diff options
Diffstat (limited to 'drivers/scsi/sd.c')
| -rw-r--r-- | drivers/scsi/sd.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index a7b53be63367..7c4d2e68df1c 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -384,7 +384,7 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) sector_t block = rq->sector; sector_t threshold; unsigned int this_count = rq->nr_sectors; - int ret; + int ret, host_dif; if (rq->cmd_type == REQ_TYPE_BLOCK_PC) { ret = scsi_setup_blk_pc_cmnd(sdp, rq); @@ -515,7 +515,8 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) rq->nr_sectors)); /* Set RDPROTECT/WRPROTECT if disk is formatted with DIF */ - if (scsi_host_dif_capable(sdp->host, sdkp->protection_type)) + host_dif = scsi_host_dif_capable(sdp->host, sdkp->protection_type); + if (host_dif) SCpnt->cmnd[1] = 1 << 5; else SCpnt->cmnd[1] = 0; @@ -573,8 +574,9 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq) SCpnt->sdb.length = this_count * sdp->sector_size; /* If DIF or DIX is enabled, tell HBA how to handle request */ - if (sdkp->protection_type || scsi_prot_sg_count(SCpnt)) - sd_dif_op(SCpnt, sdkp->protection_type, scsi_prot_sg_count(SCpnt)); + if (host_dif || scsi_prot_sg_count(SCpnt)) + sd_dif_op(SCpnt, host_dif, scsi_prot_sg_count(SCpnt), + sdkp->protection_type); /* * We shouldn't disconnect in the middle of a sector, so with a dumb @@ -1252,14 +1254,12 @@ void sd_read_protection_type(struct scsi_disk *sdkp, unsigned char *buffer) else type = ((buffer[12] >> 1) & 7) + 1; /* P_TYPE 0 = Type 1 */ + sdkp->protection_type = type; + switch (type) { case SD_DIF_TYPE0_PROTECTION: - sdkp->protection_type = 0; - break; - case SD_DIF_TYPE1_PROTECTION: case SD_DIF_TYPE3_PROTECTION: - sdkp->protection_type = type; break; case SD_DIF_TYPE2_PROTECTION: @@ -1277,7 +1277,6 @@ void sd_read_protection_type(struct scsi_disk *sdkp, unsigned char *buffer) return; disable: - sdkp->protection_type = 0; sdkp->capacity = 0; } |