Commit e869f8ea authored by Sreekanth Reddy's avatar Sreekanth Reddy Committed by Martin K. Petersen
Browse files

scsi: mpt3sas: Disable DIF when prot_mask set to zero 



By default DIF Type 1, DIF Type 2 & DIF Type 3 will be enabled.  Also,
users can enable either DIF Type 1 or DIF Type 2 or DIF Type 3 or in any
combination using the prot_mask module parameter.

However, when the user provides a prot_mask module parameter value of zero,
then the driver is not disabling the DIF. Instead it enables all three
types.

Modify the driver to disable the DIF support if the user provides a
prot_mask module parameter value of zero.

Link: https://lore.kernel.org/r/1588065902-2726-1-git-send-email-sreekanth.reddy@broadcom.com
Signed-off-by: default avatarSreekanth Reddy <sreekanth.reddy@broadcom.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 4778069c

drivers/scsi/mpt3sas/mpt3sas_scsih.c

+2 −2
Original line number Diff line number Diff line
@@ -10764,8 +10764,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) 
		}

	}

	/* register EEDP capabilities with SCSI layer */

	if (prot_mask > 0)

		scsi_host_set_prot(shost, prot_mask);

	if (prot_mask >= 0)

		scsi_host_set_prot(shost, (prot_mask & 0x07));

	else

		scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION

				   | SHOST_DIF_TYPE2_PROTECTION