Fix a bugaboo in the last commit. We can't move to a generic mux yet
[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 $
ca3f7aba 33 * $DragonFly: src/sys/dev/netif/axe/if_axe.c,v 1.9 2005/02/16 22:50:28 joerg 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>
50e6530b 78#include <net/ifq_var.h>
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79#include <net/if_arp.h>
80#include <net/ethernet.h>
81#include <net/if_dl.h>
82#include <net/if_media.h>
83
84#include <net/bpf.h>
85
86#include <sys/bus.h>
87#include <machine/bus.h>
88
89#include <bus/usb/usb.h>
90#include <bus/usb/usbdi.h>
91#include <bus/usb/usbdi_util.h>
92#include <bus/usb/usbdivar.h>
93#include <bus/usb/usbdevs.h>
94#include <bus/usb/usb_ethersubr.h>
95
96#include "../mii_layer//mii.h"
97#include "../mii_layer/miivar.h"
98
99/* "controller miibus0" required. See GENERIC if you get errors here. */
100#include "miibus_if.h"
101
102#include "if_axereg.h"
103
104/*
105 * Various supported device vendors/products.
106 */
107Static struct axe_type axe_devs[] = {
108 { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88172 },
109 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUBE100 },
9ec9af3f 110 { USB_VENDOR_LINKSYS2, USB_PRODUCT_LINKSYS2_USB200M },
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111 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_FA120 },
112 { 0, 0 }
113};
114
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115Static int axe_match(device_ptr_t);
116Static int axe_attach(device_ptr_t);
117Static int axe_detach(device_ptr_t);
118
119Static int axe_tx_list_init(struct axe_softc *);
120Static int axe_rx_list_init(struct axe_softc *);
121Static int axe_newbuf(struct axe_softc *, struct axe_chain *, struct mbuf *);
122Static int axe_encap(struct axe_softc *, struct mbuf *, int);
123Static void axe_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
124Static void axe_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status);
125Static void axe_tick(void *);
126Static void axe_rxstart(struct ifnet *);
127Static void axe_start(struct ifnet *);
730f2253 128Static int axe_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
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129Static void axe_init(void *);
130Static void axe_stop(struct axe_softc *);
131Static void axe_watchdog(struct ifnet *);
132Static void axe_shutdown(device_ptr_t);
133Static int axe_miibus_readreg(device_ptr_t, int, int);
134Static int axe_miibus_writereg(device_ptr_t, int, int, int);
135Static void axe_miibus_statchg(device_ptr_t);
136Static int axe_cmd(struct axe_softc *, int, int, int, void *);
137Static int axe_ifmedia_upd(struct ifnet *);
138Static void axe_ifmedia_sts(struct ifnet *, struct ifmediareq *);
139
140Static void axe_setmulti(struct axe_softc *);
141Static uint32_t axe_mchash(const uint8_t *);
142
143Static device_method_t axe_methods[] = {
144 /* Device interface */
145 DEVMETHOD(device_probe, axe_match),
146 DEVMETHOD(device_attach, axe_attach),
147 DEVMETHOD(device_detach, axe_detach),
148 DEVMETHOD(device_shutdown, axe_shutdown),
149
150 /* bus interface */
151 DEVMETHOD(bus_print_child, bus_generic_print_child),
152 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
153
154 /* MII interface */
155 DEVMETHOD(miibus_readreg, axe_miibus_readreg),
156 DEVMETHOD(miibus_writereg, axe_miibus_writereg),
157 DEVMETHOD(miibus_statchg, axe_miibus_statchg),
158
159 { 0, 0 }
160};
161
162Static driver_t axe_driver = {
163 "axe",
164 axe_methods,
165 sizeof(struct axe_softc)
166};
167
168Static devclass_t axe_devclass;
169
170DRIVER_MODULE(axe, uhub, axe_driver, axe_devclass, usbd_driver_load, 0);
171DRIVER_MODULE(miibus, axe, miibus_driver, miibus_devclass, 0, 0);
172MODULE_DEPEND(axe, usb, 1, 1, 1);
173MODULE_DEPEND(axe, miibus, 1, 1, 1);
174
175Static int
176axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf)
177{
178 usb_device_request_t req;
179 usbd_status err;
180
181 if (sc->axe_dying)
182 return(0);
183
184 if (AXE_CMD_DIR(cmd))
185 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
186 else
187 req.bmRequestType = UT_READ_VENDOR_DEVICE;
188 req.bRequest = AXE_CMD_CMD(cmd);
189 USETW(req.wValue, val);
190 USETW(req.wIndex, index);
191 USETW(req.wLength, AXE_CMD_LEN(cmd));
192
193 err = usbd_do_request(sc->axe_udev, &req, buf);
194
195 if (err)
196 return(-1);
197
198 return(0);
199}
200
201Static int
202axe_miibus_readreg(device_ptr_t dev, int phy, int reg)
203{
204 struct axe_softc *sc = USBGETSOFTC(dev);
205 usbd_status err;
206 u_int16_t val;
730f2253 207 int s;
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208
209 if (sc->axe_dying)
210 return(0);
211
212#ifdef notdef
213 /*
214 * The chip tells us the MII address of any supported
215 * PHYs attached to the chip, so only read from those.
216 */
217
218 if (sc->axe_phyaddrs[0] != AXE_NOPHY && phy != sc->axe_phyaddrs[0])
219 return (0);
220
221 if (sc->axe_phyaddrs[1] != AXE_NOPHY && phy != sc->axe_phyaddrs[1])
222 return (0);
223#endif
224 if (sc->axe_phyaddrs[0] != 0xFF && sc->axe_phyaddrs[0] != phy)
225 return (0);
226
730f2253 227 s = splimp();
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228 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL);
229 err = axe_cmd(sc, AXE_CMD_MII_READ_REG, reg, phy, (void *)&val);
230 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL);
730f2253 231 splx(s);
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232
233 if (err) {
234 printf("axe%d: read PHY failed\n", sc->axe_unit);
235 return(-1);
236 }
237
238 if (val)
239 sc->axe_phyaddrs[0] = phy;
240
241 return (val);
242}
243
244Static int
245axe_miibus_writereg(device_ptr_t dev, int phy, int reg, int val)
246{
247 struct axe_softc *sc = USBGETSOFTC(dev);
248 usbd_status err;
730f2253 249 int s;
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250
251 if (sc->axe_dying)
252 return(0);
253
730f2253 254 s = splimp();
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255 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL);
256 err = axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, (void *)&val);
257 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL);
730f2253 258 splx(s);
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259
260 if (err) {
261 printf("axe%d: write PHY failed\n", sc->axe_unit);
262 return(-1);
263 }
264
265 return (0);
266}
267
268Static void
269axe_miibus_statchg(device_ptr_t dev)
270{
271#ifdef notdef
272 struct axe_softc *sc = USBGETSOFTC(dev);
273 struct mii_data *mii = GET_MII(sc);
274#endif
275 /* doesn't seem to be necessary */
276
277 return;
278}
279
280/*
281 * Set media options.
282 */
283Static int
284axe_ifmedia_upd(struct ifnet *ifp)
285{
286 struct axe_softc *sc = ifp->if_softc;
287 struct mii_data *mii = GET_MII(sc);
288
289 sc->axe_link = 0;
290 if (mii->mii_instance) {
291 struct mii_softc *miisc;
292 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
293 mii_phy_reset(miisc);
294 }
295 mii_mediachg(mii);
296
297 return (0);
298}
299
300/*
301 * Report current media status.
302 */
303Static void
304axe_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
305{
306 struct axe_softc *sc = ifp->if_softc;
307 struct mii_data *mii = GET_MII(sc);
308
309 mii_pollstat(mii);
310 ifmr->ifm_active = mii->mii_media_active;
311 ifmr->ifm_status = mii->mii_media_status;
312
313 return;
314}
315
316Static uint32_t
317axe_mchash(const uint8_t *addr)
318{
319 uint32_t crc, carry;
320 int idx, bit;
321 uint8_t data;
322
323 /* Compute CRC for the address value. */
324 crc = 0xFFFFFFFF; /* initial value */
325
326 for (idx = 0; idx < 6; idx++) {
327 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) {
328 carry = ((crc & 0x80000000) ? 1 : 0) ^ (data & 0x01);
329 crc <<= 1;
330 if (carry)
331 crc = (crc ^ 0x04c11db6) | carry;
332 }
333 }
334
335 /* return the filter bit position */
336 return((crc >> 26) & 0x0000003F);
337}
338
339Static void
340axe_setmulti(struct axe_softc *sc)
341{
342 struct ifnet *ifp;
343 struct ifmultiaddr *ifma;
344 u_int32_t h = 0;
345 u_int16_t rxmode;
346 u_int8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
730f2253 347 int s;
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348
349 ifp = &sc->arpcom.ac_if;
350
730f2253 351 s = splimp();
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352 axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, (void *)&rxmode);
353
354 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
355 rxmode |= AXE_RXCMD_ALLMULTI;
356 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
730f2253 357 splx(s);
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358 return;
359 } else
360 rxmode &= ~AXE_RXCMD_ALLMULTI;
361
730f2253 362 LIST_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
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363 if (ifma->ifma_addr->sa_family != AF_LINK)
364 continue;
365 h = axe_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr));
366 hashtbl[h / 8] |= 1 << (h % 8);
367 }
368
369 axe_cmd(sc, AXE_CMD_WRITE_MCAST, 0, 0, (void *)&hashtbl);
370 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
1550dfd9 371
730f2253 372 splx(s);
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373}
374
375Static void
376axe_reset(struct axe_softc *sc)
377{
378 if (sc->axe_dying)
379 return;
380
381 if (usbd_set_config_no(sc->axe_udev, AXE_CONFIG_NO, 1) ||
382 usbd_device2interface_handle(sc->axe_udev, AXE_IFACE_IDX,
383 &sc->axe_iface)) {
384 printf("axe%d: getting interface handle failed\n",
385 sc->axe_unit);
386 }
387
388 /* Wait a little while for the chip to get its brains in order. */
389 DELAY(1000);
390 return;
391}
392
393/*
394 * Probe for a AX88172 chip.
395 */
396USB_MATCH(axe)
397{
398 USB_MATCH_START(axe, uaa);
399 struct axe_type *t;
400
401 if (!uaa->iface)
402 return(UMATCH_NONE);
403
404 t = axe_devs;
405 while(t->axe_vid) {
406 if (uaa->vendor == t->axe_vid &&
407 uaa->product == t->axe_did) {
408 return(UMATCH_VENDOR_PRODUCT);
409 }
410 t++;
411 }
412
413 return(UMATCH_NONE);
414}
415
416/*
417 * Attach the interface. Allocate softc structures, do ifmedia
418 * setup and ethernet/BPF attach.
419 */
420USB_ATTACH(axe)
421{
422 USB_ATTACH_START(axe, sc, uaa);
423 char devinfo[1024];
424 u_char eaddr[ETHER_ADDR_LEN];
425 struct ifnet *ifp;
426 usb_interface_descriptor_t *id;
427 usb_endpoint_descriptor_t *ed;
428 int i;
429
430 bzero(sc, sizeof(struct axe_softc));
431 sc->axe_udev = uaa->device;
432 sc->axe_dev = self;
433 sc->axe_unit = device_get_unit(self);
730f2253 434 callout_init(&sc->axe_stat_timer);
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435
436 if (usbd_set_config_no(sc->axe_udev, AXE_CONFIG_NO, 1)) {
437 printf("axe%d: getting interface handle failed\n",
438 sc->axe_unit);
439 USB_ATTACH_ERROR_RETURN;
440 }
441
442 if (usbd_device2interface_handle(uaa->device,
443 AXE_IFACE_IDX, &sc->axe_iface)) {
444 printf("axe%d: getting interface handle failed\n",
445 sc->axe_unit);
446 USB_ATTACH_ERROR_RETURN;
447 }
448
449 id = usbd_get_interface_descriptor(sc->axe_iface);
450
451 usbd_devinfo(uaa->device, 0, devinfo);
452 device_set_desc_copy(self, devinfo);
453 printf("%s: %s\n", USBDEVNAME(self), devinfo);
454
455 /* Find endpoints. */
456 for (i = 0; i < id->bNumEndpoints; i++) {
457 ed = usbd_interface2endpoint_descriptor(sc->axe_iface, i);
458 if (!ed) {
459 printf("axe%d: couldn't get ep %d\n",
460 sc->axe_unit, i);
461 USB_ATTACH_ERROR_RETURN;
462 }
463 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
464 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
465 sc->axe_ed[AXE_ENDPT_RX] = ed->bEndpointAddress;
466 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
467 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
468 sc->axe_ed[AXE_ENDPT_TX] = ed->bEndpointAddress;
469 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
470 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
471 sc->axe_ed[AXE_ENDPT_INTR] = ed->bEndpointAddress;
472 }
473 }
474
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475 /*
476 * Get station address.
477 */
478 axe_cmd(sc, AXE_CMD_READ_NODEID, 0, 0, &eaddr);
479
480 /*
481 * Load IPG values and PHY indexes.
482 */
483 axe_cmd(sc, AXE_CMD_READ_IPG012, 0, 0, (void *)&sc->axe_ipgs);
484 axe_cmd(sc, AXE_CMD_READ_PHYID, 0, 0, (void *)&sc->axe_phyaddrs);
485
486 /*
487 * Work around broken adapters that appear to lie about
488 * their PHY addresses.
489 */
490 sc->axe_phyaddrs[0] = sc->axe_phyaddrs[1] = 0xFF;
491
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492 ifp = &sc->arpcom.ac_if;
493 ifp->if_softc = sc;
494 if_initname(ifp, "axe", sc->axe_unit);
495 ifp->if_mtu = ETHERMTU;
496 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
497 ifp->if_ioctl = axe_ioctl;
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498 ifp->if_start = axe_start;
499 ifp->if_watchdog = axe_watchdog;
500 ifp->if_init = axe_init;
501 ifp->if_baudrate = 10000000;
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502 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
503 ifq_set_ready(&ifp->if_snd);
1550dfd9 504
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505 if (mii_phy_probe(self, &sc->axe_miibus,
506 axe_ifmedia_upd, axe_ifmedia_sts)) {
507 printf("axe%d: MII without any PHY!\n", sc->axe_unit);
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508 USB_ATTACH_ERROR_RETURN;
509 }
510
511 /*
512 * Call MI attach routine.
513 */
514
515 ether_ifattach(ifp, eaddr);
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516
517 sc->axe_dying = 0;
518
730f2253 519 usb_register_netisr();
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520
521 USB_ATTACH_SUCCESS_RETURN;
522}
523
524Static int
525axe_detach(device_ptr_t dev)
526{
527 struct axe_softc *sc;
528 struct ifnet *ifp;
730f2253 529 int s;
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530
531 sc = device_get_softc(dev);
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532 ifp = &sc->arpcom.ac_if;
533
730f2253 534 s = splimp();
1550dfd9 535 sc->axe_dying = 1;
730f2253 536 callout_stop(&sc->axe_stat_timer);
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537 ether_ifdetach(ifp);
538
539 if (sc->axe_ep[AXE_ENDPT_TX] != NULL)
540 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]);
541 if (sc->axe_ep[AXE_ENDPT_RX] != NULL)
542 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]);
543 if (sc->axe_ep[AXE_ENDPT_INTR] != NULL)
544 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
545
730f2253 546 splx(s);
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547
548 return(0);
549}
550
551/*
552 * Initialize an RX descriptor and attach an MBUF cluster.
553 */
554Static int
555axe_newbuf(struct axe_softc *sc, struct axe_chain *c, struct mbuf *m)
556{
557 struct mbuf *m_new = NULL;
558
559 if (m == NULL) {
74f1caca 560 m_new = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
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561 if (m_new == NULL) {
562 printf("axe%d: no memory for rx list "
563 "-- packet dropped!\n", sc->axe_unit);
564 return(ENOBUFS);
565 }
566 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
567 } else {
568 m_new = m;
569 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
570 m_new->m_data = m_new->m_ext.ext_buf;
571 }
572
573 m_adj(m_new, ETHER_ALIGN);
574 c->axe_mbuf = m_new;
575
576 return(0);
577}
578
579Static int
580axe_rx_list_init(struct axe_softc *sc)
581{
582 struct axe_cdata *cd;
583 struct axe_chain *c;
584 int i;
585
586 cd = &sc->axe_cdata;
587 for (i = 0; i < AXE_RX_LIST_CNT; i++) {
588 c = &cd->axe_rx_chain[i];
589 c->axe_sc = sc;
590 c->axe_idx = i;
591 if (axe_newbuf(sc, c, NULL) == ENOBUFS)
592 return(ENOBUFS);
593 if (c->axe_xfer == NULL) {
594 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev);
595 if (c->axe_xfer == NULL)
596 return(ENOBUFS);
597 }
598 }
599
600 return(0);
601}
602
603Static int
604axe_tx_list_init(struct axe_softc *sc)
605{
606 struct axe_cdata *cd;
607 struct axe_chain *c;
608 int i;
609
610 cd = &sc->axe_cdata;
611 for (i = 0; i < AXE_TX_LIST_CNT; i++) {
612 c = &cd->axe_tx_chain[i];
613 c->axe_sc = sc;
614 c->axe_idx = i;
615 c->axe_mbuf = NULL;
616 if (c->axe_xfer == NULL) {
617 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev);
618 if (c->axe_xfer == NULL)
619 return(ENOBUFS);
620 }
c5541aee 621 c->axe_buf = malloc(AXE_BUFSZ, M_USBDEV, M_WAITOK);
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622 if (c->axe_buf == NULL)
623 return(ENOBUFS);
624 }
625
626 return(0);
627}
628
629Static void
630axe_rxstart(struct ifnet *ifp)
631{
632 struct axe_softc *sc;
633 struct axe_chain *c;
730f2253 634 int s;
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635
636 sc = ifp->if_softc;
730f2253 637 s = splimp();
1550dfd9
MD
638 c = &sc->axe_cdata.axe_rx_chain[sc->axe_cdata.axe_rx_prod];
639
640 if (axe_newbuf(sc, c, NULL) == ENOBUFS) {
641 ifp->if_ierrors++;
730f2253 642 splx(s);
1550dfd9
MD
643 return;
644 }
645
646 /* Setup new transfer. */
647 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX],
648 c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, USBD_SHORT_XFER_OK,
649 USBD_NO_TIMEOUT, axe_rxeof);
650 usbd_transfer(c->axe_xfer);
730f2253 651 splx(s);
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MD
652
653 return;
654}
655
656/*
657 * A frame has been uploaded: pass the resulting mbuf chain up to
658 * the higher level protocols.
659 */
660Static void
661axe_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
662{
663 struct axe_softc *sc;
664 struct axe_chain *c;
665 struct mbuf *m;
666 struct ifnet *ifp;
730f2253 667 int s, total_len = 0;
1550dfd9
MD
668
669 c = priv;
670 sc = c->axe_sc;
730f2253 671 s = splimp();
1550dfd9
MD
672 ifp = &sc->arpcom.ac_if;
673
674 if (!(ifp->if_flags & IFF_RUNNING)) {
730f2253 675 splx(s);
1550dfd9
MD
676 return;
677 }
678
679 if (status != USBD_NORMAL_COMPLETION) {
680 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
730f2253 681 splx(s);
1550dfd9
MD
682 return;
683 }
684 if (usbd_ratecheck(&sc->axe_rx_notice))
685 printf("axe%d: usb error on rx: %s\n", sc->axe_unit,
686 usbd_errstr(status));
687 if (status == USBD_STALLED)
688 usbd_clear_endpoint_stall(sc->axe_ep[AXE_ENDPT_RX]);
689 goto done;
690 }
691
692 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
693
694 m = c->axe_mbuf;
695
696 if (total_len < sizeof(struct ether_header)) {
697 ifp->if_ierrors++;
698 goto done;
699 }
700
701 ifp->if_ipackets++;
ca3f7aba 702 m->m_pkthdr.rcvif = ifp;
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MD
703 m->m_pkthdr.len = m->m_len = total_len;
704
705 /* Put the packet on the special USB input queue. */
706 usb_ether_input(m);
ca3f7aba 707 axe_rxstart(ifp);
730f2253 708 splx(s);
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MD
709
710 return;
711done:
712 /* Setup new transfer. */
713 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX],
714 c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, USBD_SHORT_XFER_OK,
715 USBD_NO_TIMEOUT, axe_rxeof);
716 usbd_transfer(c->axe_xfer);
730f2253 717 splx(s);
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MD
718
719 return;
720}
721
722/*
723 * A frame was downloaded to the chip. It's safe for us to clean up
724 * the list buffers.
725 */
726
727Static void
728axe_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
729{
730 struct axe_softc *sc;
731 struct axe_chain *c;
732 struct ifnet *ifp;
733 usbd_status err;
730f2253 734 int s;
1550dfd9
MD
735
736 c = priv;
737 sc = c->axe_sc;
1550dfd9
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738 ifp = &sc->arpcom.ac_if;
739
730f2253
JS
740 s = splimp();
741
1550dfd9
MD
742 if (status != USBD_NORMAL_COMPLETION) {
743 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
730f2253 744 splx(s);
1550dfd9
MD
745 return;
746 }
747 printf("axe%d: usb error on tx: %s\n", sc->axe_unit,
748 usbd_errstr(status));
749 if (status == USBD_STALLED)
750 usbd_clear_endpoint_stall(sc->axe_ep[AXE_ENDPT_TX]);
730f2253 751 splx(s);
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MD
752 return;
753 }
754
755 ifp->if_timer = 0;
756 ifp->if_flags &= ~IFF_OACTIVE;
757 usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &err);
758
759 if (c->axe_mbuf != NULL) {
ca3f7aba 760 m_freem(c->axe_mbuf);
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MD
761 c->axe_mbuf = NULL;
762 }
763
764 if (err)
765 ifp->if_oerrors++;
766 else
767 ifp->if_opackets++;
768
ca3f7aba
JS
769 if (!ifq_is_empty(&ifp->if_snd))
770 (*ifp->if_start)(ifp);
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
1550dfd9
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();
1550dfd9
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++;
50e6530b 799 if (!ifq_is_empty(&ifp->if_snd))
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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();
1550dfd9
MD
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
50e6530b 858 m_head = ifq_poll(&ifp->if_snd);
1550dfd9 859 if (m_head == NULL) {
730f2253 860 splx(s);
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MD
861 return;
862 }
863
864 if (axe_encap(sc, m_head, 0)) {
1550dfd9 865 ifp->if_flags |= IFF_OACTIVE;
730f2253 866 splx(s);
1550dfd9
MD
867 return;
868 }
50e6530b 869 m_head = ifq_dequeue(&ifp->if_snd);
1550dfd9
MD
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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MD
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;
1550dfd9
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);
1550dfd9
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);
1550dfd9
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
50e6530b 1065 if (!ifq_is_empty(&ifp->if_snd))
1550dfd9
MD
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}