diff options
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas.c')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.c | 125 |
1 files changed, 124 insertions, 1 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c index 6d998e05033..b0d6991cb6f 100644 --- a/drivers/scsi/megaraid/megaraid_sas.c +++ b/drivers/scsi/megaraid/megaraid_sas.c @@ -1520,6 +1520,8 @@ megasas_bios_param(struct scsi_device *sdev, struct block_device *bdev, return 0; } +static void megasas_aen_polling(struct work_struct *work); + /** * megasas_service_aen - Processes an event notification * @instance: Adapter soft state @@ -1551,6 +1553,20 @@ megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) instance->aen_cmd = NULL; megasas_return_cmd(instance, cmd); + + if (instance->unload == 0) { + struct megasas_aen_event *ev; + ev = kzalloc(sizeof(*ev), GFP_ATOMIC); + if (!ev) { + printk(KERN_ERR "megasas_service_aen: out of memory\n"); + } else { + ev->instance = instance; + instance->ev = ev; + INIT_WORK(&ev->hotplug_work, megasas_aen_polling); + schedule_delayed_work( + (struct delayed_work *)&ev->hotplug_work, 0); + } + } } /* @@ -2075,6 +2091,7 @@ static int megasas_create_frame_pool(struct megasas_instance *instance) } cmd->frame->io.context = cmd->index; + cmd->frame->io.pad_0 = 0; } return 0; @@ -2271,7 +2288,6 @@ megasas_get_pd_list(struct megasas_instance *instance) return ret; } - /** * megasas_get_controller_info - Returns FW's controller structure * @instance: Adapter soft state @@ -2986,6 +3002,7 @@ megasas_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) *instance->consumer = 0; megasas_poll_wait_aen = 0; instance->flag_ieee = 0; + instance->ev = NULL; instance->evt_detail = pci_alloc_consistent(pdev, sizeof(struct @@ -3209,6 +3226,16 @@ megasas_suspend(struct pci_dev *pdev, pm_message_t state) megasas_flush_cache(instance); megasas_shutdown_controller(instance, MR_DCMD_HIBERNATE_SHUTDOWN); + + /* cancel the delayed work if this work still in queue */ + if (instance->ev != NULL) { + struct megasas_aen_event *ev = instance->ev; + cancel_delayed_work( + (struct delayed_work *)&ev->hotplug_work); + flush_scheduled_work(); + instance->ev = NULL; + } + tasklet_kill(&instance->isr_tasklet); pci_set_drvdata(instance->pdev, instance); @@ -3349,6 +3376,16 @@ static void __devexit megasas_detach_one(struct pci_dev *pdev) scsi_remove_host(instance->host); megasas_flush_cache(instance); megasas_shutdown_controller(instance, MR_DCMD_CTRL_SHUTDOWN); + + /* cancel the delayed work if this work still in queue*/ + if (instance->ev != NULL) { + struct megasas_aen_event *ev = instance->ev; + cancel_delayed_work( + (struct delayed_work *)&ev->hotplug_work); + flush_scheduled_work(); + instance->ev = NULL; + } + tasklet_kill(&instance->isr_tasklet); /* @@ -3913,6 +3950,92 @@ out: return retval; } +static void +megasas_aen_polling(struct work_struct *work) +{ + struct megasas_aen_event *ev = + container_of(work, struct megasas_aen_event, hotplug_work); + struct megasas_instance *instance = ev->instance; + union megasas_evt_class_locale class_locale; + struct Scsi_Host *host; + struct scsi_device *sdev1; + u16 pd_index = 0; + int i, j, doscan = 0; + u32 seq_num; + int error; + + if (!instance) { + printk(KERN_ERR "invalid instance!\n"); + kfree(ev); + return; + } + instance->ev = NULL; + host = instance->host; + if (instance->evt_detail) { + + switch (instance->evt_detail->code) { + case MR_EVT_PD_INSERTED: + case MR_EVT_PD_REMOVED: + case MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED: + doscan = 1; + break; + default: + doscan = 0; + break; + } + } else { + printk(KERN_ERR "invalid evt_detail!\n"); + kfree(ev); + return; + } + + if (doscan) { + printk(KERN_INFO "scanning ...\n"); + megasas_get_pd_list(instance); + for (i = 0; i < MEGASAS_MAX_PD_CHANNELS; i++) { + for (j = 0; j < MEGASAS_MAX_DEV_PER_CHANNEL; j++) { + pd_index = i*MEGASAS_MAX_DEV_PER_CHANNEL + j; + sdev1 = scsi_device_lookup(host, i, j, 0); + if (instance->pd_list[pd_index].driveState == + MR_PD_STATE_SYSTEM) { + if (!sdev1) { + scsi_add_device(host, i, j, 0); + } + if (sdev1) + scsi_device_put(sdev1); + } else { + if (sdev1) { + scsi_remove_device(sdev1); + scsi_device_put(sdev1); + } + } + } + } + } + + if ( instance->aen_cmd != NULL ) { + kfree(ev); + return ; + } + + seq_num = instance->evt_detail->seq_num + 1; + + /* Register AEN with FW for latest sequence number plus 1 */ + class_locale.members.reserved = 0; + class_locale.members.locale = MR_EVT_LOCALE_ALL; + class_locale.members.class = MR_EVT_CLASS_DEBUG; + mutex_lock(&instance->aen_mutex); + error = megasas_register_aen(instance, seq_num, + class_locale.word); + mutex_unlock(&instance->aen_mutex); + + if (error) + printk(KERN_ERR "register aen failed error %x\n", error); + + kfree(ev); +} + + static DRIVER_ATTR(poll_mode_io, S_IRUGO|S_IWUGO, megasas_sysfs_show_poll_mode_io, megasas_sysfs_set_poll_mode_io); |