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Commit 5e95e731 authored by Martin K. Petersen's avatar Martin K. Petersen Committed by James Bottomley
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[SCSI] mpt2sas: Add a module parameter that permits overriding protection capabilities 



Add a parameter that allows the host protection capabilities mask to be
provided at module load time.

Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Acked-by: default avatar"Sreekanth Reddy" <Sreekanth.reddy@lsi.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent 9b5cd132

drivers/scsi/mpt2sas/mpt2sas_scsih.c

+13 −2
Original line number Diff line number Diff line
@@ -123,6 +123,11 @@ static int disable_discovery = -1; 
module_param(disable_discovery, int, 0);

MODULE_PARM_DESC(disable_discovery, " disable discovery ");



/* permit overriding the host protection capabilities mask (EEDP/T10 PI) */

static int prot_mask = 0;

module_param(prot_mask, int, 0);

MODULE_PARM_DESC(prot_mask, " host protection capabilities mask, def=7 ");



/**

 * struct sense_info - common structure for obtaining sense keys

 * @skey: sense key
@@ -8088,8 +8093,14 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) 
		goto out_add_shost_fail;

	}



	/* register EEDP capabilities with SCSI layer */

	if (prot_mask)

		scsi_host_set_prot(shost, prot_mask);

	else

		scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION

	    | SHOST_DIF_TYPE2_PROTECTION | SHOST_DIF_TYPE3_PROTECTION);

				   | SHOST_DIF_TYPE2_PROTECTION

				   | SHOST_DIF_TYPE3_PROTECTION);



	scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC);



	/* event thread */