Lines Matching +full:overrun +full:- +full:throttle +full:- +full:ms
3 * Copyright (C) 2000-2005 by David Brownell
4 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
22 * kinds of full and high speed networking devices: host-to-host cables,
49 #define DRIVER_VERSION "22-Aug-2005"
52 /*-------------------------------------------------------------------------*/
55 * Nineteen USB 1.1 max size bulk transactions per frame (ms), max.
66 #define RX_QLEN(dev) ((dev)->rx_qlen)
67 #define TX_QLEN(dev) ((dev)->tx_qlen)
72 /* throttle rx/tx briefly after some faults, so hub_wq might disconnect()
80 /*-------------------------------------------------------------------------*/
86 static int msg_level = -1;
90 /*-------------------------------------------------------------------------*/
100 for (tmp = 0; tmp < intf->num_altsetting; tmp++) { in usbnet_get_endpoints()
104 alt = intf->altsetting + tmp; in usbnet_get_endpoints()
106 /* take the first altsetting with in-bulk + out-bulk; in usbnet_get_endpoints()
110 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { in usbnet_get_endpoints()
114 e = alt->endpoint + ep; in usbnet_get_endpoints()
117 if (!usb_endpoint_maxp(&e->desc)) in usbnet_get_endpoints()
120 switch (e->desc.bmAttributes) { in usbnet_get_endpoints()
122 if (!usb_endpoint_dir_in(&e->desc)) in usbnet_get_endpoints()
131 if (usb_endpoint_dir_in(&e->desc)) { in usbnet_get_endpoints()
145 return -EINVAL; in usbnet_get_endpoints()
147 if (alt->desc.bAlternateSetting != 0 || in usbnet_get_endpoints()
148 !(dev->driver_info->flags & FLAG_NO_SETINT)) { in usbnet_get_endpoints()
149 tmp = usb_set_interface (dev->udev, alt->desc.bInterfaceNumber, in usbnet_get_endpoints()
150 alt->desc.bAlternateSetting); in usbnet_get_endpoints()
155 dev->in = usb_rcvbulkpipe (dev->udev, in usbnet_get_endpoints()
156 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); in usbnet_get_endpoints()
157 dev->out = usb_sndbulkpipe (dev->udev, in usbnet_get_endpoints()
158 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); in usbnet_get_endpoints()
159 dev->status = status; in usbnet_get_endpoints()
166 int tmp = -1, ret; in usbnet_get_ethernet_addr()
169 ret = usb_string(dev->udev, iMACAddress, buf, sizeof buf); in usbnet_get_ethernet_addr()
171 tmp = hex2bin(dev->net->dev_addr, buf, 6); in usbnet_get_ethernet_addr()
173 dev_dbg(&dev->udev->dev, in usbnet_get_ethernet_addr()
176 ret = -EINVAL; in usbnet_get_ethernet_addr()
185 struct usbnet *dev = urb->context; in intr_complete()
186 int status = urb->status; in intr_complete()
191 dev->driver_info->status(dev, urb); in intr_complete()
194 /* software-driven interface shutdown */ in intr_complete()
195 case -ENOENT: /* urb killed */ in intr_complete()
196 case -ESHUTDOWN: /* hardware gone */ in intr_complete()
197 netif_dbg(dev, ifdown, dev->net, in intr_complete()
205 netdev_dbg(dev->net, "intr status %d\n", status); in intr_complete()
211 netif_err(dev, timer, dev->net, in intr_complete()
212 "intr resubmit --> %d\n", status); in intr_complete()
222 if (!dev->driver_info->status) in init_status()
225 pipe = usb_rcvintpipe (dev->udev, in init_status()
226 dev->status->desc.bEndpointAddress in init_status()
228 maxp = usb_maxpacket (dev->udev, pipe, 0); in init_status()
231 period = max ((int) dev->status->desc.bInterval, in init_status()
232 (dev->udev->speed == USB_SPEED_HIGH) ? 7 : 3); in init_status()
236 dev->interrupt = usb_alloc_urb (0, GFP_KERNEL); in init_status()
237 if (!dev->interrupt) { in init_status()
239 return -ENOMEM; in init_status()
241 usb_fill_int_urb(dev->interrupt, dev->udev, pipe, in init_status()
243 dev->interrupt->transfer_flags |= URB_FREE_BUFFER; in init_status()
244 dev_dbg(&intf->dev, in init_status()
257 WARN_ON_ONCE(dev->interrupt == NULL); in usbnet_status_start()
258 if (dev->interrupt) { in usbnet_status_start()
259 mutex_lock(&dev->interrupt_mutex); in usbnet_status_start()
261 if (++dev->interrupt_count == 1) in usbnet_status_start()
262 ret = usb_submit_urb(dev->interrupt, mem_flags); in usbnet_status_start()
264 dev_dbg(&dev->udev->dev, "incremented interrupt URB count to %d\n", in usbnet_status_start()
265 dev->interrupt_count); in usbnet_status_start()
266 mutex_unlock(&dev->interrupt_mutex); in usbnet_status_start()
277 mutex_lock(&dev->interrupt_mutex); in __usbnet_status_start_force()
278 if (dev->interrupt_count) { in __usbnet_status_start_force()
279 ret = usb_submit_urb(dev->interrupt, mem_flags); in __usbnet_status_start_force()
280 dev_dbg(&dev->udev->dev, in __usbnet_status_start_force()
283 mutex_unlock(&dev->interrupt_mutex); in __usbnet_status_start_force()
290 if (dev->interrupt) { in usbnet_status_stop()
291 mutex_lock(&dev->interrupt_mutex); in usbnet_status_stop()
292 WARN_ON(dev->interrupt_count == 0); in usbnet_status_stop()
294 if (dev->interrupt_count && --dev->interrupt_count == 0) in usbnet_status_stop()
295 usb_kill_urb(dev->interrupt); in usbnet_status_stop()
297 dev_dbg(&dev->udev->dev, in usbnet_status_stop()
299 dev->interrupt_count); in usbnet_status_stop()
300 mutex_unlock(&dev->interrupt_mutex); in usbnet_status_stop()
308 if (dev->interrupt) { in __usbnet_status_stop_force()
309 mutex_lock(&dev->interrupt_mutex); in __usbnet_status_stop_force()
310 usb_kill_urb(dev->interrupt); in __usbnet_status_stop_force()
311 dev_dbg(&dev->udev->dev, "killed interrupt URB for suspend\n"); in __usbnet_status_stop_force()
312 mutex_unlock(&dev->interrupt_mutex); in __usbnet_status_stop_force()
322 struct pcpu_sw_netstats *stats64 = this_cpu_ptr(dev->stats64); in usbnet_skb_return()
326 if (test_bit(EVENT_RX_PAUSED, &dev->flags)) { in usbnet_skb_return()
327 skb_queue_tail(&dev->rxq_pause, skb); in usbnet_skb_return()
332 if (skb->protocol == 0) in usbnet_skb_return()
333 skb->protocol = eth_type_trans (skb, dev->net); in usbnet_skb_return()
335 flags = u64_stats_update_begin_irqsave(&stats64->syncp); in usbnet_skb_return()
336 stats64->rx_packets++; in usbnet_skb_return()
337 stats64->rx_bytes += skb->len; in usbnet_skb_return()
338 u64_stats_update_end_irqrestore(&stats64->syncp, flags); in usbnet_skb_return()
340 netif_dbg(dev, rx_status, dev->net, "< rx, len %zu, type 0x%x\n", in usbnet_skb_return()
341 skb->len + sizeof (struct ethhdr), skb->protocol); in usbnet_skb_return()
342 memset (skb->cb, 0, sizeof (struct skb_data)); in usbnet_skb_return()
349 netif_dbg(dev, rx_err, dev->net, in usbnet_skb_return()
357 enum usb_device_speed speed = dev->udev->speed; in usbnet_update_max_qlen()
359 if (!dev->rx_urb_size || !dev->hard_mtu) in usbnet_update_max_qlen()
363 dev->rx_qlen = MAX_QUEUE_MEMORY / dev->rx_urb_size; in usbnet_update_max_qlen()
364 dev->tx_qlen = MAX_QUEUE_MEMORY / dev->hard_mtu; in usbnet_update_max_qlen()
369 * Not take default 5ms qlen for super speed HC to in usbnet_update_max_qlen()
370 * save memory, and iperf tests show 2.5ms qlen can in usbnet_update_max_qlen()
373 dev->rx_qlen = 5 * MAX_QUEUE_MEMORY / dev->rx_urb_size; in usbnet_update_max_qlen()
374 dev->tx_qlen = 5 * MAX_QUEUE_MEMORY / dev->hard_mtu; in usbnet_update_max_qlen()
378 dev->rx_qlen = dev->tx_qlen = 4; in usbnet_update_max_qlen()
384 /*-------------------------------------------------------------------------
388 *-------------------------------------------------------------------------*/
393 int ll_mtu = new_mtu + net->hard_header_len; in usbnet_change_mtu()
394 int old_hard_mtu = dev->hard_mtu; in usbnet_change_mtu()
395 int old_rx_urb_size = dev->rx_urb_size; in usbnet_change_mtu()
397 // no second zero-length packet read wanted after mtu-sized packets in usbnet_change_mtu()
398 if ((ll_mtu % dev->maxpacket) == 0) in usbnet_change_mtu()
399 return -EDOM; in usbnet_change_mtu()
400 net->mtu = new_mtu; in usbnet_change_mtu()
402 dev->hard_mtu = net->mtu + net->hard_header_len; in usbnet_change_mtu()
403 if (dev->rx_urb_size == old_hard_mtu) { in usbnet_change_mtu()
404 dev->rx_urb_size = dev->hard_mtu; in usbnet_change_mtu()
405 if (dev->rx_urb_size > old_rx_urb_size) { in usbnet_change_mtu()
419 /* The caller must hold list->lock */
423 struct skb_data *entry = (struct skb_data *) newsk->cb; in __usbnet_queue_skb()
426 entry->state = state; in __usbnet_queue_skb()
429 /*-------------------------------------------------------------------------*/
440 struct skb_data *entry = (struct skb_data *) skb->cb; in defer_bh()
442 spin_lock_irqsave(&list->lock, flags); in defer_bh()
443 old_state = entry->state; in defer_bh()
444 entry->state = state; in defer_bh()
447 /* defer_bh() is never called with list == &dev->done. in defer_bh()
449 * dev->done.lock here with list->lock held. in defer_bh()
451 spin_lock_nested(&dev->done.lock, SINGLE_DEPTH_NESTING); in defer_bh()
453 __skb_queue_tail(&dev->done, skb); in defer_bh()
454 if (dev->done.qlen == 1) in defer_bh()
455 tasklet_schedule(&dev->bh); in defer_bh()
456 spin_unlock(&dev->done.lock); in defer_bh()
457 spin_unlock_irqrestore(&list->lock, flags); in defer_bh()
468 set_bit (work, &dev->flags); in usbnet_defer_kevent()
469 if (!schedule_work (&dev->kevent)) in usbnet_defer_kevent()
470 netdev_dbg(dev->net, "kevent %d may have been dropped\n", work); in usbnet_defer_kevent()
472 netdev_dbg(dev->net, "kevent %d scheduled\n", work); in usbnet_defer_kevent()
476 /*-------------------------------------------------------------------------*/
486 size_t size = dev->rx_urb_size; in rx_submit()
489 if (test_bit(EVENT_RX_KILL, &dev->flags)) { in rx_submit()
491 return -ENOLINK; in rx_submit()
494 if (test_bit(EVENT_NO_IP_ALIGN, &dev->flags)) in rx_submit()
495 skb = __netdev_alloc_skb(dev->net, size, flags); in rx_submit()
497 skb = __netdev_alloc_skb_ip_align(dev->net, size, flags); in rx_submit()
499 netif_dbg(dev, rx_err, dev->net, "no rx skb\n"); in rx_submit()
502 return -ENOMEM; in rx_submit()
505 entry = (struct skb_data *) skb->cb; in rx_submit()
506 entry->urb = urb; in rx_submit()
507 entry->dev = dev; in rx_submit()
508 entry->length = 0; in rx_submit()
510 usb_fill_bulk_urb (urb, dev->udev, dev->in, in rx_submit()
511 skb->data, size, rx_complete, skb); in rx_submit()
513 spin_lock_irqsave (&dev->rxq.lock, lockflags); in rx_submit()
515 if (netif_running (dev->net) && in rx_submit()
516 netif_device_present (dev->net) && in rx_submit()
517 test_bit(EVENT_DEV_OPEN, &dev->flags) && in rx_submit()
518 !test_bit (EVENT_RX_HALT, &dev->flags) && in rx_submit()
519 !test_bit (EVENT_DEV_ASLEEP, &dev->flags)) { in rx_submit()
521 case -EPIPE: in rx_submit()
524 case -ENOMEM: in rx_submit()
527 case -ENODEV: in rx_submit()
528 netif_dbg(dev, ifdown, dev->net, "device gone\n"); in rx_submit()
529 netif_device_detach (dev->net); in rx_submit()
531 case -EHOSTUNREACH: in rx_submit()
532 retval = -ENOLINK; in rx_submit()
535 netif_dbg(dev, rx_err, dev->net, in rx_submit()
537 tasklet_schedule (&dev->bh); in rx_submit()
540 __usbnet_queue_skb(&dev->rxq, skb, rx_start); in rx_submit()
543 netif_dbg(dev, ifdown, dev->net, "rx: stopped\n"); in rx_submit()
544 retval = -ENOLINK; in rx_submit()
546 spin_unlock_irqrestore (&dev->rxq.lock, lockflags); in rx_submit()
555 /*-------------------------------------------------------------------------*/
559 if (dev->driver_info->rx_fixup && in rx_process()
560 !dev->driver_info->rx_fixup (dev, skb)) { in rx_process()
562 if (!(dev->driver_info->flags & FLAG_RX_ASSEMBLE)) in rx_process()
563 dev->net->stats.rx_errors++; in rx_process()
569 if (dev->driver_info->flags & FLAG_MULTI_PACKET) in rx_process()
572 if (skb->len < ETH_HLEN) { in rx_process()
573 dev->net->stats.rx_errors++; in rx_process()
574 dev->net->stats.rx_length_errors++; in rx_process()
575 netif_dbg(dev, rx_err, dev->net, "rx length %d\n", skb->len); in rx_process()
582 skb_queue_tail(&dev->done, skb); in rx_process()
585 /*-------------------------------------------------------------------------*/
589 struct sk_buff *skb = (struct sk_buff *) urb->context; in rx_complete()
590 struct skb_data *entry = (struct skb_data *) skb->cb; in rx_complete()
591 struct usbnet *dev = entry->dev; in rx_complete()
592 int urb_status = urb->status; in rx_complete()
595 skb_put (skb, urb->actual_length); in rx_complete()
597 entry->urb = NULL; in rx_complete()
609 case -EPIPE: in rx_complete()
610 dev->net->stats.rx_errors++; in rx_complete()
614 /* software-driven interface shutdown */ in rx_complete()
615 case -ECONNRESET: /* async unlink */ in rx_complete()
616 case -ESHUTDOWN: /* hardware gone */ in rx_complete()
617 netif_dbg(dev, ifdown, dev->net, in rx_complete()
622 * throttle down resubmits, to avoid log floods; just temporarily, in rx_complete()
625 case -EPROTO: in rx_complete()
626 case -ETIME: in rx_complete()
627 case -EILSEQ: in rx_complete()
628 dev->net->stats.rx_errors++; in rx_complete()
629 if (!timer_pending (&dev->delay)) { in rx_complete()
630 mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES); in rx_complete()
631 netif_dbg(dev, link, dev->net, in rx_complete()
632 "rx throttle %d\n", urb_status); in rx_complete()
636 entry->urb = urb; in rx_complete()
640 /* data overrun ... flush fifo? */ in rx_complete()
641 case -EOVERFLOW: in rx_complete()
642 dev->net->stats.rx_over_errors++; in rx_complete()
647 dev->net->stats.rx_errors++; in rx_complete()
648 netif_dbg(dev, rx_err, dev->net, "rx status %d\n", urb_status); in rx_complete()
653 if (++dev->pkt_cnt > 30) { in rx_complete()
654 dev->pkt_cnt = 0; in rx_complete()
655 dev->pkt_err = 0; in rx_complete()
658 dev->pkt_err++; in rx_complete()
659 if (dev->pkt_err > 20) in rx_complete()
660 set_bit(EVENT_RX_KILL, &dev->flags); in rx_complete()
663 state = defer_bh(dev, skb, &dev->rxq, state); in rx_complete()
666 if (netif_running (dev->net) && in rx_complete()
667 !test_bit (EVENT_RX_HALT, &dev->flags) && in rx_complete()
670 usb_mark_last_busy(dev->udev); in rx_complete()
675 netif_dbg(dev, rx_err, dev->net, "no read resubmitted\n"); in rx_complete()
678 /*-------------------------------------------------------------------------*/
681 set_bit(EVENT_RX_PAUSED, &dev->flags); in usbnet_pause_rx()
683 netif_dbg(dev, rx_status, dev->net, "paused rx queue enabled\n"); in usbnet_pause_rx()
692 clear_bit(EVENT_RX_PAUSED, &dev->flags); in usbnet_resume_rx()
694 while ((skb = skb_dequeue(&dev->rxq_pause)) != NULL) { in usbnet_resume_rx()
699 tasklet_schedule(&dev->bh); in usbnet_resume_rx()
701 netif_dbg(dev, rx_status, dev->net, in usbnet_resume_rx()
708 skb_queue_purge(&dev->rxq_pause); in usbnet_purge_paused_rxq()
712 /*-------------------------------------------------------------------------*/
722 spin_lock_irqsave (&q->lock, flags); in unlink_urbs()
729 entry = (struct skb_data *) skb->cb; in unlink_urbs()
730 if (entry->state != unlink_start) in unlink_urbs()
735 entry->state = unlink_start; in unlink_urbs()
736 urb = entry->urb; in unlink_urbs()
741 * use-after-free problem inside usb_unlink_urb since in unlink_urbs()
746 spin_unlock_irqrestore(&q->lock, flags); in unlink_urbs()
747 // during some PM-driven resume scenarios, in unlink_urbs()
750 if (retval != -EINPROGRESS && retval != 0) in unlink_urbs()
751 netdev_dbg(dev->net, "unlink urb err, %d\n", retval); in unlink_urbs()
755 spin_lock_irqsave(&q->lock, flags); in unlink_urbs()
757 spin_unlock_irqrestore (&q->lock, flags); in unlink_urbs()
766 if (netif_running(dev->net)) { in usbnet_unlink_rx_urbs()
767 (void) unlink_urbs (dev, &dev->rxq); in usbnet_unlink_rx_urbs()
768 tasklet_schedule(&dev->bh); in usbnet_unlink_rx_urbs()
773 /*-------------------------------------------------------------------------*/
779 spin_lock_irqsave(&q->lock, flags); in wait_skb_queue_empty()
781 spin_unlock_irqrestore(&q->lock, flags); in wait_skb_queue_empty()
784 spin_lock_irqsave(&q->lock, flags); in wait_skb_queue_empty()
786 spin_unlock_irqrestore(&q->lock, flags); in wait_skb_queue_empty()
796 add_wait_queue(&dev->wait, &wait); in usbnet_terminate_urbs()
798 temp = unlink_urbs(dev, &dev->txq) + in usbnet_terminate_urbs()
799 unlink_urbs(dev, &dev->rxq); in usbnet_terminate_urbs()
802 wait_skb_queue_empty(&dev->rxq); in usbnet_terminate_urbs()
803 wait_skb_queue_empty(&dev->txq); in usbnet_terminate_urbs()
804 wait_skb_queue_empty(&dev->done); in usbnet_terminate_urbs()
805 netif_dbg(dev, ifdown, dev->net, in usbnet_terminate_urbs()
808 remove_wait_queue(&dev->wait, &wait); in usbnet_terminate_urbs()
814 struct driver_info *info = dev->driver_info; in usbnet_stop()
817 clear_bit(EVENT_DEV_OPEN, &dev->flags); in usbnet_stop()
820 netif_info(dev, ifdown, dev->net, in usbnet_stop()
822 net->stats.rx_packets, net->stats.tx_packets, in usbnet_stop()
823 net->stats.rx_errors, net->stats.tx_errors); in usbnet_stop()
826 pm = usb_autopm_get_interface(dev->intf); in usbnet_stop()
829 if (info->stop) { in usbnet_stop()
830 retval = info->stop(dev); in usbnet_stop()
832 netif_info(dev, ifdown, dev->net, in usbnet_stop()
833 "stop fail (%d) usbnet usb-%s-%s, %s\n", in usbnet_stop()
835 dev->udev->bus->bus_name, dev->udev->devpath, in usbnet_stop()
836 info->description); in usbnet_stop()
839 if (!(info->flags & FLAG_AVOID_UNLINK_URBS)) in usbnet_stop()
846 mpn = !test_and_clear_bit(EVENT_NO_RUNTIME_PM, &dev->flags); in usbnet_stop()
852 dev->flags = 0; in usbnet_stop()
853 del_timer_sync (&dev->delay); in usbnet_stop()
854 tasklet_kill (&dev->bh); in usbnet_stop()
856 usb_autopm_put_interface(dev->intf); in usbnet_stop()
858 if (info->manage_power && mpn) in usbnet_stop()
859 info->manage_power(dev, 0); in usbnet_stop()
861 usb_autopm_put_interface(dev->intf); in usbnet_stop()
867 /*-------------------------------------------------------------------------*/
877 struct driver_info *info = dev->driver_info; in usbnet_open()
879 if ((retval = usb_autopm_get_interface(dev->intf)) < 0) { in usbnet_open()
880 netif_info(dev, ifup, dev->net, in usbnet_open()
881 "resumption fail (%d) usbnet usb-%s-%s, %s\n", in usbnet_open()
883 dev->udev->bus->bus_name, in usbnet_open()
884 dev->udev->devpath, in usbnet_open()
885 info->description); in usbnet_open()
890 if (info->reset && (retval = info->reset (dev)) < 0) { in usbnet_open()
891 netif_info(dev, ifup, dev->net, in usbnet_open()
892 "open reset fail (%d) usbnet usb-%s-%s, %s\n", in usbnet_open()
894 dev->udev->bus->bus_name, in usbnet_open()
895 dev->udev->devpath, in usbnet_open()
896 info->description); in usbnet_open()
904 if (info->check_connect && (retval = info->check_connect (dev)) < 0) { in usbnet_open()
905 netif_dbg(dev, ifup, dev->net, "can't open; %d\n", retval); in usbnet_open()
910 if (dev->interrupt) { in usbnet_open()
913 netif_err(dev, ifup, dev->net, in usbnet_open()
919 set_bit(EVENT_DEV_OPEN, &dev->flags); in usbnet_open()
921 netif_info(dev, ifup, dev->net, in usbnet_open()
924 dev->net->mtu, in usbnet_open()
925 (dev->driver_info->flags & FLAG_FRAMING_NC) ? "NetChip" : in usbnet_open()
926 (dev->driver_info->flags & FLAG_FRAMING_GL) ? "GeneSys" : in usbnet_open()
927 (dev->driver_info->flags & FLAG_FRAMING_Z) ? "Zaurus" : in usbnet_open()
928 (dev->driver_info->flags & FLAG_FRAMING_RN) ? "RNDIS" : in usbnet_open()
929 (dev->driver_info->flags & FLAG_FRAMING_AX) ? "ASIX" : in usbnet_open()
933 dev->pkt_cnt = 0; in usbnet_open()
934 dev->pkt_err = 0; in usbnet_open()
935 clear_bit(EVENT_RX_KILL, &dev->flags); in usbnet_open()
938 tasklet_schedule (&dev->bh); in usbnet_open()
939 if (info->manage_power) { in usbnet_open()
940 retval = info->manage_power(dev, 1); in usbnet_open()
943 set_bit(EVENT_NO_RUNTIME_PM, &dev->flags); in usbnet_open()
945 usb_autopm_put_interface(dev->intf); in usbnet_open()
950 usb_autopm_put_interface(dev->intf); in usbnet_open()
956 /*-------------------------------------------------------------------------*/
967 if (!dev->mii.mdio_read) in usbnet_get_link_ksettings()
968 return -EOPNOTSUPP; in usbnet_get_link_ksettings()
970 mii_ethtool_get_link_ksettings(&dev->mii, cmd); in usbnet_get_link_ksettings()
982 if (!dev->mii.mdio_write) in usbnet_set_link_ksettings()
983 return -EOPNOTSUPP; in usbnet_set_link_ksettings()
985 retval = mii_ethtool_set_link_ksettings(&dev->mii, cmd); in usbnet_set_link_ksettings()
988 if (dev->driver_info->link_reset) in usbnet_set_link_ksettings()
989 dev->driver_info->link_reset(dev); in usbnet_set_link_ksettings()
1004 netdev_stats_to_stats64(stats, &net->stats); in usbnet_get_stats64()
1011 stats64 = per_cpu_ptr(dev->stats64, cpu); in usbnet_get_stats64()
1014 start = u64_stats_fetch_begin_irq(&stats64->syncp); in usbnet_get_stats64()
1015 rx_packets = stats64->rx_packets; in usbnet_get_stats64()
1016 rx_bytes = stats64->rx_bytes; in usbnet_get_stats64()
1017 tx_packets = stats64->tx_packets; in usbnet_get_stats64()
1018 tx_bytes = stats64->tx_bytes; in usbnet_get_stats64()
1019 } while (u64_stats_fetch_retry_irq(&stats64->syncp, start)); in usbnet_get_stats64()
1021 stats->rx_packets += rx_packets; in usbnet_get_stats64()
1022 stats->rx_bytes += rx_bytes; in usbnet_get_stats64()
1023 stats->tx_packets += tx_packets; in usbnet_get_stats64()
1024 stats->tx_bytes += tx_bytes; in usbnet_get_stats64()
1034 if (dev->driver_info->check_connect) in usbnet_get_link()
1035 return dev->driver_info->check_connect (dev) == 0; in usbnet_get_link()
1038 if (dev->mii.mdio_read) in usbnet_get_link()
1039 return mii_link_ok(&dev->mii); in usbnet_get_link()
1050 if (!dev->mii.mdio_write) in usbnet_nway_reset()
1051 return -EOPNOTSUPP; in usbnet_nway_reset()
1053 return mii_nway_restart(&dev->mii); in usbnet_nway_reset()
1061 strlcpy (info->driver, dev->driver_name, sizeof info->driver); in usbnet_get_drvinfo()
1062 strlcpy (info->version, DRIVER_VERSION, sizeof info->version); in usbnet_get_drvinfo()
1063 strlcpy (info->fw_version, dev->driver_info->description, in usbnet_get_drvinfo()
1064 sizeof info->fw_version); in usbnet_get_drvinfo()
1065 usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info); in usbnet_get_drvinfo()
1073 return dev->msg_enable; in usbnet_get_msglevel()
1081 dev->msg_enable = level; in usbnet_set_msglevel()
1097 /*-------------------------------------------------------------------------*/
1101 if (!test_bit(EVENT_DEV_OPEN, &dev->flags)) in __handle_link_change()
1104 if (!netif_carrier_ok(dev->net)) { in __handle_link_change()
1106 unlink_urbs(dev, &dev->rxq); in __handle_link_change()
1114 tasklet_schedule(&dev->bh); in __handle_link_change()
1120 clear_bit(EVENT_LINK_CHANGE, &dev->flags); in __handle_link_change()
1132 if (dev->driver_info->set_rx_mode) in __handle_set_rx_mode()
1133 (dev->driver_info->set_rx_mode)(dev); in __handle_set_rx_mode()
1135 clear_bit(EVENT_SET_RX_MODE, &dev->flags); in __handle_set_rx_mode()
1151 if (test_bit (EVENT_TX_HALT, &dev->flags)) { in usbnet_deferred_kevent()
1152 unlink_urbs (dev, &dev->txq); in usbnet_deferred_kevent()
1153 status = usb_autopm_get_interface(dev->intf); in usbnet_deferred_kevent()
1156 status = usb_clear_halt (dev->udev, dev->out); in usbnet_deferred_kevent()
1157 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1159 status != -EPIPE && in usbnet_deferred_kevent()
1160 status != -ESHUTDOWN) { in usbnet_deferred_kevent()
1163 netdev_err(dev->net, "can't clear tx halt, status %d\n", in usbnet_deferred_kevent()
1166 clear_bit (EVENT_TX_HALT, &dev->flags); in usbnet_deferred_kevent()
1167 if (status != -ESHUTDOWN) in usbnet_deferred_kevent()
1168 netif_wake_queue (dev->net); in usbnet_deferred_kevent()
1171 if (test_bit (EVENT_RX_HALT, &dev->flags)) { in usbnet_deferred_kevent()
1172 unlink_urbs (dev, &dev->rxq); in usbnet_deferred_kevent()
1173 status = usb_autopm_get_interface(dev->intf); in usbnet_deferred_kevent()
1176 status = usb_clear_halt (dev->udev, dev->in); in usbnet_deferred_kevent()
1177 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1179 status != -EPIPE && in usbnet_deferred_kevent()
1180 status != -ESHUTDOWN) { in usbnet_deferred_kevent()
1183 netdev_err(dev->net, "can't clear rx halt, status %d\n", in usbnet_deferred_kevent()
1186 clear_bit (EVENT_RX_HALT, &dev->flags); in usbnet_deferred_kevent()
1187 tasklet_schedule (&dev->bh); in usbnet_deferred_kevent()
1192 if (test_bit (EVENT_RX_MEMORY, &dev->flags)) { in usbnet_deferred_kevent()
1196 if (netif_running (dev->net)) in usbnet_deferred_kevent()
1199 clear_bit (EVENT_RX_MEMORY, &dev->flags); in usbnet_deferred_kevent()
1201 clear_bit (EVENT_RX_MEMORY, &dev->flags); in usbnet_deferred_kevent()
1202 status = usb_autopm_get_interface(dev->intf); in usbnet_deferred_kevent()
1207 if (rx_submit (dev, urb, GFP_KERNEL) == -ENOLINK) in usbnet_deferred_kevent()
1209 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1212 tasklet_schedule (&dev->bh); in usbnet_deferred_kevent()
1216 if (test_bit (EVENT_LINK_RESET, &dev->flags)) { in usbnet_deferred_kevent()
1217 struct driver_info *info = dev->driver_info; in usbnet_deferred_kevent()
1220 clear_bit (EVENT_LINK_RESET, &dev->flags); in usbnet_deferred_kevent()
1221 status = usb_autopm_get_interface(dev->intf); in usbnet_deferred_kevent()
1224 if(info->link_reset && (retval = info->link_reset(dev)) < 0) { in usbnet_deferred_kevent()
1225 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1227 netdev_info(dev->net, "link reset failed (%d) usbnet usb-%s-%s, %s\n", in usbnet_deferred_kevent()
1229 dev->udev->bus->bus_name, in usbnet_deferred_kevent()
1230 dev->udev->devpath, in usbnet_deferred_kevent()
1231 info->description); in usbnet_deferred_kevent()
1233 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1240 if (test_bit (EVENT_LINK_CHANGE, &dev->flags)) in usbnet_deferred_kevent()
1243 if (test_bit (EVENT_SET_RX_MODE, &dev->flags)) in usbnet_deferred_kevent()
1247 if (dev->flags) in usbnet_deferred_kevent()
1248 netdev_dbg(dev->net, "kevent done, flags = 0x%lx\n", dev->flags); in usbnet_deferred_kevent()
1251 /*-------------------------------------------------------------------------*/
1255 struct sk_buff *skb = (struct sk_buff *) urb->context; in tx_complete()
1256 struct skb_data *entry = (struct skb_data *) skb->cb; in tx_complete()
1257 struct usbnet *dev = entry->dev; in tx_complete()
1259 if (urb->status == 0) { in tx_complete()
1260 struct pcpu_sw_netstats *stats64 = this_cpu_ptr(dev->stats64); in tx_complete()
1263 flags = u64_stats_update_begin_irqsave(&stats64->syncp); in tx_complete()
1264 stats64->tx_packets += entry->packets; in tx_complete()
1265 stats64->tx_bytes += entry->length; in tx_complete()
1266 u64_stats_update_end_irqrestore(&stats64->syncp, flags); in tx_complete()
1268 dev->net->stats.tx_errors++; in tx_complete()
1270 switch (urb->status) { in tx_complete()
1271 case -EPIPE: in tx_complete()
1275 /* software-driven interface shutdown */ in tx_complete()
1276 case -ECONNRESET: // async unlink in tx_complete()
1277 case -ESHUTDOWN: // hardware gone in tx_complete()
1283 case -EPROTO: in tx_complete()
1284 case -ETIME: in tx_complete()
1285 case -EILSEQ: in tx_complete()
1286 usb_mark_last_busy(dev->udev); in tx_complete()
1287 if (!timer_pending (&dev->delay)) { in tx_complete()
1288 mod_timer (&dev->delay, in tx_complete()
1290 netif_dbg(dev, link, dev->net, in tx_complete()
1291 "tx throttle %d\n", urb->status); in tx_complete()
1293 netif_stop_queue (dev->net); in tx_complete()
1296 netif_dbg(dev, tx_err, dev->net, in tx_complete()
1297 "tx err %d\n", entry->urb->status); in tx_complete()
1302 usb_autopm_put_interface_async(dev->intf); in tx_complete()
1303 (void) defer_bh(dev, skb, &dev->txq, tx_done); in tx_complete()
1306 /*-------------------------------------------------------------------------*/
1312 unlink_urbs (dev, &dev->txq); in usbnet_tx_timeout()
1313 tasklet_schedule (&dev->bh); in usbnet_tx_timeout()
1318 if (dev->driver_info->recover) in usbnet_tx_timeout()
1319 (dev->driver_info->recover)(dev); in usbnet_tx_timeout()
1323 /*-------------------------------------------------------------------------*/
1330 num_sgs = skb_shinfo(skb)->nr_frags + 1; in build_dma_sg()
1335 urb->sg = kmalloc_array(num_sgs + 1, sizeof(struct scatterlist), in build_dma_sg()
1337 if (!urb->sg) in build_dma_sg()
1338 return -ENOMEM; in build_dma_sg()
1340 urb->num_sgs = num_sgs; in build_dma_sg()
1341 sg_init_table(urb->sg, urb->num_sgs + 1); in build_dma_sg()
1343 sg_set_buf(&urb->sg[s++], skb->data, skb_headlen(skb)); in build_dma_sg()
1346 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { in build_dma_sg()
1347 struct skb_frag_struct *f = &skb_shinfo(skb)->frags[i]; in build_dma_sg()
1350 sg_set_page(&urb->sg[i + s], f->page.p, f->size, in build_dma_sg()
1351 f->page_offset); in build_dma_sg()
1353 urb->transfer_buffer_length = total_len; in build_dma_sg()
1365 struct driver_info *info = dev->driver_info; in usbnet_start_xmit()
1372 // some devices want funky USB-level framing, for in usbnet_start_xmit()
1374 if (info->tx_fixup) { in usbnet_start_xmit()
1375 skb = info->tx_fixup (dev, skb, GFP_ATOMIC); in usbnet_start_xmit()
1378 if (info->flags & FLAG_MULTI_PACKET) in usbnet_start_xmit()
1380 netif_dbg(dev, tx_err, dev->net, "can't tx_fixup skb\n"); in usbnet_start_xmit()
1386 netif_dbg(dev, tx_err, dev->net, "no urb\n"); in usbnet_start_xmit()
1390 entry = (struct skb_data *) skb->cb; in usbnet_start_xmit()
1391 entry->urb = urb; in usbnet_start_xmit()
1392 entry->dev = dev; in usbnet_start_xmit()
1394 usb_fill_bulk_urb (urb, dev->udev, dev->out, in usbnet_start_xmit()
1395 skb->data, skb->len, tx_complete, skb); in usbnet_start_xmit()
1396 if (dev->can_dma_sg) { in usbnet_start_xmit()
1400 length = urb->transfer_buffer_length; in usbnet_start_xmit()
1403 * NOTE: strictly conforming cdc-ether devices should expect in usbnet_start_xmit()
1404 * the ZLP here, but ignore the one-byte packet. in usbnet_start_xmit()
1409 if (length % dev->maxpacket == 0) { in usbnet_start_xmit()
1410 if (!(info->flags & FLAG_SEND_ZLP)) { in usbnet_start_xmit()
1411 if (!(info->flags & FLAG_MULTI_PACKET)) { in usbnet_start_xmit()
1413 if (skb_tailroom(skb) && !urb->num_sgs) { in usbnet_start_xmit()
1414 skb->data[skb->len] = 0; in usbnet_start_xmit()
1416 } else if (urb->num_sgs) in usbnet_start_xmit()
1417 sg_set_buf(&urb->sg[urb->num_sgs++], in usbnet_start_xmit()
1418 dev->padding_pkt, 1); in usbnet_start_xmit()
1421 urb->transfer_flags |= URB_ZERO_PACKET; in usbnet_start_xmit()
1423 urb->transfer_buffer_length = length; in usbnet_start_xmit()
1425 if (info->flags & FLAG_MULTI_PACKET) { in usbnet_start_xmit()
1430 entry->length += length; in usbnet_start_xmit()
1431 if (WARN_ON_ONCE(entry->length <= 0)) in usbnet_start_xmit()
1432 entry->length = length; in usbnet_start_xmit()
1437 spin_lock_irqsave(&dev->txq.lock, flags); in usbnet_start_xmit()
1438 retval = usb_autopm_get_interface_async(dev->intf); in usbnet_start_xmit()
1440 spin_unlock_irqrestore(&dev->txq.lock, flags); in usbnet_start_xmit()
1444 usb_autopm_put_interface_async(dev->intf); in usbnet_start_xmit()
1445 spin_unlock_irqrestore(&dev->txq.lock, flags); in usbnet_start_xmit()
1451 if (test_bit(EVENT_DEV_ASLEEP, &dev->flags)) { in usbnet_start_xmit()
1453 usb_anchor_urb(urb, &dev->deferred); in usbnet_start_xmit()
1457 spin_unlock_irqrestore(&dev->txq.lock, flags); in usbnet_start_xmit()
1458 netdev_dbg(dev->net, "Delaying transmission for resumption\n"); in usbnet_start_xmit()
1464 case -EPIPE: in usbnet_start_xmit()
1467 usb_autopm_put_interface_async(dev->intf); in usbnet_start_xmit()
1470 usb_autopm_put_interface_async(dev->intf); in usbnet_start_xmit()
1471 netif_dbg(dev, tx_err, dev->net, in usbnet_start_xmit()
1476 __usbnet_queue_skb(&dev->txq, skb, tx_start); in usbnet_start_xmit()
1477 if (dev->txq.qlen >= TX_QLEN (dev)) in usbnet_start_xmit()
1480 spin_unlock_irqrestore (&dev->txq.lock, flags); in usbnet_start_xmit()
1483 netif_dbg(dev, tx_err, dev->net, "drop, code %d\n", retval); in usbnet_start_xmit()
1485 dev->net->stats.tx_dropped++; in usbnet_start_xmit()
1490 kfree(urb->sg); in usbnet_start_xmit()
1494 netif_dbg(dev, tx_queued, dev->net, in usbnet_start_xmit()
1495 "> tx, len %u, type 0x%x\n", length, skb->protocol); in usbnet_start_xmit()
1510 for (i = 0; i < 10 && dev->rxq.qlen < RX_QLEN(dev); i++) { in rx_alloc_submit()
1517 ret = -ENOMEM; in rx_alloc_submit()
1525 /*-------------------------------------------------------------------------*/
1535 while ((skb = skb_dequeue (&dev->done))) { in usbnet_bh()
1536 entry = (struct skb_data *) skb->cb; in usbnet_bh()
1537 switch (entry->state) { in usbnet_bh()
1539 entry->state = rx_cleanup; in usbnet_bh()
1543 kfree(entry->urb->sg); in usbnet_bh()
1545 usb_free_urb (entry->urb); in usbnet_bh()
1549 netdev_dbg(dev->net, "bogus skb state %d\n", entry->state); in usbnet_bh()
1554 clear_bit(EVENT_RX_KILL, &dev->flags); in usbnet_bh()
1559 if (waitqueue_active(&dev->wait)) { in usbnet_bh()
1560 if (dev->txq.qlen + dev->rxq.qlen + dev->done.qlen == 0) in usbnet_bh()
1561 wake_up_all(&dev->wait); in usbnet_bh()
1564 } else if (netif_running (dev->net) && in usbnet_bh()
1565 netif_device_present (dev->net) && in usbnet_bh()
1566 netif_carrier_ok(dev->net) && in usbnet_bh()
1567 !timer_pending(&dev->delay) && in usbnet_bh()
1568 !test_bit(EVENT_RX_PAUSED, &dev->flags) && in usbnet_bh()
1569 !test_bit(EVENT_RX_HALT, &dev->flags)) { in usbnet_bh()
1570 int temp = dev->rxq.qlen; in usbnet_bh()
1573 if (rx_alloc_submit(dev, GFP_ATOMIC) == -ENOLINK) in usbnet_bh()
1575 if (temp != dev->rxq.qlen) in usbnet_bh()
1576 netif_dbg(dev, link, dev->net, in usbnet_bh()
1577 "rxqlen %d --> %d\n", in usbnet_bh()
1578 temp, dev->rxq.qlen); in usbnet_bh()
1579 if (dev->rxq.qlen < RX_QLEN(dev)) in usbnet_bh()
1580 tasklet_schedule (&dev->bh); in usbnet_bh()
1582 if (dev->txq.qlen < TX_QLEN (dev)) in usbnet_bh()
1583 netif_wake_queue (dev->net); in usbnet_bh()
1588 /*-------------------------------------------------------------------------
1592 *-------------------------------------------------------------------------*/
1609 netif_info(dev, probe, dev->net, "unregister '%s' usb-%s-%s, %s\n", in usbnet_disconnect()
1610 intf->dev.driver->name, in usbnet_disconnect()
1611 xdev->bus->bus_name, xdev->devpath, in usbnet_disconnect()
1612 dev->driver_info->description); in usbnet_disconnect()
1614 net = dev->net; in usbnet_disconnect()
1617 cancel_work_sync(&dev->kevent); in usbnet_disconnect()
1619 usb_scuttle_anchored_urbs(&dev->deferred); in usbnet_disconnect()
1621 if (dev->driver_info->unbind) in usbnet_disconnect()
1622 dev->driver_info->unbind (dev, intf); in usbnet_disconnect()
1624 usb_kill_urb(dev->interrupt); in usbnet_disconnect()
1625 usb_free_urb(dev->interrupt); in usbnet_disconnect()
1626 kfree(dev->padding_pkt); in usbnet_disconnect()
1628 free_percpu(dev->stats64); in usbnet_disconnect()
1645 /*-------------------------------------------------------------------------*/
1667 struct usb_driver *driver = to_usb_driver(udev->dev.driver); in usbnet_probe()
1673 if (!driver->supports_autosuspend) { in usbnet_probe()
1674 driver->supports_autosuspend = 1; in usbnet_probe()
1675 pm_runtime_enable(&udev->dev); in usbnet_probe()
1678 name = udev->dev.driver->name; in usbnet_probe()
1679 info = (struct driver_info *) prod->driver_info; in usbnet_probe()
1681 dev_dbg (&udev->dev, "blacklisted by %s\n", name); in usbnet_probe()
1682 return -ENODEV; in usbnet_probe()
1685 interface = udev->cur_altsetting; in usbnet_probe()
1687 status = -ENOMEM; in usbnet_probe()
1695 SET_NETDEV_DEV(net, &udev->dev); in usbnet_probe()
1698 dev->udev = xdev; in usbnet_probe()
1699 dev->intf = udev; in usbnet_probe()
1700 dev->driver_info = info; in usbnet_probe()
1701 dev->driver_name = name; in usbnet_probe()
1703 dev->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); in usbnet_probe()
1704 if (!dev->stats64) in usbnet_probe()
1707 dev->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV in usbnet_probe()
1709 init_waitqueue_head(&dev->wait); in usbnet_probe()
1710 skb_queue_head_init (&dev->rxq); in usbnet_probe()
1711 skb_queue_head_init (&dev->txq); in usbnet_probe()
1712 skb_queue_head_init (&dev->done); in usbnet_probe()
1713 skb_queue_head_init(&dev->rxq_pause); in usbnet_probe()
1714 dev->bh.func = (void (*)(unsigned long))usbnet_bh; in usbnet_probe()
1715 dev->bh.data = (unsigned long)&dev->delay; in usbnet_probe()
1716 INIT_WORK (&dev->kevent, usbnet_deferred_kevent); in usbnet_probe()
1717 init_usb_anchor(&dev->deferred); in usbnet_probe()
1718 timer_setup(&dev->delay, usbnet_bh, 0); in usbnet_probe()
1719 mutex_init (&dev->phy_mutex); in usbnet_probe()
1720 mutex_init(&dev->interrupt_mutex); in usbnet_probe()
1721 dev->interrupt_count = 0; in usbnet_probe()
1723 dev->net = net; in usbnet_probe()
1724 strcpy (net->name, "usb%d"); in usbnet_probe()
1725 memcpy (net->dev_addr, node_id, sizeof node_id); in usbnet_probe()
1730 dev->hard_mtu = net->mtu + net->hard_header_len; in usbnet_probe()
1731 net->min_mtu = 0; in usbnet_probe()
1732 net->max_mtu = ETH_MAX_MTU; in usbnet_probe()
1734 net->netdev_ops = &usbnet_netdev_ops; in usbnet_probe()
1735 net->watchdog_timeo = TX_TIMEOUT_JIFFIES; in usbnet_probe()
1736 net->ethtool_ops = &usbnet_ethtool_ops; in usbnet_probe()
1738 // allow device-specific bind/init procedures in usbnet_probe()
1739 // NOTE net->name still not usable ... in usbnet_probe()
1740 if (info->bind) { in usbnet_probe()
1741 status = info->bind (dev, udev); in usbnet_probe()
1745 // heuristic: "usb%d" for links we know are two-host, in usbnet_probe()
1748 if ((dev->driver_info->flags & FLAG_ETHER) != 0 && in usbnet_probe()
1749 ((dev->driver_info->flags & FLAG_POINTTOPOINT) == 0 || in usbnet_probe()
1750 (net->dev_addr [0] & 0x02) == 0)) in usbnet_probe()
1751 strcpy (net->name, "eth%d"); in usbnet_probe()
1753 if ((dev->driver_info->flags & FLAG_WLAN) != 0) in usbnet_probe()
1754 strcpy(net->name, "wlan%d"); in usbnet_probe()
1756 if ((dev->driver_info->flags & FLAG_WWAN) != 0) in usbnet_probe()
1757 strcpy(net->name, "wwan%d"); in usbnet_probe()
1760 if ((dev->driver_info->flags & FLAG_NOARP) != 0) in usbnet_probe()
1761 net->flags |= IFF_NOARP; in usbnet_probe()
1764 if (net->mtu > (dev->hard_mtu - net->hard_header_len)) in usbnet_probe()
1765 net->mtu = dev->hard_mtu - net->hard_header_len; in usbnet_probe()
1766 } else if (!info->in || !info->out) in usbnet_probe()
1769 dev->in = usb_rcvbulkpipe (xdev, info->in); in usbnet_probe()
1770 dev->out = usb_sndbulkpipe (xdev, info->out); in usbnet_probe()
1771 if (!(info->flags & FLAG_NO_SETINT)) in usbnet_probe()
1773 interface->desc.bInterfaceNumber, in usbnet_probe()
1774 interface->desc.bAlternateSetting); in usbnet_probe()
1779 if (status >= 0 && dev->status) in usbnet_probe()
1784 if (!dev->rx_urb_size) in usbnet_probe()
1785 dev->rx_urb_size = dev->hard_mtu; in usbnet_probe()
1786 dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1); in usbnet_probe()
1789 if (ether_addr_equal(net->dev_addr, node_id)) in usbnet_probe()
1790 net->addr_assign_type = NET_ADDR_RANDOM; in usbnet_probe()
1792 if ((dev->driver_info->flags & FLAG_WLAN) != 0) in usbnet_probe()
1794 if ((dev->driver_info->flags & FLAG_WWAN) != 0) in usbnet_probe()
1800 if (dev->can_dma_sg && !(info->flags & FLAG_SEND_ZLP) && in usbnet_probe()
1801 !(info->flags & FLAG_MULTI_PACKET)) { in usbnet_probe()
1802 dev->padding_pkt = kzalloc(1, GFP_KERNEL); in usbnet_probe()
1803 if (!dev->padding_pkt) { in usbnet_probe()
1804 status = -ENOMEM; in usbnet_probe()
1812 netif_info(dev, probe, dev->net, in usbnet_probe()
1813 "register '%s' at usb-%s-%s, %s, %pM\n", in usbnet_probe()
1814 udev->dev.driver->name, in usbnet_probe()
1815 xdev->bus->bus_name, xdev->devpath, in usbnet_probe()
1816 dev->driver_info->description, in usbnet_probe()
1817 net->dev_addr); in usbnet_probe()
1824 if (dev->driver_info->flags & FLAG_LINK_INTR) in usbnet_probe()
1830 kfree(dev->padding_pkt); in usbnet_probe()
1832 usb_free_urb(dev->interrupt); in usbnet_probe()
1834 if (info->unbind) in usbnet_probe()
1835 info->unbind (dev, udev); in usbnet_probe()
1842 cancel_work_sync(&dev->kevent); in usbnet_probe()
1843 del_timer_sync(&dev->delay); in usbnet_probe()
1844 free_percpu(dev->stats64); in usbnet_probe()
1852 /*-------------------------------------------------------------------------*/
1863 if (!dev->suspend_count++) { in usbnet_suspend()
1864 spin_lock_irq(&dev->txq.lock); in usbnet_suspend()
1866 if (dev->txq.qlen && PMSG_IS_AUTO(message)) { in usbnet_suspend()
1867 dev->suspend_count--; in usbnet_suspend()
1868 spin_unlock_irq(&dev->txq.lock); in usbnet_suspend()
1869 return -EBUSY; in usbnet_suspend()
1871 set_bit(EVENT_DEV_ASLEEP, &dev->flags); in usbnet_suspend()
1872 spin_unlock_irq(&dev->txq.lock); in usbnet_suspend()
1878 netif_device_detach (dev->net); in usbnet_suspend()
1886 netif_device_attach (dev->net); in usbnet_suspend()
1899 if (!--dev->suspend_count) { in usbnet_resume()
1903 spin_lock_irq(&dev->txq.lock); in usbnet_resume()
1904 while ((res = usb_get_from_anchor(&dev->deferred))) { in usbnet_resume()
1906 skb = (struct sk_buff *)res->context; in usbnet_resume()
1910 kfree(res->sg); in usbnet_resume()
1912 usb_autopm_put_interface_async(dev->intf); in usbnet_resume()
1914 netif_trans_update(dev->net); in usbnet_resume()
1915 __skb_queue_tail(&dev->txq, skb); in usbnet_resume()
1920 clear_bit(EVENT_DEV_ASLEEP, &dev->flags); in usbnet_resume()
1921 spin_unlock_irq(&dev->txq.lock); in usbnet_resume()
1923 if (test_bit(EVENT_DEV_OPEN, &dev->flags)) { in usbnet_resume()
1927 if (netif_device_present(dev->net) && in usbnet_resume()
1928 !timer_pending(&dev->delay) && in usbnet_resume()
1929 !test_bit(EVENT_RX_HALT, &dev->flags)) in usbnet_resume()
1932 if (!(dev->txq.qlen >= TX_QLEN(dev))) in usbnet_resume()
1933 netif_tx_wake_all_queues(dev->net); in usbnet_resume()
1934 tasklet_schedule (&dev->bh); in usbnet_resume()
1938 if (test_and_clear_bit(EVENT_DEVICE_REPORT_IDLE, &dev->flags)) in usbnet_resume()
1952 if (!test_and_set_bit(EVENT_DEVICE_REPORT_IDLE, &dev->flags)) { in usbnet_device_suggests_idle()
1953 dev->intf->needs_remote_wakeup = 1; in usbnet_device_suggests_idle()
1954 usb_autopm_put_interface_async(dev->intf); in usbnet_device_suggests_idle()
1964 dev->intf->needs_remote_wakeup = on; in usbnet_manage_power()
1973 netif_carrier_on(dev->net); in usbnet_link_change()
1975 netif_carrier_off(dev->net); in usbnet_link_change()
1984 /*-------------------------------------------------------------------------*/
1989 int err = -ENOMEM; in __usbnet_read_cmd()
1991 netdev_dbg(dev->net, "usbnet_read_cmd cmd=0x%02x reqtype=%02x" in __usbnet_read_cmd()
2001 err = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), in __usbnet_read_cmd()
2008 netdev_dbg(dev->net, in __usbnet_read_cmd()
2021 int err = -ENOMEM; in __usbnet_write_cmd()
2023 netdev_dbg(dev->net, "usbnet_write_cmd cmd=0x%02x reqtype=%02x" in __usbnet_write_cmd()
2034 err = -EINVAL; in __usbnet_write_cmd()
2039 err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), in __usbnet_write_cmd()
2057 if (usb_autopm_get_interface(dev->intf) < 0) in usbnet_read_cmd()
2058 return -ENODEV; in usbnet_read_cmd()
2061 usb_autopm_put_interface(dev->intf); in usbnet_read_cmd()
2075 if (usb_autopm_get_interface(dev->intf) < 0) in usbnet_write_cmd()
2076 return -ENODEV; in usbnet_write_cmd()
2079 usb_autopm_put_interface(dev->intf); in usbnet_write_cmd()
2111 struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; in usbnet_async_cmd_cb()
2112 int status = urb->status; in usbnet_async_cmd_cb()
2115 dev_dbg(&urb->dev->dev, "%s failed with %d", in usbnet_async_cmd_cb()
2131 int err = -ENOMEM; in usbnet_write_cmd_async()
2134 netdev_dbg(dev->net, "usbnet_write_cmd cmd=0x%02x reqtype=%02x" in usbnet_write_cmd_async()
2145 netdev_err(dev->net, "Error allocating buffer" in usbnet_write_cmd_async()
2155 req->bRequestType = reqtype; in usbnet_write_cmd_async()
2156 req->bRequest = cmd; in usbnet_write_cmd_async()
2157 req->wValue = cpu_to_le16(value); in usbnet_write_cmd_async()
2158 req->wIndex = cpu_to_le16(index); in usbnet_write_cmd_async()
2159 req->wLength = cpu_to_le16(size); in usbnet_write_cmd_async()
2161 usb_fill_control_urb(urb, dev->udev, in usbnet_write_cmd_async()
2162 usb_sndctrlpipe(dev->udev, 0), in usbnet_write_cmd_async()
2165 urb->transfer_flags |= URB_FREE_BUFFER; in usbnet_write_cmd_async()
2169 netdev_err(dev->net, "Error submitting the control" in usbnet_write_cmd_async()
2185 /*-------------------------------------------------------------------------*/