24 can_rx_offload_le(struct can_rx_offload *offload,  in can_rx_offload_le()  argument
27 	if (offload->inc)  in can_rx_offload_le()
34 can_rx_offload_inc(struct can_rx_offload *offload, unsigned int *val)  in can_rx_offload_inc()  argument
36 	if (offload->inc)  in can_rx_offload_inc()
44 	struct can_rx_offload *offload = container_of(napi,  in can_rx_offload_napi_poll()  local
47 	struct net_device *dev = offload->dev;  in can_rx_offload_napi_poll()
53 	       (skb = skb_dequeue(&offload->skb_queue))) {  in can_rx_offload_napi_poll()
66 		if (!skb_queue_empty(&offload->skb_queue))  in can_rx_offload_napi_poll()
67 			napi_reschedule(&offload->napi);  in can_rx_offload_napi_poll()
70 	can_led_event(offload->dev, CAN_LED_EVENT_RX);  in can_rx_offload_napi_poll()
140 can_rx_offload_offload_one(struct can_rx_offload *offload, unsigned int n)  in can_rx_offload_offload_one()  argument
148 	if (unlikely(skb_queue_len(&offload->skb_queue) >  in can_rx_offload_offload_one()
149 		     offload->skb_queue_len_max))  in can_rx_offload_offload_one()
152 	skb = offload->mailbox_read(offload, n, &timestamp, drop);  in can_rx_offload_offload_one()
161 		offload->dev->stats.rx_dropped++;  in can_rx_offload_offload_one()
162 		offload->dev->stats.rx_fifo_errors++;  in can_rx_offload_offload_one()
174 int can_rx_offload_irq_offload_timestamp(struct can_rx_offload *offload,  in can_rx_offload_irq_offload_timestamp()  argument
182 	for (i = offload->mb_first;  in can_rx_offload_irq_offload_timestamp()
183 	     can_rx_offload_le(offload, i, offload->mb_last);  in can_rx_offload_irq_offload_timestamp()
184 	     can_rx_offload_inc(offload, &i)) {  in can_rx_offload_irq_offload_timestamp()
190 		skb = can_rx_offload_offload_one(offload, i);  in can_rx_offload_irq_offload_timestamp()
201 		spin_lock_irqsave(&offload->skb_queue.lock, flags);  in can_rx_offload_irq_offload_timestamp()
202 		skb_queue_splice_tail(&skb_queue, &offload->skb_queue);  in can_rx_offload_irq_offload_timestamp()
203 		spin_unlock_irqrestore(&offload->skb_queue.lock, flags);  in can_rx_offload_irq_offload_timestamp()
205 		queue_len = skb_queue_len(&offload->skb_queue);  in can_rx_offload_irq_offload_timestamp()
206 		if (queue_len > offload->skb_queue_len_max / 8)  in can_rx_offload_irq_offload_timestamp()
207 			netdev_dbg(offload->dev, "%s: queue_len=%d\n",  in can_rx_offload_irq_offload_timestamp()
210 		can_rx_offload_schedule(offload);  in can_rx_offload_irq_offload_timestamp()
217 int can_rx_offload_irq_offload_fifo(struct can_rx_offload *offload)  in can_rx_offload_irq_offload_fifo()  argument
223 		skb = can_rx_offload_offload_one(offload, 0);  in can_rx_offload_irq_offload_fifo()
229 		skb_queue_tail(&offload->skb_queue, skb);  in can_rx_offload_irq_offload_fifo()
234 		can_rx_offload_schedule(offload);  in can_rx_offload_irq_offload_fifo()
240 int can_rx_offload_queue_sorted(struct can_rx_offload *offload,  in can_rx_offload_queue_sorted()  argument
246 	if (skb_queue_len(&offload->skb_queue) >  in can_rx_offload_queue_sorted()
247 	    offload->skb_queue_len_max) {  in can_rx_offload_queue_sorted()
255 	spin_lock_irqsave(&offload->skb_queue.lock, flags);  in can_rx_offload_queue_sorted()
256 	__skb_queue_add_sort(&offload->skb_queue, skb, can_rx_offload_compare);  in can_rx_offload_queue_sorted()
257 	spin_unlock_irqrestore(&offload->skb_queue.lock, flags);  in can_rx_offload_queue_sorted()
259 	can_rx_offload_schedule(offload);  in can_rx_offload_queue_sorted()
265 unsigned int can_rx_offload_get_echo_skb(struct can_rx_offload *offload,  in can_rx_offload_get_echo_skb()  argument
268 	struct net_device *dev = offload->dev;  in can_rx_offload_get_echo_skb()
278 	err = can_rx_offload_queue_sorted(offload, skb, timestamp);  in can_rx_offload_get_echo_skb()
288 int can_rx_offload_queue_tail(struct can_rx_offload *offload,  in can_rx_offload_queue_tail()  argument
291 	if (skb_queue_len(&offload->skb_queue) >  in can_rx_offload_queue_tail()
292 	    offload->skb_queue_len_max) {  in can_rx_offload_queue_tail()
297 	skb_queue_tail(&offload->skb_queue, skb);  in can_rx_offload_queue_tail()
298 	can_rx_offload_schedule(offload);  in can_rx_offload_queue_tail()
305 				     struct can_rx_offload *offload,  in can_rx_offload_init_queue()  argument
308 	offload->dev = dev;  in can_rx_offload_init_queue()
311 	offload->skb_queue_len_max = 2 << fls(weight);  in can_rx_offload_init_queue()
312 	offload->skb_queue_len_max *= 4;  in can_rx_offload_init_queue()
313 	skb_queue_head_init(&offload->skb_queue);  in can_rx_offload_init_queue()
315 	netif_napi_add(dev, &offload->napi, can_rx_offload_napi_poll, weight);  in can_rx_offload_init_queue()
318 		__func__, offload->skb_queue_len_max);  in can_rx_offload_init_queue()
324 				 struct can_rx_offload *offload)  in can_rx_offload_add_timestamp()  argument
328 	if (offload->mb_first > BITS_PER_LONG_LONG ||  in can_rx_offload_add_timestamp()
329 	    offload->mb_last > BITS_PER_LONG_LONG || !offload->mailbox_read)  in can_rx_offload_add_timestamp()
332 	if (offload->mb_first < offload->mb_last) {  in can_rx_offload_add_timestamp()
333 		offload->inc = true;  in can_rx_offload_add_timestamp()
334 		weight = offload->mb_last - offload->mb_first;  in can_rx_offload_add_timestamp()
336 		offload->inc = false;  in can_rx_offload_add_timestamp()
337 		weight = offload->mb_first - offload->mb_last;  in can_rx_offload_add_timestamp()
340 	return can_rx_offload_init_queue(dev, offload, weight);  in can_rx_offload_add_timestamp()
345 			    struct can_rx_offload *offload, unsigned int weight)  in can_rx_offload_add_fifo()  argument
347 	if (!offload->mailbox_read)  in can_rx_offload_add_fifo()
350 	return can_rx_offload_init_queue(dev, offload, weight);  in can_rx_offload_add_fifo()
355 			      struct can_rx_offload *offload,  in can_rx_offload_add_manual()  argument
358 	if (offload->mailbox_read)  in can_rx_offload_add_manual()
361 	return can_rx_offload_init_queue(dev, offload, weight);  in can_rx_offload_add_manual()
365 void can_rx_offload_enable(struct can_rx_offload *offload)  in can_rx_offload_enable()  argument
367 	napi_enable(&offload->napi);  in can_rx_offload_enable()
371 void can_rx_offload_del(struct can_rx_offload *offload)  in can_rx_offload_del()  argument
373 	netif_napi_del(&offload->napi);  in can_rx_offload_del()
374 	skb_queue_purge(&offload->skb_queue);  in can_rx_offload_del()