From 4d086f6baf73c02d12482c27c9f1e0682825ca13 Mon Sep 17 00:00:00 2001 From: Ilgu Hong Date: Fri, 30 Jan 2009 17:00:11 -0600 Subject: [SCSI] scsi dh alua: handle report luns data changed in check sense callout 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 Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/device_handler/scsi_dh_alua.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/scsi/device_handler') diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c index 31e1df5c366b..dba154c8ff64 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; } -- cgit v1.2.3