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scsi_lib: Decode T10 vendor IDs

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Some arrays / HBAs will only present T10 vendor IDs, so we should be
decoding them, too.

[mkp: Fixed T10 spelling]

Suggested-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Tested-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Hannes Reinecke 2016-05-09 09:14:29 +02:00 committed by Martin K. Petersen
parent fe8b9534a0
commit d230823a1c
1 changed files with 16 additions and 0 deletions
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16
drivers/scsi/scsi_lib.c
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@ -3064,6 +3064,7 @@ int scsi_vpd_lun_id(struct scsi_device *sdev, char *id, size_t id_len)
* - EUI-64 based 12-byte
* - NAA IEEE Registered
* - NAA IEEE Extended
* - T10 Vendor ID
* as longer descriptors reduce the likelyhood
* of identification clashes.
*/
@ -3082,6 +3083,21 @@ int scsi_vpd_lun_id(struct scsi_device *sdev, char *id, size_t id_len)
goto next_desig;
switch (d[1] & 0xf) {
case 0x1:
/* T10 Vendor ID */
if (cur_id_size > d[3])
break;
/* Prefer anything */
if (cur_id_type > 0x01 && cur_id_type != 0xff)
break;
cur_id_size = d[3];
if (cur_id_size + 4 > id_len)
cur_id_size = id_len - 4;
cur_id_str = d + 4;
cur_id_type = d[1] & 0xf;
id_size = snprintf(id, id_len, "t10.%*pE",
cur_id_size, cur_id_str);
break;
case 0x2:
/* EUI-64 */
if (cur_id_size > d[3])