[SCSI] Generate uevents on certain unit attention codes
Generate a uevent when the following Unit Attention ASC/ASCQ
codes are received:
2A/01 MODE PARAMETERS CHANGED
2A/09 CAPACITY DATA HAS CHANGED
38/07 THIN PROVISIONING SOFT THRESHOLD REACHED
3F/03 INQUIRY DATA HAS CHANGED
3F/0E REPORTED LUNS DATA HAS CHANGED
Log kernel messages when the following Unit Attention ASC/ASCQ
codes are received that are not as specific as those above:
2A/xx PARAMETERS CHANGED
3F/xx TARGET OPERATING CONDITIONS HAVE CHANGED
Added logic to set expecting_lun_change for other LUNs on the target
after REPORTED LUNS DATA HAS CHANGED is received, so that duplicate
uevents are not generated, and clear expecting_lun_change when a
REPORT LUNS command completes, in accordance with the SPC-3
specification regarding reporting of the 3F 0E ASC/ASCQ UA.
[jejb: remove SPC3 test in scsi_report_lun_change and some docbook fixes and
unused variable fix, both reported by Fengguang Wu]
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 36b5c89..d545931c 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -2253,7 +2253,21 @@
case SDEV_EVT_MEDIA_CHANGE:
envp[idx++] = "SDEV_MEDIA_CHANGE=1";
break;
-
+ case SDEV_EVT_INQUIRY_CHANGE_REPORTED:
+ envp[idx++] = "SDEV_UA=INQUIRY_DATA_HAS_CHANGED";
+ break;
+ case SDEV_EVT_CAPACITY_CHANGE_REPORTED:
+ envp[idx++] = "SDEV_UA=CAPACITY_DATA_HAS_CHANGED";
+ break;
+ case SDEV_EVT_SOFT_THRESHOLD_REACHED_REPORTED:
+ envp[idx++] = "SDEV_UA=THIN_PROVISIONING_SOFT_THRESHOLD_REACHED";
+ break;
+ case SDEV_EVT_MODE_PARAMETER_CHANGE_REPORTED:
+ envp[idx++] = "SDEV_UA=MODE_PARAMETERS_CHANGED";
+ break;
+ case SDEV_EVT_LUN_CHANGE_REPORTED:
+ envp[idx++] = "SDEV_UA=REPORTED_LUNS_DATA_HAS_CHANGED";
+ break;
default:
/* do nothing */
break;
@@ -2274,10 +2288,15 @@
void scsi_evt_thread(struct work_struct *work)
{
struct scsi_device *sdev;
+ enum scsi_device_event evt_type;
LIST_HEAD(event_list);
sdev = container_of(work, struct scsi_device, event_work);
+ for (evt_type = SDEV_EVT_FIRST; evt_type <= SDEV_EVT_LAST; evt_type++)
+ if (test_and_clear_bit(evt_type, sdev->pending_events))
+ sdev_evt_send_simple(sdev, evt_type, GFP_KERNEL);
+
while (1) {
struct scsi_event *evt;
struct list_head *this, *tmp;
@@ -2347,6 +2366,11 @@
/* evt_type-specific initialization, if any */
switch (evt_type) {
case SDEV_EVT_MEDIA_CHANGE:
+ case SDEV_EVT_INQUIRY_CHANGE_REPORTED:
+ case SDEV_EVT_CAPACITY_CHANGE_REPORTED:
+ case SDEV_EVT_SOFT_THRESHOLD_REACHED_REPORTED:
+ case SDEV_EVT_MODE_PARAMETER_CHANGE_REPORTED:
+ case SDEV_EVT_LUN_CHANGE_REPORTED:
default:
/* do nothing */
break;