1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2009 Andrew Thompson (thompsa@FreeBSD.org)
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/bus.h>
32 #include <sys/condvar.h>
33 #include <sys/kernel.h>
34 #include <sys/lock.h>
35 #include <sys/malloc.h>
36 #include <sys/mbuf.h>
37 #include <sys/module.h>
38 #include <sys/mutex.h>
39 #include <sys/socket.h>
40 #include <sys/sockio.h>
41 #include <sys/sysctl.h>
42 #include <sys/sx.h>
43
44 #include <net/if.h>
45 #include <net/if_var.h>
46 #include <net/ethernet.h>
47 #include <net/if_types.h>
48 #include <net/if_media.h>
49 #include <net/if_vlan_var.h>
50
51 #include <dev/mii/mii.h>
52 #include <dev/mii/miivar.h>
53
54 #include <dev/usb/usb.h>
55 #include <dev/usb/usbdi.h>
56
57 #include <dev/usb/usb_process.h>
58 #include <dev/usb/net/usb_ethernet.h>
59
60 static SYSCTL_NODE(_net, OID_AUTO, ue, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
61 "USB Ethernet parameters");
62
63 #define UE_LOCK(_ue) mtx_lock((_ue)->ue_mtx)
64 #define UE_UNLOCK(_ue) mtx_unlock((_ue)->ue_mtx)
65 #define UE_LOCK_ASSERT(_ue, t) mtx_assert((_ue)->ue_mtx, t)
66
67 MODULE_DEPEND(uether, usb, 1, 1, 1);
68 MODULE_DEPEND(uether, miibus, 1, 1, 1);
69
70 static struct unrhdr *ueunit;
71
72 static usb_proc_callback_t ue_attach_post_task;
73 static usb_proc_callback_t ue_promisc_task;
74 static usb_proc_callback_t ue_setmulti_task;
75 static usb_proc_callback_t ue_ifmedia_task;
76 static usb_proc_callback_t ue_tick_task;
77 static usb_proc_callback_t ue_start_task;
78 static usb_proc_callback_t ue_stop_task;
79
80 static void ue_init(void *);
81 static void ue_start(struct ifnet *);
82 static int ue_ifmedia_upd(struct ifnet *);
83 static void ue_watchdog(void *);
84
85 /*
86 * Return values:
87 * 0: success
88 * Else: device has been detached
89 */
90 uint8_t
uether_pause(struct usb_ether * ue,unsigned int _ticks)91 uether_pause(struct usb_ether *ue, unsigned int _ticks)
92 {
93 if (usb_proc_is_gone(&ue->ue_tq)) {
94 /* nothing to do */
95 return (1);
96 }
97 usb_pause_mtx(ue->ue_mtx, _ticks);
98 return (0);
99 }
100
101 static void
ue_queue_command(struct usb_ether * ue,usb_proc_callback_t * fn,struct usb_proc_msg * t0,struct usb_proc_msg * t1)102 ue_queue_command(struct usb_ether *ue,
103 usb_proc_callback_t *fn,
104 struct usb_proc_msg *t0, struct usb_proc_msg *t1)
105 {
106 struct usb_ether_cfg_task *task;
107
108 UE_LOCK_ASSERT(ue, MA_OWNED);
109
110 if (usb_proc_is_gone(&ue->ue_tq)) {
111 return; /* nothing to do */
112 }
113 /*
114 * NOTE: The task cannot get executed before we drop the
115 * "sc_mtx" mutex. It is safe to update fields in the message
116 * structure after that the message got queued.
117 */
118 task = (struct usb_ether_cfg_task *)
119 usb_proc_msignal(&ue->ue_tq, t0, t1);
120
121 /* Setup callback and self pointers */
122 task->hdr.pm_callback = fn;
123 task->ue = ue;
124
125 /*
126 * Start and stop must be synchronous!
127 */
128 if ((fn == ue_start_task) || (fn == ue_stop_task))
129 usb_proc_mwait(&ue->ue_tq, t0, t1);
130 }
131
132 struct ifnet *
uether_getifp(struct usb_ether * ue)133 uether_getifp(struct usb_ether *ue)
134 {
135 return (ue->ue_ifp);
136 }
137
138 struct mii_data *
uether_getmii(struct usb_ether * ue)139 uether_getmii(struct usb_ether *ue)
140 {
141 return (device_get_softc(ue->ue_miibus));
142 }
143
144 void *
uether_getsc(struct usb_ether * ue)145 uether_getsc(struct usb_ether *ue)
146 {
147 return (ue->ue_sc);
148 }
149
150 static int
ue_sysctl_parent(SYSCTL_HANDLER_ARGS)151 ue_sysctl_parent(SYSCTL_HANDLER_ARGS)
152 {
153 struct usb_ether *ue = arg1;
154 const char *name;
155
156 name = device_get_nameunit(ue->ue_dev);
157 return SYSCTL_OUT_STR(req, name);
158 }
159
160 int
uether_ifattach(struct usb_ether * ue)161 uether_ifattach(struct usb_ether *ue)
162 {
163 int error;
164
165 /* check some critical parameters */
166 if ((ue->ue_dev == NULL) ||
167 (ue->ue_udev == NULL) ||
168 (ue->ue_mtx == NULL) ||
169 (ue->ue_methods == NULL))
170 return (EINVAL);
171
172 error = usb_proc_create(&ue->ue_tq, ue->ue_mtx,
173 device_get_nameunit(ue->ue_dev), USB_PRI_MED);
174 if (error) {
175 device_printf(ue->ue_dev, "could not setup taskqueue\n");
176 goto error;
177 }
178
179 /* fork rest of the attach code */
180 UE_LOCK(ue);
181 ue_queue_command(ue, ue_attach_post_task,
182 &ue->ue_sync_task[0].hdr,
183 &ue->ue_sync_task[1].hdr);
184 UE_UNLOCK(ue);
185
186 error:
187 return (error);
188 }
189
190 void
uether_ifattach_wait(struct usb_ether * ue)191 uether_ifattach_wait(struct usb_ether *ue)
192 {
193
194 UE_LOCK(ue);
195 usb_proc_mwait(&ue->ue_tq,
196 &ue->ue_sync_task[0].hdr,
197 &ue->ue_sync_task[1].hdr);
198 UE_UNLOCK(ue);
199 }
200
201 static void
ue_attach_post_task(struct usb_proc_msg * _task)202 ue_attach_post_task(struct usb_proc_msg *_task)
203 {
204 struct usb_ether_cfg_task *task =
205 (struct usb_ether_cfg_task *)_task;
206 struct usb_ether *ue = task->ue;
207 struct ifnet *ifp;
208 int error;
209 char num[14]; /* sufficient for 32 bits */
210
211 /* first call driver's post attach routine */
212 ue->ue_methods->ue_attach_post(ue);
213
214 UE_UNLOCK(ue);
215
216 ue->ue_unit = alloc_unr(ueunit);
217 usb_callout_init_mtx(&ue->ue_watchdog, ue->ue_mtx, 0);
218 sysctl_ctx_init(&ue->ue_sysctl_ctx);
219 mbufq_init(&ue->ue_rxq, 0 /* unlimited length */);
220
221 error = 0;
222 CURVNET_SET_QUIET(vnet0);
223 ifp = if_alloc(IFT_ETHER);
224 ifp->if_softc = ue;
225 if_initname(ifp, "ue", ue->ue_unit);
226 if (ue->ue_methods->ue_attach_post_sub != NULL) {
227 ue->ue_ifp = ifp;
228 error = ue->ue_methods->ue_attach_post_sub(ue);
229 } else {
230 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
231 if (ue->ue_methods->ue_ioctl != NULL)
232 ifp->if_ioctl = ue->ue_methods->ue_ioctl;
233 else
234 ifp->if_ioctl = uether_ioctl;
235 ifp->if_start = ue_start;
236 ifp->if_init = ue_init;
237 IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
238 ifp->if_snd.ifq_drv_maxlen = ifqmaxlen;
239 IFQ_SET_READY(&ifp->if_snd);
240 ue->ue_ifp = ifp;
241
242 if (ue->ue_methods->ue_mii_upd != NULL &&
243 ue->ue_methods->ue_mii_sts != NULL) {
244 bus_topo_lock();
245 error = mii_attach(ue->ue_dev, &ue->ue_miibus, ifp,
246 ue_ifmedia_upd, ue->ue_methods->ue_mii_sts,
247 BMSR_DEFCAPMASK, MII_PHY_ANY, MII_OFFSET_ANY, 0);
248 bus_topo_unlock();
249 }
250 }
251
252 if (error) {
253 device_printf(ue->ue_dev, "attaching PHYs failed\n");
254 goto fail;
255 }
256
257 if_printf(ifp, "<USB Ethernet> on %s\n", device_get_nameunit(ue->ue_dev));
258 ether_ifattach(ifp, ue->ue_eaddr);
259 /* Tell upper layer we support VLAN oversized frames. */
260 if (ifp->if_capabilities & IFCAP_VLAN_MTU)
261 ifp->if_hdrlen = sizeof(struct ether_vlan_header);
262
263 CURVNET_RESTORE();
264
265 snprintf(num, sizeof(num), "%u", ue->ue_unit);
266 ue->ue_sysctl_oid = SYSCTL_ADD_NODE(&ue->ue_sysctl_ctx,
267 &SYSCTL_NODE_CHILDREN(_net, ue),
268 OID_AUTO, num, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL, "");
269 SYSCTL_ADD_PROC(&ue->ue_sysctl_ctx,
270 SYSCTL_CHILDREN(ue->ue_sysctl_oid), OID_AUTO, "%parent",
271 CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, ue, 0,
272 ue_sysctl_parent, "A", "parent device");
273
274 UE_LOCK(ue);
275 return;
276
277 fail:
278 CURVNET_RESTORE();
279
280 /* drain mbuf queue */
281 mbufq_drain(&ue->ue_rxq);
282
283 /* free unit */
284 free_unr(ueunit, ue->ue_unit);
285 if (ue->ue_ifp != NULL) {
286 if_free(ue->ue_ifp);
287 ue->ue_ifp = NULL;
288 }
289 UE_LOCK(ue);
290 return;
291 }
292
293 void
uether_ifdetach(struct usb_ether * ue)294 uether_ifdetach(struct usb_ether *ue)
295 {
296 struct ifnet *ifp;
297
298 /* wait for any post attach or other command to complete */
299 usb_proc_drain(&ue->ue_tq);
300
301 /* read "ifnet" pointer after taskqueue drain */
302 ifp = ue->ue_ifp;
303
304 if (ifp != NULL) {
305 /* we are not running any more */
306 UE_LOCK(ue);
307 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
308 UE_UNLOCK(ue);
309
310 /* drain any callouts */
311 usb_callout_drain(&ue->ue_watchdog);
312
313 /*
314 * Detach ethernet first to stop miibus calls from
315 * user-space:
316 */
317 ether_ifdetach(ifp);
318
319 /* detach miibus */
320 if (ue->ue_miibus != NULL) {
321 bus_topo_lock();
322 device_delete_child(ue->ue_dev, ue->ue_miibus);
323 bus_topo_unlock();
324 }
325
326 /* free interface instance */
327 if_free(ifp);
328
329 /* free sysctl */
330 sysctl_ctx_free(&ue->ue_sysctl_ctx);
331
332 /* drain mbuf queue */
333 mbufq_drain(&ue->ue_rxq);
334
335 /* free unit */
336 free_unr(ueunit, ue->ue_unit);
337 }
338
339 /* free taskqueue, if any */
340 usb_proc_free(&ue->ue_tq);
341 }
342
343 uint8_t
uether_is_gone(struct usb_ether * ue)344 uether_is_gone(struct usb_ether *ue)
345 {
346 return (usb_proc_is_gone(&ue->ue_tq));
347 }
348
349 void
uether_init(void * arg)350 uether_init(void *arg)
351 {
352
353 ue_init(arg);
354 }
355
356 static void
ue_init(void * arg)357 ue_init(void *arg)
358 {
359 struct usb_ether *ue = arg;
360
361 UE_LOCK(ue);
362 ue_queue_command(ue, ue_start_task,
363 &ue->ue_sync_task[0].hdr,
364 &ue->ue_sync_task[1].hdr);
365 UE_UNLOCK(ue);
366 }
367
368 static void
ue_start_task(struct usb_proc_msg * _task)369 ue_start_task(struct usb_proc_msg *_task)
370 {
371 struct usb_ether_cfg_task *task =
372 (struct usb_ether_cfg_task *)_task;
373 struct usb_ether *ue = task->ue;
374 struct ifnet *ifp = ue->ue_ifp;
375
376 UE_LOCK_ASSERT(ue, MA_OWNED);
377
378 ue->ue_methods->ue_init(ue);
379
380 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
381 return;
382
383 if (ue->ue_methods->ue_tick != NULL)
384 usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue);
385 }
386
387 static void
ue_stop_task(struct usb_proc_msg * _task)388 ue_stop_task(struct usb_proc_msg *_task)
389 {
390 struct usb_ether_cfg_task *task =
391 (struct usb_ether_cfg_task *)_task;
392 struct usb_ether *ue = task->ue;
393
394 UE_LOCK_ASSERT(ue, MA_OWNED);
395
396 usb_callout_stop(&ue->ue_watchdog);
397
398 ue->ue_methods->ue_stop(ue);
399 }
400
401 void
uether_start(struct ifnet * ifp)402 uether_start(struct ifnet *ifp)
403 {
404
405 ue_start(ifp);
406 }
407
408 static void
ue_start(struct ifnet * ifp)409 ue_start(struct ifnet *ifp)
410 {
411 struct usb_ether *ue = ifp->if_softc;
412
413 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
414 return;
415
416 UE_LOCK(ue);
417 ue->ue_methods->ue_start(ue);
418 UE_UNLOCK(ue);
419 }
420
421 static void
ue_promisc_task(struct usb_proc_msg * _task)422 ue_promisc_task(struct usb_proc_msg *_task)
423 {
424 struct usb_ether_cfg_task *task =
425 (struct usb_ether_cfg_task *)_task;
426 struct usb_ether *ue = task->ue;
427
428 ue->ue_methods->ue_setpromisc(ue);
429 }
430
431 static void
ue_setmulti_task(struct usb_proc_msg * _task)432 ue_setmulti_task(struct usb_proc_msg *_task)
433 {
434 struct usb_ether_cfg_task *task =
435 (struct usb_ether_cfg_task *)_task;
436 struct usb_ether *ue = task->ue;
437
438 ue->ue_methods->ue_setmulti(ue);
439 }
440
441 int
uether_ifmedia_upd(struct ifnet * ifp)442 uether_ifmedia_upd(struct ifnet *ifp)
443 {
444
445 return (ue_ifmedia_upd(ifp));
446 }
447
448 static int
ue_ifmedia_upd(struct ifnet * ifp)449 ue_ifmedia_upd(struct ifnet *ifp)
450 {
451 struct usb_ether *ue = ifp->if_softc;
452
453 /* Defer to process context */
454 UE_LOCK(ue);
455 ue_queue_command(ue, ue_ifmedia_task,
456 &ue->ue_media_task[0].hdr,
457 &ue->ue_media_task[1].hdr);
458 UE_UNLOCK(ue);
459
460 return (0);
461 }
462
463 static void
ue_ifmedia_task(struct usb_proc_msg * _task)464 ue_ifmedia_task(struct usb_proc_msg *_task)
465 {
466 struct usb_ether_cfg_task *task =
467 (struct usb_ether_cfg_task *)_task;
468 struct usb_ether *ue = task->ue;
469 struct ifnet *ifp = ue->ue_ifp;
470
471 ue->ue_methods->ue_mii_upd(ifp);
472 }
473
474 static void
ue_watchdog(void * arg)475 ue_watchdog(void *arg)
476 {
477 struct usb_ether *ue = arg;
478 struct ifnet *ifp = ue->ue_ifp;
479
480 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
481 return;
482
483 ue_queue_command(ue, ue_tick_task,
484 &ue->ue_tick_task[0].hdr,
485 &ue->ue_tick_task[1].hdr);
486
487 usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue);
488 }
489
490 static void
ue_tick_task(struct usb_proc_msg * _task)491 ue_tick_task(struct usb_proc_msg *_task)
492 {
493 struct usb_ether_cfg_task *task =
494 (struct usb_ether_cfg_task *)_task;
495 struct usb_ether *ue = task->ue;
496 struct ifnet *ifp = ue->ue_ifp;
497
498 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
499 return;
500
501 ue->ue_methods->ue_tick(ue);
502 }
503
504 int
uether_ioctl(struct ifnet * ifp,u_long command,caddr_t data)505 uether_ioctl(struct ifnet *ifp, u_long command, caddr_t data)
506 {
507 struct usb_ether *ue = ifp->if_softc;
508 struct ifreq *ifr = (struct ifreq *)data;
509 struct mii_data *mii;
510 int error = 0;
511
512 switch (command) {
513 case SIOCSIFFLAGS:
514 UE_LOCK(ue);
515 if (ifp->if_flags & IFF_UP) {
516 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
517 ue_queue_command(ue, ue_promisc_task,
518 &ue->ue_promisc_task[0].hdr,
519 &ue->ue_promisc_task[1].hdr);
520 else
521 ue_queue_command(ue, ue_start_task,
522 &ue->ue_sync_task[0].hdr,
523 &ue->ue_sync_task[1].hdr);
524 } else {
525 ue_queue_command(ue, ue_stop_task,
526 &ue->ue_sync_task[0].hdr,
527 &ue->ue_sync_task[1].hdr);
528 }
529 UE_UNLOCK(ue);
530 break;
531 case SIOCADDMULTI:
532 case SIOCDELMULTI:
533 UE_LOCK(ue);
534 ue_queue_command(ue, ue_setmulti_task,
535 &ue->ue_multi_task[0].hdr,
536 &ue->ue_multi_task[1].hdr);
537 UE_UNLOCK(ue);
538 break;
539 case SIOCGIFMEDIA:
540 case SIOCSIFMEDIA:
541 if (ue->ue_miibus != NULL) {
542 mii = device_get_softc(ue->ue_miibus);
543 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
544 } else
545 error = ether_ioctl(ifp, command, data);
546 break;
547 default:
548 error = ether_ioctl(ifp, command, data);
549 break;
550 }
551 return (error);
552 }
553
554 static int
uether_modevent(module_t mod,int type,void * data)555 uether_modevent(module_t mod, int type, void *data)
556 {
557
558 switch (type) {
559 case MOD_LOAD:
560 ueunit = new_unrhdr(0, INT_MAX, NULL);
561 break;
562 case MOD_UNLOAD:
563 break;
564 default:
565 return (EOPNOTSUPP);
566 }
567 return (0);
568 }
569 static moduledata_t uether_mod = {
570 "uether",
571 uether_modevent,
572 0
573 };
574
575 struct mbuf *
uether_newbuf(void)576 uether_newbuf(void)
577 {
578 struct mbuf *m_new;
579
580 m_new = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR);
581 if (m_new == NULL)
582 return (NULL);
583 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
584
585 m_adj(m_new, ETHER_ALIGN);
586 return (m_new);
587 }
588
589 int
uether_rxmbuf(struct usb_ether * ue,struct mbuf * m,unsigned int len)590 uether_rxmbuf(struct usb_ether *ue, struct mbuf *m,
591 unsigned int len)
592 {
593 struct ifnet *ifp = ue->ue_ifp;
594
595 UE_LOCK_ASSERT(ue, MA_OWNED);
596
597 /* finalize mbuf */
598 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
599 m->m_pkthdr.rcvif = ifp;
600 m->m_pkthdr.len = m->m_len = len;
601
602 /* enqueue for later when the lock can be released */
603 (void)mbufq_enqueue(&ue->ue_rxq, m);
604 return (0);
605 }
606
607 int
uether_rxbuf(struct usb_ether * ue,struct usb_page_cache * pc,unsigned int offset,unsigned int len)608 uether_rxbuf(struct usb_ether *ue, struct usb_page_cache *pc,
609 unsigned int offset, unsigned int len)
610 {
611 struct ifnet *ifp = ue->ue_ifp;
612 struct mbuf *m;
613
614 UE_LOCK_ASSERT(ue, MA_OWNED);
615
616 if (len < ETHER_HDR_LEN || len > MCLBYTES - ETHER_ALIGN)
617 return (1);
618
619 m = uether_newbuf();
620 if (m == NULL) {
621 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
622 return (ENOMEM);
623 }
624
625 usbd_copy_out(pc, offset, mtod(m, uint8_t *), len);
626
627 /* finalize mbuf */
628 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
629 m->m_pkthdr.rcvif = ifp;
630 m->m_pkthdr.len = m->m_len = len;
631
632 /* enqueue for later when the lock can be released */
633 (void)mbufq_enqueue(&ue->ue_rxq, m);
634 return (0);
635 }
636
637 void
uether_rxflush(struct usb_ether * ue)638 uether_rxflush(struct usb_ether *ue)
639 {
640 struct ifnet *ifp = ue->ue_ifp;
641 struct epoch_tracker et;
642 struct mbuf *m, *n;
643
644 UE_LOCK_ASSERT(ue, MA_OWNED);
645
646 n = mbufq_flush(&ue->ue_rxq);
647 UE_UNLOCK(ue);
648 NET_EPOCH_ENTER(et);
649 while ((m = n) != NULL) {
650 n = STAILQ_NEXT(m, m_stailqpkt);
651 m->m_nextpkt = NULL;
652 ifp->if_input(ifp, m);
653 }
654 NET_EPOCH_EXIT(et);
655 UE_LOCK(ue);
656 }
657
658 /*
659 * USB net drivers are run by DRIVER_MODULE() thus SI_SUB_DRIVERS,
660 * SI_ORDER_MIDDLE. Run uether after that.
661 */
662 DECLARE_MODULE(uether, uether_mod, SI_SUB_DRIVERS, SI_ORDER_ANY);
663 MODULE_VERSION(uether, 1);
664