From: Stewart, Sean Date: Tue, 15 Oct 2013 15:52:39 +0000 (+0000) Subject: [SCSI] scsi_dh_alua: ALUA check sense should retry device internal reset unit attention X-Git-Tag: firefly_0821_release~176^2~4986^2~12 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c20ee7b56e0a1937b41919813e5a98373ca48ae8;p=firefly-linux-kernel-4.4.55.git [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 Acked-by: Hannes Reinecke Signed-off-by: James Bottomley --- 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