diff options
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_scsih.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index bfda0ecd960d..96f4d1f1cf5e 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -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; } - scsi_host_set_prot(shost, SHOST_DIF_TYPE1_PROTECTION - | SHOST_DIF_TYPE2_PROTECTION | SHOST_DIF_TYPE3_PROTECTION); + /* 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); + scsi_host_set_guard(shost, SHOST_DIX_GUARD_CRC); /* event thread */ |