diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2012-02-10 01:18:34 -0800 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-02-19 09:14:24 -0600 |
| commit | 3d2d752549150c2706f6bf8d8a2cceb89ef9f42e (patch) | |
| tree | b50821eef1f21902c5d22263001e202b65c3d680 /drivers/scsi/isci/init.c | |
| parent | a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b (diff) | |
[SCSI] isci: T10 DIF support
This allows the controller to do WRITE_INSERT and READ_STRIP for SAS
disks that support protection information. SAS disks must be formatted
with protection information to use this feature via sg_format.
sg3_utils-1.32 -- sg_format version 1.19 20110730
sg_format usage:
sg_format --format --verbose --pinfo /dev/sda
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/isci/init.c')
| -rw-r--r-- | drivers/scsi/isci/init.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 17c4c2c89c2e..6b911e0aea3f 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -528,6 +528,13 @@ static int __devinit isci_pci_probe(struct pci_dev *pdev, const struct pci_devic goto err_host_alloc; } pci_info->hosts[i] = h; + + /* turn on DIF support */ + scsi_host_set_prot(h->shost, + SHOST_DIF_TYPE1_PROTECTION | + SHOST_DIF_TYPE2_PROTECTION | + SHOST_DIF_TYPE3_PROTECTION); + scsi_host_set_guard(h->shost, SHOST_DIX_GUARD_CRC); } err = isci_setup_interrupts(pdev); |