
@@ -4027,6 +5126,18 @@ lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
4027 return retval; 5126 return retval;
4028} 5127}
4029 5128
5129/**
5130 * lpfc_sli_flush_mbox_queue: mailbox queue cleanup function.
5131 * @phba: Pointer to HBA context.
5132 *
5133 * This function is called to cleanup any pending mailbox
5134 * objects in the driver queue before bringing the HBA offline.
5135 * This function is called while resetting the HBA.
5136 * The function is called without any lock held. The function
5137 * takes hbalock to update SLI data structure.
5138 * This function returns 1 when there is an active mailbox
5139 * command pending else returns 0.
5140 **/
4030int 5141int
4031lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba) 5142lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba)
4032{ 5143{
@@ -4058,8 +5169,74 @@ lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba)
4058 return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0; 5169 return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0;
4059} 5170}
4060 5171
5172/**
5173 * lpfc_sli_check_eratt: check error attention events
5174 * @phba: Pointer to HBA context.
5175 *
5176 * This function is called form timer soft interrupt context to check HBA's
5177 * error attention register bit for error attention events.
5178 *
5179 * This fucntion returns 1 when there is Error Attention in the Host Attention
5180 * Register and returns 0 otherwise.
5181 **/
5182int
5183lpfc_sli_check_eratt(struct lpfc_hba *phba)
5184{
5185 uint32_t ha_copy;
5186
5187 /* If somebody is waiting to handle an eratt, don't process it
5188 * here. The brdkill function will do this.
5189 */
5190 if (phba->link_flag & LS_IGNORE_ERATT)
5191 return 0;
5192
5193 /* Check if interrupt handler handles this ERATT */
5194 spin_lock_irq(&phba->hbalock);
5195 if (phba->hba_flag & HBA_ERATT_HANDLED) {
5196 /* Interrupt handler has handled ERATT */
5197 spin_unlock_irq(&phba->hbalock);
5198 return 0;
5199 }
5200
5201 /* Read chip Host Attention (HA) register */
5202 ha_copy = readl(phba->HAregaddr);
5203 if (ha_copy & HA_ERATT) {
5204 /* Read host status register to retrieve error event */
5205 lpfc_sli_read_hs(phba);
5206 /* Set the driver HA work bitmap */
5207 phba->work_ha |= HA_ERATT;
5208 /* Indicate polling handles this ERATT */
5209 phba->hba_flag |= HBA_ERATT_HANDLED;
5210 spin_unlock_irq(&phba->hbalock);
5211 return 1;
5212 }
5213 spin_unlock_irq(&phba->hbalock);
5214 return 0;
5215}
5216
5217/**
5218 * lpfc_sp_intr_handler: The slow-path interrupt handler of lpfc driver.
5219 * @irq: Interrupt number.
5220 * @dev_id: The device context pointer.
5221 *
5222 * This function is directly called from the PCI layer as an interrupt
5223 * service routine when the device is enabled with MSI-X multi-message
5224 * interrupt mode and there are slow-path events in the HBA. However,
5225 * when the device is enabled with either MSI or Pin-IRQ interrupt mode,
5226 * this function is called as part of the device-level interrupt handler.
5227 * When the PCI slot is in error recovery or the HBA is undergoing
5228 * initialization, the interrupt handler will not process the interrupt.
5229 * The link attention and ELS ring attention events are handled by the
5230 * worker thread. The interrupt handler signals the worker thread and
5231 * and returns for these events. This function is called without any
5232 * lock held. It gets the hbalock to access and update SLI data
5233 * structures.
5234 *
5235 * This function returns IRQ_HANDLED when interrupt is handled else it
5236 * returns IRQ_NONE.
5237 **/
4061irqreturn_t 5238irqreturn_t
4062lpfc_intr_handler(int irq, void *dev_id) 5239lpfc_sp_intr_handler(int irq, void *dev_id)
4063{ 5240{
4064 struct lpfc_hba *phba; 5241 struct lpfc_hba *phba;
4065 uint32_t ha_copy; 5242 uint32_t ha_copy;
@@ -4078,48 +5255,52 @@ lpfc_intr_handler(int irq, void *dev_id)
4078 * Get the driver's phba structure from the dev_id and 5255 * Get the driver's phba structure from the dev_id and
4079 * assume the HBA is not interrupting. 5256 * assume the HBA is not interrupting.
4080 */ 5257 */
4081 phba = (struct lpfc_hba *) dev_id; 5258 phba = (struct lpfc_hba *)dev_id;
4082 5259
4083 if (unlikely(!phba)) 5260 if (unlikely(!phba))
4084 return IRQ_NONE; 5261 return IRQ_NONE;
4085 5262
4086 /* If the pci channel is offline, ignore all the interrupts. */
4087 if (unlikely(pci_channel_offline(phba->pcidev)))
4088 return IRQ_NONE;
4089
4090 phba->sli.slistat.sli_intr++;
4091
4092 /* 5263 /*
4093 * Call the HBA to see if it is interrupting. If not, don't claim 5264 * Stuff needs to be attented to when this function is invoked as an
4094 * the interrupt 5265 * individual interrupt handler in MSI-X multi-message interrupt mode
4095 */
4096
4097 /* Ignore all interrupts during initialization. */
4098 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
4099 return IRQ_NONE;
4100
4101 /*
4102 * Read host attention register to determine interrupt source
4103 * Clear Attention Sources, except Error Attention (to
4104 * preserve status) and Link Attention
4105 */
4106 spin_lock(&phba->hbalock);
4107 ha_copy = readl(phba->HAregaddr);
4108 /* If somebody is waiting to handle an eratt don't process it
4109 * here. The brdkill function will do this.
4110 */ 5266 */
4111 if (phba->link_flag & LS_IGNORE_ERATT) 5267 if (phba->intr_type == MSIX) {
4112 ha_copy &= ~HA_ERATT; 5268 /* If the pci channel is offline, ignore all the interrupts */
4113 writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); 5269 if (unlikely(pci_channel_offline(phba->pcidev)))
4114 readl(phba->HAregaddr); /* flush */ 5270 return IRQ_NONE;
4115 spin_unlock(&phba->hbalock); 5271 /* Update device-level interrupt statistics */
4116 5272 phba->sli.slistat.sli_intr++;
4117 if (unlikely(!ha_copy)) 5273 /* Ignore all interrupts during initialization. */
4118 return IRQ_NONE; 5274 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
5275 return IRQ_NONE;
5276 /* Need to read HA REG for slow-path events */
5277 spin_lock(&phba->hbalock);
5278 ha_copy = readl(phba->HAregaddr);
5279 /* If somebody is waiting to handle an eratt don't process it
5280 * here. The brdkill function will do this.
5281 */
5282 if (phba->link_flag & LS_IGNORE_ERATT)
5283 ha_copy &= ~HA_ERATT;
5284 /* Check the need for handling ERATT in interrupt handler */
5285 if (ha_copy & HA_ERATT) {
5286 if (phba->hba_flag & HBA_ERATT_HANDLED)
5287 /* ERATT polling has handled ERATT */
5288 ha_copy &= ~HA_ERATT;
5289 else
5290 /* Indicate interrupt handler handles ERATT */
5291 phba->hba_flag |= HBA_ERATT_HANDLED;
5292 }
5293 /* Clear up only attention source related to slow-path */
5294 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
5295 phba->HAregaddr);
5296 readl(phba->HAregaddr); /* flush */
5297 spin_unlock(&phba->hbalock);
5298 } else
5299 ha_copy = phba->ha_copy;
4119 5300
4120 work_ha_copy = ha_copy & phba->work_ha_mask; 5301 work_ha_copy = ha_copy & phba->work_ha_mask;
4121 5302
4122 if (unlikely(work_ha_copy)) { 5303 if (work_ha_copy) {
4123 if (work_ha_copy & HA_LATT) { 5304 if (work_ha_copy & HA_LATT) {
4124 if (phba->sli.sli_flag & LPFC_PROCESS_LA) { 5305 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
4125 /* 5306 /*
@@ -4138,7 +5319,7 @@ lpfc_intr_handler(int irq, void *dev_id)
4138 work_ha_copy &= ~HA_LATT; 5319 work_ha_copy &= ~HA_LATT;
4139 } 5320 }
4140 5321
4141 if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) { 5322 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
4142 /* 5323 /*
4143 * Turn off Slow Rings interrupts, LPFC_ELS_RING is 5324 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
4144 * the only slow ring. 5325 * the only slow ring.
@@ -4179,31 +5360,13 @@ lpfc_intr_handler(int irq, void *dev_id)
4179 spin_unlock(&phba->hbalock); 5360 spin_unlock(&phba->hbalock);
4180 } 5361 }
4181 } 5362 }
4182
4183 if (work_ha_copy & HA_ERATT) {
4184 /*
4185 * There was a link/board error. Read the
4186 * status register to retrieve the error event
4187 * and process it.
4188 */
4189 phba->sli.slistat.err_attn_event++;
4190 /* Save status info */
4191 phba->work_hs = readl(phba->HSregaddr);
4192 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
4193 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
4194
4195 /* Clear Chip error bit */
4196 writel(HA_ERATT, phba->HAregaddr);
4197 readl(phba->HAregaddr); /* flush */
4198 phba->pport->stopped = 1;
4199 }
4200
4201 spin_lock(&phba->hbalock); 5363 spin_lock(&phba->hbalock);
4202 if ((work_ha_copy & HA_MBATT) && 5364 if (work_ha_copy & HA_ERATT)
4203 (phba->sli.mbox_active)) { 5365 lpfc_sli_read_hs(phba);
5366 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
4204 pmb = phba->sli.mbox_active; 5367 pmb = phba->sli.mbox_active;
4205 pmbox = &pmb->mb; 5368 pmbox = &pmb->mb;
4206 mbox = &phba->slim2p->mbx; 5369 mbox = phba->mbox;
4207 vport = pmb->vport; 5370 vport = pmb->vport;
4208 5371
4209 /* First check out the status word */ 5372 /* First check out the status word */
@@ -4270,7 +5433,7 @@ lpfc_intr_handler(int irq, void *dev_id)
4270 lpfc_printf_log(phba, 5433 lpfc_printf_log(phba,
4271 KERN_ERR, 5434 KERN_ERR,
4272 LOG_MBOX | LOG_SLI, 5435 LOG_MBOX | LOG_SLI,
4273 "0306 rc should have" 5436 "0350 rc should have"
4274 "been MBX_BUSY"); 5437 "been MBX_BUSY");
4275 goto send_current_mbox; 5438 goto send_current_mbox;
4276 } 5439 }
@@ -4283,6 +5446,7 @@ lpfc_intr_handler(int irq, void *dev_id)
4283 } 5446 }
4284 } else 5447 } else
4285 spin_unlock(&phba->hbalock); 5448 spin_unlock(&phba->hbalock);
5449
4286 if ((work_ha_copy & HA_MBATT) && 5450 if ((work_ha_copy & HA_MBATT) &&
4287 (phba->sli.mbox_active == NULL)) { 5451 (phba->sli.mbox_active == NULL)) {
4288send_current_mbox: 5452send_current_mbox:
@@ -4302,15 +5466,74 @@ send_current_mbox:
4302 spin_unlock(&phba->hbalock); 5466 spin_unlock(&phba->hbalock);
4303 lpfc_worker_wake_up(phba); 5467 lpfc_worker_wake_up(phba);
4304 } 5468 }
5469 return IRQ_HANDLED;
4305 5470
4306 ha_copy &= ~(phba->work_ha_mask); 5471} /* lpfc_sp_intr_handler */
5472
5473/**
5474 * lpfc_fp_intr_handler: The fast-path interrupt handler of lpfc driver.
5475 * @irq: Interrupt number.
5476 * @dev_id: The device context pointer.
5477 *
5478 * This function is directly called from the PCI layer as an interrupt
5479 * service routine when the device is enabled with MSI-X multi-message
5480 * interrupt mode and there is a fast-path FCP IOCB ring event in the
5481 * HBA. However, when the device is enabled with either MSI or Pin-IRQ
5482 * interrupt mode, this function is called as part of the device-level
5483 * interrupt handler. When the PCI slot is in error recovery or the HBA
5484 * is undergoing initialization, the interrupt handler will not process
5485 * the interrupt. The SCSI FCP fast-path ring event are handled in the
5486 * intrrupt context. This function is called without any lock held. It
5487 * gets the hbalock to access and update SLI data structures.
5488 *
5489 * This function returns IRQ_HANDLED when interrupt is handled else it
5490 * returns IRQ_NONE.
5491 **/
5492irqreturn_t
5493lpfc_fp_intr_handler(int irq, void *dev_id)
5494{
5495 struct lpfc_hba *phba;
5496 uint32_t ha_copy;
5497 unsigned long status;
5498
5499 /* Get the driver's phba structure from the dev_id and
5500 * assume the HBA is not interrupting.
5501 */
5502 phba = (struct lpfc_hba *) dev_id;
5503
5504 if (unlikely(!phba))
5505 return IRQ_NONE;
5506
5507 /*
5508 * Stuff needs to be attented to when this function is invoked as an
5509 * individual interrupt handler in MSI-X multi-message interrupt mode
5510 */
5511 if (phba->intr_type == MSIX) {
5512 /* If pci channel is offline, ignore all the interrupts */
5513 if (unlikely(pci_channel_offline(phba->pcidev)))
5514 return IRQ_NONE;
5515 /* Update device-level interrupt statistics */
5516 phba->sli.slistat.sli_intr++;
5517 /* Ignore all interrupts during initialization. */
5518 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
5519 return IRQ_NONE;
5520 /* Need to read HA REG for FCP ring and other ring events */
5521 ha_copy = readl(phba->HAregaddr);
5522 /* Clear up only attention source related to fast-path */
5523 spin_lock(&phba->hbalock);
5524 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
5525 phba->HAregaddr);
5526 readl(phba->HAregaddr); /* flush */
5527 spin_unlock(&phba->hbalock);
5528 } else
5529 ha_copy = phba->ha_copy;
4307 5530
4308 /* 5531 /*
4309 * Process all events on FCP ring. Take the optimized path for 5532 * Process all events on FCP ring. Take the optimized path for FCP IO.
4310 * FCP IO. Any other IO is slow path and is handled by
4311 * the worker thread.
4312 */ 5533 */
4313 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); 5534 ha_copy &= ~(phba->work_ha_mask);
5535
5536 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
4314 status >>= (4*LPFC_FCP_RING); 5537 status >>= (4*LPFC_FCP_RING);
4315 if (status & HA_RXMASK) 5538 if (status & HA_RXMASK)
4316 lpfc_sli_handle_fast_ring_event(phba, 5539 lpfc_sli_handle_fast_ring_event(phba,
@@ -4319,11 +5542,10 @@ send_current_mbox:
4319 5542
4320 if (phba->cfg_multi_ring_support == 2) { 5543 if (phba->cfg_multi_ring_support == 2) {
4321 /* 5544 /*
4322 * Process all events on extra ring. Take the optimized path 5545 * Process all events on extra ring. Take the optimized path
4323 * for extra ring IO. Any other IO is slow path and is handled 5546 * for extra ring IO.
4324 * by the worker thread.
4325 */ 5547 */
4326 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING))); 5548 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
4327 status >>= (4*LPFC_EXTRA_RING); 5549 status >>= (4*LPFC_EXTRA_RING);
4328 if (status & HA_RXMASK) { 5550 if (status & HA_RXMASK) {
4329 lpfc_sli_handle_fast_ring_event(phba, 5551 lpfc_sli_handle_fast_ring_event(phba,
@@ -4332,5 +5554,106 @@ send_current_mbox:
4332 } 5554 }
4333 } 5555 }
4334 return IRQ_HANDLED; 5556 return IRQ_HANDLED;
5557} /* lpfc_fp_intr_handler */
5558
5559/**
5560 * lpfc_intr_handler: The device-level interrupt handler of lpfc driver.
5561 * @irq: Interrupt number.
5562 * @dev_id: The device context pointer.
5563 *
5564 * This function is the device-level interrupt handler called from the PCI
5565 * layer when either MSI or Pin-IRQ interrupt mode is enabled and there is
5566 * an event in the HBA which requires driver attention. This function
5567 * invokes the slow-path interrupt attention handling function and fast-path
5568 * interrupt attention handling function in turn to process the relevant
5569 * HBA attention events. This function is called without any lock held. It
5570 * gets the hbalock to access and update SLI data structures.
5571 *
5572 * This function returns IRQ_HANDLED when interrupt is handled, else it
5573 * returns IRQ_NONE.
5574 **/
5575irqreturn_t
5576lpfc_intr_handler(int irq, void *dev_id)
5577{
5578 struct lpfc_hba *phba;
5579 irqreturn_t sp_irq_rc, fp_irq_rc;
5580 unsigned long status1, status2;
5581
5582 /*
5583 * Get the driver's phba structure from the dev_id and
5584 * assume the HBA is not interrupting.
5585 */
5586 phba = (struct lpfc_hba *) dev_id;
5587
5588 if (unlikely(!phba))
5589 return IRQ_NONE;
5590
5591 /* If the pci channel is offline, ignore all the interrupts. */
5592 if (unlikely(pci_channel_offline(phba->pcidev)))
5593 return IRQ_NONE;
5594
5595 /* Update device level interrupt statistics */
5596 phba->sli.slistat.sli_intr++;
5597
5598 /* Ignore all interrupts during initialization. */
5599 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
5600 return IRQ_NONE;
5601
5602 spin_lock(&phba->hbalock);
5603 phba->ha_copy = readl(phba->HAregaddr);
5604 if (unlikely(!phba->ha_copy)) {
5605 spin_unlock(&phba->hbalock);
5606 return IRQ_NONE;
5607 } else if (phba->ha_copy & HA_ERATT) {
5608 if (phba->hba_flag & HBA_ERATT_HANDLED)
5609 /* ERATT polling has handled ERATT */
5610 phba->ha_copy &= ~HA_ERATT;
5611 else
5612 /* Indicate interrupt handler handles ERATT */
5613 phba->hba_flag |= HBA_ERATT_HANDLED;
5614 }
5615
5616 /* Clear attention sources except link and error attentions */
5617 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
5618 readl(phba->HAregaddr); /* flush */
5619 spin_unlock(&phba->hbalock);
5620
5621 /*
5622 * Invokes slow-path host attention interrupt handling as appropriate.
5623 */
5624
5625 /* status of events with mailbox and link attention */
5626 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
5627
5628 /* status of events with ELS ring */
5629 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
5630 status2 >>= (4*LPFC_ELS_RING);
5631
5632 if (status1 || (status2 & HA_RXMASK))
5633 sp_irq_rc = lpfc_sp_intr_handler(irq, dev_id);
5634 else
5635 sp_irq_rc = IRQ_NONE;
5636
5637 /*
5638 * Invoke fast-path host attention interrupt handling as appropriate.
5639 */
5640
5641 /* status of events with FCP ring */
5642 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
5643 status1 >>= (4*LPFC_FCP_RING);
5644
5645 /* status of events with extra ring */
5646 if (phba->cfg_multi_ring_support == 2) {
5647 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
5648 status2 >>= (4*LPFC_EXTRA_RING);
5649 } else
5650 status2 = 0;
5651
5652 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
5653 fp_irq_rc = lpfc_fp_intr_handler(irq, dev_id);
5654 else
5655 fp_irq_rc = IRQ_NONE;
4335 5656
4336} /* lpfc_intr_handler */ 5657 /* Return device-level interrupt handling status */
5658 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
5659} /* lpfc_intr_handler */
diff --git a/drivers/scsi/lpfc/lpfc_sli.h b/drivers/scsi/lpfc/lpfc_sli.h
index 7249fd252cbb..883938652a6a 100644
--- a/drivers/scsi/lpfc/lpfc_sli.h
+++ b/drivers/scsi/lpfc/lpfc_sli.h
@@ -233,6 +233,7 @@ struct lpfc_sli {
233#define LPFC_SLI2_ACTIVE 0x200 /* SLI2 overlay in firmware is active */ 233#define LPFC_SLI2_ACTIVE 0x200 /* SLI2 overlay in firmware is active */
234#define LPFC_PROCESS_LA 0x400 /* Able to process link attention */ 234#define LPFC_PROCESS_LA 0x400 /* Able to process link attention */
235#define LPFC_BLOCK_MGMT_IO 0x800 /* Don't allow mgmt mbx or iocb cmds */ 235#define LPFC_BLOCK_MGMT_IO 0x800 /* Don't allow mgmt mbx or iocb cmds */
236#define LPFC_MENLO_MAINT 0x1000 /* need for menl fw download */
236 237
237 struct lpfc_sli_ring ring[LPFC_MAX_RING]; 238 struct lpfc_sli_ring ring[LPFC_MAX_RING];
238 int fcp_ring; /* ring used for FCP initiator commands */ 239 int fcp_ring; /* ring used for FCP initiator commands */
diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index ad24cacfbe10..cc43e9de22cc 100644
--- a/drivers/scsi/lpfc/lpfc_version.h
+++ b/drivers/scsi/lpfc/lpfc_version.h
@@ -18,9 +18,11 @@
18 * included with this package. * 18 * included with this package. *
19 *******************************************************************/ 19 *******************************************************************/
20 20
21#define LPFC_DRIVER_VERSION "8.2.7" 21#define LPFC_DRIVER_VERSION "8.2.8"
22 22
23#define LPFC_DRIVER_NAME "lpfc" 23#define LPFC_DRIVER_NAME "lpfc"
24#define LPFC_SP_DRIVER_HANDLER_NAME "lpfc:sp"
25#define LPFC_FP_DRIVER_HANDLER_NAME "lpfc:fp"
24 26
25#define LPFC_MODULE_DESC "Emulex LightPulse Fibre Channel SCSI driver " \ 27#define LPFC_MODULE_DESC "Emulex LightPulse Fibre Channel SCSI driver " \
26 LPFC_DRIVER_VERSION 28 LPFC_DRIVER_VERSION
diff --git a/drivers/scsi/lpfc/lpfc_vport.c b/drivers/scsi/lpfc/lpfc_vport.c
index 109f89d98830..a7de1cc02b40 100644
--- a/drivers/scsi/lpfc/lpfc_vport.c
+++ b/drivers/scsi/lpfc/lpfc_vport.c
@@ -34,6 +34,7 @@
34#include <scsi/scsi_transport_fc.h> 34#include <scsi/scsi_transport_fc.h>
35#include "lpfc_hw.h" 35#include "lpfc_hw.h"
36#include "lpfc_sli.h" 36#include "lpfc_sli.h"
37#include "lpfc_nl.h"
37#include "lpfc_disc.h" 38#include "lpfc_disc.h"
38#include "lpfc_scsi.h" 39#include "lpfc_scsi.h"
39#include "lpfc.h" 40#include "lpfc.h"
@@ -204,6 +205,77 @@ lpfc_unique_wwpn(struct lpfc_hba *phba, struct lpfc_vport *new_vport)
204 return 1; 205 return 1;
205} 206}
206 207
208/**
209 * lpfc_discovery_wait: Wait for driver discovery to quiesce.
210 * @vport: The virtual port for which this call is being executed.
211 *
212 * This driver calls this routine specifically from lpfc_vport_delete
213 * to enforce a synchronous execution of vport
214 * delete relative to discovery activities. The
215 * lpfc_vport_delete routine should not return until it
216 * can reasonably guarantee that discovery has quiesced.
217 * Post FDISC LOGO, the driver must wait until its SAN teardown is
218 * complete and all resources recovered before allowing
219 * cleanup.
220 *
221 * This routine does not require any locks held.
222 **/
223static void lpfc_discovery_wait(struct lpfc_vport *vport)
224{
225 struct lpfc_hba *phba = vport->phba;
226 uint32_t wait_flags = 0;
227 unsigned long wait_time_max;
228 unsigned long start_time;
229
230 wait_flags = FC_RSCN_MODE | FC_RSCN_DISCOVERY | FC_NLP_MORE |
231 FC_RSCN_DEFERRED | FC_NDISC_ACTIVE | FC_DISC_TMO;
232
233 /*
234 * The time constraint on this loop is a balance between the
235 * fabric RA_TOV value and dev_loss tmo. The driver's
236 * devloss_tmo is 10 giving this loop a 3x multiplier minimally.
237 */
238 wait_time_max = msecs_to_jiffies(((phba->fc_ratov * 3) + 3) * 1000);
239 wait_time_max += jiffies;
240 start_time = jiffies;
241 while (time_before(jiffies, wait_time_max)) {
242 if ((vport->num_disc_nodes > 0) ||
243 (vport->fc_flag & wait_flags) ||
244 ((vport->port_state > LPFC_VPORT_FAILED) &&
245 (vport->port_state < LPFC_VPORT_READY))) {
246 lpfc_printf_log(phba, KERN_INFO, LOG_VPORT,
247 "1833 Vport discovery quiesce Wait:"
248 " vpi x%x state x%x fc_flags x%x"
249 " num_nodes x%x, waiting 1000 msecs"
250 " total wait msecs x%x\n",
251 vport->vpi, vport->port_state,
252 vport->fc_flag, vport->num_disc_nodes,
253 jiffies_to_msecs(jiffies - start_time));
254 msleep(1000);
255 } else {
256 /* Base case. Wait variants satisfied. Break out */
257 lpfc_printf_log(phba, KERN_INFO, LOG_VPORT,
258 "1834 Vport discovery quiesced:"
259 " vpi x%x state x%x fc_flags x%x"
260 " wait msecs x%x\n",
261 vport->vpi, vport->port_state,
262 vport->fc_flag,
263 jiffies_to_msecs(jiffies
264 - start_time));
265 break;
266 }
267 }
268
269 if (time_after(jiffies, wait_time_max))
270 lpfc_printf_log(phba, KERN_ERR, LOG_VPORT,
271 "1835 Vport discovery quiesce failed:"
272 " vpi x%x state x%x fc_flags x%x"
273 " wait msecs x%x\n",
274 vport->vpi, vport->port_state,
275 vport->fc_flag,
276 jiffies_to_msecs(jiffies - start_time));
277}
278
207int 279int
208lpfc_vport_create(struct fc_vport *fc_vport, bool disable) 280lpfc_vport_create(struct fc_vport *fc_vport, bool disable)
209{ 281{
@@ -506,8 +578,12 @@ lpfc_vport_delete(struct fc_vport *fc_vport)
506 * initiated after we've disposed of all other resources associated 578 * initiated after we've disposed of all other resources associated
507 * with the port. 579 * with the port.
508 */ 580 */
509 if (!scsi_host_get(shost) || !scsi_host_get(shost)) 581 if (!scsi_host_get(shost))
582 return VPORT_INVAL;
583 if (!scsi_host_get(shost)) {
584 scsi_host_put(shost);
510 return VPORT_INVAL; 585 return VPORT_INVAL;
586 }
511 spin_lock_irq(&phba->hbalock); 587 spin_lock_irq(&phba->hbalock);
512 vport->load_flag |= FC_UNLOADING; 588 vport->load_flag |= FC_UNLOADING;
513 spin_unlock_irq(&phba->hbalock); 589 spin_unlock_irq(&phba->hbalock);
@@ -597,11 +673,16 @@ lpfc_vport_delete(struct fc_vport *fc_vport)
597 } 673 }
598 vport->unreg_vpi_cmpl = VPORT_INVAL; 674 vport->unreg_vpi_cmpl = VPORT_INVAL;
599 timeout = msecs_to_jiffies(phba->fc_ratov * 2000); 675 timeout = msecs_to_jiffies(phba->fc_ratov * 2000);
676 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
677 goto skip_logo;
600 if (!lpfc_issue_els_npiv_logo(vport, ndlp)) 678 if (!lpfc_issue_els_npiv_logo(vport, ndlp))
601 while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout) 679 while (vport->unreg_vpi_cmpl == VPORT_INVAL && timeout)
602 timeout = schedule_timeout(timeout); 680 timeout = schedule_timeout(timeout);
603 } 681 }
604 682
683 if (!(phba->pport->load_flag & FC_UNLOADING))
684 lpfc_discovery_wait(vport);
685
605skip_logo: 686skip_logo:
606 lpfc_cleanup(vport); 687 lpfc_cleanup(vport);
607 lpfc_sli_host_down(vport); 688 lpfc_sli_host_down(vport);
@@ -615,8 +696,10 @@ skip_logo:
615 * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi) 696 * Completion of unreg_vpi (lpfc_mbx_cmpl_unreg_vpi)
616 * does the scsi_host_put() to release the vport. 697 * does the scsi_host_put() to release the vport.
617 */ 698 */
618 lpfc_mbx_unreg_vpi(vport); 699 if (lpfc_mbx_unreg_vpi(vport))
619 } 700 scsi_host_put(shost);
701 } else
702 scsi_host_put(shost);
620 703
621 lpfc_free_vpi(phba, vport->vpi); 704 lpfc_free_vpi(phba, vport->vpi);
622 vport->work_port_events = 0; 705 vport->work_port_events = 0;
@@ -663,3 +746,82 @@ lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports)
663 scsi_host_put(lpfc_shost_from_vport(vports[i])); 746 scsi_host_put(lpfc_shost_from_vport(vports[i]));
664 kfree(vports); 747 kfree(vports);
665} 748}
749
750
751/**
752 * lpfc_vport_reset_stat_data: Reset the statistical data for the vport.
753 * @vport: Pointer to vport object.
754 *
755 * This function resets the statistical data for the vport. This function
756 * is called with the host_lock held
757 **/
758void
759lpfc_vport_reset_stat_data(struct lpfc_vport *vport)
760{
761 struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
762
763 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
764 if (!NLP_CHK_NODE_ACT(ndlp))
765 continue;
766 if (ndlp->lat_data)
767 memset(ndlp->lat_data, 0, LPFC_MAX_BUCKET_COUNT *
768 sizeof(struct lpfc_scsicmd_bkt));
769 }
770}
771
772
773/**
774 * lpfc_alloc_bucket: Allocate data buffer required for collecting
775 * statistical data.
776 * @vport: Pointer to vport object.
777 *
778 * This function allocates data buffer required for all the FC
779 * nodes of the vport to collect statistical data.
780 **/
781void
782lpfc_alloc_bucket(struct lpfc_vport *vport)
783{
784 struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
785
786 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
787 if (!NLP_CHK_NODE_ACT(ndlp))
788 continue;
789
790 kfree(ndlp->lat_data);
791 ndlp->lat_data = NULL;
792
793 if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
794 ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
795 sizeof(struct lpfc_scsicmd_bkt),
796 GFP_ATOMIC);
797
798 if (!ndlp->lat_data)
799 lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
800 "0287 lpfc_alloc_bucket failed to "
801 "allocate statistical data buffer DID "
802 "0x%x\n", ndlp->nlp_DID);
803 }
804 }
805}
806
807/**
808 * lpfc_free_bucket: Free data buffer required for collecting
809 * statistical data.
810 * @vport: Pointer to vport object.
811 *
812 * Th function frees statistical data buffer of all the FC
813 * nodes of the vport.
814 **/
815void
816lpfc_free_bucket(struct lpfc_vport *vport)
817{
818 struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
819
820 list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
821 if (!NLP_CHK_NODE_ACT(ndlp))
822 continue;
823
824 kfree(ndlp->lat_data);
825 ndlp->lat_data = NULL;
826 }
827}
diff --git a/drivers/scsi/lpfc/lpfc_vport.h b/drivers/scsi/lpfc/lpfc_vport.h
index 96c445333b69..90828340acea 100644
--- a/drivers/scsi/lpfc/lpfc_vport.h
+++ b/drivers/scsi/lpfc/lpfc_vport.h
@@ -112,4 +112,8 @@ struct vport_cmd_tag {
112void lpfc_vport_set_state(struct lpfc_vport *vport, 112void lpfc_vport_set_state(struct lpfc_vport *vport,
113 enum fc_vport_state new_state); 113 enum fc_vport_state new_state);
114 114
115void lpfc_vport_reset_stat_data(struct lpfc_vport *);
116void lpfc_alloc_bucket(struct lpfc_vport *);
117void lpfc_free_bucket(struct lpfc_vport *);
118
115#endif /* H_LPFC_VPORT */ 119#endif /* H_LPFC_VPORT */
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 0ddfe7106b3b..ed731968f15f 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1006,7 +1006,6 @@ qla2x00_terminate_rport_io(struct fc_rport *rport)
1006 } 1006 }
1007 1007
1008 qla2x00_abort_fcport_cmds(fcport); 1008 qla2x00_abort_fcport_cmds(fcport);
1009 scsi_target_unblock(&rport->dev);
1010} 1009}
1011 1010
1012static int 1011static int
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index fc4bfa7f839c..a76efd99d007 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1187,7 +1187,12 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt)
1187 cp->serial_number, comp_status, 1187 cp->serial_number, comp_status,
1188 atomic_read(&fcport->state))); 1188 atomic_read(&fcport->state)));
1189 1189
1190 cp->result = DID_BUS_BUSY << 16; 1190 /*
1191 * We are going to have the fc class block the rport
1192 * while we try to recover so instruct the mid layer
1193 * to requeue until the class decides how to handle this.
1194 */
1195 cp->result = DID_TRANSPORT_DISRUPTED << 16;
1191 if (atomic_read(&fcport->state) == FCS_ONLINE) 1196 if (atomic_read(&fcport->state) == FCS_ONLINE)
1192 qla2x00_mark_device_lost(fcport->ha, fcport, 1, 1); 1197 qla2x00_mark_device_lost(fcport->ha, fcport, 1, 1);
1193 break; 1198 break;
@@ -1214,7 +1219,12 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt)
1214 break; 1219 break;
1215 1220
1216 case CS_TIMEOUT: 1221 case CS_TIMEOUT:
1217 cp->result = DID_BUS_BUSY << 16; 1222 /*
1223 * We are going to have the fc class block the rport
1224 * while we try to recover so instruct the mid layer
1225 * to requeue until the class decides how to handle this.
1226 */
1227 cp->result = DID_TRANSPORT_DISRUPTED << 16;
1218 1228
1219 if (IS_FWI2_CAPABLE(ha)) { 1229 if (IS_FWI2_CAPABLE(ha)) {
1220 DEBUG2(printk(KERN_INFO 1230 DEBUG2(printk(KERN_INFO
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 3433441b956a..2aed4721c0d0 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -394,10 +394,8 @@ qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
394 } 394 }
395 395
396 /* Close window on fcport/rport state-transitioning. */ 396 /* Close window on fcport/rport state-transitioning. */
397 if (fcport->drport) { 397 if (fcport->drport)
398 cmd->result = DID_IMM_RETRY << 16; 398 goto qc_target_busy;
399 goto qc_fail_command;
400 }
401 399
402 if (atomic_read(&fcport->state) != FCS_ONLINE) { 400 if (atomic_read(&fcport->state) != FCS_ONLINE) {
403 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD || 401 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
@@ -405,7 +403,7 @@ qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
405 cmd->result = DID_NO_CONNECT << 16; 403 cmd->result = DID_NO_CONNECT << 16;
406 goto qc_fail_command; 404 goto qc_fail_command;
407 } 405 }
408 goto qc_host_busy; 406 goto qc_target_busy;
409 } 407 }
410 408
411 spin_unlock_irq(ha->host->host_lock); 409 spin_unlock_irq(ha->host->host_lock);
@@ -428,10 +426,11 @@ qc_host_busy_free_sp:
428 426
429qc_host_busy_lock: 427qc_host_busy_lock:
430 spin_lock_irq(ha->host->host_lock); 428 spin_lock_irq(ha->host->host_lock);
431
432qc_host_busy:
433 return SCSI_MLQUEUE_HOST_BUSY; 429 return SCSI_MLQUEUE_HOST_BUSY;
434 430
431qc_target_busy:
432 return SCSI_MLQUEUE_TARGET_BUSY;
433
435qc_fail_command: 434qc_fail_command:
436 done(cmd); 435 done(cmd);
437 436
@@ -461,10 +460,8 @@ qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
461 } 460 }
462 461
463 /* Close window on fcport/rport state-transitioning. */ 462 /* Close window on fcport/rport state-transitioning. */
464 if (fcport->drport) { 463 if (fcport->drport)
465 cmd->result = DID_IMM_RETRY << 16; 464 goto qc24_target_busy;
466 goto qc24_fail_command;
467 }
468 465
469 if (atomic_read(&fcport->state) != FCS_ONLINE) { 466 if (atomic_read(&fcport->state) != FCS_ONLINE) {
470 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD || 467 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
@@ -472,7 +469,7 @@ qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
472 cmd->result = DID_NO_CONNECT << 16; 469 cmd->result = DID_NO_CONNECT << 16;
473 goto qc24_fail_command; 470 goto qc24_fail_command;
474 } 471 }
475 goto qc24_host_busy; 472 goto qc24_target_busy;
476 } 473 }
477 474
478 spin_unlock_irq(ha->host->host_lock); 475 spin_unlock_irq(ha->host->host_lock);
@@ -495,10 +492,11 @@ qc24_host_busy_free_sp:
495 492
496qc24_host_busy_lock: 493qc24_host_busy_lock:
497 spin_lock_irq(ha->host->host_lock); 494 spin_lock_irq(ha->host->host_lock);
498
499qc24_host_busy:
500 return SCSI_MLQUEUE_HOST_BUSY; 495 return SCSI_MLQUEUE_HOST_BUSY;
501 496
497qc24_target_busy:
498 return SCSI_MLQUEUE_TARGET_BUSY;
499
502qc24_fail_command: 500qc24_fail_command:
503 done(cmd); 501 done(cmd);
504 502
diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c
index a91a57c57bff..799120fcb9be 100644
--- a/drivers/scsi/qla4xxx/ql4_isr.c
+++ b/drivers/scsi/qla4xxx/ql4_isr.c
@@ -139,7 +139,7 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha,
139 ha->host_no, cmd->device->channel, 139 ha->host_no, cmd->device->channel,
140 cmd->device->id, cmd->device->lun)); 140 cmd->device->id, cmd->device->lun));
141 141
142 cmd->result = DID_BUS_BUSY << 16; 142 cmd->result = DID_TRANSPORT_DISRUPTED << 16;
143 143
144 /* 144 /*
145 * Mark device missing so that we won't continue to send 145 * Mark device missing so that we won't continue to send
@@ -243,7 +243,7 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha,
243 if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE) 243 if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE)
244 qla4xxx_mark_device_missing(ha, ddb_entry); 244 qla4xxx_mark_device_missing(ha, ddb_entry);
245 245
246 cmd->result = DID_BUS_BUSY << 16; 246 cmd->result = DID_TRANSPORT_DISRUPTED << 16;
247 break; 247 break;
248 248
249 case SCS_QUEUE_FULL: 249 case SCS_QUEUE_FULL:
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index de8279ad7d89..db7ea3bb4e83 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -353,7 +353,7 @@ void qla4xxx_mark_device_missing(struct scsi_qla_host *ha,
353 ha->host_no, ddb_entry->bus, ddb_entry->target, 353 ha->host_no, ddb_entry->bus, ddb_entry->target,
354 ddb_entry->fw_ddb_index)); 354 ddb_entry->fw_ddb_index));
355 iscsi_block_session(ddb_entry->sess); 355 iscsi_block_session(ddb_entry->sess);
356 iscsi_conn_error(ddb_entry->conn, ISCSI_ERR_CONN_FAILED); 356 iscsi_conn_error_event(ddb_entry->conn, ISCSI_ERR_CONN_FAILED);
357} 357}
358 358
359static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha, 359static struct srb* qla4xxx_get_new_srb(struct scsi_qla_host *ha,
@@ -439,7 +439,7 @@ static int qla4xxx_queuecommand(struct scsi_cmnd *cmd,
439 cmd->result = DID_NO_CONNECT << 16; 439 cmd->result = DID_NO_CONNECT << 16;
440 goto qc_fail_command; 440 goto qc_fail_command;
441 } 441 }
442 goto qc_host_busy; 442 return SCSI_MLQUEUE_TARGET_BUSY;
443 } 443 }
444 444
445 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags)) 445 if (test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags))
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 2ac3cb2b9081..f8b79d401d58 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -754,8 +754,12 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
754 } 754 }
755 spin_unlock_irqrestore(host->host_lock, flags); 755 spin_unlock_irqrestore(host->host_lock, flags);
756 if (rtn) { 756 if (rtn) {
757 scsi_queue_insert(cmd, (rtn == SCSI_MLQUEUE_DEVICE_BUSY) ? 757 if (rtn != SCSI_MLQUEUE_DEVICE_BUSY &&
758 rtn : SCSI_MLQUEUE_HOST_BUSY); 758 rtn != SCSI_MLQUEUE_TARGET_BUSY)
759 rtn = SCSI_MLQUEUE_HOST_BUSY;
760
761 scsi_queue_insert(cmd, rtn);
762
759 SCSI_LOG_MLQUEUE(3, 763 SCSI_LOG_MLQUEUE(3,
760 printk("queuecommand : request rejected\n")); 764 printk("queuecommand : request rejected\n"));
761 } 765 }
@@ -800,6 +804,7 @@ static struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd)
800void scsi_finish_command(struct scsi_cmnd *cmd) 804void scsi_finish_command(struct scsi_cmnd *cmd)
801{ 805{
802 struct scsi_device *sdev = cmd->device; 806 struct scsi_device *sdev = cmd->device;
807 struct scsi_target *starget = scsi_target(sdev);
803 struct Scsi_Host *shost = sdev->host; 808 struct Scsi_Host *shost = sdev->host;
804 struct scsi_driver *drv; 809 struct scsi_driver *drv;
805 unsigned int good_bytes; 810 unsigned int good_bytes;
@@ -815,6 +820,7 @@ void scsi_finish_command(struct scsi_cmnd *cmd)
815 * XXX(hch): What about locking? 820 * XXX(hch): What about locking?
816 */ 821 */
817 shost->host_blocked = 0; 822 shost->host_blocked = 0;
823 starget->target_blocked = 0;
818 sdev->device_blocked = 0; 824 sdev->device_blocked = 0;
819 825
820 /* 826 /*
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index fecefa05cb62..94ed262bdf0c 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1065,10 +1065,10 @@ static int scsi_eh_target_reset(struct Scsi_Host *shost,
1065 struct list_head *done_q) 1065 struct list_head *done_q)
1066{ 1066{
1067 struct scsi_cmnd *scmd, *tgtr_scmd, *next; 1067 struct scsi_cmnd *scmd, *tgtr_scmd, *next;
1068 unsigned int id; 1068 unsigned int id = 0;
1069 int rtn; 1069 int rtn;
1070 1070
1071 for (id = 0; id <= shost->max_id; id++) { 1071 do {
1072 tgtr_scmd = NULL; 1072 tgtr_scmd = NULL;
1073 list_for_each_entry(scmd, work_q, eh_entry) { 1073 list_for_each_entry(scmd, work_q, eh_entry) {
1074 if (id == scmd_id(scmd)) { 1074 if (id == scmd_id(scmd)) {
@@ -1076,8 +1076,18 @@ static int scsi_eh_target_reset(struct Scsi_Host *shost,
1076 break; 1076 break;
1077 } 1077 }
1078 } 1078 }
1079 if (!tgtr_scmd) {
1080 /* not one exactly equal; find the next highest */
1081 list_for_each_entry(scmd, work_q, eh_entry) {
1082 if (scmd_id(scmd) > id &&
1083 (!tgtr_scmd ||
1084 scmd_id(tgtr_scmd) > scmd_id(scmd)))
1085 tgtr_scmd = scmd;
1086 }
1087 }
1079 if (!tgtr_scmd) 1088 if (!tgtr_scmd)
1080 continue; 1089 /* no more commands, that's it */
1090 break;
1081 1091
1082 SCSI_LOG_ERROR_RECOVERY(3, printk("%s: Sending target reset " 1092 SCSI_LOG_ERROR_RECOVERY(3, printk("%s: Sending target reset "
1083 "to target %d\n", 1093 "to target %d\n",
@@ -1096,7 +1106,8 @@ static int scsi_eh_target_reset(struct Scsi_Host *shost,
1096 " failed target: " 1106 " failed target: "
1097 "%d\n", 1107 "%d\n",
1098 current->comm, id)); 1108 current->comm, id));
1099 } 1109 id++;
1110 } while(id != 0);
1100 1111
1101 return list_empty(work_q); 1112 return list_empty(work_q);
1102} 1113}
@@ -1219,6 +1230,40 @@ static void scsi_eh_offline_sdevs(struct list_head *work_q,
1219} 1230}
1220 1231
1221/** 1232/**
1233 * scsi_noretry_cmd - determinte if command should be failed fast
1234 * @scmd: SCSI cmd to examine.
1235 */
1236int scsi_noretry_cmd(struct scsi_cmnd *scmd)
1237{
1238 switch (host_byte(scmd->result)) {
1239 case DID_OK:
1240 break;
1241 case DID_BUS_BUSY:
1242 return blk_failfast_transport(scmd->request);
1243 case DID_PARITY:
1244 return blk_failfast_dev(scmd->request);
1245 case DID_ERROR:
1246 if (msg_byte(scmd->result) == COMMAND_COMPLETE &&
1247 status_byte(scmd->result) == RESERVATION_CONFLICT)
1248 return 0;
1249 /* fall through */
1250 case DID_SOFT_ERROR:
1251 return blk_failfast_driver(scmd->request);
1252 }
1253
1254 switch (status_byte(scmd->result)) {
1255 case CHECK_CONDITION:
1256 /*
1257 * assume caller has checked sense and determinted
1258 * the check condition was retryable.
1259 */
1260 return blk_failfast_dev(scmd->request);
1261 }
1262
1263 return 0;
1264}
1265
1266/**
1222 * scsi_decide_disposition - Disposition a cmd on return from LLD. 1267 * scsi_decide_disposition - Disposition a cmd on return from LLD.
1223 * @scmd: SCSI cmd to examine. 1268 * @scmd: SCSI cmd to examine.
1224 * 1269 *
@@ -1290,7 +1335,20 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd)
1290 1335
1291 case DID_REQUEUE: 1336 case DID_REQUEUE:
1292 return ADD_TO_MLQUEUE; 1337 return ADD_TO_MLQUEUE;
1293 1338 case DID_TRANSPORT_DISRUPTED:
1339 /*
1340 * LLD/transport was disrupted during processing of the IO.
1341 * The transport class is now blocked/blocking,
1342 * and the transport will decide what to do with the IO
1343 * based on its timers and recovery capablilities.
1344 */
1345 return ADD_TO_MLQUEUE;
1346 case DID_TRANSPORT_FAILFAST:
1347 /*
1348 * The transport decided to failfast the IO (most likely
1349 * the fast io fail tmo fired), so send IO directly upwards.
1350 */
1351 return SUCCESS;
1294 case DID_ERROR: 1352 case DID_ERROR:
1295 if (msg_byte(scmd->result) == COMMAND_COMPLETE && 1353 if (msg_byte(scmd->result) == COMMAND_COMPLETE &&
1296 status_byte(scmd->result) == RESERVATION_CONFLICT) 1354 status_byte(scmd->result) == RESERVATION_CONFLICT)
@@ -1383,7 +1441,7 @@ int scsi_decide_disposition(struct scsi_cmnd *scmd)
1383 * even if the request is marked fast fail, we still requeue 1441 * even if the request is marked fast fail, we still requeue
1384 * for queue congestion conditions (QUEUE_FULL or BUSY) */ 1442 * for queue congestion conditions (QUEUE_FULL or BUSY) */
1385 if ((++scmd->retries) <= scmd->allowed 1443 if ((++scmd->retries) <= scmd->allowed
1386 && !blk_noretry_request(scmd->request)) { 1444 && !scsi_noretry_cmd(scmd)) {
1387 return NEEDS_RETRY; 1445 return NEEDS_RETRY;
1388 } else { 1446 } else {
1389 /* 1447 /*
@@ -1508,7 +1566,7 @@ void scsi_eh_flush_done_q(struct list_head *done_q)
1508 list_for_each_entry_safe(scmd, next, done_q, eh_entry) { 1566 list_for_each_entry_safe(scmd, next, done_q, eh_entry) {
1509 list_del_init(&scmd->eh_entry); 1567 list_del_init(&scmd->eh_entry);
1510 if (scsi_device_online(scmd->device) && 1568 if (scsi_device_online(scmd->device) &&
1511 !blk_noretry_request(scmd->request) && 1569 !scsi_noretry_cmd(scmd) &&
1512 (++scmd->retries <= scmd->allowed)) { 1570 (++scmd->retries <= scmd->allowed)) {
1513 SCSI_LOG_ERROR_RECOVERY(3, printk("%s: flush" 1571 SCSI_LOG_ERROR_RECOVERY(3, printk("%s: flush"
1514 " retry cmd: %p\n", 1572 " retry cmd: %p\n",
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 98ee55ced592..e5a9526d2037 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -114,6 +114,7 @@ int scsi_queue_insert(struct scsi_cmnd *cmd, int reason)
114{ 114{
115 struct Scsi_Host *host = cmd->device->host; 115 struct Scsi_Host *host = cmd->device->host;
116 struct scsi_device *device = cmd->device; 116 struct scsi_device *device = cmd->device;
117 struct scsi_target *starget = scsi_target(device);
117 struct request_queue *q = device->request_queue; 118 struct request_queue *q = device->request_queue;
118 unsigned long flags; 119 unsigned long flags;
119 120
@@ -133,10 +134,17 @@ int scsi_queue_insert(struct scsi_cmnd *cmd, int reason)
133 * if a command is requeued with no other commands outstanding 134 * if a command is requeued with no other commands outstanding
134 * either for the device or for the host. 135 * either for the device or for the host.
135 */ 136 */
136 if (reason == SCSI_MLQUEUE_HOST_BUSY) 137 switch (reason) {
138 case SCSI_MLQUEUE_HOST_BUSY:
137 host->host_blocked = host->max_host_blocked; 139 host->host_blocked = host->max_host_blocked;
138 else if (reason == SCSI_MLQUEUE_DEVICE_BUSY) 140 break;
141 case SCSI_MLQUEUE_DEVICE_BUSY:
139 device->device_blocked = device->max_device_blocked; 142 device->device_blocked = device->max_device_blocked;
143 break;
144 case SCSI_MLQUEUE_TARGET_BUSY:
145 starget->target_blocked = starget->max_target_blocked;
146 break;
147 }
140 148
141 /* 149 /*
142 * Decrement the counters, since these commands are no longer 150 * Decrement the counters, since these commands are no longer
@@ -460,10 +468,12 @@ static void scsi_init_cmd_errh(struct scsi_cmnd *cmd)
460void scsi_device_unbusy(struct scsi_device *sdev) 468void scsi_device_unbusy(struct scsi_device *sdev)
461{ 469{
462 struct Scsi_Host *shost = sdev->host; 470 struct Scsi_Host *shost = sdev->host;
471 struct scsi_target *starget = scsi_target(sdev);
463 unsigned long flags; 472 unsigned long flags;
464 473
465 spin_lock_irqsave(shost->host_lock, flags); 474 spin_lock_irqsave(shost->host_lock, flags);
466 shost->host_busy--; 475 shost->host_busy--;
476 starget->target_busy--;
467 if (unlikely(scsi_host_in_recovery(shost) && 477 if (unlikely(scsi_host_in_recovery(shost) &&
468 (shost->host_failed || shost->host_eh_scheduled))) 478 (shost->host_failed || shost->host_eh_scheduled)))
469 scsi_eh_wakeup(shost); 479 scsi_eh_wakeup(shost);
@@ -519,6 +529,13 @@ static void scsi_single_lun_run(struct scsi_device *current_sdev)
519 spin_unlock_irqrestore(shost->host_lock, flags); 529 spin_unlock_irqrestore(shost->host_lock, flags);
520} 530}
521 531
532static inline int scsi_target_is_busy(struct scsi_target *starget)
533{
534 return ((starget->can_queue > 0 &&
535 starget->target_busy >= starget->can_queue) ||
536 starget->target_blocked);
537}
538
522/* 539/*
523 * Function: scsi_run_queue() 540 * Function: scsi_run_queue()
524 * 541 *
@@ -533,7 +550,7 @@ static void scsi_single_lun_run(struct scsi_device *current_sdev)
533 */ 550 */
534static void scsi_run_queue(struct request_queue *q) 551static void scsi_run_queue(struct request_queue *q)
535{ 552{
536 struct scsi_device *sdev = q->queuedata; 553 struct scsi_device *starved_head = NULL, *sdev = q->queuedata;
537 struct Scsi_Host *shost = sdev->host; 554 struct Scsi_Host *shost = sdev->host;
538 unsigned long flags; 555 unsigned long flags;
539 556
@@ -560,6 +577,21 @@ static void scsi_run_queue(struct request_queue *q)
560 */ 577 */
561 sdev = list_entry(shost->starved_list.next, 578 sdev = list_entry(shost->starved_list.next,
562 struct scsi_device, starved_entry); 579 struct scsi_device, starved_entry);
580 /*
581 * The *queue_ready functions can add a device back onto the
582 * starved list's tail, so we must check for a infinite loop.
583 */
584 if (sdev == starved_head)
585 break;
586 if (!starved_head)
587 starved_head = sdev;
588
589 if (scsi_target_is_busy(scsi_target(sdev))) {
590 list_move_tail(&sdev->starved_entry,
591 &shost->starved_list);
592 continue;
593 }
594
563 list_del_init(&sdev->starved_entry); 595 list_del_init(&sdev->starved_entry);
564 spin_unlock(shost->host_lock); 596 spin_unlock(shost->host_lock);
565 597
@@ -575,13 +607,6 @@ static void scsi_run_queue(struct request_queue *q)
575 spin_unlock(sdev->request_queue->queue_lock); 607 spin_unlock(sdev->request_queue->queue_lock);
576 608
577 spin_lock(shost->host_lock); 609 spin_lock(shost->host_lock);
578 if (unlikely(!list_empty(&sdev->starved_entry)))
579 /*
580 * sdev lost a race, and was put back on the
581 * starved list. This is unlikely but without this
582 * in theory we could loop forever.
583 */
584 break;
585 } 610 }
586 spin_unlock_irqrestore(shost->host_lock, flags); 611 spin_unlock_irqrestore(shost->host_lock, flags);
587 612
@@ -681,7 +706,7 @@ static struct scsi_cmnd *scsi_end_request(struct scsi_cmnd *cmd, int error,
681 leftover = req->data_len; 706 leftover = req->data_len;
682 707
683 /* kill remainder if no retrys */ 708 /* kill remainder if no retrys */
684 if (error && blk_noretry_request(req)) 709 if (error && scsi_noretry_cmd(cmd))
685 blk_end_request(req, error, leftover); 710 blk_end_request(req, error, leftover);
686 else { 711 else {
687 if (requeue) { 712 if (requeue) {
@@ -1344,6 +1369,52 @@ static inline int scsi_dev_queue_ready(struct request_queue *q,
1344 return 1; 1369 return 1;
1345} 1370}
1346 1371
1372
1373/*
1374 * scsi_target_queue_ready: checks if there we can send commands to target
1375 * @sdev: scsi device on starget to check.
1376 *
1377 * Called with the host lock held.
1378 */
1379static inline int scsi_target_queue_ready(struct Scsi_Host *shost,
1380 struct scsi_device *sdev)
1381{
1382 struct scsi_target *starget = scsi_target(sdev);
1383
1384 if (starget->single_lun) {
1385 if (starget->starget_sdev_user &&
1386 starget->starget_sdev_user != sdev)
1387 return 0;
1388 starget->starget_sdev_user = sdev;
1389 }
1390
1391 if (starget->target_busy == 0 && starget->target_blocked) {
1392 /*
1393 * unblock after target_blocked iterates to zero
1394 */
1395 if (--starget->target_blocked == 0) {
1396 SCSI_LOG_MLQUEUE(3, starget_printk(KERN_INFO, starget,
1397 "unblocking target at zero depth\n"));
1398 } else {
1399 blk_plug_device(sdev->request_queue);
1400 return 0;
1401 }
1402 }
1403
1404 if (scsi_target_is_busy(starget)) {
1405 if (list_empty(&sdev->starved_entry)) {
1406 list_add_tail(&sdev->starved_entry,
1407 &shost->starved_list);
1408 return 0;
1409 }
1410 }
1411
1412 /* We're OK to process the command, so we can't be starved */
1413 if (!list_empty(&sdev->starved_entry))
1414 list_del_init(&sdev->starved_entry);
1415 return 1;
1416}
1417
1347/* 1418/*
1348 * scsi_host_queue_ready: if we can send requests to shost, return 1 else 1419 * scsi_host_queue_ready: if we can send requests to shost, return 1 else
1349 * return 0. We must end up running the queue again whenever 0 is 1420 * return 0. We must end up running the queue again whenever 0 is
@@ -1390,6 +1461,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q)
1390{ 1461{
1391 struct scsi_cmnd *cmd = req->special; 1462 struct scsi_cmnd *cmd = req->special;
1392 struct scsi_device *sdev = cmd->device; 1463 struct scsi_device *sdev = cmd->device;
1464 struct scsi_target *starget = scsi_target(sdev);
1393 struct Scsi_Host *shost = sdev->host; 1465 struct Scsi_Host *shost = sdev->host;
1394 1466
1395 blkdev_dequeue_request(req); 1467 blkdev_dequeue_request(req);
@@ -1413,6 +1485,7 @@ static void scsi_kill_request(struct request *req, struct request_queue *q)
1413 spin_unlock(sdev->request_queue->queue_lock); 1485 spin_unlock(sdev->request_queue->queue_lock);
1414 spin_lock(shost->host_lock); 1486 spin_lock(shost->host_lock);
1415 shost->host_busy++; 1487 shost->host_busy++;
1488 starget->target_busy++;
1416 spin_unlock(shost->host_lock); 1489 spin_unlock(shost->host_lock);
1417 spin_lock(sdev->request_queue->queue_lock); 1490 spin_lock(sdev->request_queue->queue_lock);
1418 1491
@@ -1550,14 +1623,13 @@ static void scsi_request_fn(struct request_queue *q)
1550 goto not_ready; 1623 goto not_ready;
1551 } 1624 }
1552 1625
1626 if (!scsi_target_queue_ready(shost, sdev))
1627 goto not_ready;
1628
1553 if (!scsi_host_queue_ready(q, shost, sdev)) 1629 if (!scsi_host_queue_ready(q, shost, sdev))
1554 goto not_ready; 1630 goto not_ready;
1555 if (scsi_target(sdev)->single_lun) { 1631
1556 if (scsi_target(sdev)->starget_sdev_user && 1632 scsi_target(sdev)->target_busy++;
1557 scsi_target(sdev)->starget_sdev_user != sdev)
1558 goto not_ready;
1559 scsi_target(sdev)->starget_sdev_user = sdev;
1560 }
1561 shost->host_busy++; 1633 shost->host_busy++;
1562 1634
1563 /* 1635 /*
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index 6cddd5dd323c..e1850904ff73 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -59,6 +59,7 @@ void scsi_eh_ready_devs(struct Scsi_Host *shost,
59 struct list_head *done_q); 59 struct list_head *done_q);
60int scsi_eh_get_sense(struct list_head *work_q, 60int scsi_eh_get_sense(struct list_head *work_q,
61 struct list_head *done_q); 61 struct list_head *done_q);
62int scsi_noretry_cmd(struct scsi_cmnd *scmd);
62 63
63/* scsi_lib.c */ 64/* scsi_lib.c */
64extern int scsi_maybe_unblock_host(struct scsi_device *sdev); 65extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 334862e26a1b..b14dc02c3ded 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -419,6 +419,7 @@ static struct scsi_target *scsi_alloc_target(struct device *parent,
419 dev->type = &scsi_target_type; 419 dev->type = &scsi_target_type;
420 starget->id = id; 420 starget->id = id;
421 starget->channel = channel; 421 starget->channel = channel;
422 starget->can_queue = 0;
422 INIT_LIST_HEAD(&starget->siblings); 423 INIT_LIST_HEAD(&starget->siblings);
423 INIT_LIST_HEAD(&starget->devices); 424 INIT_LIST_HEAD(&starget->devices);
424 starget->state = STARGET_CREATED; 425 starget->state = STARGET_CREATED;
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index d5f7653bb94b..1e71abf0607a 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -2133,8 +2133,7 @@ fc_attach_transport(struct fc_function_template *ft)
2133 SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(roles); 2133 SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(roles);
2134 SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_state); 2134 SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_state);
2135 SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(scsi_target_id); 2135 SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(scsi_target_id);
2136 if (ft->terminate_rport_io) 2136 SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(fast_io_fail_tmo);
2137 SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(fast_io_fail_tmo);
2138 2137
2139 BUG_ON(count > FC_RPORT_NUM_ATTRS); 2138 BUG_ON(count > FC_RPORT_NUM_ATTRS);
2140 2139
@@ -2328,6 +2327,22 @@ fc_remove_host(struct Scsi_Host *shost)
2328} 2327}
2329EXPORT_SYMBOL(fc_remove_host); 2328EXPORT_SYMBOL(fc_remove_host);
2330 2329
2330static void fc_terminate_rport_io(struct fc_rport *rport)
2331{
2332 struct Scsi_Host *shost = rport_to_shost(rport);
2333 struct fc_internal *i = to_fc_internal(shost->transportt);
2334
2335 /* Involve the LLDD if possible to terminate all io on the rport. */
2336 if (i->f->terminate_rport_io)
2337 i->f->terminate_rport_io(rport);
2338
2339 /*
2340 * must unblock to flush queued IO. The caller will have set
2341 * the port_state or flags, so that fc_remote_port_chkready will
2342 * fail IO.
2343 */
2344 scsi_target_unblock(&rport->dev);
2345}
2331 2346
2332/** 2347/**
2333 * fc_starget_delete - called to delete the scsi decendents of an rport 2348 * fc_starget_delete - called to delete the scsi decendents of an rport
@@ -2340,13 +2355,8 @@ fc_starget_delete(struct work_struct *work)
2340{ 2355{
2341 struct fc_rport *rport = 2356 struct fc_rport *rport =
2342 container_of(work, struct fc_rport, stgt_delete_work); 2357 container_of(work, struct fc_rport, stgt_delete_work);
2343 struct Scsi_Host *shost = rport_to_shost(rport);
2344 struct fc_internal *i = to_fc_internal(shost->transportt);
2345
2346 /* Involve the LLDD if possible to terminate all io on the rport. */
2347 if (i->f->terminate_rport_io)
2348 i->f->terminate_rport_io(rport);
2349 2358
2359 fc_terminate_rport_io(rport);
2350 scsi_remove_target(&rport->dev); 2360 scsi_remove_target(&rport->dev);
2351} 2361}
2352 2362
@@ -2372,10 +2382,7 @@ fc_rport_final_delete(struct work_struct *work)
2372 if (rport->flags & FC_RPORT_SCAN_PENDING) 2382 if (rport->flags & FC_RPORT_SCAN_PENDING)
2373 scsi_flush_work(shost); 2383 scsi_flush_work(shost);
2374 2384
2375 /* involve the LLDD to terminate all pending i/o */ 2385 fc_terminate_rport_io(rport);
2376 if (i->f->terminate_rport_io)
2377 i->f->terminate_rport_io(rport);
2378
2379 /* 2386 /*
2380 * Cancel any outstanding timers. These should really exist 2387 * Cancel any outstanding timers. These should really exist
2381 * only when rmmod'ing the LLDD and we're asking for 2388 * only when rmmod'ing the LLDD and we're asking for
@@ -2639,7 +2646,8 @@ fc_remote_port_add(struct Scsi_Host *shost, int channel,
2639 2646
2640 spin_lock_irqsave(shost->host_lock, flags); 2647 spin_lock_irqsave(shost->host_lock, flags);
2641 2648
2642 rport->flags &= ~FC_RPORT_DEVLOSS_PENDING; 2649 rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT |
2650 FC_RPORT_DEVLOSS_PENDING);
2643 2651
2644 /* if target, initiate a scan */ 2652 /* if target, initiate a scan */
2645 if (rport->scsi_target_id != -1) { 2653 if (rport->scsi_target_id != -1) {
@@ -2702,6 +2710,7 @@ fc_remote_port_add(struct Scsi_Host *shost, int channel,
2702 rport->port_id = ids->port_id; 2710 rport->port_id = ids->port_id;
2703 rport->roles = ids->roles; 2711 rport->roles = ids->roles;
2704 rport->port_state = FC_PORTSTATE_ONLINE; 2712 rport->port_state = FC_PORTSTATE_ONLINE;
2713 rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT;
2705 2714
2706 if (fci->f->dd_fcrport_size) 2715 if (fci->f->dd_fcrport_size)
2707 memset(rport->dd_data, 0, 2716 memset(rport->dd_data, 0,
@@ -2784,7 +2793,6 @@ void
2784fc_remote_port_delete(struct fc_rport *rport) 2793fc_remote_port_delete(struct fc_rport *rport)
2785{ 2794{
2786 struct Scsi_Host *shost = rport_to_shost(rport); 2795 struct Scsi_Host *shost = rport_to_shost(rport);
2787 struct fc_internal *i = to_fc_internal(shost->transportt);
2788 int timeout = rport->dev_loss_tmo; 2796 int timeout = rport->dev_loss_tmo;
2789 unsigned long flags; 2797 unsigned long flags;
2790 2798
@@ -2830,7 +2838,7 @@ fc_remote_port_delete(struct fc_rport *rport)
2830 2838
2831 /* see if we need to kill io faster than waiting for device loss */ 2839 /* see if we need to kill io faster than waiting for device loss */
2832 if ((rport->fast_io_fail_tmo != -1) && 2840 if ((rport->fast_io_fail_tmo != -1) &&
2833 (rport->fast_io_fail_tmo < timeout) && (i->f->terminate_rport_io)) 2841 (rport->fast_io_fail_tmo < timeout))
2834 fc_queue_devloss_work(shost, &rport->fail_io_work, 2842 fc_queue_devloss_work(shost, &rport->fail_io_work,
2835 rport->fast_io_fail_tmo * HZ); 2843 rport->fast_io_fail_tmo * HZ);
2836 2844
@@ -2906,7 +2914,8 @@ fc_remote_port_rolechg(struct fc_rport *rport, u32 roles)
2906 fc_flush_devloss(shost); 2914 fc_flush_devloss(shost);
2907 2915
2908 spin_lock_irqsave(shost->host_lock, flags); 2916 spin_lock_irqsave(shost->host_lock, flags);
2909 rport->flags &= ~FC_RPORT_DEVLOSS_PENDING; 2917 rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT |
2918 FC_RPORT_DEVLOSS_PENDING);
2910 spin_unlock_irqrestore(shost->host_lock, flags); 2919 spin_unlock_irqrestore(shost->host_lock, flags);
2911 2920
2912 /* ensure any stgt delete functions are done */ 2921 /* ensure any stgt delete functions are done */
@@ -3001,6 +3010,7 @@ fc_timeout_deleted_rport(struct work_struct *work)
3001 rport->supported_classes = FC_COS_UNSPECIFIED; 3010 rport->supported_classes = FC_COS_UNSPECIFIED;
3002 rport->roles = FC_PORT_ROLE_UNKNOWN; 3011 rport->roles = FC_PORT_ROLE_UNKNOWN;
3003 rport->port_state = FC_PORTSTATE_NOTPRESENT; 3012 rport->port_state = FC_PORTSTATE_NOTPRESENT;
3013 rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT;
3004 3014
3005 /* remove the identifiers that aren't used in the consisting binding */ 3015 /* remove the identifiers that aren't used in the consisting binding */
3006 switch (fc_host->tgtid_bind_type) { 3016 switch (fc_host->tgtid_bind_type) {
@@ -3043,13 +3053,12 @@ fc_timeout_fail_rport_io(struct work_struct *work)
3043{ 3053{
3044 struct fc_rport *rport = 3054 struct fc_rport *rport =
3045 container_of(work, struct fc_rport, fail_io_work.work); 3055 container_of(work, struct fc_rport, fail_io_work.work);
3046 struct Scsi_Host *shost = rport_to_shost(rport);
3047 struct fc_internal *i = to_fc_internal(shost->transportt);
3048 3056
3049 if (rport->port_state != FC_PORTSTATE_BLOCKED) 3057 if (rport->port_state != FC_PORTSTATE_BLOCKED)
3050 return; 3058 return;
3051 3059
3052 i->f->terminate_rport_io(rport); 3060 rport->flags |= FC_RPORT_FAST_FAIL_TIMEDOUT;
3061 fc_terminate_rport_io(rport);
3053} 3062}
3054 3063
3055/** 3064/**
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 0ce5f7cdfe2a..4a803ebaf508 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -138,7 +138,7 @@ static ssize_t
138show_ep_handle(struct device *dev, struct device_attribute *attr, char *buf) 138show_ep_handle(struct device *dev, struct device_attribute *attr, char *buf)
139{ 139{
140 struct iscsi_endpoint *ep = iscsi_dev_to_endpoint(dev); 140 struct iscsi_endpoint *ep = iscsi_dev_to_endpoint(dev);
141 return sprintf(buf, "%u\n", ep->id); 141 return sprintf(buf, "%llu\n", (unsigned long long) ep->id);
142} 142}
143static ISCSI_ATTR(ep, handle, S_IRUGO, show_ep_handle, NULL); 143static ISCSI_ATTR(ep, handle, S_IRUGO, show_ep_handle, NULL);
144 144
@@ -156,7 +156,7 @@ static struct attribute_group iscsi_endpoint_group = {
156static int iscsi_match_epid(struct device *dev, void *data) 156static int iscsi_match_epid(struct device *dev, void *data)
157{ 157{
158 struct iscsi_endpoint *ep = iscsi_dev_to_endpoint(dev); 158 struct iscsi_endpoint *ep = iscsi_dev_to_endpoint(dev);
159 unsigned int *epid = (unsigned int *) data; 159 uint64_t *epid = (uint64_t *) data;
160 160
161 return *epid == ep->id; 161 return *epid == ep->id;
162} 162}
@@ -166,7 +166,7 @@ iscsi_create_endpoint(int dd_size)
166{ 166{
167 struct device *dev; 167 struct device *dev;
168 struct iscsi_endpoint *ep; 168 struct iscsi_endpoint *ep;
169 unsigned int id; 169 uint64_t id;
170 int err; 170 int err;
171 171
172 for (id = 1; id < ISCSI_MAX_EPID; id++) { 172 for (id = 1; id < ISCSI_MAX_EPID; id++) {
@@ -187,7 +187,8 @@ iscsi_create_endpoint(int dd_size)
187 187
188 ep->id = id; 188 ep->id = id;
189 ep->dev.class = &iscsi_endpoint_class; 189 ep->dev.class = &iscsi_endpoint_class;
190 snprintf(ep->dev.bus_id, BUS_ID_SIZE, "ep-%u", id); 190 snprintf(ep->dev.bus_id, BUS_ID_SIZE, "ep-%llu",
191 (unsigned long long) id);
191 err = device_register(&ep->dev); 192 err = device_register(&ep->dev);
192 if (err) 193 if (err)
193 goto free_ep; 194 goto free_ep;
@@ -374,10 +375,10 @@ int iscsi_session_chkready(struct iscsi_cls_session *session)
374 err = 0; 375 err = 0;
375 break; 376 break;
376 case ISCSI_SESSION_FAILED: 377 case ISCSI_SESSION_FAILED:
377 err = DID_IMM_RETRY << 16; 378 err = DID_TRANSPORT_DISRUPTED << 16;
378 break; 379 break;
379 case ISCSI_SESSION_FREE: 380 case ISCSI_SESSION_FREE:
380 err = DID_NO_CONNECT << 16; 381 err = DID_TRANSPORT_FAILFAST << 16;
381 break; 382 break;
382 default: 383 default:
383 err = DID_NO_CONNECT << 16; 384 err = DID_NO_CONNECT << 16;
@@ -1010,7 +1011,7 @@ int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr,
1010 1011
1011 skb = alloc_skb(len, GFP_ATOMIC); 1012 skb = alloc_skb(len, GFP_ATOMIC);
1012 if (!skb) { 1013 if (!skb) {
1013 iscsi_conn_error(conn, ISCSI_ERR_CONN_FAILED); 1014 iscsi_conn_error_event(conn, ISCSI_ERR_CONN_FAILED);
1014 iscsi_cls_conn_printk(KERN_ERR, conn, "can not deliver " 1015 iscsi_cls_conn_printk(KERN_ERR, conn, "can not deliver "
1015 "control PDU: OOM\n"); 1016 "control PDU: OOM\n");
1016 return -ENOMEM; 1017 return -ENOMEM;
@@ -1031,7 +1032,7 @@ int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr,
1031} 1032}
1032EXPORT_SYMBOL_GPL(iscsi_recv_pdu); 1033EXPORT_SYMBOL_GPL(iscsi_recv_pdu);
1033 1034
1034void iscsi_conn_error(struct iscsi_cls_conn *conn, enum iscsi_err error) 1035void iscsi_conn_error_event(struct iscsi_cls_conn *conn, enum iscsi_err error)
1035{ 1036{
1036 struct nlmsghdr *nlh; 1037 struct nlmsghdr *nlh;
1037 struct sk_buff *skb; 1038 struct sk_buff *skb;
@@ -1063,7 +1064,7 @@ void iscsi_conn_error(struct iscsi_cls_conn *conn, enum iscsi_err error)
1063 iscsi_cls_conn_printk(KERN_INFO, conn, "detected conn error (%d)\n", 1064 iscsi_cls_conn_printk(KERN_INFO, conn, "detected conn error (%d)\n",
1064 error); 1065 error);
1065} 1066}
1066EXPORT_SYMBOL_GPL(iscsi_conn_error); 1067EXPORT_SYMBOL_GPL(iscsi_conn_error_event);
1067 1068
1068static int 1069static int
1069iscsi_if_send_reply(int pid, int seq, int type, int done, int multi, 1070iscsi_if_send_reply(int pid, int seq, int type, int done, int multi,
diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c
index b29360ed0bdc..7c2d28924d2a 100644
--- a/drivers/scsi/scsi_transport_spi.c
+++ b/drivers/scsi/scsi_transport_spi.c
@@ -109,7 +109,9 @@ static int spi_execute(struct scsi_device *sdev, const void *cmd,
109 for(i = 0; i < DV_RETRIES; i++) { 109 for(i = 0; i < DV_RETRIES; i++) {
110 result = scsi_execute(sdev, cmd, dir, buffer, bufflen, 110 result = scsi_execute(sdev, cmd, dir, buffer, bufflen,
111 sense, DV_TIMEOUT, /* retries */ 1, 111 sense, DV_TIMEOUT, /* retries */ 1,
112 REQ_FAILFAST); 112 REQ_FAILFAST_DEV |
113 REQ_FAILFAST_TRANSPORT |
114 REQ_FAILFAST_DRIVER);
113 if (result & DRIVER_SENSE) { 115 if (result & DRIVER_SENSE) {
114 struct scsi_sense_hdr sshdr_tmp; 116 struct scsi_sense_hdr sshdr_tmp;
115 if (!sshdr) 117 if (!sshdr)
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index a7b53be63367..7c4d2e68df1c 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -384,7 +384,7 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
384 sector_t block = rq->sector; 384 sector_t block = rq->sector;
385 sector_t threshold; 385 sector_t threshold;
386 unsigned int this_count = rq->nr_sectors; 386 unsigned int this_count = rq->nr_sectors;
387 int ret; 387 int ret, host_dif;
388 388
389 if (rq->cmd_type == REQ_TYPE_BLOCK_PC) { 389 if (rq->cmd_type == REQ_TYPE_BLOCK_PC) {
390 ret = scsi_setup_blk_pc_cmnd(sdp, rq); 390 ret = scsi_setup_blk_pc_cmnd(sdp, rq);
@@ -515,7 +515,8 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
515 rq->nr_sectors)); 515 rq->nr_sectors));
516 516
517 /* Set RDPROTECT/WRPROTECT if disk is formatted with DIF */ 517 /* Set RDPROTECT/WRPROTECT if disk is formatted with DIF */
518 if (scsi_host_dif_capable(sdp->host, sdkp->protection_type)) 518 host_dif = scsi_host_dif_capable(sdp->host, sdkp->protection_type);
519 if (host_dif)
519 SCpnt->cmnd[1] = 1 << 5; 520 SCpnt->cmnd[1] = 1 << 5;
520 else 521 else
521 SCpnt->cmnd[1] = 0; 522 SCpnt->cmnd[1] = 0;
@@ -573,8 +574,9 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
573 SCpnt->sdb.length = this_count * sdp->sector_size; 574 SCpnt->sdb.length = this_count * sdp->sector_size;
574 575
575 /* If DIF or DIX is enabled, tell HBA how to handle request */ 576 /* If DIF or DIX is enabled, tell HBA how to handle request */
576 if (sdkp->protection_type || scsi_prot_sg_count(SCpnt)) 577 if (host_dif || scsi_prot_sg_count(SCpnt))
577 sd_dif_op(SCpnt, sdkp->protection_type, scsi_prot_sg_count(SCpnt)); 578 sd_dif_op(SCpnt, host_dif, scsi_prot_sg_count(SCpnt),
579 sdkp->protection_type);
578 580
579 /* 581 /*
580 * We shouldn't disconnect in the middle of a sector, so with a dumb 582 * We shouldn't disconnect in the middle of a sector, so with a dumb
@@ -1252,14 +1254,12 @@ void sd_read_protection_type(struct scsi_disk *sdkp, unsigned char *buffer)
1252 else 1254 else
1253 type = ((buffer[12] >> 1) & 7) + 1; /* P_TYPE 0 = Type 1 */ 1255 type = ((buffer[12] >> 1) & 7) + 1; /* P_TYPE 0 = Type 1 */
1254 1256
1257 sdkp->protection_type = type;
1258
1255 switch (type) { 1259 switch (type) {
1256 case SD_DIF_TYPE0_PROTECTION: 1260 case SD_DIF_TYPE0_PROTECTION:
1257 sdkp->protection_type = 0;
1258 break;
1259
1260 case SD_DIF_TYPE1_PROTECTION: 1261 case SD_DIF_TYPE1_PROTECTION:
1261 case SD_DIF_TYPE3_PROTECTION: 1262 case SD_DIF_TYPE3_PROTECTION:
1262 sdkp->protection_type = type;
1263 break; 1263 break;
1264 1264
1265 case SD_DIF_TYPE2_PROTECTION: 1265 case SD_DIF_TYPE2_PROTECTION:
@@ -1277,7 +1277,6 @@ void sd_read_protection_type(struct scsi_disk *sdkp, unsigned char *buffer)
1277 return; 1277 return;
1278 1278
1279disable: 1279disable:
1280 sdkp->protection_type = 0;
1281 sdkp->capacity = 0; 1280 sdkp->capacity = 0;
1282} 1281}
1283 1282
diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h
index 95b9f06534d5..75638e7d3f66 100644
--- a/drivers/scsi/sd.h
+++ b/drivers/scsi/sd.h
@@ -97,19 +97,28 @@ struct sd_dif_tuple {
97 __be32 ref_tag; /* Target LBA or indirect LBA */ 97 __be32 ref_tag; /* Target LBA or indirect LBA */
98}; 98};
99 99
100#if defined(CONFIG_BLK_DEV_INTEGRITY) 100#ifdef CONFIG_BLK_DEV_INTEGRITY
101 101
102extern void sd_dif_op(struct scsi_cmnd *, unsigned int, unsigned int); 102extern void sd_dif_op(struct scsi_cmnd *, unsigned int, unsigned int, unsigned int);
103extern void sd_dif_config_host(struct scsi_disk *); 103extern void sd_dif_config_host(struct scsi_disk *);
104extern int sd_dif_prepare(struct request *rq, sector_t, unsigned int); 104extern int sd_dif_prepare(struct request *rq, sector_t, unsigned int);
105extern void sd_dif_complete(struct scsi_cmnd *, unsigned int); 105extern void sd_dif_complete(struct scsi_cmnd *, unsigned int);
106 106
107#else /* CONFIG_BLK_DEV_INTEGRITY */ 107#else /* CONFIG_BLK_DEV_INTEGRITY */
108 108
109#define sd_dif_op(a, b, c) do { } while (0) 109static inline void sd_dif_op(struct scsi_cmnd *cmd, unsigned int a, unsigned int b, unsigned int c)
110#define sd_dif_config_host(a) do { } while (0) 110{
111#define sd_dif_prepare(a, b, c) (0) 111}
112#define sd_dif_complete(a, b) (0) 112static inline void sd_dif_config_host(struct scsi_disk *disk)
113{
114}
115static inline int sd_dif_prepare(struct request *rq, sector_t s, unsigned int a)
116{
117 return 0;
118}
119static inline void sd_dif_complete(struct scsi_cmnd *cmd, unsigned int a)
120{
121}
113 122
114#endif /* CONFIG_BLK_DEV_INTEGRITY */ 123#endif /* CONFIG_BLK_DEV_INTEGRITY */
115 124
diff --git a/drivers/scsi/sd_dif.c b/drivers/scsi/sd_dif.c
index 4d17f3d35aac..3ebb1f289490 100644
--- a/drivers/scsi/sd_dif.c
+++ b/drivers/scsi/sd_dif.c
@@ -311,25 +311,26 @@ void sd_dif_config_host(struct scsi_disk *sdkp)
311 struct scsi_device *sdp = sdkp->device; 311 struct scsi_device *sdp = sdkp->device;
312 struct gendisk *disk = sdkp->disk; 312 struct gendisk *disk = sdkp->disk;
313 u8 type = sdkp->protection_type; 313 u8 type = sdkp->protection_type;
314 int dif, dix;
314 315
315 /* If this HBA doesn't support DIX, resort to normal I/O or DIF */ 316 dif = scsi_host_dif_capable(sdp->host, type);
316 if (scsi_host_dix_capable(sdp->host, type) == 0) { 317 dix = scsi_host_dix_capable(sdp->host, type);
317 318
318 if (type == SD_DIF_TYPE0_PROTECTION) 319 if (!dix && scsi_host_dix_capable(sdp->host, 0)) {
319 return; 320 dif = 0; dix = 1;
320 321 }
321 if (scsi_host_dif_capable(sdp->host, type) == 0) {
322 sd_printk(KERN_INFO, sdkp, "Type %d protection " \
323 "unsupported by HBA. Disabling DIF.\n", type);
324 sdkp->protection_type = 0;
325 return;
326 }
327 322
328 sd_printk(KERN_INFO, sdkp, "Enabling DIF Type %d protection\n", 323 if (type) {
329 type); 324 if (dif)
325 sd_printk(KERN_NOTICE, sdkp,
326 "Enabling DIF Type %d protection\n", type);
327 else
328 sd_printk(KERN_NOTICE, sdkp,
329 "Disabling DIF Type %d protection\n", type);
330 }
330 331
332 if (!dix)
331 return; 333 return;
332 }
333 334
334 /* Enable DMA of protection information */ 335 /* Enable DMA of protection information */
335 if (scsi_host_get_guard(sdkp->device->host) & SHOST_DIX_GUARD_IP) 336 if (scsi_host_get_guard(sdkp->device->host) & SHOST_DIX_GUARD_IP)
@@ -343,17 +344,17 @@ void sd_dif_config_host(struct scsi_disk *sdkp)
343 else 344 else
344 blk_integrity_register(disk, &dif_type1_integrity_crc); 345 blk_integrity_register(disk, &dif_type1_integrity_crc);
345 346
346 sd_printk(KERN_INFO, sdkp, 347 sd_printk(KERN_NOTICE, sdkp,
347 "Enabling %s integrity protection\n", disk->integrity->name); 348 "Enabling DIX %s protection\n", disk->integrity->name);
348 349
349 /* Signal to block layer that we support sector tagging */ 350 /* Signal to block layer that we support sector tagging */
350 if (type && sdkp->ATO) { 351 if (dif && type && sdkp->ATO) {
351 if (type == SD_DIF_TYPE3_PROTECTION) 352 if (type == SD_DIF_TYPE3_PROTECTION)
352 disk->integrity->tag_size = sizeof(u16) + sizeof(u32); 353 disk->integrity->tag_size = sizeof(u16) + sizeof(u32);
353 else 354 else
354 disk->integrity->tag_size = sizeof(u16); 355 disk->integrity->tag_size = sizeof(u16);
355 356
356 sd_printk(KERN_INFO, sdkp, "DIF application tag size %u\n", 357 sd_printk(KERN_NOTICE, sdkp, "DIF application tag size %u\n",
357 disk->integrity->tag_size); 358 disk->integrity->tag_size);
358 } 359 }
359} 360}
@@ -361,7 +362,7 @@ void sd_dif_config_host(struct scsi_disk *sdkp)
361/* 362/*
362 * DIF DMA operation magic decoder ring. 363 * DIF DMA operation magic decoder ring.
363 */ 364 */
364void sd_dif_op(struct scsi_cmnd *scmd, unsigned int dif, unsigned int dix) 365void sd_dif_op(struct scsi_cmnd *scmd, unsigned int dif, unsigned int dix, unsigned int type)
365{ 366{
366 int csum_convert, prot_op; 367 int csum_convert, prot_op;
367 368
@@ -406,7 +407,8 @@ void sd_dif_op(struct scsi_cmnd *scmd, unsigned int dif, unsigned int dix)
406 } 407 }
407 408
408 scsi_set_prot_op(scmd, prot_op); 409 scsi_set_prot_op(scmd, prot_op);
409 scsi_set_prot_type(scmd, dif); 410 if (dif)
411 scsi_set_prot_type(scmd, type);
410} 412}
411 413
412/* 414/*
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-18 10:15:35 -0500