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| author | Martin K. Petersen <martin.petersen@oracle.com> | 2014-09-26 19:20:03 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-09-27 09:14:51 -0600 |
| commit | 3aec2f41a8baeb70aa77556a4e4dcec7d9d70b4d (patch) | |
| tree | 2725a81cae556798bd3f363c4e8e5595c1ce1aaf /drivers/scsi/sd_dif.c | |
| parent | 8288f496eb1b1905c425e92eaf1abbb29119217b (diff) | |
| download | op-kernel-dev-3aec2f41a8baeb70aa77556a4e4dcec7d9d70b4d.zip op-kernel-dev-3aec2f41a8baeb70aa77556a4e4dcec7d9d70b4d.tar.gz | |
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.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/scsi/sd_dif.c b/drivers/scsi/sd_dif.c index 801c418..1e971c6 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 |
