kernel: Use NULL for DRIVER_MODULE()'s evh & arg (which are pointers).
[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 $
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33 */
34/*
35 * ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the
36 * LinkSys USB200M and various other adapters.
37 *
38 * Manuals available from:
39 * http://www.asix.com.tw/datasheet/mac/Ax88172.PDF
40 * Note: you need the manual for the AX88170 chip (USB 1.x ethernet
41 * controller) to find the definitions for the RX control register.
42 * http://www.asix.com.tw/datasheet/mac/Ax88170.PDF
43 *
44 * Written by Bill Paul <wpaul@windriver.com>
45 * Senior Engineer
46 * Wind River Systems
47 */
48
49/*
50 * The AX88172 provides USB ethernet supports at 10 and 100Mbps.
51 * It uses an external PHY (reference designs use a RealTek chip),
52 * and has a 64-bit multicast hash filter. There is some information
53 * missing from the manual which one needs to know in order to make
54 * the chip function:
55 *
56 * - You must set bit 7 in the RX control register, otherwise the
57 * chip won't receive any packets.
58 * - You must initialize all 3 IPG registers, or you won't be able
59 * to send any packets.
60 *
61 * Note that this device appears to only support loading the station
62 * address via autload from the EEPROM (i.e. there's no way to manaully
63 * set it).
64 *
65 * (Adam Weinberger wanted me to name this driver if_gir.c.)
66 */
67
68#include <sys/param.h>
69#include <sys/systm.h>
70#include <sys/sockio.h>
71#include <sys/mbuf.h>
72#include <sys/malloc.h>
73#include <sys/kernel.h>
74#include <sys/socket.h>
1f7ab7c9 75#include <sys/bus.h>
78bd77df 76#include <sys/thread2.h>
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77
78#include <net/if.h>
50e6530b 79#include <net/ifq_var.h>
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80#include <net/if_arp.h>
81#include <net/ethernet.h>
82#include <net/if_dl.h>
83#include <net/if_media.h>
84
85#include <net/bpf.h>
86
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87#include <bus/usb/usb.h>
88#include <bus/usb/usbdi.h>
89#include <bus/usb/usbdi_util.h>
90#include <bus/usb/usbdivar.h>
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91#include <bus/usb/usb_ethersubr.h>
92
93#include "../mii_layer//mii.h"
94#include "../mii_layer/miivar.h"
95
96/* "controller miibus0" required. See GENERIC if you get errors here. */
97#include "miibus_if.h"
98
99#include "if_axereg.h"
100
101/*
102 * Various supported device vendors/products.
103 */
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104static struct usb_devno axe_devs[] = {
105 { USB_DEVICE(0x0411, 0x003d) }, /* Melco LUA-U2-KTX */
106 { USB_DEVICE(0x04f1, 0x3008) }, /* JVC MP-PRX1 */
107 { USB_DEVICE(0x077b, 0x2226) }, /* Linksys USB200M */
108 { USB_DEVICE(0x0846, 0x1040) }, /* BayNETGEAR FA120 */
109 { USB_DEVICE(0x086e, 0x1920) }, /* System Talks SGC-X2UL */
110 { USB_DEVICE(0x0b95, 0x1720) }, /* ASIX Electronics AX88172 */
111 { USB_DEVICE(0x2001, 0x1a00) }, /* D-Link DUBE100 */
112 { USB_DEVICE(0x6189, 0x182d) }, /* Sitecom LN029 */
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113};
114
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115static int axe_match(device_t);
116static int axe_attach(device_t);
117static int axe_detach(device_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 *);
128static int axe_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
129static void axe_init(void *);
130static void axe_stop(struct axe_softc *);
131static void axe_watchdog(struct ifnet *);
132static void axe_shutdown(device_t);
133static int axe_miibus_readreg(device_t, int, int);
134static int axe_miibus_writereg(device_t, int, int, int);
135static void axe_miibus_statchg(device_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 *);
141
142static device_method_t axe_methods[] = {
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143 /* Device interface */
144 DEVMETHOD(device_probe, axe_match),
145 DEVMETHOD(device_attach, axe_attach),
146 DEVMETHOD(device_detach, axe_detach),
147 DEVMETHOD(device_shutdown, axe_shutdown),
148
149 /* bus interface */
150 DEVMETHOD(bus_print_child, bus_generic_print_child),
151 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
152
153 /* MII interface */
154 DEVMETHOD(miibus_readreg, axe_miibus_readreg),
155 DEVMETHOD(miibus_writereg, axe_miibus_writereg),
156 DEVMETHOD(miibus_statchg, axe_miibus_statchg),
157
158 { 0, 0 }
159};
160
6ed427ca 161static driver_t axe_driver = {
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162 "axe",
163 axe_methods,
164 sizeof(struct axe_softc)
165};
166
6ed427ca 167static devclass_t axe_devclass;
1550dfd9 168
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169DRIVER_MODULE(axe, uhub, axe_driver, axe_devclass, usbd_driver_load, NULL);
170DRIVER_MODULE(miibus, axe, miibus_driver, miibus_devclass, NULL, NULL);
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171MODULE_DEPEND(axe, usb, 1, 1, 1);
172MODULE_DEPEND(axe, miibus, 1, 1, 1);
173
6ed427ca 174static int
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175axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf)
176{
177 usb_device_request_t req;
178 usbd_status err;
179
180 if (sc->axe_dying)
181 return(0);
182
183 if (AXE_CMD_DIR(cmd))
184 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
185 else
186 req.bmRequestType = UT_READ_VENDOR_DEVICE;
187 req.bRequest = AXE_CMD_CMD(cmd);
188 USETW(req.wValue, val);
189 USETW(req.wIndex, index);
190 USETW(req.wLength, AXE_CMD_LEN(cmd));
191
192 err = usbd_do_request(sc->axe_udev, &req, buf);
193
194 if (err)
195 return(-1);
196
197 return(0);
198}
199
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200static int
201axe_miibus_readreg(device_t dev, int phy, int reg)
1550dfd9 202{
6ed427ca 203 struct axe_softc *sc = device_get_softc(dev);
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204 usbd_status err;
205 u_int16_t val;
206
78bd77df 207 if (sc->axe_dying) {
1550dfd9 208 return(0);
78bd77df 209 }
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210
211#ifdef notdef
212 /*
213 * The chip tells us the MII address of any supported
214 * PHYs attached to the chip, so only read from those.
215 */
216
78bd77df 217 if (sc->axe_phyaddrs[0] != AXE_NOPHY && phy != sc->axe_phyaddrs[0]) {
1550dfd9 218 return (0);
78bd77df 219 }
1550dfd9 220
78bd77df 221 if (sc->axe_phyaddrs[1] != AXE_NOPHY && phy != sc->axe_phyaddrs[1]) {
1550dfd9 222 return (0);
78bd77df 223 }
1550dfd9 224#endif
78bd77df 225 if (sc->axe_phyaddrs[0] != 0xFF && sc->axe_phyaddrs[0] != phy) {
1550dfd9 226 return (0);
78bd77df 227 }
1550dfd9 228
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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);
78bd77df 232
1550dfd9 233 if (err) {
70eac22b 234 if_printf(&sc->arpcom.ac_if, "read PHY failed\n");
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235 return(-1);
236 }
237
238 if (val)
239 sc->axe_phyaddrs[0] = phy;
240
241 return (val);
242}
243
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244static int
245axe_miibus_writereg(device_t dev, int phy, int reg, int val)
1550dfd9 246{
6ed427ca 247 struct axe_softc *sc = device_get_softc(dev);
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248 usbd_status err;
249
78bd77df 250 if (sc->axe_dying) {
1550dfd9 251 return(0);
78bd77df 252 }
1550dfd9 253
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254 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL);
255 err = axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, (void *)&val);
256 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL);
78bd77df 257
1550dfd9 258 if (err) {
70eac22b 259 if_printf(&sc->arpcom.ac_if, "write PHY failed\n");
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260 return(-1);
261 }
262
263 return (0);
264}
265
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266static void
267axe_miibus_statchg(device_t dev)
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268{
269#ifdef notdef
6ed427ca 270 struct axe_softc *sc = device_get_softc(dev);
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271 struct mii_data *mii = GET_MII(sc);
272#endif
273 /* doesn't seem to be necessary */
274
275 return;
276}
277
278/*
279 * Set media options.
280 */
6ed427ca 281static int
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282axe_ifmedia_upd(struct ifnet *ifp)
283{
284 struct axe_softc *sc = ifp->if_softc;
285 struct mii_data *mii = GET_MII(sc);
286
287 sc->axe_link = 0;
288 if (mii->mii_instance) {
289 struct mii_softc *miisc;
290 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
291 mii_phy_reset(miisc);
292 }
293 mii_mediachg(mii);
294
295 return (0);
296}
297
298/*
299 * Report current media status.
300 */
6ed427ca 301static void
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302axe_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
303{
304 struct axe_softc *sc = ifp->if_softc;
305 struct mii_data *mii = GET_MII(sc);
306
307 mii_pollstat(mii);
308 ifmr->ifm_active = mii->mii_media_active;
309 ifmr->ifm_status = mii->mii_media_status;
310
311 return;
312}
313
6ed427ca 314static void
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315axe_setmulti(struct axe_softc *sc)
316{
78bd77df 317 struct ifnet *ifp = &sc->arpcom.ac_if;
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318 struct ifmultiaddr *ifma;
319 u_int32_t h = 0;
320 u_int16_t rxmode;
321 u_int8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
322
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323 axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, (void *)&rxmode);
324
325 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
326 rxmode |= AXE_RXCMD_ALLMULTI;
327 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
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328 return;
329 } else
330 rxmode &= ~AXE_RXCMD_ALLMULTI;
331
441d34b2 332 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
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333 if (ifma->ifma_addr->sa_family != AF_LINK)
334 continue;
af66ecef
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335 h = ether_crc32_be(
336 LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
337 ETHER_ADDR_LEN);
338 /* the filter bit position */
339 h = (h >> 26) & 0x0000003F;
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340 hashtbl[h / 8] |= 1 << (h % 8);
341 }
342
343 axe_cmd(sc, AXE_CMD_WRITE_MCAST, 0, 0, (void *)&hashtbl);
344 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
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345}
346
6ed427ca 347static void
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348axe_reset(struct axe_softc *sc)
349{
350 if (sc->axe_dying)
351 return;
352
353 if (usbd_set_config_no(sc->axe_udev, AXE_CONFIG_NO, 1) ||
354 usbd_device2interface_handle(sc->axe_udev, AXE_IFACE_IDX,
355 &sc->axe_iface)) {
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JS
356 if_printf(&sc->arpcom.ac_if,
357 "getting interface handle failed\n");
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358 }
359
360 /* Wait a little while for the chip to get its brains in order. */
361 DELAY(1000);
362 return;
363}
364
365/*
366 * Probe for a AX88172 chip.
367 */
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368static int
369axe_match(device_t self)
1550dfd9 370{
e785a5d9 371 struct usb_attach_arg *uaa = device_get_ivars(self);
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372
373 if (!uaa->iface)
374 return(UMATCH_NONE);
375
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376 return (usb_lookup(axe_devs, uaa->vendor, uaa->product) != NULL ?
377 UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
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378}
379
380/*
381 * Attach the interface. Allocate softc structures, do ifmedia
382 * setup and ethernet/BPF attach.
383 */
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384static int
385axe_attach(device_t self)
1550dfd9 386{
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387 struct axe_softc *sc = device_get_softc(self);
388 struct usb_attach_arg *uaa = device_get_ivars(self);
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389 u_char eaddr[ETHER_ADDR_LEN];
390 struct ifnet *ifp;
391 usb_interface_descriptor_t *id;
392 usb_endpoint_descriptor_t *ed;
393 int i;
394
1550dfd9 395 sc->axe_udev = uaa->device;
730f2253 396 callout_init(&sc->axe_stat_timer);
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MD
397
398 if (usbd_set_config_no(sc->axe_udev, AXE_CONFIG_NO, 1)) {
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399 device_printf(self, "setting config no %d failed\n",
400 AXE_CONFIG_NO);
e785a5d9 401 return ENXIO;
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MD
402 }
403
404 if (usbd_device2interface_handle(uaa->device,
405 AXE_IFACE_IDX, &sc->axe_iface)) {
70eac22b 406 device_printf(self, "getting interface handle failed\n");
e785a5d9 407 return ENXIO;
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MD
408 }
409
410 id = usbd_get_interface_descriptor(sc->axe_iface);
411
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MD
412 /* Find endpoints. */
413 for (i = 0; i < id->bNumEndpoints; i++) {
414 ed = usbd_interface2endpoint_descriptor(sc->axe_iface, i);
415 if (!ed) {
70eac22b 416 device_printf(self, "couldn't get ep %d\n", i);
e785a5d9 417 return ENXIO;
1550dfd9
MD
418 }
419 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
420 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
421 sc->axe_ed[AXE_ENDPT_RX] = ed->bEndpointAddress;
422 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
423 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
424 sc->axe_ed[AXE_ENDPT_TX] = ed->bEndpointAddress;
425 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
426 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
427 sc->axe_ed[AXE_ENDPT_INTR] = ed->bEndpointAddress;
428 }
429 }
430
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431 /*
432 * Get station address.
433 */
434 axe_cmd(sc, AXE_CMD_READ_NODEID, 0, 0, &eaddr);
435
436 /*
437 * Load IPG values and PHY indexes.
438 */
439 axe_cmd(sc, AXE_CMD_READ_IPG012, 0, 0, (void *)&sc->axe_ipgs);
440 axe_cmd(sc, AXE_CMD_READ_PHYID, 0, 0, (void *)&sc->axe_phyaddrs);
441
442 /*
443 * Work around broken adapters that appear to lie about
444 * their PHY addresses.
445 */
446 sc->axe_phyaddrs[0] = sc->axe_phyaddrs[1] = 0xFF;
447
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448 ifp = &sc->arpcom.ac_if;
449 ifp->if_softc = sc;
70eac22b 450 if_initname(ifp, device_get_name(self), device_get_unit(self));
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451 ifp->if_mtu = ETHERMTU;
452 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
453 ifp->if_ioctl = axe_ioctl;
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454 ifp->if_start = axe_start;
455 ifp->if_watchdog = axe_watchdog;
456 ifp->if_init = axe_init;
457 ifp->if_baudrate = 10000000;
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JS
458 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
459 ifq_set_ready(&ifp->if_snd);
1550dfd9 460
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461 if (mii_phy_probe(self, &sc->axe_miibus,
462 axe_ifmedia_upd, axe_ifmedia_sts)) {
70eac22b 463 device_printf(self, "MII without any PHY!\n");
e785a5d9 464 return ENXIO;
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MD
465 }
466
467 /*
468 * Call MI attach routine.
469 */
470
78195a76 471 ether_ifattach(ifp, eaddr, NULL);
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472
473 sc->axe_dying = 0;
474
730f2253 475 usb_register_netisr();
1550dfd9 476
e785a5d9 477 return 0;
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478}
479
6ed427ca
HT
480static int
481axe_detach(device_t dev)
1550dfd9 482{
78bd77df
JS
483 struct axe_softc *sc = device_get_softc(dev);
484 struct ifnet *ifp = &sc->arpcom.ac_if;
1550dfd9 485
1550dfd9 486 sc->axe_dying = 1;
730f2253 487 callout_stop(&sc->axe_stat_timer);
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488 ether_ifdetach(ifp);
489
490 if (sc->axe_ep[AXE_ENDPT_TX] != NULL)
491 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]);
492 if (sc->axe_ep[AXE_ENDPT_RX] != NULL)
493 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]);
494 if (sc->axe_ep[AXE_ENDPT_INTR] != NULL)
495 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
496
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497 return(0);
498}
499
500/*
501 * Initialize an RX descriptor and attach an MBUF cluster.
502 */
6ed427ca 503static int
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504axe_newbuf(struct axe_softc *sc, struct axe_chain *c, struct mbuf *m)
505{
506 struct mbuf *m_new = NULL;
507
508 if (m == NULL) {
74f1caca 509 m_new = m_getcl(MB_DONTWAIT, MT_DATA, M_PKTHDR);
1550dfd9 510 if (m_new == NULL) {
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JS
511 if_printf(&sc->arpcom.ac_if, "no memory for rx list "
512 "-- packet dropped!\n");
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513 return(ENOBUFS);
514 }
515 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
516 } else {
517 m_new = m;
518 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
519 m_new->m_data = m_new->m_ext.ext_buf;
520 }
521
522 m_adj(m_new, ETHER_ALIGN);
523 c->axe_mbuf = m_new;
524
525 return(0);
526}
527
6ed427ca 528static int
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529axe_rx_list_init(struct axe_softc *sc)
530{
531 struct axe_cdata *cd;
532 struct axe_chain *c;
533 int i;
534
535 cd = &sc->axe_cdata;
536 for (i = 0; i < AXE_RX_LIST_CNT; i++) {
537 c = &cd->axe_rx_chain[i];
538 c->axe_sc = sc;
539 c->axe_idx = i;
540 if (axe_newbuf(sc, c, NULL) == ENOBUFS)
541 return(ENOBUFS);
542 if (c->axe_xfer == NULL) {
543 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev);
544 if (c->axe_xfer == NULL)
545 return(ENOBUFS);
546 }
547 }
548
549 return(0);
550}
551
6ed427ca 552static int
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553axe_tx_list_init(struct axe_softc *sc)
554{
555 struct axe_cdata *cd;
556 struct axe_chain *c;
557 int i;
558
559 cd = &sc->axe_cdata;
560 for (i = 0; i < AXE_TX_LIST_CNT; i++) {
561 c = &cd->axe_tx_chain[i];
562 c->axe_sc = sc;
563 c->axe_idx = i;
564 c->axe_mbuf = NULL;
565 if (c->axe_xfer == NULL) {
566 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev);
567 if (c->axe_xfer == NULL)
568 return(ENOBUFS);
569 }
efda3bd0 570 c->axe_buf = kmalloc(AXE_BUFSZ, M_USBDEV, M_WAITOK);
1550dfd9
MD
571 }
572
573 return(0);
574}
575
6ed427ca 576static void
1550dfd9
MD
577axe_rxstart(struct ifnet *ifp)
578{
78bd77df
JS
579 struct axe_softc *sc = ifp->if_softc;
580 struct axe_chain *c;
1550dfd9 581
1550dfd9
MD
582 c = &sc->axe_cdata.axe_rx_chain[sc->axe_cdata.axe_rx_prod];
583
584 if (axe_newbuf(sc, c, NULL) == ENOBUFS) {
585 ifp->if_ierrors++;
1550dfd9
MD
586 return;
587 }
588
589 /* Setup new transfer. */
590 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX],
591 c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, USBD_SHORT_XFER_OK,
592 USBD_NO_TIMEOUT, axe_rxeof);
593 usbd_transfer(c->axe_xfer);
1550dfd9
MD
594}
595
596/*
597 * A frame has been uploaded: pass the resulting mbuf chain up to
598 * the higher level protocols.
599 */
6ed427ca 600static void
1550dfd9
MD
601axe_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
602{
78bd77df
JS
603 struct axe_chain *c = priv;
604 struct axe_softc *sc = c->axe_sc;
605 struct ifnet *ifp = &sc->arpcom.ac_if;
606 struct mbuf *m;
607 int total_len = 0;
1550dfd9 608
78195a76 609 lwkt_serialize_enter(ifp->if_serializer);
1550dfd9
MD
610
611 if (!(ifp->if_flags & IFF_RUNNING)) {
78195a76 612 lwkt_serialize_exit(ifp->if_serializer);
1550dfd9
MD
613 return;
614 }
615
616 if (status != USBD_NORMAL_COMPLETION) {
617 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
78195a76 618 lwkt_serialize_exit(ifp->if_serializer);
1550dfd9
MD
619 return;
620 }
70eac22b
JS
621 if (usbd_ratecheck(&sc->axe_rx_notice)) {
622 if_printf(ifp, "usb error on rx: %s\n",
1550dfd9 623 usbd_errstr(status));
70eac22b 624 }
1550dfd9
MD
625 if (status == USBD_STALLED)
626 usbd_clear_endpoint_stall(sc->axe_ep[AXE_ENDPT_RX]);
627 goto done;
628 }
629
630 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL);
631
632 m = c->axe_mbuf;
633
634 if (total_len < sizeof(struct ether_header)) {
635 ifp->if_ierrors++;
636 goto done;
637 }
638
639 ifp->if_ipackets++;
ca3f7aba 640 m->m_pkthdr.rcvif = ifp;
1550dfd9
MD
641 m->m_pkthdr.len = m->m_len = total_len;
642
643 /* Put the packet on the special USB input queue. */
644 usb_ether_input(m);
ca3f7aba 645 axe_rxstart(ifp);
78195a76 646 lwkt_serialize_exit(ifp->if_serializer);
1550dfd9
MD
647 return;
648done:
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);
78195a76 654 lwkt_serialize_exit(ifp->if_serializer);
1550dfd9
MD
655}
656
657/*
658 * A frame was downloaded to the chip. It's safe for us to clean up
659 * the list buffers.
660 */
661
6ed427ca 662static void
1550dfd9
MD
663axe_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
664{
78bd77df
JS
665 struct axe_chain *c = priv;
666 struct axe_softc *sc = c->axe_sc;
667 struct ifnet *ifp = &sc->arpcom.ac_if;
668 usbd_status err;
1550dfd9 669
78195a76 670 lwkt_serialize_enter(ifp->if_serializer);
1550dfd9
MD
671 if (status != USBD_NORMAL_COMPLETION) {
672 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) {
78195a76 673 lwkt_serialize_exit(ifp->if_serializer);
1550dfd9
MD
674 return;
675 }
70eac22b 676 if_printf(ifp, "usb error on tx: %s\n", usbd_errstr(status));
1550dfd9
MD
677 if (status == USBD_STALLED)
678 usbd_clear_endpoint_stall(sc->axe_ep[AXE_ENDPT_TX]);
78195a76 679 lwkt_serialize_exit(ifp->if_serializer);
1550dfd9
MD
680 return;
681 }
682
683 ifp->if_timer = 0;
684 ifp->if_flags &= ~IFF_OACTIVE;
685 usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &err);
686
687 if (c->axe_mbuf != NULL) {
ca3f7aba 688 m_freem(c->axe_mbuf);
1550dfd9
MD
689 c->axe_mbuf = NULL;
690 }
691
692 if (err)
693 ifp->if_oerrors++;
694 else
695 ifp->if_opackets++;
696
ca3f7aba 697 if (!ifq_is_empty(&ifp->if_snd))
9db4b353
SZ
698 if_devstart(ifp);
699
78195a76 700 lwkt_serialize_exit(ifp->if_serializer);
1550dfd9
MD
701}
702
6ed427ca 703static void
1550dfd9
MD
704axe_tick(void *xsc)
705{
78bd77df
JS
706 struct axe_softc *sc = xsc;
707 struct ifnet *ifp = &sc->arpcom.ac_if;
1550dfd9 708 struct mii_data *mii;
1550dfd9 709
1550dfd9 710 mii = GET_MII(sc);
730f2253 711 if (mii == NULL)
1550dfd9 712 return;
730f2253 713
78195a76 714 lwkt_serialize_enter(ifp->if_serializer);
1550dfd9
MD
715 mii_tick(mii);
716 if (!sc->axe_link && mii->mii_media_status & IFM_ACTIVE &&
717 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
718 sc->axe_link++;
50e6530b 719 if (!ifq_is_empty(&ifp->if_snd))
9db4b353 720 if_devstart(ifp);
1550dfd9 721 }
730f2253 722 callout_reset(&sc->axe_stat_timer, hz, axe_tick, sc);
78195a76 723 lwkt_serialize_exit(ifp->if_serializer);
1550dfd9
MD
724}
725
6ed427ca 726static int
1550dfd9
MD
727axe_encap(struct axe_softc *sc, struct mbuf *m, int idx)
728{
729 struct axe_chain *c;
730 usbd_status err;
731
732 c = &sc->axe_cdata.axe_tx_chain[idx];
733
734 /*
735 * Copy the mbuf data into a contiguous buffer, leaving two
736 * bytes at the beginning to hold the frame length.
737 */
738 m_copydata(m, 0, m->m_pkthdr.len, c->axe_buf);
739 c->axe_mbuf = m;
740
741 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_TX],
892720e4
SZ
742 c, c->axe_buf, m->m_pkthdr.len, USBD_FORCE_SHORT_XFER,
743 10000, axe_txeof);
1550dfd9
MD
744
745 /* Transmit */
746 err = usbd_transfer(c->axe_xfer);
747 if (err != USBD_IN_PROGRESS) {
748 axe_stop(sc);
749 return(EIO);
750 }
751
752 sc->axe_cdata.axe_tx_cnt++;
753
754 return(0);
755}
756
6ed427ca 757static void
1550dfd9
MD
758axe_start(struct ifnet *ifp)
759{
78bd77df
JS
760 struct axe_softc *sc = ifp->if_softc;
761 struct mbuf *m_head = NULL;
1550dfd9 762
1550dfd9 763 if (!sc->axe_link) {
9db4b353 764 ifq_purge(&ifp->if_snd);
1550dfd9
MD
765 return;
766 }
767
768 if (ifp->if_flags & IFF_OACTIVE) {
1550dfd9
MD
769 return;
770 }
771
9db4b353
SZ
772 m_head = ifq_dequeue(&ifp->if_snd, NULL);
773 if (m_head == NULL)
1550dfd9 774 return;
1550dfd9
MD
775
776 if (axe_encap(sc, m_head, 0)) {
9db4b353 777 /* axe_encap() will free m_head, if we reach here */
1550dfd9 778 ifp->if_flags |= IFF_OACTIVE;
1550dfd9
MD
779 return;
780 }
781
782 /*
783 * If there's a BPF listener, bounce a copy of this frame
784 * to him.
785 */
786 BPF_MTAP(ifp, m_head);
787
788 ifp->if_flags |= IFF_OACTIVE;
789
790 /*
791 * Set a timeout in case the chip goes out to lunch.
792 */
793 ifp->if_timer = 5;
1550dfd9
MD
794}
795
6ed427ca 796static void
1550dfd9
MD
797axe_init(void *xsc)
798{
799 struct axe_softc *sc = xsc;
800 struct ifnet *ifp = &sc->arpcom.ac_if;
801 struct axe_chain *c;
802 usbd_status err;
78bd77df 803 int i, rxmode;
1550dfd9 804
78bd77df 805 if (ifp->if_flags & IFF_RUNNING) {
78bd77df
JS
806 return;
807 }
1550dfd9
MD
808
809 /*
810 * Cancel pending I/O and free all RX/TX buffers.
811 */
812
813 axe_reset(sc);
814
815#ifdef notdef
816 /* Set MAC address */
817 axe_mac(sc, sc->arpcom.ac_enaddr, 1);
818#endif
819
820 /* Enable RX logic. */
821
822 /* Init TX ring. */
823 if (axe_tx_list_init(sc) == ENOBUFS) {
70eac22b 824 if_printf(ifp, "tx list init failed\n");
1550dfd9
MD
825 return;
826 }
827
828 /* Init RX ring. */
829 if (axe_rx_list_init(sc) == ENOBUFS) {
70eac22b 830 if_printf(ifp, "rx list init failed\n");
1550dfd9
MD
831 return;
832 }
833
834 /* Set transmitter IPG values */
835 axe_cmd(sc, AXE_CMD_WRITE_IPG0, 0, sc->axe_ipgs[0], NULL);
836 axe_cmd(sc, AXE_CMD_WRITE_IPG1, 0, sc->axe_ipgs[1], NULL);
837 axe_cmd(sc, AXE_CMD_WRITE_IPG2, 0, sc->axe_ipgs[2], NULL);
838
839 /* Enable receiver, set RX mode */
840 rxmode = AXE_RXCMD_UNICAST|AXE_RXCMD_MULTICAST|AXE_RXCMD_ENABLE;
841
842 /* If we want promiscuous mode, set the allframes bit. */
843 if (ifp->if_flags & IFF_PROMISC)
844 rxmode |= AXE_RXCMD_PROMISC;
845
846 if (ifp->if_flags & IFF_BROADCAST)
847 rxmode |= AXE_RXCMD_BROADCAST;
848
849 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL);
850
851 /* Load the multicast filter. */
852 axe_setmulti(sc);
853
854 /* Open RX and TX pipes. */
855 err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_RX],
856 USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_RX]);
857 if (err) {
70eac22b 858 if_printf(ifp, "open rx pipe failed: %s\n", usbd_errstr(err));
1550dfd9
MD
859 return;
860 }
861
862 err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_TX],
863 USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_TX]);
864 if (err) {
70eac22b 865 if_printf(ifp, "open tx pipe failed: %s\n", usbd_errstr(err));
1550dfd9
MD
866 return;
867 }
868
869 /* Start up the receive pipe. */
870 for (i = 0; i < AXE_RX_LIST_CNT; i++) {
871 c = &sc->axe_cdata.axe_rx_chain[i];
872 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX],
873 c, mtod(c->axe_mbuf, char *), AXE_BUFSZ,
874 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, axe_rxeof);
875 usbd_transfer(c->axe_xfer);
876 }
877
878 ifp->if_flags |= IFF_RUNNING;
879 ifp->if_flags &= ~IFF_OACTIVE;
880
730f2253 881 callout_reset(&sc->axe_stat_timer, hz, axe_tick, sc);
1550dfd9
MD
882}
883
6ed427ca 884static int
730f2253 885axe_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
1550dfd9
MD
886{
887 struct axe_softc *sc = ifp->if_softc;
888 struct ifreq *ifr = (struct ifreq *)data;
889 struct mii_data *mii;
890 u_int16_t rxmode;
78bd77df 891 int error = 0;
730f2253 892
1550dfd9
MD
893 switch(command) {
894 case SIOCSIFFLAGS:
895 if (ifp->if_flags & IFF_UP) {
896 if (ifp->if_flags & IFF_RUNNING &&
897 ifp->if_flags & IFF_PROMISC &&
898 !(sc->axe_if_flags & IFF_PROMISC)) {
1550dfd9
MD
899 axe_cmd(sc, AXE_CMD_RXCTL_READ,
900 0, 0, (void *)&rxmode);
901 rxmode |= AXE_RXCMD_PROMISC;
902 axe_cmd(sc, AXE_CMD_RXCTL_WRITE,
903 0, rxmode, NULL);
1550dfd9
MD
904 axe_setmulti(sc);
905 } else if (ifp->if_flags & IFF_RUNNING &&
906 !(ifp->if_flags & IFF_PROMISC) &&
907 sc->axe_if_flags & IFF_PROMISC) {
1550dfd9
MD
908 axe_cmd(sc, AXE_CMD_RXCTL_READ,
909 0, 0, (void *)&rxmode);
910 rxmode &= ~AXE_RXCMD_PROMISC;
911 axe_cmd(sc, AXE_CMD_RXCTL_WRITE,
912 0, rxmode, NULL);
1550dfd9
MD
913 axe_setmulti(sc);
914 } else if (!(ifp->if_flags & IFF_RUNNING))
915 axe_init(sc);
916 } else {
917 if (ifp->if_flags & IFF_RUNNING)
918 axe_stop(sc);
919 }
920 sc->axe_if_flags = ifp->if_flags;
921 error = 0;
922 break;
923 case SIOCADDMULTI:
924 case SIOCDELMULTI:
925 axe_setmulti(sc);
926 error = 0;
927 break;
928 case SIOCGIFMEDIA:
929 case SIOCSIFMEDIA:
930 mii = GET_MII(sc);
931 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
932 break;
933
934 default:
935 error = ether_ioctl(ifp, command, data);
936 break;
937 }
1550dfd9
MD
938 return(error);
939}
940
6ed427ca 941static void
1550dfd9
MD
942axe_watchdog(struct ifnet *ifp)
943{
78bd77df
JS
944 struct axe_softc *sc = ifp->if_softc;
945 struct axe_chain *c;
946 usbd_status stat;
1550dfd9 947
1550dfd9 948 ifp->if_oerrors++;
70eac22b 949 if_printf(ifp, "watchdog timeout\n");
1550dfd9
MD
950
951 c = &sc->axe_cdata.axe_tx_chain[0];
952 usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &stat);
953 axe_txeof(c->axe_xfer, c, stat);
954
50e6530b 955 if (!ifq_is_empty(&ifp->if_snd))
9db4b353 956 if_devstart(ifp);
1550dfd9
MD
957}
958
959/*
960 * Stop the adapter and free any mbufs allocated to the
961 * RX and TX lists.
962 */
6ed427ca 963static void
1550dfd9
MD
964axe_stop(struct axe_softc *sc)
965{
966 usbd_status err;
967 struct ifnet *ifp;
78bd77df 968 int i;
1550dfd9 969
1550dfd9
MD
970 ifp = &sc->arpcom.ac_if;
971 ifp->if_timer = 0;
972
730f2253 973 callout_stop(&sc->axe_stat_timer);
1550dfd9
MD
974
975 /* Stop transfers. */
976 if (sc->axe_ep[AXE_ENDPT_RX] != NULL) {
977 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]);
978 if (err) {
70eac22b
JS
979 if_printf(ifp, "abort rx pipe failed: %s\n",
980 usbd_errstr(err));
1550dfd9
MD
981 }
982 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_RX]);
983 if (err) {
70eac22b
JS
984 if_printf(ifp, "close rx pipe failed: %s\n",
985 usbd_errstr(err));
1550dfd9
MD
986 }
987 sc->axe_ep[AXE_ENDPT_RX] = NULL;
988 }
989
990 if (sc->axe_ep[AXE_ENDPT_TX] != NULL) {
991 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]);
992 if (err) {
70eac22b
JS
993 if_printf(ifp, "abort tx pipe failed: %s\n",
994 usbd_errstr(err));
1550dfd9
MD
995 }
996 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_TX]);
997 if (err) {
70eac22b
JS
998 if_printf(ifp, "close tx pipe failed: %s\n",
999 usbd_errstr(err));
1550dfd9
MD
1000 }
1001 sc->axe_ep[AXE_ENDPT_TX] = NULL;
1002 }
1003
1004 if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) {
1005 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
1006 if (err) {
70eac22b
JS
1007 if_printf(ifp, "abort intr pipe failed: %s\n",
1008 usbd_errstr(err));
1550dfd9
MD
1009 }
1010 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_INTR]);
1011 if (err) {
70eac22b
JS
1012 if_printf(ifp, "close intr pipe failed: %s\n",
1013 usbd_errstr(err));
1550dfd9
MD
1014 }
1015 sc->axe_ep[AXE_ENDPT_INTR] = NULL;
1016 }
1017
9c88e817
SZ
1018 axe_reset(sc);
1019
1550dfd9
MD
1020 /* Free RX resources. */
1021 for (i = 0; i < AXE_RX_LIST_CNT; i++) {
1022 if (sc->axe_cdata.axe_rx_chain[i].axe_buf != NULL) {
efda3bd0 1023 kfree(sc->axe_cdata.axe_rx_chain[i].axe_buf, M_USBDEV);
1550dfd9
MD
1024 sc->axe_cdata.axe_rx_chain[i].axe_buf = NULL;
1025 }
1026 if (sc->axe_cdata.axe_rx_chain[i].axe_mbuf != NULL) {
1027 m_freem(sc->axe_cdata.axe_rx_chain[i].axe_mbuf);
1028 sc->axe_cdata.axe_rx_chain[i].axe_mbuf = NULL;
1029 }
1030 if (sc->axe_cdata.axe_rx_chain[i].axe_xfer != NULL) {
1031 usbd_free_xfer(sc->axe_cdata.axe_rx_chain[i].axe_xfer);
1032 sc->axe_cdata.axe_rx_chain[i].axe_xfer = NULL;
1033 }
1034 }
1035
1036 /* Free TX resources. */
1037 for (i = 0; i < AXE_TX_LIST_CNT; i++) {
1038 if (sc->axe_cdata.axe_tx_chain[i].axe_buf != NULL) {
efda3bd0 1039 kfree(sc->axe_cdata.axe_tx_chain[i].axe_buf, M_USBDEV);
1550dfd9
MD
1040 sc->axe_cdata.axe_tx_chain[i].axe_buf = NULL;
1041 }
1042 if (sc->axe_cdata.axe_tx_chain[i].axe_mbuf != NULL) {
1043 m_freem(sc->axe_cdata.axe_tx_chain[i].axe_mbuf);
1044 sc->axe_cdata.axe_tx_chain[i].axe_mbuf = NULL;
1045 }
1046 if (sc->axe_cdata.axe_tx_chain[i].axe_xfer != NULL) {
1047 usbd_free_xfer(sc->axe_cdata.axe_tx_chain[i].axe_xfer);
1048 sc->axe_cdata.axe_tx_chain[i].axe_xfer = NULL;
1049 }
1050 }
1051
1052 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
1053 sc->axe_link = 0;
1550dfd9
MD
1054}
1055
1056/*
1057 * Stop all chip I/O so that the kernel's probe routines don't
1058 * get confused by errant DMAs when rebooting.
1059 */
6ed427ca
HT
1060static void
1061axe_shutdown(device_t dev)
1550dfd9
MD
1062{
1063 struct axe_softc *sc;
1064
1065 sc = device_get_softc(dev);
1066
1067 axe_stop(sc);
1550dfd9 1068}