[SCSI] qla2xxx: T10 DIF - ISP83xx changes.
Signed-off-by: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 1020db5..ec7cefc 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -116,9 +116,8 @@
"Maximum queue depth to set for each LUN. "
"Default is 32.");
-/* Do not change the value of this after module load */
-int ql2xenabledif = 0;
-module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
+int ql2xenabledif = 2;
+module_param(ql2xenabledif, int, S_IRUGO);
MODULE_PARM_DESC(ql2xenabledif,
" Enable T10-CRC-DIF "
" Default is 0 - No DIF Support. 1 - Enable it"
@@ -1358,6 +1357,9 @@
scsi_qla_host_t *vha = shost_priv(sdev->host);
struct req_que *req = vha->req;
+ if (IS_T10_PI_CAPABLE(vha->hw))
+ blk_queue_update_dma_alignment(sdev->request_queue, 0x7);
+
if (sdev->tagged_supported)
scsi_activate_tcq(sdev, req->max_q_depth);
else
@@ -2574,7 +2576,7 @@
if (IS_T10_PI_CAPABLE(ha) && ql2xenabledif) {
if (ha->fw_attributes & BIT_4) {
- int prot = 0;
+ int prot = 0, guard;
base_vha->flags.difdix_supported = 1;
ql_dbg(ql_dbg_init, base_vha, 0x00f1,
"Registering for DIF/DIX type 1 and 3 protection.\n");
@@ -2587,7 +2589,14 @@
| SHOST_DIX_TYPE1_PROTECTION
| SHOST_DIX_TYPE2_PROTECTION
| SHOST_DIX_TYPE3_PROTECTION);
- scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
+
+ guard = SHOST_DIX_GUARD_CRC;
+
+ if (IS_PI_IPGUARD_CAPABLE(ha) &&
+ (ql2xenabledif > 1 || IS_PI_DIFB_DIX0_CAPABLE(ha)))
+ guard |= SHOST_DIX_GUARD_IP;
+
+ scsi_host_set_guard(host, guard);
} else
base_vha->flags.difdix_supported = 0;
}