The checksum format is orthogonal to whether the protection information
is being passed on beyond the HBA or not. It is perfectly valid to use
a non-T10 CRC with WRITE_STRIP and READ_INSERT.
Consequently it no longer makes sense to explicitly refer to the
conversion in the protection operation. Update sd_dif and lpfc
accordingly.
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
---
drivers/scsi/lpfc/lpfc_scsi.c | 15 +++------------
drivers/scsi/sd_dif.c | 20 ++++----------------
include/scsi/scsi_cmnd.h | 4 ----
3 files changed, 7 insertions(+), 32 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index da59c4f..ad75e19 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -56,8 +56,6 @@ static char *dif_op_str[] = {
"SCSI_PROT_WRITE_INSERT",
"SCSI_PROT_READ_PASS",
"SCSI_PROT_WRITE_PASS",
- "SCSI_PROT_READ_CONVERT",
- "SCSI_PROT_WRITE_CONVERT"
};
static void
lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb);
@@ -1131,13 +1129,11 @@ lpfc_sc_to_sli_prof(struct scsi_cmnd *sc)
ret_prof = LPFC_PROF_A1;
break;
- case SCSI_PROT_READ_CONVERT:
- case SCSI_PROT_WRITE_CONVERT:
+ case SCSI_PROT_READ_PASS:
+ case SCSI_PROT_WRITE_PASS:
ret_prof = LPFC_PROF_AST1;
break;
- case SCSI_PROT_READ_PASS:
- case SCSI_PROT_WRITE_PASS:
case SCSI_PROT_NORMAL:
default:
printk(KERN_ERR "Bad op/guard:%d/%d combination\n",
@@ -1157,8 +1153,6 @@ lpfc_sc_to_sli_prof(struct scsi_cmnd *sc)
ret_prof = LPFC_PROF_C1;
break;
- case SCSI_PROT_READ_CONVERT:
- case SCSI_PROT_WRITE_CONVERT:
case SCSI_PROT_READ_INSERT:
case SCSI_PROT_WRITE_STRIP:
case SCSI_PROT_NORMAL:
@@ -1209,8 +1203,7 @@ lpfc_get_cmd_dif_parms(struct scsi_cmnd *sc, uint16_t *apptagmask,
static int cnt;
if (protcnt && (op == SCSI_PROT_WRITE_STRIP ||
- op == SCSI_PROT_WRITE_PASS ||
- op == SCSI_PROT_WRITE_CONVERT)) {
+ op == SCSI_PROT_WRITE_PASS)) {
cnt++;
spt = page_address(sg_page(scsi_prot_sglist(sc))) +
@@ -1501,8 +1494,6 @@ lpfc_prot_group_type(struct lpfc_hba *phba, struct scsi_cmnd *sc)
case SCSI_PROT_WRITE_STRIP:
case SCSI_PROT_READ_PASS:
case SCSI_PROT_WRITE_PASS:
- case SCSI_PROT_WRITE_CONVERT:
- case SCSI_PROT_READ_CONVERT:
ret = LPFC_PG_TYPE_DIF_BUF;
break;
default:
diff --git a/drivers/scsi/sd_dif.c b/drivers/scsi/sd_dif.c
index 82f14a9..84224dd 100644
--- a/drivers/scsi/sd_dif.c
+++ b/drivers/scsi/sd_dif.c
@@ -364,15 +364,9 @@ void sd_dif_config_host(struct scsi_disk *sdkp)
*/
void sd_dif_op(struct scsi_cmnd *scmd, unsigned int dif, unsigned int dix, unsigned int type)
{
- int csum_convert, prot_op;
+ int prot_op;
- prot_op = 0;
-
- /* Convert checksum? */
- if (scsi_host_get_guard(scmd->device->host) != SHOST_DIX_GUARD_CRC)
- csum_convert = 1;
- else
- csum_convert = 0;
+ prot_op = SCSI_PROT_NORMAL;
BUG_ON(dif && (scmd->cmnd[0] == READ_6 || scmd->cmnd[0] == WRITE_6));
@@ -382,10 +376,7 @@ void sd_dif_op(struct scsi_cmnd *scmd, unsigned int dif, unsigned int dix, unsig
case READ_12:
case READ_16:
if (dif && dix)
- if (csum_convert)
- prot_op = SCSI_PROT_READ_CONVERT;
- else
- prot_op = SCSI_PROT_READ_PASS;
+ prot_op = SCSI_PROT_READ_PASS;
else if (dif && !dix)
prot_op = SCSI_PROT_READ_STRIP;
else if (!dif && dix)
@@ -398,10 +389,7 @@ void sd_dif_op(struct scsi_cmnd *scmd, unsigned int dif, unsigned int dix, unsig
case WRITE_12:
case WRITE_16:
if (dif && dix)
- if (csum_convert)
- prot_op = SCSI_PROT_WRITE_CONVERT;
- else
- prot_op = SCSI_PROT_WRITE_PASS;
+ prot_op = SCSI_PROT_WRITE_PASS;
else if (dif && !dix)
prot_op = SCSI_PROT_WRITE_INSERT;
else if (!dif && dix)
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 3878d1d..a5e885a 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -229,10 +229,6 @@ enum scsi_prot_operations {
/* OS-HBA: Protected, HBA-Target: Protected */
SCSI_PROT_READ_PASS,
SCSI_PROT_WRITE_PASS,
-
- /* OS-HBA: Protected, HBA-Target: Protected, checksum conversion */
- SCSI_PROT_READ_CONVERT,
- SCSI_PROT_WRITE_CONVERT,
};
static inline void scsi_set_prot_op(struct scsi_cmnd *scmd, unsigned char op)
