From: Ilgu Hong <ilgu.hong@xxxxxxxxxxx>
When we switch controllers the Intel Multi-Flex reports
REPORTED_LUNS_DATA_HAS_CHANGED. This patch just has us
retry the command.
Signed-off-by: Ilgu Hong <ilgu.hong@xxxxxxxxxxx>
Signed-off-by: Mike Christie <michaelc@xxxxxxxxxxx>
---
drivers/scsi/device_handler/scsi_dh_alua.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 31e1df5..dba154c 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -461,6 +461,15 @@ static int alua_check_sense(struct scsi_device *sdev,
*/
return ADD_TO_MLQUEUE;
}
+ if (sense_hdr->asc == 0x3f && sense_hdr->ascq == 0x0e) {
+ /*
+ * REPORTED_LUNS_DATA_HAS_CHANGED is reported
+ * when switching controllers on targets like
+ * Intel Multi-Flex. We can just retry.
+ */
+ return ADD_TO_MLQUEUE;
+ }
+
break;
}
--
1.6.0.6
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