Lines Matching +full:overrun +full:- +full:throttle +full:- +full:ms
1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2000-2005 by David Brownell
5 * Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
10 * kinds of full and high speed networking devices: host-to-host cables,
37 /*-------------------------------------------------------------------------*/
40 * Nineteen USB 1.1 max size bulk transactions per frame (ms), max.
51 #define RX_QLEN(dev) ((dev)->rx_qlen)
52 #define TX_QLEN(dev) ((dev)->tx_qlen)
57 /* throttle rx/tx briefly after some faults, so hub_wq might disconnect()
65 /*-------------------------------------------------------------------------*/
71 static int msg_level = -1;
75 /*-------------------------------------------------------------------------*/
102 for (tmp = 0; tmp < intf->num_altsetting; tmp++) { in usbnet_get_endpoints()
106 alt = intf->altsetting + tmp; in usbnet_get_endpoints()
108 /* take the first altsetting with in-bulk + out-bulk; in usbnet_get_endpoints()
112 for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) { in usbnet_get_endpoints()
116 e = alt->endpoint + ep; in usbnet_get_endpoints()
119 if (!usb_endpoint_maxp(&e->desc)) in usbnet_get_endpoints()
122 switch (e->desc.bmAttributes) { in usbnet_get_endpoints()
124 if (!usb_endpoint_dir_in(&e->desc)) in usbnet_get_endpoints()
133 if (usb_endpoint_dir_in(&e->desc)) { in usbnet_get_endpoints()
147 return -EINVAL; in usbnet_get_endpoints()
149 if (alt->desc.bAlternateSetting != 0 || in usbnet_get_endpoints()
150 !(dev->driver_info->flags & FLAG_NO_SETINT)) { in usbnet_get_endpoints()
151 tmp = usb_set_interface (dev->udev, alt->desc.bInterfaceNumber, in usbnet_get_endpoints()
152 alt->desc.bAlternateSetting); in usbnet_get_endpoints()
157 dev->in = usb_rcvbulkpipe (dev->udev, in usbnet_get_endpoints()
158 in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); in usbnet_get_endpoints()
159 dev->out = usb_sndbulkpipe (dev->udev, in usbnet_get_endpoints()
160 out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK); in usbnet_get_endpoints()
161 dev->status = status; in usbnet_get_endpoints()
168 int tmp = -1, ret; in usbnet_get_ethernet_addr()
171 ret = usb_string(dev->udev, iMACAddress, buf, sizeof buf); in usbnet_get_ethernet_addr()
173 tmp = hex2bin(dev->net->dev_addr, buf, 6); in usbnet_get_ethernet_addr()
175 dev_dbg(&dev->udev->dev, in usbnet_get_ethernet_addr()
178 ret = -EINVAL; in usbnet_get_ethernet_addr()
187 struct usbnet *dev = urb->context; in intr_complete()
188 int status = urb->status; in intr_complete()
193 dev->driver_info->status(dev, urb); in intr_complete()
196 /* software-driven interface shutdown */ in intr_complete()
197 case -ENOENT: /* urb killed */ in intr_complete()
198 case -ESHUTDOWN: /* hardware gone */ in intr_complete()
199 netif_dbg(dev, ifdown, dev->net, in intr_complete()
207 netdev_dbg(dev->net, "intr status %d\n", status); in intr_complete()
213 netif_err(dev, timer, dev->net, in intr_complete()
214 "intr resubmit --> %d\n", status); in intr_complete()
224 if (!dev->driver_info->status) in init_status()
227 pipe = usb_rcvintpipe (dev->udev, in init_status()
228 dev->status->desc.bEndpointAddress in init_status()
230 maxp = usb_maxpacket (dev->udev, pipe, 0); in init_status()
233 period = max ((int) dev->status->desc.bInterval, in init_status()
234 (dev->udev->speed == USB_SPEED_HIGH) ? 7 : 3); in init_status()
238 dev->interrupt = usb_alloc_urb (0, GFP_KERNEL); in init_status()
239 if (!dev->interrupt) { in init_status()
241 return -ENOMEM; in init_status()
243 usb_fill_int_urb(dev->interrupt, dev->udev, pipe, in init_status()
245 dev->interrupt->transfer_flags |= URB_FREE_BUFFER; in init_status()
246 dev_dbg(&intf->dev, in init_status()
259 WARN_ON_ONCE(dev->interrupt == NULL); in usbnet_status_start()
260 if (dev->interrupt) { in usbnet_status_start()
261 mutex_lock(&dev->interrupt_mutex); in usbnet_status_start()
263 if (++dev->interrupt_count == 1) in usbnet_status_start()
264 ret = usb_submit_urb(dev->interrupt, mem_flags); in usbnet_status_start()
266 dev_dbg(&dev->udev->dev, "incremented interrupt URB count to %d\n", in usbnet_status_start()
267 dev->interrupt_count); in usbnet_status_start()
268 mutex_unlock(&dev->interrupt_mutex); in usbnet_status_start()
279 mutex_lock(&dev->interrupt_mutex); in __usbnet_status_start_force()
280 if (dev->interrupt_count) { in __usbnet_status_start_force()
281 ret = usb_submit_urb(dev->interrupt, mem_flags); in __usbnet_status_start_force()
282 dev_dbg(&dev->udev->dev, in __usbnet_status_start_force()
285 mutex_unlock(&dev->interrupt_mutex); in __usbnet_status_start_force()
292 if (dev->interrupt) { in usbnet_status_stop()
293 mutex_lock(&dev->interrupt_mutex); in usbnet_status_stop()
294 WARN_ON(dev->interrupt_count == 0); in usbnet_status_stop()
296 if (dev->interrupt_count && --dev->interrupt_count == 0) in usbnet_status_stop()
297 usb_kill_urb(dev->interrupt); in usbnet_status_stop()
299 dev_dbg(&dev->udev->dev, in usbnet_status_stop()
301 dev->interrupt_count); in usbnet_status_stop()
302 mutex_unlock(&dev->interrupt_mutex); in usbnet_status_stop()
310 if (dev->interrupt) { in __usbnet_status_stop_force()
311 mutex_lock(&dev->interrupt_mutex); in __usbnet_status_stop_force()
312 usb_kill_urb(dev->interrupt); in __usbnet_status_stop_force()
313 dev_dbg(&dev->udev->dev, "killed interrupt URB for suspend\n"); in __usbnet_status_stop_force()
314 mutex_unlock(&dev->interrupt_mutex); in __usbnet_status_stop_force()
324 struct pcpu_sw_netstats *stats64 = this_cpu_ptr(dev->net->tstats); in usbnet_skb_return()
328 if (test_bit(EVENT_RX_PAUSED, &dev->flags)) { in usbnet_skb_return()
329 skb_queue_tail(&dev->rxq_pause, skb); in usbnet_skb_return()
334 if (skb->protocol == 0) in usbnet_skb_return()
335 skb->protocol = eth_type_trans (skb, dev->net); in usbnet_skb_return()
337 flags = u64_stats_update_begin_irqsave(&stats64->syncp); in usbnet_skb_return()
338 stats64->rx_packets++; in usbnet_skb_return()
339 stats64->rx_bytes += skb->len; in usbnet_skb_return()
340 u64_stats_update_end_irqrestore(&stats64->syncp, flags); in usbnet_skb_return()
342 netif_dbg(dev, rx_status, dev->net, "< rx, len %zu, type 0x%x\n", in usbnet_skb_return()
343 skb->len + sizeof (struct ethhdr), skb->protocol); in usbnet_skb_return()
344 memset (skb->cb, 0, sizeof (struct skb_data)); in usbnet_skb_return()
351 netif_dbg(dev, rx_err, dev->net, in usbnet_skb_return()
359 enum usb_device_speed speed = dev->udev->speed; in usbnet_update_max_qlen()
361 if (!dev->rx_urb_size || !dev->hard_mtu) in usbnet_update_max_qlen()
365 dev->rx_qlen = MAX_QUEUE_MEMORY / dev->rx_urb_size; in usbnet_update_max_qlen()
366 dev->tx_qlen = MAX_QUEUE_MEMORY / dev->hard_mtu; in usbnet_update_max_qlen()
371 * Not take default 5ms qlen for super speed HC to in usbnet_update_max_qlen()
372 * save memory, and iperf tests show 2.5ms qlen can in usbnet_update_max_qlen()
375 dev->rx_qlen = 5 * MAX_QUEUE_MEMORY / dev->rx_urb_size; in usbnet_update_max_qlen()
376 dev->tx_qlen = 5 * MAX_QUEUE_MEMORY / dev->hard_mtu; in usbnet_update_max_qlen()
380 dev->rx_qlen = dev->tx_qlen = 4; in usbnet_update_max_qlen()
386 /*-------------------------------------------------------------------------
390 *-------------------------------------------------------------------------*/
395 int ll_mtu = new_mtu + net->hard_header_len; in usbnet_change_mtu()
396 int old_hard_mtu = dev->hard_mtu; in usbnet_change_mtu()
397 int old_rx_urb_size = dev->rx_urb_size; in usbnet_change_mtu()
399 // no second zero-length packet read wanted after mtu-sized packets in usbnet_change_mtu()
400 if ((ll_mtu % dev->maxpacket) == 0) in usbnet_change_mtu()
401 return -EDOM; in usbnet_change_mtu()
402 net->mtu = new_mtu; in usbnet_change_mtu()
404 dev->hard_mtu = net->mtu + net->hard_header_len; in usbnet_change_mtu()
405 if (dev->rx_urb_size == old_hard_mtu) { in usbnet_change_mtu()
406 dev->rx_urb_size = dev->hard_mtu; in usbnet_change_mtu()
407 if (dev->rx_urb_size > old_rx_urb_size) { in usbnet_change_mtu()
421 /* The caller must hold list->lock */
425 struct skb_data *entry = (struct skb_data *) newsk->cb; in __usbnet_queue_skb()
428 entry->state = state; in __usbnet_queue_skb()
431 /*-------------------------------------------------------------------------*/
442 struct skb_data *entry = (struct skb_data *) skb->cb; in defer_bh()
444 spin_lock_irqsave(&list->lock, flags); in defer_bh()
445 old_state = entry->state; in defer_bh()
446 entry->state = state; in defer_bh()
449 /* defer_bh() is never called with list == &dev->done. in defer_bh()
451 * dev->done.lock here with list->lock held. in defer_bh()
453 spin_lock_nested(&dev->done.lock, SINGLE_DEPTH_NESTING); in defer_bh()
455 __skb_queue_tail(&dev->done, skb); in defer_bh()
456 if (dev->done.qlen == 1) in defer_bh()
457 tasklet_schedule(&dev->bh); in defer_bh()
458 spin_unlock(&dev->done.lock); in defer_bh()
459 spin_unlock_irqrestore(&list->lock, flags); in defer_bh()
470 set_bit (work, &dev->flags); in usbnet_defer_kevent()
471 if (!schedule_work (&dev->kevent)) in usbnet_defer_kevent()
472 netdev_dbg(dev->net, "kevent %s may have been dropped\n", usbnet_event_names[work]); in usbnet_defer_kevent()
474 netdev_dbg(dev->net, "kevent %s scheduled\n", usbnet_event_names[work]); in usbnet_defer_kevent()
478 /*-------------------------------------------------------------------------*/
488 size_t size = dev->rx_urb_size; in rx_submit()
491 if (test_bit(EVENT_RX_KILL, &dev->flags)) { in rx_submit()
493 return -ENOLINK; in rx_submit()
496 if (test_bit(EVENT_NO_IP_ALIGN, &dev->flags)) in rx_submit()
497 skb = __netdev_alloc_skb(dev->net, size, flags); in rx_submit()
499 skb = __netdev_alloc_skb_ip_align(dev->net, size, flags); in rx_submit()
501 netif_dbg(dev, rx_err, dev->net, "no rx skb\n"); in rx_submit()
504 return -ENOMEM; in rx_submit()
507 entry = (struct skb_data *) skb->cb; in rx_submit()
508 entry->urb = urb; in rx_submit()
509 entry->dev = dev; in rx_submit()
510 entry->length = 0; in rx_submit()
512 usb_fill_bulk_urb (urb, dev->udev, dev->in, in rx_submit()
513 skb->data, size, rx_complete, skb); in rx_submit()
515 spin_lock_irqsave (&dev->rxq.lock, lockflags); in rx_submit()
517 if (netif_running (dev->net) && in rx_submit()
518 netif_device_present (dev->net) && in rx_submit()
519 test_bit(EVENT_DEV_OPEN, &dev->flags) && in rx_submit()
520 !test_bit (EVENT_RX_HALT, &dev->flags) && in rx_submit()
521 !test_bit (EVENT_DEV_ASLEEP, &dev->flags)) { in rx_submit()
523 case -EPIPE: in rx_submit()
526 case -ENOMEM: in rx_submit()
529 case -ENODEV: in rx_submit()
530 netif_dbg(dev, ifdown, dev->net, "device gone\n"); in rx_submit()
531 netif_device_detach (dev->net); in rx_submit()
533 case -EHOSTUNREACH: in rx_submit()
534 retval = -ENOLINK; in rx_submit()
537 netif_dbg(dev, rx_err, dev->net, in rx_submit()
539 tasklet_schedule (&dev->bh); in rx_submit()
542 __usbnet_queue_skb(&dev->rxq, skb, rx_start); in rx_submit()
545 netif_dbg(dev, ifdown, dev->net, "rx: stopped\n"); in rx_submit()
546 retval = -ENOLINK; in rx_submit()
548 spin_unlock_irqrestore (&dev->rxq.lock, lockflags); in rx_submit()
557 /*-------------------------------------------------------------------------*/
561 if (dev->driver_info->rx_fixup && in rx_process()
562 !dev->driver_info->rx_fixup (dev, skb)) { in rx_process()
564 if (!(dev->driver_info->flags & FLAG_RX_ASSEMBLE)) in rx_process()
565 dev->net->stats.rx_errors++; in rx_process()
571 if (dev->driver_info->flags & FLAG_MULTI_PACKET) in rx_process()
574 if (skb->len < ETH_HLEN) { in rx_process()
575 dev->net->stats.rx_errors++; in rx_process()
576 dev->net->stats.rx_length_errors++; in rx_process()
577 netif_dbg(dev, rx_err, dev->net, "rx length %d\n", skb->len); in rx_process()
584 skb_queue_tail(&dev->done, skb); in rx_process()
587 /*-------------------------------------------------------------------------*/
591 struct sk_buff *skb = (struct sk_buff *) urb->context; in rx_complete()
592 struct skb_data *entry = (struct skb_data *) skb->cb; in rx_complete()
593 struct usbnet *dev = entry->dev; in rx_complete()
594 int urb_status = urb->status; in rx_complete()
597 skb_put (skb, urb->actual_length); in rx_complete()
599 entry->urb = NULL; in rx_complete()
611 case -EPIPE: in rx_complete()
612 dev->net->stats.rx_errors++; in rx_complete()
616 /* software-driven interface shutdown */ in rx_complete()
617 case -ECONNRESET: /* async unlink */ in rx_complete()
618 case -ESHUTDOWN: /* hardware gone */ in rx_complete()
619 netif_dbg(dev, ifdown, dev->net, in rx_complete()
624 * throttle down resubmits, to avoid log floods; just temporarily, in rx_complete()
627 case -EPROTO: in rx_complete()
628 case -ETIME: in rx_complete()
629 case -EILSEQ: in rx_complete()
630 dev->net->stats.rx_errors++; in rx_complete()
631 if (!timer_pending (&dev->delay)) { in rx_complete()
632 mod_timer (&dev->delay, jiffies + THROTTLE_JIFFIES); in rx_complete()
633 netif_dbg(dev, link, dev->net, in rx_complete()
634 "rx throttle %d\n", urb_status); in rx_complete()
638 entry->urb = urb; in rx_complete()
642 /* data overrun ... flush fifo? */ in rx_complete()
643 case -EOVERFLOW: in rx_complete()
644 dev->net->stats.rx_over_errors++; in rx_complete()
649 dev->net->stats.rx_errors++; in rx_complete()
650 netif_dbg(dev, rx_err, dev->net, "rx status %d\n", urb_status); in rx_complete()
655 if (++dev->pkt_cnt > 30) { in rx_complete()
656 dev->pkt_cnt = 0; in rx_complete()
657 dev->pkt_err = 0; in rx_complete()
660 dev->pkt_err++; in rx_complete()
661 if (dev->pkt_err > 20) in rx_complete()
662 set_bit(EVENT_RX_KILL, &dev->flags); in rx_complete()
665 state = defer_bh(dev, skb, &dev->rxq, state); in rx_complete()
668 if (netif_running (dev->net) && in rx_complete()
669 !test_bit (EVENT_RX_HALT, &dev->flags) && in rx_complete()
672 usb_mark_last_busy(dev->udev); in rx_complete()
677 netif_dbg(dev, rx_err, dev->net, "no read resubmitted\n"); in rx_complete()
680 /*-------------------------------------------------------------------------*/
683 set_bit(EVENT_RX_PAUSED, &dev->flags); in usbnet_pause_rx()
685 netif_dbg(dev, rx_status, dev->net, "paused rx queue enabled\n"); in usbnet_pause_rx()
694 clear_bit(EVENT_RX_PAUSED, &dev->flags); in usbnet_resume_rx()
696 while ((skb = skb_dequeue(&dev->rxq_pause)) != NULL) { in usbnet_resume_rx()
701 tasklet_schedule(&dev->bh); in usbnet_resume_rx()
703 netif_dbg(dev, rx_status, dev->net, in usbnet_resume_rx()
710 skb_queue_purge(&dev->rxq_pause); in usbnet_purge_paused_rxq()
714 /*-------------------------------------------------------------------------*/
724 spin_lock_irqsave (&q->lock, flags); in unlink_urbs()
731 entry = (struct skb_data *) skb->cb; in unlink_urbs()
732 if (entry->state != unlink_start) in unlink_urbs()
737 entry->state = unlink_start; in unlink_urbs()
738 urb = entry->urb; in unlink_urbs()
743 * use-after-free problem inside usb_unlink_urb since in unlink_urbs()
748 spin_unlock_irqrestore(&q->lock, flags); in unlink_urbs()
749 // during some PM-driven resume scenarios, in unlink_urbs()
752 if (retval != -EINPROGRESS && retval != 0) in unlink_urbs()
753 netdev_dbg(dev->net, "unlink urb err, %d\n", retval); in unlink_urbs()
757 spin_lock_irqsave(&q->lock, flags); in unlink_urbs()
759 spin_unlock_irqrestore (&q->lock, flags); in unlink_urbs()
768 if (netif_running(dev->net)) { in usbnet_unlink_rx_urbs()
769 (void) unlink_urbs (dev, &dev->rxq); in usbnet_unlink_rx_urbs()
770 tasklet_schedule(&dev->bh); in usbnet_unlink_rx_urbs()
775 /*-------------------------------------------------------------------------*/
781 spin_lock_irqsave(&q->lock, flags); in wait_skb_queue_empty()
783 spin_unlock_irqrestore(&q->lock, flags); in wait_skb_queue_empty()
786 spin_lock_irqsave(&q->lock, flags); in wait_skb_queue_empty()
788 spin_unlock_irqrestore(&q->lock, flags); in wait_skb_queue_empty()
798 add_wait_queue(&dev->wait, &wait); in usbnet_terminate_urbs()
800 temp = unlink_urbs(dev, &dev->txq) + in usbnet_terminate_urbs()
801 unlink_urbs(dev, &dev->rxq); in usbnet_terminate_urbs()
804 wait_skb_queue_empty(&dev->rxq); in usbnet_terminate_urbs()
805 wait_skb_queue_empty(&dev->txq); in usbnet_terminate_urbs()
806 wait_skb_queue_empty(&dev->done); in usbnet_terminate_urbs()
807 netif_dbg(dev, ifdown, dev->net, in usbnet_terminate_urbs()
810 remove_wait_queue(&dev->wait, &wait); in usbnet_terminate_urbs()
816 const struct driver_info *info = dev->driver_info; in usbnet_stop()
819 clear_bit(EVENT_DEV_OPEN, &dev->flags); in usbnet_stop()
822 netif_info(dev, ifdown, dev->net, in usbnet_stop()
824 net->stats.rx_packets, net->stats.tx_packets, in usbnet_stop()
825 net->stats.rx_errors, net->stats.tx_errors); in usbnet_stop()
828 pm = usb_autopm_get_interface(dev->intf); in usbnet_stop()
831 if (info->stop) { in usbnet_stop()
832 retval = info->stop(dev); in usbnet_stop()
834 netif_info(dev, ifdown, dev->net, in usbnet_stop()
835 "stop fail (%d) usbnet usb-%s-%s, %s\n", in usbnet_stop()
837 dev->udev->bus->bus_name, dev->udev->devpath, in usbnet_stop()
838 info->description); in usbnet_stop()
841 if (!(info->flags & FLAG_AVOID_UNLINK_URBS)) in usbnet_stop()
848 mpn = !test_and_clear_bit(EVENT_NO_RUNTIME_PM, &dev->flags); in usbnet_stop()
854 dev->flags = 0; in usbnet_stop()
855 del_timer_sync (&dev->delay); in usbnet_stop()
856 tasklet_kill (&dev->bh); in usbnet_stop()
858 usb_autopm_put_interface(dev->intf); in usbnet_stop()
860 if (info->manage_power && mpn) in usbnet_stop()
861 info->manage_power(dev, 0); in usbnet_stop()
863 usb_autopm_put_interface(dev->intf); in usbnet_stop()
869 /*-------------------------------------------------------------------------*/
879 const struct driver_info *info = dev->driver_info; in usbnet_open()
881 if ((retval = usb_autopm_get_interface(dev->intf)) < 0) { in usbnet_open()
882 netif_info(dev, ifup, dev->net, in usbnet_open()
883 "resumption fail (%d) usbnet usb-%s-%s, %s\n", in usbnet_open()
885 dev->udev->bus->bus_name, in usbnet_open()
886 dev->udev->devpath, in usbnet_open()
887 info->description); in usbnet_open()
892 if (info->reset && (retval = info->reset (dev)) < 0) { in usbnet_open()
893 netif_info(dev, ifup, dev->net, in usbnet_open()
894 "open reset fail (%d) usbnet usb-%s-%s, %s\n", in usbnet_open()
896 dev->udev->bus->bus_name, in usbnet_open()
897 dev->udev->devpath, in usbnet_open()
898 info->description); in usbnet_open()
906 if (info->check_connect && (retval = info->check_connect (dev)) < 0) { in usbnet_open()
907 netif_err(dev, ifup, dev->net, "can't open; %d\n", retval); in usbnet_open()
912 if (dev->interrupt) { in usbnet_open()
915 netif_err(dev, ifup, dev->net, in usbnet_open()
921 set_bit(EVENT_DEV_OPEN, &dev->flags); in usbnet_open()
923 netif_info(dev, ifup, dev->net, in usbnet_open()
926 dev->net->mtu, in usbnet_open()
927 (dev->driver_info->flags & FLAG_FRAMING_NC) ? "NetChip" : in usbnet_open()
928 (dev->driver_info->flags & FLAG_FRAMING_GL) ? "GeneSys" : in usbnet_open()
929 (dev->driver_info->flags & FLAG_FRAMING_Z) ? "Zaurus" : in usbnet_open()
930 (dev->driver_info->flags & FLAG_FRAMING_RN) ? "RNDIS" : in usbnet_open()
931 (dev->driver_info->flags & FLAG_FRAMING_AX) ? "ASIX" : in usbnet_open()
935 dev->pkt_cnt = 0; in usbnet_open()
936 dev->pkt_err = 0; in usbnet_open()
937 clear_bit(EVENT_RX_KILL, &dev->flags); in usbnet_open()
940 tasklet_schedule (&dev->bh); in usbnet_open()
941 if (info->manage_power) { in usbnet_open()
942 retval = info->manage_power(dev, 1); in usbnet_open()
945 set_bit(EVENT_NO_RUNTIME_PM, &dev->flags); in usbnet_open()
947 usb_autopm_put_interface(dev->intf); in usbnet_open()
952 usb_autopm_put_interface(dev->intf); in usbnet_open()
958 /*-------------------------------------------------------------------------*/
972 if (!dev->mii.mdio_read) in usbnet_get_link_ksettings_mii()
973 return -EOPNOTSUPP; in usbnet_get_link_ksettings_mii()
975 mii_ethtool_get_link_ksettings(&dev->mii, cmd); in usbnet_get_link_ksettings_mii()
991 if (dev->rx_speed != SPEED_UNSET) in usbnet_get_link_ksettings_internal()
992 cmd->base.speed = dev->rx_speed / 1000000; in usbnet_get_link_ksettings_internal()
993 else if (dev->tx_speed != SPEED_UNSET) in usbnet_get_link_ksettings_internal()
994 cmd->base.speed = dev->tx_speed / 1000000; in usbnet_get_link_ksettings_internal()
996 cmd->base.speed = SPEED_UNKNOWN; in usbnet_get_link_ksettings_internal()
1008 if (!dev->mii.mdio_write) in usbnet_set_link_ksettings_mii()
1009 return -EOPNOTSUPP; in usbnet_set_link_ksettings_mii()
1011 retval = mii_ethtool_set_link_ksettings(&dev->mii, cmd); in usbnet_set_link_ksettings_mii()
1014 if (dev->driver_info->link_reset) in usbnet_set_link_ksettings_mii()
1015 dev->driver_info->link_reset(dev); in usbnet_set_link_ksettings_mii()
1029 if (dev->driver_info->check_connect) in usbnet_get_link()
1030 return dev->driver_info->check_connect (dev) == 0; in usbnet_get_link()
1033 if (dev->mii.mdio_read) in usbnet_get_link()
1034 return mii_link_ok(&dev->mii); in usbnet_get_link()
1045 if (!dev->mii.mdio_write) in usbnet_nway_reset()
1046 return -EOPNOTSUPP; in usbnet_nway_reset()
1048 return mii_nway_restart(&dev->mii); in usbnet_nway_reset()
1056 strlcpy (info->driver, dev->driver_name, sizeof info->driver); in usbnet_get_drvinfo()
1057 strlcpy (info->fw_version, dev->driver_info->description, in usbnet_get_drvinfo()
1058 sizeof info->fw_version); in usbnet_get_drvinfo()
1059 usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info); in usbnet_get_drvinfo()
1067 return dev->msg_enable; in usbnet_get_msglevel()
1075 dev->msg_enable = level; in usbnet_set_msglevel()
1091 /*-------------------------------------------------------------------------*/
1095 if (!test_bit(EVENT_DEV_OPEN, &dev->flags)) in __handle_link_change()
1098 if (!netif_carrier_ok(dev->net)) { in __handle_link_change()
1100 unlink_urbs(dev, &dev->rxq); in __handle_link_change()
1108 tasklet_schedule(&dev->bh); in __handle_link_change()
1114 clear_bit(EVENT_LINK_CHANGE, &dev->flags); in __handle_link_change()
1127 if (dev->driver_info->set_rx_mode) in __handle_set_rx_mode()
1128 (dev->driver_info->set_rx_mode)(dev); in __handle_set_rx_mode()
1130 clear_bit(EVENT_SET_RX_MODE, &dev->flags); in __handle_set_rx_mode()
1146 if (test_bit (EVENT_TX_HALT, &dev->flags)) { in usbnet_deferred_kevent()
1147 unlink_urbs (dev, &dev->txq); in usbnet_deferred_kevent()
1148 status = usb_autopm_get_interface(dev->intf); in usbnet_deferred_kevent()
1151 status = usb_clear_halt (dev->udev, dev->out); in usbnet_deferred_kevent()
1152 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1154 status != -EPIPE && in usbnet_deferred_kevent()
1155 status != -ESHUTDOWN) { in usbnet_deferred_kevent()
1158 netdev_err(dev->net, "can't clear tx halt, status %d\n", in usbnet_deferred_kevent()
1161 clear_bit (EVENT_TX_HALT, &dev->flags); in usbnet_deferred_kevent()
1162 if (status != -ESHUTDOWN) in usbnet_deferred_kevent()
1163 netif_wake_queue (dev->net); in usbnet_deferred_kevent()
1166 if (test_bit (EVENT_RX_HALT, &dev->flags)) { in usbnet_deferred_kevent()
1167 unlink_urbs (dev, &dev->rxq); in usbnet_deferred_kevent()
1168 status = usb_autopm_get_interface(dev->intf); in usbnet_deferred_kevent()
1171 status = usb_clear_halt (dev->udev, dev->in); in usbnet_deferred_kevent()
1172 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1174 status != -EPIPE && in usbnet_deferred_kevent()
1175 status != -ESHUTDOWN) { in usbnet_deferred_kevent()
1178 netdev_err(dev->net, "can't clear rx halt, status %d\n", in usbnet_deferred_kevent()
1181 clear_bit (EVENT_RX_HALT, &dev->flags); in usbnet_deferred_kevent()
1182 tasklet_schedule (&dev->bh); in usbnet_deferred_kevent()
1187 if (test_bit (EVENT_RX_MEMORY, &dev->flags)) { in usbnet_deferred_kevent()
1191 if (netif_running (dev->net)) in usbnet_deferred_kevent()
1194 clear_bit (EVENT_RX_MEMORY, &dev->flags); in usbnet_deferred_kevent()
1196 clear_bit (EVENT_RX_MEMORY, &dev->flags); in usbnet_deferred_kevent()
1197 status = usb_autopm_get_interface(dev->intf); in usbnet_deferred_kevent()
1202 if (rx_submit (dev, urb, GFP_KERNEL) == -ENOLINK) in usbnet_deferred_kevent()
1204 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1207 tasklet_schedule (&dev->bh); in usbnet_deferred_kevent()
1211 if (test_bit (EVENT_LINK_RESET, &dev->flags)) { in usbnet_deferred_kevent()
1212 const struct driver_info *info = dev->driver_info; in usbnet_deferred_kevent()
1215 clear_bit (EVENT_LINK_RESET, &dev->flags); in usbnet_deferred_kevent()
1216 status = usb_autopm_get_interface(dev->intf); in usbnet_deferred_kevent()
1219 if(info->link_reset && (retval = info->link_reset(dev)) < 0) { in usbnet_deferred_kevent()
1220 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1222 netdev_info(dev->net, "link reset failed (%d) usbnet usb-%s-%s, %s\n", in usbnet_deferred_kevent()
1224 dev->udev->bus->bus_name, in usbnet_deferred_kevent()
1225 dev->udev->devpath, in usbnet_deferred_kevent()
1226 info->description); in usbnet_deferred_kevent()
1228 usb_autopm_put_interface(dev->intf); in usbnet_deferred_kevent()
1235 if (test_bit (EVENT_LINK_CHANGE, &dev->flags)) in usbnet_deferred_kevent()
1238 if (test_bit (EVENT_SET_RX_MODE, &dev->flags)) in usbnet_deferred_kevent()
1242 if (dev->flags) in usbnet_deferred_kevent()
1243 netdev_dbg(dev->net, "kevent done, flags = 0x%lx\n", dev->flags); in usbnet_deferred_kevent()
1246 /*-------------------------------------------------------------------------*/
1250 struct sk_buff *skb = (struct sk_buff *) urb->context; in tx_complete()
1251 struct skb_data *entry = (struct skb_data *) skb->cb; in tx_complete()
1252 struct usbnet *dev = entry->dev; in tx_complete()
1254 if (urb->status == 0) { in tx_complete()
1255 struct pcpu_sw_netstats *stats64 = this_cpu_ptr(dev->net->tstats); in tx_complete()
1258 flags = u64_stats_update_begin_irqsave(&stats64->syncp); in tx_complete()
1259 stats64->tx_packets += entry->packets; in tx_complete()
1260 stats64->tx_bytes += entry->length; in tx_complete()
1261 u64_stats_update_end_irqrestore(&stats64->syncp, flags); in tx_complete()
1263 dev->net->stats.tx_errors++; in tx_complete()
1265 switch (urb->status) { in tx_complete()
1266 case -EPIPE: in tx_complete()
1270 /* software-driven interface shutdown */ in tx_complete()
1271 case -ECONNRESET: // async unlink in tx_complete()
1272 case -ESHUTDOWN: // hardware gone in tx_complete()
1278 case -EPROTO: in tx_complete()
1279 case -ETIME: in tx_complete()
1280 case -EILSEQ: in tx_complete()
1281 usb_mark_last_busy(dev->udev); in tx_complete()
1282 if (!timer_pending (&dev->delay)) { in tx_complete()
1283 mod_timer (&dev->delay, in tx_complete()
1285 netif_dbg(dev, link, dev->net, in tx_complete()
1286 "tx throttle %d\n", urb->status); in tx_complete()
1288 netif_stop_queue (dev->net); in tx_complete()
1291 netif_dbg(dev, tx_err, dev->net, in tx_complete()
1292 "tx err %d\n", entry->urb->status); in tx_complete()
1297 usb_autopm_put_interface_async(dev->intf); in tx_complete()
1298 (void) defer_bh(dev, skb, &dev->txq, tx_done); in tx_complete()
1301 /*-------------------------------------------------------------------------*/
1307 unlink_urbs (dev, &dev->txq); in usbnet_tx_timeout()
1308 tasklet_schedule (&dev->bh); in usbnet_tx_timeout()
1313 if (dev->driver_info->recover) in usbnet_tx_timeout()
1314 (dev->driver_info->recover)(dev); in usbnet_tx_timeout()
1318 /*-------------------------------------------------------------------------*/
1325 num_sgs = skb_shinfo(skb)->nr_frags + 1; in build_dma_sg()
1330 urb->sg = kmalloc_array(num_sgs + 1, sizeof(struct scatterlist), in build_dma_sg()
1332 if (!urb->sg) in build_dma_sg()
1333 return -ENOMEM; in build_dma_sg()
1335 urb->num_sgs = num_sgs; in build_dma_sg()
1336 sg_init_table(urb->sg, urb->num_sgs + 1); in build_dma_sg()
1338 sg_set_buf(&urb->sg[s++], skb->data, skb_headlen(skb)); in build_dma_sg()
1341 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) { in build_dma_sg()
1342 skb_frag_t *f = &skb_shinfo(skb)->frags[i]; in build_dma_sg()
1345 sg_set_page(&urb->sg[i + s], skb_frag_page(f), skb_frag_size(f), in build_dma_sg()
1348 urb->transfer_buffer_length = total_len; in build_dma_sg()
1360 const struct driver_info *info = dev->driver_info; in usbnet_start_xmit()
1367 // some devices want funky USB-level framing, for in usbnet_start_xmit()
1369 if (info->tx_fixup) { in usbnet_start_xmit()
1370 skb = info->tx_fixup (dev, skb, GFP_ATOMIC); in usbnet_start_xmit()
1373 if (info->flags & FLAG_MULTI_PACKET) in usbnet_start_xmit()
1375 netif_dbg(dev, tx_err, dev->net, "can't tx_fixup skb\n"); in usbnet_start_xmit()
1381 netif_dbg(dev, tx_err, dev->net, "no urb\n"); in usbnet_start_xmit()
1385 entry = (struct skb_data *) skb->cb; in usbnet_start_xmit()
1386 entry->urb = urb; in usbnet_start_xmit()
1387 entry->dev = dev; in usbnet_start_xmit()
1389 usb_fill_bulk_urb (urb, dev->udev, dev->out, in usbnet_start_xmit()
1390 skb->data, skb->len, tx_complete, skb); in usbnet_start_xmit()
1391 if (dev->can_dma_sg) { in usbnet_start_xmit()
1395 length = urb->transfer_buffer_length; in usbnet_start_xmit()
1398 * NOTE: strictly conforming cdc-ether devices should expect in usbnet_start_xmit()
1399 * the ZLP here, but ignore the one-byte packet. in usbnet_start_xmit()
1404 if (length % dev->maxpacket == 0) { in usbnet_start_xmit()
1405 if (!(info->flags & FLAG_SEND_ZLP)) { in usbnet_start_xmit()
1406 if (!(info->flags & FLAG_MULTI_PACKET)) { in usbnet_start_xmit()
1408 if (skb_tailroom(skb) && !urb->num_sgs) { in usbnet_start_xmit()
1409 skb->data[skb->len] = 0; in usbnet_start_xmit()
1411 } else if (urb->num_sgs) in usbnet_start_xmit()
1412 sg_set_buf(&urb->sg[urb->num_sgs++], in usbnet_start_xmit()
1413 dev->padding_pkt, 1); in usbnet_start_xmit()
1416 urb->transfer_flags |= URB_ZERO_PACKET; in usbnet_start_xmit()
1418 urb->transfer_buffer_length = length; in usbnet_start_xmit()
1420 if (info->flags & FLAG_MULTI_PACKET) { in usbnet_start_xmit()
1425 entry->length += length; in usbnet_start_xmit()
1426 if (WARN_ON_ONCE(entry->length <= 0)) in usbnet_start_xmit()
1427 entry->length = length; in usbnet_start_xmit()
1432 spin_lock_irqsave(&dev->txq.lock, flags); in usbnet_start_xmit()
1433 retval = usb_autopm_get_interface_async(dev->intf); in usbnet_start_xmit()
1435 spin_unlock_irqrestore(&dev->txq.lock, flags); in usbnet_start_xmit()
1439 usb_autopm_put_interface_async(dev->intf); in usbnet_start_xmit()
1440 spin_unlock_irqrestore(&dev->txq.lock, flags); in usbnet_start_xmit()
1446 if (test_bit(EVENT_DEV_ASLEEP, &dev->flags)) { in usbnet_start_xmit()
1448 usb_anchor_urb(urb, &dev->deferred); in usbnet_start_xmit()
1452 spin_unlock_irqrestore(&dev->txq.lock, flags); in usbnet_start_xmit()
1453 netdev_dbg(dev->net, "Delaying transmission for resumption\n"); in usbnet_start_xmit()
1459 case -EPIPE: in usbnet_start_xmit()
1462 usb_autopm_put_interface_async(dev->intf); in usbnet_start_xmit()
1465 usb_autopm_put_interface_async(dev->intf); in usbnet_start_xmit()
1466 netif_dbg(dev, tx_err, dev->net, in usbnet_start_xmit()
1471 __usbnet_queue_skb(&dev->txq, skb, tx_start); in usbnet_start_xmit()
1472 if (dev->txq.qlen >= TX_QLEN (dev)) in usbnet_start_xmit()
1475 spin_unlock_irqrestore (&dev->txq.lock, flags); in usbnet_start_xmit()
1478 netif_dbg(dev, tx_err, dev->net, "drop, code %d\n", retval); in usbnet_start_xmit()
1480 dev->net->stats.tx_dropped++; in usbnet_start_xmit()
1485 kfree(urb->sg); in usbnet_start_xmit()
1489 netif_dbg(dev, tx_queued, dev->net, in usbnet_start_xmit()
1490 "> tx, len %u, type 0x%x\n", length, skb->protocol); in usbnet_start_xmit()
1505 for (i = 0; i < 10 && dev->rxq.qlen < RX_QLEN(dev); i++) { in rx_alloc_submit()
1512 ret = -ENOMEM; in rx_alloc_submit()
1520 /*-------------------------------------------------------------------------*/
1530 while ((skb = skb_dequeue (&dev->done))) { in usbnet_bh()
1531 entry = (struct skb_data *) skb->cb; in usbnet_bh()
1532 switch (entry->state) { in usbnet_bh()
1534 entry->state = rx_cleanup; in usbnet_bh()
1538 kfree(entry->urb->sg); in usbnet_bh()
1541 usb_free_urb (entry->urb); in usbnet_bh()
1545 netdev_dbg(dev->net, "bogus skb state %d\n", entry->state); in usbnet_bh()
1550 clear_bit(EVENT_RX_KILL, &dev->flags); in usbnet_bh()
1555 if (waitqueue_active(&dev->wait)) { in usbnet_bh()
1556 if (dev->txq.qlen + dev->rxq.qlen + dev->done.qlen == 0) in usbnet_bh()
1557 wake_up_all(&dev->wait); in usbnet_bh()
1560 } else if (netif_running (dev->net) && in usbnet_bh()
1561 netif_device_present (dev->net) && in usbnet_bh()
1562 netif_carrier_ok(dev->net) && in usbnet_bh()
1563 !timer_pending(&dev->delay) && in usbnet_bh()
1564 !test_bit(EVENT_RX_PAUSED, &dev->flags) && in usbnet_bh()
1565 !test_bit(EVENT_RX_HALT, &dev->flags)) { in usbnet_bh()
1566 int temp = dev->rxq.qlen; in usbnet_bh()
1569 if (rx_alloc_submit(dev, GFP_ATOMIC) == -ENOLINK) in usbnet_bh()
1571 if (temp != dev->rxq.qlen) in usbnet_bh()
1572 netif_dbg(dev, link, dev->net, in usbnet_bh()
1573 "rxqlen %d --> %d\n", in usbnet_bh()
1574 temp, dev->rxq.qlen); in usbnet_bh()
1575 if (dev->rxq.qlen < RX_QLEN(dev)) in usbnet_bh()
1576 tasklet_schedule (&dev->bh); in usbnet_bh()
1578 if (dev->txq.qlen < TX_QLEN (dev)) in usbnet_bh()
1579 netif_wake_queue (dev->net); in usbnet_bh()
1587 usbnet_bh(&dev->delay); in usbnet_bh_tasklet()
1591 /*-------------------------------------------------------------------------
1595 *-------------------------------------------------------------------------*/
1612 netif_info(dev, probe, dev->net, "unregister '%s' usb-%s-%s, %s\n", in usbnet_disconnect()
1613 intf->dev.driver->name, in usbnet_disconnect()
1614 xdev->bus->bus_name, xdev->devpath, in usbnet_disconnect()
1615 dev->driver_info->description); in usbnet_disconnect()
1617 if (dev->driver_info->unbind) in usbnet_disconnect()
1618 dev->driver_info->unbind(dev, intf); in usbnet_disconnect()
1620 net = dev->net; in usbnet_disconnect()
1623 cancel_work_sync(&dev->kevent); in usbnet_disconnect()
1625 usb_scuttle_anchored_urbs(&dev->deferred); in usbnet_disconnect()
1627 usb_kill_urb(dev->interrupt); in usbnet_disconnect()
1628 usb_free_urb(dev->interrupt); in usbnet_disconnect()
1629 kfree(dev->padding_pkt); in usbnet_disconnect()
1631 free_percpu(net->tstats); in usbnet_disconnect()
1648 /*-------------------------------------------------------------------------*/
1670 struct usb_driver *driver = to_usb_driver(udev->dev.driver); in usbnet_probe()
1676 if (!driver->supports_autosuspend) { in usbnet_probe()
1677 driver->supports_autosuspend = 1; in usbnet_probe()
1678 pm_runtime_enable(&udev->dev); in usbnet_probe()
1681 name = udev->dev.driver->name; in usbnet_probe()
1682 info = (const struct driver_info *) prod->driver_info; in usbnet_probe()
1684 dev_dbg (&udev->dev, "blacklisted by %s\n", name); in usbnet_probe()
1685 return -ENODEV; in usbnet_probe()
1688 interface = udev->cur_altsetting; in usbnet_probe()
1690 status = -ENOMEM; in usbnet_probe()
1698 SET_NETDEV_DEV(net, &udev->dev); in usbnet_probe()
1701 dev->udev = xdev; in usbnet_probe()
1702 dev->intf = udev; in usbnet_probe()
1703 dev->driver_info = info; in usbnet_probe()
1704 dev->driver_name = name; in usbnet_probe()
1705 dev->rx_speed = SPEED_UNSET; in usbnet_probe()
1706 dev->tx_speed = SPEED_UNSET; in usbnet_probe()
1708 net->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); in usbnet_probe()
1709 if (!net->tstats) in usbnet_probe()
1712 dev->msg_enable = netif_msg_init (msg_level, NETIF_MSG_DRV in usbnet_probe()
1714 init_waitqueue_head(&dev->wait); in usbnet_probe()
1715 skb_queue_head_init (&dev->rxq); in usbnet_probe()
1716 skb_queue_head_init (&dev->txq); in usbnet_probe()
1717 skb_queue_head_init (&dev->done); in usbnet_probe()
1718 skb_queue_head_init(&dev->rxq_pause); in usbnet_probe()
1719 tasklet_setup(&dev->bh, usbnet_bh_tasklet); in usbnet_probe()
1720 INIT_WORK (&dev->kevent, usbnet_deferred_kevent); in usbnet_probe()
1721 init_usb_anchor(&dev->deferred); in usbnet_probe()
1722 timer_setup(&dev->delay, usbnet_bh, 0); in usbnet_probe()
1723 mutex_init (&dev->phy_mutex); in usbnet_probe()
1724 mutex_init(&dev->interrupt_mutex); in usbnet_probe()
1725 dev->interrupt_count = 0; in usbnet_probe()
1727 dev->net = net; in usbnet_probe()
1728 strscpy(net->name, "usb%d", sizeof(net->name)); in usbnet_probe()
1729 memcpy (net->dev_addr, node_id, sizeof node_id); in usbnet_probe()
1734 dev->hard_mtu = net->mtu + net->hard_header_len; in usbnet_probe()
1735 net->min_mtu = 0; in usbnet_probe()
1736 net->max_mtu = ETH_MAX_MTU; in usbnet_probe()
1738 net->netdev_ops = &usbnet_netdev_ops; in usbnet_probe()
1739 net->watchdog_timeo = TX_TIMEOUT_JIFFIES; in usbnet_probe()
1740 net->ethtool_ops = &usbnet_ethtool_ops; in usbnet_probe()
1742 // allow device-specific bind/init procedures in usbnet_probe()
1743 // NOTE net->name still not usable ... in usbnet_probe()
1744 if (info->bind) { in usbnet_probe()
1745 status = info->bind (dev, udev); in usbnet_probe()
1749 // heuristic: "usb%d" for links we know are two-host, in usbnet_probe()
1752 if ((dev->driver_info->flags & FLAG_ETHER) != 0 && in usbnet_probe()
1753 ((dev->driver_info->flags & FLAG_POINTTOPOINT) == 0 || in usbnet_probe()
1754 (net->dev_addr [0] & 0x02) == 0)) in usbnet_probe()
1755 strscpy(net->name, "eth%d", sizeof(net->name)); in usbnet_probe()
1757 if ((dev->driver_info->flags & FLAG_WLAN) != 0) in usbnet_probe()
1758 strscpy(net->name, "wlan%d", sizeof(net->name)); in usbnet_probe()
1760 if ((dev->driver_info->flags & FLAG_WWAN) != 0) in usbnet_probe()
1761 strscpy(net->name, "wwan%d", sizeof(net->name)); in usbnet_probe()
1764 if ((dev->driver_info->flags & FLAG_NOARP) != 0) in usbnet_probe()
1765 net->flags |= IFF_NOARP; in usbnet_probe()
1768 if (net->mtu > (dev->hard_mtu - net->hard_header_len)) in usbnet_probe()
1769 net->mtu = dev->hard_mtu - net->hard_header_len; in usbnet_probe()
1770 } else if (!info->in || !info->out) in usbnet_probe()
1773 dev->in = usb_rcvbulkpipe (xdev, info->in); in usbnet_probe()
1774 dev->out = usb_sndbulkpipe (xdev, info->out); in usbnet_probe()
1775 if (!(info->flags & FLAG_NO_SETINT)) in usbnet_probe()
1777 interface->desc.bInterfaceNumber, in usbnet_probe()
1778 interface->desc.bAlternateSetting); in usbnet_probe()
1783 if (status >= 0 && dev->status) in usbnet_probe()
1788 if (!dev->rx_urb_size) in usbnet_probe()
1789 dev->rx_urb_size = dev->hard_mtu; in usbnet_probe()
1790 dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1); in usbnet_probe()
1791 if (dev->maxpacket == 0) { in usbnet_probe()
1793 status = -ENODEV; in usbnet_probe()
1798 if (ether_addr_equal(net->dev_addr, node_id)) in usbnet_probe()
1799 net->addr_assign_type = NET_ADDR_RANDOM; in usbnet_probe()
1801 if ((dev->driver_info->flags & FLAG_WLAN) != 0) in usbnet_probe()
1803 if ((dev->driver_info->flags & FLAG_WWAN) != 0) in usbnet_probe()
1809 if (dev->can_dma_sg && !(info->flags & FLAG_SEND_ZLP) && in usbnet_probe()
1810 !(info->flags & FLAG_MULTI_PACKET)) { in usbnet_probe()
1811 dev->padding_pkt = kzalloc(1, GFP_KERNEL); in usbnet_probe()
1812 if (!dev->padding_pkt) { in usbnet_probe()
1813 status = -ENOMEM; in usbnet_probe()
1821 netif_info(dev, probe, dev->net, in usbnet_probe()
1822 "register '%s' at usb-%s-%s, %s, %pM\n", in usbnet_probe()
1823 udev->dev.driver->name, in usbnet_probe()
1824 xdev->bus->bus_name, xdev->devpath, in usbnet_probe()
1825 dev->driver_info->description, in usbnet_probe()
1826 net->dev_addr); in usbnet_probe()
1833 if (dev->driver_info->flags & FLAG_LINK_INTR) in usbnet_probe()
1839 kfree(dev->padding_pkt); in usbnet_probe()
1841 usb_free_urb(dev->interrupt); in usbnet_probe()
1843 if (info->unbind) in usbnet_probe()
1844 info->unbind (dev, udev); in usbnet_probe()
1851 cancel_work_sync(&dev->kevent); in usbnet_probe()
1852 del_timer_sync(&dev->delay); in usbnet_probe()
1853 free_percpu(net->tstats); in usbnet_probe()
1861 /*-------------------------------------------------------------------------*/
1872 if (!dev->suspend_count++) { in usbnet_suspend()
1873 spin_lock_irq(&dev->txq.lock); in usbnet_suspend()
1875 if (dev->txq.qlen && PMSG_IS_AUTO(message)) { in usbnet_suspend()
1876 dev->suspend_count--; in usbnet_suspend()
1877 spin_unlock_irq(&dev->txq.lock); in usbnet_suspend()
1878 return -EBUSY; in usbnet_suspend()
1880 set_bit(EVENT_DEV_ASLEEP, &dev->flags); in usbnet_suspend()
1881 spin_unlock_irq(&dev->txq.lock); in usbnet_suspend()
1887 netif_device_detach (dev->net); in usbnet_suspend()
1895 netif_device_attach (dev->net); in usbnet_suspend()
1908 if (!--dev->suspend_count) { in usbnet_resume()
1912 spin_lock_irq(&dev->txq.lock); in usbnet_resume()
1913 while ((res = usb_get_from_anchor(&dev->deferred))) { in usbnet_resume()
1915 skb = (struct sk_buff *)res->context; in usbnet_resume()
1919 kfree(res->sg); in usbnet_resume()
1921 usb_autopm_put_interface_async(dev->intf); in usbnet_resume()
1923 netif_trans_update(dev->net); in usbnet_resume()
1924 __skb_queue_tail(&dev->txq, skb); in usbnet_resume()
1929 clear_bit(EVENT_DEV_ASLEEP, &dev->flags); in usbnet_resume()
1930 spin_unlock_irq(&dev->txq.lock); in usbnet_resume()
1932 if (test_bit(EVENT_DEV_OPEN, &dev->flags)) { in usbnet_resume()
1936 if (netif_device_present(dev->net) && in usbnet_resume()
1937 !timer_pending(&dev->delay) && in usbnet_resume()
1938 !test_bit(EVENT_RX_HALT, &dev->flags)) in usbnet_resume()
1941 if (!(dev->txq.qlen >= TX_QLEN(dev))) in usbnet_resume()
1942 netif_tx_wake_all_queues(dev->net); in usbnet_resume()
1943 tasklet_schedule (&dev->bh); in usbnet_resume()
1947 if (test_and_clear_bit(EVENT_DEVICE_REPORT_IDLE, &dev->flags)) in usbnet_resume()
1961 if (!test_and_set_bit(EVENT_DEVICE_REPORT_IDLE, &dev->flags)) { in usbnet_device_suggests_idle()
1962 dev->intf->needs_remote_wakeup = 1; in usbnet_device_suggests_idle()
1963 usb_autopm_put_interface_async(dev->intf); in usbnet_device_suggests_idle()
1973 dev->intf->needs_remote_wakeup = on; in usbnet_manage_power()
1982 netif_carrier_on(dev->net); in usbnet_link_change()
1984 netif_carrier_off(dev->net); in usbnet_link_change()
1993 /*-------------------------------------------------------------------------*/
1998 int err = -ENOMEM; in __usbnet_read_cmd()
2000 netdev_dbg(dev->net, "usbnet_read_cmd cmd=0x%02x reqtype=%02x" in __usbnet_read_cmd()
2010 err = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0), in __usbnet_read_cmd()
2017 netdev_dbg(dev->net, in __usbnet_read_cmd()
2030 int err = -ENOMEM; in __usbnet_write_cmd()
2032 netdev_dbg(dev->net, "usbnet_write_cmd cmd=0x%02x reqtype=%02x" in __usbnet_write_cmd()
2043 err = -EINVAL; in __usbnet_write_cmd()
2048 err = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0), in __usbnet_write_cmd()
2066 if (usb_autopm_get_interface(dev->intf) < 0) in usbnet_read_cmd()
2067 return -ENODEV; in usbnet_read_cmd()
2070 usb_autopm_put_interface(dev->intf); in usbnet_read_cmd()
2084 if (usb_autopm_get_interface(dev->intf) < 0) in usbnet_write_cmd()
2085 return -ENODEV; in usbnet_write_cmd()
2088 usb_autopm_put_interface(dev->intf); in usbnet_write_cmd()
2120 struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context; in usbnet_async_cmd_cb()
2121 int status = urb->status; in usbnet_async_cmd_cb()
2124 dev_dbg(&urb->dev->dev, "%s failed with %d", in usbnet_async_cmd_cb()
2140 int err = -ENOMEM; in usbnet_write_cmd_async()
2143 netdev_dbg(dev->net, "usbnet_write_cmd cmd=0x%02x reqtype=%02x" in usbnet_write_cmd_async()
2154 netdev_err(dev->net, "Error allocating buffer" in usbnet_write_cmd_async()
2164 req->bRequestType = reqtype; in usbnet_write_cmd_async()
2165 req->bRequest = cmd; in usbnet_write_cmd_async()
2166 req->wValue = cpu_to_le16(value); in usbnet_write_cmd_async()
2167 req->wIndex = cpu_to_le16(index); in usbnet_write_cmd_async()
2168 req->wLength = cpu_to_le16(size); in usbnet_write_cmd_async()
2170 usb_fill_control_urb(urb, dev->udev, in usbnet_write_cmd_async()
2171 usb_sndctrlpipe(dev->udev, 0), in usbnet_write_cmd_async()
2174 urb->transfer_flags |= URB_FREE_BUFFER; in usbnet_write_cmd_async()
2178 netdev_err(dev->net, "Error submitting the control" in usbnet_write_cmd_async()
2194 /*-------------------------------------------------------------------------*/