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| author | Christoph Hellwig <hch@lst.de> | 2016-09-11 19:35:41 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-09-15 09:51:14 -0400 |
| commit | 8475c8118551f806176b5af4d0e8657a5f015b95 (patch) | |
| tree | 64d1f724585a7baef043f6163764d021f2e2f01c /include/linux/t10-pi.h | |
| parent | 27c0e83b273a637d5cb56f02550c31d803bafc10 (diff) | |
| download | linux-8475c8118551f806176b5af4d0e8657a5f015b95.tar.gz linux-8475c8118551f806176b5af4d0e8657a5f015b95.tar.bz2 linux-8475c8118551f806176b5af4d0e8657a5f015b95.zip | |
scsi: sd: Move DIF protection types to t10-pi.h
These should go together with the rest of the T10 protection information
defintions.
[mkp: s/T10_DIF/T10_PI/]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/linux/t10-pi.h')
| -rw-r--r-- | include/linux/t10-pi.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/t10-pi.h b/include/linux/t10-pi.h index dd8de82cf5b5..9fba9dd33544 100644 --- a/include/linux/t10-pi.h +++ b/include/linux/t10-pi.h @@ -5,6 +5,26 @@ #include <linux/blkdev.h> /* + * A T10 PI-capable target device can be formatted with different + * protection schemes. Currently 0 through 3 are defined: + * + * Type 0 is regular (unprotected) I/O + * + * Type 1 defines the contents of the guard and reference tags + * + * Type 2 defines the contents of the guard and reference tags and + * uses 32-byte commands to seed the latter + * + * Type 3 defines the contents of the guard tag only + */ +enum t10_dif_type { + T10_PI_TYPE0_PROTECTION = 0x0, + T10_PI_TYPE1_PROTECTION = 0x1, + T10_PI_TYPE2_PROTECTION = 0x2, + T10_PI_TYPE3_PROTECTION = 0x3, +}; + +/* * T10 Protection Information tuple. */ struct t10_pi_tuple { |