[SCSI] mpt2sas: DIF Type 2 Protection Support
Adding DIF Type 2 protection support, as well as turning on 32 byte cdb's,
and setting the cdb length for > 16 byte in the SCSI_IO->control parameter.
Signed-off-by: Martin Petersen <martin.petersen@oracle.com>
Signed-off-by: Eric Moore <eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index c5ff26a..456ea7c 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -2858,9 +2858,7 @@
unsigned char prot_op = scsi_get_prot_op(scmd);
unsigned char prot_type = scsi_get_prot_type(scmd);
- if (prot_type == SCSI_PROT_DIF_TYPE0 ||
- prot_type == SCSI_PROT_DIF_TYPE2 ||
- prot_op == SCSI_PROT_NORMAL)
+ if (prot_type == SCSI_PROT_DIF_TYPE0 || prot_op == SCSI_PROT_NORMAL)
return;
if (prot_op == SCSI_PROT_READ_STRIP)
@@ -2882,7 +2880,13 @@
MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
mpi_request->CDB.EEDP32.PrimaryReferenceTag =
cpu_to_be32(scsi_get_lba(scmd));
+ break;
+ case SCSI_PROT_DIF_TYPE2:
+
+ eedp_flags |= MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG |
+ MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG |
+ MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD;
break;
case SCSI_PROT_DIF_TYPE3:
@@ -3013,7 +3017,7 @@
mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
/* Make sure Device is not raid volume */
if (!_scsih_is_raid(&scmd->device->sdev_gendev) &&
- sas_is_tlr_enabled(scmd->device))
+ sas_is_tlr_enabled(scmd->device) && scmd->cmd_len != 32)
mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
smid = mpt2sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
@@ -3025,6 +3029,8 @@
mpi_request = mpt2sas_base_get_msg_frame(ioc, smid);
memset(mpi_request, 0, sizeof(Mpi2SCSIIORequest_t));
_scsih_setup_eedp(scmd, mpi_request);
+ if (scmd->cmd_len == 32)
+ mpi_control |= 4 << MPI2_SCSIIO_CONTROL_ADDCDBLEN_SHIFT;
mpi_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
if (sas_device_priv_data->sas_target->flags &
MPT_TARGET_FLAGS_RAID_COMPONENT)
@@ -6567,7 +6573,7 @@
INIT_LIST_HEAD(&ioc->delayed_tr_list);
/* init shost parameters */
- shost->max_cmd_len = 16;
+ shost->max_cmd_len = 32;
shost->max_lun = max_lun;
shost->transportt = mpt2sas_transport_template;
shost->unique_id = ioc->id;
@@ -6580,7 +6586,7 @@
}
scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION
- | SHOST_DIF_TYPE3_PROTECTION);
+ | SHOST_DIF_TYPE2_PROTECTION | SHOST_DIF_TYPE3_PROTECTION);
scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);
/* event thread */