Change to use USB_PRODUCT_LINKSYS2_USB200M.
[dragonfly.git] / sys / dev / netif / axe / if_axe.c
CommitLineData
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1/*
2 * Copyright (c) 1997, 1998, 1999, 2000-2003
3 * Bill Paul <wpaul@windriver.com>. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Bill Paul.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
31 *
32 * $FreeBSD: src/sys/dev/usb/if_axe.c,v 1.10 2003/12/08 07:54:14 obrien Exp $
9ec9af3f 33 * $DragonFly: src/sys/dev/netif/axe/if_axe.c,v 1.7 2004/09/27 05:57:58 asmodai Exp $
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34 */
35/*
36 * ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
37 * LinkSys USB200M and various other adapters.
38 *
39 * Manuals available from:
40 * http://www.asix.com.tw/datasheet/mac/Ax88172.PDF
41 * Note: you need the manual for the AX88170 chip (USB 1.x ethernet
42 * controller) to find the definitions for the RX control register.
43 * http://www.asix.com.tw/datasheet/mac/Ax88170.PDF
44 *
45 * Written by Bill Paul <wpaul@windriver.com>
46 * Senior Engineer
47 * Wind River Systems
48 */
49
50/*
51 * The AX88172 provides USB ethernet supports at 10 and 100Mbps.
52 * It uses an external PHY (reference designs use a RealTek chip),
53 * and has a 64-bit multicast hash filter. There is some information
54 * missing from the manual which one needs to know in order to make
55 * the chip function:
56 *
57 * - You must set bit 7 in the RX control register, otherwise the
58 * chip won't receive any packets.
59 * - You must initialize all 3 IPG registers, or you won't be able
60 * to send any packets.
61 *
62 * Note that this device appears to only support loading the station
63 * address via autload from the EEPROM (i.e. there's no way to manaully
64 * set it).
65 *
66 * (Adam Weinberger wanted me to name this driver if_gir.c.)
67 */
68
69#include <sys/param.h>
70#include <sys/systm.h>
71#include <sys/sockio.h>
72#include <sys/mbuf.h>
73#include <sys/malloc.h>
74#include <sys/kernel.h>
75#include <sys/socket.h>
76
77#include <net/if.h>
78#include <net/if_arp.h>
79#include <net/ethernet.h>
80#include <net/if_dl.h>
81#include <net/if_media.h>
82
83#include <net/bpf.h>
84
85#include <sys/bus.h>
86#include <machine/bus.h>
87
88#include <bus/usb/usb.h>
89#include <bus/usb/usbdi.h>
90#include <bus/usb/usbdi_util.h>
91#include <bus/usb/usbdivar.h>
92#include <bus/usb/usbdevs.h>
93#include <bus/usb/usb_ethersubr.h>
94
95#include "../mii_layer//mii.h"
96#include "../mii_layer/miivar.h"
97
98/* "controller miibus0" required. See GENERIC if you get errors here. */
99#include "miibus_if.h"
100
101#include "if_axereg.h"
102
103/*
104 * Various supported device vendors/products.
105 */
106Static struct axe_type axe_devs[] = {
107 { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88172 },
108 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUBE100 },
9ec9af3f 109 { USB_VENDOR_LINKSYS2, USB_PRODUCT_LINKSYS2_USB200M },
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110 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_FA120 },
111 { 0, 0 }
112};
113
114Static struct usb_qdat axe_qdat;
115
116Static int axe_match(device_ptr_t);
117Static int axe_attach(device_ptr_t);
118Static int axe_detach(device_ptr_t);
119
120Static int axe_tx_list_init(struct axe_softc *);
121Static int axe_rx_list_init(struct axe_softc *);
122Static int axe_newbuf(struct axe_softc *, struct axe_chain *, struct mbuf *);
123Static int axe_encap(struct axe_softc *, struct mbuf *, int);
124Static void axe_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
125Static void axe_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
126Static void axe_tick(void *);
127Static void axe_rxstart(struct ifnet *);
128Static void axe_start(struct ifnet *);
730f2253 129Static int axe_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
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130Static void axe_init(void *);
131Static void axe_stop(struct axe_softc *);
132Static void axe_watchdog(struct ifnet *);
133Static void axe_shutdown(device_ptr_t);
134Static int axe_miibus_readreg(device_ptr_t, int, int);
135Static int axe_miibus_writereg(device_ptr_t, int, int, int);
136Static void axe_miibus_statchg(device_ptr_t);
137Static int axe_cmd(struct axe_softc *, int, int, int, void *);
138Static int axe_ifmedia_upd(struct ifnet *);
139Static void axe_ifmedia_sts(struct ifnet *, struct ifmediareq *);
140
141Static void axe_setmulti(struct axe_softc *);
142Static uint32_t axe_mchash(const uint8_t *);
143
144Static device_method_t axe_methods[] = {
145 /* Device interface */
146 DEVMETHOD(device_probe, axe_match),
147 DEVMETHOD(device_attach, axe_attach),
148 DEVMETHOD(device_detach, axe_detach),
149 DEVMETHOD(device_shutdown, axe_shutdown),
150
151 /* bus interface */
152 DEVMETHOD(bus_print_child, bus_generic_print_child),
153 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
154
155 /* MII interface */
156 DEVMETHOD(miibus_readreg, axe_miibus_readreg),
157 DEVMETHOD(miibus_writereg, axe_miibus_writereg),
158 DEVMETHOD(miibus_statchg, axe_miibus_statchg),
159
160 { 0, 0 }
161};
162
163Static driver_t axe_driver = {
164 "axe",
165 axe_methods,
166 sizeof(struct axe_softc)
167};
168
169Static devclass_t axe_devclass;
170
171DRIVER_MODULE(axe, uhub, axe_driver, axe_devclass, usbd_driver_load, 0);
172DRIVER_MODULE(miibus, axe, miibus_driver, miibus_devclass, 0, 0);
173MODULE_DEPEND(axe, usb, 1, 1, 1);
174MODULE_DEPEND(axe, miibus, 1, 1, 1);
175
176Static int
177axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf)
178{
179 usb_device_request_t req;
180 usbd_status err;
181
182 if (sc->axe_dying)
183 return(0);
184
185 if (AXE_CMD_DIR(cmd))
186 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
187 else
188 req.bmRequestType = UT_READ_VENDOR_DEVICE;
189 req.bRequest = AXE_CMD_CMD(cmd);
190 USETW(req.wValue, val);
191 USETW(req.wIndex, index);
192 USETW(req.wLength, AXE_CMD_LEN(cmd));
193
194 err = usbd_do_request(sc->axe_udev, &req, buf);
195
196 if (err)
197 return(-1);
198
199 return(0);
200}
201
202Static int
203axe_miibus_readreg(device_ptr_t dev, int phy, int reg)
204{
205 struct axe_softc *sc = USBGETSOFTC(dev);
206 usbd_status err;
207 u_int16_t val;
730f2253 208 int s;
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209
210 if (sc->axe_dying)
211 return(0);
212
213#ifdef notdef
214 /*
215 * The chip tells us the MII address of any supported
216 * PHYs attached to the chip, so only read from those.
217 */
218
219 if (sc->axe_phyaddrs[0] != AXE_NOPHY && phy != sc->axe_phyaddrs[0])
220 return (0);
221
222 if (sc->axe_phyaddrs[1] != AXE_NOPHY && phy != sc->axe_phyaddrs[1])
223 return (0);
224#endif
225 if (sc->axe_phyaddrs[0] != 0xFF && sc->axe_phyaddrs[0] != phy)
226 return (0);
227
730f2253 228 s = splimp();
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229 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL);
230 err = axe_cmd(sc, AXE_CMD_MII_READ_REG, reg, phy, (void *)&val);
231 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL);
730f2253 232 splx(s);
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233
234 if (err) {
235 printf("axe%d: read PHY failed\n", sc->axe_unit);
236 return(-1);
237 }
238
239 if (val)
240 sc->axe_phyaddrs[0] = phy;
241
242 return (val);
243}
244
245Static int
246axe_miibus_writereg(device_ptr_t dev, int phy, int reg, int val)
247{
248 struct axe_softc *sc = USBGETSOFTC(dev);
249 usbd_status err;
730f2253 250 int s;
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251
252 if (sc->axe_dying)
253 return(0);
254
730f2253 255 s = splimp();
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256 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL);
257 err = axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, (void *)&val);
258 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL);
730f2253 259 splx(s);
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260
261 if (err) {
262 printf("axe%d: write PHY failed\n", sc->axe_unit);
263 return(-1);
264 }
265
266 return (0);
267}
268
269Static void
270axe_miibus_statchg(device_ptr_t dev)
271{
272#ifdef notdef
273 struct axe_softc *sc = USBGETSOFTC(dev);
274 struct mii_data *mii = GET_MII(sc);
275#endif
276 /* doesn't seem to be necessary */
277
278 return;
279}
280
281/*
282 * Set media options.
283 */
284Static int
285axe_ifmedia_upd(struct ifnet *ifp)
286{
287 struct axe_softc *sc = ifp->if_softc;
288 struct mii_data *mii = GET_MII(sc);
289
290 sc->axe_link = 0;
291 if (mii->mii_instance) {
292 struct mii_softc *miisc;
293 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
294 mii_phy_reset(miisc);
295 }
296 mii_mediachg(mii);
297
298 return (0);
299}
300
301/*
302 * Report current media status.
303 */
304Static void
305axe_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
306{
307 struct axe_softc *sc = ifp->if_softc;
308 struct mii_data *mii = GET_MII(sc);
309
310 mii_pollstat(mii);
311 ifmr->ifm_active = mii->mii_media_active;
312 ifmr->ifm_status = mii->mii_media_status;
313
314 return;
315}
316
317Static uint32_t
318axe_mchash(const uint8_t *addr)
319{
320 uint32_t crc, carry;
321 int idx, bit;
322 uint8_t data;
323
324 /* Compute CRC for the address value. */
325 crc = 0xFFFFFFFF; /* initial value */
326
327 for (idx = 0; idx < 6; idx++) {
328 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) {
329 carry = ((crc & 0x80000000) ? 1 : 0) ^ (data & 0x01);
330 crc <<= 1;
331 if (carry)
332 crc = (crc ^ 0x04c11db6) | carry;
333 }
334 }
335
336 /* return the filter bit position */
337 return((crc >> 26) & 0x0000003F);
338}
339
340Static void
341axe_setmulti(struct axe_softc *sc)
342{
343 struct ifnet *ifp;
344 struct ifmultiaddr *ifma;
345 u_int32_t h = 0;
346 u_int16_t rxmode;
347 u_int8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
730f2253 348 int s;
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349
350 ifp = &sc->arpcom.ac_if;
351
730f2253 352 s = splimp();
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353 axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, (void *)&rxmode);
354
355 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
356 rxmode |= AXE_RXCMD_ALLMULTI;
357 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
730f2253 358 splx(s);
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359 return;
360 } else
361 rxmode &= ~AXE_RXCMD_ALLMULTI;
362
730f2253 363 LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
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364 if (ifma->ifma_addr->sa_family != AF_LINK)
365 continue;
366 h = axe_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
367 hashtbl[h / 8] |= 1 << (h % 8);
368 }
369
370 axe_cmd(sc, AXE_CMD_WRITE_MCAST, 0, 0, (void *)&hashtbl);
371 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
1550dfd9 372
730f2253 373 splx(s);
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374}
375
376Static void
377axe_reset(struct axe_softc *sc)
378{
379 if (sc->axe_dying)
380 return;
381
382 if (usbd_set_config_no(sc->axe_udev, AXE_CONFIG_NO, 1) ||
383 usbd_device2interface_handle(sc->axe_udev, AXE_IFACE_IDX,
384 &sc->axe_iface)) {
385 printf("axe%d: getting interface handle failed\n",
386 sc->axe_unit);
387 }
388
389 /* Wait a little while for the chip to get its brains in order. */
390 DELAY(1000);
391 return;
392}
393
394/*
395 * Probe for a AX88172 chip.
396 */
397USB_MATCH(axe)
398{
399 USB_MATCH_START(axe, uaa);
400 struct axe_type *t;
401
402 if (!uaa->iface)
403 return(UMATCH_NONE);
404
405 t = axe_devs;
406 while(t->axe_vid) {
407 if (uaa->vendor == t->axe_vid &&
408 uaa->product == t->axe_did) {
409 return(UMATCH_VENDOR_PRODUCT);
410 }
411 t++;
412 }
413
414 return(UMATCH_NONE);
415}
416
417/*
418 * Attach the interface. Allocate softc structures, do ifmedia
419 * setup and ethernet/BPF attach.
420 */
421USB_ATTACH(axe)
422{
423 USB_ATTACH_START(axe, sc, uaa);
424 char devinfo[1024];
425 u_char eaddr[ETHER_ADDR_LEN];
426 struct ifnet *ifp;
427 usb_interface_descriptor_t *id;
428 usb_endpoint_descriptor_t *ed;
429 int i;
430
431 bzero(sc, sizeof(struct axe_softc));
432 sc->axe_udev = uaa->device;
433 sc->axe_dev = self;
434 sc->axe_unit = device_get_unit(self);
730f2253 435 callout_init(&sc->axe_stat_timer);
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436
437 if (usbd_set_config_no(sc->axe_udev, AXE_CONFIG_NO, 1)) {
438 printf("axe%d: getting interface handle failed\n",
439 sc->axe_unit);
440 USB_ATTACH_ERROR_RETURN;
441 }
442
443 if (usbd_device2interface_handle(uaa->device,
444 AXE_IFACE_IDX, &sc->axe_iface)) {
445 printf("axe%d: getting interface handle failed\n",
446 sc->axe_unit);
447 USB_ATTACH_ERROR_RETURN;
448 }
449
450 id = usbd_get_interface_descriptor(sc->axe_iface);
451
452 usbd_devinfo(uaa->device, 0, devinfo);
453 device_set_desc_copy(self, devinfo);
454 printf("%s: %s\n", USBDEVNAME(self), devinfo);
455
456 /* Find endpoints. */
457 for (i = 0; i < id->bNumEndpoints; i++) {
458 ed = usbd_interface2endpoint_descriptor(sc->axe_iface, i);
459 if (!ed) {
460 printf("axe%d: couldn't get ep %d\n",
461 sc->axe_unit, i);
462 USB_ATTACH_ERROR_RETURN;
463 }
464 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
465 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
466 sc->axe_ed[AXE_ENDPT_RX] = ed->bEndpointAddress;
467 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
468 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
469 sc->axe_ed[AXE_ENDPT_TX] = ed->bEndpointAddress;
470 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
471 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
472 sc->axe_ed[AXE_ENDPT_INTR] = ed->bEndpointAddress;
473 }
474 }
475
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476 /*
477 * Get station address.
478 */
479 axe_cmd(sc, AXE_CMD_READ_NODEID, 0, 0, &eaddr);
480
481 /*
482 * Load IPG values and PHY indexes.
483 */
484 axe_cmd(sc, AXE_CMD_READ_IPG012, 0, 0, (void *)&sc->axe_ipgs);
485 axe_cmd(sc, AXE_CMD_READ_PHYID, 0, 0, (void *)&sc->axe_phyaddrs);
486
487 /*
488 * Work around broken adapters that appear to lie about
489 * their PHY addresses.
490 */
491 sc->axe_phyaddrs[0] = sc->axe_phyaddrs[1] = 0xFF;
492
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493 ifp = &sc->arpcom.ac_if;
494 ifp->if_softc = sc;
495 if_initname(ifp, "axe", sc->axe_unit);
496 ifp->if_mtu = ETHERMTU;
497 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
498 ifp->if_ioctl = axe_ioctl;
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499 ifp->if_start = axe_start;
500 ifp->if_watchdog = axe_watchdog;
501 ifp->if_init = axe_init;
502 ifp->if_baudrate = 10000000;
503 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;
504
505 axe_qdat.ifp = ifp;
506 axe_qdat.if_rxstart = axe_rxstart;
507
508 if (mii_phy_probe(self, &sc->axe_miibus,
509 axe_ifmedia_upd, axe_ifmedia_sts)) {
510 printf("axe%d: MII without any PHY!\n", sc->axe_unit);
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511 USB_ATTACH_ERROR_RETURN;
512 }
513
514 /*
515 * Call MI attach routine.
516 */
517
518 ether_ifattach(ifp, eaddr);
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519
520 sc->axe_dying = 0;
521
730f2253 522 usb_register_netisr();
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523
524 USB_ATTACH_SUCCESS_RETURN;
525}
526
527Static int
528axe_detach(device_ptr_t dev)
529{
530 struct axe_softc *sc;
531 struct ifnet *ifp;
730f2253 532 int s;
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533
534 sc = device_get_softc(dev);
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535 ifp = &sc->arpcom.ac_if;
536
730f2253 537 s = splimp();
1550dfd9 538 sc->axe_dying = 1;
730f2253 539 callout_stop(&sc->axe_stat_timer);
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540 ether_ifdetach(ifp);
541
542 if (sc->axe_ep[AXE_ENDPT_TX] != NULL)
543 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]);
544 if (sc->axe_ep[AXE_ENDPT_RX] != NULL)
545 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]);
546 if (sc->axe_ep[AXE_ENDPT_INTR] != NULL)
547 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
548
730f2253 549 splx(s);
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550
551 return(0);
552}
553
554/*
555 * Initialize an RX descriptor and attach an MBUF cluster.
556 */
557Static int
558axe_newbuf(struct axe_softc *sc, struct axe_chain *c, struct mbuf *m)
559{
560 struct mbuf *m_new = NULL;
561
562 if (m == NULL) {
74f1caca 563 m_new = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
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564 if (m_new == NULL) {
565 printf("axe%d: no memory for rx list "
566 "-- packet dropped!\n", sc->axe_unit);
567 return(ENOBUFS);
568 }
569 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
570 } else {
571 m_new = m;
572 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
573 m_new->m_data = m_new->m_ext.ext_buf;
574 }
575
576 m_adj(m_new, ETHER_ALIGN);
577 c->axe_mbuf = m_new;
578
579 return(0);
580}
581
582Static int
583axe_rx_list_init(struct axe_softc *sc)
584{
585 struct axe_cdata *cd;
586 struct axe_chain *c;
587 int i;
588
589 cd = &sc->axe_cdata;
590 for (i = 0; i < AXE_RX_LIST_CNT; i++) {
591 c = &cd->axe_rx_chain[i];
592 c->axe_sc = sc;
593 c->axe_idx = i;
594 if (axe_newbuf(sc, c, NULL) == ENOBUFS)
595 return(ENOBUFS);
596 if (c->axe_xfer == NULL) {
597 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev);
598 if (c->axe_xfer == NULL)
599 return(ENOBUFS);
600 }
601 }
602
603 return(0);
604}
605
606Static int
607axe_tx_list_init(struct axe_softc *sc)
608{
609 struct axe_cdata *cd;
610 struct axe_chain *c;
611 int i;
612
613 cd = &sc->axe_cdata;
614 for (i = 0; i < AXE_TX_LIST_CNT; i++) {
615 c = &cd->axe_tx_chain[i];
616 c->axe_sc = sc;
617 c->axe_idx = i;
618 c->axe_mbuf = NULL;
619 if (c->axe_xfer == NULL) {
620 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev);
621 if (c->axe_xfer == NULL)
622 return(ENOBUFS);
623 }
c5541aee 624 c->axe_buf = malloc(AXE_BUFSZ, M_USBDEV, M_WAITOK);
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625 if (c->axe_buf == NULL)
626 return(ENOBUFS);
627 }
628
629 return(0);
630}
631
632Static void
633axe_rxstart(struct ifnet *ifp)
634{
635 struct axe_softc *sc;
636 struct axe_chain *c;
730f2253 637 int s;
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638
639 sc = ifp->if_softc;
730f2253 640 s = splimp();
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641 c = &sc->axe_cdata.axe_rx_chain[sc->axe_cdata.axe_rx_prod];
642
643 if (axe_newbuf(sc, c, NULL) == ENOBUFS) {
644 ifp->if_ierrors++;
730f2253 645 splx(s);
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MD
646 return;
647 }
648
649 /* Setup new transfer. */
650 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX],
651 c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, USBD_SHORT_XFER_OK,
652 USBD_NO_TIMEOUT, axe_rxeof);
653 usbd_transfer(c->axe_xfer);
730f2253 654 splx(s);
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MD
655
656 return;
657}
658
659/*
660 * A frame has been uploaded: pass the resulting mbuf chain up to
661 * the higher level protocols.
662 */
663Static void
664axe_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
665{
666 struct axe_softc *sc;
667 struct axe_chain *c;
668 struct mbuf *m;
669 struct ifnet *ifp;
730f2253 670 int s, total_len = 0;
1550dfd9
MD
671
672 c = priv;
673 sc = c->axe_sc;
730f2253 674 s = splimp();
1550dfd9
MD
675 ifp = &sc->arpcom.ac_if;
676
677 if (!(ifp->if_flags & IFF_RUNNING)) {
730f2253 678 splx(s);
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MD
679 return;
680 }
681
682 if (status != USBD_NORMAL_COMPLETION) {
683 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
730f2253 684 splx(s);
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MD
685 return;
686 }
687 if (usbd_ratecheck(&sc->axe_rx_notice))
688 printf("axe%d: usb error on rx: %s\n", sc->axe_unit,
689 usbd_errstr(status));
690 if (status == USBD_STALLED)
691 usbd_clear_endpoint_stall(sc->axe_ep[AXE_ENDPT_RX]);
692 goto done;
693 }
694
695 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
696
697 m = c->axe_mbuf;
698
699 if (total_len < sizeof(struct ether_header)) {
700 ifp->if_ierrors++;
701 goto done;
702 }
703
704 ifp->if_ipackets++;
705 m->m_pkthdr.rcvif = (struct ifnet *)&axe_qdat;
706 m->m_pkthdr.len = m->m_len = total_len;
707
708 /* Put the packet on the special USB input queue. */
709 usb_ether_input(m);
730f2253 710 splx(s);
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MD
711
712 return;
713done:
714 /* Setup new transfer. */
715 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX],
716 c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, USBD_SHORT_XFER_OK,
717 USBD_NO_TIMEOUT, axe_rxeof);
718 usbd_transfer(c->axe_xfer);
730f2253 719 splx(s);
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MD
720
721 return;
722}
723
724/*
725 * A frame was downloaded to the chip. It's safe for us to clean up
726 * the list buffers.
727 */
728
729Static void
730axe_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
731{
732 struct axe_softc *sc;
733 struct axe_chain *c;
734 struct ifnet *ifp;
735 usbd_status err;
730f2253 736 int s;
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737
738 c = priv;
739 sc = c->axe_sc;
1550dfd9
MD
740 ifp = &sc->arpcom.ac_if;
741
730f2253
JS
742 s = splimp();
743
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MD
744 if (status != USBD_NORMAL_COMPLETION) {
745 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
730f2253 746 splx(s);
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MD
747 return;
748 }
749 printf("axe%d: usb error on tx: %s\n", sc->axe_unit,
750 usbd_errstr(status));
751 if (status == USBD_STALLED)
752 usbd_clear_endpoint_stall(sc->axe_ep[AXE_ENDPT_TX]);
730f2253 753 splx(s);
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MD
754 return;
755 }
756
757 ifp->if_timer = 0;
758 ifp->if_flags &= ~IFF_OACTIVE;
759 usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &err);
760
761 if (c->axe_mbuf != NULL) {
762 c->axe_mbuf->m_pkthdr.rcvif = ifp;
763 usb_tx_done(c->axe_mbuf);
764 c->axe_mbuf = NULL;
765 }
766
767 if (err)
768 ifp->if_oerrors++;
769 else
770 ifp->if_opackets++;
771
730f2253 772 splx(s);
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MD
773}
774
775Static void
776axe_tick(void *xsc)
777{
778 struct axe_softc *sc;
779 struct ifnet *ifp;
780 struct mii_data *mii;
730f2253 781 int s;
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782
783 sc = xsc;
784
785 if (sc == NULL)
786 return;
787
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MD
788 ifp = &sc->arpcom.ac_if;
789 mii = GET_MII(sc);
730f2253 790 if (mii == NULL)
1550dfd9 791 return;
730f2253
JS
792
793 s = splimp();
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MD
794
795 mii_tick(mii);
796 if (!sc->axe_link && mii->mii_media_status & IFM_ACTIVE &&
797 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
798 sc->axe_link++;
799 if (ifp->if_snd.ifq_head != NULL)
800 axe_start(ifp);
801 }
802
730f2253 803 callout_reset(&sc->axe_stat_timer, hz, axe_tick, sc);
1550dfd9 804
730f2253 805 splx(s);
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MD
806}
807
808Static int
809axe_encap(struct axe_softc *sc, struct mbuf *m, int idx)
810{
811 struct axe_chain *c;
812 usbd_status err;
813
814 c = &sc->axe_cdata.axe_tx_chain[idx];
815
816 /*
817 * Copy the mbuf data into a contiguous buffer, leaving two
818 * bytes at the beginning to hold the frame length.
819 */
820 m_copydata(m, 0, m->m_pkthdr.len, c->axe_buf);
821 c->axe_mbuf = m;
822
823 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_TX],
824 c, c->axe_buf, m->m_pkthdr.len, 0, 10000, axe_txeof);
825
826 /* Transmit */
827 err = usbd_transfer(c->axe_xfer);
828 if (err != USBD_IN_PROGRESS) {
829 axe_stop(sc);
830 return(EIO);
831 }
832
833 sc->axe_cdata.axe_tx_cnt++;
834
835 return(0);
836}
837
838Static void
839axe_start(struct ifnet *ifp)
840{
841 struct axe_softc *sc;
842 struct mbuf *m_head = NULL;
730f2253 843 int s;
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MD
844
845 sc = ifp->if_softc;
730f2253 846 s = splimp();
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847
848 if (!sc->axe_link) {
730f2253 849 splx(s);
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MD
850 return;
851 }
852
853 if (ifp->if_flags & IFF_OACTIVE) {
730f2253 854 splx(s);
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MD
855 return;
856 }
857
858 IF_DEQUEUE(&ifp->if_snd, m_head);
859 if (m_head == NULL) {
730f2253 860 splx(s);
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861 return;
862 }
863
864 if (axe_encap(sc, m_head, 0)) {
865 IF_PREPEND(&ifp->if_snd, m_head);
866 ifp->if_flags |= IFF_OACTIVE;
730f2253 867 splx(s);
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MD
868 return;
869 }
870
871 /*
872 * If there's a BPF listener, bounce a copy of this frame
873 * to him.
874 */
875 BPF_MTAP(ifp, m_head);
876
877 ifp->if_flags |= IFF_OACTIVE;
878
879 /*
880 * Set a timeout in case the chip goes out to lunch.
881 */
882 ifp->if_timer = 5;
730f2253 883 splx(s);
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884}
885
886Static void
887axe_init(void *xsc)
888{
889 struct axe_softc *sc = xsc;
890 struct ifnet *ifp = &sc->arpcom.ac_if;
891 struct axe_chain *c;
892 usbd_status err;
730f2253 893 int i, rxmode, s;
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MD
894
895 if (ifp->if_flags & IFF_RUNNING)
896 return;
897
730f2253 898 s = splimp();
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MD
899
900 /*
901 * Cancel pending I/O and free all RX/TX buffers.
902 */
903
904 axe_reset(sc);
905
906#ifdef notdef
907 /* Set MAC address */
908 axe_mac(sc, sc->arpcom.ac_enaddr, 1);
909#endif
910
911 /* Enable RX logic. */
912
913 /* Init TX ring. */
914 if (axe_tx_list_init(sc) == ENOBUFS) {
915 printf("axe%d: tx list init failed\n", sc->axe_unit);
730f2253 916 splx(s);
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MD
917 return;
918 }
919
920 /* Init RX ring. */
921 if (axe_rx_list_init(sc) == ENOBUFS) {
922 printf("axe%d: rx list init failed\n", sc->axe_unit);
730f2253 923 splx(s);
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MD
924 return;
925 }
926
927 /* Set transmitter IPG values */
928 axe_cmd(sc, AXE_CMD_WRITE_IPG0, 0, sc->axe_ipgs[0], NULL);
929 axe_cmd(sc, AXE_CMD_WRITE_IPG1, 0, sc->axe_ipgs[1], NULL);
930 axe_cmd(sc, AXE_CMD_WRITE_IPG2, 0, sc->axe_ipgs[2], NULL);
931
932 /* Enable receiver, set RX mode */
933 rxmode = AXE_RXCMD_UNICAST|AXE_RXCMD_MULTICAST|AXE_RXCMD_ENABLE;
934
935 /* If we want promiscuous mode, set the allframes bit. */
936 if (ifp->if_flags & IFF_PROMISC)
937 rxmode |= AXE_RXCMD_PROMISC;
938
939 if (ifp->if_flags & IFF_BROADCAST)
940 rxmode |= AXE_RXCMD_BROADCAST;
941
942 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
943
944 /* Load the multicast filter. */
945 axe_setmulti(sc);
946
947 /* Open RX and TX pipes. */
948 err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_RX],
949 USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_RX]);
950 if (err) {
951 printf("axe%d: open rx pipe failed: %s\n",
952 sc->axe_unit, usbd_errstr(err));
730f2253 953 splx(s);
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MD
954 return;
955 }
956
957 err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_TX],
958 USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_TX]);
959 if (err) {
960 printf("axe%d: open tx pipe failed: %s\n",
961 sc->axe_unit, usbd_errstr(err));
730f2253 962 splx(s);
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MD
963 return;
964 }
965
966 /* Start up the receive pipe. */
967 for (i = 0; i < AXE_RX_LIST_CNT; i++) {
968 c = &sc->axe_cdata.axe_rx_chain[i];
969 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX],
970 c, mtod(c->axe_mbuf, char *), AXE_BUFSZ,
971 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, axe_rxeof);
972 usbd_transfer(c->axe_xfer);
973 }
974
975 ifp->if_flags |= IFF_RUNNING;
976 ifp->if_flags &= ~IFF_OACTIVE;
977
730f2253 978 splx(s);
1550dfd9 979
730f2253 980 callout_reset(&sc->axe_stat_timer, hz, axe_tick, sc);
1550dfd9
MD
981
982 return;
983}
984
985Static int
730f2253 986axe_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
1550dfd9
MD
987{
988 struct axe_softc *sc = ifp->if_softc;
989 struct ifreq *ifr = (struct ifreq *)data;
990 struct mii_data *mii;
991 u_int16_t rxmode;
730f2253
JS
992 int error = 0, s;
993
994 s = splimp();
1550dfd9
MD
995
996 switch(command) {
997 case SIOCSIFFLAGS:
998 if (ifp->if_flags & IFF_UP) {
999 if (ifp->if_flags & IFF_RUNNING &&
1000 ifp->if_flags & IFF_PROMISC &&
1001 !(sc->axe_if_flags & IFF_PROMISC)) {
1550dfd9
MD
1002 axe_cmd(sc, AXE_CMD_RXCTL_READ,
1003 0, 0, (void *)&rxmode);
1004 rxmode |= AXE_RXCMD_PROMISC;
1005 axe_cmd(sc, AXE_CMD_RXCTL_WRITE,
1006 0, rxmode, NULL);
1550dfd9
MD
1007 axe_setmulti(sc);
1008 } else if (ifp->if_flags & IFF_RUNNING &&
1009 !(ifp->if_flags & IFF_PROMISC) &&
1010 sc->axe_if_flags & IFF_PROMISC) {
1550dfd9
MD
1011 axe_cmd(sc, AXE_CMD_RXCTL_READ,
1012 0, 0, (void *)&rxmode);
1013 rxmode &= ~AXE_RXCMD_PROMISC;
1014 axe_cmd(sc, AXE_CMD_RXCTL_WRITE,
1015 0, rxmode, NULL);
1550dfd9
MD
1016 axe_setmulti(sc);
1017 } else if (!(ifp->if_flags & IFF_RUNNING))
1018 axe_init(sc);
1019 } else {
1020 if (ifp->if_flags & IFF_RUNNING)
1021 axe_stop(sc);
1022 }
1023 sc->axe_if_flags = ifp->if_flags;
1024 error = 0;
1025 break;
1026 case SIOCADDMULTI:
1027 case SIOCDELMULTI:
1028 axe_setmulti(sc);
1029 error = 0;
1030 break;
1031 case SIOCGIFMEDIA:
1032 case SIOCSIFMEDIA:
1033 mii = GET_MII(sc);
1034 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
1035 break;
1036
1037 default:
1038 error = ether_ioctl(ifp, command, data);
1039 break;
1040 }
1041
730f2253 1042 splx(s);
1550dfd9
MD
1043
1044 return(error);
1045}
1046
1047Static void
1048axe_watchdog(struct ifnet *ifp)
1049{
1050 struct axe_softc *sc;
1051 struct axe_chain *c;
1052 usbd_status stat;
730f2253 1053 int s;
1550dfd9
MD
1054
1055 sc = ifp->if_softc;
730f2253 1056 s = splimp();
1550dfd9
MD
1057
1058 ifp->if_oerrors++;
1059 printf("axe%d: watchdog timeout\n", sc->axe_unit);
1060
1061 c = &sc->axe_cdata.axe_tx_chain[0];
1062 usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &stat);
1063 axe_txeof(c->axe_xfer, c, stat);
1064
1550dfd9
MD
1065 if (ifp->if_snd.ifq_head != NULL)
1066 axe_start(ifp);
1067
730f2253 1068 splx(s);
1550dfd9
MD
1069}
1070
1071/*
1072 * Stop the adapter and free any mbufs allocated to the
1073 * RX and TX lists.
1074 */
1075Static void
1076axe_stop(struct axe_softc *sc)
1077{
1078 usbd_status err;
1079 struct ifnet *ifp;
730f2253 1080 int i, s;
1550dfd9 1081
730f2253 1082 s = splimp();
1550dfd9
MD
1083
1084 axe_reset(sc);
1085
1086 ifp = &sc->arpcom.ac_if;
1087 ifp->if_timer = 0;
1088
730f2253 1089 callout_stop(&sc->axe_stat_timer);
1550dfd9
MD
1090
1091 /* Stop transfers. */
1092 if (sc->axe_ep[AXE_ENDPT_RX] != NULL) {
1093 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]);
1094 if (err) {
1095 printf("axe%d: abort rx pipe failed: %s\n",
1096 sc->axe_unit, usbd_errstr(err));
1097 }
1098 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_RX]);
1099 if (err) {
1100 printf("axe%d: close rx pipe failed: %s\n",
1101 sc->axe_unit, usbd_errstr(err));
1102 }
1103 sc->axe_ep[AXE_ENDPT_RX] = NULL;
1104 }
1105
1106 if (sc->axe_ep[AXE_ENDPT_TX] != NULL) {
1107 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]);
1108 if (err) {
1109 printf("axe%d: abort tx pipe failed: %s\n",
1110 sc->axe_unit, usbd_errstr(err));
1111 }
1112 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_TX]);
1113 if (err) {
1114 printf("axe%d: close tx pipe failed: %s\n",
1115 sc->axe_unit, usbd_errstr(err));
1116 }
1117 sc->axe_ep[AXE_ENDPT_TX] = NULL;
1118 }
1119
1120 if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) {
1121 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
1122 if (err) {
1123 printf("axe%d: abort intr pipe failed: %s\n",
1124 sc->axe_unit, usbd_errstr(err));
1125 }
1126 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
1127 if (err) {
1128 printf("axe%d: close intr pipe failed: %s\n",
1129 sc->axe_unit, usbd_errstr(err));
1130 }
1131 sc->axe_ep[AXE_ENDPT_INTR] = NULL;
1132 }
1133
1134 /* Free RX resources. */
1135 for (i = 0; i < AXE_RX_LIST_CNT; i++) {
1136 if (sc->axe_cdata.axe_rx_chain[i].axe_buf != NULL) {
1137 free(sc->axe_cdata.axe_rx_chain[i].axe_buf, M_USBDEV);
1138 sc->axe_cdata.axe_rx_chain[i].axe_buf = NULL;
1139 }
1140 if (sc->axe_cdata.axe_rx_chain[i].axe_mbuf != NULL) {
1141 m_freem(sc->axe_cdata.axe_rx_chain[i].axe_mbuf);
1142 sc->axe_cdata.axe_rx_chain[i].axe_mbuf = NULL;
1143 }
1144 if (sc->axe_cdata.axe_rx_chain[i].axe_xfer != NULL) {
1145 usbd_free_xfer(sc->axe_cdata.axe_rx_chain[i].axe_xfer);
1146 sc->axe_cdata.axe_rx_chain[i].axe_xfer = NULL;
1147 }
1148 }
1149
1150 /* Free TX resources. */
1151 for (i = 0; i < AXE_TX_LIST_CNT; i++) {
1152 if (sc->axe_cdata.axe_tx_chain[i].axe_buf != NULL) {
1153 free(sc->axe_cdata.axe_tx_chain[i].axe_buf, M_USBDEV);
1154 sc->axe_cdata.axe_tx_chain[i].axe_buf = NULL;
1155 }
1156 if (sc->axe_cdata.axe_tx_chain[i].axe_mbuf != NULL) {
1157 m_freem(sc->axe_cdata.axe_tx_chain[i].axe_mbuf);
1158 sc->axe_cdata.axe_tx_chain[i].axe_mbuf = NULL;
1159 }
1160 if (sc->axe_cdata.axe_tx_chain[i].axe_xfer != NULL) {
1161 usbd_free_xfer(sc->axe_cdata.axe_tx_chain[i].axe_xfer);
1162 sc->axe_cdata.axe_tx_chain[i].axe_xfer = NULL;
1163 }
1164 }
1165
1166 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
1167 sc->axe_link = 0;
730f2253 1168 splx(s);
1550dfd9
MD
1169}
1170
1171/*
1172 * Stop all chip I/O so that the kernel's probe routines don't
1173 * get confused by errant DMAs when rebooting.
1174 */
1175Static void
1176axe_shutdown(device_ptr_t dev)
1177{
1178 struct axe_softc *sc;
1179
1180 sc = device_get_softc(dev);
1181
1182 axe_stop(sc);
1550dfd9 1183}