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authorBart Van Assche <bvanassche@acm.org>2019-08-08 20:01:54 -0700
committerMartin K. Petersen <martin.petersen@oracle.com>2019-08-12 21:34:07 -0400
commitfcef08932db7770cc176555ac2f08574b1e43af6 (patch)
treef10c3f1a89a924ed1f4bccb3f71604c0b6c70967
parentbc97c9484baefe5092120b2b81c3993296ad14ad (diff)
downloadlinux-fcef08932db7770cc176555ac2f08574b1e43af6.tar.bz2
scsi: qla2xxx: Complain if waiting for pending commands times out
Such a timeout is a severe issue. Hence complain if waiting for pending commands times out. This patch fixes a small bug: it modifies qla82xx_chip_reset_cleanup() such that the "Done waiting" message is reported if qla82xx_chip_reset_cleanup() succeeded instead of if that function failed. Cc: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Tested-by: Himanshu Madhani <hmadhani@marvell.com> Reviewed-by: Himanshu Madhani <hmadhani@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
-rw-r--r--drivers/scsi/qla2xxx/qla_init.c3
-rw-r--r--drivers/scsi/qla2xxx/qla_nx.c4
-rw-r--r--drivers/scsi/qla2xxx/qla_os.c7
3 files changed, 10 insertions, 4 deletions
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 1fd9a086748e..2d9a379fd8fb 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -6634,7 +6634,8 @@ qla2x00_quiesce_io(scsi_qla_host_t *vha)
LOOP_DOWN_TIME);
}
/* Wait for pending cmds to complete */
- qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST);
+ WARN_ON_ONCE(qla2x00_eh_wait_for_pending_commands(vha, 0, 0, WAIT_HOST)
+ != QLA_SUCCESS);
}
void
diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index c1c832271ccb..a91d426add75 100644
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -3710,10 +3710,12 @@ qla82xx_chip_reset_cleanup(scsi_qla_host_t *vha)
/* Wait for pending cmds (physical and virtual) to complete */
if (qla2x00_eh_wait_for_pending_commands(vha, 0, 0,
- WAIT_HOST)) {
+ WAIT_HOST) == QLA_SUCCESS) {
ql_dbg(ql_dbg_init, vha, 0x00b3,
"Done wait for "
"pending commands.\n");
+ } else {
+ WARN_ON_ONCE(true);
}
}
}
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 2ba06a84c501..e91681cbd75d 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1059,8 +1059,8 @@ qc24_fail_command:
* cmd = Scsi Command to wait on.
*
* Return:
- * Not Found : 0
- * Found : 1
+ * Completed in time : QLA_SUCCESS
+ * Did not complete in time : QLA_FUNCTION_FAILED
*/
static int
qla2x00_eh_wait_on_command(struct scsi_cmnd *cmd)
@@ -1372,6 +1372,9 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
return ret;
}
+/*
+ * Returns: QLA_SUCCESS or QLA_FUNCTION_FAILED.
+ */
int
qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
uint64_t l, enum nexus_wait_type type)