diff options
Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_scsih.c')
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_scsih.c | 142 |
1 files changed, 53 insertions, 89 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 2e9a4445596f..471c3b604596 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -103,7 +103,6 @@ struct sense_info { }; -#define MPT2SAS_RESCAN_AFTER_HOST_RESET (0xFFFF) /** * struct fw_event_work - firmware event struct * @list: link list framework @@ -2405,27 +2404,6 @@ _scsih_check_topo_delete_events(struct MPT2SAS_ADAPTER *ioc, } /** - * _scsih_queue_rescan - queue a topology rescan from user context - * @ioc: per adapter object - * - * Return nothing. - */ -static void -_scsih_queue_rescan(struct MPT2SAS_ADAPTER *ioc) -{ - struct fw_event_work *fw_event; - - if (ioc->wait_for_port_enable_to_complete) - return; - fw_event = kzalloc(sizeof(struct fw_event_work), GFP_ATOMIC); - if (!fw_event) - return; - fw_event->event = MPT2SAS_RESCAN_AFTER_HOST_RESET; - fw_event->ioc = ioc; - _scsih_fw_event_add(ioc, fw_event); -} - -/** * _scsih_flush_running_cmds - completing outstanding commands. * @ioc: per adapter object * @@ -2456,46 +2434,6 @@ _scsih_flush_running_cmds(struct MPT2SAS_ADAPTER *ioc) } /** - * mpt2sas_scsih_reset_handler - reset callback handler (for scsih) - * @ioc: per adapter object - * @reset_phase: phase - * - * The handler for doing any required cleanup or initialization. - * - * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET, - * MPT2_IOC_DONE_RESET - * - * Return nothing. - */ -void -mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase) -{ - switch (reset_phase) { - case MPT2_IOC_PRE_RESET: - dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " - "MPT2_IOC_PRE_RESET\n", ioc->name, __func__)); - _scsih_fw_event_off(ioc); - break; - case MPT2_IOC_AFTER_RESET: - dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " - "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__)); - if (ioc->tm_cmds.status & MPT2_CMD_PENDING) { - ioc->tm_cmds.status |= MPT2_CMD_RESET; - mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid); - complete(&ioc->tm_cmds.done); - } - _scsih_fw_event_on(ioc); - _scsih_flush_running_cmds(ioc); - break; - case MPT2_IOC_DONE_RESET: - dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " - "MPT2_IOC_DONE_RESET\n", ioc->name, __func__)); - _scsih_queue_rescan(ioc); - break; - } -} - -/** * _scsih_setup_eedp - setup MPI request for EEDP transfer * @scmd: pointer to scsi command object * @mpi_request: pointer to the SCSI_IO reqest message frame @@ -5156,22 +5094,9 @@ static void _scsih_remove_unresponding_devices(struct MPT2SAS_ADAPTER *ioc) { struct _sas_device *sas_device, *sas_device_next; - struct _sas_node *sas_expander, *sas_expander_next; + struct _sas_node *sas_expander; struct _raid_device *raid_device, *raid_device_next; - unsigned long flags; - _scsih_search_responding_sas_devices(ioc); - _scsih_search_responding_raid_devices(ioc); - _scsih_search_responding_expanders(ioc); - - spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags); - ioc->shost_recovery = 0; - if (ioc->shost->shost_state == SHOST_RECOVERY) { - printk(MPT2SAS_INFO_FMT "putting controller into " - "SHOST_RUNNING\n", ioc->name); - scsi_host_set_state(ioc->shost, SHOST_RUNNING); - } - spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags); list_for_each_entry_safe(sas_device, sas_device_next, &ioc->sas_device_list, list) { @@ -5207,16 +5132,63 @@ _scsih_remove_unresponding_devices(struct MPT2SAS_ADAPTER *ioc) _scsih_raid_device_remove(ioc, raid_device); } - list_for_each_entry_safe(sas_expander, sas_expander_next, - &ioc->sas_expander_list, list) { + retry_expander_search: + sas_expander = NULL; + list_for_each_entry(sas_expander, &ioc->sas_expander_list, list) { if (sas_expander->responding) { sas_expander->responding = 0; continue; } - printk("\tremoving expander: handle(0x%04x), " - " sas_addr(0x%016llx)\n", sas_expander->handle, - (unsigned long long)sas_expander->sas_address); _scsih_expander_remove(ioc, sas_expander->handle); + goto retry_expander_search; + } +} + +/** + * mpt2sas_scsih_reset_handler - reset callback handler (for scsih) + * @ioc: per adapter object + * @reset_phase: phase + * + * The handler for doing any required cleanup or initialization. + * + * The reset phase can be MPT2_IOC_PRE_RESET, MPT2_IOC_AFTER_RESET, + * MPT2_IOC_DONE_RESET + * + * Return nothing. + */ +void +mpt2sas_scsih_reset_handler(struct MPT2SAS_ADAPTER *ioc, int reset_phase) +{ + switch (reset_phase) { + case MPT2_IOC_PRE_RESET: + dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " + "MPT2_IOC_PRE_RESET\n", ioc->name, __func__)); + _scsih_fw_event_off(ioc); + break; + case MPT2_IOC_AFTER_RESET: + dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " + "MPT2_IOC_AFTER_RESET\n", ioc->name, __func__)); + if (ioc->tm_cmds.status & MPT2_CMD_PENDING) { + ioc->tm_cmds.status |= MPT2_CMD_RESET; + mpt2sas_base_free_smid(ioc, ioc->tm_cmds.smid); + complete(&ioc->tm_cmds.done); + } + _scsih_fw_event_on(ioc); + _scsih_flush_running_cmds(ioc); + break; + case MPT2_IOC_DONE_RESET: + dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " + "MPT2_IOC_DONE_RESET\n", ioc->name, __func__)); + _scsih_sas_host_refresh(ioc, 0); + _scsih_search_responding_sas_devices(ioc); + _scsih_search_responding_raid_devices(ioc); + _scsih_search_responding_expanders(ioc); + break; + case MPT2_IOC_RUNNING: + dtmprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: " + "MPT2_IOC_RUNNING\n", ioc->name, __func__)); + _scsih_remove_unresponding_devices(ioc); + break; } } @@ -5236,14 +5208,6 @@ _firmware_event_work(struct work_struct *work) unsigned long flags; struct MPT2SAS_ADAPTER *ioc = fw_event->ioc; - /* This is invoked by calling _scsih_queue_rescan(). */ - if (fw_event->event == MPT2SAS_RESCAN_AFTER_HOST_RESET) { - _scsih_fw_event_free(ioc, fw_event); - _scsih_sas_host_refresh(ioc, 1); - _scsih_remove_unresponding_devices(ioc); - return; - } - /* the queue is being flushed so ignore this event */ spin_lock_irqsave(&ioc->fw_event_lock, flags); if (ioc->fw_events_off || ioc->remove_host) { |