If a scsi host is removed during an asynchronous SCSI scan, the mpt2sas
and mpt3sas .scan_finished callback function may take up to 5 minutes to
timeout and notify the SCSI layer that the operation has failed. Once the
driver determines that an adapter is gone, stop waiting for the scan to
complete.
Signed-off-by: Joe Lawrence <joe.lawre...@stratus.com>
Cc: James E.J. Bottomley <jbottom...@parallels.com>
Cc: Nagalakshmi Nandigama <nagalakshmi.nandig...@lsi.com>
Cc: Sreekanth Reddy <sreekanth.re...@lsi.com>
Cc: supp...@lsi.com
Cc: dl-mptfusionli...@lsi.com
Cc: linux-scsi@vger.kernel.org
---
drivers/scsi/mpt2sas/mpt2sas_scsih.c | 10 ++++++++--
drivers/scsi/mpt3sas/mpt3sas_scsih.c | 12 +++++++++---
2 files changed, 17 insertions(+), 5 deletions(-)
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index c6bdc92..d1e24e7 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -7951,14 +7951,20 @@ _scsih_scan_start(struct Scsi_Host *shost)
* @time: elapsed time of the scan in jiffies
*
* This function will be called periodically until it returns 1 with the
- * scsi_host and the elapsed time of the scan in jiffies. In our implemention,
- * we wait for firmware discovery to complete, then return 1.
+ * scsi_host and the elapsed time of the scan in jiffies. In our
+ * implementation, we wait for firmware discovery to complete, then return 1.
*/
static int
_scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
struct MPT2SAS_ADAPTER *ioc = shost_priv(shost);
+ if (ioc->remove_host) {
+ printk(MPT2SAS_INFO_FMT "port enable: FAILED host removed\n",
+ ioc->name);
+ return 1;
+ }
+
if (disable_discovery > 0) {
ioc->is_driver_loading = 0;
ioc->wait_for_discovery_to_complete = 0;
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 6421a06..170f485 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -7665,15 +7665,21 @@ _scsih_scan_start(struct Scsi_Host *shost)
* @shost: SCSI host pointer
* @time: elapsed time of the scan in jiffies
*
- * This function will be called periodicallyn until it returns 1 with the
- * scsi_host and the elapsed time of the scan in jiffies. In our implemention,
- * we wait for firmware discovery to complete, then return 1.
+ * This function will be called periodically until it returns 1 with the
+ * scsi_host and the elapsed time of the scan in jiffies. In our
+ * implementation, we wait for firmware discovery to complete, then return 1.
*/
static int
_scsih_scan_finished(struct Scsi_Host *shost, unsigned long time)
{
struct MPT3SAS_ADAPTER *ioc = shost_priv(shost);
+ if (ioc->remove_host) {
+ pr_info(MPT3SAS_FMT "port enable: FAILED host removed\n",
+ ioc->name);
+ return 1;
+ }
+
if (disable_discovery > 0) {
ioc->is_driver_loading = 0;
ioc->wait_for_discovery_to_complete = 0;
--
1.8.1.2
--
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