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| author |   Suganath Prabu S <suganath-prabu.subramani@broadcom.com> | 2020-07-30 13:33:45 +0530 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2020-08-20 21:41:50 -0400 |
| commit | 9e73ed2e4cf51878ad2e5c5cff6146844f5960b7 (patch) | |
| tree | b4fd8a82297f39b3036129bc7f4dda5fe8d6db0f /drivers/scsi/mpt3sas/mpt3sas_base.h | |
| parent | scsi: mpt3sas: Dump system registers for debugging (diff) | |
| download | wireguard-linux-9e73ed2e4cf51878ad2e5c5cff6146844f5960b7.tar.xz wireguard-linux-9e73ed2e4cf51878ad2e5c5cff6146844f5960b7.zip | |
scsi: mpt3sas: Cancel the running work during host reset
It is not recommended to issue back-to-back host reset without any delay.
However, if someone issues back-to-back host reset then we observe that
target devices get unregistered and re-register with SML. And if OS drive
is behind the HBA when it gets unregistered, then file-system goes into
read-only mode.
Normally during host reset, driver marks accessible target devices as
responding and triggers the event MPT3SAS_REMOVE_UNRESPONDING_DEVICES to
remove any non-responding devices through FW worker thread. While
processing this event, driver unregisters the non-responding devices and
clears the responding flag for all the devices.
Currently, during host reset, driver is cancelling only those Firmware
event works which are pending in Firmware event workqueue. It is not
cancelling work which is currently running. Change the driver to cancel all
events.
Link: https://lore.kernel.org/r/1596096229-3341-4-git-send-email-suganath-prabu.subramani@broadcom.com
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/mpt3sas/mpt3sas_base.h')
| -rw-r--r-- | drivers/scsi/mpt3sas/mpt3sas_base.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h index 4ff876c31272..2718207dfe17 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.h +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h @@ -1036,6 +1036,8 @@ typedef void (*MPT3SAS_FLUSH_RUNNING_CMDS)(struct MPT3SAS_ADAPTER *ioc); * @firmware_event_thread: "" * @fw_event_lock: * @fw_event_list: list of fw events + * @current_evet: current processing firmware event + * @fw_event_cleanup: set to one while cleaning up the fw events * @aen_event_read_flag: event log was read * @broadcast_aen_busy: broadcast aen waiting to be serviced * @shost_recovery: host reset in progress @@ -1217,6 +1219,8 @@ struct MPT3SAS_ADAPTER { struct workqueue_struct *firmware_event_thread; spinlock_t fw_event_lock; struct list_head fw_event_list; + struct fw_event_work *current_event; + u8 fw_events_cleanup; /* misc flags */ int aen_event_read_flag; |