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authorStewart, Sean <Sean.Stewart@netapp.com>2013-10-15 19:52:39 +0400
committerJames Bottomley <JBottomley@Parallels.com>2013-10-25 14:14:18 +0400
commitc20ee7b56e0a1937b41919813e5a98373ca48ae8 (patch)
tree4d5225e9ff6f83c50e3214628a5243bbf9d4a7ef /drivers/scsi
parent0f3c7b99f33f7a9c743a752bba2414615c48e270 (diff)
downloadlinux-c20ee7b56e0a1937b41919813e5a98373ca48ae8.tar.xz
[SCSI] scsi_dh_alua: ALUA check sense should retry device internal reset unit attention
When the scsi_dh_alua handler issues an RTPG during initialization, if it gets 0x06/0x29/0x04 as the sense, it will fail to attach the handler. NetApp E-Series returns 0x29/0x00 for power on, and 0x29/0x04 for conditions that cause the controller to reboot again. These conditions should be treated identically within the handler. Signed-off-by: Sean Stewart <Sean.Stewart@netapp.com> Acked-by: Hannes Reinecke <hare@suse.de> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/device_handler/scsi_dh_alua.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 68adb8955d2d..78205cc2059c 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -481,6 +481,11 @@ static int alua_check_sense(struct scsi_device *sdev,
* Power On, Reset, or Bus Device Reset, just retry.
*/
return ADD_TO_MLQUEUE;
+ if (sense_hdr->asc == 0x29 && sense_hdr->ascq == 0x04)
+ /*
+ * Device internal reset
+ */
+ return ADD_TO_MLQUEUE;
if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x01)
/*
* Mode Parameters Changed