[SCSI] mpt fusion: Firmware event implementation using seperate WorkQueue
Now Firmware events are handled by firmware event queue. Previously it was handled in interrupt context/WorkQueue of Linux. Firmware Event handling is restructured and optimized. Signed-off-by: Kashyap Desai <kadesai@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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ea2a788de4
Коммит
3eb0822c67
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@ -1931,6 +1931,11 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
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*/
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mpt_detect_bound_ports(ioc, pdev);
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INIT_LIST_HEAD(&ioc->fw_event_list);
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spin_lock_init(&ioc->fw_event_lock);
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snprintf(ioc->fw_event_q_name, 20, "mpt/%d", ioc->id);
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ioc->fw_event_q = create_singlethread_workqueue(ioc->fw_event_q_name);
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if ((r = mpt_do_ioc_recovery(ioc, MPT_HOSTEVENT_IOC_BRINGUP,
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CAN_SLEEP)) != 0){
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printk(MYIOC_s_ERR_FMT "didn't initialize properly! (%d)\n",
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@ -2010,6 +2015,11 @@ mpt_detach(struct pci_dev *pdev)
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cancel_delayed_work(&ioc->fault_reset_work);
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destroy_workqueue(wq);
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spin_lock_irqsave(&ioc->fw_event_lock, flags);
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wq = ioc->fw_event_q;
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ioc->fw_event_q = NULL;
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spin_unlock_irqrestore(&ioc->fw_event_lock, flags);
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destroy_workqueue(wq);
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sprintf(pname, MPT_PROCFS_MPTBASEDIR "/%s/summary", ioc->name);
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remove_proc_entry(pname, NULL);
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@ -694,9 +694,18 @@ typedef struct _MPT_ADAPTER
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struct net_device *netdev;
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struct list_head sas_topology;
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struct mutex sas_topology_mutex;
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struct workqueue_struct *fw_event_q;
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struct list_head fw_event_list;
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spinlock_t fw_event_lock;
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u8 fw_events_off; /* if '1', then ignore events */
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char fw_event_q_name[20];
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struct mutex sas_discovery_mutex;
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u8 sas_discovery_runtime;
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u8 sas_discovery_ignore_events;
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struct list_head sas_device_info_list;
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struct mutex sas_device_info_mutex;
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u8 sas_discovery_quiesce_io;
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int sas_index; /* index refrencing */
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MPT_MGMT sas_mgmt;
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Разница между файлами не показана из-за своего большого размера
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@ -61,12 +61,30 @@ enum mptsas_hotplug_action {
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MPTSAS_DEL_DEVICE,
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MPTSAS_ADD_RAID,
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MPTSAS_DEL_RAID,
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MPTSAS_ADD_PHYSDISK,
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MPTSAS_ADD_PHYSDISK_REPROBE,
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MPTSAS_DEL_PHYSDISK,
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MPTSAS_DEL_PHYSDISK_REPROBE,
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MPTSAS_ADD_INACTIVE_VOLUME,
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MPTSAS_IGNORE_EVENT,
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};
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struct mptsas_mapping{
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u8 id;
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u8 channel;
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};
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struct mptsas_device_info {
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struct list_head list;
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struct mptsas_mapping os; /* operating system mapping*/
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struct mptsas_mapping fw; /* firmware mapping */
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u64 sas_address;
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u32 device_info; /* specific bits for devices */
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u16 slot; /* enclosure slot id */
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u64 enclosure_logical_id; /*enclosure address */
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};
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struct mptsas_hotplug_event {
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struct work_struct work;
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MPT_ADAPTER *ioc;
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enum mptsas_hotplug_action event_type;
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u64 sas_address;
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@ -74,11 +92,18 @@ struct mptsas_hotplug_event {
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u8 id;
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u32 device_info;
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u16 handle;
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u16 parent_handle;
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u8 phy_id;
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u8 phys_disk_num_valid; /* hrc (hidden raid component) */
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u8 phys_disk_num; /* hrc - unique index*/
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u8 hidden_raid_component; /* hrc - don't expose*/
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struct scsi_device *sdev;
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};
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struct fw_event_work {
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struct list_head list;
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struct delayed_work work;
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MPT_ADAPTER *ioc;
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u32 event;
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u8 retries;
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u8 event_data[1];
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};
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struct mptsas_discovery_event {
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