152 static void ibmvscsi_release_crq_queue(struct crq_queue *queue,  in ibmvscsi_release_crq_queue()  argument
166 			 queue->msg_token,  in ibmvscsi_release_crq_queue()
167 			 queue->size * sizeof(*queue->msgs), DMA_BIDIRECTIONAL);  in ibmvscsi_release_crq_queue()
168 	free_page((unsigned long)queue->msgs);  in ibmvscsi_release_crq_queue()
178 static struct viosrp_crq *crq_queue_next_crq(struct crq_queue *queue)  in crq_queue_next_crq()  argument
183 	spin_lock_irqsave(&queue->lock, flags);  in crq_queue_next_crq()
184 	crq = &queue->msgs[queue->cur];  in crq_queue_next_crq()
186 		if (++queue->cur == queue->size)  in crq_queue_next_crq()
187 			queue->cur = 0;  in crq_queue_next_crq()
195 	spin_unlock_irqrestore(&queue->lock, flags);  in crq_queue_next_crq()
232 		while ((crq = crq_queue_next_crq(&hostdata->queue)) != NULL) {  in ibmvscsi_task()
238 		crq = crq_queue_next_crq(&hostdata->queue);  in ibmvscsi_task()
296 static int ibmvscsi_reset_crq_queue(struct crq_queue *queue,  in ibmvscsi_reset_crq_queue()  argument
310 	memset(queue->msgs, 0x00, PAGE_SIZE);  in ibmvscsi_reset_crq_queue()
311 	queue->cur = 0;  in ibmvscsi_reset_crq_queue()
318 				queue->msg_token, PAGE_SIZE);  in ibmvscsi_reset_crq_queue()
337 static int ibmvscsi_init_crq_queue(struct crq_queue *queue,  in ibmvscsi_init_crq_queue()  argument
345 	queue->msgs = (struct viosrp_crq *)get_zeroed_page(GFP_KERNEL);  in ibmvscsi_init_crq_queue()
347 	if (!queue->msgs)  in ibmvscsi_init_crq_queue()
349 	queue->size = PAGE_SIZE / sizeof(*queue->msgs);  in ibmvscsi_init_crq_queue()
351 	queue->msg_token = dma_map_single(hostdata->dev, queue->msgs,  in ibmvscsi_init_crq_queue()
352 					  queue->size * sizeof(*queue->msgs),  in ibmvscsi_init_crq_queue()
355 	if (dma_mapping_error(hostdata->dev, queue->msg_token))  in ibmvscsi_init_crq_queue()
363 				queue->msg_token, PAGE_SIZE);  in ibmvscsi_init_crq_queue()
366 		rc = ibmvscsi_reset_crq_queue(queue,  in ibmvscsi_init_crq_queue()
378 	queue->cur = 0;  in ibmvscsi_init_crq_queue()
379 	spin_lock_init(&queue->lock);  in ibmvscsi_init_crq_queue()
410 			 queue->msg_token,  in ibmvscsi_init_crq_queue()
411 			 queue->size * sizeof(*queue->msgs), DMA_BIDIRECTIONAL);  in ibmvscsi_init_crq_queue()
413 	free_page((unsigned long)queue->msgs);  in ibmvscsi_init_crq_queue()
424 static int ibmvscsi_reenable_crq_queue(struct crq_queue *queue,  in ibmvscsi_reenable_crq_queue()  argument
2178 		rc = ibmvscsi_reset_crq_queue(&hostdata->queue, hostdata);  in ibmvscsi_do_work()
2185 		rc = ibmvscsi_reenable_crq_queue(&hostdata->queue, hostdata);  in ibmvscsi_do_work()
2282 	rc = ibmvscsi_init_crq_queue(&hostdata->queue, hostdata, max_events);  in ibmvscsi_probe()
2344 	ibmvscsi_release_crq_queue(&hostdata->queue, hostdata, max_events);  in ibmvscsi_probe()
2360 	ibmvscsi_release_crq_queue(&hostdata->queue, hostdata,  in ibmvscsi_remove()