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authorJames Smart <James.Smart@Emulex.Com>2008-12-04 22:40:02 -0500
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-12-29 12:24:28 -0500
commite2a0a9d69ce224c6f5b72515d81150e6bf4a905a (patch)
treefdd6d82431841c31c80cbabc24927fbb94c59cd6 /drivers
parent81301a9b05c3690bf32bf4ef37d941f0f870a7ba (diff)
[SCSI] lpfc 8.3.0 : Add BlockGuard support (T10-DIF) code
Add SCSI data path, error handling, and debugfs code to complete BlockGuard support. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/scsi/lpfc/lpfc_debugfs.c152
-rw-r--r--drivers/scsi/lpfc/lpfc_mbox.c2
-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.c874
-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.h2
-rw-r--r--drivers/scsi/lpfc/lpfc_sli.c13
5 files changed, 1026 insertions, 17 deletions
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index 771920bdde44..992009a9470f 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -907,6 +907,91 @@ out:
907 return rc; 907 return rc;
908} 908}
909 909
910static int
911lpfc_debugfs_dumpData_open(struct inode *inode, struct file *file)
912{
913 struct lpfc_debug *debug;
914 int rc = -ENOMEM;
915
916 if (!_dump_buf_data)
917 return -EBUSY;
918
919 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
920 if (!debug)
921 goto out;
922
923 /* Round to page boundry */
924 printk(KERN_ERR "BLKGRD %s: _dump_buf_data=0x%p\n",
925 __func__, _dump_buf_data);
926 debug->buffer = _dump_buf_data;
927 if (!debug->buffer) {
928 kfree(debug);
929 goto out;
930 }
931
932 debug->len = (1 << _dump_buf_data_order) << PAGE_SHIFT;
933 file->private_data = debug;
934
935 rc = 0;
936out:
937 return rc;
938}
939
940static int
941lpfc_debugfs_dumpDif_open(struct inode *inode, struct file *file)
942{
943 struct lpfc_debug *debug;
944 int rc = -ENOMEM;
945
946 if (!_dump_buf_dif)
947 return -EBUSY;
948
949 debug = kmalloc(sizeof(*debug), GFP_KERNEL);
950 if (!debug)
951 goto out;
952
953 /* Round to page boundry */
954 printk(KERN_ERR "BLKGRD %s: _dump_buf_dif=0x%p file=%s\n", __func__,
955 _dump_buf_dif, file->f_dentry->d_name.name);
956 debug->buffer = _dump_buf_dif;
957 if (!debug->buffer) {
958 kfree(debug);
959 goto out;
960 }
961
962 debug->len = (1 << _dump_buf_dif_order) << PAGE_SHIFT;
963 file->private_data = debug;
964
965 rc = 0;
966out:
967 return rc;
968}
969
970static ssize_t
971lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf,
972 size_t nbytes, loff_t *ppos)
973{
974 /*
975 * The Data/DIF buffers only save one failing IO
976 * The write op is used as a reset mechanism after an IO has
977 * already been saved to the next one can be saved
978 */
979 spin_lock(&_dump_buf_lock);
980
981 memset((void *)_dump_buf_data, 0,
982 ((1 << PAGE_SHIFT) << _dump_buf_data_order));
983 memset((void *)_dump_buf_dif, 0,
984 ((1 << PAGE_SHIFT) << _dump_buf_dif_order));
985
986 _dump_buf_done = 0;
987
988 spin_unlock(&_dump_buf_lock);
989
990 return nbytes;
991}
992
993
994
910/** 995/**
911 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file. 996 * lpfc_debugfs_nodelist_open - Open the nodelist debugfs file.
912 * @inode: The inode pointer that contains a vport pointer. 997 * @inode: The inode pointer that contains a vport pointer.
@@ -1035,6 +1120,17 @@ lpfc_debugfs_release(struct inode *inode, struct file *file)
1035 return 0; 1120 return 0;
1036} 1121}
1037 1122
1123static int
1124lpfc_debugfs_dumpDataDif_release(struct inode *inode, struct file *file)
1125{
1126 struct lpfc_debug *debug = file->private_data;
1127
1128 debug->buffer = NULL;
1129 kfree(debug);
1130
1131 return 0;
1132}
1133
1038#undef lpfc_debugfs_op_disc_trc 1134#undef lpfc_debugfs_op_disc_trc
1039static struct file_operations lpfc_debugfs_op_disc_trc = { 1135static struct file_operations lpfc_debugfs_op_disc_trc = {
1040 .owner = THIS_MODULE, 1136 .owner = THIS_MODULE,
@@ -1080,6 +1176,26 @@ static struct file_operations lpfc_debugfs_op_dumpHostSlim = {
1080 .release = lpfc_debugfs_release, 1176 .release = lpfc_debugfs_release,
1081}; 1177};
1082 1178
1179#undef lpfc_debugfs_op_dumpData
1180static struct file_operations lpfc_debugfs_op_dumpData = {
1181 .owner = THIS_MODULE,
1182 .open = lpfc_debugfs_dumpData_open,
1183 .llseek = lpfc_debugfs_lseek,
1184 .read = lpfc_debugfs_read,
1185 .write = lpfc_debugfs_dumpDataDif_write,
1186 .release = lpfc_debugfs_dumpDataDif_release,
1187};
1188
1189#undef lpfc_debugfs_op_dumpDif
1190static struct file_operations lpfc_debugfs_op_dumpDif = {
1191 .owner = THIS_MODULE,
1192 .open = lpfc_debugfs_dumpDif_open,
1193 .llseek = lpfc_debugfs_lseek,
1194 .read = lpfc_debugfs_read,
1195 .write = lpfc_debugfs_dumpDataDif_write,
1196 .release = lpfc_debugfs_dumpDataDif_release,
1197};
1198
1083#undef lpfc_debugfs_op_slow_ring_trc 1199#undef lpfc_debugfs_op_slow_ring_trc
1084static struct file_operations lpfc_debugfs_op_slow_ring_trc = { 1200static struct file_operations lpfc_debugfs_op_slow_ring_trc = {
1085 .owner = THIS_MODULE, 1201 .owner = THIS_MODULE,
@@ -1176,6 +1292,32 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport)
1176 goto debug_failed; 1292 goto debug_failed;
1177 } 1293 }
1178 1294
1295 /* Setup dumpData */
1296 snprintf(name, sizeof(name), "dumpData");
1297 phba->debug_dumpData =
1298 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
1299 phba->hba_debugfs_root,
1300 phba, &lpfc_debugfs_op_dumpData);
1301 if (!phba->debug_dumpData) {
1302 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1303 "0800 Cannot create debugfs dumpData\n");
1304 goto debug_failed;
1305 }
1306
1307 /* Setup dumpDif */
1308 snprintf(name, sizeof(name), "dumpDif");
1309 phba->debug_dumpDif =
1310 debugfs_create_file(name, S_IFREG|S_IRUGO|S_IWUSR,
1311 phba->hba_debugfs_root,
1312 phba, &lpfc_debugfs_op_dumpDif);
1313 if (!phba->debug_dumpDif) {
1314 lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
1315 "0801 Cannot create debugfs dumpDif\n");
1316 goto debug_failed;
1317 }
1318
1319
1320
1179 /* Setup slow ring trace */ 1321 /* Setup slow ring trace */
1180 if (lpfc_debugfs_max_slow_ring_trc) { 1322 if (lpfc_debugfs_max_slow_ring_trc) {
1181 num = lpfc_debugfs_max_slow_ring_trc - 1; 1323 num = lpfc_debugfs_max_slow_ring_trc - 1;
@@ -1340,6 +1482,16 @@ lpfc_debugfs_terminate(struct lpfc_vport *vport)
1340 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */ 1482 debugfs_remove(phba->debug_dumpHostSlim); /* HostSlim */
1341 phba->debug_dumpHostSlim = NULL; 1483 phba->debug_dumpHostSlim = NULL;
1342 } 1484 }
1485 if (phba->debug_dumpData) {
1486 debugfs_remove(phba->debug_dumpData); /* dumpData */
1487 phba->debug_dumpData = NULL;
1488 }
1489
1490 if (phba->debug_dumpDif) {
1491 debugfs_remove(phba->debug_dumpDif); /* dumpDif */
1492 phba->debug_dumpDif = NULL;
1493 }
1494
1343 if (phba->slow_ring_trc) { 1495 if (phba->slow_ring_trc) {
1344 kfree(phba->slow_ring_trc); 1496 kfree(phba->slow_ring_trc);
1345 phba->slow_ring_trc = NULL; 1497 phba->slow_ring_trc = NULL;
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index 7c02a6c3b699..34eeb086a667 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -1099,6 +1099,8 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
1099 /* If HBA supports SLI=3 ask for it */ 1099 /* If HBA supports SLI=3 ask for it */
1100 1100
1101 if (phba->sli_rev == 3 && phba->vpd.sli3Feat.cerbm) { 1101 if (phba->sli_rev == 3 && phba->vpd.sli3Feat.cerbm) {
1102 if (phba->cfg_enable_bg)
1103 mb->un.varCfgPort.cbg = 1; /* configure BlockGuard */
1102 mb->un.varCfgPort.cerbm = 1; /* Request HBQs */ 1104 mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
1103 mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */ 1105 mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */
1104 mb->un.varCfgPort.cinb = 1; /* Interrupt Notification Block */ 1106 mb->un.varCfgPort.cinb = 1; /* Interrupt Notification Block */
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 5f697ace9706..83a8e7eed628 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -18,13 +18,14 @@
18 * more details, a copy of which can be found in the file COPYING * 18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. * 19 * included with this package. *
20 *******************************************************************/ 20 *******************************************************************/
21
22#include <linux/pci.h> 21#include <linux/pci.h>
23#include <linux/interrupt.h> 22#include <linux/interrupt.h>
24#include <linux/delay.h> 23#include <linux/delay.h>
24#include <asm/unaligned.h>
25 25
26#include <scsi/scsi.h> 26#include <scsi/scsi.h>
27#include <scsi/scsi_device.h> 27#include <scsi/scsi_device.h>
28#include <scsi/scsi_eh.h>
28#include <scsi/scsi_host.h> 29#include <scsi/scsi_host.h>
29#include <scsi/scsi_tcq.h> 30#include <scsi/scsi_tcq.h>
30#include <scsi/scsi_transport_fc.h> 31#include <scsi/scsi_transport_fc.h>
@@ -43,6 +44,73 @@
43#define LPFC_RESET_WAIT 2 44#define LPFC_RESET_WAIT 2
44#define LPFC_ABORT_WAIT 2 45#define LPFC_ABORT_WAIT 2
45 46
47int _dump_buf_done;
48
49static char *dif_op_str[] = {
50 "SCSI_PROT_NORMAL",
51 "SCSI_PROT_READ_INSERT",
52 "SCSI_PROT_WRITE_STRIP",
53 "SCSI_PROT_READ_STRIP",
54 "SCSI_PROT_WRITE_INSERT",
55 "SCSI_PROT_READ_PASS",
56 "SCSI_PROT_WRITE_PASS",
57 "SCSI_PROT_READ_CONVERT",
58 "SCSI_PROT_WRITE_CONVERT"
59};
60
61static void
62lpfc_debug_save_data(struct scsi_cmnd *cmnd)
63{
64 void *src, *dst;
65 struct scatterlist *sgde = scsi_sglist(cmnd);
66
67 if (!_dump_buf_data) {
68 printk(KERN_ERR "BLKGRD ERROR %s _dump_buf_data is NULL\n",
69 __func__);
70 return;
71 }
72
73
74 if (!sgde) {
75 printk(KERN_ERR "BLKGRD ERROR: data scatterlist is null\n");
76 return;
77 }
78
79 dst = (void *) _dump_buf_data;
80 while (sgde) {
81 src = sg_virt(sgde);
82 memcpy(dst, src, sgde->length);
83 dst += sgde->length;
84 sgde = sg_next(sgde);
85 }
86}
87
88static void
89lpfc_debug_save_dif(struct scsi_cmnd *cmnd)
90{
91 void *src, *dst;
92 struct scatterlist *sgde = scsi_prot_sglist(cmnd);
93
94 if (!_dump_buf_dif) {
95 printk(KERN_ERR "BLKGRD ERROR %s _dump_buf_data is NULL\n",
96 __func__);
97 return;
98 }
99
100 if (!sgde) {
101 printk(KERN_ERR "BLKGRD ERROR: prot scatterlist is null\n");
102 return;
103 }
104
105 dst = _dump_buf_dif;
106 while (sgde) {
107 src = sg_virt(sgde);
108 memcpy(dst, src, sgde->length);
109 dst += sgde->length;
110 sgde = sg_next(sgde);
111 }
112}
113
46/** 114/**
47 * lpfc_update_stats: Update statistical data for the command completion. 115 * lpfc_update_stats: Update statistical data for the command completion.
48 * @phba: Pointer to HBA object. 116 * @phba: Pointer to HBA object.
@@ -463,7 +531,8 @@ lpfc_new_scsi_buf(struct lpfc_vport *vport)
463 */ 531 */
464 iocb = &psb->cur_iocbq.iocb; 532 iocb = &psb->cur_iocbq.iocb;
465 iocb->un.fcpi64.bdl.ulpIoTag32 = 0; 533 iocb->un.fcpi64.bdl.ulpIoTag32 = 0;
466 if (phba->sli_rev == 3) { 534 if ((phba->sli_rev == 3) &&
535 !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) {
467 /* fill in immediate fcp command BDE */ 536 /* fill in immediate fcp command BDE */
468 iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_IMMED; 537 iocb->un.fcpi64.bdl.bdeFlags = BUFF_TYPE_BDE_IMMED;
469 iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd); 538 iocb->un.fcpi64.bdl.bdeSize = sizeof(struct fcp_cmnd);
@@ -516,6 +585,7 @@ lpfc_get_scsi_buf(struct lpfc_hba * phba)
516 if (lpfc_cmd) { 585 if (lpfc_cmd) {
517 lpfc_cmd->seg_cnt = 0; 586 lpfc_cmd->seg_cnt = 0;
518 lpfc_cmd->nonsg_phys = 0; 587 lpfc_cmd->nonsg_phys = 0;
588 lpfc_cmd->prot_seg_cnt = 0;
519 } 589 }
520 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag); 590 spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
521 return lpfc_cmd; 591 return lpfc_cmd;
@@ -590,7 +660,7 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
590 lpfc_cmd->seg_cnt = nseg; 660 lpfc_cmd->seg_cnt = nseg;
591 if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) { 661 if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) {
592 printk(KERN_ERR "%s: Too many sg segments from " 662 printk(KERN_ERR "%s: Too many sg segments from "
593 "dma_map_sg. Config %d, seg_cnt %d", 663 "dma_map_sg. Config %d, seg_cnt %d\n",
594 __func__, phba->cfg_sg_seg_cnt, 664 __func__, phba->cfg_sg_seg_cnt,
595 lpfc_cmd->seg_cnt); 665 lpfc_cmd->seg_cnt);
596 scsi_dma_unmap(scsi_cmnd); 666 scsi_dma_unmap(scsi_cmnd);
@@ -609,6 +679,7 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
609 scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) { 679 scsi_for_each_sg(scsi_cmnd, sgel, nseg, num_bde) {
610 physaddr = sg_dma_address(sgel); 680 physaddr = sg_dma_address(sgel);
611 if (phba->sli_rev == 3 && 681 if (phba->sli_rev == 3 &&
682 !(phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
612 nseg <= LPFC_EXT_DATA_BDE_COUNT) { 683 nseg <= LPFC_EXT_DATA_BDE_COUNT) {
613 data_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64; 684 data_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
614 data_bde->tus.f.bdeSize = sg_dma_len(sgel); 685 data_bde->tus.f.bdeSize = sg_dma_len(sgel);
@@ -634,7 +705,8 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
634 * explicitly reinitialized and for SLI-3 the extended bde count is 705 * explicitly reinitialized and for SLI-3 the extended bde count is
635 * explicitly reinitialized since all iocb memory resources are reused. 706 * explicitly reinitialized since all iocb memory resources are reused.
636 */ 707 */
637 if (phba->sli_rev == 3) { 708 if (phba->sli_rev == 3 &&
709 !(phba->sli3_options & LPFC_SLI3_BG_ENABLED)) {
638 if (num_bde > LPFC_EXT_DATA_BDE_COUNT) { 710 if (num_bde > LPFC_EXT_DATA_BDE_COUNT) {
639 /* 711 /*
640 * The extended IOCB format can only fit 3 BDE or a BPL. 712 * The extended IOCB format can only fit 3 BDE or a BPL.
@@ -661,9 +733,685 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
661 ((num_bde + 2) * sizeof(struct ulp_bde64)); 733 ((num_bde + 2) * sizeof(struct ulp_bde64));
662 } 734 }
663 fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd)); 735 fcp_cmnd->fcpDl = cpu_to_be32(scsi_bufflen(scsi_cmnd));
736
737 /*
738 * Due to difference in data length between DIF/non-DIF paths,
739 * we need to set word 4 of IOCB here
740 */
741 iocb_cmd->un.fcpi.fcpi_parm = le32_to_cpu(scsi_bufflen(scsi_cmnd));
664 return 0; 742 return 0;
665} 743}
666 744
745/*
746 * Given a scsi cmnd, determine the BlockGuard profile to be used
747 * with the cmd
748 */
749static int
750lpfc_sc_to_sli_prof(struct scsi_cmnd *sc)
751{
752 uint8_t guard_type = scsi_host_get_guard(sc->device->host);
753 uint8_t ret_prof = LPFC_PROF_INVALID;
754
755 if (guard_type == SHOST_DIX_GUARD_IP) {
756 switch (scsi_get_prot_op(sc)) {
757 case SCSI_PROT_READ_INSERT:
758 case SCSI_PROT_WRITE_STRIP:
759 ret_prof = LPFC_PROF_AST2;
760 break;
761
762 case SCSI_PROT_READ_STRIP:
763 case SCSI_PROT_WRITE_INSERT:
764 ret_prof = LPFC_PROF_A1;
765 break;
766
767 case SCSI_PROT_READ_CONVERT:
768 case SCSI_PROT_WRITE_CONVERT:
769 ret_prof = LPFC_PROF_AST1;
770 break;
771
772 case SCSI_PROT_READ_PASS:
773 case SCSI_PROT_WRITE_PASS:
774 case SCSI_PROT_NORMAL:
775 default:
776 printk(KERN_ERR "Bad op/guard:%d/%d combination\n",
777 scsi_get_prot_op(sc), guard_type);
778 break;
779
780 }
781 } else if (guard_type == SHOST_DIX_GUARD_CRC) {
782 switch (scsi_get_prot_op(sc)) {
783 case SCSI_PROT_READ_STRIP:
784 case SCSI_PROT_WRITE_INSERT:
785 ret_prof = LPFC_PROF_A1;
786 break;
787
788 case SCSI_PROT_READ_PASS:
789 case SCSI_PROT_WRITE_PASS:
790 ret_prof = LPFC_PROF_C1;
791 break;
792
793 case SCSI_PROT_READ_CONVERT:
794 case SCSI_PROT_WRITE_CONVERT:
795 case SCSI_PROT_READ_INSERT:
796 case SCSI_PROT_WRITE_STRIP:
797 case SCSI_PROT_NORMAL:
798 default:
799 printk(KERN_ERR "Bad op/guard:%d/%d combination\n",
800 scsi_get_prot_op(sc), guard_type);
801 break;
802 }
803 } else {
804 /* unsupported format */
805 BUG();
806 }
807
808 return ret_prof;
809}
810
811struct scsi_dif_tuple {
812 __be16 guard_tag; /* Checksum */
813 __be16 app_tag; /* Opaque storage */
814 __be32 ref_tag; /* Target LBA or indirect LBA */
815};
816
817static inline unsigned
818lpfc_cmd_blksize(struct scsi_cmnd *sc)
819{
820 return sc->device->sector_size;
821}
822
823/**
824 * lpfc_get_cmd_dif_parms - Extract DIF parameters from SCSI command
825 * @sc: in: SCSI command
826 * @apptagmask out: app tag mask
827 * @apptagval out: app tag value
828 * @reftag out: ref tag (reference tag)
829 *
830 * Description:
831 * Extract DIF paramters from the command if possible. Otherwise,
832 * use default paratmers.
833 *
834 **/
835static inline void
836lpfc_get_cmd_dif_parms(struct scsi_cmnd *sc, uint16_t *apptagmask,
837 uint16_t *apptagval, uint32_t *reftag)
838{
839 struct scsi_dif_tuple *spt;
840 unsigned char op = scsi_get_prot_op(sc);
841 unsigned int protcnt = scsi_prot_sg_count(sc);
842 static int cnt;
843
844 if (protcnt && (op == SCSI_PROT_WRITE_STRIP ||
845 op == SCSI_PROT_WRITE_PASS ||
846 op == SCSI_PROT_WRITE_CONVERT)) {
847
848 cnt++;
849 spt = page_address(sg_page(scsi_prot_sglist(sc))) +
850 scsi_prot_sglist(sc)[0].offset;
851 *apptagmask = 0;
852 *apptagval = 0;
853 *reftag = cpu_to_be32(spt->ref_tag);
854
855 } else {
856 /* SBC defines ref tag to be lower 32bits of LBA */
857 *reftag = (uint32_t) (0xffffffff & scsi_get_lba(sc));
858 *apptagmask = 0;
859 *apptagval = 0;
860 }
861}
862
863/*
864 * This function sets up buffer list for protection groups of
865 * type LPFC_PG_TYPE_NO_DIF
866 *
867 * This is usually used when the HBA is instructed to generate
868 * DIFs and insert them into data stream (or strip DIF from
869 * incoming data stream)
870 *
871 * The buffer list consists of just one protection group described
872 * below:
873 * +-------------------------+
874 * start of prot group --> | PDE_1 |
875 * +-------------------------+
876 * | Data BDE |
877 * +-------------------------+
878 * |more Data BDE's ... (opt)|
879 * +-------------------------+
880 *
881 * @sc: pointer to scsi command we're working on
882 * @bpl: pointer to buffer list for protection groups
883 * @datacnt: number of segments of data that have been dma mapped
884 *
885 * Note: Data s/g buffers have been dma mapped
886 */
887static int
888lpfc_bg_setup_bpl(struct lpfc_hba *phba, struct scsi_cmnd *sc,
889 struct ulp_bde64 *bpl, int datasegcnt)
890{
891 struct scatterlist *sgde = NULL; /* s/g data entry */
892 struct lpfc_pde *pde1 = NULL;
893 dma_addr_t physaddr;
894 int i = 0, num_bde = 0;
895 int datadir = sc->sc_data_direction;
896 int prof = LPFC_PROF_INVALID;
897 unsigned blksize;
898 uint32_t reftag;
899 uint16_t apptagmask, apptagval;
900
901 pde1 = (struct lpfc_pde *) bpl;
902 prof = lpfc_sc_to_sli_prof(sc);
903
904 if (prof == LPFC_PROF_INVALID)
905 goto out;
906
907 /* extract some info from the scsi command for PDE1*/
908 blksize = lpfc_cmd_blksize(sc);
909 lpfc_get_cmd_dif_parms(sc, &apptagmask, &apptagval, &reftag);
910
911 /* setup PDE1 with what we have */
912 lpfc_pde_set_bg_parms(pde1, LPFC_PDE1_DESCRIPTOR, prof, blksize,
913 BG_EC_STOP_ERR);
914 lpfc_pde_set_dif_parms(pde1, apptagmask, apptagval, reftag);
915
916 num_bde++;
917 bpl++;
918
919 /* assumption: caller has already run dma_map_sg on command data */
920 scsi_for_each_sg(sc, sgde, datasegcnt, i) {
921 physaddr = sg_dma_address(sgde);
922 bpl->addrLow = le32_to_cpu(putPaddrLow(physaddr));
923 bpl->addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
924 bpl->tus.f.bdeSize = sg_dma_len(sgde);
925 if (datadir == DMA_TO_DEVICE)
926 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
927 else
928 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
929 bpl->tus.w = le32_to_cpu(bpl->tus.w);
930 bpl++;
931 num_bde++;
932 }
933
934out:
935 return num_bde;
936}
937
938/*
939 * This function sets up buffer list for protection groups of
940 * type LPFC_PG_TYPE_DIF_BUF
941 *
942 * This is usually used when DIFs are in their own buffers,
943 * separate from the data. The HBA can then by instructed
944 * to place the DIFs in the outgoing stream. For read operations,
945 * The HBA could extract the DIFs and place it in DIF buffers.
946 *
947 * The buffer list for this type consists of one or more of the
948 * protection groups described below:
949 * +-------------------------+
950 * start of first prot group --> | PDE_1 |
951 * +-------------------------+
952 * | PDE_3 (Prot BDE) |
953 * +-------------------------+
954 * | Data BDE |
955 * +-------------------------+
956 * |more Data BDE's ... (opt)|
957 * +-------------------------+
958 * start of new prot group --> | PDE_1 |
959 * +-------------------------+
960 * | ... |
961 * +-------------------------+
962 *
963 * @sc: pointer to scsi command we're working on
964 * @bpl: pointer to buffer list for protection groups
965 * @datacnt: number of segments of data that have been dma mapped
966 * @protcnt: number of segment of protection data that have been dma mapped
967 *
968 * Note: It is assumed that both data and protection s/g buffers have been
969 * mapped for DMA
970 */
971static int
972lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc,
973 struct ulp_bde64 *bpl, int datacnt, int protcnt)
974{
975 struct scatterlist *sgde = NULL; /* s/g data entry */
976 struct scatterlist *sgpe = NULL; /* s/g prot entry */
977 struct lpfc_pde *pde1 = NULL;
978 struct ulp_bde64 *prot_bde = NULL;
979 dma_addr_t dataphysaddr, protphysaddr;
980 unsigned short curr_data = 0, curr_prot = 0;
981 unsigned int split_offset, protgroup_len;
982 unsigned int protgrp_blks, protgrp_bytes;
983 unsigned int remainder, subtotal;
984 int prof = LPFC_PROF_INVALID;
985 int datadir = sc->sc_data_direction;
986 unsigned char pgdone = 0, alldone = 0;
987 unsigned blksize;
988 uint32_t reftag;
989 uint16_t apptagmask, apptagval;
990 int num_bde = 0;
991
992 sgpe = scsi_prot_sglist(sc);
993 sgde = scsi_sglist(sc);
994
995 if (!sgpe || !sgde) {
996 lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
997 "9020 Invalid s/g entry: data=0x%p prot=0x%p\n",
998 sgpe, sgde);
999 return 0;
1000 }
1001
1002 prof = lpfc_sc_to_sli_prof(sc);
1003 if (prof == LPFC_PROF_INVALID)
1004 goto out;
1005
1006 /* extract some info from the scsi command for PDE1*/
1007 blksize = lpfc_cmd_blksize(sc);
1008 lpfc_get_cmd_dif_parms(sc, &apptagmask, &apptagval, &reftag);
1009
1010 split_offset = 0;
1011 do {
1012 /* setup the first PDE_1 */
1013 pde1 = (struct lpfc_pde *) bpl;
1014
1015 lpfc_pde_set_bg_parms(pde1, LPFC_PDE1_DESCRIPTOR, prof, blksize,
1016 BG_EC_STOP_ERR);
1017 lpfc_pde_set_dif_parms(pde1, apptagmask, apptagval, reftag);
1018
1019 num_bde++;
1020 bpl++;
1021
1022 /* setup the first BDE that points to protection buffer */
1023 prot_bde = (struct ulp_bde64 *) bpl;
1024 protphysaddr = sg_dma_address(sgpe);
1025 prot_bde->addrLow = le32_to_cpu(putPaddrLow(protphysaddr));
1026 prot_bde->addrHigh = le32_to_cpu(putPaddrHigh(protphysaddr));
1027 protgroup_len = sg_dma_len(sgpe);
1028
1029
1030 /* must be integer multiple of the DIF block length */
1031 BUG_ON(protgroup_len % 8);
1032
1033 protgrp_blks = protgroup_len / 8;
1034 protgrp_bytes = protgrp_blks * blksize;
1035
1036 prot_bde->tus.f.bdeSize = protgroup_len;
1037 if (datadir == DMA_TO_DEVICE)
1038 prot_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
1039 else
1040 prot_bde->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
1041 prot_bde->tus.w = le32_to_cpu(bpl->tus.w);
1042
1043 curr_prot++;
1044 num_bde++;
1045
1046 /* setup BDE's for data blocks associated with DIF data */
1047 pgdone = 0;
1048 subtotal = 0; /* total bytes processed for current prot grp */
1049 while (!pgdone) {
1050 if (!sgde) {
1051 printk(KERN_ERR "%s Invalid data segment\n",
1052 __func__);
1053 return 0;
1054 }
1055 bpl++;
1056 dataphysaddr = sg_dma_address(sgde) + split_offset;
1057 bpl->addrLow = le32_to_cpu(putPaddrLow(dataphysaddr));
1058 bpl->addrHigh = le32_to_cpu(putPaddrHigh(dataphysaddr));
1059
1060 remainder = sg_dma_len(sgde) - split_offset;
1061
1062 if ((subtotal + remainder) <= protgrp_bytes) {
1063 /* we can use this whole buffer */
1064 bpl->tus.f.bdeSize = remainder;
1065 split_offset = 0;
1066
1067 if ((subtotal + remainder) == protgrp_bytes)
1068 pgdone = 1;
1069 } else {
1070 /* must split this buffer with next prot grp */
1071 bpl->tus.f.bdeSize = protgrp_bytes - subtotal;
1072 split_offset += bpl->tus.f.bdeSize;
1073 }
1074
1075 subtotal += bpl->tus.f.bdeSize;
1076
1077 if (datadir == DMA_TO_DEVICE)
1078 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64;
1079 else
1080 bpl->tus.f.bdeFlags = BUFF_TYPE_BDE_64I;
1081 bpl->tus.w = le32_to_cpu(bpl->tus.w);
1082
1083 num_bde++;
1084 curr_data++;
1085
1086 if (split_offset)
1087 break;
1088
1089 /* Move to the next s/g segment if possible */
1090 sgde = sg_next(sgde);
1091 }
1092
1093 /* are we done ? */
1094 if (curr_prot == protcnt) {
1095 alldone = 1;
1096 } else if (curr_prot < protcnt) {
1097 /* advance to next prot buffer */
1098 sgpe = sg_next(sgpe);
1099 bpl++;
1100
1101 /* update the reference tag */
1102 reftag += protgrp_blks;
1103 } else {
1104 /* if we're here, we have a bug */
1105 printk(KERN_ERR "BLKGRD: bug in %s\n", __func__);
1106 }
1107
1108 } while (!alldone);
1109
1110out:
1111
1112
1113 return num_bde;
1114}
1115/*
1116 * Given a SCSI command that supports DIF, determine composition of protection
1117 * groups involved in setting up buffer lists
1118 *
1119 * Returns:
1120 * for DIF (for both read and write)
1121 * */
1122static int
1123lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc)
1124{
1125 int ret = LPFC_PG_TYPE_INVALID;
1126 unsigned char op = scsi_get_prot_op(sc);
1127
1128 switch (op) {
1129 case SCSI_PROT_READ_STRIP:
1130 case SCSI_PROT_WRITE_INSERT:
1131 ret = LPFC_PG_TYPE_NO_DIF;
1132 break;
1133 case SCSI_PROT_READ_INSERT:
1134 case SCSI_PROT_WRITE_STRIP:
1135 case SCSI_PROT_READ_PASS:
1136 case SCSI_PROT_WRITE_PASS:
1137 case SCSI_PROT_WRITE_CONVERT:
1138 case SCSI_PROT_READ_CONVERT:
1139 ret = LPFC_PG_TYPE_DIF_BUF;
1140 break;
1141 default:
1142 lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
1143 "9021 Unsupported protection op:%d\n", op);
1144 break;
1145 }
1146
1147 return ret;
1148}
1149
1150/*
1151 * This is the protection/DIF aware version of
1152 * lpfc_scsi_prep_dma_buf(). It may be a good idea to combine the
1153 * two functions eventually, but for now, it's here
1154 */
1155static int
1156lpfc_bg_scsi_prep_dma_buf(struct lpfc_hba *phba,
1157 struct lpfc_scsi_buf *lpfc_cmd)
1158{
1159 struct scsi_cmnd *scsi_cmnd = lpfc_cmd->pCmd;
1160 struct fcp_cmnd *fcp_cmnd = lpfc_cmd->fcp_cmnd;
1161 struct ulp_bde64 *bpl = lpfc_cmd->fcp_bpl;
1162 IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb;
1163 uint32_t num_bde = 0;
1164 int datasegcnt, protsegcnt, datadir = scsi_cmnd->sc_data_direction;
1165 int prot_group_type = 0;
1166 int diflen, fcpdl;
1167 unsigned blksize;
1168
1169 /*
1170 * Start the lpfc command prep by bumping the bpl beyond fcp_cmnd
1171 * fcp_rsp regions to the first data bde entry
1172 */
1173 bpl += 2;
1174 if (scsi_sg_count(scsi_cmnd)) {
1175 /*
1176 * The driver stores the segment count returned from pci_map_sg
1177 * because this a count of dma-mappings used to map the use_sg
1178 * pages. They are not guaranteed to be the same for those
1179 * architectures that implement an IOMMU.
1180 */
1181 datasegcnt = dma_map_sg(&phba->pcidev->dev,
1182 scsi_sglist(scsi_cmnd),
1183 scsi_sg_count(scsi_cmnd), datadir);
1184 if (unlikely(!datasegcnt))
1185 return 1;
1186
1187 lpfc_cmd->seg_cnt = datasegcnt;
1188 if (lpfc_cmd->seg_cnt > phba->cfg_sg_seg_cnt) {
1189 printk(KERN_ERR "%s: Too many sg segments from "
1190 "dma_map_sg. Config %d, seg_cnt %d\n",
1191 __func__, phba->cfg_sg_seg_cnt,
1192 lpfc_cmd->seg_cnt);
1193 scsi_dma_unmap(scsi_cmnd);
1194 return 1;
1195 }
1196
1197 prot_group_type = lpfc_prot_group_type(phba, scsi_cmnd);
1198
1199 switch (prot_group_type) {
1200 case LPFC_PG_TYPE_NO_DIF:
1201 num_bde = lpfc_bg_setup_bpl(phba, scsi_cmnd, bpl,
1202 datasegcnt);
1203 /* we shoud have 2 or more entries in buffer list */
1204 if (num_bde < 2)
1205 goto err;
1206 break;
1207 case LPFC_PG_TYPE_DIF_BUF:{
1208 /*
1209 * This type indicates that protection buffers are
1210 * passed to the driver, so that needs to be prepared
1211 * for DMA
1212 */
1213 protsegcnt = dma_map_sg(&phba->pcidev->dev,
1214 scsi_prot_sglist(scsi_cmnd),
1215 scsi_prot_sg_count(scsi_cmnd), datadir);
1216 if (unlikely(!protsegcnt)) {
1217 scsi_dma_unmap(scsi_cmnd);
1218 return 1;
1219 }
1220
1221 lpfc_cmd->prot_seg_cnt = protsegcnt;
1222 if (lpfc_cmd->prot_seg_cnt
1223 > phba->cfg_prot_sg_seg_cnt) {
1224 printk(KERN_ERR "%s: Too many prot sg segments "
1225 "from dma_map_sg. Config %d,"
1226 "prot_seg_cnt %d\n", __func__,
1227 phba->cfg_prot_sg_seg_cnt,
1228 lpfc_cmd->prot_seg_cnt);
1229 dma_unmap_sg(&phba->pcidev->dev,
1230 scsi_prot_sglist(scsi_cmnd),
1231 scsi_prot_sg_count(scsi_cmnd),
1232 datadir);
1233 scsi_dma_unmap(scsi_cmnd);
1234 return 1;
1235 }
1236
1237 num_bde = lpfc_bg_setup_bpl_prot(phba, scsi_cmnd, bpl,
1238 datasegcnt, protsegcnt);
1239 /* we shoud have 3 or more entries in buffer list */
1240 if (num_bde < 3)
1241 goto err;
1242 break;
1243 }
1244 case LPFC_PG_TYPE_INVALID:
1245 default:
1246 lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
1247 "9022 Unexpected protection group %i\n",
1248 prot_group_type);
1249 return 1;
1250 }
1251 }
1252
1253 /*
1254 * Finish initializing those IOCB fields that are dependent on the
1255 * scsi_cmnd request_buffer. Note that the bdeSize is explicitly
1256 * reinitialized since all iocb memory resources are used many times
1257 * for transmit, receive, and continuation bpl's.
1258 */
1259 iocb_cmd->un.fcpi64.bdl.bdeSize = (2 * sizeof(struct ulp_bde64));
1260 iocb_cmd->un.fcpi64.bdl.bdeSize += (num_bde * sizeof(struct ulp_bde64));
1261 iocb_cmd->ulpBdeCount = 1;
1262 iocb_cmd->ulpLe = 1;
1263
1264 fcpdl = scsi_bufflen(scsi_cmnd);
1265
1266 if (scsi_get_prot_type(scsi_cmnd) == SCSI_PROT_DIF_TYPE1) {
1267 /*
1268 * We are in DIF Type 1 mode
1269 * Every data block has a 8 byte DIF (trailer)
1270 * attached to it. Must ajust FCP data length
1271 */
1272 blksize = lpfc_cmd_blksize(scsi_cmnd);
1273 diflen = (fcpdl / blksize) * 8;
1274 fcpdl += diflen;
1275 }
1276 fcp_cmnd->fcpDl = be32_to_cpu(fcpdl);
1277
1278 /*
1279 * Due to difference in data length between DIF/non-DIF paths,
1280 * we need to set word 4 of IOCB here
1281 */
1282 iocb_cmd->un.fcpi.fcpi_parm = fcpdl;
1283
1284 return 0;
1285err:
1286 lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
1287 "9023 Could not setup all needed BDE's"
1288 "prot_group_type=%d, num_bde=%d\n",
1289 prot_group_type, num_bde);
1290 return 1;
1291}
1292
1293/*
1294 * This function checks for BlockGuard errors detected by
1295 * the HBA. In case of errors, the ASC/ASCQ fields in the
1296 * sense buffer will be set accordingly, paired with
1297 * ILLEGAL_REQUEST to signal to the kernel that the HBA
1298 * detected corruption.
1299 *
1300 * Returns:
1301 * 0 - No error found
1302 * 1 - BlockGuard error found
1303 * -1 - Internal error (bad profile, ...etc)
1304 */
1305static int
1306lpfc_parse_bg_err(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd,
1307 struct lpfc_iocbq *pIocbOut)
1308{
1309 struct scsi_cmnd *cmd = lpfc_cmd->pCmd;
1310 struct sli3_bg_fields *bgf = &pIocbOut->iocb.unsli3.sli3_bg;
1311 int ret = 0;
1312 uint32_t bghm = bgf->bghm;
1313 uint32_t bgstat = bgf->bgstat;
1314 uint64_t failing_sector = 0;
1315
1316 printk(KERN_ERR "BG ERROR in cmd 0x%x lba 0x%llx blk cnt 0x%lx "
1317 "bgstat=0x%x bghm=0x%x\n",
1318 cmd->cmnd[0], (u64)scsi_get_lba(cmd),
1319 cmd->request->nr_sectors, bgstat, bghm);
1320
1321 spin_lock(&_dump_buf_lock);
1322 if (!_dump_buf_done) {
1323 printk(KERN_ERR "Saving Data for %u blocks to debugfs\n",
1324 (cmd->cmnd[7] << 8 | cmd->cmnd[8]));
1325 lpfc_debug_save_data(cmd);
1326
1327 /* If we have a prot sgl, save the DIF buffer */
1328 if (lpfc_prot_group_type(phba, cmd) ==
1329 LPFC_PG_TYPE_DIF_BUF) {
1330 printk(KERN_ERR "Saving DIF for %u blocks to debugfs\n",
1331 (cmd->cmnd[7] << 8 | cmd->cmnd[8]));
1332 lpfc_debug_save_dif(cmd);
1333 }
1334
1335 _dump_buf_done = 1;
1336 }
1337 spin_unlock(&_dump_buf_lock);
1338
1339 if (lpfc_bgs_get_invalid_prof(bgstat)) {
1340 cmd->result = ScsiResult(DID_ERROR, 0);
1341 printk(KERN_ERR "Invalid BlockGuard profile. bgstat:0x%x\n",
1342 bgstat);
1343 ret = (-1);
1344 goto out;
1345 }
1346
1347 if (lpfc_bgs_get_uninit_dif_block(bgstat)) {
1348 cmd->result = ScsiResult(DID_ERROR, 0);
1349 printk(KERN_ERR "Invalid BlockGuard DIF Block. bgstat:0x%x\n",
1350 bgstat);
1351 ret = (-1);
1352 goto out;
1353 }
1354
1355 if (lpfc_bgs_get_guard_err(bgstat)) {
1356 ret = 1;
1357
1358 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1359 0x10, 0x1);
1360 cmd->result = (DRIVER_SENSE|SUGGEST_DIE) << 24
1361 | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION);
1362 phba->bg_guard_err_cnt++;
1363 printk(KERN_ERR "BLKGRD: guard_tag error\n");
1364 }
1365
1366 if (lpfc_bgs_get_reftag_err(bgstat)) {
1367 ret = 1;
1368
1369 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1370 0x10, 0x3);
1371 cmd->result = (DRIVER_SENSE|SUGGEST_DIE) << 24
1372 | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION);
1373
1374 phba->bg_reftag_err_cnt++;
1375 printk(KERN_ERR "BLKGRD: ref_tag error\n");
1376 }
1377
1378 if (lpfc_bgs_get_apptag_err(bgstat)) {
1379 ret = 1;
1380
1381 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1382 0x10, 0x2);
1383 cmd->result = (DRIVER_SENSE|SUGGEST_DIE) << 24
1384 | ScsiResult(DID_ABORT, SAM_STAT_CHECK_CONDITION);
1385
1386 phba->bg_apptag_err_cnt++;
1387 printk(KERN_ERR "BLKGRD: app_tag error\n");
1388 }
1389
1390 if (lpfc_bgs_get_hi_water_mark_present(bgstat)) {
1391 /*
1392 * setup sense data descriptor 0 per SPC-4 as an information
1393 * field, and put the failing LBA in it
1394 */
1395 cmd->sense_buffer[8] = 0; /* Information */
1396 cmd->sense_buffer[9] = 0xa; /* Add. length */
1397 do_div(bghm, cmd->device->sector_size);
1398
1399 failing_sector = scsi_get_lba(cmd);
1400 failing_sector += bghm;
1401
1402 put_unaligned_be64(failing_sector, &cmd->sense_buffer[10]);
1403 }
1404
1405 if (!ret) {
1406 /* No error was reported - problem in FW? */
1407 cmd->result = ScsiResult(DID_ERROR, 0);
1408 printk(KERN_ERR "BLKGRD: no errors reported!\n");
1409 }
1410
1411out:
1412 return ret;
1413}
1414
667/** 1415/**
668 * lpfc_send_scsi_error_event: Posts an event when there is SCSI error. 1416 * lpfc_send_scsi_error_event: Posts an event when there is SCSI error.
669 * @phba: Pointer to hba context object. 1417 * @phba: Pointer to hba context object.
@@ -775,6 +1523,10 @@ lpfc_scsi_unprep_dma_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * psb)
775 */ 1523 */
776 if (psb->seg_cnt > 0) 1524 if (psb->seg_cnt > 0)
777 scsi_dma_unmap(psb->pCmd); 1525 scsi_dma_unmap(psb->pCmd);
1526 if (psb->prot_seg_cnt > 0)
1527 dma_unmap_sg(&phba->pcidev->dev, scsi_prot_sglist(psb->pCmd),
1528 scsi_prot_sg_count(psb->pCmd),
1529 psb->pCmd->sc_data_direction);
778} 1530}
779 1531
780/** 1532/**
@@ -828,7 +1580,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
828 logit = LOG_FCP; 1580 logit = LOG_FCP;
829 1581
830 lpfc_printf_vlog(vport, KERN_WARNING, logit, 1582 lpfc_printf_vlog(vport, KERN_WARNING, logit,
831 "0730 FCP command x%x failed: x%x SNS x%x x%x " 1583 "9024 FCP command x%x failed: x%x SNS x%x x%x "
832 "Data: x%x x%x x%x x%x x%x\n", 1584 "Data: x%x x%x x%x x%x x%x\n",
833 cmnd->cmnd[0], scsi_status, 1585 cmnd->cmnd[0], scsi_status,
834 be32_to_cpu(*lp), be32_to_cpu(*(lp + 3)), resp_info, 1586 be32_to_cpu(*lp), be32_to_cpu(*(lp + 3)), resp_info,
@@ -851,7 +1603,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
851 scsi_set_resid(cmnd, be32_to_cpu(fcprsp->rspResId)); 1603 scsi_set_resid(cmnd, be32_to_cpu(fcprsp->rspResId));
852 1604
853 lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, 1605 lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
854 "0716 FCP Read Underrun, expected %d, " 1606 "9025 FCP Read Underrun, expected %d, "
855 "residual %d Data: x%x x%x x%x\n", 1607 "residual %d Data: x%x x%x x%x\n",
856 be32_to_cpu(fcpcmd->fcpDl), 1608 be32_to_cpu(fcpcmd->fcpDl),
857 scsi_get_resid(cmnd), fcpi_parm, cmnd->cmnd[0], 1609 scsi_get_resid(cmnd), fcpi_parm, cmnd->cmnd[0],
@@ -867,7 +1619,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
867 (scsi_get_resid(cmnd) != fcpi_parm)) { 1619 (scsi_get_resid(cmnd) != fcpi_parm)) {
868 lpfc_printf_vlog(vport, KERN_WARNING, 1620 lpfc_printf_vlog(vport, KERN_WARNING,
869 LOG_FCP | LOG_FCP_ERROR, 1621 LOG_FCP | LOG_FCP_ERROR,
870 "0735 FCP Read Check Error " 1622 "9026 FCP Read Check Error "
871 "and Underrun Data: x%x x%x x%x x%x\n", 1623 "and Underrun Data: x%x x%x x%x x%x\n",
872 be32_to_cpu(fcpcmd->fcpDl), 1624 be32_to_cpu(fcpcmd->fcpDl),
873 scsi_get_resid(cmnd), fcpi_parm, 1625 scsi_get_resid(cmnd), fcpi_parm,
@@ -886,7 +1638,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
886 (scsi_bufflen(cmnd) - scsi_get_resid(cmnd) 1638 (scsi_bufflen(cmnd) - scsi_get_resid(cmnd)
887 < cmnd->underflow)) { 1639 < cmnd->underflow)) {
888 lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP, 1640 lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
889 "0717 FCP command x%x residual " 1641 "9027 FCP command x%x residual "
890 "underrun converted to error " 1642 "underrun converted to error "
891 "Data: x%x x%x x%x\n", 1643 "Data: x%x x%x x%x\n",
892 cmnd->cmnd[0], scsi_bufflen(cmnd), 1644 cmnd->cmnd[0], scsi_bufflen(cmnd),
@@ -895,7 +1647,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
895 } 1647 }
896 } else if (resp_info & RESID_OVER) { 1648 } else if (resp_info & RESID_OVER) {
897 lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, 1649 lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
898 "0720 FCP command x%x residual overrun error. " 1650 "9028 FCP command x%x residual overrun error. "
899 "Data: x%x x%x \n", cmnd->cmnd[0], 1651 "Data: x%x x%x \n", cmnd->cmnd[0],
900 scsi_bufflen(cmnd), scsi_get_resid(cmnd)); 1652 scsi_bufflen(cmnd), scsi_get_resid(cmnd));
901 host_status = DID_ERROR; 1653 host_status = DID_ERROR;
@@ -907,7 +1659,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
907 } else if ((scsi_status == SAM_STAT_GOOD) && fcpi_parm && 1659 } else if ((scsi_status == SAM_STAT_GOOD) && fcpi_parm &&
908 (cmnd->sc_data_direction == DMA_FROM_DEVICE)) { 1660 (cmnd->sc_data_direction == DMA_FROM_DEVICE)) {
909 lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR, 1661 lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP | LOG_FCP_ERROR,
910 "0734 FCP Read Check Error Data: " 1662 "9029 FCP Read Check Error Data: "
911 "x%x x%x x%x x%x\n", 1663 "x%x x%x x%x x%x\n",
912 be32_to_cpu(fcpcmd->fcpDl), 1664 be32_to_cpu(fcpcmd->fcpDl),
913 be32_to_cpu(fcprsp->rspResId), 1665 be32_to_cpu(fcprsp->rspResId),
@@ -960,7 +1712,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
960 lpfc_cmd->status = IOSTAT_DEFAULT; 1712 lpfc_cmd->status = IOSTAT_DEFAULT;
961 1713
962 lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP, 1714 lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
963 "0729 FCP cmd x%x failed <%d/%d> " 1715 "9030 FCP cmd x%x failed <%d/%d> "
964 "status: x%x result: x%x Data: x%x x%x\n", 1716 "status: x%x result: x%x Data: x%x x%x\n",
965 cmd->cmnd[0], 1717 cmd->cmnd[0],
966 cmd->device ? cmd->device->id : 0xffff, 1718 cmd->device ? cmd->device->id : 0xffff,
@@ -1008,7 +1760,28 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
1008 lpfc_cmd->result == IOERR_ABORT_REQUESTED) { 1760 lpfc_cmd->result == IOERR_ABORT_REQUESTED) {
1009 cmd->result = ScsiResult(DID_REQUEUE, 0); 1761 cmd->result = ScsiResult(DID_REQUEUE, 0);
1010 break; 1762 break;
1011 } /* else: fall through */ 1763 }
1764
1765 if ((lpfc_cmd->result == IOERR_RX_DMA_FAILED ||
1766 lpfc_cmd->result == IOERR_TX_DMA_FAILED) &&
1767 pIocbOut->iocb.unsli3.sli3_bg.bgstat) {
1768 if (scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
1769 /*
1770 * This is a response for a BG enabled
1771 * cmd. Parse BG error
1772 */
1773 lpfc_parse_bg_err(phba, lpfc_cmd,
1774 pIocbOut);
1775 break;
1776 } else {
1777 lpfc_printf_vlog(vport, KERN_WARNING,
1778 LOG_BG,
1779 "9031 non-zero BGSTAT "
1780 "on unprotected cmd");
1781 }
1782 }
1783
1784 /* else: fall through */
1012 default: 1785 default:
1013 cmd->result = ScsiResult(DID_ERROR, 0); 1786 cmd->result = ScsiResult(DID_ERROR, 0);
1014 break; 1787 break;
@@ -1243,7 +2016,6 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
1243 } else { 2016 } else {
1244 iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR; 2017 iocb_cmd->ulpCommand = CMD_FCP_IREAD64_CR;
1245 iocb_cmd->ulpPU = PARM_READ_CHECK; 2018 iocb_cmd->ulpPU = PARM_READ_CHECK;
1246 iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd);
1247 fcp_cmnd->fcpCntl3 = READ_DATA; 2019 fcp_cmnd->fcpCntl3 = READ_DATA;
1248 phba->fc4InputRequests++; 2020 phba->fc4InputRequests++;
1249 } 2021 }
@@ -1254,7 +2026,8 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
1254 fcp_cmnd->fcpCntl3 = 0; 2026 fcp_cmnd->fcpCntl3 = 0;
1255 phba->fc4ControlRequests++; 2027 phba->fc4ControlRequests++;
1256 } 2028 }
1257 if (phba->sli_rev == 3) 2029 if (phba->sli_rev == 3 &&
2030 !(phba->sli3_options & LPFC_SLI3_BG_ENABLED))
1258 lpfc_fcpcmd_to_iocb(iocb_cmd->unsli3.fcp_ext.icd, fcp_cmnd); 2031 lpfc_fcpcmd_to_iocb(iocb_cmd->unsli3.fcp_ext.icd, fcp_cmnd);
1259 /* 2032 /*
1260 * Finish initializing those IOCB fields that are independent 2033 * Finish initializing those IOCB fields that are independent
@@ -1312,7 +2085,8 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport,
1312 memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd)); 2085 memset(fcp_cmnd, 0, sizeof(struct fcp_cmnd));
1313 int_to_scsilun(lun, &fcp_cmnd->fcp_lun); 2086 int_to_scsilun(lun, &fcp_cmnd->fcp_lun);
1314 fcp_cmnd->fcpCntl2 = task_mgmt_cmd; 2087 fcp_cmnd->fcpCntl2 = task_mgmt_cmd;
1315 if (vport->phba->sli_rev == 3) 2088 if (vport->phba->sli_rev == 3 &&
2089 !(vport->phba->sli3_options & LPFC_SLI3_BG_ENABLED))
1316 lpfc_fcpcmd_to_iocb(piocb->unsli3.fcp_ext.icd, fcp_cmnd); 2090 lpfc_fcpcmd_to_iocb(piocb->unsli3.fcp_ext.icd, fcp_cmnd);
1317 piocb->ulpCommand = CMD_FCP_ICMND64_CR; 2091 piocb->ulpCommand = CMD_FCP_ICMND64_CR;
1318 piocb->ulpContext = ndlp->nlp_rpi; 2092 piocb->ulpContext = ndlp->nlp_rpi;
@@ -1541,6 +2315,17 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
1541 goto out_fail_command; 2315 goto out_fail_command;
1542 } 2316 }
1543 2317
2318 if (!(phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
2319 scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) {
2320
2321 printk(KERN_ERR "BLKGRD ERROR: rcvd protected cmd:%02x op:%02x "
2322 "str=%s without registering for BlockGuard - "
2323 "Rejecting command\n",
2324 cmnd->cmnd[0], scsi_get_prot_op(cmnd),
2325 dif_op_str[scsi_get_prot_op(cmnd)]);
2326 goto out_fail_command;
2327 }
2328
1544 /* 2329 /*
1545 * Catch race where our node has transitioned, but the 2330 * Catch race where our node has transitioned, but the
1546 * transport is still transitioning. 2331 * transport is still transitioning.
@@ -1574,7 +2359,64 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
1574 cmnd->host_scribble = (unsigned char *)lpfc_cmd; 2359 cmnd->host_scribble = (unsigned char *)lpfc_cmd;
1575 cmnd->scsi_done = done; 2360 cmnd->scsi_done = done;
1576 2361
1577 err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd); 2362 if (scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) {
2363 lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
2364 "9033 BLKGRD: rcvd protected cmd:%02x op:%02x "
2365 "str=%s\n",
2366 cmnd->cmnd[0], scsi_get_prot_op(cmnd),
2367 dif_op_str[scsi_get_prot_op(cmnd)]);
2368 lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
2369 "9034 BLKGRD: CDB: %02x %02x %02x %02x %02x "
2370 "%02x %02x %02x %02x %02x \n",
2371 cmnd->cmnd[0], cmnd->cmnd[1], cmnd->cmnd[2],
2372 cmnd->cmnd[3], cmnd->cmnd[4], cmnd->cmnd[5],
2373 cmnd->cmnd[6], cmnd->cmnd[7], cmnd->cmnd[8],
2374 cmnd->cmnd[9]);
2375 if (cmnd->cmnd[0] == READ_10)
2376 lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
2377 "9035 BLKGRD: READ @ sector %llu, "
2378 "count %lu\n",
2379 (u64)scsi_get_lba(cmnd),
2380 cmnd->request->nr_sectors);
2381 else if (cmnd->cmnd[0] == WRITE_10)
2382 lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
2383 "9036 BLKGRD: WRITE @ sector %llu, "
2384 "count %lu cmd=%p\n",
2385 (u64)scsi_get_lba(cmnd),
2386 cmnd->request->nr_sectors,
2387 cmnd);
2388
2389 err = lpfc_bg_scsi_prep_dma_buf(phba, lpfc_cmd);
2390 } else {
2391 lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
2392 "9038 BLKGRD: rcvd unprotected cmd:%02x op:%02x"
2393 " str=%s\n",
2394 cmnd->cmnd[0], scsi_get_prot_op(cmnd),
2395 dif_op_str[scsi_get_prot_op(cmnd)]);
2396 lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
2397 "9039 BLKGRD: CDB: %02x %02x %02x %02x %02x "
2398 "%02x %02x %02x %02x %02x \n",
2399 cmnd->cmnd[0], cmnd->cmnd[1], cmnd->cmnd[2],
2400 cmnd->cmnd[3], cmnd->cmnd[4], cmnd->cmnd[5],
2401 cmnd->cmnd[6], cmnd->cmnd[7], cmnd->cmnd[8],
2402 cmnd->cmnd[9]);
2403 if (cmnd->cmnd[0] == READ_10)
2404 lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
2405 "9040 dbg: READ @ sector %llu, "
2406 "count %lu\n", (u64)scsi_get_lba(cmnd),
2407 cmnd->request->nr_sectors);
2408 else if (cmnd->cmnd[0] == WRITE_10)
2409 lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
2410 "9041 dbg: WRITE @ sector %llu, "
2411 "count %lu cmd=%p\n",
2412 (u64)scsi_get_lba(cmnd),
2413 cmnd->request->nr_sectors, cmnd);
2414 else
2415 lpfc_printf_vlog(vport, KERN_WARNING, LOG_BG,
2416 "9042 dbg: parser not implemented\n");
2417 err = lpfc_scsi_prep_dma_buf(phba, lpfc_cmd);
2418 }
2419
1578 if (err) 2420 if (err)
1579 goto out_host_busy_free_buf; 2421 goto out_host_busy_free_buf;
1580 2422
diff --git a/drivers/scsi/lpfc/lpfc_scsi.h b/drivers/scsi/lpfc/lpfc_scsi.h
index 437f182e2322..c7c440d5fa29 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.h
+++ b/drivers/scsi/lpfc/lpfc_scsi.h
@@ -124,6 +124,8 @@ struct lpfc_scsi_buf {
124 uint32_t seg_cnt; /* Number of scatter-gather segments returned by 124 uint32_t seg_cnt; /* Number of scatter-gather segments returned by
125 * dma_map_sg. The driver needs this for calls 125 * dma_map_sg. The driver needs this for calls
126 * to dma_unmap_sg. */ 126 * to dma_unmap_sg. */
127 uint32_t prot_seg_cnt; /* seg_cnt's counterpart for protection data */
128
127 dma_addr_t nonsg_phys; /* Non scatter-gather physical address. */ 129 dma_addr_t nonsg_phys; /* Non scatter-gather physical address. */
128 130
129 /* 131 /*
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 632feee233ca..01dfdc8696f8 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -542,6 +542,7 @@ lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
542 */ 542 */
543 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; 543 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
544 544
545
545 if (pring->ringno == LPFC_ELS_RING) { 546 if (pring->ringno == LPFC_ELS_RING) {
546 lpfc_debugfs_slow_ring_trc(phba, 547 lpfc_debugfs_slow_ring_trc(phba,
547 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x", 548 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
@@ -3044,7 +3045,8 @@ lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
3044 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED | 3045 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
3045 LPFC_SLI3_HBQ_ENABLED | 3046 LPFC_SLI3_HBQ_ENABLED |
3046 LPFC_SLI3_CRP_ENABLED | 3047 LPFC_SLI3_CRP_ENABLED |
3047 LPFC_SLI3_INB_ENABLED); 3048 LPFC_SLI3_INB_ENABLED |
3049 LPFC_SLI3_BG_ENABLED);
3048 if (rc != MBX_SUCCESS) { 3050 if (rc != MBX_SUCCESS) {
3049 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, 3051 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3050 "0442 Adapter failed to init, mbxCmd x%x " 3052 "0442 Adapter failed to init, mbxCmd x%x "
@@ -3089,6 +3091,15 @@ lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
3089 phba->inb_ha_copy = NULL; 3091 phba->inb_ha_copy = NULL;
3090 phba->inb_counter = NULL; 3092 phba->inb_counter = NULL;
3091 } 3093 }
3094
3095 if (phba->cfg_enable_bg) {
3096 if (pmb->mb.un.varCfgPort.gbg)
3097 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
3098 else
3099 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3100 "0443 Adapter did not grant "
3101 "BlockGuard\n");
3102 }
3092 } else { 3103 } else {
3093 phba->hbq_get = NULL; 3104 phba->hbq_get = NULL;
3094 phba->port_gp = phba->mbox->us.s2.port; 3105 phba->port_gp = phba->mbox->us.s2.port;
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-23 11:13:23 -0500