diff options
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_device.h | 4 | ||||
| -rw-r--r-- | include/scsi/scsi_devinfo.h | 1 |
2 files changed, 5 insertions, 0 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 9895f69294fc..88fae8d20154 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -156,6 +156,7 @@ struct scsi_device { unsigned is_visible:1; /* is the device visible in sysfs */ unsigned can_power_off:1; /* Device supports runtime power off */ unsigned wce_default_on:1; /* Cache is ON by default */ + unsigned no_dif:1; /* T10 PI (DIF) should be disabled */ DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */ struct list_head event_list; /* asserted events */ @@ -476,6 +477,9 @@ static inline int scsi_device_enclosure(struct scsi_device *sdev) static inline int scsi_device_protection(struct scsi_device *sdev) { + if (sdev->no_dif) + return 0; + return sdev->scsi_level > SCSI_2 && sdev->inquiry[5] & (1<<0); } diff --git a/include/scsi/scsi_devinfo.h b/include/scsi/scsi_devinfo.h index b4ddd3b18b4c..cc1f3e786ad7 100644 --- a/include/scsi/scsi_devinfo.h +++ b/include/scsi/scsi_devinfo.h @@ -30,4 +30,5 @@ #define BLIST_RETRY_HWERROR 0x400000 /* retry HARDWARE_ERROR */ #define BLIST_MAX_512 0x800000 /* maximum 512 sector cdb length */ #define BLIST_ATTACH_PQ3 0x1000000 /* Scan: Attach to PQ3 devices */ +#define BLIST_NO_DIF 0x2000000 /* Disable T10 PI (DIF) */ #endif |