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authorPaolo Bonzini <pbonzini@redhat.com>2014-04-02 12:12:50 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2014-04-03 13:10:32 +0200
commit27898a5daa4c6d28adb32b401a011d7198494482 (patch)
treeefa46d077088be6a0b87fcd8518c0d3be0ae51c5
parentd581eb7ca4b58649ade5fb7570ecf6b4b9a41879 (diff)
iscsi: recognize "invalid field" ASCQ from WRITE SAME command
Some targets may return "invalid field" as the ASCQ from WRITE SAME if they support the command only without the UNMAP field. Recognize that, and return ENOTSUP just like for "invalid operation code". Reviewed-by: Peter Lieven <pl@kamp.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--block/iscsi.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/block/iscsi.c b/block/iscsi.c
index b490e98c05..2f96a8e037 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -838,7 +838,8 @@ retry:
if (iTask.status == SCSI_STATUS_CHECK_CONDITION &&
iTask.task->sense.key == SCSI_SENSE_ILLEGAL_REQUEST &&
- iTask.task->sense.ascq == SCSI_SENSE_ASCQ_INVALID_OPERATION_CODE) {
+ (iTask.task->sense.ascq == SCSI_SENSE_ASCQ_INVALID_OPERATION_CODE ||
+ iTask.task->sense.ascq == SCSI_SENSE_ASCQ_INVALID_FIELD_IN_CDB)) {
/* WRITE SAME is not supported by the target */
iscsilun->has_write_same = false;
scsi_free_scsi_task(iTask.task);