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scsi: ILLEGAL REQUEST + ASC==27 => target failure

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ASC 0x27 is "WRITE PROTECTED". This error code is returned e.g.  by
Fujitsu ETERNUS systems under certain conditions for WRITE SAME 16
commands with UNMAP bit set. It should not be treated as a path
error. In general, it makes sense to assume that being write protected
is a target rather than a path property.

Signed-off-by: Martin Wilck <mwilck@suse.com>
Acked-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Martin Wilck 2017-09-27 14:44:19 +02:00 committed by Martin K. Petersen
parent d1b490939d
commit d0b7a9095c
1 changed files with 2 additions and 1 deletions
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3
drivers/scsi/scsi_error.c
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@ -580,7 +580,8 @@ int scsi_check_sense(struct scsi_cmnd *scmd)
if (sshdr.asc == 0x20 || /* Invalid command operation code */
sshdr.asc == 0x21 || /* Logical block address out of range */
sshdr.asc == 0x24 || /* Invalid field in cdb */
sshdr.asc == 0x26) { /* Parameter value invalid */
sshdr.asc == 0x26 || /* Parameter value invalid */
sshdr.asc == 0x27) { /* Write protected */
set_host_byte(scmd, DID_TARGET_FAILURE);
}
return SUCCESS;