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authorMartin K. Petersen <martin.petersen@oracle.com>2014-09-26 19:20:03 -0400
committerJens Axboe <axboe@fb.com>2014-09-27 09:14:51 -0600
commit3aec2f41a8baeb70aa77556a4e4dcec7d9d70b4d (patch)
tree2725a81cae556798bd3f363c4e8e5595c1ce1aaf /drivers/scsi/sd_dif.c
parent8288f496eb1b1905c425e92eaf1abbb29119217b (diff)
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block: Add a disk flag to block integrity profile
So far we have relied on the app tag size to determine whether a disk has been formatted with T10 protection information or not. However, not all target devices provide application tag storage. Add a flag to the block integrity profile that indicates whether the disk has been formatted with protection information. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Sagi Grimberg <sagig@dev.mellanox.co.il> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/scsi/sd_dif.c')
-rw-r--r--drivers/scsi/sd_dif.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/scsi/sd_dif.c b/drivers/scsi/sd_dif.c
index 801c41851a01..1e971c6f8c2b 100644
--- a/drivers/scsi/sd_dif.c
+++ b/drivers/scsi/sd_dif.c
@@ -270,7 +270,13 @@ void sd_dif_config_host(struct scsi_disk *sdkp)
"Enabling DIX %s protection\n", disk->integrity->name);
/* Signal to block layer that we support sector tagging */
- if (dif && type && sdkp->ATO) {
+ if (dif && type) {
+
+ disk->integrity->flags |= BLK_INTEGRITY_DEVICE_CAPABLE;
+
+ if (!sdkp)
+ return;
+
if (type == SD_DIF_TYPE3_PROTECTION)
disk->integrity->tag_size = sizeof(u16) + sizeof(u32);
else