Lines Matching +full:num +full:- +full:rxq
1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2000-2005 by David Brownell
5 * Copyright (C) 2003-2005 David Hollis <[email protected]>
10 * kinds of full and high speed networking devices: host-to-host cables,
34 /*-------------------------------------------------------------------------*/
48 #define RX_QLEN(dev) ((dev)->rx_qlen)
49 #define TX_QLEN(dev) ((dev)->tx_qlen)
62 /*-------------------------------------------------------------------------*/
65 static int msg_level = -1;
69 /*-------------------------------------------------------------------------*/
96 for (tmp = 0; tmp < intf->num_altsetting; tmp++) { in usbnet_get_endpoints()
100 alt = intf->altsetting + tmp; in usbnet_get_endpoints()
102 /* take the first altsetting with in-bulk + out-bulk; in usbnet_get_endpoints()
106 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { in usbnet_get_endpoints()
110 e = alt->endpoint + ep; in usbnet_get_endpoints()
113 if (!usb_endpoint_maxp(&e->desc)) in usbnet_get_endpoints()
116 switch (e->desc.bmAttributes) { in usbnet_get_endpoints()
118 if (!usb_endpoint_dir_in(&e->desc)) in usbnet_get_endpoints()
127 if (usb_endpoint_dir_in(&e->desc)) { in usbnet_get_endpoints()
141 return -EINVAL; in usbnet_get_endpoints()
143 if (alt->desc.bAlternateSetting != 0 || in usbnet_get_endpoints()
144 !(dev->driver_info->flags & FLAG_NO_SETINT)) { in usbnet_get_endpoints()
145 tmp = usb_set_interface (dev->udev, alt->desc.bInterfaceNumber, in usbnet_get_endpoints()
146 alt->desc.bAlternateSetting); in usbnet_get_endpoints()
151 dev->in = usb_rcvbulkpipe (dev->udev, in usbnet_get_endpoints()
152 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); in usbnet_get_endpoints()
153 dev->out = usb_sndbulkpipe (dev->udev, in usbnet_get_endpoints()
154 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); in usbnet_get_endpoints()
155 dev->status = status; in usbnet_get_endpoints()
163 int tmp = -1, ret; in usbnet_get_ethernet_addr()
166 ret = usb_string(dev->udev, iMACAddress, buf, sizeof buf); in usbnet_get_ethernet_addr()
170 dev_dbg(&dev->udev->dev, in usbnet_get_ethernet_addr()
173 ret = -EINVAL; in usbnet_get_ethernet_addr()
176 eth_hw_addr_set(dev->net, addr); in usbnet_get_ethernet_addr()
187 return (dev->driver_info->flags & FLAG_POINTTOPOINT) != 0 && in usbnet_needs_usb_name_format()
188 (is_zero_ether_addr(net->dev_addr) || in usbnet_needs_usb_name_format()
189 is_local_ether_addr(net->dev_addr)); in usbnet_needs_usb_name_format()
194 struct usbnet *dev = urb->context; in intr_complete()
195 int status = urb->status; in intr_complete()
200 dev->driver_info->status(dev, urb); in intr_complete()
203 /* software-driven interface shutdown */ in intr_complete()
204 case -ENOENT: /* urb killed */ in intr_complete()
205 case -ESHUTDOWN: /* hardware gone */ in intr_complete()
206 netif_dbg(dev, ifdown, dev->net, in intr_complete()
214 netdev_dbg(dev->net, "intr status %d\n", status); in intr_complete()
220 netif_err(dev, timer, dev->net, in intr_complete()
221 "intr resubmit --> %d\n", status); in intr_complete()
231 if (!dev->driver_info->status) in init_status()
234 pipe = usb_rcvintpipe (dev->udev, in init_status()
235 dev->status->desc.bEndpointAddress in init_status()
237 maxp = usb_maxpacket(dev->udev, pipe); in init_status()
240 period = max ((int) dev->status->desc.bInterval, in init_status()
241 (dev->udev->speed == USB_SPEED_HIGH) ? 7 : 3); in init_status()
245 dev->interrupt = usb_alloc_urb (0, GFP_KERNEL); in init_status()
246 if (!dev->interrupt) { in init_status()
248 return -ENOMEM; in init_status()
250 usb_fill_int_urb(dev->interrupt, dev->udev, pipe, in init_status()
252 dev->interrupt->transfer_flags |= URB_FREE_BUFFER; in init_status()
253 dev_dbg(&intf->dev, in init_status()
266 WARN_ON_ONCE(dev->interrupt == NULL); in usbnet_status_start()
267 if (dev->interrupt) { in usbnet_status_start()
268 mutex_lock(&dev->interrupt_mutex); in usbnet_status_start()
270 if (++dev->interrupt_count == 1) in usbnet_status_start()
271 ret = usb_submit_urb(dev->interrupt, mem_flags); in usbnet_status_start()
273 dev_dbg(&dev->udev->dev, "incremented interrupt URB count to %d\n", in usbnet_status_start()
274 dev->interrupt_count); in usbnet_status_start()
275 mutex_unlock(&dev->interrupt_mutex); in usbnet_status_start()
286 mutex_lock(&dev->interrupt_mutex); in __usbnet_status_start_force()
287 if (dev->interrupt_count) { in __usbnet_status_start_force()
288 ret = usb_submit_urb(dev->interrupt, mem_flags); in __usbnet_status_start_force()
289 dev_dbg(&dev->udev->dev, in __usbnet_status_start_force()
292 mutex_unlock(&dev->interrupt_mutex); in __usbnet_status_start_force()
299 if (dev->interrupt) { in usbnet_status_stop()
300 mutex_lock(&dev->interrupt_mutex); in usbnet_status_stop()
301 WARN_ON(dev->interrupt_count == 0); in usbnet_status_stop()
303 if (dev->interrupt_count && --dev->interrupt_count == 0) in usbnet_status_stop()
304 usb_kill_urb(dev->interrupt); in usbnet_status_stop()
306 dev_dbg(&dev->udev->dev, in usbnet_status_stop()
308 dev->interrupt_count); in usbnet_status_stop()
309 mutex_unlock(&dev->interrupt_mutex); in usbnet_status_stop()
317 if (dev->interrupt) { in __usbnet_status_stop_force()
318 mutex_lock(&dev->interrupt_mutex); in __usbnet_status_stop_force()
319 usb_kill_urb(dev->interrupt); in __usbnet_status_stop_force()
320 dev_dbg(&dev->udev->dev, "killed interrupt URB for suspend\n"); in __usbnet_status_stop_force()
321 mutex_unlock(&dev->interrupt_mutex); in __usbnet_status_stop_force()
331 struct pcpu_sw_netstats *stats64 = this_cpu_ptr(dev->net->tstats); in usbnet_skb_return()
335 if (test_bit(EVENT_RX_PAUSED, &dev->flags)) { in usbnet_skb_return()
336 skb_queue_tail(&dev->rxq_pause, skb); in usbnet_skb_return()
341 if (skb->protocol == 0) in usbnet_skb_return()
342 skb->protocol = eth_type_trans (skb, dev->net); in usbnet_skb_return()
344 flags = u64_stats_update_begin_irqsave(&stats64->syncp); in usbnet_skb_return()
345 u64_stats_inc(&stats64->rx_packets); in usbnet_skb_return()
346 u64_stats_add(&stats64->rx_bytes, skb->len); in usbnet_skb_return()
347 u64_stats_update_end_irqrestore(&stats64->syncp, flags); in usbnet_skb_return()
349 netif_dbg(dev, rx_status, dev->net, "< rx, len %zu, type 0x%x\n", in usbnet_skb_return()
350 skb->len + sizeof (struct ethhdr), skb->protocol); in usbnet_skb_return()
351 memset (skb->cb, 0, sizeof (struct skb_data)); in usbnet_skb_return()
358 netif_dbg(dev, rx_err, dev->net, in usbnet_skb_return()
366 enum usb_device_speed speed = dev->udev->speed; in usbnet_update_max_qlen()
368 if (!dev->rx_urb_size || !dev->hard_mtu) in usbnet_update_max_qlen()
372 dev->rx_qlen = MAX_QUEUE_MEMORY / dev->rx_urb_size; in usbnet_update_max_qlen()
373 dev->tx_qlen = MAX_QUEUE_MEMORY / dev->hard_mtu; in usbnet_update_max_qlen()
382 dev->rx_qlen = 5 * MAX_QUEUE_MEMORY / dev->rx_urb_size; in usbnet_update_max_qlen()
383 dev->tx_qlen = 5 * MAX_QUEUE_MEMORY / dev->hard_mtu; in usbnet_update_max_qlen()
387 dev->rx_qlen = dev->tx_qlen = 4; in usbnet_update_max_qlen()
393 /*-------------------------------------------------------------------------
397 *-------------------------------------------------------------------------*/
402 int ll_mtu = new_mtu + net->hard_header_len; in usbnet_change_mtu()
403 int old_hard_mtu = dev->hard_mtu; in usbnet_change_mtu()
404 int old_rx_urb_size = dev->rx_urb_size; in usbnet_change_mtu()
406 // no second zero-length packet read wanted after mtu-sized packets in usbnet_change_mtu()
407 if ((ll_mtu % dev->maxpacket) == 0) in usbnet_change_mtu()
408 return -EDOM; in usbnet_change_mtu()
409 WRITE_ONCE(net->mtu, new_mtu); in usbnet_change_mtu()
411 dev->hard_mtu = net->mtu + net->hard_header_len; in usbnet_change_mtu()
412 if (dev->rx_urb_size == old_hard_mtu) { in usbnet_change_mtu()
413 dev->rx_urb_size = dev->hard_mtu; in usbnet_change_mtu()
414 if (dev->rx_urb_size > old_rx_urb_size) { in usbnet_change_mtu()
428 /* The caller must hold list->lock */
432 struct skb_data *entry = (struct skb_data *) newsk->cb; in __usbnet_queue_skb()
435 entry->state = state; in __usbnet_queue_skb()
438 /*-------------------------------------------------------------------------*/
449 struct skb_data *entry = (struct skb_data *) skb->cb; in defer_bh()
451 spin_lock_irqsave(&list->lock, flags); in defer_bh()
452 old_state = entry->state; in defer_bh()
453 entry->state = state; in defer_bh()
456 /* defer_bh() is never called with list == &dev->done. in defer_bh()
458 * dev->done.lock here with list->lock held. in defer_bh()
460 spin_lock_nested(&dev->done.lock, SINGLE_DEPTH_NESTING); in defer_bh()
462 __skb_queue_tail(&dev->done, skb); in defer_bh()
463 if (dev->done.qlen == 1) in defer_bh()
464 tasklet_schedule(&dev->bh); in defer_bh()
465 spin_unlock(&dev->done.lock); in defer_bh()
466 spin_unlock_irqrestore(&list->lock, flags); in defer_bh()
477 set_bit (work, &dev->flags); in usbnet_defer_kevent()
479 if (!schedule_work(&dev->kevent)) in usbnet_defer_kevent()
480 netdev_dbg(dev->net, in usbnet_defer_kevent()
484 netdev_dbg(dev->net, in usbnet_defer_kevent()
490 /*-------------------------------------------------------------------------*/
500 size_t size = dev->rx_urb_size; in rx_submit()
503 if (test_bit(EVENT_RX_KILL, &dev->flags)) { in rx_submit()
505 return -ENOLINK; in rx_submit()
508 if (test_bit(EVENT_NO_IP_ALIGN, &dev->flags)) in rx_submit()
509 skb = __netdev_alloc_skb(dev->net, size, flags); in rx_submit()
511 skb = __netdev_alloc_skb_ip_align(dev->net, size, flags); in rx_submit()
513 netif_dbg(dev, rx_err, dev->net, "no rx skb\n"); in rx_submit()
516 return -ENOMEM; in rx_submit()
519 entry = (struct skb_data *) skb->cb; in rx_submit()
520 entry->urb = urb; in rx_submit()
521 entry->dev = dev; in rx_submit()
522 entry->length = 0; in rx_submit()
524 usb_fill_bulk_urb (urb, dev->udev, dev->in, in rx_submit()
525 skb->data, size, rx_complete, skb); in rx_submit()
527 spin_lock_irqsave (&dev->rxq.lock, lockflags); in rx_submit()
529 if (netif_running (dev->net) && in rx_submit()
530 netif_device_present (dev->net) && in rx_submit()
531 test_bit(EVENT_DEV_OPEN, &dev->flags) && in rx_submit()
532 !test_bit (EVENT_RX_HALT, &dev->flags) && in rx_submit()
533 !test_bit (EVENT_DEV_ASLEEP, &dev->flags) && in rx_submit()
536 case -EPIPE: in rx_submit()
539 case -ENOMEM: in rx_submit()
542 case -ENODEV: in rx_submit()
543 netif_dbg(dev, ifdown, dev->net, "device gone\n"); in rx_submit()
544 netif_device_detach (dev->net); in rx_submit()
546 case -EHOSTUNREACH: in rx_submit()
547 retval = -ENOLINK; in rx_submit()
550 netif_dbg(dev, rx_err, dev->net, in rx_submit()
552 tasklet_schedule (&dev->bh); in rx_submit()
555 __usbnet_queue_skb(&dev->rxq, skb, rx_start); in rx_submit()
558 netif_dbg(dev, ifdown, dev->net, "rx: stopped\n"); in rx_submit()
559 retval = -ENOLINK; in rx_submit()
561 spin_unlock_irqrestore (&dev->rxq.lock, lockflags); in rx_submit()
570 /*-------------------------------------------------------------------------*/
574 if (dev->driver_info->rx_fixup && in rx_process()
575 !dev->driver_info->rx_fixup (dev, skb)) { in rx_process()
577 if (!(dev->driver_info->flags & FLAG_RX_ASSEMBLE)) in rx_process()
578 dev->net->stats.rx_errors++; in rx_process()
579 return -EPROTO; in rx_process()
584 if (dev->driver_info->flags & FLAG_MULTI_PACKET) in rx_process()
585 return -EALREADY; in rx_process()
587 if (skb->len < ETH_HLEN) { in rx_process()
588 dev->net->stats.rx_errors++; in rx_process()
589 dev->net->stats.rx_length_errors++; in rx_process()
590 netif_dbg(dev, rx_err, dev->net, "rx length %d\n", skb->len); in rx_process()
591 return -EPROTO; in rx_process()
598 /*-------------------------------------------------------------------------*/
602 struct sk_buff *skb = (struct sk_buff *) urb->context; in rx_complete()
603 struct skb_data *entry = (struct skb_data *) skb->cb; in rx_complete()
604 struct usbnet *dev = entry->dev; in rx_complete()
605 int urb_status = urb->status; in rx_complete()
608 skb_put (skb, urb->actual_length); in rx_complete()
610 entry->urb = NULL; in rx_complete()
622 case -EPIPE: in rx_complete()
623 dev->net->stats.rx_errors++; in rx_complete()
627 /* software-driven interface shutdown */ in rx_complete()
628 case -ECONNRESET: /* async unlink */ in rx_complete()
629 case -ESHUTDOWN: /* hardware gone */ in rx_complete()
630 netif_dbg(dev, ifdown, dev->net, in rx_complete()
638 case -EPROTO: in rx_complete()
639 case -ETIME: in rx_complete()
640 case -EILSEQ: in rx_complete()
641 dev->net->stats.rx_errors++; in rx_complete()
642 if (!timer_pending (&dev->delay)) { in rx_complete()
643 mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES); in rx_complete()
644 netif_dbg(dev, link, dev->net, in rx_complete()
649 entry->urb = urb; in rx_complete()
654 case -EOVERFLOW: in rx_complete()
655 dev->net->stats.rx_over_errors++; in rx_complete()
660 dev->net->stats.rx_errors++; in rx_complete()
661 netif_dbg(dev, rx_err, dev->net, "rx status %d\n", urb_status); in rx_complete()
666 if (++dev->pkt_cnt > 30) { in rx_complete()
667 dev->pkt_cnt = 0; in rx_complete()
668 dev->pkt_err = 0; in rx_complete()
671 dev->pkt_err++; in rx_complete()
672 if (dev->pkt_err > 20) in rx_complete()
673 set_bit(EVENT_RX_KILL, &dev->flags); in rx_complete()
676 state = defer_bh(dev, skb, &dev->rxq, state); in rx_complete()
679 if (netif_running (dev->net) && in rx_complete()
680 !test_bit (EVENT_RX_HALT, &dev->flags) && in rx_complete()
683 usb_mark_last_busy(dev->udev); in rx_complete()
688 netif_dbg(dev, rx_err, dev->net, "no read resubmitted\n"); in rx_complete()
691 /*-------------------------------------------------------------------------*/
694 set_bit(EVENT_RX_PAUSED, &dev->flags); in usbnet_pause_rx()
696 netif_dbg(dev, rx_status, dev->net, "paused rx queue enabled\n"); in usbnet_pause_rx()
703 int num = 0; in usbnet_resume_rx() local
705 clear_bit(EVENT_RX_PAUSED, &dev->flags); in usbnet_resume_rx()
707 while ((skb = skb_dequeue(&dev->rxq_pause)) != NULL) { in usbnet_resume_rx()
709 num++; in usbnet_resume_rx()
712 tasklet_schedule(&dev->bh); in usbnet_resume_rx()
714 netif_dbg(dev, rx_status, dev->net, in usbnet_resume_rx()
715 "paused rx queue disabled, %d skbs requeued\n", num); in usbnet_resume_rx()
721 skb_queue_purge(&dev->rxq_pause); in usbnet_purge_paused_rxq()
725 /*-------------------------------------------------------------------------*/
735 spin_lock_irqsave (&q->lock, flags); in unlink_urbs()
742 entry = (struct skb_data *) skb->cb; in unlink_urbs()
743 if (entry->state != unlink_start) in unlink_urbs()
748 entry->state = unlink_start; in unlink_urbs()
749 urb = entry->urb; in unlink_urbs()
754 * use-after-free problem inside usb_unlink_urb since in unlink_urbs()
759 spin_unlock_irqrestore(&q->lock, flags); in unlink_urbs()
760 // during some PM-driven resume scenarios, in unlink_urbs()
763 if (retval != -EINPROGRESS && retval != 0) in unlink_urbs()
764 netdev_dbg(dev->net, "unlink urb err, %d\n", retval); in unlink_urbs()
768 spin_lock_irqsave(&q->lock, flags); in unlink_urbs()
770 spin_unlock_irqrestore (&q->lock, flags); in unlink_urbs()
779 if (netif_running(dev->net)) { in usbnet_unlink_rx_urbs()
780 (void) unlink_urbs (dev, &dev->rxq); in usbnet_unlink_rx_urbs()
781 tasklet_schedule(&dev->bh); in usbnet_unlink_rx_urbs()
786 /*-------------------------------------------------------------------------*/
792 spin_lock_irqsave(&q->lock, flags); in wait_skb_queue_empty()
794 spin_unlock_irqrestore(&q->lock, flags); in wait_skb_queue_empty()
797 spin_lock_irqsave(&q->lock, flags); in wait_skb_queue_empty()
799 spin_unlock_irqrestore(&q->lock, flags); in wait_skb_queue_empty()
809 add_wait_queue(&dev->wait, &wait); in usbnet_terminate_urbs()
811 temp = unlink_urbs(dev, &dev->txq) + in usbnet_terminate_urbs()
812 unlink_urbs(dev, &dev->rxq); in usbnet_terminate_urbs()
815 wait_skb_queue_empty(&dev->rxq); in usbnet_terminate_urbs()
816 wait_skb_queue_empty(&dev->txq); in usbnet_terminate_urbs()
817 wait_skb_queue_empty(&dev->done); in usbnet_terminate_urbs()
818 netif_dbg(dev, ifdown, dev->net, in usbnet_terminate_urbs()
821 remove_wait_queue(&dev->wait, &wait); in usbnet_terminate_urbs()
827 const struct driver_info *info = dev->driver_info; in usbnet_stop()
830 clear_bit(EVENT_DEV_OPEN, &dev->flags); in usbnet_stop()
833 netif_info(dev, ifdown, dev->net, in usbnet_stop()
835 net->stats.rx_packets, net->stats.tx_packets, in usbnet_stop()
836 net->stats.rx_errors, net->stats.tx_errors); in usbnet_stop()
839 pm = usb_autopm_get_interface(dev->intf); in usbnet_stop()
842 if (info->stop) { in usbnet_stop()
843 retval = info->stop(dev); in usbnet_stop()
845 netif_info(dev, ifdown, dev->net, in usbnet_stop()
846 "stop fail (%d) usbnet usb-%s-%s, %s\n", in usbnet_stop()
848 dev->udev->bus->bus_name, dev->udev->devpath, in usbnet_stop()
849 info->description); in usbnet_stop()
852 if (!(info->flags & FLAG_AVOID_UNLINK_URBS)) in usbnet_stop()
859 mpn = !test_and_clear_bit(EVENT_NO_RUNTIME_PM, &dev->flags); in usbnet_stop()
862 dev->flags = 0; in usbnet_stop()
863 del_timer_sync(&dev->delay); in usbnet_stop()
864 tasklet_kill(&dev->bh); in usbnet_stop()
865 cancel_work_sync(&dev->kevent); in usbnet_stop()
871 tasklet_kill(&dev->bh); in usbnet_stop()
872 del_timer_sync(&dev->delay); in usbnet_stop()
873 cancel_work_sync(&dev->kevent); in usbnet_stop()
876 usb_autopm_put_interface(dev->intf); in usbnet_stop()
878 if (info->manage_power && mpn) in usbnet_stop()
879 info->manage_power(dev, 0); in usbnet_stop()
881 usb_autopm_put_interface(dev->intf); in usbnet_stop()
887 /*-------------------------------------------------------------------------*/
897 const struct driver_info *info = dev->driver_info; in usbnet_open()
899 if ((retval = usb_autopm_get_interface(dev->intf)) < 0) { in usbnet_open()
900 netif_info(dev, ifup, dev->net, in usbnet_open()
901 "resumption fail (%d) usbnet usb-%s-%s, %s\n", in usbnet_open()
903 dev->udev->bus->bus_name, in usbnet_open()
904 dev->udev->devpath, in usbnet_open()
905 info->description); in usbnet_open()
910 if (info->reset && (retval = info->reset (dev)) < 0) { in usbnet_open()
911 netif_info(dev, ifup, dev->net, in usbnet_open()
912 "open reset fail (%d) usbnet usb-%s-%s, %s\n", in usbnet_open()
914 dev->udev->bus->bus_name, in usbnet_open()
915 dev->udev->devpath, in usbnet_open()
916 info->description); in usbnet_open()
924 if (info->check_connect && (retval = info->check_connect (dev)) < 0) { in usbnet_open()
925 netif_err(dev, ifup, dev->net, "can't open; %d\n", retval); in usbnet_open()
930 if (dev->interrupt) { in usbnet_open()
933 netif_err(dev, ifup, dev->net, in usbnet_open()
939 set_bit(EVENT_DEV_OPEN, &dev->flags); in usbnet_open()
941 netif_info(dev, ifup, dev->net, in usbnet_open()
944 dev->net->mtu, in usbnet_open()
945 (dev->driver_info->flags & FLAG_FRAMING_NC) ? "NetChip" : in usbnet_open()
946 (dev->driver_info->flags & FLAG_FRAMING_GL) ? "GeneSys" : in usbnet_open()
947 (dev->driver_info->flags & FLAG_FRAMING_Z) ? "Zaurus" : in usbnet_open()
948 (dev->driver_info->flags & FLAG_FRAMING_RN) ? "RNDIS" : in usbnet_open()
949 (dev->driver_info->flags & FLAG_FRAMING_AX) ? "ASIX" : in usbnet_open()
953 dev->pkt_cnt = 0; in usbnet_open()
954 dev->pkt_err = 0; in usbnet_open()
955 clear_bit(EVENT_RX_KILL, &dev->flags); in usbnet_open()
958 tasklet_schedule (&dev->bh); in usbnet_open()
959 if (info->manage_power) { in usbnet_open()
960 retval = info->manage_power(dev, 1); in usbnet_open()
963 set_bit(EVENT_NO_RUNTIME_PM, &dev->flags); in usbnet_open()
965 usb_autopm_put_interface(dev->intf); in usbnet_open()
970 usb_autopm_put_interface(dev->intf); in usbnet_open()
976 /*-------------------------------------------------------------------------*/
990 if (!dev->mii.mdio_read) in usbnet_get_link_ksettings_mii()
991 return -EOPNOTSUPP; in usbnet_get_link_ksettings_mii()
993 mii_ethtool_get_link_ksettings(&dev->mii, cmd); in usbnet_get_link_ksettings_mii()
1009 if (dev->rx_speed != SPEED_UNSET) in usbnet_get_link_ksettings_internal()
1010 cmd->base.speed = dev->rx_speed / 1000000; in usbnet_get_link_ksettings_internal()
1011 else if (dev->tx_speed != SPEED_UNSET) in usbnet_get_link_ksettings_internal()
1012 cmd->base.speed = dev->tx_speed / 1000000; in usbnet_get_link_ksettings_internal()
1014 cmd->base.speed = SPEED_UNKNOWN; in usbnet_get_link_ksettings_internal()
1026 if (!dev->mii.mdio_write) in usbnet_set_link_ksettings_mii()
1027 return -EOPNOTSUPP; in usbnet_set_link_ksettings_mii()
1029 retval = mii_ethtool_set_link_ksettings(&dev->mii, cmd); in usbnet_set_link_ksettings_mii()
1032 if (dev->driver_info->link_reset) in usbnet_set_link_ksettings_mii()
1033 dev->driver_info->link_reset(dev); in usbnet_set_link_ksettings_mii()
1047 if (dev->driver_info->check_connect) in usbnet_get_link()
1048 return dev->driver_info->check_connect (dev) == 0; in usbnet_get_link()
1051 if (dev->mii.mdio_read) in usbnet_get_link()
1052 return mii_link_ok(&dev->mii); in usbnet_get_link()
1063 if (!dev->mii.mdio_write) in usbnet_nway_reset()
1064 return -EOPNOTSUPP; in usbnet_nway_reset()
1066 return mii_nway_restart(&dev->mii); in usbnet_nway_reset()
1074 strscpy(info->driver, dev->driver_name, sizeof(info->driver)); in usbnet_get_drvinfo()
1075 strscpy(info->fw_version, dev->driver_info->description, in usbnet_get_drvinfo()
1076 sizeof(info->fw_version)); in usbnet_get_drvinfo()
1077 usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info); in usbnet_get_drvinfo()
1085 return dev->msg_enable; in usbnet_get_msglevel()
1093 dev->msg_enable = level; in usbnet_set_msglevel()
1109 /*-------------------------------------------------------------------------*/
1113 if (!test_bit(EVENT_DEV_OPEN, &dev->flags)) in __handle_link_change()
1116 if (!netif_carrier_ok(dev->net)) { in __handle_link_change()
1118 unlink_urbs(dev, &dev->rxq); in __handle_link_change()
1126 tasklet_schedule(&dev->bh); in __handle_link_change()
1132 clear_bit(EVENT_LINK_CHANGE, &dev->flags); in __handle_link_change()
1145 if (dev->driver_info->set_rx_mode) in __handle_set_rx_mode()
1146 (dev->driver_info->set_rx_mode)(dev); in __handle_set_rx_mode()
1148 clear_bit(EVENT_SET_RX_MODE, &dev->flags); in __handle_set_rx_mode()
1164 if (test_bit (EVENT_TX_HALT, &dev->flags)) { in usbnet_deferred_kevent()
1165 unlink_urbs (dev, &dev->txq); in usbnet_deferred_kevent()
1166 status = usb_autopm_get_interface(dev->intf); in usbnet_deferred_kevent()
1169 status = usb_clear_halt (dev->udev, dev->out); in usbnet_deferred_kevent()
1170 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1172 status != -EPIPE && in usbnet_deferred_kevent()
1173 status != -ESHUTDOWN) { in usbnet_deferred_kevent()
1176 netdev_err(dev->net, "can't clear tx halt, status %d\n", in usbnet_deferred_kevent()
1179 clear_bit (EVENT_TX_HALT, &dev->flags); in usbnet_deferred_kevent()
1180 if (status != -ESHUTDOWN) in usbnet_deferred_kevent()
1181 netif_wake_queue (dev->net); in usbnet_deferred_kevent()
1184 if (test_bit (EVENT_RX_HALT, &dev->flags)) { in usbnet_deferred_kevent()
1185 unlink_urbs (dev, &dev->rxq); in usbnet_deferred_kevent()
1186 status = usb_autopm_get_interface(dev->intf); in usbnet_deferred_kevent()
1189 status = usb_clear_halt (dev->udev, dev->in); in usbnet_deferred_kevent()
1190 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1192 status != -EPIPE && in usbnet_deferred_kevent()
1193 status != -ESHUTDOWN) { in usbnet_deferred_kevent()
1196 netdev_err(dev->net, "can't clear rx halt, status %d\n", in usbnet_deferred_kevent()
1199 clear_bit (EVENT_RX_HALT, &dev->flags); in usbnet_deferred_kevent()
1201 tasklet_schedule(&dev->bh); in usbnet_deferred_kevent()
1206 if (test_bit (EVENT_RX_MEMORY, &dev->flags)) { in usbnet_deferred_kevent()
1210 if (netif_running (dev->net)) in usbnet_deferred_kevent()
1213 clear_bit (EVENT_RX_MEMORY, &dev->flags); in usbnet_deferred_kevent()
1215 clear_bit (EVENT_RX_MEMORY, &dev->flags); in usbnet_deferred_kevent()
1216 status = usb_autopm_get_interface(dev->intf); in usbnet_deferred_kevent()
1221 if (rx_submit (dev, urb, GFP_KERNEL) == -ENOLINK) in usbnet_deferred_kevent()
1223 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1227 tasklet_schedule(&dev->bh); in usbnet_deferred_kevent()
1231 if (test_bit (EVENT_LINK_RESET, &dev->flags)) { in usbnet_deferred_kevent()
1232 const struct driver_info *info = dev->driver_info; in usbnet_deferred_kevent()
1235 clear_bit (EVENT_LINK_RESET, &dev->flags); in usbnet_deferred_kevent()
1236 status = usb_autopm_get_interface(dev->intf); in usbnet_deferred_kevent()
1239 if(info->link_reset && (retval = info->link_reset(dev)) < 0) { in usbnet_deferred_kevent()
1240 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1242 netdev_info(dev->net, "link reset failed (%d) usbnet usb-%s-%s, %s\n", in usbnet_deferred_kevent()
1244 dev->udev->bus->bus_name, in usbnet_deferred_kevent()
1245 dev->udev->devpath, in usbnet_deferred_kevent()
1246 info->description); in usbnet_deferred_kevent()
1248 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1255 if (test_bit (EVENT_LINK_CHANGE, &dev->flags)) in usbnet_deferred_kevent()
1258 if (test_bit (EVENT_SET_RX_MODE, &dev->flags)) in usbnet_deferred_kevent()
1262 if (dev->flags) in usbnet_deferred_kevent()
1263 netdev_dbg(dev->net, "kevent done, flags = 0x%lx\n", dev->flags); in usbnet_deferred_kevent()
1266 /*-------------------------------------------------------------------------*/
1270 struct sk_buff *skb = (struct sk_buff *) urb->context; in tx_complete()
1271 struct skb_data *entry = (struct skb_data *) skb->cb; in tx_complete()
1272 struct usbnet *dev = entry->dev; in tx_complete()
1274 if (urb->status == 0) { in tx_complete()
1275 struct pcpu_sw_netstats *stats64 = this_cpu_ptr(dev->net->tstats); in tx_complete()
1278 flags = u64_stats_update_begin_irqsave(&stats64->syncp); in tx_complete()
1279 u64_stats_add(&stats64->tx_packets, entry->packets); in tx_complete()
1280 u64_stats_add(&stats64->tx_bytes, entry->length); in tx_complete()
1281 u64_stats_update_end_irqrestore(&stats64->syncp, flags); in tx_complete()
1283 dev->net->stats.tx_errors++; in tx_complete()
1285 switch (urb->status) { in tx_complete()
1286 case -EPIPE: in tx_complete()
1290 /* software-driven interface shutdown */ in tx_complete()
1291 case -ECONNRESET: // async unlink in tx_complete()
1292 case -ESHUTDOWN: // hardware gone in tx_complete()
1298 case -EPROTO: in tx_complete()
1299 case -ETIME: in tx_complete()
1300 case -EILSEQ: in tx_complete()
1301 usb_mark_last_busy(dev->udev); in tx_complete()
1302 if (!timer_pending (&dev->delay)) { in tx_complete()
1303 mod_timer (&dev->delay, in tx_complete()
1305 netif_dbg(dev, link, dev->net, in tx_complete()
1306 "tx throttle %d\n", urb->status); in tx_complete()
1308 netif_stop_queue (dev->net); in tx_complete()
1311 netif_dbg(dev, tx_err, dev->net, in tx_complete()
1312 "tx err %d\n", entry->urb->status); in tx_complete()
1317 usb_autopm_put_interface_async(dev->intf); in tx_complete()
1318 (void) defer_bh(dev, skb, &dev->txq, tx_done); in tx_complete()
1321 /*-------------------------------------------------------------------------*/
1327 unlink_urbs (dev, &dev->txq); in usbnet_tx_timeout()
1328 tasklet_schedule (&dev->bh); in usbnet_tx_timeout()
1333 if (dev->driver_info->recover) in usbnet_tx_timeout()
1334 (dev->driver_info->recover)(dev); in usbnet_tx_timeout()
1338 /*-------------------------------------------------------------------------*/
1345 num_sgs = skb_shinfo(skb)->nr_frags + 1; in build_dma_sg()
1350 urb->sg = kmalloc_array(num_sgs + 1, sizeof(struct scatterlist), in build_dma_sg()
1352 if (!urb->sg) in build_dma_sg()
1353 return -ENOMEM; in build_dma_sg()
1355 urb->num_sgs = num_sgs; in build_dma_sg()
1356 sg_init_table(urb->sg, urb->num_sgs + 1); in build_dma_sg()
1358 sg_set_buf(&urb->sg[s++], skb->data, skb_headlen(skb)); in build_dma_sg()
1361 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { in build_dma_sg()
1362 skb_frag_t *f = &skb_shinfo(skb)->frags[i]; in build_dma_sg()
1365 sg_set_page(&urb->sg[i + s], skb_frag_page(f), skb_frag_size(f), in build_dma_sg()
1368 urb->transfer_buffer_length = total_len; in build_dma_sg()
1380 const struct driver_info *info = dev->driver_info; in usbnet_start_xmit()
1387 // some devices want funky USB-level framing, for in usbnet_start_xmit()
1389 if (info->tx_fixup) { in usbnet_start_xmit()
1390 skb = info->tx_fixup (dev, skb, GFP_ATOMIC); in usbnet_start_xmit()
1393 if (info->flags & FLAG_MULTI_PACKET) in usbnet_start_xmit()
1395 netif_dbg(dev, tx_err, dev->net, "can't tx_fixup skb\n"); in usbnet_start_xmit()
1401 netif_dbg(dev, tx_err, dev->net, "no urb\n"); in usbnet_start_xmit()
1405 entry = (struct skb_data *) skb->cb; in usbnet_start_xmit()
1406 entry->urb = urb; in usbnet_start_xmit()
1407 entry->dev = dev; in usbnet_start_xmit()
1409 usb_fill_bulk_urb (urb, dev->udev, dev->out, in usbnet_start_xmit()
1410 skb->data, skb->len, tx_complete, skb); in usbnet_start_xmit()
1411 if (dev->can_dma_sg) { in usbnet_start_xmit()
1415 length = urb->transfer_buffer_length; in usbnet_start_xmit()
1418 * NOTE: strictly conforming cdc-ether devices should expect in usbnet_start_xmit()
1419 * the ZLP here, but ignore the one-byte packet. in usbnet_start_xmit()
1424 if (length % dev->maxpacket == 0) { in usbnet_start_xmit()
1425 if (!(info->flags & FLAG_SEND_ZLP)) { in usbnet_start_xmit()
1426 if (!(info->flags & FLAG_MULTI_PACKET)) { in usbnet_start_xmit()
1428 if (skb_tailroom(skb) && !urb->num_sgs) { in usbnet_start_xmit()
1429 skb->data[skb->len] = 0; in usbnet_start_xmit()
1431 } else if (urb->num_sgs) in usbnet_start_xmit()
1432 sg_set_buf(&urb->sg[urb->num_sgs++], in usbnet_start_xmit()
1433 dev->padding_pkt, 1); in usbnet_start_xmit()
1436 urb->transfer_flags |= URB_ZERO_PACKET; in usbnet_start_xmit()
1438 urb->transfer_buffer_length = length; in usbnet_start_xmit()
1440 if (info->flags & FLAG_MULTI_PACKET) { in usbnet_start_xmit()
1445 entry->length += length; in usbnet_start_xmit()
1446 if (WARN_ON_ONCE(entry->length <= 0)) in usbnet_start_xmit()
1447 entry->length = length; in usbnet_start_xmit()
1452 spin_lock_irqsave(&dev->txq.lock, flags); in usbnet_start_xmit()
1453 retval = usb_autopm_get_interface_async(dev->intf); in usbnet_start_xmit()
1455 spin_unlock_irqrestore(&dev->txq.lock, flags); in usbnet_start_xmit()
1459 usb_autopm_put_interface_async(dev->intf); in usbnet_start_xmit()
1460 spin_unlock_irqrestore(&dev->txq.lock, flags); in usbnet_start_xmit()
1466 if (test_bit(EVENT_DEV_ASLEEP, &dev->flags)) { in usbnet_start_xmit()
1468 usb_anchor_urb(urb, &dev->deferred); in usbnet_start_xmit()
1472 spin_unlock_irqrestore(&dev->txq.lock, flags); in usbnet_start_xmit()
1473 netdev_dbg(dev->net, "Delaying transmission for resumption\n"); in usbnet_start_xmit()
1479 case -EPIPE: in usbnet_start_xmit()
1482 usb_autopm_put_interface_async(dev->intf); in usbnet_start_xmit()
1485 usb_autopm_put_interface_async(dev->intf); in usbnet_start_xmit()
1486 netif_dbg(dev, tx_err, dev->net, in usbnet_start_xmit()
1491 __usbnet_queue_skb(&dev->txq, skb, tx_start); in usbnet_start_xmit()
1492 if (dev->txq.qlen >= TX_QLEN (dev)) in usbnet_start_xmit()
1495 spin_unlock_irqrestore (&dev->txq.lock, flags); in usbnet_start_xmit()
1498 netif_dbg(dev, tx_err, dev->net, "drop, code %d\n", retval); in usbnet_start_xmit()
1500 dev->net->stats.tx_dropped++; in usbnet_start_xmit()
1505 kfree(urb->sg); in usbnet_start_xmit()
1509 netif_dbg(dev, tx_queued, dev->net, in usbnet_start_xmit()
1510 "> tx, len %u, type 0x%x\n", length, skb->protocol); in usbnet_start_xmit()
1525 for (i = 0; i < 10 && dev->rxq.qlen < RX_QLEN(dev); i++) { in rx_alloc_submit()
1532 ret = -ENOMEM; in rx_alloc_submit()
1542 struct skb_data *entry = (struct skb_data *)skb->cb; in usb_free_skb()
1544 usb_free_urb(entry->urb); in usb_free_skb()
1548 /*-------------------------------------------------------------------------*/
1558 while ((skb = skb_dequeue (&dev->done))) { in usbnet_bh()
1559 entry = (struct skb_data *) skb->cb; in usbnet_bh()
1560 switch (entry->state) { in usbnet_bh()
1566 kfree(entry->urb->sg); in usbnet_bh()
1572 netdev_dbg(dev->net, "bogus skb state %d\n", entry->state); in usbnet_bh()
1577 clear_bit(EVENT_RX_KILL, &dev->flags); in usbnet_bh()
1582 if (waitqueue_active(&dev->wait)) { in usbnet_bh()
1583 if (dev->txq.qlen + dev->rxq.qlen + dev->done.qlen == 0) in usbnet_bh()
1584 wake_up_all(&dev->wait); in usbnet_bh()
1587 } else if (netif_running (dev->net) && in usbnet_bh()
1588 netif_device_present (dev->net) && in usbnet_bh()
1589 netif_carrier_ok(dev->net) && in usbnet_bh()
1591 !timer_pending(&dev->delay) && in usbnet_bh()
1592 !test_bit(EVENT_RX_PAUSED, &dev->flags) && in usbnet_bh()
1593 !test_bit(EVENT_RX_HALT, &dev->flags)) { in usbnet_bh()
1594 int temp = dev->rxq.qlen; in usbnet_bh()
1597 if (rx_alloc_submit(dev, GFP_ATOMIC) == -ENOLINK) in usbnet_bh()
1599 if (temp != dev->rxq.qlen) in usbnet_bh()
1600 netif_dbg(dev, link, dev->net, in usbnet_bh()
1601 "rxqlen %d --> %d\n", in usbnet_bh()
1602 temp, dev->rxq.qlen); in usbnet_bh()
1603 if (dev->rxq.qlen < RX_QLEN(dev)) in usbnet_bh()
1604 tasklet_schedule (&dev->bh); in usbnet_bh()
1606 if (dev->txq.qlen < TX_QLEN (dev)) in usbnet_bh()
1607 netif_wake_queue (dev->net); in usbnet_bh()
1615 usbnet_bh(&dev->delay); in usbnet_bh_tasklet()
1619 /*-------------------------------------------------------------------------
1623 *-------------------------------------------------------------------------*/
1642 netif_info(dev, probe, dev->net, "unregister '%s' usb-%s-%s, %s\n", in usbnet_disconnect()
1643 intf->dev.driver->name, in usbnet_disconnect()
1644 xdev->bus->bus_name, xdev->devpath, in usbnet_disconnect()
1645 dev->driver_info->description); in usbnet_disconnect()
1647 net = dev->net; in usbnet_disconnect()
1650 while ((urb = usb_get_from_anchor(&dev->deferred))) { in usbnet_disconnect()
1651 dev_kfree_skb(urb->context); in usbnet_disconnect()
1652 kfree(urb->sg); in usbnet_disconnect()
1656 if (dev->driver_info->unbind) in usbnet_disconnect()
1657 dev->driver_info->unbind(dev, intf); in usbnet_disconnect()
1659 usb_kill_urb(dev->interrupt); in usbnet_disconnect()
1660 usb_free_urb(dev->interrupt); in usbnet_disconnect()
1661 kfree(dev->padding_pkt); in usbnet_disconnect()
1678 /*-------------------------------------------------------------------------*/
1700 struct usb_driver *driver = to_usb_driver(udev->dev.driver); in usbnet_probe()
1706 if (!driver->supports_autosuspend) { in usbnet_probe()
1707 driver->supports_autosuspend = 1; in usbnet_probe()
1708 pm_runtime_enable(&udev->dev); in usbnet_probe()
1711 name = udev->dev.driver->name; in usbnet_probe()
1712 info = (const struct driver_info *) prod->driver_info; in usbnet_probe()
1714 dev_dbg (&udev->dev, "blacklisted by %s\n", name); in usbnet_probe()
1715 return -ENODEV; in usbnet_probe()
1718 interface = udev->cur_altsetting; in usbnet_probe()
1720 status = -ENOMEM; in usbnet_probe()
1728 SET_NETDEV_DEV(net, &udev->dev); in usbnet_probe()
1731 dev->udev = xdev; in usbnet_probe()
1732 dev->intf = udev; in usbnet_probe()
1733 dev->driver_info = info; in usbnet_probe()
1734 dev->driver_name = name; in usbnet_probe()
1735 dev->rx_speed = SPEED_UNSET; in usbnet_probe()
1736 dev->tx_speed = SPEED_UNSET; in usbnet_probe()
1738 dev->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV in usbnet_probe()
1740 init_waitqueue_head(&dev->wait); in usbnet_probe()
1741 skb_queue_head_init (&dev->rxq); in usbnet_probe()
1742 skb_queue_head_init (&dev->txq); in usbnet_probe()
1743 skb_queue_head_init (&dev->done); in usbnet_probe()
1744 skb_queue_head_init(&dev->rxq_pause); in usbnet_probe()
1745 tasklet_setup(&dev->bh, usbnet_bh_tasklet); in usbnet_probe()
1746 INIT_WORK (&dev->kevent, usbnet_deferred_kevent); in usbnet_probe()
1747 init_usb_anchor(&dev->deferred); in usbnet_probe()
1748 timer_setup(&dev->delay, usbnet_bh, 0); in usbnet_probe()
1749 mutex_init (&dev->phy_mutex); in usbnet_probe()
1750 mutex_init(&dev->interrupt_mutex); in usbnet_probe()
1751 dev->interrupt_count = 0; in usbnet_probe()
1753 dev->net = net; in usbnet_probe()
1754 strscpy(net->name, "usb%d", sizeof(net->name)); in usbnet_probe()
1759 dev->hard_mtu = net->mtu + net->hard_header_len; in usbnet_probe()
1760 net->min_mtu = 0; in usbnet_probe()
1761 net->max_mtu = ETH_MAX_MTU; in usbnet_probe()
1762 net->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS; in usbnet_probe()
1764 net->netdev_ops = &usbnet_netdev_ops; in usbnet_probe()
1765 net->watchdog_timeo = TX_TIMEOUT_JIFFIES; in usbnet_probe()
1766 net->ethtool_ops = &usbnet_ethtool_ops; in usbnet_probe()
1767 net->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS; in usbnet_probe()
1769 // allow device-specific bind/init procedures in usbnet_probe()
1770 // NOTE net->name still not usable ... in usbnet_probe()
1771 if (info->bind) { in usbnet_probe()
1772 status = info->bind (dev, udev); in usbnet_probe()
1777 * is two-host (these links keep "usb%d") in usbnet_probe()
1779 if ((dev->driver_info->flags & FLAG_ETHER) != 0 && in usbnet_probe()
1781 strscpy(net->name, "eth%d", sizeof(net->name)); in usbnet_probe()
1783 if ((dev->driver_info->flags & FLAG_WLAN) != 0) in usbnet_probe()
1784 strscpy(net->name, "wlan%d", sizeof(net->name)); in usbnet_probe()
1786 if ((dev->driver_info->flags & FLAG_WWAN) != 0) in usbnet_probe()
1787 strscpy(net->name, "wwan%d", sizeof(net->name)); in usbnet_probe()
1790 if ((dev->driver_info->flags & FLAG_NOARP) != 0) in usbnet_probe()
1791 net->flags |= IFF_NOARP; in usbnet_probe()
1794 if (net->mtu > (dev->hard_mtu - net->hard_header_len)) in usbnet_probe()
1795 net->mtu = dev->hard_mtu - net->hard_header_len; in usbnet_probe()
1796 } else if (!info->in || !info->out) in usbnet_probe()
1800 info->in + USB_DIR_IN, info->out + USB_DIR_OUT, 0 in usbnet_probe()
1803 dev->in = usb_rcvbulkpipe (xdev, info->in); in usbnet_probe()
1804 dev->out = usb_sndbulkpipe (xdev, info->out); in usbnet_probe()
1805 if (!(info->flags & FLAG_NO_SETINT)) in usbnet_probe()
1807 interface->desc.bInterfaceNumber, in usbnet_probe()
1808 interface->desc.bAlternateSetting); in usbnet_probe()
1813 status = -EINVAL; in usbnet_probe()
1815 if (status >= 0 && dev->status) in usbnet_probe()
1820 if (!dev->rx_urb_size) in usbnet_probe()
1821 dev->rx_urb_size = dev->hard_mtu; in usbnet_probe()
1822 dev->maxpacket = usb_maxpacket(dev->udev, dev->out); in usbnet_probe()
1823 if (dev->maxpacket == 0) { in usbnet_probe()
1825 status = -ENODEV; in usbnet_probe()
1830 if (!is_valid_ether_addr(net->dev_addr)) in usbnet_probe()
1833 if ((dev->driver_info->flags & FLAG_WLAN) != 0) in usbnet_probe()
1835 if ((dev->driver_info->flags & FLAG_WWAN) != 0) in usbnet_probe()
1841 if (dev->can_dma_sg && !(info->flags & FLAG_SEND_ZLP) && in usbnet_probe()
1842 !(info->flags & FLAG_MULTI_PACKET)) { in usbnet_probe()
1843 dev->padding_pkt = kzalloc(1, GFP_KERNEL); in usbnet_probe()
1844 if (!dev->padding_pkt) { in usbnet_probe()
1845 status = -ENOMEM; in usbnet_probe()
1853 netif_info(dev, probe, dev->net, in usbnet_probe()
1854 "register '%s' at usb-%s-%s, %s, %pM\n", in usbnet_probe()
1855 udev->dev.driver->name, in usbnet_probe()
1856 xdev->bus->bus_name, xdev->devpath, in usbnet_probe()
1857 dev->driver_info->description, in usbnet_probe()
1858 net->dev_addr); in usbnet_probe()
1865 if (dev->driver_info->flags & FLAG_LINK_INTR) in usbnet_probe()
1871 kfree(dev->padding_pkt); in usbnet_probe()
1873 usb_free_urb(dev->interrupt); in usbnet_probe()
1875 if (info->unbind) in usbnet_probe()
1876 info->unbind (dev, udev); in usbnet_probe()
1884 cancel_work_sync(&dev->kevent); in usbnet_probe()
1885 del_timer_sync(&dev->delay); in usbnet_probe()
1892 /*-------------------------------------------------------------------------*/
1903 if (!dev->suspend_count++) { in usbnet_suspend()
1904 spin_lock_irq(&dev->txq.lock); in usbnet_suspend()
1906 if (dev->txq.qlen && PMSG_IS_AUTO(message)) { in usbnet_suspend()
1907 dev->suspend_count--; in usbnet_suspend()
1908 spin_unlock_irq(&dev->txq.lock); in usbnet_suspend()
1909 return -EBUSY; in usbnet_suspend()
1911 set_bit(EVENT_DEV_ASLEEP, &dev->flags); in usbnet_suspend()
1912 spin_unlock_irq(&dev->txq.lock); in usbnet_suspend()
1918 netif_device_detach (dev->net); in usbnet_suspend()
1926 netif_device_attach (dev->net); in usbnet_suspend()
1939 if (!--dev->suspend_count) { in usbnet_resume()
1943 spin_lock_irq(&dev->txq.lock); in usbnet_resume()
1944 while ((res = usb_get_from_anchor(&dev->deferred))) { in usbnet_resume()
1946 skb = (struct sk_buff *)res->context; in usbnet_resume()
1950 kfree(res->sg); in usbnet_resume()
1952 usb_autopm_put_interface_async(dev->intf); in usbnet_resume()
1954 netif_trans_update(dev->net); in usbnet_resume()
1955 __skb_queue_tail(&dev->txq, skb); in usbnet_resume()
1960 clear_bit(EVENT_DEV_ASLEEP, &dev->flags); in usbnet_resume()
1961 spin_unlock_irq(&dev->txq.lock); in usbnet_resume()
1963 if (test_bit(EVENT_DEV_OPEN, &dev->flags)) { in usbnet_resume()
1967 if (netif_device_present(dev->net) && in usbnet_resume()
1968 !timer_pending(&dev->delay) && in usbnet_resume()
1969 !test_bit(EVENT_RX_HALT, &dev->flags)) in usbnet_resume()
1972 if (!(dev->txq.qlen >= TX_QLEN(dev))) in usbnet_resume()
1973 netif_tx_wake_all_queues(dev->net); in usbnet_resume()
1974 tasklet_schedule (&dev->bh); in usbnet_resume()
1978 if (test_and_clear_bit(EVENT_DEVICE_REPORT_IDLE, &dev->flags)) in usbnet_resume()
1992 if (!test_and_set_bit(EVENT_DEVICE_REPORT_IDLE, &dev->flags)) { in usbnet_device_suggests_idle()
1993 dev->intf->needs_remote_wakeup = 1; in usbnet_device_suggests_idle()
1994 usb_autopm_put_interface_async(dev->intf); in usbnet_device_suggests_idle()
2004 dev->intf->needs_remote_wakeup = on; in usbnet_manage_power()
2013 netif_carrier_on(dev->net); in usbnet_link_change()
2015 netif_carrier_off(dev->net); in usbnet_link_change()
2024 /*-------------------------------------------------------------------------*/
2029 int err = -ENOMEM; in __usbnet_read_cmd()
2031 netdev_dbg(dev->net, "usbnet_read_cmd cmd=0x%02x reqtype=%02x" in __usbnet_read_cmd()
2041 err = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), in __usbnet_read_cmd()
2048 netdev_dbg(dev->net, in __usbnet_read_cmd()
2061 int err = -ENOMEM; in __usbnet_write_cmd()
2063 netdev_dbg(dev->net, "usbnet_write_cmd cmd=0x%02x reqtype=%02x" in __usbnet_write_cmd()
2074 err = -EINVAL; in __usbnet_write_cmd()
2079 err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), in __usbnet_write_cmd()
2097 if (usb_autopm_get_interface(dev->intf) < 0) in usbnet_read_cmd()
2098 return -ENODEV; in usbnet_read_cmd()
2101 usb_autopm_put_interface(dev->intf); in usbnet_read_cmd()
2115 if (usb_autopm_get_interface(dev->intf) < 0) in usbnet_write_cmd()
2116 return -ENODEV; in usbnet_write_cmd()
2119 usb_autopm_put_interface(dev->intf); in usbnet_write_cmd()
2151 struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; in usbnet_async_cmd_cb()
2152 int status = urb->status; in usbnet_async_cmd_cb()
2155 dev_dbg(&urb->dev->dev, "%s failed with %d", in usbnet_async_cmd_cb()
2171 int err = -ENOMEM; in usbnet_write_cmd_async()
2174 netdev_dbg(dev->net, "usbnet_write_cmd cmd=0x%02x reqtype=%02x" in usbnet_write_cmd_async()
2185 netdev_err(dev->net, "Error allocating buffer" in usbnet_write_cmd_async()
2195 req->bRequestType = reqtype; in usbnet_write_cmd_async()
2196 req->bRequest = cmd; in usbnet_write_cmd_async()
2197 req->wValue = cpu_to_le16(value); in usbnet_write_cmd_async()
2198 req->wIndex = cpu_to_le16(index); in usbnet_write_cmd_async()
2199 req->wLength = cpu_to_le16(size); in usbnet_write_cmd_async()
2201 usb_fill_control_urb(urb, dev->udev, in usbnet_write_cmd_async()
2202 usb_sndctrlpipe(dev->udev, 0), in usbnet_write_cmd_async()
2205 urb->transfer_flags |= URB_FREE_BUFFER; in usbnet_write_cmd_async()
2209 netdev_err(dev->net, "Error submitting the control" in usbnet_write_cmd_async()
2224 urb->transfer_flags = 0; in usbnet_write_cmd_async()
2232 /*-------------------------------------------------------------------------*/