41 	struct vfio_ccw_private *private = dev_get_drvdata(&sch->dev);  in vfio_ccw_sch_quiesce()  local
67 		private->completion = &completion;  in vfio_ccw_sch_quiesce()
73 		private->completion = NULL;  in vfio_ccw_sch_quiesce()
79 	private->state = VFIO_CCW_STATE_NOT_OPER;  in vfio_ccw_sch_quiesce()
86 	struct vfio_ccw_private *private;  in vfio_ccw_sch_io_todo()  local
90 	private = container_of(work, struct vfio_ccw_private, io_work);  in vfio_ccw_sch_io_todo()
91 	irb = &private->irb;  in vfio_ccw_sch_io_todo()
96 		cp_update_scsw(&private->cp, &irb->scsw);  in vfio_ccw_sch_io_todo()
97 		if (is_final && private->state == VFIO_CCW_STATE_CP_PENDING)  in vfio_ccw_sch_io_todo()
98 			cp_free(&private->cp);  in vfio_ccw_sch_io_todo()
100 	mutex_lock(&private->io_mutex);  in vfio_ccw_sch_io_todo()
101 	memcpy(private->io_region->irb_area, irb, sizeof(*irb));  in vfio_ccw_sch_io_todo()
102 	mutex_unlock(&private->io_mutex);  in vfio_ccw_sch_io_todo()
104 	if (private->mdev && is_final)  in vfio_ccw_sch_io_todo()
105 		private->state = VFIO_CCW_STATE_IDLE;  in vfio_ccw_sch_io_todo()
107 	if (private->io_trigger)  in vfio_ccw_sch_io_todo()
108 		eventfd_signal(private->io_trigger, 1);  in vfio_ccw_sch_io_todo()
113 	struct vfio_ccw_private *private;  in vfio_ccw_crw_todo()  local
115 	private = container_of(work, struct vfio_ccw_private, crw_work);  in vfio_ccw_crw_todo()
117 	if (!list_empty(&private->crw) && private->crw_trigger)  in vfio_ccw_crw_todo()
118 		eventfd_signal(private->crw_trigger, 1);  in vfio_ccw_crw_todo()
126 	struct vfio_ccw_private *private = dev_get_drvdata(&sch->dev);  in vfio_ccw_sch_irq()  local
129 	vfio_ccw_fsm_event(private, VFIO_CCW_EVENT_INTERRUPT);  in vfio_ccw_sch_irq()
132 static void vfio_ccw_free_regions(struct vfio_ccw_private *private)  in vfio_ccw_free_regions()  argument
134 	if (private->crw_region)  in vfio_ccw_free_regions()
135 		kmem_cache_free(vfio_ccw_crw_region, private->crw_region);  in vfio_ccw_free_regions()
136 	if (private->schib_region)  in vfio_ccw_free_regions()
137 		kmem_cache_free(vfio_ccw_schib_region, private->schib_region);  in vfio_ccw_free_regions()
138 	if (private->cmd_region)  in vfio_ccw_free_regions()
139 		kmem_cache_free(vfio_ccw_cmd_region, private->cmd_region);  in vfio_ccw_free_regions()
140 	if (private->io_region)  in vfio_ccw_free_regions()
141 		kmem_cache_free(vfio_ccw_io_region, private->io_region);  in vfio_ccw_free_regions()
147 	struct vfio_ccw_private *private;  in vfio_ccw_sch_probe()  local
156 	private = kzalloc(sizeof(*private), GFP_KERNEL | GFP_DMA);  in vfio_ccw_sch_probe()
157 	if (!private)  in vfio_ccw_sch_probe()
160 	private->cp.guest_cp = kcalloc(CCWCHAIN_LEN_MAX, sizeof(struct ccw1),  in vfio_ccw_sch_probe()
162 	if (!private->cp.guest_cp)  in vfio_ccw_sch_probe()
165 	private->io_region = kmem_cache_zalloc(vfio_ccw_io_region,  in vfio_ccw_sch_probe()
167 	if (!private->io_region)  in vfio_ccw_sch_probe()
170 	private->cmd_region = kmem_cache_zalloc(vfio_ccw_cmd_region,  in vfio_ccw_sch_probe()
172 	if (!private->cmd_region)  in vfio_ccw_sch_probe()
175 	private->schib_region = kmem_cache_zalloc(vfio_ccw_schib_region,  in vfio_ccw_sch_probe()
178 	if (!private->schib_region)  in vfio_ccw_sch_probe()
181 	private->crw_region = kmem_cache_zalloc(vfio_ccw_crw_region,  in vfio_ccw_sch_probe()
184 	if (!private->crw_region)  in vfio_ccw_sch_probe()
187 	private->sch = sch;  in vfio_ccw_sch_probe()
188 	dev_set_drvdata(&sch->dev, private);  in vfio_ccw_sch_probe()
189 	mutex_init(&private->io_mutex);  in vfio_ccw_sch_probe()
192 	private->state = VFIO_CCW_STATE_NOT_OPER;  in vfio_ccw_sch_probe()
199 	INIT_LIST_HEAD(&private->crw);  in vfio_ccw_sch_probe()
200 	INIT_WORK(&private->io_work, vfio_ccw_sch_io_todo);  in vfio_ccw_sch_probe()
201 	INIT_WORK(&private->crw_work, vfio_ccw_crw_todo);  in vfio_ccw_sch_probe()
202 	atomic_set(&private->avail, 1);  in vfio_ccw_sch_probe()
203 	private->state = VFIO_CCW_STATE_STANDBY;  in vfio_ccw_sch_probe()
223 	vfio_ccw_free_regions(private);  in vfio_ccw_sch_probe()
224 	kfree(private->cp.guest_cp);  in vfio_ccw_sch_probe()
225 	kfree(private);  in vfio_ccw_sch_probe()
231 	struct vfio_ccw_private *private = dev_get_drvdata(&sch->dev);  in vfio_ccw_sch_remove()  local
236 	list_for_each_entry_safe(crw, temp, &private->crw, next) {  in vfio_ccw_sch_remove()
245 	vfio_ccw_free_regions(private);  in vfio_ccw_sch_remove()
246 	kfree(private->cp.guest_cp);  in vfio_ccw_sch_remove()
247 	kfree(private);  in vfio_ccw_sch_remove()
272 	struct vfio_ccw_private *private = dev_get_drvdata(&sch->dev);  in vfio_ccw_sch_event()  local
284 		vfio_ccw_fsm_event(private, VFIO_CCW_EVENT_NOT_OPER);  in vfio_ccw_sch_event()
289 	private = dev_get_drvdata(&sch->dev);  in vfio_ccw_sch_event()
290 	if (private->state == VFIO_CCW_STATE_NOT_OPER) {  in vfio_ccw_sch_event()
291 		private->state = private->mdev ? VFIO_CCW_STATE_IDLE :  in vfio_ccw_sch_event()
302 static void vfio_ccw_queue_crw(struct vfio_ccw_private *private,  in vfio_ccw_queue_crw()  argument
325 	list_add_tail(&crw->next, &private->crw);  in vfio_ccw_queue_crw()
326 	queue_work(vfio_ccw_work_q, &private->crw_work);  in vfio_ccw_queue_crw()
332 	struct vfio_ccw_private *private = dev_get_drvdata(&sch->dev);  in vfio_ccw_chp_event()  local
336 	if (!private || !mask)  in vfio_ccw_chp_event()
339 	trace_vfio_ccw_chp_event(private->sch->schid, mask, event);  in vfio_ccw_chp_event()
341 			   mdev_uuid(private->mdev), sch->schid.cssid,  in vfio_ccw_chp_event()
360 		vfio_ccw_queue_crw(private, CRW_RSC_CPATH, CRW_ERC_PERRN,  in vfio_ccw_chp_event()
371 		vfio_ccw_queue_crw(private, CRW_RSC_CPATH, CRW_ERC_INIT,  in vfio_ccw_chp_event()