Lines Matching refs:shost
66 int scsi_host_set_state(struct Scsi_Host *shost, enum scsi_host_state state) in scsi_host_set_state() argument
68 enum scsi_host_state oldstate = shost->shost_state; in scsi_host_set_state()
139 shost->shost_state = state; in scsi_host_set_state()
144 shost_printk(KERN_ERR, shost, in scsi_host_set_state()
157 void scsi_remove_host(struct Scsi_Host *shost) in scsi_remove_host() argument
161 mutex_lock(&shost->scan_mutex); in scsi_remove_host()
162 spin_lock_irqsave(shost->host_lock, flags); in scsi_remove_host()
163 if (scsi_host_set_state(shost, SHOST_CANCEL)) in scsi_remove_host()
164 if (scsi_host_set_state(shost, SHOST_CANCEL_RECOVERY)) { in scsi_remove_host()
165 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_remove_host()
166 mutex_unlock(&shost->scan_mutex); in scsi_remove_host()
169 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_remove_host()
171 scsi_autopm_get_host(shost); in scsi_remove_host()
172 scsi_forget_host(shost); in scsi_remove_host()
173 mutex_unlock(&shost->scan_mutex); in scsi_remove_host()
174 scsi_proc_host_rm(shost); in scsi_remove_host()
176 spin_lock_irqsave(shost->host_lock, flags); in scsi_remove_host()
177 if (scsi_host_set_state(shost, SHOST_DEL)) in scsi_remove_host()
178 BUG_ON(scsi_host_set_state(shost, SHOST_DEL_RECOVERY)); in scsi_remove_host()
179 spin_unlock_irqrestore(shost->host_lock, flags); in scsi_remove_host()
181 transport_unregister_device(&shost->shost_gendev); in scsi_remove_host()
182 device_unregister(&shost->shost_dev); in scsi_remove_host()
183 device_del(&shost->shost_gendev); in scsi_remove_host()
200 int scsi_add_host_with_dma(struct Scsi_Host *shost, struct device *dev, in scsi_add_host_with_dma() argument
203 struct scsi_host_template *sht = shost->hostt; in scsi_add_host_with_dma()
206 printk(KERN_INFO "scsi%d : %s\n", shost->host_no, in scsi_add_host_with_dma()
207 sht->info ? sht->info(shost) : sht->name); in scsi_add_host_with_dma()
209 if (!shost->can_queue) { in scsi_add_host_with_dma()
215 error = scsi_setup_command_freelist(shost); in scsi_add_host_with_dma()
219 if (!shost->shost_gendev.parent) in scsi_add_host_with_dma()
220 shost->shost_gendev.parent = dev ? dev : &platform_bus; in scsi_add_host_with_dma()
222 dma_dev = shost->shost_gendev.parent; in scsi_add_host_with_dma()
224 shost->dma_dev = dma_dev; in scsi_add_host_with_dma()
226 error = device_add(&shost->shost_gendev); in scsi_add_host_with_dma()
230 pm_runtime_set_active(&shost->shost_gendev); in scsi_add_host_with_dma()
231 pm_runtime_enable(&shost->shost_gendev); in scsi_add_host_with_dma()
232 device_enable_async_suspend(&shost->shost_gendev); in scsi_add_host_with_dma()
234 scsi_host_set_state(shost, SHOST_RUNNING); in scsi_add_host_with_dma()
235 get_device(shost->shost_gendev.parent); in scsi_add_host_with_dma()
237 device_enable_async_suspend(&shost->shost_dev); in scsi_add_host_with_dma()
239 error = device_add(&shost->shost_dev); in scsi_add_host_with_dma()
243 get_device(&shost->shost_gendev); in scsi_add_host_with_dma()
245 if (shost->transportt->host_size) { in scsi_add_host_with_dma()
246 shost->shost_data = kzalloc(shost->transportt->host_size, in scsi_add_host_with_dma()
248 if (shost->shost_data == NULL) { in scsi_add_host_with_dma()
254 if (shost->transportt->create_work_queue) { in scsi_add_host_with_dma()
255 snprintf(shost->work_q_name, sizeof(shost->work_q_name), in scsi_add_host_with_dma()
256 "scsi_wq_%d", shost->host_no); in scsi_add_host_with_dma()
257 shost->work_q = create_singlethread_workqueue( in scsi_add_host_with_dma()
258 shost->work_q_name); in scsi_add_host_with_dma()
259 if (!shost->work_q) { in scsi_add_host_with_dma()
265 error = scsi_sysfs_add_host(shost); in scsi_add_host_with_dma()
269 scsi_proc_host_add(shost); in scsi_add_host_with_dma()
273 if (shost->work_q) in scsi_add_host_with_dma()
274 destroy_workqueue(shost->work_q); in scsi_add_host_with_dma()
276 kfree(shost->shost_data); in scsi_add_host_with_dma()
278 device_del(&shost->shost_dev); in scsi_add_host_with_dma()
280 device_del(&shost->shost_gendev); in scsi_add_host_with_dma()
282 scsi_destroy_command_freelist(shost); in scsi_add_host_with_dma()
290 struct Scsi_Host *shost = dev_to_shost(dev); in scsi_host_dev_release() local
295 scsi_proc_hostdir_rm(shost->hostt); in scsi_host_dev_release()
297 if (shost->ehandler) in scsi_host_dev_release()
298 kthread_stop(shost->ehandler); in scsi_host_dev_release()
299 if (shost->work_q) in scsi_host_dev_release()
300 destroy_workqueue(shost->work_q); in scsi_host_dev_release()
301 q = shost->uspace_req_q; in scsi_host_dev_release()
308 scsi_destroy_command_freelist(shost); in scsi_host_dev_release()
309 if (shost->bqt) in scsi_host_dev_release()
310 blk_free_tags(shost->bqt); in scsi_host_dev_release()
312 kfree(shost->shost_data); in scsi_host_dev_release()
316 kfree(shost); in scsi_host_dev_release()
339 struct Scsi_Host *shost; in scsi_host_alloc() local
345 shost = kzalloc(sizeof(struct Scsi_Host) + privsize, gfp_mask); in scsi_host_alloc()
346 if (!shost) in scsi_host_alloc()
349 shost->host_lock = &shost->default_lock; in scsi_host_alloc()
350 spin_lock_init(shost->host_lock); in scsi_host_alloc()
351 shost->shost_state = SHOST_CREATED; in scsi_host_alloc()
352 INIT_LIST_HEAD(&shost->__devices); in scsi_host_alloc()
353 INIT_LIST_HEAD(&shost->__targets); in scsi_host_alloc()
354 INIT_LIST_HEAD(&shost->eh_cmd_q); in scsi_host_alloc()
355 INIT_LIST_HEAD(&shost->starved_list); in scsi_host_alloc()
356 init_waitqueue_head(&shost->host_wait); in scsi_host_alloc()
358 mutex_init(&shost->scan_mutex); in scsi_host_alloc()
364 shost->host_no = atomic_inc_return(&scsi_host_next_hn) - 1; in scsi_host_alloc()
365 shost->dma_channel = 0xff; in scsi_host_alloc()
368 shost->max_channel = 0; in scsi_host_alloc()
369 shost->max_id = 8; in scsi_host_alloc()
370 shost->max_lun = 8; in scsi_host_alloc()
373 shost->transportt = &blank_transport_template; in scsi_host_alloc()
381 shost->max_cmd_len = 12; in scsi_host_alloc()
382 shost->hostt = sht; in scsi_host_alloc()
383 shost->this_id = sht->this_id; in scsi_host_alloc()
384 shost->can_queue = sht->can_queue; in scsi_host_alloc()
385 shost->sg_tablesize = sht->sg_tablesize; in scsi_host_alloc()
386 shost->sg_prot_tablesize = sht->sg_prot_tablesize; in scsi_host_alloc()
387 shost->cmd_per_lun = sht->cmd_per_lun; in scsi_host_alloc()
388 shost->unchecked_isa_dma = sht->unchecked_isa_dma; in scsi_host_alloc()
389 shost->use_clustering = sht->use_clustering; in scsi_host_alloc()
390 shost->ordered_tag = sht->ordered_tag; in scsi_host_alloc()
394 shost->active_mode = MODE_INITIATOR; in scsi_host_alloc()
396 shost->active_mode = sht->supported_mode; in scsi_host_alloc()
399 shost->max_host_blocked = sht->max_host_blocked; in scsi_host_alloc()
401 shost->max_host_blocked = SCSI_DEFAULT_HOST_BLOCKED; in scsi_host_alloc()
408 shost->max_sectors = sht->max_sectors; in scsi_host_alloc()
410 shost->max_sectors = SCSI_DEFAULT_MAX_SECTORS; in scsi_host_alloc()
416 shost->dma_boundary = sht->dma_boundary; in scsi_host_alloc()
418 shost->dma_boundary = 0xffffffff; in scsi_host_alloc()
420 device_initialize(&shost->shost_gendev); in scsi_host_alloc()
421 dev_set_name(&shost->shost_gendev, "host%d", shost->host_no); in scsi_host_alloc()
422 shost->shost_gendev.bus = &scsi_bus_type; in scsi_host_alloc()
423 shost->shost_gendev.type = &scsi_host_type; in scsi_host_alloc()
425 device_initialize(&shost->shost_dev); in scsi_host_alloc()
426 shost->shost_dev.parent = &shost->shost_gendev; in scsi_host_alloc()
427 shost->shost_dev.class = &shost_class; in scsi_host_alloc()
428 dev_set_name(&shost->shost_dev, "host%d", shost->host_no); in scsi_host_alloc()
429 shost->shost_dev.groups = scsi_sysfs_shost_attr_groups; in scsi_host_alloc()
431 shost->ehandler = kthread_run(scsi_error_handler, shost, in scsi_host_alloc()
432 "scsi_eh_%d", shost->host_no); in scsi_host_alloc()
433 if (IS_ERR(shost->ehandler)) { in scsi_host_alloc()
435 shost->host_no, PTR_ERR(shost->ehandler)); in scsi_host_alloc()
439 scsi_proc_hostdir_add(shost->hostt); in scsi_host_alloc()
440 return shost; in scsi_host_alloc()
443 kfree(shost); in scsi_host_alloc()
450 struct Scsi_Host *shost = scsi_host_alloc(sht, privsize); in scsi_register() local
458 if (shost) in scsi_register()
459 list_add_tail(&shost->sht_legacy_list, &sht->legacy_hosts); in scsi_register()
460 return shost; in scsi_register()
464 void scsi_unregister(struct Scsi_Host *shost) in scsi_unregister() argument
466 list_del(&shost->sht_legacy_list); in scsi_unregister()
467 scsi_host_put(shost); in scsi_unregister()
494 struct Scsi_Host *shost = NULL; in scsi_host_lookup() local
499 shost = scsi_host_get(class_to_shost(cdev)); in scsi_host_lookup()
502 return shost; in scsi_host_lookup()
510 struct Scsi_Host *scsi_host_get(struct Scsi_Host *shost) in scsi_host_get() argument
512 if ((shost->shost_state == SHOST_DEL) || in scsi_host_get()
513 !get_device(&shost->shost_gendev)) in scsi_host_get()
515 return shost; in scsi_host_get()
523 void scsi_host_put(struct Scsi_Host *shost) in scsi_host_put() argument
525 put_device(&shost->shost_gendev); in scsi_host_put()
555 int scsi_queue_work(struct Scsi_Host *shost, struct work_struct *work) in scsi_queue_work() argument
557 if (unlikely(!shost->work_q)) { in scsi_queue_work()
560 "when no workqueue created.\n", shost->hostt->name); in scsi_queue_work()
566 return queue_work(shost->work_q, work); in scsi_queue_work()
574 void scsi_flush_work(struct Scsi_Host *shost) in scsi_flush_work() argument
576 if (!shost->work_q) { in scsi_flush_work()
579 "when no workqueue created.\n", shost->hostt->name); in scsi_flush_work()
584 flush_workqueue(shost->work_q); in scsi_flush_work()