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authorDavid S. Miller <davem@davemloft.net>2009-06-15 06:02:23 -0400
committerDavid S. Miller <davem@davemloft.net>2009-06-15 06:02:23 -0400
commit9cbc1cb8cd46ce1f7645b9de249b2ce8460129bb (patch)
tree8d104ec2a459346b99413b0b77421ca7b9936c1a /drivers/scsi/lpfc/lpfc_init.c
parentca44d6e60f9de26281fda203f58b570e1748c015 (diff)
parent45e3e1935e2857c54783291107d33323b3ef33c8 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: Documentation/feature-removal-schedule.txt drivers/scsi/fcoe/fcoe.c net/core/drop_monitor.c net/core/net-traces.c
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_init.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_init.c5626
1 files changed, 5050 insertions, 576 deletions
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 86d1bdcbf2d..2f5907f92ee 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.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) 2004-2008 Emulex. All rights reserved. * 4 * Copyright (C) 2004-2009 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 *
@@ -34,8 +34,10 @@
34#include <scsi/scsi_host.h> 34#include <scsi/scsi_host.h>
35#include <scsi/scsi_transport_fc.h> 35#include <scsi/scsi_transport_fc.h>
36 36
37#include "lpfc_hw4.h"
37#include "lpfc_hw.h" 38#include "lpfc_hw.h"
38#include "lpfc_sli.h" 39#include "lpfc_sli.h"
40#include "lpfc_sli4.h"
39#include "lpfc_nl.h" 41#include "lpfc_nl.h"
40#include "lpfc_disc.h" 42#include "lpfc_disc.h"
41#include "lpfc_scsi.h" 43#include "lpfc_scsi.h"
@@ -51,9 +53,23 @@ char *_dump_buf_dif;
51unsigned long _dump_buf_dif_order; 53unsigned long _dump_buf_dif_order;
52spinlock_t _dump_buf_lock; 54spinlock_t _dump_buf_lock;
53 55
54static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int);
55static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); 56static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
56static int lpfc_post_rcv_buf(struct lpfc_hba *); 57static int lpfc_post_rcv_buf(struct lpfc_hba *);
58static int lpfc_sli4_queue_create(struct lpfc_hba *);
59static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
60static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
61static int lpfc_setup_endian_order(struct lpfc_hba *);
62static int lpfc_sli4_read_config(struct lpfc_hba *);
63static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
64static void lpfc_free_sgl_list(struct lpfc_hba *);
65static int lpfc_init_sgl_list(struct lpfc_hba *);
66static int lpfc_init_active_sgl_array(struct lpfc_hba *);
67static void lpfc_free_active_sgl(struct lpfc_hba *);
68static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
69static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
70static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
71static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
72static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
57 73
58static struct scsi_transport_template *lpfc_transport_template = NULL; 74static struct scsi_transport_template *lpfc_transport_template = NULL;
59static struct scsi_transport_template *lpfc_vport_transport_template = NULL; 75static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
@@ -92,7 +108,7 @@ lpfc_config_port_prep(struct lpfc_hba *phba)
92 return -ENOMEM; 108 return -ENOMEM;
93 } 109 }
94 110
95 mb = &pmb->mb; 111 mb = &pmb->u.mb;
96 phba->link_state = LPFC_INIT_MBX_CMDS; 112 phba->link_state = LPFC_INIT_MBX_CMDS;
97 113
98 if (lpfc_is_LC_HBA(phba->pcidev->device)) { 114 if (lpfc_is_LC_HBA(phba->pcidev->device)) {
@@ -205,6 +221,11 @@ lpfc_config_port_prep(struct lpfc_hba *phba)
205 mb->mbxCommand, mb->mbxStatus); 221 mb->mbxCommand, mb->mbxStatus);
206 mb->un.varDmp.word_cnt = 0; 222 mb->un.varDmp.word_cnt = 0;
207 } 223 }
224 /* dump mem may return a zero when finished or we got a
225 * mailbox error, either way we are done.
226 */
227 if (mb->un.varDmp.word_cnt == 0)
228 break;
208 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) 229 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
209 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; 230 mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
210 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, 231 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
@@ -233,7 +254,7 @@ out_free_mbox:
233static void 254static void
234lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) 255lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
235{ 256{
236 if (pmboxq->mb.mbxStatus == MBX_SUCCESS) 257 if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
237 phba->temp_sensor_support = 1; 258 phba->temp_sensor_support = 1;
238 else 259 else
239 phba->temp_sensor_support = 0; 260 phba->temp_sensor_support = 0;
@@ -260,7 +281,7 @@ lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
260 /* character array used for decoding dist type. */ 281 /* character array used for decoding dist type. */
261 char dist_char[] = "nabx"; 282 char dist_char[] = "nabx";
262 283
263 if (pmboxq->mb.mbxStatus != MBX_SUCCESS) { 284 if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
264 mempool_free(pmboxq, phba->mbox_mem_pool); 285 mempool_free(pmboxq, phba->mbox_mem_pool);
265 return; 286 return;
266 } 287 }
@@ -268,7 +289,7 @@ lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
268 prg = (struct prog_id *) &prog_id_word; 289 prg = (struct prog_id *) &prog_id_word;
269 290
270 /* word 7 contain option rom version */ 291 /* word 7 contain option rom version */
271 prog_id_word = pmboxq->mb.un.varWords[7]; 292 prog_id_word = pmboxq->u.mb.un.varWords[7];
272 293
273 /* Decode the Option rom version word to a readable string */ 294 /* Decode the Option rom version word to a readable string */
274 if (prg->dist < 4) 295 if (prg->dist < 4)
@@ -325,7 +346,7 @@ lpfc_config_port_post(struct lpfc_hba *phba)
325 phba->link_state = LPFC_HBA_ERROR; 346 phba->link_state = LPFC_HBA_ERROR;
326 return -ENOMEM; 347 return -ENOMEM;
327 } 348 }
328 mb = &pmb->mb; 349 mb = &pmb->u.mb;
329 350
330 /* Get login parameters for NID. */ 351 /* Get login parameters for NID. */
331 lpfc_read_sparam(phba, pmb, 0); 352 lpfc_read_sparam(phba, pmb, 0);
@@ -364,6 +385,7 @@ lpfc_config_port_post(struct lpfc_hba *phba)
364 /* Update the fc_host data structures with new wwn. */ 385 /* Update the fc_host data structures with new wwn. */
365 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); 386 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
366 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); 387 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
388 fc_host_max_npiv_vports(shost) = phba->max_vpi;
367 389
368 /* If no serial number in VPD data, use low 6 bytes of WWNN */ 390 /* If no serial number in VPD data, use low 6 bytes of WWNN */
369 /* This should be consolidated into parse_vpd ? - mr */ 391 /* This should be consolidated into parse_vpd ? - mr */
@@ -460,17 +482,18 @@ lpfc_config_port_post(struct lpfc_hba *phba)
460 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, 482 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
461 "0352 Config MSI mailbox command " 483 "0352 Config MSI mailbox command "
462 "failed, mbxCmd x%x, mbxStatus x%x\n", 484 "failed, mbxCmd x%x, mbxStatus x%x\n",
463 pmb->mb.mbxCommand, pmb->mb.mbxStatus); 485 pmb->u.mb.mbxCommand,
486 pmb->u.mb.mbxStatus);
464 mempool_free(pmb, phba->mbox_mem_pool); 487 mempool_free(pmb, phba->mbox_mem_pool);
465 return -EIO; 488 return -EIO;
466 } 489 }
467 } 490 }
468 491
492 spin_lock_irq(&phba->hbalock);
469 /* Initialize ERATT handling flag */ 493 /* Initialize ERATT handling flag */
470 phba->hba_flag &= ~HBA_ERATT_HANDLED; 494 phba->hba_flag &= ~HBA_ERATT_HANDLED;
471 495
472 /* Enable appropriate host interrupts */ 496 /* Enable appropriate host interrupts */
473 spin_lock_irq(&phba->hbalock);
474 status = readl(phba->HCregaddr); 497 status = readl(phba->HCregaddr);
475 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; 498 status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
476 if (psli->num_rings > 0) 499 if (psli->num_rings > 0)
@@ -571,16 +594,20 @@ lpfc_hba_down_prep(struct lpfc_hba *phba)
571{ 594{
572 struct lpfc_vport **vports; 595 struct lpfc_vport **vports;
573 int i; 596 int i;
574 /* Disable interrupts */ 597
575 writel(0, phba->HCregaddr); 598 if (phba->sli_rev <= LPFC_SLI_REV3) {
576 readl(phba->HCregaddr); /* flush */ 599 /* Disable interrupts */
600 writel(0, phba->HCregaddr);
601 readl(phba->HCregaddr); /* flush */
602 }
577 603
578 if (phba->pport->load_flag & FC_UNLOADING) 604 if (phba->pport->load_flag & FC_UNLOADING)
579 lpfc_cleanup_discovery_resources(phba->pport); 605 lpfc_cleanup_discovery_resources(phba->pport);
580 else { 606 else {
581 vports = lpfc_create_vport_work_array(phba); 607 vports = lpfc_create_vport_work_array(phba);
582 if (vports != NULL) 608 if (vports != NULL)
583 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) 609 for (i = 0; i <= phba->max_vports &&
610 vports[i] != NULL; i++)
584 lpfc_cleanup_discovery_resources(vports[i]); 611 lpfc_cleanup_discovery_resources(vports[i]);
585 lpfc_destroy_vport_work_array(phba, vports); 612 lpfc_destroy_vport_work_array(phba, vports);
586 } 613 }
@@ -588,7 +615,7 @@ lpfc_hba_down_prep(struct lpfc_hba *phba)
588} 615}
589 616
590/** 617/**
591 * lpfc_hba_down_post - Perform lpfc uninitialization after HBA reset 618 * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
592 * @phba: pointer to lpfc HBA data structure. 619 * @phba: pointer to lpfc HBA data structure.
593 * 620 *
594 * This routine will do uninitialization after the HBA is reset when bring 621 * This routine will do uninitialization after the HBA is reset when bring
@@ -598,8 +625,8 @@ lpfc_hba_down_prep(struct lpfc_hba *phba)
598 * 0 - sucess. 625 * 0 - sucess.
599 * Any other value - error. 626 * Any other value - error.
600 **/ 627 **/
601int 628static int
602lpfc_hba_down_post(struct lpfc_hba *phba) 629lpfc_hba_down_post_s3(struct lpfc_hba *phba)
603{ 630{
604 struct lpfc_sli *psli = &phba->sli; 631 struct lpfc_sli *psli = &phba->sli;
605 struct lpfc_sli_ring *pring; 632 struct lpfc_sli_ring *pring;
@@ -642,6 +669,77 @@ lpfc_hba_down_post(struct lpfc_hba *phba)
642 669
643 return 0; 670 return 0;
644} 671}
672/**
673 * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
674 * @phba: pointer to lpfc HBA data structure.
675 *
676 * This routine will do uninitialization after the HBA is reset when bring
677 * down the SLI Layer.
678 *
679 * Return codes
680 * 0 - sucess.
681 * Any other value - error.
682 **/
683static int
684lpfc_hba_down_post_s4(struct lpfc_hba *phba)
685{
686 struct lpfc_scsi_buf *psb, *psb_next;
687 LIST_HEAD(aborts);
688 int ret;
689 unsigned long iflag = 0;
690 ret = lpfc_hba_down_post_s3(phba);
691 if (ret)
692 return ret;
693 /* At this point in time the HBA is either reset or DOA. Either
694 * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
695 * on the lpfc_sgl_list so that it can either be freed if the
696 * driver is unloading or reposted if the driver is restarting
697 * the port.
698 */
699 spin_lock_irq(&phba->hbalock); /* required for lpfc_sgl_list and */
700 /* scsl_buf_list */
701 /* abts_sgl_list_lock required because worker thread uses this
702 * list.
703 */
704 spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
705 list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
706 &phba->sli4_hba.lpfc_sgl_list);
707 spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
708 /* abts_scsi_buf_list_lock required because worker thread uses this
709 * list.
710 */
711 spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
712 list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
713 &aborts);
714 spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
715 spin_unlock_irq(&phba->hbalock);
716
717 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
718 psb->pCmd = NULL;
719 psb->status = IOSTAT_SUCCESS;
720 }
721 spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
722 list_splice(&aborts, &phba->lpfc_scsi_buf_list);
723 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
724 return 0;
725}
726
727/**
728 * lpfc_hba_down_post - Wrapper func for hba down post routine
729 * @phba: pointer to lpfc HBA data structure.
730 *
731 * This routine wraps the actual SLI3 or SLI4 routine for performing
732 * uninitialization after the HBA is reset when bring down the SLI Layer.
733 *
734 * Return codes
735 * 0 - sucess.
736 * Any other value - error.
737 **/
738int
739lpfc_hba_down_post(struct lpfc_hba *phba)
740{
741 return (*phba->lpfc_hba_down_post)(phba);
742}
645 743
646/** 744/**
647 * lpfc_hb_timeout - The HBA-timer timeout handler 745 * lpfc_hb_timeout - The HBA-timer timeout handler
@@ -809,7 +907,7 @@ lpfc_hb_timeout_handler(struct lpfc_hba *phba)
809 "taking this port offline.\n"); 907 "taking this port offline.\n");
810 908
811 spin_lock_irq(&phba->hbalock); 909 spin_lock_irq(&phba->hbalock);
812 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 910 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
813 spin_unlock_irq(&phba->hbalock); 911 spin_unlock_irq(&phba->hbalock);
814 912
815 lpfc_offline_prep(phba); 913 lpfc_offline_prep(phba);
@@ -834,13 +932,15 @@ lpfc_offline_eratt(struct lpfc_hba *phba)
834 struct lpfc_sli *psli = &phba->sli; 932 struct lpfc_sli *psli = &phba->sli;
835 933
836 spin_lock_irq(&phba->hbalock); 934 spin_lock_irq(&phba->hbalock);
837 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 935 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
838 spin_unlock_irq(&phba->hbalock); 936 spin_unlock_irq(&phba->hbalock);
839 lpfc_offline_prep(phba); 937 lpfc_offline_prep(phba);
840 938
841 lpfc_offline(phba); 939 lpfc_offline(phba);
842 lpfc_reset_barrier(phba); 940 lpfc_reset_barrier(phba);
941 spin_lock_irq(&phba->hbalock);
843 lpfc_sli_brdreset(phba); 942 lpfc_sli_brdreset(phba);
943 spin_unlock_irq(&phba->hbalock);
844 lpfc_hba_down_post(phba); 944 lpfc_hba_down_post(phba);
845 lpfc_sli_brdready(phba, HS_MBRDY); 945 lpfc_sli_brdready(phba, HS_MBRDY);
846 lpfc_unblock_mgmt_io(phba); 946 lpfc_unblock_mgmt_io(phba);
@@ -849,6 +949,25 @@ lpfc_offline_eratt(struct lpfc_hba *phba)
849} 949}
850 950
851/** 951/**
952 * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
953 * @phba: pointer to lpfc hba data structure.
954 *
955 * This routine is called to bring a SLI4 HBA offline when HBA hardware error
956 * other than Port Error 6 has been detected.
957 **/
958static void
959lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
960{
961 lpfc_offline_prep(phba);
962 lpfc_offline(phba);
963 lpfc_sli4_brdreset(phba);
964 lpfc_hba_down_post(phba);
965 lpfc_sli4_post_status_check(phba);
966 lpfc_unblock_mgmt_io(phba);
967 phba->link_state = LPFC_HBA_ERROR;
968}
969
970/**
852 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler 971 * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
853 * @phba: pointer to lpfc hba data structure. 972 * @phba: pointer to lpfc hba data structure.
854 * 973 *
@@ -864,6 +983,16 @@ lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
864 struct lpfc_sli_ring *pring; 983 struct lpfc_sli_ring *pring;
865 struct lpfc_sli *psli = &phba->sli; 984 struct lpfc_sli *psli = &phba->sli;
866 985
986 /* If the pci channel is offline, ignore possible errors,
987 * since we cannot communicate with the pci card anyway.
988 */
989 if (pci_channel_offline(phba->pcidev)) {
990 spin_lock_irq(&phba->hbalock);
991 phba->hba_flag &= ~DEFER_ERATT;
992 spin_unlock_irq(&phba->hbalock);
993 return;
994 }
995
867 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
868 "0479 Deferred Adapter Hardware Error " 997 "0479 Deferred Adapter Hardware Error "
869 "Data: x%x x%x x%x\n", 998 "Data: x%x x%x x%x\n",
@@ -871,7 +1000,7 @@ lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
871 phba->work_status[0], phba->work_status[1]); 1000 phba->work_status[0], phba->work_status[1]);
872 1001
873 spin_lock_irq(&phba->hbalock); 1002 spin_lock_irq(&phba->hbalock);
874 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 1003 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
875 spin_unlock_irq(&phba->hbalock); 1004 spin_unlock_irq(&phba->hbalock);
876 1005
877 1006
@@ -909,13 +1038,30 @@ lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
909 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) 1038 if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
910 phba->work_hs = old_host_status & ~HS_FFER1; 1039 phba->work_hs = old_host_status & ~HS_FFER1;
911 1040
1041 spin_lock_irq(&phba->hbalock);
912 phba->hba_flag &= ~DEFER_ERATT; 1042 phba->hba_flag &= ~DEFER_ERATT;
1043 spin_unlock_irq(&phba->hbalock);
913 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); 1044 phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
914 phba->work_status[1] = readl(phba->MBslimaddr + 0xac); 1045 phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
915} 1046}
916 1047
1048static void
1049lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1050{
1051 struct lpfc_board_event_header board_event;
1052 struct Scsi_Host *shost;
1053
1054 board_event.event_type = FC_REG_BOARD_EVENT;
1055 board_event.subcategory = LPFC_EVENT_PORTINTERR;
1056 shost = lpfc_shost_from_vport(phba->pport);
1057 fc_host_post_vendor_event(shost, fc_get_event_number(),
1058 sizeof(board_event),
1059 (char *) &board_event,
1060 LPFC_NL_VENDOR_ID);
1061}
1062
917/** 1063/**
918 * lpfc_handle_eratt - The HBA hardware error handler 1064 * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
919 * @phba: pointer to lpfc hba data structure. 1065 * @phba: pointer to lpfc hba data structure.
920 * 1066 *
921 * This routine is invoked to handle the following HBA hardware error 1067 * This routine is invoked to handle the following HBA hardware error
@@ -924,8 +1070,8 @@ lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
924 * 2 - DMA ring index out of range 1070 * 2 - DMA ring index out of range
925 * 3 - Mailbox command came back as unknown 1071 * 3 - Mailbox command came back as unknown
926 **/ 1072 **/
927void 1073static void
928lpfc_handle_eratt(struct lpfc_hba *phba) 1074lpfc_handle_eratt_s3(struct lpfc_hba *phba)
929{ 1075{
930 struct lpfc_vport *vport = phba->pport; 1076 struct lpfc_vport *vport = phba->pport;
931 struct lpfc_sli *psli = &phba->sli; 1077 struct lpfc_sli *psli = &phba->sli;
@@ -934,24 +1080,23 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
934 unsigned long temperature; 1080 unsigned long temperature;
935 struct temp_event temp_event_data; 1081 struct temp_event temp_event_data;
936 struct Scsi_Host *shost; 1082 struct Scsi_Host *shost;
937 struct lpfc_board_event_header board_event;
938 1083
939 /* If the pci channel is offline, ignore possible errors, 1084 /* If the pci channel is offline, ignore possible errors,
940 * since we cannot communicate with the pci card anyway. */ 1085 * since we cannot communicate with the pci card anyway.
941 if (pci_channel_offline(phba->pcidev)) 1086 */
1087 if (pci_channel_offline(phba->pcidev)) {
1088 spin_lock_irq(&phba->hbalock);
1089 phba->hba_flag &= ~DEFER_ERATT;
1090 spin_unlock_irq(&phba->hbalock);
942 return; 1091 return;
1092 }
1093
943 /* If resets are disabled then leave the HBA alone and return */ 1094 /* If resets are disabled then leave the HBA alone and return */
944 if (!phba->cfg_enable_hba_reset) 1095 if (!phba->cfg_enable_hba_reset)
945 return; 1096 return;
946 1097
947 /* Send an internal error event to mgmt application */ 1098 /* Send an internal error event to mgmt application */
948 board_event.event_type = FC_REG_BOARD_EVENT; 1099 lpfc_board_errevt_to_mgmt(phba);
949 board_event.subcategory = LPFC_EVENT_PORTINTERR;
950 shost = lpfc_shost_from_vport(phba->pport);
951 fc_host_post_vendor_event(shost, fc_get_event_number(),
952 sizeof(board_event),
953 (char *) &board_event,
954 LPFC_NL_VENDOR_ID);
955 1100
956 if (phba->hba_flag & DEFER_ERATT) 1101 if (phba->hba_flag & DEFER_ERATT)
957 lpfc_handle_deferred_eratt(phba); 1102 lpfc_handle_deferred_eratt(phba);
@@ -965,7 +1110,7 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
965 phba->work_status[0], phba->work_status[1]); 1110 phba->work_status[0], phba->work_status[1]);
966 1111
967 spin_lock_irq(&phba->hbalock); 1112 spin_lock_irq(&phba->hbalock);
968 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 1113 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
969 spin_unlock_irq(&phba->hbalock); 1114 spin_unlock_irq(&phba->hbalock);
970 1115
971 /* 1116 /*
@@ -1037,6 +1182,65 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
1037} 1182}
1038 1183
1039/** 1184/**
1185 * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1186 * @phba: pointer to lpfc hba data structure.
1187 *
1188 * This routine is invoked to handle the SLI4 HBA hardware error attention
1189 * conditions.
1190 **/
1191static void
1192lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1193{
1194 struct lpfc_vport *vport = phba->pport;
1195 uint32_t event_data;
1196 struct Scsi_Host *shost;
1197
1198 /* If the pci channel is offline, ignore possible errors, since
1199 * we cannot communicate with the pci card anyway.
1200 */
1201 if (pci_channel_offline(phba->pcidev))
1202 return;
1203 /* If resets are disabled then leave the HBA alone and return */
1204 if (!phba->cfg_enable_hba_reset)
1205 return;
1206
1207 /* Send an internal error event to mgmt application */
1208 lpfc_board_errevt_to_mgmt(phba);
1209
1210 /* For now, the actual action for SLI4 device handling is not
1211 * specified yet, just treated it as adaptor hardware failure
1212 */
1213 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1214 "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1215 phba->work_status[0], phba->work_status[1]);
1216
1217 event_data = FC_REG_DUMP_EVENT;
1218 shost = lpfc_shost_from_vport(vport);
1219 fc_host_post_vendor_event(shost, fc_get_event_number(),
1220 sizeof(event_data), (char *) &event_data,
1221 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1222
1223 lpfc_sli4_offline_eratt(phba);
1224}
1225
1226/**
1227 * lpfc_handle_eratt - Wrapper func for handling hba error attention
1228 * @phba: pointer to lpfc HBA data structure.
1229 *
1230 * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1231 * routine from the API jump table function pointer from the lpfc_hba struct.
1232 *
1233 * Return codes
1234 * 0 - sucess.
1235 * Any other value - error.
1236 **/
1237void
1238lpfc_handle_eratt(struct lpfc_hba *phba)
1239{
1240 (*phba->lpfc_handle_eratt)(phba);
1241}
1242
1243/**
1040 * lpfc_handle_latt - The HBA link event handler 1244 * lpfc_handle_latt - The HBA link event handler
1041 * @phba: pointer to lpfc hba data structure. 1245 * @phba: pointer to lpfc hba data structure.
1042 * 1246 *
@@ -1137,7 +1341,7 @@ lpfc_handle_latt_err_exit:
1137 * 0 - pointer to the VPD passed in is NULL 1341 * 0 - pointer to the VPD passed in is NULL
1138 * 1 - success 1342 * 1 - success
1139 **/ 1343 **/
1140static int 1344int
1141lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) 1345lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1142{ 1346{
1143 uint8_t lenlo, lenhi; 1347 uint8_t lenlo, lenhi;
@@ -1292,6 +1496,7 @@ lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1292 uint16_t dev_id = phba->pcidev->device; 1496 uint16_t dev_id = phba->pcidev->device;
1293 int max_speed; 1497 int max_speed;
1294 int GE = 0; 1498 int GE = 0;
1499 int oneConnect = 0; /* default is not a oneConnect */
1295 struct { 1500 struct {
1296 char * name; 1501 char * name;
1297 int max_speed; 1502 int max_speed;
@@ -1437,6 +1642,14 @@ lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1437 case PCI_DEVICE_ID_PROTEUS_S: 1642 case PCI_DEVICE_ID_PROTEUS_S:
1438 m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"}; 1643 m = (typeof(m)) {"LPemv12002-S", max_speed, "PCIe IOV"};
1439 break; 1644 break;
1645 case PCI_DEVICE_ID_TIGERSHARK:
1646 oneConnect = 1;
1647 m = (typeof(m)) {"OCe10100-F", max_speed, "PCIe"};
1648 break;
1649 case PCI_DEVICE_ID_TIGERSHARK_S:
1650 oneConnect = 1;
1651 m = (typeof(m)) {"OCe10100-F-S", max_speed, "PCIe"};
1652 break;
1440 default: 1653 default:
1441 m = (typeof(m)){ NULL }; 1654 m = (typeof(m)){ NULL };
1442 break; 1655 break;
@@ -1444,13 +1657,24 @@ lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1444 1657
1445 if (mdp && mdp[0] == '\0') 1658 if (mdp && mdp[0] == '\0')
1446 snprintf(mdp, 79,"%s", m.name); 1659 snprintf(mdp, 79,"%s", m.name);
1447 if (descp && descp[0] == '\0') 1660 /* oneConnect hba requires special processing, they are all initiators
1448 snprintf(descp, 255, 1661 * and we put the port number on the end
1449 "Emulex %s %d%s %s %s", 1662 */
1450 m.name, m.max_speed, 1663 if (descp && descp[0] == '\0') {
1451 (GE) ? "GE" : "Gb", 1664 if (oneConnect)
1452 m.bus, 1665 snprintf(descp, 255,
1453 (GE) ? "FCoE Adapter" : "Fibre Channel Adapter"); 1666 "Emulex OneConnect %s, FCoE Initiator, Port %s",
1667 m.name,
1668 phba->Port);
1669 else
1670 snprintf(descp, 255,
1671 "Emulex %s %d%s %s %s",
1672 m.name, m.max_speed,
1673 (GE) ? "GE" : "Gb",
1674 m.bus,
1675 (GE) ? "FCoE Adapter" :
1676 "Fibre Channel Adapter");
1677 }
1454} 1678}
1455 1679
1456/** 1680/**
@@ -1533,7 +1757,8 @@ lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1533 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; 1757 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1534 icmd->ulpLe = 1; 1758 icmd->ulpLe = 1;
1535 1759
1536 if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) { 1760 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
1761 IOCB_ERROR) {
1537 lpfc_mbuf_free(phba, mp1->virt, mp1->phys); 1762 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1538 kfree(mp1); 1763 kfree(mp1);
1539 cnt++; 1764 cnt++;
@@ -1761,7 +1986,6 @@ lpfc_cleanup(struct lpfc_vport *vport)
1761 * Lets wait for this to happen, if needed. 1986 * Lets wait for this to happen, if needed.
1762 */ 1987 */
1763 while (!list_empty(&vport->fc_nodes)) { 1988 while (!list_empty(&vport->fc_nodes)) {
1764
1765 if (i++ > 3000) { 1989 if (i++ > 3000) {
1766 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, 1990 lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
1767 "0233 Nodelist not empty\n"); 1991 "0233 Nodelist not empty\n");
@@ -1782,7 +2006,6 @@ lpfc_cleanup(struct lpfc_vport *vport)
1782 /* Wait for any activity on ndlps to settle */ 2006 /* Wait for any activity on ndlps to settle */
1783 msleep(10); 2007 msleep(10);
1784 } 2008 }
1785 return;
1786} 2009}
1787 2010
1788/** 2011/**
@@ -1803,22 +2026,36 @@ lpfc_stop_vport_timers(struct lpfc_vport *vport)
1803} 2026}
1804 2027
1805/** 2028/**
1806 * lpfc_stop_phba_timers - Stop all the timers associated with an HBA 2029 * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
1807 * @phba: pointer to lpfc hba data structure. 2030 * @phba: pointer to lpfc hba data structure.
1808 * 2031 *
1809 * This routine stops all the timers associated with a HBA. This function is 2032 * This routine stops all the timers associated with a HBA. This function is
1810 * invoked before either putting a HBA offline or unloading the driver. 2033 * invoked before either putting a HBA offline or unloading the driver.
1811 **/ 2034 **/
1812static void 2035void
1813lpfc_stop_phba_timers(struct lpfc_hba *phba) 2036lpfc_stop_hba_timers(struct lpfc_hba *phba)
1814{ 2037{
1815 del_timer_sync(&phba->fcp_poll_timer);
1816 lpfc_stop_vport_timers(phba->pport); 2038 lpfc_stop_vport_timers(phba->pport);
1817 del_timer_sync(&phba->sli.mbox_tmo); 2039 del_timer_sync(&phba->sli.mbox_tmo);
1818 del_timer_sync(&phba->fabric_block_timer); 2040 del_timer_sync(&phba->fabric_block_timer);
1819 phba->hb_outstanding = 0;
1820 del_timer_sync(&phba->hb_tmofunc);
1821 del_timer_sync(&phba->eratt_poll); 2041 del_timer_sync(&phba->eratt_poll);
2042 del_timer_sync(&phba->hb_tmofunc);
2043 phba->hb_outstanding = 0;
2044
2045 switch (phba->pci_dev_grp) {
2046 case LPFC_PCI_DEV_LP:
2047 /* Stop any LightPulse device specific driver timers */
2048 del_timer_sync(&phba->fcp_poll_timer);
2049 break;
2050 case LPFC_PCI_DEV_OC:
2051 /* Stop any OneConnect device sepcific driver timers */
2052 break;
2053 default:
2054 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2055 "0297 Invalid device group (x%x)\n",
2056 phba->pci_dev_grp);
2057 break;
2058 }
1822 return; 2059 return;
1823} 2060}
1824 2061
@@ -1878,14 +2115,21 @@ lpfc_online(struct lpfc_hba *phba)
1878 return 1; 2115 return 1;
1879 } 2116 }
1880 2117
1881 if (lpfc_sli_hba_setup(phba)) { /* Initialize the HBA */ 2118 if (phba->sli_rev == LPFC_SLI_REV4) {
1882 lpfc_unblock_mgmt_io(phba); 2119 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
1883 return 1; 2120 lpfc_unblock_mgmt_io(phba);
2121 return 1;
2122 }
2123 } else {
2124 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2125 lpfc_unblock_mgmt_io(phba);
2126 return 1;
2127 }
1884 } 2128 }
1885 2129
1886 vports = lpfc_create_vport_work_array(phba); 2130 vports = lpfc_create_vport_work_array(phba);
1887 if (vports != NULL) 2131 if (vports != NULL)
1888 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { 2132 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1889 struct Scsi_Host *shost; 2133 struct Scsi_Host *shost;
1890 shost = lpfc_shost_from_vport(vports[i]); 2134 shost = lpfc_shost_from_vport(vports[i]);
1891 spin_lock_irq(shost->host_lock); 2135 spin_lock_irq(shost->host_lock);
@@ -1947,11 +2191,12 @@ lpfc_offline_prep(struct lpfc_hba * phba)
1947 /* Issue an unreg_login to all nodes on all vports */ 2191 /* Issue an unreg_login to all nodes on all vports */
1948 vports = lpfc_create_vport_work_array(phba); 2192 vports = lpfc_create_vport_work_array(phba);
1949 if (vports != NULL) { 2193 if (vports != NULL) {
1950 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { 2194 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1951 struct Scsi_Host *shost; 2195 struct Scsi_Host *shost;
1952 2196
1953 if (vports[i]->load_flag & FC_UNLOADING) 2197 if (vports[i]->load_flag & FC_UNLOADING)
1954 continue; 2198 continue;
2199 vports[i]->vfi_state &= ~LPFC_VFI_REGISTERED;
1955 shost = lpfc_shost_from_vport(vports[i]); 2200 shost = lpfc_shost_from_vport(vports[i]);
1956 list_for_each_entry_safe(ndlp, next_ndlp, 2201 list_for_each_entry_safe(ndlp, next_ndlp,
1957 &vports[i]->fc_nodes, 2202 &vports[i]->fc_nodes,
@@ -1975,7 +2220,7 @@ lpfc_offline_prep(struct lpfc_hba * phba)
1975 } 2220 }
1976 lpfc_destroy_vport_work_array(phba, vports); 2221 lpfc_destroy_vport_work_array(phba, vports);
1977 2222
1978 lpfc_sli_flush_mbox_queue(phba); 2223 lpfc_sli_mbox_sys_shutdown(phba);
1979} 2224}
1980 2225
1981/** 2226/**
@@ -1996,11 +2241,11 @@ lpfc_offline(struct lpfc_hba *phba)
1996 if (phba->pport->fc_flag & FC_OFFLINE_MODE) 2241 if (phba->pport->fc_flag & FC_OFFLINE_MODE)
1997 return; 2242 return;
1998 2243
1999 /* stop all timers associated with this hba */ 2244 /* stop port and all timers associated with this hba */
2000 lpfc_stop_phba_timers(phba); 2245 lpfc_stop_port(phba);
2001 vports = lpfc_create_vport_work_array(phba); 2246 vports = lpfc_create_vport_work_array(phba);
2002 if (vports != NULL) 2247 if (vports != NULL)
2003 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) 2248 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2004 lpfc_stop_vport_timers(vports[i]); 2249 lpfc_stop_vport_timers(vports[i]);
2005 lpfc_destroy_vport_work_array(phba, vports); 2250 lpfc_destroy_vport_work_array(phba, vports);
2006 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 2251 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
@@ -2013,7 +2258,7 @@ lpfc_offline(struct lpfc_hba *phba)
2013 spin_unlock_irq(&phba->hbalock); 2258 spin_unlock_irq(&phba->hbalock);
2014 vports = lpfc_create_vport_work_array(phba); 2259 vports = lpfc_create_vport_work_array(phba);
2015 if (vports != NULL) 2260 if (vports != NULL)
2016 for(i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) { 2261 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2017 shost = lpfc_shost_from_vport(vports[i]); 2262 shost = lpfc_shost_from_vport(vports[i]);
2018 spin_lock_irq(shost->host_lock); 2263 spin_lock_irq(shost->host_lock);
2019 vports[i]->work_port_events = 0; 2264 vports[i]->work_port_events = 0;
@@ -2106,6 +2351,10 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2106 shost->max_lun = vport->cfg_max_luns; 2351 shost->max_lun = vport->cfg_max_luns;
2107 shost->this_id = -1; 2352 shost->this_id = -1;
2108 shost->max_cmd_len = 16; 2353 shost->max_cmd_len = 16;
2354 if (phba->sli_rev == LPFC_SLI_REV4) {
2355 shost->dma_boundary = LPFC_SLI4_MAX_SEGMENT_SIZE;
2356 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2357 }
2109 2358
2110 /* 2359 /*
2111 * Set initial can_queue value since 0 is no longer supported and 2360 * Set initial can_queue value since 0 is no longer supported and
@@ -2123,6 +2372,7 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2123 2372
2124 /* Initialize all internally managed lists. */ 2373 /* Initialize all internally managed lists. */
2125 INIT_LIST_HEAD(&vport->fc_nodes); 2374 INIT_LIST_HEAD(&vport->fc_nodes);
2375 INIT_LIST_HEAD(&vport->rcv_buffer_list);
2126 spin_lock_init(&vport->work_port_lock); 2376 spin_lock_init(&vport->work_port_lock);
2127 2377
2128 init_timer(&vport->fc_disctmo); 2378 init_timer(&vport->fc_disctmo);
@@ -2314,15 +2564,3461 @@ void lpfc_host_attrib_init(struct Scsi_Host *shost)
2314} 2564}
2315 2565
2316/** 2566/**
2317 * lpfc_enable_msix - Enable MSI-X interrupt mode 2567 * lpfc_stop_port_s3 - Stop SLI3 device port
2568 * @phba: pointer to lpfc hba data structure.
2569 *
2570 * This routine is invoked to stop an SLI3 device port, it stops the device
2571 * from generating interrupts and stops the device driver's timers for the
2572 * device.
2573 **/
2574static void
2575lpfc_stop_port_s3(struct lpfc_hba *phba)
2576{
2577 /* Clear all interrupt enable conditions */
2578 writel(0, phba->HCregaddr);
2579 readl(phba->HCregaddr); /* flush */
2580 /* Clear all pending interrupts */
2581 writel(0xffffffff, phba->HAregaddr);
2582 readl(phba->HAregaddr); /* flush */
2583
2584 /* Reset some HBA SLI setup states */
2585 lpfc_stop_hba_timers(phba);
2586 phba->pport->work_port_events = 0;
2587}
2588
2589/**
2590 * lpfc_stop_port_s4 - Stop SLI4 device port
2591 * @phba: pointer to lpfc hba data structure.
2592 *
2593 * This routine is invoked to stop an SLI4 device port, it stops the device
2594 * from generating interrupts and stops the device driver's timers for the
2595 * device.
2596 **/
2597static void
2598lpfc_stop_port_s4(struct lpfc_hba *phba)
2599{
2600 /* Reset some HBA SLI4 setup states */
2601 lpfc_stop_hba_timers(phba);
2602 phba->pport->work_port_events = 0;
2603 phba->sli4_hba.intr_enable = 0;
2604 /* Hard clear it for now, shall have more graceful way to wait later */
2605 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
2606}
2607
2608/**
2609 * lpfc_stop_port - Wrapper function for stopping hba port
2610 * @phba: Pointer to HBA context object.
2611 *
2612 * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2613 * the API jump table function pointer from the lpfc_hba struct.
2614 **/
2615void
2616lpfc_stop_port(struct lpfc_hba *phba)
2617{
2618 phba->lpfc_stop_port(phba);
2619}
2620
2621/**
2622 * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port.
2623 * @phba: pointer to lpfc hba data structure.
2624 *
2625 * This routine is invoked to remove the driver default fcf record from
2626 * the port. This routine currently acts on FCF Index 0.
2627 *
2628 **/
2629void
2630lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba)
2631{
2632 int rc = 0;
2633 LPFC_MBOXQ_t *mboxq;
2634 struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record;
2635 uint32_t mbox_tmo, req_len;
2636 uint32_t shdr_status, shdr_add_status;
2637
2638 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2639 if (!mboxq) {
2640 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2641 "2020 Failed to allocate mbox for ADD_FCF cmd\n");
2642 return;
2643 }
2644
2645 req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) -
2646 sizeof(struct lpfc_sli4_cfg_mhdr);
2647 rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2648 LPFC_MBOX_OPCODE_FCOE_DELETE_FCF,
2649 req_len, LPFC_SLI4_MBX_EMBED);
2650 /*
2651 * In phase 1, there is a single FCF index, 0. In phase2, the driver
2652 * supports multiple FCF indices.
2653 */
2654 del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry;
2655 bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1);
2656 bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record,
2657 phba->fcf.fcf_indx);
2658
2659 if (!phba->sli4_hba.intr_enable)
2660 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2661 else {
2662 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
2663 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
2664 }
2665 /* The IOCTL status is embedded in the mailbox subheader. */
2666 shdr_status = bf_get(lpfc_mbox_hdr_status,
2667 &del_fcf_record->header.cfg_shdr.response);
2668 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2669 &del_fcf_record->header.cfg_shdr.response);
2670 if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2671 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2672 "2516 DEL FCF of default FCF Index failed "
2673 "mbx status x%x, status x%x add_status x%x\n",
2674 rc, shdr_status, shdr_add_status);
2675 }
2676 if (rc != MBX_TIMEOUT)
2677 mempool_free(mboxq, phba->mbox_mem_pool);
2678}
2679
2680/**
2681 * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
2682 * @phba: pointer to lpfc hba data structure.
2683 * @acqe_link: pointer to the async link completion queue entry.
2684 *
2685 * This routine is to parse the SLI4 link-attention link fault code and
2686 * translate it into the base driver's read link attention mailbox command
2687 * status.
2688 *
2689 * Return: Link-attention status in terms of base driver's coding.
2690 **/
2691static uint16_t
2692lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
2693 struct lpfc_acqe_link *acqe_link)
2694{
2695 uint16_t latt_fault;
2696
2697 switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
2698 case LPFC_ASYNC_LINK_FAULT_NONE:
2699 case LPFC_ASYNC_LINK_FAULT_LOCAL:
2700 case LPFC_ASYNC_LINK_FAULT_REMOTE:
2701 latt_fault = 0;
2702 break;
2703 default:
2704 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2705 "0398 Invalid link fault code: x%x\n",
2706 bf_get(lpfc_acqe_link_fault, acqe_link));
2707 latt_fault = MBXERR_ERROR;
2708 break;
2709 }
2710 return latt_fault;
2711}
2712
2713/**
2714 * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
2715 * @phba: pointer to lpfc hba data structure.
2716 * @acqe_link: pointer to the async link completion queue entry.
2717 *
2718 * This routine is to parse the SLI4 link attention type and translate it
2719 * into the base driver's link attention type coding.
2720 *
2721 * Return: Link attention type in terms of base driver's coding.
2722 **/
2723static uint8_t
2724lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
2725 struct lpfc_acqe_link *acqe_link)
2726{
2727 uint8_t att_type;
2728
2729 switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
2730 case LPFC_ASYNC_LINK_STATUS_DOWN:
2731 case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
2732 att_type = AT_LINK_DOWN;
2733 break;
2734 case LPFC_ASYNC_LINK_STATUS_UP:
2735 /* Ignore physical link up events - wait for logical link up */
2736 att_type = AT_RESERVED;
2737 break;
2738 case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
2739 att_type = AT_LINK_UP;
2740 break;
2741 default:
2742 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2743 "0399 Invalid link attention type: x%x\n",
2744 bf_get(lpfc_acqe_link_status, acqe_link));
2745 att_type = AT_RESERVED;
2746 break;
2747 }
2748 return att_type;
2749}
2750
2751/**
2752 * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
2753 * @phba: pointer to lpfc hba data structure.
2754 * @acqe_link: pointer to the async link completion queue entry.
2755 *
2756 * This routine is to parse the SLI4 link-attention link speed and translate
2757 * it into the base driver's link-attention link speed coding.
2758 *
2759 * Return: Link-attention link speed in terms of base driver's coding.
2760 **/
2761static uint8_t
2762lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
2763 struct lpfc_acqe_link *acqe_link)
2764{
2765 uint8_t link_speed;
2766
2767 switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
2768 case LPFC_ASYNC_LINK_SPEED_ZERO:
2769 link_speed = LA_UNKNW_LINK;
2770 break;
2771 case LPFC_ASYNC_LINK_SPEED_10MBPS:
2772 link_speed = LA_UNKNW_LINK;
2773 break;
2774 case LPFC_ASYNC_LINK_SPEED_100MBPS:
2775 link_speed = LA_UNKNW_LINK;
2776 break;
2777 case LPFC_ASYNC_LINK_SPEED_1GBPS:
2778 link_speed = LA_1GHZ_LINK;
2779 break;
2780 case LPFC_ASYNC_LINK_SPEED_10GBPS:
2781 link_speed = LA_10GHZ_LINK;
2782 break;
2783 default:
2784 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2785 "0483 Invalid link-attention link speed: x%x\n",
2786 bf_get(lpfc_acqe_link_speed, acqe_link));
2787 link_speed = LA_UNKNW_LINK;
2788 break;
2789 }
2790 return link_speed;
2791}
2792
2793/**
2794 * lpfc_sli4_async_link_evt - Process the asynchronous link event
2795 * @phba: pointer to lpfc hba data structure.
2796 * @acqe_link: pointer to the async link completion queue entry.
2797 *
2798 * This routine is to handle the SLI4 asynchronous link event.
2799 **/
2800static void
2801lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
2802 struct lpfc_acqe_link *acqe_link)
2803{
2804 struct lpfc_dmabuf *mp;
2805 LPFC_MBOXQ_t *pmb;
2806 MAILBOX_t *mb;
2807 READ_LA_VAR *la;
2808 uint8_t att_type;
2809
2810 att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
2811 if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
2812 return;
2813 pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2814 if (!pmb) {
2815 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2816 "0395 The mboxq allocation failed\n");
2817 return;
2818 }
2819 mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2820 if (!mp) {
2821 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2822 "0396 The lpfc_dmabuf allocation failed\n");
2823 goto out_free_pmb;
2824 }
2825 mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2826 if (!mp->virt) {
2827 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2828 "0397 The mbuf allocation failed\n");
2829 goto out_free_dmabuf;
2830 }
2831
2832 /* Cleanup any outstanding ELS commands */
2833 lpfc_els_flush_all_cmd(phba);
2834
2835 /* Block ELS IOCBs until we have done process link event */
2836 phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2837
2838 /* Update link event statistics */
2839 phba->sli.slistat.link_event++;
2840
2841 /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
2842 lpfc_read_la(phba, pmb, mp);
2843 pmb->vport = phba->pport;
2844
2845 /* Parse and translate status field */
2846 mb = &pmb->u.mb;
2847 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
2848
2849 /* Parse and translate link attention fields */
2850 la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
2851 la->eventTag = acqe_link->event_tag;
2852 la->attType = att_type;
2853 la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);
2854
2855 /* Fake the the following irrelvant fields */
2856 la->topology = TOPOLOGY_PT_PT;
2857 la->granted_AL_PA = 0;
2858 la->il = 0;
2859 la->pb = 0;
2860 la->fa = 0;
2861 la->mm = 0;
2862
2863 /* Keep the link status for extra SLI4 state machine reference */
2864 phba->sli4_hba.link_state.speed =
2865 bf_get(lpfc_acqe_link_speed, acqe_link);
2866 phba->sli4_hba.link_state.duplex =
2867 bf_get(lpfc_acqe_link_duplex, acqe_link);
2868 phba->sli4_hba.link_state.status =
2869 bf_get(lpfc_acqe_link_status, acqe_link);
2870 phba->sli4_hba.link_state.physical =
2871 bf_get(lpfc_acqe_link_physical, acqe_link);
2872 phba->sli4_hba.link_state.fault =
2873 bf_get(lpfc_acqe_link_fault, acqe_link);
2874
2875 /* Invoke the lpfc_handle_latt mailbox command callback function */
2876 lpfc_mbx_cmpl_read_la(phba, pmb);
2877
2878 return;
2879
2880out_free_dmabuf:
2881 kfree(mp);
2882out_free_pmb:
2883 mempool_free(pmb, phba->mbox_mem_pool);
2884}
2885
2886/**
2887 * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
2888 * @phba: pointer to lpfc hba data structure.
2889 * @acqe_link: pointer to the async fcoe completion queue entry.
2890 *
2891 * This routine is to handle the SLI4 asynchronous fcoe event.
2892 **/
2893static void
2894lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
2895 struct lpfc_acqe_fcoe *acqe_fcoe)
2896{
2897 uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
2898 int rc;
2899
2900 switch (event_type) {
2901 case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
2902 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2903 "2546 New FCF found index 0x%x tag 0x%x \n",
2904 acqe_fcoe->fcf_index,
2905 acqe_fcoe->event_tag);
2906 /*
2907 * If the current FCF is in discovered state,
2908 * do nothing.
2909 */
2910 spin_lock_irq(&phba->hbalock);
2911 if (phba->fcf.fcf_flag & FCF_DISCOVERED) {
2912 spin_unlock_irq(&phba->hbalock);
2913 break;
2914 }
2915 spin_unlock_irq(&phba->hbalock);
2916
2917 /* Read the FCF table and re-discover SAN. */
2918 rc = lpfc_sli4_read_fcf_record(phba,
2919 LPFC_FCOE_FCF_GET_FIRST);
2920 if (rc)
2921 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2922 "2547 Read FCF record failed 0x%x\n",
2923 rc);
2924 break;
2925
2926 case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
2927 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2928 "2548 FCF Table full count 0x%x tag 0x%x \n",
2929 bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe),
2930 acqe_fcoe->event_tag);
2931 break;
2932
2933 case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
2934 lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
2935 "2549 FCF disconnected fron network index 0x%x"
2936 " tag 0x%x \n", acqe_fcoe->fcf_index,
2937 acqe_fcoe->event_tag);
2938 /* If the event is not for currently used fcf do nothing */
2939 if (phba->fcf.fcf_indx != acqe_fcoe->fcf_index)
2940 break;
2941 /*
2942 * Currently, driver support only one FCF - so treat this as
2943 * a link down.
2944 */
2945 lpfc_linkdown(phba);
2946 /* Unregister FCF if no devices connected to it */
2947 lpfc_unregister_unused_fcf(phba);
2948 break;
2949
2950 default:
2951 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2952 "0288 Unknown FCoE event type 0x%x event tag "
2953 "0x%x\n", event_type, acqe_fcoe->event_tag);
2954 break;
2955 }
2956}
2957
2958/**
2959 * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
2960 * @phba: pointer to lpfc hba data structure.
2961 * @acqe_link: pointer to the async dcbx completion queue entry.
2962 *
2963 * This routine is to handle the SLI4 asynchronous dcbx event.
2964 **/
2965static void
2966lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
2967 struct lpfc_acqe_dcbx *acqe_dcbx)
2968{
2969 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2970 "0290 The SLI4 DCBX asynchronous event is not "
2971 "handled yet\n");
2972}
2973
2974/**
2975 * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
2976 * @phba: pointer to lpfc hba data structure.
2977 *
2978 * This routine is invoked by the worker thread to process all the pending
2979 * SLI4 asynchronous events.
2980 **/
2981void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
2982{
2983 struct lpfc_cq_event *cq_event;
2984
2985 /* First, declare the async event has been handled */
2986 spin_lock_irq(&phba->hbalock);
2987 phba->hba_flag &= ~ASYNC_EVENT;
2988 spin_unlock_irq(&phba->hbalock);
2989 /* Now, handle all the async events */
2990 while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
2991 /* Get the first event from the head of the event queue */
2992 spin_lock_irq(&phba->hbalock);
2993 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
2994 cq_event, struct lpfc_cq_event, list);
2995 spin_unlock_irq(&phba->hbalock);
2996 /* Process the asynchronous event */
2997 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
2998 case LPFC_TRAILER_CODE_LINK:
2999 lpfc_sli4_async_link_evt(phba,
3000 &cq_event->cqe.acqe_link);
3001 break;
3002 case LPFC_TRAILER_CODE_FCOE:
3003 lpfc_sli4_async_fcoe_evt(phba,
3004 &cq_event->cqe.acqe_fcoe);
3005 break;
3006 case LPFC_TRAILER_CODE_DCBX:
3007 lpfc_sli4_async_dcbx_evt(phba,
3008 &cq_event->cqe.acqe_dcbx);
3009 break;
3010 default:
3011 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3012 "1804 Invalid asynchrous event code: "
3013 "x%x\n", bf_get(lpfc_trailer_code,
3014 &cq_event->cqe.mcqe_cmpl));
3015 break;
3016 }
3017 /* Free the completion event processed to the free pool */
3018 lpfc_sli4_cq_event_release(phba, cq_event);
3019 }
3020}
3021
3022/**
3023 * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3024 * @phba: pointer to lpfc hba data structure.
3025 * @dev_grp: The HBA PCI-Device group number.
3026 *
3027 * This routine is invoked to set up the per HBA PCI-Device group function
3028 * API jump table entries.
3029 *
3030 * Return: 0 if success, otherwise -ENODEV
3031 **/
3032int
3033lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3034{
3035 int rc;
3036
3037 /* Set up lpfc PCI-device group */
3038 phba->pci_dev_grp = dev_grp;
3039
3040 /* The LPFC_PCI_DEV_OC uses SLI4 */
3041 if (dev_grp == LPFC_PCI_DEV_OC)
3042 phba->sli_rev = LPFC_SLI_REV4;
3043
3044 /* Set up device INIT API function jump table */
3045 rc = lpfc_init_api_table_setup(phba, dev_grp);
3046 if (rc)
3047 return -ENODEV;
3048 /* Set up SCSI API function jump table */
3049 rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3050 if (rc)
3051 return -ENODEV;
3052 /* Set up SLI API function jump table */
3053 rc = lpfc_sli_api_table_setup(phba, dev_grp);
3054 if (rc)
3055 return -ENODEV;
3056 /* Set up MBOX API function jump table */
3057 rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3058 if (rc)
3059 return -ENODEV;
3060
3061 return 0;
3062}
3063
3064/**
3065 * lpfc_log_intr_mode - Log the active interrupt mode
3066 * @phba: pointer to lpfc hba data structure.
3067 * @intr_mode: active interrupt mode adopted.
3068 *
3069 * This routine it invoked to log the currently used active interrupt mode
3070 * to the device.
3071 **/
3072static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3073{
3074 switch (intr_mode) {
3075 case 0:
3076 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3077 "0470 Enable INTx interrupt mode.\n");
3078 break;
3079 case 1:
3080 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3081 "0481 Enabled MSI interrupt mode.\n");
3082 break;
3083 case 2:
3084 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3085 "0480 Enabled MSI-X interrupt mode.\n");
3086 break;
3087 default:
3088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3089 "0482 Illegal interrupt mode.\n");
3090 break;
3091 }
3092 return;
3093}
3094
3095/**
3096 * lpfc_enable_pci_dev - Enable a generic PCI device.
3097 * @phba: pointer to lpfc hba data structure.
3098 *
3099 * This routine is invoked to enable the PCI device that is common to all
3100 * PCI devices.
3101 *
3102 * Return codes
3103 * 0 - sucessful
3104 * other values - error
3105 **/
3106static int
3107lpfc_enable_pci_dev(struct lpfc_hba *phba)
3108{
3109 struct pci_dev *pdev;
3110 int bars;
3111
3112 /* Obtain PCI device reference */
3113 if (!phba->pcidev)
3114 goto out_error;
3115 else
3116 pdev = phba->pcidev;
3117 /* Select PCI BARs */
3118 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3119 /* Enable PCI device */
3120 if (pci_enable_device_mem(pdev))
3121 goto out_error;
3122 /* Request PCI resource for the device */
3123 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3124 goto out_disable_device;
3125 /* Set up device as PCI master and save state for EEH */
3126 pci_set_master(pdev);
3127 pci_try_set_mwi(pdev);
3128 pci_save_state(pdev);
3129
3130 return 0;
3131
3132out_disable_device:
3133 pci_disable_device(pdev);
3134out_error:
3135 return -ENODEV;
3136}
3137
3138/**
3139 * lpfc_disable_pci_dev - Disable a generic PCI device.
3140 * @phba: pointer to lpfc hba data structure.
3141 *
3142 * This routine is invoked to disable the PCI device that is common to all
3143 * PCI devices.
3144 **/
3145static void
3146lpfc_disable_pci_dev(struct lpfc_hba *phba)
3147{
3148 struct pci_dev *pdev;
3149 int bars;
3150
3151 /* Obtain PCI device reference */
3152 if (!phba->pcidev)
3153 return;
3154 else
3155 pdev = phba->pcidev;
3156 /* Select PCI BARs */
3157 bars = pci_select_bars(pdev, IORESOURCE_MEM);
3158 /* Release PCI resource and disable PCI device */
3159 pci_release_selected_regions(pdev, bars);
3160 pci_disable_device(pdev);
3161 /* Null out PCI private reference to driver */
3162 pci_set_drvdata(pdev, NULL);
3163
3164 return;
3165}
3166
3167/**
3168 * lpfc_reset_hba - Reset a hba
3169 * @phba: pointer to lpfc hba data structure.
3170 *
3171 * This routine is invoked to reset a hba device. It brings the HBA
3172 * offline, performs a board restart, and then brings the board back
3173 * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3174 * on outstanding mailbox commands.
3175 **/
3176void
3177lpfc_reset_hba(struct lpfc_hba *phba)
3178{
3179 /* If resets are disabled then set error state and return. */
3180 if (!phba->cfg_enable_hba_reset) {
3181 phba->link_state = LPFC_HBA_ERROR;
3182 return;
3183 }
3184 lpfc_offline_prep(phba);
3185 lpfc_offline(phba);
3186 lpfc_sli_brdrestart(phba);
3187 lpfc_online(phba);
3188 lpfc_unblock_mgmt_io(phba);
3189}
3190
3191/**
3192 * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3193 * @phba: pointer to lpfc hba data structure.
3194 *
3195 * This routine is invoked to set up the driver internal resources specific to
3196 * support the SLI-3 HBA device it attached to.
3197 *
3198 * Return codes
3199 * 0 - sucessful
3200 * other values - error
3201 **/
3202static int
3203lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
3204{
3205 struct lpfc_sli *psli;
3206
3207 /*
3208 * Initialize timers used by driver
3209 */
3210
3211 /* Heartbeat timer */
3212 init_timer(&phba->hb_tmofunc);
3213 phba->hb_tmofunc.function = lpfc_hb_timeout;
3214 phba->hb_tmofunc.data = (unsigned long)phba;
3215
3216 psli = &phba->sli;
3217 /* MBOX heartbeat timer */
3218 init_timer(&psli->mbox_tmo);
3219 psli->mbox_tmo.function = lpfc_mbox_timeout;
3220 psli->mbox_tmo.data = (unsigned long) phba;
3221 /* FCP polling mode timer */
3222 init_timer(&phba->fcp_poll_timer);
3223 phba->fcp_poll_timer.function = lpfc_poll_timeout;
3224 phba->fcp_poll_timer.data = (unsigned long) phba;
3225 /* Fabric block timer */
3226 init_timer(&phba->fabric_block_timer);
3227 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3228 phba->fabric_block_timer.data = (unsigned long) phba;
3229 /* EA polling mode timer */
3230 init_timer(&phba->eratt_poll);
3231 phba->eratt_poll.function = lpfc_poll_eratt;
3232 phba->eratt_poll.data = (unsigned long) phba;
3233
3234 /* Host attention work mask setup */
3235 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
3236 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
3237
3238 /* Get all the module params for configuring this host */
3239 lpfc_get_cfgparam(phba);
3240 /*
3241 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3242 * used to create the sg_dma_buf_pool must be dynamically calculated.
3243 * 2 segments are added since the IOCB needs a command and response bde.
3244 */
3245 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
3246 sizeof(struct fcp_rsp) +
3247 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
3248
3249 if (phba->cfg_enable_bg) {
3250 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
3251 phba->cfg_sg_dma_buf_size +=
3252 phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
3253 }
3254
3255 /* Also reinitialize the host templates with new values. */
3256 lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3257 lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3258
3259 phba->max_vpi = LPFC_MAX_VPI;
3260 /* This will be set to correct value after config_port mbox */
3261 phba->max_vports = 0;
3262
3263 /*
3264 * Initialize the SLI Layer to run with lpfc HBAs.
3265 */
3266 lpfc_sli_setup(phba);
3267 lpfc_sli_queue_setup(phba);
3268
3269 /* Allocate device driver memory */
3270 if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
3271 return -ENOMEM;
3272
3273 return 0;
3274}
3275
3276/**
3277 * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3278 * @phba: pointer to lpfc hba data structure.
3279 *
3280 * This routine is invoked to unset the driver internal resources set up
3281 * specific for supporting the SLI-3 HBA device it attached to.
3282 **/
3283static void
3284lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
3285{
3286 /* Free device driver memory allocated */
3287 lpfc_mem_free_all(phba);
3288
3289 return;
3290}
3291
3292/**
3293 * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3294 * @phba: pointer to lpfc hba data structure.
3295 *
3296 * This routine is invoked to set up the driver internal resources specific to
3297 * support the SLI-4 HBA device it attached to.
3298 *
3299 * Return codes
3300 * 0 - sucessful
3301 * other values - error
3302 **/
3303static int
3304lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3305{
3306 struct lpfc_sli *psli;
3307 int rc;
3308 int i, hbq_count;
3309
3310 /* Before proceed, wait for POST done and device ready */
3311 rc = lpfc_sli4_post_status_check(phba);
3312 if (rc)
3313 return -ENODEV;
3314
3315 /*
3316 * Initialize timers used by driver
3317 */
3318
3319 /* Heartbeat timer */
3320 init_timer(&phba->hb_tmofunc);
3321 phba->hb_tmofunc.function = lpfc_hb_timeout;
3322 phba->hb_tmofunc.data = (unsigned long)phba;
3323
3324 psli = &phba->sli;
3325 /* MBOX heartbeat timer */
3326 init_timer(&psli->mbox_tmo);
3327 psli->mbox_tmo.function = lpfc_mbox_timeout;
3328 psli->mbox_tmo.data = (unsigned long) phba;
3329 /* Fabric block timer */
3330 init_timer(&phba->fabric_block_timer);
3331 phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3332 phba->fabric_block_timer.data = (unsigned long) phba;
3333 /* EA polling mode timer */
3334 init_timer(&phba->eratt_poll);
3335 phba->eratt_poll.function = lpfc_poll_eratt;
3336 phba->eratt_poll.data = (unsigned long) phba;
3337 /*
3338 * We need to do a READ_CONFIG mailbox command here before
3339 * calling lpfc_get_cfgparam. For VFs this will report the
3340 * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3341 * All of the resources allocated
3342 * for this Port are tied to these values.
3343 */
3344 /* Get all the module params for configuring this host */
3345 lpfc_get_cfgparam(phba);
3346 phba->max_vpi = LPFC_MAX_VPI;
3347 /* This will be set to correct value after the read_config mbox */
3348 phba->max_vports = 0;
3349
3350 /* Program the default value of vlan_id and fc_map */
3351 phba->valid_vlan = 0;
3352 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
3353 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
3354 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3355
3356 /*
3357 * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3358 * used to create the sg_dma_buf_pool must be dynamically calculated.
3359 * 2 segments are added since the IOCB needs a command and response bde.
3360 * To insure that the scsi sgl does not cross a 4k page boundary only
3361 * sgl sizes of 1k, 2k, 4k, and 8k are supported.
3362 * Table of sgl sizes and seg_cnt:
3363 * sgl size, sg_seg_cnt total seg
3364 * 1k 50 52
3365 * 2k 114 116
3366 * 4k 242 244
3367 * 8k 498 500
3368 * cmd(32) + rsp(160) + (52 * sizeof(sli4_sge)) = 1024
3369 * cmd(32) + rsp(160) + (116 * sizeof(sli4_sge)) = 2048
3370 * cmd(32) + rsp(160) + (244 * sizeof(sli4_sge)) = 4096
3371 * cmd(32) + rsp(160) + (500 * sizeof(sli4_sge)) = 8192
3372 */
3373 if (phba->cfg_sg_seg_cnt <= LPFC_DEFAULT_SG_SEG_CNT)
3374 phba->cfg_sg_seg_cnt = 50;
3375 else if (phba->cfg_sg_seg_cnt <= 114)
3376 phba->cfg_sg_seg_cnt = 114;
3377 else if (phba->cfg_sg_seg_cnt <= 242)
3378 phba->cfg_sg_seg_cnt = 242;
3379 else
3380 phba->cfg_sg_seg_cnt = 498;
3381
3382 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd)
3383 + sizeof(struct fcp_rsp);
3384 phba->cfg_sg_dma_buf_size +=
3385 ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
3386
3387 /* Initialize buffer queue management fields */
3388 hbq_count = lpfc_sli_hbq_count();
3389 for (i = 0; i < hbq_count; ++i)
3390 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
3391 INIT_LIST_HEAD(&phba->rb_pend_list);
3392 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
3393 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3394
3395 /*
3396 * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
3397 */
3398 /* Initialize the Abort scsi buffer list used by driver */
3399 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
3400 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
3401 /* This abort list used by worker thread */
3402 spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3403
3404 /*
3405 * Initialize dirver internal slow-path work queues
3406 */
3407
3408 /* Driver internel slow-path CQ Event pool */
3409 INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
3410 /* Response IOCB work queue list */
3411 INIT_LIST_HEAD(&phba->sli4_hba.sp_rspiocb_work_queue);
3412 /* Asynchronous event CQ Event work queue list */
3413 INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
3414 /* Fast-path XRI aborted CQ Event work queue list */
3415 INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
3416 /* Slow-path XRI aborted CQ Event work queue list */
3417 INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
3418 /* Receive queue CQ Event work queue list */
3419 INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
3420
3421 /* Initialize the driver internal SLI layer lists. */
3422 lpfc_sli_setup(phba);
3423 lpfc_sli_queue_setup(phba);
3424
3425 /* Allocate device driver memory */
3426 rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
3427 if (rc)
3428 return -ENOMEM;
3429
3430 /* Create the bootstrap mailbox command */
3431 rc = lpfc_create_bootstrap_mbox(phba);
3432 if (unlikely(rc))
3433 goto out_free_mem;
3434
3435 /* Set up the host's endian order with the device. */
3436 rc = lpfc_setup_endian_order(phba);
3437 if (unlikely(rc))
3438 goto out_free_bsmbx;
3439
3440 /* Set up the hba's configuration parameters. */
3441 rc = lpfc_sli4_read_config(phba);
3442 if (unlikely(rc))
3443 goto out_free_bsmbx;
3444
3445 /* Perform a function reset */
3446 rc = lpfc_pci_function_reset(phba);
3447 if (unlikely(rc))
3448 goto out_free_bsmbx;
3449
3450 /* Create all the SLI4 queues */
3451 rc = lpfc_sli4_queue_create(phba);
3452 if (rc)
3453 goto out_free_bsmbx;
3454
3455 /* Create driver internal CQE event pool */
3456 rc = lpfc_sli4_cq_event_pool_create(phba);
3457 if (rc)
3458 goto out_destroy_queue;
3459
3460 /* Initialize and populate the iocb list per host */
3461 rc = lpfc_init_sgl_list(phba);
3462 if (rc) {
3463 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3464 "1400 Failed to initialize sgl list.\n");
3465 goto out_destroy_cq_event_pool;
3466 }
3467 rc = lpfc_init_active_sgl_array(phba);
3468 if (rc) {
3469 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3470 "1430 Failed to initialize sgl list.\n");
3471 goto out_free_sgl_list;
3472 }
3473
3474 rc = lpfc_sli4_init_rpi_hdrs(phba);
3475 if (rc) {
3476 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3477 "1432 Failed to initialize rpi headers.\n");
3478 goto out_free_active_sgl;
3479 }
3480
3481 phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
3482 phba->cfg_fcp_eq_count), GFP_KERNEL);
3483 if (!phba->sli4_hba.fcp_eq_hdl) {
3484 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3485 "2572 Failed allocate memory for fast-path "
3486 "per-EQ handle array\n");
3487 goto out_remove_rpi_hdrs;
3488 }
3489
3490 phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
3491 phba->sli4_hba.cfg_eqn), GFP_KERNEL);
3492 if (!phba->sli4_hba.msix_entries) {
3493 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3494 "2573 Failed allocate memory for msi-x "
3495 "interrupt vector entries\n");
3496 goto out_free_fcp_eq_hdl;
3497 }
3498
3499 return rc;
3500
3501out_free_fcp_eq_hdl:
3502 kfree(phba->sli4_hba.fcp_eq_hdl);
3503out_remove_rpi_hdrs:
3504 lpfc_sli4_remove_rpi_hdrs(phba);
3505out_free_active_sgl:
3506 lpfc_free_active_sgl(phba);
3507out_free_sgl_list:
3508 lpfc_free_sgl_list(phba);
3509out_destroy_cq_event_pool:
3510 lpfc_sli4_cq_event_pool_destroy(phba);
3511out_destroy_queue:
3512 lpfc_sli4_queue_destroy(phba);
3513out_free_bsmbx:
3514 lpfc_destroy_bootstrap_mbox(phba);
3515out_free_mem:
3516 lpfc_mem_free(phba);
3517 return rc;
3518}
3519
3520/**
3521 * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
3522 * @phba: pointer to lpfc hba data structure.
3523 *
3524 * This routine is invoked to unset the driver internal resources set up
3525 * specific for supporting the SLI-4 HBA device it attached to.
3526 **/
3527static void
3528lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
3529{
3530 struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
3531
3532 /* unregister default FCFI from the HBA */
3533 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
3534
3535 /* Free the default FCR table */
3536 lpfc_sli_remove_dflt_fcf(phba);
3537
3538 /* Free memory allocated for msi-x interrupt vector entries */
3539 kfree(phba->sli4_hba.msix_entries);
3540
3541 /* Free memory allocated for fast-path work queue handles */
3542 kfree(phba->sli4_hba.fcp_eq_hdl);
3543
3544 /* Free the allocated rpi headers. */
3545 lpfc_sli4_remove_rpi_hdrs(phba);
3546
3547 /* Free the ELS sgl list */
3548 lpfc_free_active_sgl(phba);
3549 lpfc_free_sgl_list(phba);
3550
3551 /* Free the SCSI sgl management array */
3552 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
3553
3554 /* Free the SLI4 queues */
3555 lpfc_sli4_queue_destroy(phba);
3556
3557 /* Free the completion queue EQ event pool */
3558 lpfc_sli4_cq_event_release_all(phba);
3559 lpfc_sli4_cq_event_pool_destroy(phba);
3560
3561 /* Reset SLI4 HBA FCoE function */
3562 lpfc_pci_function_reset(phba);
3563
3564 /* Free the bsmbx region. */
3565 lpfc_destroy_bootstrap_mbox(phba);
3566
3567 /* Free the SLI Layer memory with SLI4 HBAs */
3568 lpfc_mem_free_all(phba);
3569
3570 /* Free the current connect table */
3571 list_for_each_entry_safe(conn_entry, next_conn_entry,
3572 &phba->fcf_conn_rec_list, list)
3573 kfree(conn_entry);
3574
3575 return;
3576}
3577
3578/**
3579 * lpfc_init_api_table_setup - Set up init api fucntion jump table
3580 * @phba: The hba struct for which this call is being executed.
3581 * @dev_grp: The HBA PCI-Device group number.
3582 *
3583 * This routine sets up the device INIT interface API function jump table
3584 * in @phba struct.
3585 *
3586 * Returns: 0 - success, -ENODEV - failure.
3587 **/
3588int
3589lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3590{
3591 switch (dev_grp) {
3592 case LPFC_PCI_DEV_LP:
3593 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
3594 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
3595 phba->lpfc_stop_port = lpfc_stop_port_s3;
3596 break;
3597 case LPFC_PCI_DEV_OC:
3598 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
3599 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
3600 phba->lpfc_stop_port = lpfc_stop_port_s4;
3601 break;
3602 default:
3603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3604 "1431 Invalid HBA PCI-device group: 0x%x\n",
3605 dev_grp);
3606 return -ENODEV;
3607 break;
3608 }
3609 return 0;
3610}
3611
3612/**
3613 * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
3614 * @phba: pointer to lpfc hba data structure.
3615 *
3616 * This routine is invoked to set up the driver internal resources before the
3617 * device specific resource setup to support the HBA device it attached to.
3618 *
3619 * Return codes
3620 * 0 - sucessful
3621 * other values - error
3622 **/
3623static int
3624lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
3625{
3626 /*
3627 * Driver resources common to all SLI revisions
3628 */
3629 atomic_set(&phba->fast_event_count, 0);
3630 spin_lock_init(&phba->hbalock);
3631
3632 /* Initialize ndlp management spinlock */
3633 spin_lock_init(&phba->ndlp_lock);
3634
3635 INIT_LIST_HEAD(&phba->port_list);
3636 INIT_LIST_HEAD(&phba->work_list);
3637 init_waitqueue_head(&phba->wait_4_mlo_m_q);
3638
3639 /* Initialize the wait queue head for the kernel thread */
3640 init_waitqueue_head(&phba->work_waitq);
3641
3642 /* Initialize the scsi buffer list used by driver for scsi IO */
3643 spin_lock_init(&phba->scsi_buf_list_lock);
3644 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
3645
3646 /* Initialize the fabric iocb list */
3647 INIT_LIST_HEAD(&phba->fabric_iocb_list);
3648
3649 /* Initialize list to save ELS buffers */
3650 INIT_LIST_HEAD(&phba->elsbuf);
3651
3652 /* Initialize FCF connection rec list */
3653 INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
3654
3655 return 0;
3656}
3657
3658/**
3659 * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
3660 * @phba: pointer to lpfc hba data structure.
3661 *
3662 * This routine is invoked to set up the driver internal resources after the
3663 * device specific resource setup to support the HBA device it attached to.
3664 *
3665 * Return codes
3666 * 0 - sucessful
3667 * other values - error
3668 **/
3669static int
3670lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
3671{
3672 int error;
3673
3674 /* Startup the kernel thread for this host adapter. */
3675 phba->worker_thread = kthread_run(lpfc_do_work, phba,
3676 "lpfc_worker_%d", phba->brd_no);
3677 if (IS_ERR(phba->worker_thread)) {
3678 error = PTR_ERR(phba->worker_thread);
3679 return error;
3680 }
3681
3682 return 0;
3683}
3684
3685/**
3686 * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
3687 * @phba: pointer to lpfc hba data structure.
3688 *
3689 * This routine is invoked to unset the driver internal resources set up after
3690 * the device specific resource setup for supporting the HBA device it
3691 * attached to.
3692 **/
3693static void
3694lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
3695{
3696 /* Stop kernel worker thread */
3697 kthread_stop(phba->worker_thread);
3698}
3699
3700/**
3701 * lpfc_free_iocb_list - Free iocb list.
3702 * @phba: pointer to lpfc hba data structure.
3703 *
3704 * This routine is invoked to free the driver's IOCB list and memory.
3705 **/
3706static void
3707lpfc_free_iocb_list(struct lpfc_hba *phba)
3708{
3709 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
3710
3711 spin_lock_irq(&phba->hbalock);
3712 list_for_each_entry_safe(iocbq_entry, iocbq_next,
3713 &phba->lpfc_iocb_list, list) {
3714 list_del(&iocbq_entry->list);
3715 kfree(iocbq_entry);
3716 phba->total_iocbq_bufs--;
3717 }
3718 spin_unlock_irq(&phba->hbalock);
3719
3720 return;
3721}
3722
3723/**
3724 * lpfc_init_iocb_list - Allocate and initialize iocb list.
3725 * @phba: pointer to lpfc hba data structure.
3726 *
3727 * This routine is invoked to allocate and initizlize the driver's IOCB
3728 * list and set up the IOCB tag array accordingly.
3729 *
3730 * Return codes
3731 * 0 - sucessful
3732 * other values - error
3733 **/
3734static int
3735lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
3736{
3737 struct lpfc_iocbq *iocbq_entry = NULL;
3738 uint16_t iotag;
3739 int i;
3740
3741 /* Initialize and populate the iocb list per host. */
3742 INIT_LIST_HEAD(&phba->lpfc_iocb_list);
3743 for (i = 0; i < iocb_count; i++) {
3744 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
3745 if (iocbq_entry == NULL) {
3746 printk(KERN_ERR "%s: only allocated %d iocbs of "
3747 "expected %d count. Unloading driver.\n",
3748 __func__, i, LPFC_IOCB_LIST_CNT);
3749 goto out_free_iocbq;
3750 }
3751
3752 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
3753 if (iotag == 0) {
3754 kfree(iocbq_entry);
3755 printk(KERN_ERR "%s: failed to allocate IOTAG. "
3756 "Unloading driver.\n", __func__);
3757 goto out_free_iocbq;
3758 }
3759 iocbq_entry->sli4_xritag = NO_XRI;
3760
3761 spin_lock_irq(&phba->hbalock);
3762 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
3763 phba->total_iocbq_bufs++;
3764 spin_unlock_irq(&phba->hbalock);
3765 }
3766
3767 return 0;
3768
3769out_free_iocbq:
3770 lpfc_free_iocb_list(phba);
3771
3772 return -ENOMEM;
3773}
3774
3775/**
3776 * lpfc_free_sgl_list - Free sgl list.
3777 * @phba: pointer to lpfc hba data structure.
3778 *
3779 * This routine is invoked to free the driver's sgl list and memory.
3780 **/
3781static void
3782lpfc_free_sgl_list(struct lpfc_hba *phba)
3783{
3784 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
3785 LIST_HEAD(sglq_list);
3786 int rc = 0;
3787
3788 spin_lock_irq(&phba->hbalock);
3789 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
3790 spin_unlock_irq(&phba->hbalock);
3791
3792 list_for_each_entry_safe(sglq_entry, sglq_next,
3793 &sglq_list, list) {
3794 list_del(&sglq_entry->list);
3795 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
3796 kfree(sglq_entry);
3797 phba->sli4_hba.total_sglq_bufs--;
3798 }
3799 rc = lpfc_sli4_remove_all_sgl_pages(phba);
3800 if (rc) {
3801 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3802 "2005 Unable to deregister pages from HBA: %x", rc);
3803 }
3804 kfree(phba->sli4_hba.lpfc_els_sgl_array);
3805}
3806
3807/**
3808 * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
3809 * @phba: pointer to lpfc hba data structure.
3810 *
3811 * This routine is invoked to allocate the driver's active sgl memory.
3812 * This array will hold the sglq_entry's for active IOs.
3813 **/
3814static int
3815lpfc_init_active_sgl_array(struct lpfc_hba *phba)
3816{
3817 int size;
3818 size = sizeof(struct lpfc_sglq *);
3819 size *= phba->sli4_hba.max_cfg_param.max_xri;
3820
3821 phba->sli4_hba.lpfc_sglq_active_list =
3822 kzalloc(size, GFP_KERNEL);
3823 if (!phba->sli4_hba.lpfc_sglq_active_list)
3824 return -ENOMEM;
3825 return 0;
3826}
3827
3828/**
3829 * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
3830 * @phba: pointer to lpfc hba data structure.
3831 *
3832 * This routine is invoked to walk through the array of active sglq entries
3833 * and free all of the resources.
3834 * This is just a place holder for now.
3835 **/
3836static void
3837lpfc_free_active_sgl(struct lpfc_hba *phba)
3838{
3839 kfree(phba->sli4_hba.lpfc_sglq_active_list);
3840}
3841
3842/**
3843 * lpfc_init_sgl_list - Allocate and initialize sgl list.
3844 * @phba: pointer to lpfc hba data structure.
3845 *
3846 * This routine is invoked to allocate and initizlize the driver's sgl
3847 * list and set up the sgl xritag tag array accordingly.
3848 *
3849 * Return codes
3850 * 0 - sucessful
3851 * other values - error
3852 **/
3853static int
3854lpfc_init_sgl_list(struct lpfc_hba *phba)
3855{
3856 struct lpfc_sglq *sglq_entry = NULL;
3857 int i;
3858 int els_xri_cnt;
3859
3860 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3861 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3862 "2400 lpfc_init_sgl_list els %d.\n",
3863 els_xri_cnt);
3864 /* Initialize and populate the sglq list per host/VF. */
3865 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
3866 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
3867
3868 /* Sanity check on XRI management */
3869 if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
3870 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3871 "2562 No room left for SCSI XRI allocation: "
3872 "max_xri=%d, els_xri=%d\n",
3873 phba->sli4_hba.max_cfg_param.max_xri,
3874 els_xri_cnt);
3875 return -ENOMEM;
3876 }
3877
3878 /* Allocate memory for the ELS XRI management array */
3879 phba->sli4_hba.lpfc_els_sgl_array =
3880 kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
3881 GFP_KERNEL);
3882
3883 if (!phba->sli4_hba.lpfc_els_sgl_array) {
3884 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3885 "2401 Failed to allocate memory for ELS "
3886 "XRI management array of size %d.\n",
3887 els_xri_cnt);
3888 return -ENOMEM;
3889 }
3890
3891 /* Keep the SCSI XRI into the XRI management array */
3892 phba->sli4_hba.scsi_xri_max =
3893 phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3894 phba->sli4_hba.scsi_xri_cnt = 0;
3895
3896 phba->sli4_hba.lpfc_scsi_psb_array =
3897 kzalloc((sizeof(struct lpfc_scsi_buf *) *
3898 phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
3899
3900 if (!phba->sli4_hba.lpfc_scsi_psb_array) {
3901 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3902 "2563 Failed to allocate memory for SCSI "
3903 "XRI management array of size %d.\n",
3904 phba->sli4_hba.scsi_xri_max);
3905 kfree(phba->sli4_hba.lpfc_els_sgl_array);
3906 return -ENOMEM;
3907 }
3908
3909 for (i = 0; i < els_xri_cnt; i++) {
3910 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
3911 if (sglq_entry == NULL) {
3912 printk(KERN_ERR "%s: only allocated %d sgls of "
3913 "expected %d count. Unloading driver.\n",
3914 __func__, i, els_xri_cnt);
3915 goto out_free_mem;
3916 }
3917
3918 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
3919 if (sglq_entry->sli4_xritag == NO_XRI) {
3920 kfree(sglq_entry);
3921 printk(KERN_ERR "%s: failed to allocate XRI.\n"
3922 "Unloading driver.\n", __func__);
3923 goto out_free_mem;
3924 }
3925 sglq_entry->buff_type = GEN_BUFF_TYPE;
3926 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
3927 if (sglq_entry->virt == NULL) {
3928 kfree(sglq_entry);
3929 printk(KERN_ERR "%s: failed to allocate mbuf.\n"
3930 "Unloading driver.\n", __func__);
3931 goto out_free_mem;
3932 }
3933 sglq_entry->sgl = sglq_entry->virt;
3934 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3935
3936 /* The list order is used by later block SGL registraton */
3937 spin_lock_irq(&phba->hbalock);
3938 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
3939 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
3940 phba->sli4_hba.total_sglq_bufs++;
3941 spin_unlock_irq(&phba->hbalock);
3942 }
3943 return 0;
3944
3945out_free_mem:
3946 kfree(phba->sli4_hba.lpfc_scsi_psb_array);
3947 lpfc_free_sgl_list(phba);
3948 return -ENOMEM;
3949}
3950
3951/**
3952 * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
3953 * @phba: pointer to lpfc hba data structure.
3954 *
3955 * This routine is invoked to post rpi header templates to the
3956 * HBA consistent with the SLI-4 interface spec. This routine
3957 * posts a PAGE_SIZE memory region to the port to hold up to
3958 * PAGE_SIZE modulo 64 rpi context headers.
3959 * No locks are held here because this is an initialization routine
3960 * called only from probe or lpfc_online when interrupts are not
3961 * enabled and the driver is reinitializing the device.
3962 *
3963 * Return codes
3964 * 0 - sucessful
3965 * ENOMEM - No availble memory
3966 * EIO - The mailbox failed to complete successfully.
3967 **/
3968int
3969lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
3970{
3971 int rc = 0;
3972 int longs;
3973 uint16_t rpi_count;
3974 struct lpfc_rpi_hdr *rpi_hdr;
3975
3976 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
3977
3978 /*
3979 * Provision an rpi bitmask range for discovery. The total count
3980 * is the difference between max and base + 1.
3981 */
3982 rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
3983 phba->sli4_hba.max_cfg_param.max_rpi - 1;
3984
3985 longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
3986 phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
3987 GFP_KERNEL);
3988 if (!phba->sli4_hba.rpi_bmask)
3989 return -ENOMEM;
3990
3991 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
3992 if (!rpi_hdr) {
3993 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
3994 "0391 Error during rpi post operation\n");
3995 lpfc_sli4_remove_rpis(phba);
3996 rc = -ENODEV;
3997 }
3998
3999 return rc;
4000}
4001
4002/**
4003 * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4004 * @phba: pointer to lpfc hba data structure.
4005 *
4006 * This routine is invoked to allocate a single 4KB memory region to
4007 * support rpis and stores them in the phba. This single region
4008 * provides support for up to 64 rpis. The region is used globally
4009 * by the device.
4010 *
4011 * Returns:
4012 * A valid rpi hdr on success.
4013 * A NULL pointer on any failure.
4014 **/
4015struct lpfc_rpi_hdr *
4016lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4017{
4018 uint16_t rpi_limit, curr_rpi_range;
4019 struct lpfc_dmabuf *dmabuf;
4020 struct lpfc_rpi_hdr *rpi_hdr;
4021
4022 rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4023 phba->sli4_hba.max_cfg_param.max_rpi - 1;
4024
4025 spin_lock_irq(&phba->hbalock);
4026 curr_rpi_range = phba->sli4_hba.next_rpi;
4027 spin_unlock_irq(&phba->hbalock);
4028
4029 /*
4030 * The port has a limited number of rpis. The increment here
4031 * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4032 * and to allow the full max_rpi range per port.
4033 */
4034 if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4035 return NULL;
4036
4037 /*
4038 * First allocate the protocol header region for the port. The
4039 * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4040 */
4041 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4042 if (!dmabuf)
4043 return NULL;
4044
4045 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4046 LPFC_HDR_TEMPLATE_SIZE,
4047 &dmabuf->phys,
4048 GFP_KERNEL);
4049 if (!dmabuf->virt) {
4050 rpi_hdr = NULL;
4051 goto err_free_dmabuf;
4052 }
4053
4054 memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4055 if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4056 rpi_hdr = NULL;
4057 goto err_free_coherent;
4058 }
4059
4060 /* Save the rpi header data for cleanup later. */
4061 rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4062 if (!rpi_hdr)
4063 goto err_free_coherent;
4064
4065 rpi_hdr->dmabuf = dmabuf;
4066 rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4067 rpi_hdr->page_count = 1;
4068 spin_lock_irq(&phba->hbalock);
4069 rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4070 list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4071
4072 /*
4073 * The next_rpi stores the next module-64 rpi value to post
4074 * in any subsequent rpi memory region postings.
4075 */
4076 phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4077 spin_unlock_irq(&phba->hbalock);
4078 return rpi_hdr;
4079
4080 err_free_coherent:
4081 dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4082 dmabuf->virt, dmabuf->phys);
4083 err_free_dmabuf:
4084 kfree(dmabuf);
4085 return NULL;
4086}
4087
4088/**
4089 * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
2318 * @phba: pointer to lpfc hba data structure. 4090 * @phba: pointer to lpfc hba data structure.
2319 * 4091 *
2320 * This routine is invoked to enable the MSI-X interrupt vectors. The kernel 4092 * This routine is invoked to remove all memory resources allocated
2321 * function pci_enable_msix() is called to enable the MSI-X vectors. Note that 4093 * to support rpis. This routine presumes the caller has released all
2322 * pci_enable_msix(), once invoked, enables either all or nothing, depending 4094 * rpis consumed by fabric or port logins and is prepared to have
2323 * on the current availability of PCI vector resources. The device driver is 4095 * the header pages removed.
2324 * responsible for calling the individual request_irq() to register each MSI-X 4096 **/
2325 * vector with a interrupt handler, which is done in this function. Note that 4097void
4098lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4099{
4100 struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4101
4102 list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4103 &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4104 list_del(&rpi_hdr->list);
4105 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4106 rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4107 kfree(rpi_hdr->dmabuf);
4108 kfree(rpi_hdr);
4109 }
4110
4111 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4112 memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4113}
4114
4115/**
4116 * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4117 * @pdev: pointer to pci device data structure.
4118 *
4119 * This routine is invoked to allocate the driver hba data structure for an
4120 * HBA device. If the allocation is successful, the phba reference to the
4121 * PCI device data structure is set.
4122 *
4123 * Return codes
4124 * pointer to @phba - sucessful
4125 * NULL - error
4126 **/
4127static struct lpfc_hba *
4128lpfc_hba_alloc(struct pci_dev *pdev)
4129{
4130 struct lpfc_hba *phba;
4131
4132 /* Allocate memory for HBA structure */
4133 phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
4134 if (!phba) {
4135 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4136 "1417 Failed to allocate hba struct.\n");
4137 return NULL;
4138 }
4139
4140 /* Set reference to PCI device in HBA structure */
4141 phba->pcidev = pdev;
4142
4143 /* Assign an unused board number */
4144 phba->brd_no = lpfc_get_instance();
4145 if (phba->brd_no < 0) {
4146 kfree(phba);
4147 return NULL;
4148 }
4149
4150 return phba;
4151}
4152
4153/**
4154 * lpfc_hba_free - Free driver hba data structure with a device.
4155 * @phba: pointer to lpfc hba data structure.
4156 *
4157 * This routine is invoked to free the driver hba data structure with an
4158 * HBA device.
4159 **/
4160static void
4161lpfc_hba_free(struct lpfc_hba *phba)
4162{
4163 /* Release the driver assigned board number */
4164 idr_remove(&lpfc_hba_index, phba->brd_no);
4165
4166 kfree(phba);
4167 return;
4168}
4169
4170/**
4171 * lpfc_create_shost - Create hba physical port with associated scsi host.
4172 * @phba: pointer to lpfc hba data structure.
4173 *
4174 * This routine is invoked to create HBA physical port and associate a SCSI
4175 * host with it.
4176 *
4177 * Return codes
4178 * 0 - sucessful
4179 * other values - error
4180 **/
4181static int
4182lpfc_create_shost(struct lpfc_hba *phba)
4183{
4184 struct lpfc_vport *vport;
4185 struct Scsi_Host *shost;
4186
4187 /* Initialize HBA FC structure */
4188 phba->fc_edtov = FF_DEF_EDTOV;
4189 phba->fc_ratov = FF_DEF_RATOV;
4190 phba->fc_altov = FF_DEF_ALTOV;
4191 phba->fc_arbtov = FF_DEF_ARBTOV;
4192
4193 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
4194 if (!vport)
4195 return -ENODEV;
4196
4197 shost = lpfc_shost_from_vport(vport);
4198 phba->pport = vport;
4199 lpfc_debugfs_initialize(vport);
4200 /* Put reference to SCSI host to driver's device private data */
4201 pci_set_drvdata(phba->pcidev, shost);
4202
4203 return 0;
4204}
4205
4206/**
4207 * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4208 * @phba: pointer to lpfc hba data structure.
4209 *
4210 * This routine is invoked to destroy HBA physical port and the associated
4211 * SCSI host.
4212 **/
4213static void
4214lpfc_destroy_shost(struct lpfc_hba *phba)
4215{
4216 struct lpfc_vport *vport = phba->pport;
4217
4218 /* Destroy physical port that associated with the SCSI host */
4219 destroy_port(vport);
4220
4221 return;
4222}
4223
4224/**
4225 * lpfc_setup_bg - Setup Block guard structures and debug areas.
4226 * @phba: pointer to lpfc hba data structure.
4227 * @shost: the shost to be used to detect Block guard settings.
4228 *
4229 * This routine sets up the local Block guard protocol settings for @shost.
4230 * This routine also allocates memory for debugging bg buffers.
4231 **/
4232static void
4233lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
4234{
4235 int pagecnt = 10;
4236 if (lpfc_prot_mask && lpfc_prot_guard) {
4237 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4238 "1478 Registering BlockGuard with the "
4239 "SCSI layer\n");
4240 scsi_host_set_prot(shost, lpfc_prot_mask);
4241 scsi_host_set_guard(shost, lpfc_prot_guard);
4242 }
4243 if (!_dump_buf_data) {
4244 while (pagecnt) {
4245 spin_lock_init(&_dump_buf_lock);
4246 _dump_buf_data =
4247 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4248 if (_dump_buf_data) {
4249 printk(KERN_ERR "BLKGRD allocated %d pages for "
4250 "_dump_buf_data at 0x%p\n",
4251 (1 << pagecnt), _dump_buf_data);
4252 _dump_buf_data_order = pagecnt;
4253 memset(_dump_buf_data, 0,
4254 ((1 << PAGE_SHIFT) << pagecnt));
4255 break;
4256 } else
4257 --pagecnt;
4258 }
4259 if (!_dump_buf_data_order)
4260 printk(KERN_ERR "BLKGRD ERROR unable to allocate "
4261 "memory for hexdump\n");
4262 } else
4263 printk(KERN_ERR "BLKGRD already allocated _dump_buf_data=0x%p"
4264 "\n", _dump_buf_data);
4265 if (!_dump_buf_dif) {
4266 while (pagecnt) {
4267 _dump_buf_dif =
4268 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4269 if (_dump_buf_dif) {
4270 printk(KERN_ERR "BLKGRD allocated %d pages for "
4271 "_dump_buf_dif at 0x%p\n",
4272 (1 << pagecnt), _dump_buf_dif);
4273 _dump_buf_dif_order = pagecnt;
4274 memset(_dump_buf_dif, 0,
4275 ((1 << PAGE_SHIFT) << pagecnt));
4276 break;
4277 } else
4278 --pagecnt;
4279 }
4280 if (!_dump_buf_dif_order)
4281 printk(KERN_ERR "BLKGRD ERROR unable to allocate "
4282 "memory for hexdump\n");
4283 } else
4284 printk(KERN_ERR "BLKGRD already allocated _dump_buf_dif=0x%p\n",
4285 _dump_buf_dif);
4286}
4287
4288/**
4289 * lpfc_post_init_setup - Perform necessary device post initialization setup.
4290 * @phba: pointer to lpfc hba data structure.
4291 *
4292 * This routine is invoked to perform all the necessary post initialization
4293 * setup for the device.
4294 **/
4295static void
4296lpfc_post_init_setup(struct lpfc_hba *phba)
4297{
4298 struct Scsi_Host *shost;
4299 struct lpfc_adapter_event_header adapter_event;
4300
4301 /* Get the default values for Model Name and Description */
4302 lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
4303
4304 /*
4305 * hba setup may have changed the hba_queue_depth so we need to
4306 * adjust the value of can_queue.
4307 */
4308 shost = pci_get_drvdata(phba->pcidev);
4309 shost->can_queue = phba->cfg_hba_queue_depth - 10;
4310 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4311 lpfc_setup_bg(phba, shost);
4312
4313 lpfc_host_attrib_init(shost);
4314
4315 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
4316 spin_lock_irq(shost->host_lock);
4317 lpfc_poll_start_timer(phba);
4318 spin_unlock_irq(shost->host_lock);
4319 }
4320
4321 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4322 "0428 Perform SCSI scan\n");
4323 /* Send board arrival event to upper layer */
4324 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
4325 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
4326 fc_host_post_vendor_event(shost, fc_get_event_number(),
4327 sizeof(adapter_event),
4328 (char *) &adapter_event,
4329 LPFC_NL_VENDOR_ID);
4330 return;
4331}
4332
4333/**
4334 * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
4335 * @phba: pointer to lpfc hba data structure.
4336 *
4337 * This routine is invoked to set up the PCI device memory space for device
4338 * with SLI-3 interface spec.
4339 *
4340 * Return codes
4341 * 0 - sucessful
4342 * other values - error
4343 **/
4344static int
4345lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
4346{
4347 struct pci_dev *pdev;
4348 unsigned long bar0map_len, bar2map_len;
4349 int i, hbq_count;
4350 void *ptr;
4351 int error = -ENODEV;
4352
4353 /* Obtain PCI device reference */
4354 if (!phba->pcidev)
4355 return error;
4356 else
4357 pdev = phba->pcidev;
4358
4359 /* Set the device DMA mask size */
4360 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)
4361 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
4362 return error;
4363
4364 /* Get the bus address of Bar0 and Bar2 and the number of bytes
4365 * required by each mapping.
4366 */
4367 phba->pci_bar0_map = pci_resource_start(pdev, 0);
4368 bar0map_len = pci_resource_len(pdev, 0);
4369
4370 phba->pci_bar2_map = pci_resource_start(pdev, 2);
4371 bar2map_len = pci_resource_len(pdev, 2);
4372
4373 /* Map HBA SLIM to a kernel virtual address. */
4374 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
4375 if (!phba->slim_memmap_p) {
4376 dev_printk(KERN_ERR, &pdev->dev,
4377 "ioremap failed for SLIM memory.\n");
4378 goto out;
4379 }
4380
4381 /* Map HBA Control Registers to a kernel virtual address. */
4382 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
4383 if (!phba->ctrl_regs_memmap_p) {
4384 dev_printk(KERN_ERR, &pdev->dev,
4385 "ioremap failed for HBA control registers.\n");
4386 goto out_iounmap_slim;
4387 }
4388
4389 /* Allocate memory for SLI-2 structures */
4390 phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
4391 SLI2_SLIM_SIZE,
4392 &phba->slim2p.phys,
4393 GFP_KERNEL);
4394 if (!phba->slim2p.virt)
4395 goto out_iounmap;
4396
4397 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
4398 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
4399 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
4400 phba->IOCBs = (phba->slim2p.virt +
4401 offsetof(struct lpfc_sli2_slim, IOCBs));
4402
4403 phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
4404 lpfc_sli_hbq_size(),
4405 &phba->hbqslimp.phys,
4406 GFP_KERNEL);
4407 if (!phba->hbqslimp.virt)
4408 goto out_free_slim;
4409
4410 hbq_count = lpfc_sli_hbq_count();
4411 ptr = phba->hbqslimp.virt;
4412 for (i = 0; i < hbq_count; ++i) {
4413 phba->hbqs[i].hbq_virt = ptr;
4414 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4415 ptr += (lpfc_hbq_defs[i]->entry_count *
4416 sizeof(struct lpfc_hbq_entry));
4417 }
4418 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
4419 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
4420
4421 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
4422
4423 INIT_LIST_HEAD(&phba->rb_pend_list);
4424
4425 phba->MBslimaddr = phba->slim_memmap_p;
4426 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
4427 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
4428 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
4429 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
4430
4431 return 0;
4432
4433out_free_slim:
4434 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
4435 phba->slim2p.virt, phba->slim2p.phys);
4436out_iounmap:
4437 iounmap(phba->ctrl_regs_memmap_p);
4438out_iounmap_slim:
4439 iounmap(phba->slim_memmap_p);
4440out:
4441 return error;
4442}
4443
4444/**
4445 * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
4446 * @phba: pointer to lpfc hba data structure.
4447 *
4448 * This routine is invoked to unset the PCI device memory space for device
4449 * with SLI-3 interface spec.
4450 **/
4451static void
4452lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
4453{
4454 struct pci_dev *pdev;
4455
4456 /* Obtain PCI device reference */
4457 if (!phba->pcidev)
4458 return;
4459 else
4460 pdev = phba->pcidev;
4461
4462 /* Free coherent DMA memory allocated */
4463 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
4464 phba->hbqslimp.virt, phba->hbqslimp.phys);
4465 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
4466 phba->slim2p.virt, phba->slim2p.phys);
4467
4468 /* I/O memory unmap */
4469 iounmap(phba->ctrl_regs_memmap_p);
4470 iounmap(phba->slim_memmap_p);
4471
4472 return;
4473}
4474
4475/**
4476 * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
4477 * @phba: pointer to lpfc hba data structure.
4478 *
4479 * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
4480 * done and check status.
4481 *
4482 * Return 0 if successful, otherwise -ENODEV.
4483 **/
4484int
4485lpfc_sli4_post_status_check(struct lpfc_hba *phba)
4486{
4487 struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg, scratchpad;
4488 uint32_t onlnreg0, onlnreg1;
4489 int i, port_error = -ENODEV;
4490
4491 if (!phba->sli4_hba.STAregaddr)
4492 return -ENODEV;
4493
4494 /* With uncoverable error, log the error message and return error */
4495 onlnreg0 = readl(phba->sli4_hba.ONLINE0regaddr);
4496 onlnreg1 = readl(phba->sli4_hba.ONLINE1regaddr);
4497 if ((onlnreg0 != LPFC_ONLINE_NERR) || (onlnreg1 != LPFC_ONLINE_NERR)) {
4498 uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
4499 uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
4500 if (uerrlo_reg.word0 || uerrhi_reg.word0) {
4501 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4502 "1422 HBA Unrecoverable error: "
4503 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
4504 "online0_reg=0x%x, online1_reg=0x%x\n",
4505 uerrlo_reg.word0, uerrhi_reg.word0,
4506 onlnreg0, onlnreg1);
4507 }
4508 return -ENODEV;
4509 }
4510
4511 /* Wait up to 30 seconds for the SLI Port POST done and ready */
4512 for (i = 0; i < 3000; i++) {
4513 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
4514 /* Encounter fatal POST error, break out */
4515 if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
4516 port_error = -ENODEV;
4517 break;
4518 }
4519 if (LPFC_POST_STAGE_ARMFW_READY ==
4520 bf_get(lpfc_hst_state_port_status, &sta_reg)) {
4521 port_error = 0;
4522 break;
4523 }
4524 msleep(10);
4525 }
4526
4527 if (port_error)
4528 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4529 "1408 Failure HBA POST Status: sta_reg=0x%x, "
4530 "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
4531 "dl=x%x, pstatus=x%x\n", sta_reg.word0,
4532 bf_get(lpfc_hst_state_perr, &sta_reg),
4533 bf_get(lpfc_hst_state_sfi, &sta_reg),
4534 bf_get(lpfc_hst_state_nip, &sta_reg),
4535 bf_get(lpfc_hst_state_ipc, &sta_reg),
4536 bf_get(lpfc_hst_state_xrom, &sta_reg),
4537 bf_get(lpfc_hst_state_dl, &sta_reg),
4538 bf_get(lpfc_hst_state_port_status, &sta_reg));
4539
4540 /* Log device information */
4541 scratchpad.word0 = readl(phba->sli4_hba.SCRATCHPADregaddr);
4542 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4543 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
4544 "FeatureL1=0x%x, FeatureL2=0x%x\n",
4545 bf_get(lpfc_scratchpad_chiptype, &scratchpad),
4546 bf_get(lpfc_scratchpad_slirev, &scratchpad),
4547 bf_get(lpfc_scratchpad_featurelevel1, &scratchpad),
4548 bf_get(lpfc_scratchpad_featurelevel2, &scratchpad));
4549
4550 return port_error;
4551}
4552
4553/**
4554 * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
4555 * @phba: pointer to lpfc hba data structure.
4556 *
4557 * This routine is invoked to set up SLI4 BAR0 PCI config space register
4558 * memory map.
4559 **/
4560static void
4561lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
4562{
4563 phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
4564 LPFC_UERR_STATUS_LO;
4565 phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
4566 LPFC_UERR_STATUS_HI;
4567 phba->sli4_hba.ONLINE0regaddr = phba->sli4_hba.conf_regs_memmap_p +
4568 LPFC_ONLINE0;
4569 phba->sli4_hba.ONLINE1regaddr = phba->sli4_hba.conf_regs_memmap_p +
4570 LPFC_ONLINE1;
4571 phba->sli4_hba.SCRATCHPADregaddr = phba->sli4_hba.conf_regs_memmap_p +
4572 LPFC_SCRATCHPAD;
4573}
4574
4575/**
4576 * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
4577 * @phba: pointer to lpfc hba data structure.
4578 *
4579 * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
4580 * memory map.
4581 **/
4582static void
4583lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
4584{
4585
4586 phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4587 LPFC_HST_STATE;
4588 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4589 LPFC_HST_ISR0;
4590 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4591 LPFC_HST_IMR0;
4592 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
4593 LPFC_HST_ISCR0;
4594 return;
4595}
4596
4597/**
4598 * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
4599 * @phba: pointer to lpfc hba data structure.
4600 * @vf: virtual function number
4601 *
4602 * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
4603 * based on the given viftual function number, @vf.
4604 *
4605 * Return 0 if successful, otherwise -ENODEV.
4606 **/
4607static int
4608lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
4609{
4610 if (vf > LPFC_VIR_FUNC_MAX)
4611 return -ENODEV;
4612
4613 phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4614 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
4615 phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4616 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
4617 phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4618 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
4619 phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4620 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
4621 phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
4622 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
4623 return 0;
4624}
4625
4626/**
4627 * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
4628 * @phba: pointer to lpfc hba data structure.
4629 *
4630 * This routine is invoked to create the bootstrap mailbox
4631 * region consistent with the SLI-4 interface spec. This
4632 * routine allocates all memory necessary to communicate
4633 * mailbox commands to the port and sets up all alignment
4634 * needs. No locks are expected to be held when calling
4635 * this routine.
4636 *
4637 * Return codes
4638 * 0 - sucessful
4639 * ENOMEM - could not allocated memory.
4640 **/
4641static int
4642lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
4643{
4644 uint32_t bmbx_size;
4645 struct lpfc_dmabuf *dmabuf;
4646 struct dma_address *dma_address;
4647 uint32_t pa_addr;
4648 uint64_t phys_addr;
4649
4650 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4651 if (!dmabuf)
4652 return -ENOMEM;
4653
4654 /*
4655 * The bootstrap mailbox region is comprised of 2 parts
4656 * plus an alignment restriction of 16 bytes.
4657 */
4658 bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
4659 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4660 bmbx_size,
4661 &dmabuf->phys,
4662 GFP_KERNEL);
4663 if (!dmabuf->virt) {
4664 kfree(dmabuf);
4665 return -ENOMEM;
4666 }
4667 memset(dmabuf->virt, 0, bmbx_size);
4668
4669 /*
4670 * Initialize the bootstrap mailbox pointers now so that the register
4671 * operations are simple later. The mailbox dma address is required
4672 * to be 16-byte aligned. Also align the virtual memory as each
4673 * maibox is copied into the bmbx mailbox region before issuing the
4674 * command to the port.
4675 */
4676 phba->sli4_hba.bmbx.dmabuf = dmabuf;
4677 phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
4678
4679 phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
4680 LPFC_ALIGN_16_BYTE);
4681 phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
4682 LPFC_ALIGN_16_BYTE);
4683
4684 /*
4685 * Set the high and low physical addresses now. The SLI4 alignment
4686 * requirement is 16 bytes and the mailbox is posted to the port
4687 * as two 30-bit addresses. The other data is a bit marking whether
4688 * the 30-bit address is the high or low address.
4689 * Upcast bmbx aphys to 64bits so shift instruction compiles
4690 * clean on 32 bit machines.
4691 */
4692 dma_address = &phba->sli4_hba.bmbx.dma_address;
4693 phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
4694 pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
4695 dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
4696 LPFC_BMBX_BIT1_ADDR_HI);
4697
4698 pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
4699 dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
4700 LPFC_BMBX_BIT1_ADDR_LO);
4701 return 0;
4702}
4703
4704/**
4705 * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
4706 * @phba: pointer to lpfc hba data structure.
4707 *
4708 * This routine is invoked to teardown the bootstrap mailbox
4709 * region and release all host resources. This routine requires
4710 * the caller to ensure all mailbox commands recovered, no
4711 * additional mailbox comands are sent, and interrupts are disabled
4712 * before calling this routine.
4713 *
4714 **/
4715static void
4716lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
4717{
4718 dma_free_coherent(&phba->pcidev->dev,
4719 phba->sli4_hba.bmbx.bmbx_size,
4720 phba->sli4_hba.bmbx.dmabuf->virt,
4721 phba->sli4_hba.bmbx.dmabuf->phys);
4722
4723 kfree(phba->sli4_hba.bmbx.dmabuf);
4724 memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
4725}
4726
4727/**
4728 * lpfc_sli4_read_config - Get the config parameters.
4729 * @phba: pointer to lpfc hba data structure.
4730 *
4731 * This routine is invoked to read the configuration parameters from the HBA.
4732 * The configuration parameters are used to set the base and maximum values
4733 * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
4734 * allocation for the port.
4735 *
4736 * Return codes
4737 * 0 - sucessful
4738 * ENOMEM - No availble memory
4739 * EIO - The mailbox failed to complete successfully.
4740 **/
4741static int
4742lpfc_sli4_read_config(struct lpfc_hba *phba)
4743{
4744 LPFC_MBOXQ_t *pmb;
4745 struct lpfc_mbx_read_config *rd_config;
4746 uint32_t rc = 0;
4747
4748 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4749 if (!pmb) {
4750 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4751 "2011 Unable to allocate memory for issuing "
4752 "SLI_CONFIG_SPECIAL mailbox command\n");
4753 return -ENOMEM;
4754 }
4755
4756 lpfc_read_config(phba, pmb);
4757
4758 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4759 if (rc != MBX_SUCCESS) {
4760 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4761 "2012 Mailbox failed , mbxCmd x%x "
4762 "READ_CONFIG, mbxStatus x%x\n",
4763 bf_get(lpfc_mqe_command, &pmb->u.mqe),
4764 bf_get(lpfc_mqe_status, &pmb->u.mqe));
4765 rc = -EIO;
4766 } else {
4767 rd_config = &pmb->u.mqe.un.rd_config;
4768 phba->sli4_hba.max_cfg_param.max_xri =
4769 bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
4770 phba->sli4_hba.max_cfg_param.xri_base =
4771 bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
4772 phba->sli4_hba.max_cfg_param.max_vpi =
4773 bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
4774 phba->sli4_hba.max_cfg_param.vpi_base =
4775 bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
4776 phba->sli4_hba.max_cfg_param.max_rpi =
4777 bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
4778 phba->sli4_hba.max_cfg_param.rpi_base =
4779 bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
4780 phba->sli4_hba.max_cfg_param.max_vfi =
4781 bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
4782 phba->sli4_hba.max_cfg_param.vfi_base =
4783 bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
4784 phba->sli4_hba.max_cfg_param.max_fcfi =
4785 bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
4786 phba->sli4_hba.max_cfg_param.fcfi_base =
4787 bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
4788 phba->sli4_hba.max_cfg_param.max_eq =
4789 bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
4790 phba->sli4_hba.max_cfg_param.max_rq =
4791 bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
4792 phba->sli4_hba.max_cfg_param.max_wq =
4793 bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
4794 phba->sli4_hba.max_cfg_param.max_cq =
4795 bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
4796 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
4797 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
4798 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
4799 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
4800 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4801 phba->max_vpi = phba->sli4_hba.max_cfg_param.max_vpi;
4802 phba->max_vports = phba->max_vpi;
4803 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4804 "2003 cfg params XRI(B:%d M:%d), "
4805 "VPI(B:%d M:%d) "
4806 "VFI(B:%d M:%d) "
4807 "RPI(B:%d M:%d) "
4808 "FCFI(B:%d M:%d)\n",
4809 phba->sli4_hba.max_cfg_param.xri_base,
4810 phba->sli4_hba.max_cfg_param.max_xri,
4811 phba->sli4_hba.max_cfg_param.vpi_base,
4812 phba->sli4_hba.max_cfg_param.max_vpi,
4813 phba->sli4_hba.max_cfg_param.vfi_base,
4814 phba->sli4_hba.max_cfg_param.max_vfi,
4815 phba->sli4_hba.max_cfg_param.rpi_base,
4816 phba->sli4_hba.max_cfg_param.max_rpi,
4817 phba->sli4_hba.max_cfg_param.fcfi_base,
4818 phba->sli4_hba.max_cfg_param.max_fcfi);
4819 }
4820 mempool_free(pmb, phba->mbox_mem_pool);
4821
4822 /* Reset the DFT_HBA_Q_DEPTH to the max xri */
4823 if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri))
4824 phba->cfg_hba_queue_depth =
4825 phba->sli4_hba.max_cfg_param.max_xri;
4826 return rc;
4827}
4828
4829/**
4830 * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
4831 * @phba: pointer to lpfc hba data structure.
4832 *
4833 * This routine is invoked to setup the host-side endian order to the
4834 * HBA consistent with the SLI-4 interface spec.
4835 *
4836 * Return codes
4837 * 0 - sucessful
4838 * ENOMEM - No availble memory
4839 * EIO - The mailbox failed to complete successfully.
4840 **/
4841static int
4842lpfc_setup_endian_order(struct lpfc_hba *phba)
4843{
4844 LPFC_MBOXQ_t *mboxq;
4845 uint32_t rc = 0;
4846 uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
4847 HOST_ENDIAN_HIGH_WORD1};
4848
4849 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4850 if (!mboxq) {
4851 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4852 "0492 Unable to allocate memory for issuing "
4853 "SLI_CONFIG_SPECIAL mailbox command\n");
4854 return -ENOMEM;
4855 }
4856
4857 /*
4858 * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
4859 * words to contain special data values and no other data.
4860 */
4861 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
4862 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
4863 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4864 if (rc != MBX_SUCCESS) {
4865 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4866 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
4867 "status x%x\n",
4868 rc);
4869 rc = -EIO;
4870 }
4871
4872 mempool_free(mboxq, phba->mbox_mem_pool);
4873 return rc;
4874}
4875
4876/**
4877 * lpfc_sli4_queue_create - Create all the SLI4 queues
4878 * @phba: pointer to lpfc hba data structure.
4879 *
4880 * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
4881 * operation. For each SLI4 queue type, the parameters such as queue entry
4882 * count (queue depth) shall be taken from the module parameter. For now,
4883 * we just use some constant number as place holder.
4884 *
4885 * Return codes
4886 * 0 - sucessful
4887 * ENOMEM - No availble memory
4888 * EIO - The mailbox failed to complete successfully.
4889 **/
4890static int
4891lpfc_sli4_queue_create(struct lpfc_hba *phba)
4892{
4893 struct lpfc_queue *qdesc;
4894 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
4895 int cfg_fcp_wq_count;
4896 int cfg_fcp_eq_count;
4897
4898 /*
4899 * Sanity check for confiugred queue parameters against the run-time
4900 * device parameters
4901 */
4902
4903 /* Sanity check on FCP fast-path WQ parameters */
4904 cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
4905 if (cfg_fcp_wq_count >
4906 (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
4907 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
4908 LPFC_SP_WQN_DEF;
4909 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
4910 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4911 "2581 Not enough WQs (%d) from "
4912 "the pci function for supporting "
4913 "FCP WQs (%d)\n",
4914 phba->sli4_hba.max_cfg_param.max_wq,
4915 phba->cfg_fcp_wq_count);
4916 goto out_error;
4917 }
4918 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4919 "2582 Not enough WQs (%d) from the pci "
4920 "function for supporting the requested "
4921 "FCP WQs (%d), the actual FCP WQs can "
4922 "be supported: %d\n",
4923 phba->sli4_hba.max_cfg_param.max_wq,
4924 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
4925 }
4926 /* The actual number of FCP work queues adopted */
4927 phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
4928
4929 /* Sanity check on FCP fast-path EQ parameters */
4930 cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
4931 if (cfg_fcp_eq_count >
4932 (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
4933 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
4934 LPFC_SP_EQN_DEF;
4935 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
4936 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4937 "2574 Not enough EQs (%d) from the "
4938 "pci function for supporting FCP "
4939 "EQs (%d)\n",
4940 phba->sli4_hba.max_cfg_param.max_eq,
4941 phba->cfg_fcp_eq_count);
4942 goto out_error;
4943 }
4944 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4945 "2575 Not enough EQs (%d) from the pci "
4946 "function for supporting the requested "
4947 "FCP EQs (%d), the actual FCP EQs can "
4948 "be supported: %d\n",
4949 phba->sli4_hba.max_cfg_param.max_eq,
4950 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
4951 }
4952 /* It does not make sense to have more EQs than WQs */
4953 if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
4954 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4955 "2593 The number of FCP EQs (%d) is more "
4956 "than the number of FCP WQs (%d), take "
4957 "the number of FCP EQs same as than of "
4958 "WQs (%d)\n", cfg_fcp_eq_count,
4959 phba->cfg_fcp_wq_count,
4960 phba->cfg_fcp_wq_count);
4961 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
4962 }
4963 /* The actual number of FCP event queues adopted */
4964 phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
4965 /* The overall number of event queues used */
4966 phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
4967
4968 /*
4969 * Create Event Queues (EQs)
4970 */
4971
4972 /* Get EQ depth from module parameter, fake the default for now */
4973 phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
4974 phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
4975
4976 /* Create slow path event queue */
4977 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
4978 phba->sli4_hba.eq_ecount);
4979 if (!qdesc) {
4980 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4981 "0496 Failed allocate slow-path EQ\n");
4982 goto out_error;
4983 }
4984 phba->sli4_hba.sp_eq = qdesc;
4985
4986 /* Create fast-path FCP Event Queue(s) */
4987 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
4988 phba->cfg_fcp_eq_count), GFP_KERNEL);
4989 if (!phba->sli4_hba.fp_eq) {
4990 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4991 "2576 Failed allocate memory for fast-path "
4992 "EQ record array\n");
4993 goto out_free_sp_eq;
4994 }
4995 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
4996 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
4997 phba->sli4_hba.eq_ecount);
4998 if (!qdesc) {
4999 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5000 "0497 Failed allocate fast-path EQ\n");
5001 goto out_free_fp_eq;
5002 }
5003 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
5004 }
5005
5006 /*
5007 * Create Complete Queues (CQs)
5008 */
5009
5010 /* Get CQ depth from module parameter, fake the default for now */
5011 phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
5012 phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
5013
5014 /* Create slow-path Mailbox Command Complete Queue */
5015 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5016 phba->sli4_hba.cq_ecount);
5017 if (!qdesc) {
5018 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5019 "0500 Failed allocate slow-path mailbox CQ\n");
5020 goto out_free_fp_eq;
5021 }
5022 phba->sli4_hba.mbx_cq = qdesc;
5023
5024 /* Create slow-path ELS Complete Queue */
5025 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5026 phba->sli4_hba.cq_ecount);
5027 if (!qdesc) {
5028 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5029 "0501 Failed allocate slow-path ELS CQ\n");
5030 goto out_free_mbx_cq;
5031 }
5032 phba->sli4_hba.els_cq = qdesc;
5033
5034 /* Create slow-path Unsolicited Receive Complete Queue */
5035 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5036 phba->sli4_hba.cq_ecount);
5037 if (!qdesc) {
5038 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5039 "0502 Failed allocate slow-path USOL RX CQ\n");
5040 goto out_free_els_cq;
5041 }
5042 phba->sli4_hba.rxq_cq = qdesc;
5043
5044 /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5045 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
5046 phba->cfg_fcp_eq_count), GFP_KERNEL);
5047 if (!phba->sli4_hba.fcp_cq) {
5048 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5049 "2577 Failed allocate memory for fast-path "
5050 "CQ record array\n");
5051 goto out_free_rxq_cq;
5052 }
5053 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5054 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5055 phba->sli4_hba.cq_ecount);
5056 if (!qdesc) {
5057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5058 "0499 Failed allocate fast-path FCP "
5059 "CQ (%d)\n", fcp_cqidx);
5060 goto out_free_fcp_cq;
5061 }
5062 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5063 }
5064
5065 /* Create Mailbox Command Queue */
5066 phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
5067 phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
5068
5069 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
5070 phba->sli4_hba.mq_ecount);
5071 if (!qdesc) {
5072 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5073 "0505 Failed allocate slow-path MQ\n");
5074 goto out_free_fcp_cq;
5075 }
5076 phba->sli4_hba.mbx_wq = qdesc;
5077
5078 /*
5079 * Create all the Work Queues (WQs)
5080 */
5081 phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
5082 phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
5083
5084 /* Create slow-path ELS Work Queue */
5085 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5086 phba->sli4_hba.wq_ecount);
5087 if (!qdesc) {
5088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5089 "0504 Failed allocate slow-path ELS WQ\n");
5090 goto out_free_mbx_wq;
5091 }
5092 phba->sli4_hba.els_wq = qdesc;
5093
5094 /* Create fast-path FCP Work Queue(s) */
5095 phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
5096 phba->cfg_fcp_wq_count), GFP_KERNEL);
5097 if (!phba->sli4_hba.fcp_wq) {
5098 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5099 "2578 Failed allocate memory for fast-path "
5100 "WQ record array\n");
5101 goto out_free_els_wq;
5102 }
5103 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5104 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5105 phba->sli4_hba.wq_ecount);
5106 if (!qdesc) {
5107 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5108 "0503 Failed allocate fast-path FCP "
5109 "WQ (%d)\n", fcp_wqidx);
5110 goto out_free_fcp_wq;
5111 }
5112 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
5113 }
5114
5115 /*
5116 * Create Receive Queue (RQ)
5117 */
5118 phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
5119 phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
5120
5121 /* Create Receive Queue for header */
5122 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5123 phba->sli4_hba.rq_ecount);
5124 if (!qdesc) {
5125 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5126 "0506 Failed allocate receive HRQ\n");
5127 goto out_free_fcp_wq;
5128 }
5129 phba->sli4_hba.hdr_rq = qdesc;
5130
5131 /* Create Receive Queue for data */
5132 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5133 phba->sli4_hba.rq_ecount);
5134 if (!qdesc) {
5135 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5136 "0507 Failed allocate receive DRQ\n");
5137 goto out_free_hdr_rq;
5138 }
5139 phba->sli4_hba.dat_rq = qdesc;
5140
5141 return 0;
5142
5143out_free_hdr_rq:
5144 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5145 phba->sli4_hba.hdr_rq = NULL;
5146out_free_fcp_wq:
5147 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
5148 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
5149 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
5150 }
5151 kfree(phba->sli4_hba.fcp_wq);
5152out_free_els_wq:
5153 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5154 phba->sli4_hba.els_wq = NULL;
5155out_free_mbx_wq:
5156 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5157 phba->sli4_hba.mbx_wq = NULL;
5158out_free_fcp_cq:
5159 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
5160 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
5161 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
5162 }
5163 kfree(phba->sli4_hba.fcp_cq);
5164out_free_rxq_cq:
5165 lpfc_sli4_queue_free(phba->sli4_hba.rxq_cq);
5166 phba->sli4_hba.rxq_cq = NULL;
5167out_free_els_cq:
5168 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5169 phba->sli4_hba.els_cq = NULL;
5170out_free_mbx_cq:
5171 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5172 phba->sli4_hba.mbx_cq = NULL;
5173out_free_fp_eq:
5174 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
5175 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
5176 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
5177 }
5178 kfree(phba->sli4_hba.fp_eq);
5179out_free_sp_eq:
5180 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5181 phba->sli4_hba.sp_eq = NULL;
5182out_error:
5183 return -ENOMEM;
5184}
5185
5186/**
5187 * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5188 * @phba: pointer to lpfc hba data structure.
5189 *
5190 * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5191 * operation.
5192 *
5193 * Return codes
5194 * 0 - sucessful
5195 * ENOMEM - No availble memory
5196 * EIO - The mailbox failed to complete successfully.
5197 **/
5198static void
5199lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
5200{
5201 int fcp_qidx;
5202
5203 /* Release mailbox command work queue */
5204 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5205 phba->sli4_hba.mbx_wq = NULL;
5206
5207 /* Release ELS work queue */
5208 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5209 phba->sli4_hba.els_wq = NULL;
5210
5211 /* Release FCP work queue */
5212 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5213 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
5214 kfree(phba->sli4_hba.fcp_wq);
5215 phba->sli4_hba.fcp_wq = NULL;
5216
5217 /* Release unsolicited receive queue */
5218 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5219 phba->sli4_hba.hdr_rq = NULL;
5220 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
5221 phba->sli4_hba.dat_rq = NULL;
5222
5223 /* Release unsolicited receive complete queue */
5224 lpfc_sli4_queue_free(phba->sli4_hba.rxq_cq);
5225 phba->sli4_hba.rxq_cq = NULL;
5226
5227 /* Release ELS complete queue */
5228 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5229 phba->sli4_hba.els_cq = NULL;
5230
5231 /* Release mailbox command complete queue */
5232 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5233 phba->sli4_hba.mbx_cq = NULL;
5234
5235 /* Release FCP response complete queue */
5236 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5237 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
5238 kfree(phba->sli4_hba.fcp_cq);
5239 phba->sli4_hba.fcp_cq = NULL;
5240
5241 /* Release fast-path event queue */
5242 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5243 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
5244 kfree(phba->sli4_hba.fp_eq);
5245 phba->sli4_hba.fp_eq = NULL;
5246
5247 /* Release slow-path event queue */
5248 lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5249 phba->sli4_hba.sp_eq = NULL;
5250
5251 return;
5252}
5253
5254/**
5255 * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5256 * @phba: pointer to lpfc hba data structure.
5257 *
5258 * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5259 * operation.
5260 *
5261 * Return codes
5262 * 0 - sucessful
5263 * ENOMEM - No availble memory
5264 * EIO - The mailbox failed to complete successfully.
5265 **/
5266int
5267lpfc_sli4_queue_setup(struct lpfc_hba *phba)
5268{
5269 int rc = -ENOMEM;
5270 int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5271 int fcp_cq_index = 0;
5272
5273 /*
5274 * Set up Event Queues (EQs)
5275 */
5276
5277 /* Set up slow-path event queue */
5278 if (!phba->sli4_hba.sp_eq) {
5279 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5280 "0520 Slow-path EQ not allocated\n");
5281 goto out_error;
5282 }
5283 rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
5284 LPFC_SP_DEF_IMAX);
5285 if (rc) {
5286 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5287 "0521 Failed setup of slow-path EQ: "
5288 "rc = 0x%x\n", rc);
5289 goto out_error;
5290 }
5291 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5292 "2583 Slow-path EQ setup: queue-id=%d\n",
5293 phba->sli4_hba.sp_eq->queue_id);
5294
5295 /* Set up fast-path event queue */
5296 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5297 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
5298 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5299 "0522 Fast-path EQ (%d) not "
5300 "allocated\n", fcp_eqidx);
5301 goto out_destroy_fp_eq;
5302 }
5303 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
5304 phba->cfg_fcp_imax);
5305 if (rc) {
5306 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5307 "0523 Failed setup of fast-path EQ "
5308 "(%d), rc = 0x%x\n", fcp_eqidx, rc);
5309 goto out_destroy_fp_eq;
5310 }
5311 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5312 "2584 Fast-path EQ setup: "
5313 "queue[%d]-id=%d\n", fcp_eqidx,
5314 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
5315 }
5316
5317 /*
5318 * Set up Complete Queues (CQs)
5319 */
5320
5321 /* Set up slow-path MBOX Complete Queue as the first CQ */
5322 if (!phba->sli4_hba.mbx_cq) {
5323 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5324 "0528 Mailbox CQ not allocated\n");
5325 goto out_destroy_fp_eq;
5326 }
5327 rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
5328 LPFC_MCQ, LPFC_MBOX);
5329 if (rc) {
5330 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5331 "0529 Failed setup of slow-path mailbox CQ: "
5332 "rc = 0x%x\n", rc);
5333 goto out_destroy_fp_eq;
5334 }
5335 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5336 "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
5337 phba->sli4_hba.mbx_cq->queue_id,
5338 phba->sli4_hba.sp_eq->queue_id);
5339
5340 /* Set up slow-path ELS Complete Queue */
5341 if (!phba->sli4_hba.els_cq) {
5342 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5343 "0530 ELS CQ not allocated\n");
5344 goto out_destroy_mbx_cq;
5345 }
5346 rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
5347 LPFC_WCQ, LPFC_ELS);
5348 if (rc) {
5349 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5350 "0531 Failed setup of slow-path ELS CQ: "
5351 "rc = 0x%x\n", rc);
5352 goto out_destroy_mbx_cq;
5353 }
5354 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5355 "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
5356 phba->sli4_hba.els_cq->queue_id,
5357 phba->sli4_hba.sp_eq->queue_id);
5358
5359 /* Set up slow-path Unsolicited Receive Complete Queue */
5360 if (!phba->sli4_hba.rxq_cq) {
5361 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5362 "0532 USOL RX CQ not allocated\n");
5363 goto out_destroy_els_cq;
5364 }
5365 rc = lpfc_cq_create(phba, phba->sli4_hba.rxq_cq, phba->sli4_hba.sp_eq,
5366 LPFC_RCQ, LPFC_USOL);
5367 if (rc) {
5368 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5369 "0533 Failed setup of slow-path USOL RX CQ: "
5370 "rc = 0x%x\n", rc);
5371 goto out_destroy_els_cq;
5372 }
5373 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5374 "2587 USL CQ setup: cq-id=%d, parent eq-id=%d\n",
5375 phba->sli4_hba.rxq_cq->queue_id,
5376 phba->sli4_hba.sp_eq->queue_id);
5377
5378 /* Set up fast-path FCP Response Complete Queue */
5379 for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5380 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
5381 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5382 "0526 Fast-path FCP CQ (%d) not "
5383 "allocated\n", fcp_cqidx);
5384 goto out_destroy_fcp_cq;
5385 }
5386 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
5387 phba->sli4_hba.fp_eq[fcp_cqidx],
5388 LPFC_WCQ, LPFC_FCP);
5389 if (rc) {
5390 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5391 "0527 Failed setup of fast-path FCP "
5392 "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
5393 goto out_destroy_fcp_cq;
5394 }
5395 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5396 "2588 FCP CQ setup: cq[%d]-id=%d, "
5397 "parent eq[%d]-id=%d\n",
5398 fcp_cqidx,
5399 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
5400 fcp_cqidx,
5401 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
5402 }
5403
5404 /*
5405 * Set up all the Work Queues (WQs)
5406 */
5407
5408 /* Set up Mailbox Command Queue */
5409 if (!phba->sli4_hba.mbx_wq) {
5410 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5411 "0538 Slow-path MQ not allocated\n");
5412 goto out_destroy_fcp_cq;
5413 }
5414 rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
5415 phba->sli4_hba.mbx_cq, LPFC_MBOX);
5416 if (rc) {
5417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5418 "0539 Failed setup of slow-path MQ: "
5419 "rc = 0x%x\n", rc);
5420 goto out_destroy_fcp_cq;
5421 }
5422 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5423 "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
5424 phba->sli4_hba.mbx_wq->queue_id,
5425 phba->sli4_hba.mbx_cq->queue_id);
5426
5427 /* Set up slow-path ELS Work Queue */
5428 if (!phba->sli4_hba.els_wq) {
5429 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5430 "0536 Slow-path ELS WQ not allocated\n");
5431 goto out_destroy_mbx_wq;
5432 }
5433 rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
5434 phba->sli4_hba.els_cq, LPFC_ELS);
5435 if (rc) {
5436 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5437 "0537 Failed setup of slow-path ELS WQ: "
5438 "rc = 0x%x\n", rc);
5439 goto out_destroy_mbx_wq;
5440 }
5441 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5442 "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
5443 phba->sli4_hba.els_wq->queue_id,
5444 phba->sli4_hba.els_cq->queue_id);
5445
5446 /* Set up fast-path FCP Work Queue */
5447 for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5448 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
5449 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5450 "0534 Fast-path FCP WQ (%d) not "
5451 "allocated\n", fcp_wqidx);
5452 goto out_destroy_fcp_wq;
5453 }
5454 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
5455 phba->sli4_hba.fcp_cq[fcp_cq_index],
5456 LPFC_FCP);
5457 if (rc) {
5458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5459 "0535 Failed setup of fast-path FCP "
5460 "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
5461 goto out_destroy_fcp_wq;
5462 }
5463 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5464 "2591 FCP WQ setup: wq[%d]-id=%d, "
5465 "parent cq[%d]-id=%d\n",
5466 fcp_wqidx,
5467 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
5468 fcp_cq_index,
5469 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
5470 /* Round robin FCP Work Queue's Completion Queue assignment */
5471 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
5472 }
5473
5474 /*
5475 * Create Receive Queue (RQ)
5476 */
5477 if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
5478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5479 "0540 Receive Queue not allocated\n");
5480 goto out_destroy_fcp_wq;
5481 }
5482 rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
5483 phba->sli4_hba.rxq_cq, LPFC_USOL);
5484 if (rc) {
5485 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5486 "0541 Failed setup of Receive Queue: "
5487 "rc = 0x%x\n", rc);
5488 goto out_destroy_fcp_wq;
5489 }
5490 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5491 "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
5492 "parent cq-id=%d\n",
5493 phba->sli4_hba.hdr_rq->queue_id,
5494 phba->sli4_hba.dat_rq->queue_id,
5495 phba->sli4_hba.rxq_cq->queue_id);
5496 return 0;
5497
5498out_destroy_fcp_wq:
5499 for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
5500 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
5501 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
5502out_destroy_mbx_wq:
5503 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
5504out_destroy_fcp_cq:
5505 for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
5506 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
5507 lpfc_cq_destroy(phba, phba->sli4_hba.rxq_cq);
5508out_destroy_els_cq:
5509 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
5510out_destroy_mbx_cq:
5511 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
5512out_destroy_fp_eq:
5513 for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
5514 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
5515 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
5516out_error:
5517 return rc;
5518}
5519
5520/**
5521 * lpfc_sli4_queue_unset - Unset all the SLI4 queues
5522 * @phba: pointer to lpfc hba data structure.
5523 *
5524 * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
5525 * operation.
5526 *
5527 * Return codes
5528 * 0 - sucessful
5529 * ENOMEM - No availble memory
5530 * EIO - The mailbox failed to complete successfully.
5531 **/
5532void
5533lpfc_sli4_queue_unset(struct lpfc_hba *phba)
5534{
5535 int fcp_qidx;
5536
5537 /* Unset mailbox command work queue */
5538 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
5539 /* Unset ELS work queue */
5540 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
5541 /* Unset unsolicited receive queue */
5542 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
5543 /* Unset FCP work queue */
5544 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5545 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
5546 /* Unset mailbox command complete queue */
5547 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
5548 /* Unset ELS complete queue */
5549 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
5550 /* Unset unsolicited receive complete queue */
5551 lpfc_cq_destroy(phba, phba->sli4_hba.rxq_cq);
5552 /* Unset FCP response complete queue */
5553 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5554 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
5555 /* Unset fast-path event queue */
5556 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5557 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
5558 /* Unset slow-path event queue */
5559 lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
5560}
5561
5562/**
5563 * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
5564 * @phba: pointer to lpfc hba data structure.
5565 *
5566 * This routine is invoked to allocate and set up a pool of completion queue
5567 * events. The body of the completion queue event is a completion queue entry
5568 * CQE. For now, this pool is used for the interrupt service routine to queue
5569 * the following HBA completion queue events for the worker thread to process:
5570 * - Mailbox asynchronous events
5571 * - Receive queue completion unsolicited events
5572 * Later, this can be used for all the slow-path events.
5573 *
5574 * Return codes
5575 * 0 - sucessful
5576 * -ENOMEM - No availble memory
5577 **/
5578static int
5579lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
5580{
5581 struct lpfc_cq_event *cq_event;
5582 int i;
5583
5584 for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
5585 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
5586 if (!cq_event)
5587 goto out_pool_create_fail;
5588 list_add_tail(&cq_event->list,
5589 &phba->sli4_hba.sp_cqe_event_pool);
5590 }
5591 return 0;
5592
5593out_pool_create_fail:
5594 lpfc_sli4_cq_event_pool_destroy(phba);
5595 return -ENOMEM;
5596}
5597
5598/**
5599 * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
5600 * @phba: pointer to lpfc hba data structure.
5601 *
5602 * This routine is invoked to free the pool of completion queue events at
5603 * driver unload time. Note that, it is the responsibility of the driver
5604 * cleanup routine to free all the outstanding completion-queue events
5605 * allocated from this pool back into the pool before invoking this routine
5606 * to destroy the pool.
5607 **/
5608static void
5609lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
5610{
5611 struct lpfc_cq_event *cq_event, *next_cq_event;
5612
5613 list_for_each_entry_safe(cq_event, next_cq_event,
5614 &phba->sli4_hba.sp_cqe_event_pool, list) {
5615 list_del(&cq_event->list);
5616 kfree(cq_event);
5617 }
5618}
5619
5620/**
5621 * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
5622 * @phba: pointer to lpfc hba data structure.
5623 *
5624 * This routine is the lock free version of the API invoked to allocate a
5625 * completion-queue event from the free pool.
5626 *
5627 * Return: Pointer to the newly allocated completion-queue event if successful
5628 * NULL otherwise.
5629 **/
5630struct lpfc_cq_event *
5631__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
5632{
5633 struct lpfc_cq_event *cq_event = NULL;
5634
5635 list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
5636 struct lpfc_cq_event, list);
5637 return cq_event;
5638}
5639
5640/**
5641 * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
5642 * @phba: pointer to lpfc hba data structure.
5643 *
5644 * This routine is the lock version of the API invoked to allocate a
5645 * completion-queue event from the free pool.
5646 *
5647 * Return: Pointer to the newly allocated completion-queue event if successful
5648 * NULL otherwise.
5649 **/
5650struct lpfc_cq_event *
5651lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
5652{
5653 struct lpfc_cq_event *cq_event;
5654 unsigned long iflags;
5655
5656 spin_lock_irqsave(&phba->hbalock, iflags);
5657 cq_event = __lpfc_sli4_cq_event_alloc(phba);
5658 spin_unlock_irqrestore(&phba->hbalock, iflags);
5659 return cq_event;
5660}
5661
5662/**
5663 * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
5664 * @phba: pointer to lpfc hba data structure.
5665 * @cq_event: pointer to the completion queue event to be freed.
5666 *
5667 * This routine is the lock free version of the API invoked to release a
5668 * completion-queue event back into the free pool.
5669 **/
5670void
5671__lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
5672 struct lpfc_cq_event *cq_event)
5673{
5674 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
5675}
5676
5677/**
5678 * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
5679 * @phba: pointer to lpfc hba data structure.
5680 * @cq_event: pointer to the completion queue event to be freed.
5681 *
5682 * This routine is the lock version of the API invoked to release a
5683 * completion-queue event back into the free pool.
5684 **/
5685void
5686lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
5687 struct lpfc_cq_event *cq_event)
5688{
5689 unsigned long iflags;
5690 spin_lock_irqsave(&phba->hbalock, iflags);
5691 __lpfc_sli4_cq_event_release(phba, cq_event);
5692 spin_unlock_irqrestore(&phba->hbalock, iflags);
5693}
5694
5695/**
5696 * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
5697 * @phba: pointer to lpfc hba data structure.
5698 *
5699 * This routine is to free all the pending completion-queue events to the
5700 * back into the free pool for device reset.
5701 **/
5702static void
5703lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
5704{
5705 LIST_HEAD(cqelist);
5706 struct lpfc_cq_event *cqe;
5707 unsigned long iflags;
5708
5709 /* Retrieve all the pending WCQEs from pending WCQE lists */
5710 spin_lock_irqsave(&phba->hbalock, iflags);
5711 /* Pending FCP XRI abort events */
5712 list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
5713 &cqelist);
5714 /* Pending ELS XRI abort events */
5715 list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
5716 &cqelist);
5717 /* Pending asynnc events */
5718 list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
5719 &cqelist);
5720 spin_unlock_irqrestore(&phba->hbalock, iflags);
5721
5722 while (!list_empty(&cqelist)) {
5723 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
5724 lpfc_sli4_cq_event_release(phba, cqe);
5725 }
5726}
5727
5728/**
5729 * lpfc_pci_function_reset - Reset pci function.
5730 * @phba: pointer to lpfc hba data structure.
5731 *
5732 * This routine is invoked to request a PCI function reset. It will destroys
5733 * all resources assigned to the PCI function which originates this request.
5734 *
5735 * Return codes
5736 * 0 - sucessful
5737 * ENOMEM - No availble memory
5738 * EIO - The mailbox failed to complete successfully.
5739 **/
5740int
5741lpfc_pci_function_reset(struct lpfc_hba *phba)
5742{
5743 LPFC_MBOXQ_t *mboxq;
5744 uint32_t rc = 0;
5745 uint32_t shdr_status, shdr_add_status;
5746 union lpfc_sli4_cfg_shdr *shdr;
5747
5748 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5749 if (!mboxq) {
5750 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5751 "0494 Unable to allocate memory for issuing "
5752 "SLI_FUNCTION_RESET mailbox command\n");
5753 return -ENOMEM;
5754 }
5755
5756 /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
5757 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5758 LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
5759 LPFC_SLI4_MBX_EMBED);
5760 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5761 shdr = (union lpfc_sli4_cfg_shdr *)
5762 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
5763 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5764 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5765 if (rc != MBX_TIMEOUT)
5766 mempool_free(mboxq, phba->mbox_mem_pool);
5767 if (shdr_status || shdr_add_status || rc) {
5768 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5769 "0495 SLI_FUNCTION_RESET mailbox failed with "
5770 "status x%x add_status x%x, mbx status x%x\n",
5771 shdr_status, shdr_add_status, rc);
5772 rc = -ENXIO;
5773 }
5774 return rc;
5775}
5776
5777/**
5778 * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
5779 * @phba: pointer to lpfc hba data structure.
5780 * @cnt: number of nop mailbox commands to send.
5781 *
5782 * This routine is invoked to send a number @cnt of NOP mailbox command and
5783 * wait for each command to complete.
5784 *
5785 * Return: the number of NOP mailbox command completed.
5786 **/
5787static int
5788lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
5789{
5790 LPFC_MBOXQ_t *mboxq;
5791 int length, cmdsent;
5792 uint32_t mbox_tmo;
5793 uint32_t rc = 0;
5794 uint32_t shdr_status, shdr_add_status;
5795 union lpfc_sli4_cfg_shdr *shdr;
5796
5797 if (cnt == 0) {
5798 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5799 "2518 Requested to send 0 NOP mailbox cmd\n");
5800 return cnt;
5801 }
5802
5803 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5804 if (!mboxq) {
5805 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5806 "2519 Unable to allocate memory for issuing "
5807 "NOP mailbox command\n");
5808 return 0;
5809 }
5810
5811 /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
5812 length = (sizeof(struct lpfc_mbx_nop) -
5813 sizeof(struct lpfc_sli4_cfg_mhdr));
5814 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5815 LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
5816
5817 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
5818 for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
5819 if (!phba->sli4_hba.intr_enable)
5820 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5821 else
5822 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
5823 if (rc == MBX_TIMEOUT)
5824 break;
5825 /* Check return status */
5826 shdr = (union lpfc_sli4_cfg_shdr *)
5827 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
5828 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5829 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
5830 &shdr->response);
5831 if (shdr_status || shdr_add_status || rc) {
5832 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5833 "2520 NOP mailbox command failed "
5834 "status x%x add_status x%x mbx "
5835 "status x%x\n", shdr_status,
5836 shdr_add_status, rc);
5837 break;
5838 }
5839 }
5840
5841 if (rc != MBX_TIMEOUT)
5842 mempool_free(mboxq, phba->mbox_mem_pool);
5843
5844 return cmdsent;
5845}
5846
5847/**
5848 * lpfc_sli4_fcfi_unreg - Unregister fcfi to device
5849 * @phba: pointer to lpfc hba data structure.
5850 * @fcfi: fcf index.
5851 *
5852 * This routine is invoked to unregister a FCFI from device.
5853 **/
5854void
5855lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi)
5856{
5857 LPFC_MBOXQ_t *mbox;
5858 uint32_t mbox_tmo;
5859 int rc;
5860 unsigned long flags;
5861
5862 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5863
5864 if (!mbox)
5865 return;
5866
5867 lpfc_unreg_fcfi(mbox, fcfi);
5868
5869 if (!phba->sli4_hba.intr_enable)
5870 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5871 else {
5872 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
5873 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5874 }
5875 if (rc != MBX_TIMEOUT)
5876 mempool_free(mbox, phba->mbox_mem_pool);
5877 if (rc != MBX_SUCCESS)
5878 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5879 "2517 Unregister FCFI command failed "
5880 "status %d, mbxStatus x%x\n", rc,
5881 bf_get(lpfc_mqe_status, &mbox->u.mqe));
5882 else {
5883 spin_lock_irqsave(&phba->hbalock, flags);
5884 /* Mark the FCFI is no longer registered */
5885 phba->fcf.fcf_flag &=
5886 ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_DISCOVERED);
5887 spin_unlock_irqrestore(&phba->hbalock, flags);
5888 }
5889}
5890
5891/**
5892 * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
5893 * @phba: pointer to lpfc hba data structure.
5894 *
5895 * This routine is invoked to set up the PCI device memory space for device
5896 * with SLI-4 interface spec.
5897 *
5898 * Return codes
5899 * 0 - sucessful
5900 * other values - error
5901 **/
5902static int
5903lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
5904{
5905 struct pci_dev *pdev;
5906 unsigned long bar0map_len, bar1map_len, bar2map_len;
5907 int error = -ENODEV;
5908
5909 /* Obtain PCI device reference */
5910 if (!phba->pcidev)
5911 return error;
5912 else
5913 pdev = phba->pcidev;
5914
5915 /* Set the device DMA mask size */
5916 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0)
5917 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0)
5918 return error;
5919
5920 /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
5921 * number of bytes required by each mapping. They are actually
5922 * mapping to the PCI BAR regions 1, 2, and 4 by the SLI4 device.
5923 */
5924 phba->pci_bar0_map = pci_resource_start(pdev, LPFC_SLI4_BAR0);
5925 bar0map_len = pci_resource_len(pdev, LPFC_SLI4_BAR0);
5926
5927 phba->pci_bar1_map = pci_resource_start(pdev, LPFC_SLI4_BAR1);
5928 bar1map_len = pci_resource_len(pdev, LPFC_SLI4_BAR1);
5929
5930 phba->pci_bar2_map = pci_resource_start(pdev, LPFC_SLI4_BAR2);
5931 bar2map_len = pci_resource_len(pdev, LPFC_SLI4_BAR2);
5932
5933 /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
5934 phba->sli4_hba.conf_regs_memmap_p =
5935 ioremap(phba->pci_bar0_map, bar0map_len);
5936 if (!phba->sli4_hba.conf_regs_memmap_p) {
5937 dev_printk(KERN_ERR, &pdev->dev,
5938 "ioremap failed for SLI4 PCI config registers.\n");
5939 goto out;
5940 }
5941
5942 /* Map SLI4 HBA Control Register base to a kernel virtual address. */
5943 phba->sli4_hba.ctrl_regs_memmap_p =
5944 ioremap(phba->pci_bar1_map, bar1map_len);
5945 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
5946 dev_printk(KERN_ERR, &pdev->dev,
5947 "ioremap failed for SLI4 HBA control registers.\n");
5948 goto out_iounmap_conf;
5949 }
5950
5951 /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
5952 phba->sli4_hba.drbl_regs_memmap_p =
5953 ioremap(phba->pci_bar2_map, bar2map_len);
5954 if (!phba->sli4_hba.drbl_regs_memmap_p) {
5955 dev_printk(KERN_ERR, &pdev->dev,
5956 "ioremap failed for SLI4 HBA doorbell registers.\n");
5957 goto out_iounmap_ctrl;
5958 }
5959
5960 /* Set up BAR0 PCI config space register memory map */
5961 lpfc_sli4_bar0_register_memmap(phba);
5962
5963 /* Set up BAR1 register memory map */
5964 lpfc_sli4_bar1_register_memmap(phba);
5965
5966 /* Set up BAR2 register memory map */
5967 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
5968 if (error)
5969 goto out_iounmap_all;
5970
5971 return 0;
5972
5973out_iounmap_all:
5974 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
5975out_iounmap_ctrl:
5976 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
5977out_iounmap_conf:
5978 iounmap(phba->sli4_hba.conf_regs_memmap_p);
5979out:
5980 return error;
5981}
5982
5983/**
5984 * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
5985 * @phba: pointer to lpfc hba data structure.
5986 *
5987 * This routine is invoked to unset the PCI device memory space for device
5988 * with SLI-4 interface spec.
5989 **/
5990static void
5991lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
5992{
5993 struct pci_dev *pdev;
5994
5995 /* Obtain PCI device reference */
5996 if (!phba->pcidev)
5997 return;
5998 else
5999 pdev = phba->pcidev;
6000
6001 /* Free coherent DMA memory allocated */
6002
6003 /* Unmap I/O memory space */
6004 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6005 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6006 iounmap(phba->sli4_hba.conf_regs_memmap_p);
6007
6008 return;
6009}
6010
6011/**
6012 * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6013 * @phba: pointer to lpfc hba data structure.
6014 *
6015 * This routine is invoked to enable the MSI-X interrupt vectors to device
6016 * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6017 * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6018 * invoked, enables either all or nothing, depending on the current
6019 * availability of PCI vector resources. The device driver is responsible
6020 * for calling the individual request_irq() to register each MSI-X vector
6021 * with a interrupt handler, which is done in this function. Note that
2326 * later when device is unloading, the driver should always call free_irq() 6022 * later when device is unloading, the driver should always call free_irq()
2327 * on all MSI-X vectors it has done request_irq() on before calling 6023 * on all MSI-X vectors it has done request_irq() on before calling
2328 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device 6024 * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
@@ -2333,7 +6029,7 @@ void lpfc_host_attrib_init(struct Scsi_Host *shost)
2333 * other values - error 6029 * other values - error
2334 **/ 6030 **/
2335static int 6031static int
2336lpfc_enable_msix(struct lpfc_hba *phba) 6032lpfc_sli_enable_msix(struct lpfc_hba *phba)
2337{ 6033{
2338 int rc, i; 6034 int rc, i;
2339 LPFC_MBOXQ_t *pmb; 6035 LPFC_MBOXQ_t *pmb;
@@ -2349,20 +6045,21 @@ lpfc_enable_msix(struct lpfc_hba *phba)
2349 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6045 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2350 "0420 PCI enable MSI-X failed (%d)\n", rc); 6046 "0420 PCI enable MSI-X failed (%d)\n", rc);
2351 goto msi_fail_out; 6047 goto msi_fail_out;
2352 } else 6048 }
2353 for (i = 0; i < LPFC_MSIX_VECTORS; i++) 6049 for (i = 0; i < LPFC_MSIX_VECTORS; i++)
2354 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6050 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2355 "0477 MSI-X entry[%d]: vector=x%x " 6051 "0477 MSI-X entry[%d]: vector=x%x "
2356 "message=%d\n", i, 6052 "message=%d\n", i,
2357 phba->msix_entries[i].vector, 6053 phba->msix_entries[i].vector,
2358 phba->msix_entries[i].entry); 6054 phba->msix_entries[i].entry);
2359 /* 6055 /*
2360 * Assign MSI-X vectors to interrupt handlers 6056 * Assign MSI-X vectors to interrupt handlers
2361 */ 6057 */
2362 6058
2363 /* vector-0 is associated to slow-path handler */ 6059 /* vector-0 is associated to slow-path handler */
2364 rc = request_irq(phba->msix_entries[0].vector, &lpfc_sp_intr_handler, 6060 rc = request_irq(phba->msix_entries[0].vector,
2365 IRQF_SHARED, LPFC_SP_DRIVER_HANDLER_NAME, phba); 6061 &lpfc_sli_sp_intr_handler, IRQF_SHARED,
6062 LPFC_SP_DRIVER_HANDLER_NAME, phba);
2366 if (rc) { 6063 if (rc) {
2367 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6064 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2368 "0421 MSI-X slow-path request_irq failed " 6065 "0421 MSI-X slow-path request_irq failed "
@@ -2371,8 +6068,9 @@ lpfc_enable_msix(struct lpfc_hba *phba)
2371 } 6068 }
2372 6069
2373 /* vector-1 is associated to fast-path handler */ 6070 /* vector-1 is associated to fast-path handler */
2374 rc = request_irq(phba->msix_entries[1].vector, &lpfc_fp_intr_handler, 6071 rc = request_irq(phba->msix_entries[1].vector,
2375 IRQF_SHARED, LPFC_FP_DRIVER_HANDLER_NAME, phba); 6072 &lpfc_sli_fp_intr_handler, IRQF_SHARED,
6073 LPFC_FP_DRIVER_HANDLER_NAME, phba);
2376 6074
2377 if (rc) { 6075 if (rc) {
2378 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, 6076 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
@@ -2401,7 +6099,7 @@ lpfc_enable_msix(struct lpfc_hba *phba)
2401 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, 6099 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
2402 "0351 Config MSI mailbox command failed, " 6100 "0351 Config MSI mailbox command failed, "
2403 "mbxCmd x%x, mbxStatus x%x\n", 6101 "mbxCmd x%x, mbxStatus x%x\n",
2404 pmb->mb.mbxCommand, pmb->mb.mbxStatus); 6102 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
2405 goto mbx_fail_out; 6103 goto mbx_fail_out;
2406 } 6104 }
2407 6105
@@ -2428,14 +6126,14 @@ msi_fail_out:
2428} 6126}
2429 6127
2430/** 6128/**
2431 * lpfc_disable_msix - Disable MSI-X interrupt mode 6129 * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
2432 * @phba: pointer to lpfc hba data structure. 6130 * @phba: pointer to lpfc hba data structure.
2433 * 6131 *
2434 * This routine is invoked to release the MSI-X vectors and then disable the 6132 * This routine is invoked to release the MSI-X vectors and then disable the
2435 * MSI-X interrupt mode. 6133 * MSI-X interrupt mode to device with SLI-3 interface spec.
2436 **/ 6134 **/
2437static void 6135static void
2438lpfc_disable_msix(struct lpfc_hba *phba) 6136lpfc_sli_disable_msix(struct lpfc_hba *phba)
2439{ 6137{
2440 int i; 6138 int i;
2441 6139
@@ -2444,23 +6142,26 @@ lpfc_disable_msix(struct lpfc_hba *phba)
2444 free_irq(phba->msix_entries[i].vector, phba); 6142 free_irq(phba->msix_entries[i].vector, phba);
2445 /* Disable MSI-X */ 6143 /* Disable MSI-X */
2446 pci_disable_msix(phba->pcidev); 6144 pci_disable_msix(phba->pcidev);
6145
6146 return;
2447} 6147}
2448 6148
2449/** 6149/**
2450 * lpfc_enable_msi - Enable MSI interrupt mode 6150 * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
2451 * @phba: pointer to lpfc hba data structure. 6151 * @phba: pointer to lpfc hba data structure.
2452 * 6152 *
2453 * This routine is invoked to enable the MSI interrupt mode. The kernel 6153 * This routine is invoked to enable the MSI interrupt mode to device with
2454 * function pci_enable_msi() is called to enable the MSI vector. The 6154 * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
2455 * device driver is responsible for calling the request_irq() to register 6155 * enable the MSI vector. The device driver is responsible for calling the
2456 * MSI vector with a interrupt the handler, which is done in this function. 6156 * request_irq() to register MSI vector with a interrupt the handler, which
6157 * is done in this function.
2457 * 6158 *
2458 * Return codes 6159 * Return codes
2459 * 0 - sucessful 6160 * 0 - sucessful
2460 * other values - error 6161 * other values - error
2461 */ 6162 */
2462static int 6163static int
2463lpfc_enable_msi(struct lpfc_hba *phba) 6164lpfc_sli_enable_msi(struct lpfc_hba *phba)
2464{ 6165{
2465 int rc; 6166 int rc;
2466 6167
@@ -2474,7 +6175,7 @@ lpfc_enable_msi(struct lpfc_hba *phba)
2474 return rc; 6175 return rc;
2475 } 6176 }
2476 6177
2477 rc = request_irq(phba->pcidev->irq, lpfc_intr_handler, 6178 rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
2478 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6179 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
2479 if (rc) { 6180 if (rc) {
2480 pci_disable_msi(phba->pcidev); 6181 pci_disable_msi(phba->pcidev);
@@ -2485,17 +6186,17 @@ lpfc_enable_msi(struct lpfc_hba *phba)
2485} 6186}
2486 6187
2487/** 6188/**
2488 * lpfc_disable_msi - Disable MSI interrupt mode 6189 * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
2489 * @phba: pointer to lpfc hba data structure. 6190 * @phba: pointer to lpfc hba data structure.
2490 * 6191 *
2491 * This routine is invoked to disable the MSI interrupt mode. The driver 6192 * This routine is invoked to disable the MSI interrupt mode to device with
2492 * calls free_irq() on MSI vector it has done request_irq() on before 6193 * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
2493 * calling pci_disable_msi(). Failure to do so results in a BUG_ON() and 6194 * done request_irq() on before calling pci_disable_msi(). Failure to do so
2494 * a device will be left with MSI enabled and leaks its vector. 6195 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6196 * its vector.
2495 */ 6197 */
2496
2497static void 6198static void
2498lpfc_disable_msi(struct lpfc_hba *phba) 6199lpfc_sli_disable_msi(struct lpfc_hba *phba)
2499{ 6200{
2500 free_irq(phba->pcidev->irq, phba); 6201 free_irq(phba->pcidev->irq, phba);
2501 pci_disable_msi(phba->pcidev); 6202 pci_disable_msi(phba->pcidev);
@@ -2503,80 +6204,298 @@ lpfc_disable_msi(struct lpfc_hba *phba)
2503} 6204}
2504 6205
2505/** 6206/**
2506 * lpfc_log_intr_mode - Log the active interrupt mode 6207 * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
2507 * @phba: pointer to lpfc hba data structure. 6208 * @phba: pointer to lpfc hba data structure.
2508 * @intr_mode: active interrupt mode adopted.
2509 * 6209 *
2510 * This routine it invoked to log the currently used active interrupt mode 6210 * This routine is invoked to enable device interrupt and associate driver's
2511 * to the device. 6211 * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
2512 */ 6212 * spec. Depends on the interrupt mode configured to the driver, the driver
6213 * will try to fallback from the configured interrupt mode to an interrupt
6214 * mode which is supported by the platform, kernel, and device in the order
6215 * of:
6216 * MSI-X -> MSI -> IRQ.
6217 *
6218 * Return codes
6219 * 0 - sucessful
6220 * other values - error
6221 **/
6222static uint32_t
6223lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6224{
6225 uint32_t intr_mode = LPFC_INTR_ERROR;
6226 int retval;
6227
6228 if (cfg_mode == 2) {
6229 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6230 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
6231 if (!retval) {
6232 /* Now, try to enable MSI-X interrupt mode */
6233 retval = lpfc_sli_enable_msix(phba);
6234 if (!retval) {
6235 /* Indicate initialization to MSI-X mode */
6236 phba->intr_type = MSIX;
6237 intr_mode = 2;
6238 }
6239 }
6240 }
6241
6242 /* Fallback to MSI if MSI-X initialization failed */
6243 if (cfg_mode >= 1 && phba->intr_type == NONE) {
6244 retval = lpfc_sli_enable_msi(phba);
6245 if (!retval) {
6246 /* Indicate initialization to MSI mode */
6247 phba->intr_type = MSI;
6248 intr_mode = 1;
6249 }
6250 }
6251
6252 /* Fallback to INTx if both MSI-X/MSI initalization failed */
6253 if (phba->intr_type == NONE) {
6254 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6255 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6256 if (!retval) {
6257 /* Indicate initialization to INTx mode */
6258 phba->intr_type = INTx;
6259 intr_mode = 0;
6260 }
6261 }
6262 return intr_mode;
6263}
6264
6265/**
6266 * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6267 * @phba: pointer to lpfc hba data structure.
6268 *
6269 * This routine is invoked to disable device interrupt and disassociate the
6270 * driver's interrupt handler(s) from interrupt vector(s) to device with
6271 * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6272 * release the interrupt vector(s) for the message signaled interrupt.
6273 **/
2513static void 6274static void
2514lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) 6275lpfc_sli_disable_intr(struct lpfc_hba *phba)
2515{ 6276{
2516 switch (intr_mode) { 6277 /* Disable the currently initialized interrupt mode */
2517 case 0: 6278 if (phba->intr_type == MSIX)
2518 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6279 lpfc_sli_disable_msix(phba);
2519 "0470 Enable INTx interrupt mode.\n"); 6280 else if (phba->intr_type == MSI)
2520 break; 6281 lpfc_sli_disable_msi(phba);
2521 case 1: 6282 else if (phba->intr_type == INTx)
6283 free_irq(phba->pcidev->irq, phba);
6284
6285 /* Reset interrupt management states */
6286 phba->intr_type = NONE;
6287 phba->sli.slistat.sli_intr = 0;
6288
6289 return;
6290}
6291
6292/**
6293 * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6294 * @phba: pointer to lpfc hba data structure.
6295 *
6296 * This routine is invoked to enable the MSI-X interrupt vectors to device
6297 * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6298 * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6299 * enables either all or nothing, depending on the current availability of
6300 * PCI vector resources. The device driver is responsible for calling the
6301 * individual request_irq() to register each MSI-X vector with a interrupt
6302 * handler, which is done in this function. Note that later when device is
6303 * unloading, the driver should always call free_irq() on all MSI-X vectors
6304 * it has done request_irq() on before calling pci_disable_msix(). Failure
6305 * to do so results in a BUG_ON() and a device will be left with MSI-X
6306 * enabled and leaks its vectors.
6307 *
6308 * Return codes
6309 * 0 - sucessful
6310 * other values - error
6311 **/
6312static int
6313lpfc_sli4_enable_msix(struct lpfc_hba *phba)
6314{
6315 int rc, index;
6316
6317 /* Set up MSI-X multi-message vectors */
6318 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6319 phba->sli4_hba.msix_entries[index].entry = index;
6320
6321 /* Configure MSI-X capability structure */
6322 rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
6323 phba->sli4_hba.cfg_eqn);
6324 if (rc) {
2522 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6325 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2523 "0481 Enabled MSI interrupt mode.\n"); 6326 "0484 PCI enable MSI-X failed (%d)\n", rc);
2524 break; 6327 goto msi_fail_out;
2525 case 2: 6328 }
6329 /* Log MSI-X vector assignment */
6330 for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
2526 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6331 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2527 "0480 Enabled MSI-X interrupt mode.\n"); 6332 "0489 MSI-X entry[%d]: vector=x%x "
2528 break; 6333 "message=%d\n", index,
2529 default: 6334 phba->sli4_hba.msix_entries[index].vector,
2530 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6335 phba->sli4_hba.msix_entries[index].entry);
2531 "0482 Illegal interrupt mode.\n"); 6336 /*
2532 break; 6337 * Assign MSI-X vectors to interrupt handlers
6338 */
6339
6340 /* The first vector must associated to slow-path handler for MQ */
6341 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
6342 &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
6343 LPFC_SP_DRIVER_HANDLER_NAME, phba);
6344 if (rc) {
6345 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6346 "0485 MSI-X slow-path request_irq failed "
6347 "(%d)\n", rc);
6348 goto msi_fail_out;
2533 } 6349 }
2534 return; 6350
6351 /* The rest of the vector(s) are associated to fast-path handler(s) */
6352 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) {
6353 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
6354 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
6355 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
6356 &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
6357 LPFC_FP_DRIVER_HANDLER_NAME,
6358 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6359 if (rc) {
6360 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6361 "0486 MSI-X fast-path (%d) "
6362 "request_irq failed (%d)\n", index, rc);
6363 goto cfg_fail_out;
6364 }
6365 }
6366
6367 return rc;
6368
6369cfg_fail_out:
6370 /* free the irq already requested */
6371 for (--index; index >= 1; index--)
6372 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
6373 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6374
6375 /* free the irq already requested */
6376 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
6377
6378msi_fail_out:
6379 /* Unconfigure MSI-X capability structure */
6380 pci_disable_msix(phba->pcidev);
6381 return rc;
2535} 6382}
2536 6383
6384/**
6385 * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
6386 * @phba: pointer to lpfc hba data structure.
6387 *
6388 * This routine is invoked to release the MSI-X vectors and then disable the
6389 * MSI-X interrupt mode to device with SLI-4 interface spec.
6390 **/
2537static void 6391static void
2538lpfc_stop_port(struct lpfc_hba *phba) 6392lpfc_sli4_disable_msix(struct lpfc_hba *phba)
2539{ 6393{
2540 /* Clear all interrupt enable conditions */ 6394 int index;
2541 writel(0, phba->HCregaddr);
2542 readl(phba->HCregaddr); /* flush */
2543 /* Clear all pending interrupts */
2544 writel(0xffffffff, phba->HAregaddr);
2545 readl(phba->HAregaddr); /* flush */
2546 6395
2547 /* Reset some HBA SLI setup states */ 6396 /* Free up MSI-X multi-message vectors */
2548 lpfc_stop_phba_timers(phba); 6397 free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
2549 phba->pport->work_port_events = 0; 6398
6399 for (index = 1; index < phba->sli4_hba.cfg_eqn; index++)
6400 free_irq(phba->sli4_hba.msix_entries[index].vector,
6401 &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6402 /* Disable MSI-X */
6403 pci_disable_msix(phba->pcidev);
6404
6405 return;
6406}
6407
6408/**
6409 * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
6410 * @phba: pointer to lpfc hba data structure.
6411 *
6412 * This routine is invoked to enable the MSI interrupt mode to device with
6413 * SLI-4 interface spec. The kernel function pci_enable_msi() is called
6414 * to enable the MSI vector. The device driver is responsible for calling
6415 * the request_irq() to register MSI vector with a interrupt the handler,
6416 * which is done in this function.
6417 *
6418 * Return codes
6419 * 0 - sucessful
6420 * other values - error
6421 **/
6422static int
6423lpfc_sli4_enable_msi(struct lpfc_hba *phba)
6424{
6425 int rc, index;
6426
6427 rc = pci_enable_msi(phba->pcidev);
6428 if (!rc)
6429 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6430 "0487 PCI enable MSI mode success.\n");
6431 else {
6432 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6433 "0488 PCI enable MSI mode failed (%d)\n", rc);
6434 return rc;
6435 }
6436
6437 rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
6438 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6439 if (rc) {
6440 pci_disable_msi(phba->pcidev);
6441 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6442 "0490 MSI request_irq failed (%d)\n", rc);
6443 }
6444
6445 for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
6446 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
6447 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
6448 }
6449
6450 return rc;
6451}
2550 6452
6453/**
6454 * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
6455 * @phba: pointer to lpfc hba data structure.
6456 *
6457 * This routine is invoked to disable the MSI interrupt mode to device with
6458 * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
6459 * done request_irq() on before calling pci_disable_msi(). Failure to do so
6460 * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6461 * its vector.
6462 **/
6463static void
6464lpfc_sli4_disable_msi(struct lpfc_hba *phba)
6465{
6466 free_irq(phba->pcidev->irq, phba);
6467 pci_disable_msi(phba->pcidev);
2551 return; 6468 return;
2552} 6469}
2553 6470
2554/** 6471/**
2555 * lpfc_enable_intr - Enable device interrupt 6472 * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
2556 * @phba: pointer to lpfc hba data structure. 6473 * @phba: pointer to lpfc hba data structure.
2557 * 6474 *
2558 * This routine is invoked to enable device interrupt and associate driver's 6475 * This routine is invoked to enable device interrupt and associate driver's
2559 * interrupt handler(s) to interrupt vector(s). Depends on the interrupt 6476 * interrupt handler(s) to interrupt vector(s) to device with SLI-4
2560 * mode configured to the driver, the driver will try to fallback from the 6477 * interface spec. Depends on the interrupt mode configured to the driver,
2561 * configured interrupt mode to an interrupt mode which is supported by the 6478 * the driver will try to fallback from the configured interrupt mode to an
2562 * platform, kernel, and device in the order of: MSI-X -> MSI -> IRQ. 6479 * interrupt mode which is supported by the platform, kernel, and device in
6480 * the order of:
6481 * MSI-X -> MSI -> IRQ.
2563 * 6482 *
2564 * Return codes 6483 * Return codes
2565 * 0 - sucessful 6484 * 0 - sucessful
2566 * other values - error 6485 * other values - error
2567 **/ 6486 **/
2568static uint32_t 6487static uint32_t
2569lpfc_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) 6488lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
2570{ 6489{
2571 uint32_t intr_mode = LPFC_INTR_ERROR; 6490 uint32_t intr_mode = LPFC_INTR_ERROR;
2572 int retval; 6491 int retval, index;
2573 6492
2574 if (cfg_mode == 2) { 6493 if (cfg_mode == 2) {
2575 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ 6494 /* Preparation before conf_msi mbox cmd */
2576 retval = lpfc_sli_config_port(phba, 3); 6495 retval = 0;
2577 if (!retval) { 6496 if (!retval) {
2578 /* Now, try to enable MSI-X interrupt mode */ 6497 /* Now, try to enable MSI-X interrupt mode */
2579 retval = lpfc_enable_msix(phba); 6498 retval = lpfc_sli4_enable_msix(phba);
2580 if (!retval) { 6499 if (!retval) {
2581 /* Indicate initialization to MSI-X mode */ 6500 /* Indicate initialization to MSI-X mode */
2582 phba->intr_type = MSIX; 6501 phba->intr_type = MSIX;
@@ -2587,7 +6506,7 @@ lpfc_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
2587 6506
2588 /* Fallback to MSI if MSI-X initialization failed */ 6507 /* Fallback to MSI if MSI-X initialization failed */
2589 if (cfg_mode >= 1 && phba->intr_type == NONE) { 6508 if (cfg_mode >= 1 && phba->intr_type == NONE) {
2590 retval = lpfc_enable_msi(phba); 6509 retval = lpfc_sli4_enable_msi(phba);
2591 if (!retval) { 6510 if (!retval) {
2592 /* Indicate initialization to MSI mode */ 6511 /* Indicate initialization to MSI mode */
2593 phba->intr_type = MSI; 6512 phba->intr_type = MSI;
@@ -2597,34 +6516,39 @@ lpfc_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
2597 6516
2598 /* Fallback to INTx if both MSI-X/MSI initalization failed */ 6517 /* Fallback to INTx if both MSI-X/MSI initalization failed */
2599 if (phba->intr_type == NONE) { 6518 if (phba->intr_type == NONE) {
2600 retval = request_irq(phba->pcidev->irq, lpfc_intr_handler, 6519 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
2601 IRQF_SHARED, LPFC_DRIVER_NAME, phba); 6520 IRQF_SHARED, LPFC_DRIVER_NAME, phba);
2602 if (!retval) { 6521 if (!retval) {
2603 /* Indicate initialization to INTx mode */ 6522 /* Indicate initialization to INTx mode */
2604 phba->intr_type = INTx; 6523 phba->intr_type = INTx;
2605 intr_mode = 0; 6524 intr_mode = 0;
6525 for (index = 0; index < phba->cfg_fcp_eq_count;
6526 index++) {
6527 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
6528 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
6529 }
2606 } 6530 }
2607 } 6531 }
2608 return intr_mode; 6532 return intr_mode;
2609} 6533}
2610 6534
2611/** 6535/**
2612 * lpfc_disable_intr - Disable device interrupt 6536 * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
2613 * @phba: pointer to lpfc hba data structure. 6537 * @phba: pointer to lpfc hba data structure.
2614 * 6538 *
2615 * This routine is invoked to disable device interrupt and disassociate the 6539 * This routine is invoked to disable device interrupt and disassociate
2616 * driver's interrupt handler(s) from interrupt vector(s). Depending on the 6540 * the driver's interrupt handler(s) from interrupt vector(s) to device
2617 * interrupt mode, the driver will release the interrupt vector(s) for the 6541 * with SLI-4 interface spec. Depending on the interrupt mode, the driver
2618 * message signaled interrupt. 6542 * will release the interrupt vector(s) for the message signaled interrupt.
2619 **/ 6543 **/
2620static void 6544static void
2621lpfc_disable_intr(struct lpfc_hba *phba) 6545lpfc_sli4_disable_intr(struct lpfc_hba *phba)
2622{ 6546{
2623 /* Disable the currently initialized interrupt mode */ 6547 /* Disable the currently initialized interrupt mode */
2624 if (phba->intr_type == MSIX) 6548 if (phba->intr_type == MSIX)
2625 lpfc_disable_msix(phba); 6549 lpfc_sli4_disable_msix(phba);
2626 else if (phba->intr_type == MSI) 6550 else if (phba->intr_type == MSI)
2627 lpfc_disable_msi(phba); 6551 lpfc_sli4_disable_msi(phba);
2628 else if (phba->intr_type == INTx) 6552 else if (phba->intr_type == INTx)
2629 free_irq(phba->pcidev->irq, phba); 6553 free_irq(phba->pcidev->irq, phba);
2630 6554
@@ -2636,263 +6560,233 @@ lpfc_disable_intr(struct lpfc_hba *phba)
2636} 6560}
2637 6561
2638/** 6562/**
2639 * lpfc_pci_probe_one - lpfc PCI probe func to register device to PCI subsystem 6563 * lpfc_unset_hba - Unset SLI3 hba device initialization
2640 * @pdev: pointer to PCI device 6564 * @phba: pointer to lpfc hba data structure.
2641 * @pid: pointer to PCI device identifier
2642 *
2643 * This routine is to be registered to the kernel's PCI subsystem. When an
2644 * Emulex HBA is presented in PCI bus, the kernel PCI subsystem looks at
2645 * PCI device-specific information of the device and driver to see if the
2646 * driver state that it can support this kind of device. If the match is
2647 * successful, the driver core invokes this routine. If this routine
2648 * determines it can claim the HBA, it does all the initialization that it
2649 * needs to do to handle the HBA properly.
2650 * 6565 *
2651 * Return code 6566 * This routine is invoked to unset the HBA device initialization steps to
2652 * 0 - driver can claim the device 6567 * a device with SLI-3 interface spec.
2653 * negative value - driver can not claim the device
2654 **/ 6568 **/
2655static int __devinit 6569static void
2656lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) 6570lpfc_unset_hba(struct lpfc_hba *phba)
2657{ 6571{
2658 struct lpfc_vport *vport = NULL; 6572 struct lpfc_vport *vport = phba->pport;
2659 struct lpfc_hba *phba; 6573 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2660 struct lpfc_sli *psli;
2661 struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
2662 struct Scsi_Host *shost = NULL;
2663 void *ptr;
2664 unsigned long bar0map_len, bar2map_len;
2665 int error = -ENODEV, retval;
2666 int i, hbq_count;
2667 uint16_t iotag;
2668 uint32_t cfg_mode, intr_mode;
2669 int bars = pci_select_bars(pdev, IORESOURCE_MEM);
2670 struct lpfc_adapter_event_header adapter_event;
2671
2672 if (pci_enable_device_mem(pdev))
2673 goto out;
2674 if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
2675 goto out_disable_device;
2676 6574
2677 phba = kzalloc(sizeof (struct lpfc_hba), GFP_KERNEL); 6575 spin_lock_irq(shost->host_lock);
2678 if (!phba) 6576 vport->load_flag |= FC_UNLOADING;
2679 goto out_release_regions; 6577 spin_unlock_irq(shost->host_lock);
2680 6578
2681 atomic_set(&phba->fast_event_count, 0); 6579 lpfc_stop_hba_timers(phba);
2682 spin_lock_init(&phba->hbalock);
2683 6580
2684 /* Initialize ndlp management spinlock */ 6581 phba->pport->work_port_events = 0;
2685 spin_lock_init(&phba->ndlp_lock);
2686 6582
2687 phba->pcidev = pdev; 6583 lpfc_sli_hba_down(phba);
2688 6584
2689 /* Assign an unused board number */ 6585 lpfc_sli_brdrestart(phba);
2690 if ((phba->brd_no = lpfc_get_instance()) < 0)
2691 goto out_free_phba;
2692 6586
2693 INIT_LIST_HEAD(&phba->port_list); 6587 lpfc_sli_disable_intr(phba);
2694 init_waitqueue_head(&phba->wait_4_mlo_m_q);
2695 /*
2696 * Get all the module params for configuring this host and then
2697 * establish the host.
2698 */
2699 lpfc_get_cfgparam(phba);
2700 phba->max_vpi = LPFC_MAX_VPI;
2701 6588
2702 /* Initialize timers used by driver */ 6589 return;
2703 init_timer(&phba->hb_tmofunc); 6590}
2704 phba->hb_tmofunc.function = lpfc_hb_timeout;
2705 phba->hb_tmofunc.data = (unsigned long)phba;
2706 6591
2707 psli = &phba->sli; 6592/**
2708 init_timer(&psli->mbox_tmo); 6593 * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
2709 psli->mbox_tmo.function = lpfc_mbox_timeout; 6594 * @phba: pointer to lpfc hba data structure.
2710 psli->mbox_tmo.data = (unsigned long) phba; 6595 *
2711 init_timer(&phba->fcp_poll_timer); 6596 * This routine is invoked to unset the HBA device initialization steps to
2712 phba->fcp_poll_timer.function = lpfc_poll_timeout; 6597 * a device with SLI-4 interface spec.
2713 phba->fcp_poll_timer.data = (unsigned long) phba; 6598 **/
2714 init_timer(&phba->fabric_block_timer); 6599static void
2715 phba->fabric_block_timer.function = lpfc_fabric_block_timeout; 6600lpfc_sli4_unset_hba(struct lpfc_hba *phba)
2716 phba->fabric_block_timer.data = (unsigned long) phba; 6601{
2717 init_timer(&phba->eratt_poll); 6602 struct lpfc_vport *vport = phba->pport;
2718 phba->eratt_poll.function = lpfc_poll_eratt; 6603 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2719 phba->eratt_poll.data = (unsigned long) phba;
2720 6604
2721 pci_set_master(pdev); 6605 spin_lock_irq(shost->host_lock);
2722 pci_save_state(pdev); 6606 vport->load_flag |= FC_UNLOADING;
2723 pci_try_set_mwi(pdev); 6607 spin_unlock_irq(shost->host_lock);
2724 6608
2725 if (pci_set_dma_mask(phba->pcidev, DMA_BIT_MASK(64)) != 0) 6609 phba->pport->work_port_events = 0;
2726 if (pci_set_dma_mask(phba->pcidev, DMA_BIT_MASK(32)) != 0)
2727 goto out_idr_remove;
2728 6610
2729 /* 6611 lpfc_sli4_hba_down(phba);
2730 * Get the bus address of Bar0 and Bar2 and the number of bytes
2731 * required by each mapping.
2732 */
2733 phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0);
2734 bar0map_len = pci_resource_len(phba->pcidev, 0);
2735 6612
2736 phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2); 6613 lpfc_sli4_disable_intr(phba);
2737 bar2map_len = pci_resource_len(phba->pcidev, 2);
2738 6614
2739 /* Map HBA SLIM to a kernel virtual address. */ 6615 return;
2740 phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); 6616}
2741 if (!phba->slim_memmap_p) {
2742 error = -ENODEV;
2743 dev_printk(KERN_ERR, &pdev->dev,
2744 "ioremap failed for SLIM memory.\n");
2745 goto out_idr_remove;
2746 }
2747
2748 /* Map HBA Control Registers to a kernel virtual address. */
2749 phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
2750 if (!phba->ctrl_regs_memmap_p) {
2751 error = -ENODEV;
2752 dev_printk(KERN_ERR, &pdev->dev,
2753 "ioremap failed for HBA control registers.\n");
2754 goto out_iounmap_slim;
2755 }
2756 6617
2757 /* Allocate memory for SLI-2 structures */ 6618/**
2758 phba->slim2p.virt = dma_alloc_coherent(&phba->pcidev->dev, 6619 * lpfc_sli4_hba_unset - Unset the fcoe hba
2759 SLI2_SLIM_SIZE, 6620 * @phba: Pointer to HBA context object.
2760 &phba->slim2p.phys, 6621 *
2761 GFP_KERNEL); 6622 * This function is called in the SLI4 code path to reset the HBA's FCoE
2762 if (!phba->slim2p.virt) 6623 * function. The caller is not required to hold any lock. This routine
2763 goto out_iounmap; 6624 * issues PCI function reset mailbox command to reset the FCoE function.
6625 * At the end of the function, it calls lpfc_hba_down_post function to
6626 * free any pending commands.
6627 **/
6628static void
6629lpfc_sli4_hba_unset(struct lpfc_hba *phba)
6630{
6631 int wait_cnt = 0;
6632 LPFC_MBOXQ_t *mboxq;
2764 6633
2765 memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE); 6634 lpfc_stop_hba_timers(phba);
2766 phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); 6635 phba->sli4_hba.intr_enable = 0;
2767 phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
2768 phba->IOCBs = (phba->slim2p.virt +
2769 offsetof(struct lpfc_sli2_slim, IOCBs));
2770 6636
2771 phba->hbqslimp.virt = dma_alloc_coherent(&phba->pcidev->dev, 6637 /*
2772 lpfc_sli_hbq_size(), 6638 * Gracefully wait out the potential current outstanding asynchronous
2773 &phba->hbqslimp.phys, 6639 * mailbox command.
2774 GFP_KERNEL); 6640 */
2775 if (!phba->hbqslimp.virt)
2776 goto out_free_slim;
2777 6641
2778 hbq_count = lpfc_sli_hbq_count(); 6642 /* First, block any pending async mailbox command from posted */
2779 ptr = phba->hbqslimp.virt; 6643 spin_lock_irq(&phba->hbalock);
2780 for (i = 0; i < hbq_count; ++i) { 6644 phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
2781 phba->hbqs[i].hbq_virt = ptr; 6645 spin_unlock_irq(&phba->hbalock);
2782 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); 6646 /* Now, trying to wait it out if we can */
2783 ptr += (lpfc_hbq_defs[i]->entry_count * 6647 while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
2784 sizeof(struct lpfc_hbq_entry)); 6648 msleep(10);
6649 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
6650 break;
2785 } 6651 }
2786 phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; 6652 /* Forcefully release the outstanding mailbox command if timed out */
2787 phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; 6653 if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
2788 6654 spin_lock_irq(&phba->hbalock);
2789 memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); 6655 mboxq = phba->sli.mbox_active;
2790 6656 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
2791 INIT_LIST_HEAD(&phba->hbqbuf_in_list); 6657 __lpfc_mbox_cmpl_put(phba, mboxq);
2792 6658 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
2793 /* Initialize the SLI Layer to run with lpfc HBAs. */ 6659 phba->sli.mbox_active = NULL;
2794 lpfc_sli_setup(phba); 6660 spin_unlock_irq(&phba->hbalock);
2795 lpfc_sli_queue_setup(phba);
2796
2797 retval = lpfc_mem_alloc(phba);
2798 if (retval) {
2799 error = retval;
2800 goto out_free_hbqslimp;
2801 } 6661 }
2802 6662
2803 /* Initialize and populate the iocb list per host. */ 6663 /* Tear down the queues in the HBA */
2804 INIT_LIST_HEAD(&phba->lpfc_iocb_list); 6664 lpfc_sli4_queue_unset(phba);
2805 for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) {
2806 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
2807 if (iocbq_entry == NULL) {
2808 printk(KERN_ERR "%s: only allocated %d iocbs of "
2809 "expected %d count. Unloading driver.\n",
2810 __func__, i, LPFC_IOCB_LIST_CNT);
2811 error = -ENOMEM;
2812 goto out_free_iocbq;
2813 }
2814 6665
2815 iotag = lpfc_sli_next_iotag(phba, iocbq_entry); 6666 /* Disable PCI subsystem interrupt */
2816 if (iotag == 0) { 6667 lpfc_sli4_disable_intr(phba);
2817 kfree (iocbq_entry);
2818 printk(KERN_ERR "%s: failed to allocate IOTAG. "
2819 "Unloading driver.\n",
2820 __func__);
2821 error = -ENOMEM;
2822 goto out_free_iocbq;
2823 }
2824 6668
2825 spin_lock_irq(&phba->hbalock); 6669 /* Stop kthread signal shall trigger work_done one more time */
2826 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); 6670 kthread_stop(phba->worker_thread);
2827 phba->total_iocbq_bufs++;
2828 spin_unlock_irq(&phba->hbalock);
2829 }
2830 6671
2831 /* Initialize HBA structure */ 6672 /* Stop the SLI4 device port */
2832 phba->fc_edtov = FF_DEF_EDTOV; 6673 phba->pport->work_port_events = 0;
2833 phba->fc_ratov = FF_DEF_RATOV; 6674}
2834 phba->fc_altov = FF_DEF_ALTOV;
2835 phba->fc_arbtov = FF_DEF_ARBTOV;
2836 6675
2837 INIT_LIST_HEAD(&phba->work_list); 6676/**
2838 phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); 6677 * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
2839 phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); 6678 * @pdev: pointer to PCI device
6679 * @pid: pointer to PCI device identifier
6680 *
6681 * This routine is to be called to attach a device with SLI-3 interface spec
6682 * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
6683 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
6684 * information of the device and driver to see if the driver state that it can
6685 * support this kind of device. If the match is successful, the driver core
6686 * invokes this routine. If this routine determines it can claim the HBA, it
6687 * does all the initialization that it needs to do to handle the HBA properly.
6688 *
6689 * Return code
6690 * 0 - driver can claim the device
6691 * negative value - driver can not claim the device
6692 **/
6693static int __devinit
6694lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
6695{
6696 struct lpfc_hba *phba;
6697 struct lpfc_vport *vport = NULL;
6698 int error;
6699 uint32_t cfg_mode, intr_mode;
2840 6700
2841 /* Initialize the wait queue head for the kernel thread */ 6701 /* Allocate memory for HBA structure */
2842 init_waitqueue_head(&phba->work_waitq); 6702 phba = lpfc_hba_alloc(pdev);
6703 if (!phba)
6704 return -ENOMEM;
2843 6705
2844 /* Startup the kernel thread for this host adapter. */ 6706 /* Perform generic PCI device enabling operation */
2845 phba->worker_thread = kthread_run(lpfc_do_work, phba, 6707 error = lpfc_enable_pci_dev(phba);
2846 "lpfc_worker_%d", phba->brd_no); 6708 if (error) {
2847 if (IS_ERR(phba->worker_thread)) { 6709 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2848 error = PTR_ERR(phba->worker_thread); 6710 "1401 Failed to enable pci device.\n");
2849 goto out_free_iocbq; 6711 goto out_free_phba;
2850 } 6712 }
2851 6713
2852 /* Initialize the list of scsi buffers used by driver for scsi IO. */ 6714 /* Set up SLI API function jump table for PCI-device group-0 HBAs */
2853 spin_lock_init(&phba->scsi_buf_list_lock); 6715 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
2854 INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list); 6716 if (error)
6717 goto out_disable_pci_dev;
2855 6718
2856 /* Initialize list of fabric iocbs */ 6719 /* Set up SLI-3 specific device PCI memory space */
2857 INIT_LIST_HEAD(&phba->fabric_iocb_list); 6720 error = lpfc_sli_pci_mem_setup(phba);
6721 if (error) {
6722 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6723 "1402 Failed to set up pci memory space.\n");
6724 goto out_disable_pci_dev;
6725 }
2858 6726
2859 /* Initialize list to save ELS buffers */ 6727 /* Set up phase-1 common device driver resources */
2860 INIT_LIST_HEAD(&phba->elsbuf); 6728 error = lpfc_setup_driver_resource_phase1(phba);
6729 if (error) {
6730 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6731 "1403 Failed to set up driver resource.\n");
6732 goto out_unset_pci_mem_s3;
6733 }
2861 6734
2862 vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); 6735 /* Set up SLI-3 specific device driver resources */
2863 if (!vport) 6736 error = lpfc_sli_driver_resource_setup(phba);
2864 goto out_kthread_stop; 6737 if (error) {
6738 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6739 "1404 Failed to set up driver resource.\n");
6740 goto out_unset_pci_mem_s3;
6741 }
2865 6742
2866 shost = lpfc_shost_from_vport(vport); 6743 /* Initialize and populate the iocb list per host */
2867 phba->pport = vport; 6744 error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
2868 lpfc_debugfs_initialize(vport); 6745 if (error) {
6746 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6747 "1405 Failed to initialize iocb list.\n");
6748 goto out_unset_driver_resource_s3;
6749 }
2869 6750
2870 pci_set_drvdata(pdev, shost); 6751 /* Set up common device driver resources */
6752 error = lpfc_setup_driver_resource_phase2(phba);
6753 if (error) {
6754 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6755 "1406 Failed to set up driver resource.\n");
6756 goto out_free_iocb_list;
6757 }
2871 6758
2872 phba->MBslimaddr = phba->slim_memmap_p; 6759 /* Create SCSI host to the physical port */
2873 phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; 6760 error = lpfc_create_shost(phba);
2874 phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; 6761 if (error) {
2875 phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; 6762 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2876 phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; 6763 "1407 Failed to create scsi host.\n");
6764 goto out_unset_driver_resource;
6765 }
2877 6766
2878 /* Configure sysfs attributes */ 6767 /* Configure sysfs attributes */
2879 if (lpfc_alloc_sysfs_attr(vport)) { 6768 vport = phba->pport;
6769 error = lpfc_alloc_sysfs_attr(vport);
6770 if (error) {
2880 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6771 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2881 "1476 Failed to allocate sysfs attr\n"); 6772 "1476 Failed to allocate sysfs attr\n");
2882 error = -ENOMEM; 6773 goto out_destroy_shost;
2883 goto out_destroy_port;
2884 } 6774 }
2885 6775
6776 /* Now, trying to enable interrupt and bring up the device */
2886 cfg_mode = phba->cfg_use_msi; 6777 cfg_mode = phba->cfg_use_msi;
2887 while (true) { 6778 while (true) {
6779 /* Put device to a known state before enabling interrupt */
6780 lpfc_stop_port(phba);
2888 /* Configure and enable interrupt */ 6781 /* Configure and enable interrupt */
2889 intr_mode = lpfc_enable_intr(phba, cfg_mode); 6782 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
2890 if (intr_mode == LPFC_INTR_ERROR) { 6783 if (intr_mode == LPFC_INTR_ERROR) {
2891 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6784 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2892 "0426 Failed to enable interrupt.\n"); 6785 "0431 Failed to enable interrupt.\n");
6786 error = -ENODEV;
2893 goto out_free_sysfs_attr; 6787 goto out_free_sysfs_attr;
2894 } 6788 }
2895 /* HBA SLI setup */ 6789 /* SLI-3 HBA setup */
2896 if (lpfc_sli_hba_setup(phba)) { 6790 if (lpfc_sli_hba_setup(phba)) {
2897 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 6791 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2898 "1477 Failed to set up hba\n"); 6792 "1477 Failed to set up hba\n");
@@ -2902,185 +6796,65 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
2902 6796
2903 /* Wait 50ms for the interrupts of previous mailbox commands */ 6797 /* Wait 50ms for the interrupts of previous mailbox commands */
2904 msleep(50); 6798 msleep(50);
2905 /* Check active interrupts received */ 6799 /* Check active interrupts on message signaled interrupts */
2906 if (phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { 6800 if (intr_mode == 0 ||
6801 phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
2907 /* Log the current active interrupt mode */ 6802 /* Log the current active interrupt mode */
2908 phba->intr_mode = intr_mode; 6803 phba->intr_mode = intr_mode;
2909 lpfc_log_intr_mode(phba, intr_mode); 6804 lpfc_log_intr_mode(phba, intr_mode);
2910 break; 6805 break;
2911 } else { 6806 } else {
2912 lpfc_printf_log(phba, KERN_INFO, LOG_INIT, 6807 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2913 "0451 Configure interrupt mode (%d) " 6808 "0447 Configure interrupt mode (%d) "
2914 "failed active interrupt test.\n", 6809 "failed active interrupt test.\n",
2915 intr_mode); 6810 intr_mode);
2916 if (intr_mode == 0) {
2917 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2918 "0479 Failed to enable "
2919 "interrupt.\n");
2920 error = -ENODEV;
2921 goto out_remove_device;
2922 }
2923 /* Stop HBA SLI setups */
2924 lpfc_stop_port(phba);
2925 /* Disable the current interrupt mode */ 6811 /* Disable the current interrupt mode */
2926 lpfc_disable_intr(phba); 6812 lpfc_sli_disable_intr(phba);
2927 /* Try next level of interrupt mode */ 6813 /* Try next level of interrupt mode */
2928 cfg_mode = --intr_mode; 6814 cfg_mode = --intr_mode;
2929 } 6815 }
2930 } 6816 }
2931 6817
2932 /* 6818 /* Perform post initialization setup */
2933 * hba setup may have changed the hba_queue_depth so we need to adjust 6819 lpfc_post_init_setup(phba);
2934 * the value of can_queue.
2935 */
2936 shost->can_queue = phba->cfg_hba_queue_depth - 10;
2937 if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
2938
2939 if (lpfc_prot_mask && lpfc_prot_guard) {
2940 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2941 "1478 Registering BlockGuard with the "
2942 "SCSI layer\n");
2943 6820
2944 scsi_host_set_prot(shost, lpfc_prot_mask); 6821 /* Check if there are static vports to be created. */
2945 scsi_host_set_guard(shost, lpfc_prot_guard); 6822 lpfc_create_static_vport(phba);
2946 }
2947 }
2948
2949 if (!_dump_buf_data) {
2950 int pagecnt = 10;
2951 while (pagecnt) {
2952 spin_lock_init(&_dump_buf_lock);
2953 _dump_buf_data =
2954 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
2955 if (_dump_buf_data) {
2956 printk(KERN_ERR "BLKGRD allocated %d pages for "
2957 "_dump_buf_data at 0x%p\n",
2958 (1 << pagecnt), _dump_buf_data);
2959 _dump_buf_data_order = pagecnt;
2960 memset(_dump_buf_data, 0, ((1 << PAGE_SHIFT)
2961 << pagecnt));
2962 break;
2963 } else {
2964 --pagecnt;
2965 }
2966
2967 }
2968
2969 if (!_dump_buf_data_order)
2970 printk(KERN_ERR "BLKGRD ERROR unable to allocate "
2971 "memory for hexdump\n");
2972
2973 } else {
2974 printk(KERN_ERR "BLKGRD already allocated _dump_buf_data=0x%p"
2975 "\n", _dump_buf_data);
2976 }
2977
2978
2979 if (!_dump_buf_dif) {
2980 int pagecnt = 10;
2981 while (pagecnt) {
2982 _dump_buf_dif =
2983 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
2984 if (_dump_buf_dif) {
2985 printk(KERN_ERR "BLKGRD allocated %d pages for "
2986 "_dump_buf_dif at 0x%p\n",
2987 (1 << pagecnt), _dump_buf_dif);
2988 _dump_buf_dif_order = pagecnt;
2989 memset(_dump_buf_dif, 0, ((1 << PAGE_SHIFT)
2990 << pagecnt));
2991 break;
2992 } else {
2993 --pagecnt;
2994 }
2995
2996 }
2997
2998 if (!_dump_buf_dif_order)
2999 printk(KERN_ERR "BLKGRD ERROR unable to allocate "
3000 "memory for hexdump\n");
3001
3002 } else {
3003 printk(KERN_ERR "BLKGRD already allocated _dump_buf_dif=0x%p\n",
3004 _dump_buf_dif);
3005 }
3006
3007 lpfc_host_attrib_init(shost);
3008
3009 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
3010 spin_lock_irq(shost->host_lock);
3011 lpfc_poll_start_timer(phba);
3012 spin_unlock_irq(shost->host_lock);
3013 }
3014
3015 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3016 "0428 Perform SCSI scan\n");
3017 /* Send board arrival event to upper layer */
3018 adapter_event.event_type = FC_REG_ADAPTER_EVENT;
3019 adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
3020 fc_host_post_vendor_event(shost, fc_get_event_number(),
3021 sizeof(adapter_event),
3022 (char *) &adapter_event,
3023 LPFC_NL_VENDOR_ID);
3024 6823
3025 return 0; 6824 return 0;
3026 6825
3027out_remove_device: 6826out_remove_device:
3028 spin_lock_irq(shost->host_lock); 6827 lpfc_unset_hba(phba);
3029 vport->load_flag |= FC_UNLOADING;
3030 spin_unlock_irq(shost->host_lock);
3031 lpfc_stop_phba_timers(phba);
3032 phba->pport->work_port_events = 0;
3033 lpfc_disable_intr(phba);
3034 lpfc_sli_hba_down(phba);
3035 lpfc_sli_brdrestart(phba);
3036out_free_sysfs_attr: 6828out_free_sysfs_attr:
3037 lpfc_free_sysfs_attr(vport); 6829 lpfc_free_sysfs_attr(vport);
3038out_destroy_port: 6830out_destroy_shost:
3039 destroy_port(vport); 6831 lpfc_destroy_shost(phba);
3040out_kthread_stop: 6832out_unset_driver_resource:
3041 kthread_stop(phba->worker_thread); 6833 lpfc_unset_driver_resource_phase2(phba);
3042out_free_iocbq: 6834out_free_iocb_list:
3043 list_for_each_entry_safe(iocbq_entry, iocbq_next, 6835 lpfc_free_iocb_list(phba);
3044 &phba->lpfc_iocb_list, list) { 6836out_unset_driver_resource_s3:
3045 kfree(iocbq_entry); 6837 lpfc_sli_driver_resource_unset(phba);
3046 phba->total_iocbq_bufs--; 6838out_unset_pci_mem_s3:
3047 } 6839 lpfc_sli_pci_mem_unset(phba);
3048 lpfc_mem_free(phba); 6840out_disable_pci_dev:
3049out_free_hbqslimp: 6841 lpfc_disable_pci_dev(phba);
3050 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
3051 phba->hbqslimp.virt, phba->hbqslimp.phys);
3052out_free_slim:
3053 dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
3054 phba->slim2p.virt, phba->slim2p.phys);
3055out_iounmap:
3056 iounmap(phba->ctrl_regs_memmap_p);
3057out_iounmap_slim:
3058 iounmap(phba->slim_memmap_p);
3059out_idr_remove:
3060 idr_remove(&lpfc_hba_index, phba->brd_no);
3061out_free_phba: 6842out_free_phba:
3062 kfree(phba); 6843 lpfc_hba_free(phba);
3063out_release_regions:
3064 pci_release_selected_regions(pdev, bars);
3065out_disable_device:
3066 pci_disable_device(pdev);
3067out:
3068 pci_set_drvdata(pdev, NULL);
3069 if (shost)
3070 scsi_host_put(shost);
3071 return error; 6844 return error;
3072} 6845}
3073 6846
3074/** 6847/**
3075 * lpfc_pci_remove_one - lpfc PCI func to unregister device from PCI subsystem 6848 * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
3076 * @pdev: pointer to PCI device 6849 * @pdev: pointer to PCI device
3077 * 6850 *
3078 * This routine is to be registered to the kernel's PCI subsystem. When an 6851 * This routine is to be called to disattach a device with SLI-3 interface
3079 * Emulex HBA is removed from PCI bus, it performs all the necessary cleanup 6852 * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
3080 * for the HBA device to be removed from the PCI subsystem properly. 6853 * removed from PCI bus, it performs all the necessary cleanup for the HBA
6854 * device to be removed from the PCI subsystem properly.
3081 **/ 6855 **/
3082static void __devexit 6856static void __devexit
3083lpfc_pci_remove_one(struct pci_dev *pdev) 6857lpfc_pci_remove_one_s3(struct pci_dev *pdev)
3084{ 6858{
3085 struct Scsi_Host *shost = pci_get_drvdata(pdev); 6859 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3086 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; 6860 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
@@ -3098,7 +6872,7 @@ lpfc_pci_remove_one(struct pci_dev *pdev)
3098 /* Release all the vports against this physical port */ 6872 /* Release all the vports against this physical port */
3099 vports = lpfc_create_vport_work_array(phba); 6873 vports = lpfc_create_vport_work_array(phba);
3100 if (vports != NULL) 6874 if (vports != NULL)
3101 for (i = 1; i <= phba->max_vpi && vports[i] != NULL; i++) 6875 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
3102 fc_vport_terminate(vports[i]->fc_vport); 6876 fc_vport_terminate(vports[i]->fc_vport);
3103 lpfc_destroy_vport_work_array(phba, vports); 6877 lpfc_destroy_vport_work_array(phba, vports);
3104 6878
@@ -3120,7 +6894,7 @@ lpfc_pci_remove_one(struct pci_dev *pdev)
3120 /* Final cleanup of txcmplq and reset the HBA */ 6894 /* Final cleanup of txcmplq and reset the HBA */
3121 lpfc_sli_brdrestart(phba); 6895 lpfc_sli_brdrestart(phba);
3122 6896
3123 lpfc_stop_phba_timers(phba); 6897 lpfc_stop_hba_timers(phba);
3124 spin_lock_irq(&phba->hbalock); 6898 spin_lock_irq(&phba->hbalock);
3125 list_del_init(&vport->listentry); 6899 list_del_init(&vport->listentry);
3126 spin_unlock_irq(&phba->hbalock); 6900 spin_unlock_irq(&phba->hbalock);
@@ -3128,7 +6902,7 @@ lpfc_pci_remove_one(struct pci_dev *pdev)
3128 lpfc_debugfs_terminate(vport); 6902 lpfc_debugfs_terminate(vport);
3129 6903
3130 /* Disable interrupt */ 6904 /* Disable interrupt */
3131 lpfc_disable_intr(phba); 6905 lpfc_sli_disable_intr(phba);
3132 6906
3133 pci_set_drvdata(pdev, NULL); 6907 pci_set_drvdata(pdev, NULL);
3134 scsi_host_put(shost); 6908 scsi_host_put(shost);
@@ -3138,7 +6912,7 @@ lpfc_pci_remove_one(struct pci_dev *pdev)
3138 * corresponding pools here. 6912 * corresponding pools here.
3139 */ 6913 */
3140 lpfc_scsi_free(phba); 6914 lpfc_scsi_free(phba);
3141 lpfc_mem_free(phba); 6915 lpfc_mem_free_all(phba);
3142 6916
3143 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), 6917 dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
3144 phba->hbqslimp.virt, phba->hbqslimp.phys); 6918 phba->hbqslimp.virt, phba->hbqslimp.phys);
@@ -3151,36 +6925,35 @@ lpfc_pci_remove_one(struct pci_dev *pdev)
3151 iounmap(phba->ctrl_regs_memmap_p); 6925 iounmap(phba->ctrl_regs_memmap_p);
3152 iounmap(phba->slim_memmap_p); 6926 iounmap(phba->slim_memmap_p);
3153 6927
3154 idr_remove(&lpfc_hba_index, phba->brd_no); 6928 lpfc_hba_free(phba);
3155
3156 kfree(phba);
3157 6929
3158 pci_release_selected_regions(pdev, bars); 6930 pci_release_selected_regions(pdev, bars);
3159 pci_disable_device(pdev); 6931 pci_disable_device(pdev);
3160} 6932}
3161 6933
3162/** 6934/**
3163 * lpfc_pci_suspend_one - lpfc PCI func to suspend device for power management 6935 * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
3164 * @pdev: pointer to PCI device 6936 * @pdev: pointer to PCI device
3165 * @msg: power management message 6937 * @msg: power management message
3166 * 6938 *
3167 * This routine is to be registered to the kernel's PCI subsystem to support 6939 * This routine is to be called from the kernel's PCI subsystem to support
3168 * system Power Management (PM). When PM invokes this method, it quiesces the 6940 * system Power Management (PM) to device with SLI-3 interface spec. When
3169 * device by stopping the driver's worker thread for the device, turning off 6941 * PM invokes this method, it quiesces the device by stopping the driver's
3170 * device's interrupt and DMA, and bring the device offline. Note that as the 6942 * worker thread for the device, turning off device's interrupt and DMA,
3171 * driver implements the minimum PM requirements to a power-aware driver's PM 6943 * and bring the device offline. Note that as the driver implements the
3172 * support for suspend/resume -- all the possible PM messages (SUSPEND, 6944 * minimum PM requirements to a power-aware driver's PM support for the
3173 * HIBERNATE, FREEZE) to the suspend() method call will be treated as SUSPEND 6945 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
3174 * and the driver will fully reinitialize its device during resume() method 6946 * to the suspend() method call will be treated as SUSPEND and the driver will
3175 * call, the driver will set device to PCI_D3hot state in PCI config space 6947 * fully reinitialize its device during resume() method call, the driver will
3176 * instead of setting it according to the @msg provided by the PM. 6948 * set device to PCI_D3hot state in PCI config space instead of setting it
6949 * according to the @msg provided by the PM.
3177 * 6950 *
3178 * Return code 6951 * Return code
3179 * 0 - driver suspended the device 6952 * 0 - driver suspended the device
3180 * Error otherwise 6953 * Error otherwise
3181 **/ 6954 **/
3182static int 6955static int
3183lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) 6956lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
3184{ 6957{
3185 struct Scsi_Host *shost = pci_get_drvdata(pdev); 6958 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3186 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 6959 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
@@ -3194,7 +6967,7 @@ lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
3194 kthread_stop(phba->worker_thread); 6967 kthread_stop(phba->worker_thread);
3195 6968
3196 /* Disable interrupt from device */ 6969 /* Disable interrupt from device */
3197 lpfc_disable_intr(phba); 6970 lpfc_sli_disable_intr(phba);
3198 6971
3199 /* Save device state to PCI config space */ 6972 /* Save device state to PCI config space */
3200 pci_save_state(pdev); 6973 pci_save_state(pdev);
@@ -3204,25 +6977,26 @@ lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
3204} 6977}
3205 6978
3206/** 6979/**
3207 * lpfc_pci_resume_one - lpfc PCI func to resume device for power management 6980 * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
3208 * @pdev: pointer to PCI device 6981 * @pdev: pointer to PCI device
3209 * 6982 *
3210 * This routine is to be registered to the kernel's PCI subsystem to support 6983 * This routine is to be called from the kernel's PCI subsystem to support
3211 * system Power Management (PM). When PM invokes this method, it restores 6984 * system Power Management (PM) to device with SLI-3 interface spec. When PM
3212 * the device's PCI config space state and fully reinitializes the device 6985 * invokes this method, it restores the device's PCI config space state and
3213 * and brings it online. Note that as the driver implements the minimum PM 6986 * fully reinitializes the device and brings it online. Note that as the
3214 * requirements to a power-aware driver's PM for suspend/resume -- all 6987 * driver implements the minimum PM requirements to a power-aware driver's
3215 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() 6988 * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
3216 * method call will be treated as SUSPEND and the driver will fully 6989 * FREEZE) to the suspend() method call will be treated as SUSPEND and the
3217 * reinitialize its device during resume() method call, the device will be 6990 * driver will fully reinitialize its device during resume() method call,
3218 * set to PCI_D0 directly in PCI config space before restoring the state. 6991 * the device will be set to PCI_D0 directly in PCI config space before
6992 * restoring the state.
3219 * 6993 *
3220 * Return code 6994 * Return code
3221 * 0 - driver suspended the device 6995 * 0 - driver suspended the device
3222 * Error otherwise 6996 * Error otherwise
3223 **/ 6997 **/
3224static int 6998static int
3225lpfc_pci_resume_one(struct pci_dev *pdev) 6999lpfc_pci_resume_one_s3(struct pci_dev *pdev)
3226{ 7000{
3227 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7001 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3228 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7002 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
@@ -3250,7 +7024,7 @@ lpfc_pci_resume_one(struct pci_dev *pdev)
3250 } 7024 }
3251 7025
3252 /* Configure and enable interrupt */ 7026 /* Configure and enable interrupt */
3253 intr_mode = lpfc_enable_intr(phba, phba->intr_mode); 7027 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
3254 if (intr_mode == LPFC_INTR_ERROR) { 7028 if (intr_mode == LPFC_INTR_ERROR) {
3255 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7029 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3256 "0430 PM resume Failed to enable interrupt\n"); 7030 "0430 PM resume Failed to enable interrupt\n");
@@ -3269,23 +7043,24 @@ lpfc_pci_resume_one(struct pci_dev *pdev)
3269} 7043}
3270 7044
3271/** 7045/**
3272 * lpfc_io_error_detected - Driver method for handling PCI I/O error detected 7046 * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
3273 * @pdev: pointer to PCI device. 7047 * @pdev: pointer to PCI device.
3274 * @state: the current PCI connection state. 7048 * @state: the current PCI connection state.
3275 * 7049 *
3276 * This routine is registered to the PCI subsystem for error handling. This 7050 * This routine is called from the PCI subsystem for I/O error handling to
3277 * function is called by the PCI subsystem after a PCI bus error affecting 7051 * device with SLI-3 interface spec. This function is called by the PCI
3278 * this device has been detected. When this function is invoked, it will 7052 * subsystem after a PCI bus error affecting this device has been detected.
3279 * need to stop all the I/Os and interrupt(s) to the device. Once that is 7053 * When this function is invoked, it will need to stop all the I/Os and
3280 * done, it will return PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to 7054 * interrupt(s) to the device. Once that is done, it will return
3281 * perform proper recovery as desired. 7055 * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7056 * as desired.
3282 * 7057 *
3283 * Return codes 7058 * Return codes
3284 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery 7059 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
3285 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7060 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
3286 **/ 7061 **/
3287static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev, 7062static pci_ers_result_t
3288 pci_channel_state_t state) 7063lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
3289{ 7064{
3290 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7065 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3291 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7066 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
@@ -3312,30 +7087,32 @@ static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
3312 lpfc_sli_abort_iocb_ring(phba, pring); 7087 lpfc_sli_abort_iocb_ring(phba, pring);
3313 7088
3314 /* Disable interrupt */ 7089 /* Disable interrupt */
3315 lpfc_disable_intr(phba); 7090 lpfc_sli_disable_intr(phba);
3316 7091
3317 /* Request a slot reset. */ 7092 /* Request a slot reset. */
3318 return PCI_ERS_RESULT_NEED_RESET; 7093 return PCI_ERS_RESULT_NEED_RESET;
3319} 7094}
3320 7095
3321/** 7096/**
3322 * lpfc_io_slot_reset - Restart a PCI device from scratch 7097 * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
3323 * @pdev: pointer to PCI device. 7098 * @pdev: pointer to PCI device.
3324 * 7099 *
3325 * This routine is registered to the PCI subsystem for error handling. This is 7100 * This routine is called from the PCI subsystem for error handling to
3326 * called after PCI bus has been reset to restart the PCI card from scratch, 7101 * device with SLI-3 interface spec. This is called after PCI bus has been
3327 * as if from a cold-boot. During the PCI subsystem error recovery, after the 7102 * reset to restart the PCI card from scratch, as if from a cold-boot.
3328 * driver returns PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform 7103 * During the PCI subsystem error recovery, after driver returns
3329 * proper error recovery and then call this routine before calling the .resume 7104 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
3330 * method to recover the device. This function will initialize the HBA device, 7105 * recovery and then call this routine before calling the .resume method
3331 * enable the interrupt, but it will just put the HBA to offline state without 7106 * to recover the device. This function will initialize the HBA device,
3332 * passing any I/O traffic. 7107 * enable the interrupt, but it will just put the HBA to offline state
7108 * without passing any I/O traffic.
3333 * 7109 *
3334 * Return codes 7110 * Return codes
3335 * PCI_ERS_RESULT_RECOVERED - the device has been recovered 7111 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
3336 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered 7112 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
3337 */ 7113 */
3338static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev) 7114static pci_ers_result_t
7115lpfc_io_slot_reset_s3(struct pci_dev *pdev)
3339{ 7116{
3340 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7117 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3341 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7118 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
@@ -3354,11 +7131,11 @@ static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
3354 pci_set_master(pdev); 7131 pci_set_master(pdev);
3355 7132
3356 spin_lock_irq(&phba->hbalock); 7133 spin_lock_irq(&phba->hbalock);
3357 psli->sli_flag &= ~LPFC_SLI2_ACTIVE; 7134 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3358 spin_unlock_irq(&phba->hbalock); 7135 spin_unlock_irq(&phba->hbalock);
3359 7136
3360 /* Configure and enable interrupt */ 7137 /* Configure and enable interrupt */
3361 intr_mode = lpfc_enable_intr(phba, phba->intr_mode); 7138 intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
3362 if (intr_mode == LPFC_INTR_ERROR) { 7139 if (intr_mode == LPFC_INTR_ERROR) {
3363 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 7140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3364 "0427 Cannot re-enable interrupt after " 7141 "0427 Cannot re-enable interrupt after "
@@ -3378,20 +7155,713 @@ static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
3378} 7155}
3379 7156
3380/** 7157/**
3381 * lpfc_io_resume - Resume PCI I/O operation 7158 * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
3382 * @pdev: pointer to PCI device 7159 * @pdev: pointer to PCI device
3383 * 7160 *
3384 * This routine is registered to the PCI subsystem for error handling. It is 7161 * This routine is called from the PCI subsystem for error handling to device
3385 * called when kernel error recovery tells the lpfc driver that it is ok to 7162 * with SLI-3 interface spec. It is called when kernel error recovery tells
3386 * resume normal PCI operation after PCI bus error recovery. After this call, 7163 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
3387 * traffic can start to flow from this device again. 7164 * error recovery. After this call, traffic can start to flow from this device
7165 * again.
3388 */ 7166 */
3389static void lpfc_io_resume(struct pci_dev *pdev) 7167static void
7168lpfc_io_resume_s3(struct pci_dev *pdev)
7169{
7170 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7171 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7172
7173 lpfc_online(phba);
7174}
7175
7176/**
7177 * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
7178 * @phba: pointer to lpfc hba data structure.
7179 *
7180 * returns the number of ELS/CT IOCBs to reserve
7181 **/
7182int
7183lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
7184{
7185 int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
7186
7187 if (max_xri <= 100)
7188 return 4;
7189 else if (max_xri <= 256)
7190 return 8;
7191 else if (max_xri <= 512)
7192 return 16;
7193 else if (max_xri <= 1024)
7194 return 32;
7195 else
7196 return 48;
7197}
7198
7199/**
7200 * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
7201 * @pdev: pointer to PCI device
7202 * @pid: pointer to PCI device identifier
7203 *
7204 * This routine is called from the kernel's PCI subsystem to device with
7205 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
7206 * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7207 * information of the device and driver to see if the driver state that it
7208 * can support this kind of device. If the match is successful, the driver
7209 * core invokes this routine. If this routine determines it can claim the HBA,
7210 * it does all the initialization that it needs to do to handle the HBA
7211 * properly.
7212 *
7213 * Return code
7214 * 0 - driver can claim the device
7215 * negative value - driver can not claim the device
7216 **/
7217static int __devinit
7218lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
7219{
7220 struct lpfc_hba *phba;
7221 struct lpfc_vport *vport = NULL;
7222 int error;
7223 uint32_t cfg_mode, intr_mode;
7224 int mcnt;
7225
7226 /* Allocate memory for HBA structure */
7227 phba = lpfc_hba_alloc(pdev);
7228 if (!phba)
7229 return -ENOMEM;
7230
7231 /* Perform generic PCI device enabling operation */
7232 error = lpfc_enable_pci_dev(phba);
7233 if (error) {
7234 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7235 "1409 Failed to enable pci device.\n");
7236 goto out_free_phba;
7237 }
7238
7239 /* Set up SLI API function jump table for PCI-device group-1 HBAs */
7240 error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
7241 if (error)
7242 goto out_disable_pci_dev;
7243
7244 /* Set up SLI-4 specific device PCI memory space */
7245 error = lpfc_sli4_pci_mem_setup(phba);
7246 if (error) {
7247 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7248 "1410 Failed to set up pci memory space.\n");
7249 goto out_disable_pci_dev;
7250 }
7251
7252 /* Set up phase-1 common device driver resources */
7253 error = lpfc_setup_driver_resource_phase1(phba);
7254 if (error) {
7255 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7256 "1411 Failed to set up driver resource.\n");
7257 goto out_unset_pci_mem_s4;
7258 }
7259
7260 /* Set up SLI-4 Specific device driver resources */
7261 error = lpfc_sli4_driver_resource_setup(phba);
7262 if (error) {
7263 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7264 "1412 Failed to set up driver resource.\n");
7265 goto out_unset_pci_mem_s4;
7266 }
7267
7268 /* Initialize and populate the iocb list per host */
7269 error = lpfc_init_iocb_list(phba,
7270 phba->sli4_hba.max_cfg_param.max_xri);
7271 if (error) {
7272 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7273 "1413 Failed to initialize iocb list.\n");
7274 goto out_unset_driver_resource_s4;
7275 }
7276
7277 /* Set up common device driver resources */
7278 error = lpfc_setup_driver_resource_phase2(phba);
7279 if (error) {
7280 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7281 "1414 Failed to set up driver resource.\n");
7282 goto out_free_iocb_list;
7283 }
7284
7285 /* Create SCSI host to the physical port */
7286 error = lpfc_create_shost(phba);
7287 if (error) {
7288 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7289 "1415 Failed to create scsi host.\n");
7290 goto out_unset_driver_resource;
7291 }
7292
7293 /* Configure sysfs attributes */
7294 vport = phba->pport;
7295 error = lpfc_alloc_sysfs_attr(vport);
7296 if (error) {
7297 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7298 "1416 Failed to allocate sysfs attr\n");
7299 goto out_destroy_shost;
7300 }
7301
7302 /* Now, trying to enable interrupt and bring up the device */
7303 cfg_mode = phba->cfg_use_msi;
7304 while (true) {
7305 /* Put device to a known state before enabling interrupt */
7306 lpfc_stop_port(phba);
7307 /* Configure and enable interrupt */
7308 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
7309 if (intr_mode == LPFC_INTR_ERROR) {
7310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7311 "0426 Failed to enable interrupt.\n");
7312 error = -ENODEV;
7313 goto out_free_sysfs_attr;
7314 }
7315 /* Set up SLI-4 HBA */
7316 if (lpfc_sli4_hba_setup(phba)) {
7317 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7318 "1421 Failed to set up hba\n");
7319 error = -ENODEV;
7320 goto out_disable_intr;
7321 }
7322
7323 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
7324 if (intr_mode != 0)
7325 mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
7326 LPFC_ACT_INTR_CNT);
7327
7328 /* Check active interrupts received only for MSI/MSI-X */
7329 if (intr_mode == 0 ||
7330 phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
7331 /* Log the current active interrupt mode */
7332 phba->intr_mode = intr_mode;
7333 lpfc_log_intr_mode(phba, intr_mode);
7334 break;
7335 }
7336 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7337 "0451 Configure interrupt mode (%d) "
7338 "failed active interrupt test.\n",
7339 intr_mode);
7340 /* Unset the preivous SLI-4 HBA setup */
7341 lpfc_sli4_unset_hba(phba);
7342 /* Try next level of interrupt mode */
7343 cfg_mode = --intr_mode;
7344 }
7345
7346 /* Perform post initialization setup */
7347 lpfc_post_init_setup(phba);
7348
7349 return 0;
7350
7351out_disable_intr:
7352 lpfc_sli4_disable_intr(phba);
7353out_free_sysfs_attr:
7354 lpfc_free_sysfs_attr(vport);
7355out_destroy_shost:
7356 lpfc_destroy_shost(phba);
7357out_unset_driver_resource:
7358 lpfc_unset_driver_resource_phase2(phba);
7359out_free_iocb_list:
7360 lpfc_free_iocb_list(phba);
7361out_unset_driver_resource_s4:
7362 lpfc_sli4_driver_resource_unset(phba);
7363out_unset_pci_mem_s4:
7364 lpfc_sli4_pci_mem_unset(phba);
7365out_disable_pci_dev:
7366 lpfc_disable_pci_dev(phba);
7367out_free_phba:
7368 lpfc_hba_free(phba);
7369 return error;
7370}
7371
7372/**
7373 * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
7374 * @pdev: pointer to PCI device
7375 *
7376 * This routine is called from the kernel's PCI subsystem to device with
7377 * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
7378 * removed from PCI bus, it performs all the necessary cleanup for the HBA
7379 * device to be removed from the PCI subsystem properly.
7380 **/
7381static void __devexit
7382lpfc_pci_remove_one_s4(struct pci_dev *pdev)
7383{
7384 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7385 struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7386 struct lpfc_vport **vports;
7387 struct lpfc_hba *phba = vport->phba;
7388 int i;
7389
7390 /* Mark the device unloading flag */
7391 spin_lock_irq(&phba->hbalock);
7392 vport->load_flag |= FC_UNLOADING;
7393 spin_unlock_irq(&phba->hbalock);
7394
7395 /* Free the HBA sysfs attributes */
7396 lpfc_free_sysfs_attr(vport);
7397
7398 /* Release all the vports against this physical port */
7399 vports = lpfc_create_vport_work_array(phba);
7400 if (vports != NULL)
7401 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
7402 fc_vport_terminate(vports[i]->fc_vport);
7403 lpfc_destroy_vport_work_array(phba, vports);
7404
7405 /* Remove FC host and then SCSI host with the physical port */
7406 fc_remove_host(shost);
7407 scsi_remove_host(shost);
7408
7409 /* Perform cleanup on the physical port */
7410 lpfc_cleanup(vport);
7411
7412 /*
7413 * Bring down the SLI Layer. This step disables all interrupts,
7414 * clears the rings, discards all mailbox commands, and resets
7415 * the HBA FCoE function.
7416 */
7417 lpfc_debugfs_terminate(vport);
7418 lpfc_sli4_hba_unset(phba);
7419
7420 spin_lock_irq(&phba->hbalock);
7421 list_del_init(&vport->listentry);
7422 spin_unlock_irq(&phba->hbalock);
7423
7424 /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi
7425 * buffers are released to their corresponding pools here.
7426 */
7427 lpfc_scsi_free(phba);
7428 lpfc_sli4_driver_resource_unset(phba);
7429
7430 /* Unmap adapter Control and Doorbell registers */
7431 lpfc_sli4_pci_mem_unset(phba);
7432
7433 /* Release PCI resources and disable device's PCI function */
7434 scsi_host_put(shost);
7435 lpfc_disable_pci_dev(phba);
7436
7437 /* Finally, free the driver's device data structure */
7438 lpfc_hba_free(phba);
7439
7440 return;
7441}
7442
7443/**
7444 * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
7445 * @pdev: pointer to PCI device
7446 * @msg: power management message
7447 *
7448 * This routine is called from the kernel's PCI subsystem to support system
7449 * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
7450 * this method, it quiesces the device by stopping the driver's worker
7451 * thread for the device, turning off device's interrupt and DMA, and bring
7452 * the device offline. Note that as the driver implements the minimum PM
7453 * requirements to a power-aware driver's PM support for suspend/resume -- all
7454 * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
7455 * method call will be treated as SUSPEND and the driver will fully
7456 * reinitialize its device during resume() method call, the driver will set
7457 * device to PCI_D3hot state in PCI config space instead of setting it
7458 * according to the @msg provided by the PM.
7459 *
7460 * Return code
7461 * 0 - driver suspended the device
7462 * Error otherwise
7463 **/
7464static int
7465lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
3390{ 7466{
3391 struct Scsi_Host *shost = pci_get_drvdata(pdev); 7467 struct Scsi_Host *shost = pci_get_drvdata(pdev);
3392 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; 7468 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
3393 7469
7470 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7471 "0298 PCI device Power Management suspend.\n");
7472
7473 /* Bring down the device */
7474 lpfc_offline_prep(phba);
7475 lpfc_offline(phba);
7476 kthread_stop(phba->worker_thread);
7477
7478 /* Disable interrupt from device */
7479 lpfc_sli4_disable_intr(phba);
7480
7481 /* Save device state to PCI config space */
7482 pci_save_state(pdev);
7483 pci_set_power_state(pdev, PCI_D3hot);
7484
7485 return 0;
7486}
7487
7488/**
7489 * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
7490 * @pdev: pointer to PCI device
7491 *
7492 * This routine is called from the kernel's PCI subsystem to support system
7493 * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
7494 * this method, it restores the device's PCI config space state and fully
7495 * reinitializes the device and brings it online. Note that as the driver
7496 * implements the minimum PM requirements to a power-aware driver's PM for
7497 * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7498 * to the suspend() method call will be treated as SUSPEND and the driver
7499 * will fully reinitialize its device during resume() method call, the device
7500 * will be set to PCI_D0 directly in PCI config space before restoring the
7501 * state.
7502 *
7503 * Return code
7504 * 0 - driver suspended the device
7505 * Error otherwise
7506 **/
7507static int
7508lpfc_pci_resume_one_s4(struct pci_dev *pdev)
7509{
7510 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7511 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7512 uint32_t intr_mode;
7513 int error;
7514
7515 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7516 "0292 PCI device Power Management resume.\n");
7517
7518 /* Restore device state from PCI config space */
7519 pci_set_power_state(pdev, PCI_D0);
7520 pci_restore_state(pdev);
7521 if (pdev->is_busmaster)
7522 pci_set_master(pdev);
7523
7524 /* Startup the kernel thread for this host adapter. */
7525 phba->worker_thread = kthread_run(lpfc_do_work, phba,
7526 "lpfc_worker_%d", phba->brd_no);
7527 if (IS_ERR(phba->worker_thread)) {
7528 error = PTR_ERR(phba->worker_thread);
7529 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7530 "0293 PM resume failed to start worker "
7531 "thread: error=x%x.\n", error);
7532 return error;
7533 }
7534
7535 /* Configure and enable interrupt */
7536 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
7537 if (intr_mode == LPFC_INTR_ERROR) {
7538 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7539 "0294 PM resume Failed to enable interrupt\n");
7540 return -EIO;
7541 } else
7542 phba->intr_mode = intr_mode;
7543
7544 /* Restart HBA and bring it online */
7545 lpfc_sli_brdrestart(phba);
3394 lpfc_online(phba); 7546 lpfc_online(phba);
7547
7548 /* Log the current active interrupt mode */
7549 lpfc_log_intr_mode(phba, phba->intr_mode);
7550
7551 return 0;
7552}
7553
7554/**
7555 * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
7556 * @pdev: pointer to PCI device.
7557 * @state: the current PCI connection state.
7558 *
7559 * This routine is called from the PCI subsystem for error handling to device
7560 * with SLI-4 interface spec. This function is called by the PCI subsystem
7561 * after a PCI bus error affecting this device has been detected. When this
7562 * function is invoked, it will need to stop all the I/Os and interrupt(s)
7563 * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
7564 * for the PCI subsystem to perform proper recovery as desired.
7565 *
7566 * Return codes
7567 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7568 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7569 **/
7570static pci_ers_result_t
7571lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
7572{
7573 return PCI_ERS_RESULT_NEED_RESET;
7574}
7575
7576/**
7577 * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
7578 * @pdev: pointer to PCI device.
7579 *
7580 * This routine is called from the PCI subsystem for error handling to device
7581 * with SLI-4 interface spec. It is called after PCI bus has been reset to
7582 * restart the PCI card from scratch, as if from a cold-boot. During the
7583 * PCI subsystem error recovery, after the driver returns
7584 * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7585 * recovery and then call this routine before calling the .resume method to
7586 * recover the device. This function will initialize the HBA device, enable
7587 * the interrupt, but it will just put the HBA to offline state without
7588 * passing any I/O traffic.
7589 *
7590 * Return codes
7591 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7592 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7593 */
7594static pci_ers_result_t
7595lpfc_io_slot_reset_s4(struct pci_dev *pdev)
7596{
7597 return PCI_ERS_RESULT_RECOVERED;
7598}
7599
7600/**
7601 * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
7602 * @pdev: pointer to PCI device
7603 *
7604 * This routine is called from the PCI subsystem for error handling to device
7605 * with SLI-4 interface spec. It is called when kernel error recovery tells
7606 * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7607 * error recovery. After this call, traffic can start to flow from this device
7608 * again.
7609 **/
7610static void
7611lpfc_io_resume_s4(struct pci_dev *pdev)
7612{
7613 return;
7614}
7615
7616/**
7617 * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
7618 * @pdev: pointer to PCI device
7619 * @pid: pointer to PCI device identifier
7620 *
7621 * This routine is to be registered to the kernel's PCI subsystem. When an
7622 * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
7623 * at PCI device-specific information of the device and driver to see if the
7624 * driver state that it can support this kind of device. If the match is
7625 * successful, the driver core invokes this routine. This routine dispatches
7626 * the action to the proper SLI-3 or SLI-4 device probing routine, which will
7627 * do all the initialization that it needs to do to handle the HBA device
7628 * properly.
7629 *
7630 * Return code
7631 * 0 - driver can claim the device
7632 * negative value - driver can not claim the device
7633 **/
7634static int __devinit
7635lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
7636{
7637 int rc;
7638 uint16_t dev_id;
7639
7640 if (pci_read_config_word(pdev, PCI_DEVICE_ID, &dev_id))
7641 return -ENODEV;
7642
7643 switch (dev_id) {
7644 case PCI_DEVICE_ID_TIGERSHARK:
7645 case PCI_DEVICE_ID_TIGERSHARK_S:
7646 rc = lpfc_pci_probe_one_s4(pdev, pid);
7647 break;
7648 default:
7649 rc = lpfc_pci_probe_one_s3(pdev, pid);
7650 break;
7651 }
7652 return rc;
7653}
7654
7655/**
7656 * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
7657 * @pdev: pointer to PCI device
7658 *
7659 * This routine is to be registered to the kernel's PCI subsystem. When an
7660 * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
7661 * This routine dispatches the action to the proper SLI-3 or SLI-4 device
7662 * remove routine, which will perform all the necessary cleanup for the
7663 * device to be removed from the PCI subsystem properly.
7664 **/
7665static void __devexit
7666lpfc_pci_remove_one(struct pci_dev *pdev)
7667{
7668 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7669 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7670
7671 switch (phba->pci_dev_grp) {
7672 case LPFC_PCI_DEV_LP:
7673 lpfc_pci_remove_one_s3(pdev);
7674 break;
7675 case LPFC_PCI_DEV_OC:
7676 lpfc_pci_remove_one_s4(pdev);
7677 break;
7678 default:
7679 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7680 "1424 Invalid PCI device group: 0x%x\n",
7681 phba->pci_dev_grp);
7682 break;
7683 }
7684 return;
7685}
7686
7687/**
7688 * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
7689 * @pdev: pointer to PCI device
7690 * @msg: power management message
7691 *
7692 * This routine is to be registered to the kernel's PCI subsystem to support
7693 * system Power Management (PM). When PM invokes this method, it dispatches
7694 * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
7695 * suspend the device.
7696 *
7697 * Return code
7698 * 0 - driver suspended the device
7699 * Error otherwise
7700 **/
7701static int
7702lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
7703{
7704 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7705 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7706 int rc = -ENODEV;
7707
7708 switch (phba->pci_dev_grp) {
7709 case LPFC_PCI_DEV_LP:
7710 rc = lpfc_pci_suspend_one_s3(pdev, msg);
7711 break;
7712 case LPFC_PCI_DEV_OC:
7713 rc = lpfc_pci_suspend_one_s4(pdev, msg);
7714 break;
7715 default:
7716 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7717 "1425 Invalid PCI device group: 0x%x\n",
7718 phba->pci_dev_grp);
7719 break;
7720 }
7721 return rc;
7722}
7723
7724/**
7725 * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
7726 * @pdev: pointer to PCI device
7727 *
7728 * This routine is to be registered to the kernel's PCI subsystem to support
7729 * system Power Management (PM). When PM invokes this method, it dispatches
7730 * the action to the proper SLI-3 or SLI-4 device resume routine, which will
7731 * resume the device.
7732 *
7733 * Return code
7734 * 0 - driver suspended the device
7735 * Error otherwise
7736 **/
7737static int
7738lpfc_pci_resume_one(struct pci_dev *pdev)
7739{
7740 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7741 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7742 int rc = -ENODEV;
7743
7744 switch (phba->pci_dev_grp) {
7745 case LPFC_PCI_DEV_LP:
7746 rc = lpfc_pci_resume_one_s3(pdev);
7747 break;
7748 case LPFC_PCI_DEV_OC:
7749 rc = lpfc_pci_resume_one_s4(pdev);
7750 break;
7751 default:
7752 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7753 "1426 Invalid PCI device group: 0x%x\n",
7754 phba->pci_dev_grp);
7755 break;
7756 }
7757 return rc;
7758}
7759
7760/**
7761 * lpfc_io_error_detected - lpfc method for handling PCI I/O error
7762 * @pdev: pointer to PCI device.
7763 * @state: the current PCI connection state.
7764 *
7765 * This routine is registered to the PCI subsystem for error handling. This
7766 * function is called by the PCI subsystem after a PCI bus error affecting
7767 * this device has been detected. When this routine is invoked, it dispatches
7768 * the action to the proper SLI-3 or SLI-4 device error detected handling
7769 * routine, which will perform the proper error detected operation.
7770 *
7771 * Return codes
7772 * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7773 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7774 **/
7775static pci_ers_result_t
7776lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
7777{
7778 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7779 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7780 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
7781
7782 switch (phba->pci_dev_grp) {
7783 case LPFC_PCI_DEV_LP:
7784 rc = lpfc_io_error_detected_s3(pdev, state);
7785 break;
7786 case LPFC_PCI_DEV_OC:
7787 rc = lpfc_io_error_detected_s4(pdev, state);
7788 break;
7789 default:
7790 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7791 "1427 Invalid PCI device group: 0x%x\n",
7792 phba->pci_dev_grp);
7793 break;
7794 }
7795 return rc;
7796}
7797
7798/**
7799 * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
7800 * @pdev: pointer to PCI device.
7801 *
7802 * This routine is registered to the PCI subsystem for error handling. This
7803 * function is called after PCI bus has been reset to restart the PCI card
7804 * from scratch, as if from a cold-boot. When this routine is invoked, it
7805 * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
7806 * routine, which will perform the proper device reset.
7807 *
7808 * Return codes
7809 * PCI_ERS_RESULT_RECOVERED - the device has been recovered
7810 * PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7811 **/
7812static pci_ers_result_t
7813lpfc_io_slot_reset(struct pci_dev *pdev)
7814{
7815 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7816 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7817 pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
7818
7819 switch (phba->pci_dev_grp) {
7820 case LPFC_PCI_DEV_LP:
7821 rc = lpfc_io_slot_reset_s3(pdev);
7822 break;
7823 case LPFC_PCI_DEV_OC:
7824 rc = lpfc_io_slot_reset_s4(pdev);
7825 break;
7826 default:
7827 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7828 "1428 Invalid PCI device group: 0x%x\n",
7829 phba->pci_dev_grp);
7830 break;
7831 }
7832 return rc;
7833}
7834
7835/**
7836 * lpfc_io_resume - lpfc method for resuming PCI I/O operation
7837 * @pdev: pointer to PCI device
7838 *
7839 * This routine is registered to the PCI subsystem for error handling. It
7840 * is called when kernel error recovery tells the lpfc driver that it is
7841 * OK to resume normal PCI operation after PCI bus error recovery. When
7842 * this routine is invoked, it dispatches the action to the proper SLI-3
7843 * or SLI-4 device io_resume routine, which will resume the device operation.
7844 **/
7845static void
7846lpfc_io_resume(struct pci_dev *pdev)
7847{
7848 struct Scsi_Host *shost = pci_get_drvdata(pdev);
7849 struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7850
7851 switch (phba->pci_dev_grp) {
7852 case LPFC_PCI_DEV_LP:
7853 lpfc_io_resume_s3(pdev);
7854 break;
7855 case LPFC_PCI_DEV_OC:
7856 lpfc_io_resume_s4(pdev);
7857 break;
7858 default:
7859 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7860 "1429 Invalid PCI device group: 0x%x\n",
7861 phba->pci_dev_grp);
7862 break;
7863 }
7864 return;
3395} 7865}
3396 7866
3397static struct pci_device_id lpfc_id_table[] = { 7867static struct pci_device_id lpfc_id_table[] = {
@@ -3469,6 +7939,10 @@ static struct pci_device_id lpfc_id_table[] = {
3469 PCI_ANY_ID, PCI_ANY_ID, }, 7939 PCI_ANY_ID, PCI_ANY_ID, },
3470 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S, 7940 {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
3471 PCI_ANY_ID, PCI_ANY_ID, }, 7941 PCI_ANY_ID, PCI_ANY_ID, },
7942 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
7943 PCI_ANY_ID, PCI_ANY_ID, },
7944 {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK_S,
7945 PCI_ANY_ID, PCI_ANY_ID, },
3472 { 0 } 7946 { 0 }
3473}; 7947};
3474 7948
@@ -3486,7 +7960,7 @@ static struct pci_driver lpfc_driver = {
3486 .probe = lpfc_pci_probe_one, 7960 .probe = lpfc_pci_probe_one,
3487 .remove = __devexit_p(lpfc_pci_remove_one), 7961 .remove = __devexit_p(lpfc_pci_remove_one),
3488 .suspend = lpfc_pci_suspend_one, 7962 .suspend = lpfc_pci_suspend_one,
3489 .resume = lpfc_pci_resume_one, 7963 .resume = lpfc_pci_resume_one,
3490 .err_handler = &lpfc_err_handler, 7964 .err_handler = &lpfc_err_handler,
3491}; 7965};
3492 7966
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-20 23:52:58 -0400