From 03b288cf3d92202b950245e931576bb573930c70 Mon Sep 17 00:00:00 2001 From: Kevin Barnett Date: Wed, 3 May 2017 18:54:49 -0500 Subject: [PATCH] scsi: smartpqi: update device offline - Improve handling of offline devices. Reviewed-by: Scott Benesh Signed-off-by: Kevin Barnett Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 30 +++++++++++++++++++-------- 1 file changed, 21 insertions(+), 9 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 57ff80fba3f5..f36aaceacae4 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -285,6 +285,11 @@ static inline void pqi_ctrl_wait_until_quiesced(struct pqi_ctrl_info *ctrl_info) usleep_range(1000, 2000); } +static inline bool pqi_device_offline(struct pqi_scsi_dev *device) +{ + return device->device_offline; +} + static inline void pqi_device_reset_start(struct pqi_scsi_dev *device) { device->in_reset = true; @@ -2399,15 +2404,17 @@ static inline void pqi_take_device_offline(struct scsi_device *sdev, char *path) struct pqi_ctrl_info *ctrl_info; struct pqi_scsi_dev *device; - if (scsi_device_online(sdev)) { - scsi_device_set_state(sdev, SDEV_OFFLINE); - ctrl_info = shost_to_hba(sdev->host); - schedule_delayed_work(&ctrl_info->rescan_work, 0); - device = sdev->hostdata; - dev_err(&ctrl_info->pci_dev->dev, "offlined %s scsi %d:%d:%d:%d\n", - path, ctrl_info->scsi_host->host_no, device->bus, - device->target, device->lun); - } + device = sdev->hostdata; + if (device->device_offline) + return; + + device->device_offline = true; + scsi_device_set_state(sdev, SDEV_OFFLINE); + ctrl_info = shost_to_hba(sdev->host); + pqi_schedule_rescan_worker(ctrl_info); + dev_err(&ctrl_info->pci_dev->dev, "offlined %s scsi %d:%d:%d:%d\n", + path, ctrl_info->scsi_host->host_no, device->bus, + device->target, device->lun); } static void pqi_process_raid_io_error(struct pqi_io_request *io_request) @@ -4598,6 +4605,7 @@ static inline void pqi_schedule_bypass_retry(struct pqi_ctrl_info *ctrl_info) static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request) { struct scsi_cmnd *scmd; + struct pqi_scsi_dev *device; struct pqi_ctrl_info *ctrl_info; if (!io_request->raid_bypass) @@ -4609,6 +4617,10 @@ static bool pqi_raid_bypass_retry_needed(struct pqi_io_request *io_request) if (host_byte(scmd->result) == DID_NO_CONNECT) return false; + device = scmd->device->hostdata; + if (pqi_device_offline(device)) + return false; + ctrl_info = shost_to_hba(scmd->device->host); if (pqi_ctrl_offline(ctrl_info)) return false; -- 2.30.2