1 /* $NetBSD: if_axe.c,v 1.30 2009/12/06 20:20:12 dyoung Exp $ */ 2 3 /* 4 * Copyright (c) 1997, 1998, 1999, 2000-2003 5 * Bill Paul <wpaul@windriver.com>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 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 * (also http://people.freebsd.org/~wpaul/ASIX/Ax88172.PDF) 42 * Note: you need the manual for the AX88170 chip (USB 1.x ethernet 43 * controller) to find the definitions for the RX control register. 44 * http://www.asix.com.tw/datasheet/mac/Ax88170.PDF 45 * 46 * Written by Bill Paul <wpaul@windriver.com> 47 * Senior Engineer 48 * Wind River Systems 49 */ 50 51 /* 52 * The AX88172 provides USB ethernet supports at 10 and 100Mbps. 53 * It uses an external PHY (reference designs use a RealTek chip), 54 * and has a 64-bit multicast hash filter. There is some information 55 * missing from the manual which one needs to know in order to make 56 * the chip function: 57 * 58 * - You must set bit 7 in the RX control register, otherwise the 59 * chip won't receive any packets. 60 * - You must initialize all 3 IPG registers, or you won't be able 61 * to send any packets. 62 * 63 * Note that this device appears to only support loading the station 64 * address via autload from the EEPROM (i.e. there's no way to manaully 65 * set it). 66 * 67 * (Adam Weinberger wanted me to name this driver if_gir.c.) 68 */ 69 70 /* 71 * Ported to OpenBSD 3/28/2004 by Greg Taleck <taleck@oz.net> 72 * with bits and pieces from the aue and url drivers. 73 */ 74 75 #include <sys/cdefs.h> 76 __KERNEL_RCSID(0, "$NetBSD: if_axe.c,v 1.30 2009/12/06 20:20:12 dyoung Exp $"); 77 78 #if defined(__NetBSD__) 79 #include "opt_inet.h" 80 #include "rnd.h" 81 #endif 82 83 #include "bpfilter.h" 84 85 #include <sys/param.h> 86 #include <sys/systm.h> 87 #include <sys/sockio.h> 88 #include <sys/mutex.h> 89 #include <sys/mbuf.h> 90 #include <sys/kernel.h> 91 #if defined(__OpenBSD__) 92 #include <sys/proc.h> 93 #endif 94 #include <sys/socket.h> 95 96 #include <sys/device.h> 97 #if NRND > 0 98 #include <sys/rnd.h> 99 #endif 100 101 #include <net/if.h> 102 #if defined(__NetBSD__) 103 #include <net/if_arp.h> 104 #endif 105 #include <net/if_dl.h> 106 #include <net/if_media.h> 107 108 #define BPF_MTAP(ifp, m) bpf_mtap((ifp)->if_bpf, (m)) 109 110 #if NBPFILTER > 0 111 #include <net/bpf.h> 112 #endif 113 114 #if defined(__NetBSD__) 115 #include <net/if_ether.h> 116 #ifdef INET 117 #include <netinet/in.h> 118 #include <netinet/if_inarp.h> 119 #endif 120 #endif /* defined(__NetBSD__) */ 121 122 #if defined(__OpenBSD__) 123 #ifdef INET 124 #include <netinet/in.h> 125 #include <netinet/in_systm.h> 126 #include <netinet/in_var.h> 127 #include <netinet/ip.h> 128 #include <netinet/if_ether.h> 129 #endif 130 #endif /* defined(__OpenBSD__) */ 131 132 133 #include <dev/mii/mii.h> 134 #include <dev/mii/miivar.h> 135 136 #include <dev/usb/usb.h> 137 #include <dev/usb/usbdi.h> 138 #include <dev/usb/usbdi_util.h> 139 #include <dev/usb/usbdevs.h> 140 141 #include <dev/usb/if_axereg.h> 142 143 #ifdef AXE_DEBUG 144 #define DPRINTF(x) do { if (axedebug) logprintf x; } while (0) 145 #define DPRINTFN(n,x) do { if (axedebug >= (n)) logprintf x; } while (0) 146 int axedebug = 0; 147 #else 148 #define DPRINTF(x) 149 #define DPRINTFN(n,x) 150 #endif 151 152 /* 153 * Various supported device vendors/products. 154 */ 155 Static const struct axe_type axe_devs[] = { 156 { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88172}, 0 }, 157 { { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB2_TX }, 0}, 158 { { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUBE100}, 0 }, 159 { { USB_VENDOR_LINKSYS2, USB_PRODUCT_LINKSYS2_USB200M}, 0 }, 160 { { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAU2KTX}, 0 }, 161 { { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_FA120}, 0 }, 162 { { USB_VENDOR_SITECOM, USB_PRODUCT_SITECOM_LN029}, 0 }, 163 { { USB_VENDOR_SYSTEMTALKS, USB_PRODUCT_SYSTEMTALKS_SGCX2UL}, 0 }, 164 }; 165 #define axe_lookup(v, p) ((const struct axe_type *)usb_lookup(axe_devs, v, p)) 166 167 int axe_match(device_t, cfdata_t, void *); 168 void axe_attach(device_t, device_t, void *); 169 int axe_detach(device_t, int); 170 int axe_activate(device_t, enum devact); 171 extern struct cfdriver axe_cd; 172 CFATTACH_DECL_NEW(axe, sizeof(struct axe_softc), axe_match, axe_attach, 173 axe_detach, axe_activate); 174 175 Static int axe_tx_list_init(struct axe_softc *); 176 Static int axe_rx_list_init(struct axe_softc *); 177 Static int axe_newbuf(struct axe_softc *, struct axe_chain *, struct mbuf *); 178 Static int axe_encap(struct axe_softc *, struct mbuf *, int); 179 Static void axe_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 180 Static void axe_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 181 Static void axe_tick(void *); 182 Static void axe_tick_task(void *); 183 #if 0 184 Static void axe_rxstart(struct ifnet *); 185 #endif 186 Static void axe_start(struct ifnet *); 187 Static int axe_ioctl(struct ifnet *, u_long, void *); 188 Static void axe_init(void *); 189 Static void axe_stop(struct axe_softc *); 190 Static void axe_watchdog(struct ifnet *); 191 Static int axe_miibus_readreg(device_t, int, int); 192 Static void axe_miibus_writereg(device_t, int, int, int); 193 Static void axe_miibus_statchg(device_t); 194 Static int axe_cmd(struct axe_softc *, int, int, int, void *); 195 Static void axe_reset(struct axe_softc *sc); 196 197 Static void axe_setmulti(struct axe_softc *); 198 Static void axe_lock_mii(struct axe_softc *sc); 199 Static void axe_unlock_mii(struct axe_softc *sc); 200 201 /* Get exclusive access to the MII registers */ 202 Static void 203 axe_lock_mii(struct axe_softc *sc) 204 { 205 sc->axe_refcnt++; 206 mutex_enter(&sc->axe_mii_lock); 207 } 208 209 Static void 210 axe_unlock_mii(struct axe_softc *sc) 211 { 212 mutex_exit(&sc->axe_mii_lock); 213 if (--sc->axe_refcnt < 0) 214 usb_detach_wakeup((sc->axe_dev)); 215 } 216 217 Static int 218 axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf) 219 { 220 usb_device_request_t req; 221 usbd_status err; 222 223 KASSERT(mutex_owned(&sc->axe_mii_lock)); 224 225 if (sc->axe_dying) 226 return(0); 227 228 if (AXE_CMD_DIR(cmd)) 229 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 230 else 231 req.bmRequestType = UT_READ_VENDOR_DEVICE; 232 req.bRequest = AXE_CMD_CMD(cmd); 233 USETW(req.wValue, val); 234 USETW(req.wIndex, index); 235 USETW(req.wLength, AXE_CMD_LEN(cmd)); 236 237 err = usbd_do_request(sc->axe_udev, &req, buf); 238 239 if (err) 240 return(-1); 241 242 return(0); 243 } 244 245 Static int 246 axe_miibus_readreg(device_t dev, int phy, int reg) 247 { 248 struct axe_softc *sc = device_private(dev); 249 usbd_status err; 250 u_int16_t val; 251 252 if (sc->axe_dying) { 253 DPRINTF(("axe: dying\n")); 254 return(0); 255 } 256 257 #ifdef notdef 258 /* 259 * The chip tells us the MII address of any supported 260 * PHYs attached to the chip, so only read from those. 261 */ 262 263 if (sc->axe_phyaddrs[0] != AXE_NOPHY && phy != sc->axe_phyaddrs[0]) 264 return (0); 265 266 if (sc->axe_phyaddrs[1] != AXE_NOPHY && phy != sc->axe_phyaddrs[1]) 267 return (0); 268 #endif 269 if (sc->axe_phyaddrs[0] != 0xFF && sc->axe_phyaddrs[0] != phy) 270 return (0); 271 272 val = 0; 273 274 axe_lock_mii(sc); 275 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); 276 err = axe_cmd(sc, AXE_CMD_MII_READ_REG, reg, phy, (void *)&val); 277 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); 278 axe_unlock_mii(sc); 279 280 if (err) { 281 aprint_error_dev(sc->axe_dev, "read PHY failed\n"); 282 return(-1); 283 } 284 285 if (val) 286 sc->axe_phyaddrs[0] = phy; 287 288 return (le16toh(val)); 289 } 290 291 Static void 292 axe_miibus_writereg(device_t dev, int phy, int reg, int aval) 293 { 294 struct axe_softc *sc = device_private(dev); 295 usbd_status err; 296 u_int16_t val; 297 298 if (sc->axe_dying) 299 return; 300 301 val = htole16(aval); 302 axe_lock_mii(sc); 303 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); 304 err = axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, (void *)&val); 305 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); 306 axe_unlock_mii(sc); 307 308 if (err) { 309 aprint_error_dev(sc->axe_dev, "write PHY failed\n"); 310 return; 311 } 312 } 313 314 Static void 315 axe_miibus_statchg(device_t dev) 316 { 317 struct axe_softc *sc = device_private(dev); 318 struct mii_data *mii = GET_MII(sc); 319 int val, err; 320 321 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 322 val = AXE_MEDIA_FULL_DUPLEX; 323 else 324 val = 0; 325 DPRINTF(("axe_miibus_statchg: val=0x%x\n", val)); 326 axe_lock_mii(sc); 327 err = axe_cmd(sc, AXE_CMD_WRITE_MEDIA, 0, val, NULL); 328 axe_unlock_mii(sc); 329 if (err) { 330 aprint_error_dev(sc->axe_dev, "media change failed\n"); 331 return; 332 } 333 } 334 335 Static void 336 axe_setmulti(struct axe_softc *sc) 337 { 338 struct ifnet *ifp; 339 struct ether_multi *enm; 340 struct ether_multistep step; 341 u_int32_t h = 0; 342 u_int16_t rxmode; 343 u_int8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 344 345 if (sc->axe_dying) 346 return; 347 348 ifp = GET_IFP(sc); 349 350 axe_lock_mii(sc); 351 axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, (void *)&rxmode); 352 rxmode = le16toh(rxmode); 353 354 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 355 allmulti: 356 rxmode |= AXE_RXCMD_ALLMULTI; 357 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 358 return; 359 } else 360 rxmode &= ~AXE_RXCMD_ALLMULTI; 361 362 /* now program new ones */ 363 #if defined(__NetBSD__) 364 ETHER_FIRST_MULTI(step, &sc->axe_ec, enm); 365 #else 366 ETHER_FIRST_MULTI(step, &sc->arpcom, enm); 367 #endif 368 while (enm != NULL) { 369 if (memcmp(enm->enm_addrlo, enm->enm_addrhi, 370 ETHER_ADDR_LEN) != 0) 371 goto allmulti; 372 373 h = ether_crc32_be(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26; 374 hashtbl[h / 8] |= 1 << (h % 8); 375 ETHER_NEXT_MULTI(step, enm); 376 } 377 378 ifp->if_flags &= ~IFF_ALLMULTI; 379 axe_cmd(sc, AXE_CMD_WRITE_MCAST, 0, 0, (void *)&hashtbl); 380 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 381 axe_unlock_mii(sc); 382 return; 383 } 384 385 Static void 386 axe_reset(struct axe_softc *sc) 387 { 388 if (sc->axe_dying) 389 return; 390 /* XXX What to reset? */ 391 392 /* Wait a little while for the chip to get its brains in order. */ 393 DELAY(1000); 394 return; 395 } 396 397 /* 398 * Probe for a AX88172 chip. 399 */ 400 int 401 axe_match(device_t parent, cfdata_t match, void *aux) 402 { 403 struct usb_attach_arg *uaa = aux; 404 405 return (axe_lookup(uaa->vendor, uaa->product) != NULL ? 406 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 407 } 408 409 /* 410 * Attach the interface. Allocate softc structures, do ifmedia 411 * setup and ethernet/BPF attach. 412 */ 413 void 414 axe_attach(device_t parent, device_t self, void *aux) 415 { 416 struct axe_softc *sc = device_private(self); 417 struct usb_attach_arg *uaa = aux; 418 usbd_device_handle dev = uaa->device; 419 usbd_status err; 420 usb_interface_descriptor_t *id; 421 usb_endpoint_descriptor_t *ed; 422 struct mii_data *mii; 423 u_char eaddr[ETHER_ADDR_LEN]; 424 char *devinfop; 425 const char *devname = device_xname(self); 426 struct ifnet *ifp; 427 int i, s; 428 429 sc->axe_dev = self; 430 431 aprint_naive("\n"); 432 aprint_normal("\n"); 433 434 devinfop = usbd_devinfo_alloc(dev, 0); 435 aprint_normal_dev(self, "%s\n", devinfop); 436 usbd_devinfo_free(devinfop); 437 438 err = usbd_set_config_no(dev, AXE_CONFIG_NO, 1); 439 if (err) { 440 aprint_error_dev(self, "getting interface handle failed\n"); 441 return; 442 } 443 444 usb_init_task(&sc->axe_tick_task, axe_tick_task, sc); 445 mutex_init(&sc->axe_mii_lock, MUTEX_DEFAULT, IPL_NONE); 446 usb_init_task(&sc->axe_stop_task, (void (*)(void *))axe_stop, sc); 447 448 err = usbd_device2interface_handle(dev, AXE_IFACE_IDX, &sc->axe_iface); 449 if (err) { 450 aprint_error_dev(self, "getting interface handle failed\n"); 451 return; 452 } 453 454 sc->axe_udev = dev; 455 sc->axe_product = uaa->product; 456 sc->axe_vendor = uaa->vendor; 457 458 id = usbd_get_interface_descriptor(sc->axe_iface); 459 460 /* Find endpoints. */ 461 for (i = 0; i < id->bNumEndpoints; i++) { 462 ed = usbd_interface2endpoint_descriptor(sc->axe_iface, i); 463 if (!ed) { 464 aprint_error_dev(self, "couldn't get ep %d\n", i); 465 return; 466 } 467 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 468 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 469 sc->axe_ed[AXE_ENDPT_RX] = ed->bEndpointAddress; 470 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 471 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 472 sc->axe_ed[AXE_ENDPT_TX] = ed->bEndpointAddress; 473 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 474 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 475 sc->axe_ed[AXE_ENDPT_INTR] = ed->bEndpointAddress; 476 } 477 } 478 479 s = splnet(); 480 481 /* 482 * Get station address. 483 */ 484 axe_lock_mii(sc); 485 axe_cmd(sc, AXE_CMD_READ_NODEID, 0, 0, &eaddr); 486 487 /* 488 * Load IPG values and PHY indexes. 489 */ 490 axe_cmd(sc, AXE_CMD_READ_IPG012, 0, 0, (void *)&sc->axe_ipgs); 491 axe_cmd(sc, AXE_CMD_READ_PHYID, 0, 0, (void *)&sc->axe_phyaddrs); 492 axe_unlock_mii(sc); 493 494 /* 495 * Work around broken adapters that appear to lie about 496 * their PHY addresses. 497 */ 498 sc->axe_phyaddrs[0] = sc->axe_phyaddrs[1] = 0xFF; 499 500 /* 501 * An ASIX chip was detected. Inform the world. 502 */ 503 aprint_normal_dev(self, "Ethernet address %s\n", 504 ether_sprintf(eaddr)); 505 506 /* Initialize interface info.*/ 507 ifp = GET_IFP(sc); 508 ifp->if_softc = sc; 509 strncpy(ifp->if_xname, devname, IFNAMSIZ); 510 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 511 ifp->if_ioctl = axe_ioctl; 512 ifp->if_start = axe_start; 513 514 ifp->if_watchdog = axe_watchdog; 515 516 /* ifp->if_baudrate = 10000000; */ 517 /* ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;*/ 518 519 IFQ_SET_READY(&ifp->if_snd); 520 521 /* Initialize MII/media info. */ 522 mii = &sc->axe_mii; 523 mii->mii_ifp = ifp; 524 mii->mii_readreg = axe_miibus_readreg; 525 mii->mii_writereg = axe_miibus_writereg; 526 mii->mii_statchg = axe_miibus_statchg; 527 mii->mii_flags = MIIF_AUTOTSLEEP; 528 529 sc->axe_ec.ec_mii = mii; 530 ifmedia_init(&mii->mii_media, 0, ether_mediachange, ether_mediastatus); 531 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); 532 533 if (LIST_EMPTY(&mii->mii_phys)) { 534 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); 535 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); 536 } else 537 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 538 539 /* Attach the interface. */ 540 if_attach(ifp); 541 ether_ifattach(ifp, eaddr); 542 #if NRND > 0 543 rnd_attach_source(&sc->rnd_source, device_xname(sc->axe_dev), 544 RND_TYPE_NET, 0); 545 #endif 546 547 callout_init(&(sc->axe_stat_ch), 0); 548 549 sc->axe_attached = 1; 550 splx(s); 551 552 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->axe_udev, sc->axe_dev); 553 554 return; 555 } 556 557 int 558 axe_detach(device_t self, int flags) 559 { 560 struct axe_softc *sc = device_private(self); 561 int s; 562 struct ifnet *ifp = GET_IFP(sc); 563 564 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 565 566 /* Detached before attached finished, so just bail out. */ 567 if (!sc->axe_attached) 568 return (0); 569 570 callout_stop(&(sc->axe_stat_ch)); 571 572 sc->axe_dying = 1; 573 574 ether_ifdetach(ifp); 575 576 if (sc->axe_ep[AXE_ENDPT_TX] != NULL) 577 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]); 578 if (sc->axe_ep[AXE_ENDPT_RX] != NULL) 579 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]); 580 if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) 581 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]); 582 583 /* 584 * Remove any pending tasks. They cannot be executing because they run 585 * in the same thread as detach. 586 */ 587 usb_rem_task(sc->axe_udev, &sc->axe_tick_task); 588 usb_rem_task(sc->axe_udev, &sc->axe_stop_task); 589 590 s = splusb(); 591 592 if (--sc->axe_refcnt >= 0) { 593 /* Wait for processes to go away */ 594 usb_detach_wait((sc->axe_dev)); 595 } 596 597 if (ifp->if_flags & IFF_RUNNING) 598 axe_stop(sc); 599 600 #if defined(__NetBSD__) 601 #if NRND > 0 602 rnd_detach_source(&sc->rnd_source); 603 #endif 604 #endif /* __NetBSD__ */ 605 mii_detach(&sc->axe_mii, MII_PHY_ANY, MII_OFFSET_ANY); 606 ifmedia_delete_instance(&sc->axe_mii.mii_media, IFM_INST_ANY); 607 ether_ifdetach(ifp); 608 if_detach(ifp); 609 610 #ifdef DIAGNOSTIC 611 if (sc->axe_ep[AXE_ENDPT_TX] != NULL || 612 sc->axe_ep[AXE_ENDPT_RX] != NULL || 613 sc->axe_ep[AXE_ENDPT_INTR] != NULL) 614 aprint_debug_dev(self, "detach has active endpoints\n"); 615 #endif 616 617 sc->axe_attached = 0; 618 619 if (--sc->axe_refcnt >= 0) { 620 /* Wait for processes to go away. */ 621 usb_detach_wait((sc->axe_dev)); 622 } 623 splx(s); 624 625 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->axe_udev, sc->axe_dev); 626 627 return (0); 628 } 629 630 int 631 axe_activate(device_t self, enum devact act) 632 { 633 struct axe_softc *sc = device_private(self); 634 635 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 636 637 switch (act) { 638 case DVACT_DEACTIVATE: 639 if_deactivate(&sc->axe_ec.ec_if); 640 sc->axe_dying = 1; 641 return 0; 642 default: 643 return EOPNOTSUPP; 644 } 645 } 646 647 /* 648 * Initialize an RX descriptor and attach an MBUF cluster. 649 */ 650 Static int 651 axe_newbuf(struct axe_softc *sc, struct axe_chain *c, struct mbuf *m) 652 { 653 struct mbuf *m_new = NULL; 654 655 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev),__func__)); 656 657 if (m == NULL) { 658 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 659 if (m_new == NULL) { 660 aprint_error_dev(sc->axe_dev, "no memory for rx list " 661 "-- packet dropped!\n"); 662 return (ENOBUFS); 663 } 664 665 MCLGET(m_new, M_DONTWAIT); 666 if (!(m_new->m_flags & M_EXT)) { 667 aprint_error_dev(sc->axe_dev, "no memory for rx list " 668 "-- packet dropped!\n"); 669 m_freem(m_new); 670 return (ENOBUFS); 671 } 672 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 673 } else { 674 m_new = m; 675 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 676 m_new->m_data = m_new->m_ext.ext_buf; 677 } 678 679 m_adj(m_new, ETHER_ALIGN); 680 c->axe_mbuf = m_new; 681 682 return (0); 683 } 684 685 Static int 686 axe_rx_list_init(struct axe_softc *sc) 687 { 688 struct axe_cdata *cd; 689 struct axe_chain *c; 690 int i; 691 692 DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 693 694 cd = &sc->axe_cdata; 695 for (i = 0; i < AXE_RX_LIST_CNT; i++) { 696 c = &cd->axe_rx_chain[i]; 697 c->axe_sc = sc; 698 c->axe_idx = i; 699 if (axe_newbuf(sc, c, NULL) == ENOBUFS) 700 return (ENOBUFS); 701 if (c->axe_xfer == NULL) { 702 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev); 703 if (c->axe_xfer == NULL) 704 return (ENOBUFS); 705 c->axe_buf = usbd_alloc_buffer(c->axe_xfer, AXE_BUFSZ); 706 if (c->axe_buf == NULL) { 707 usbd_free_xfer(c->axe_xfer); 708 return (ENOBUFS); 709 } 710 } 711 } 712 713 return (0); 714 } 715 716 Static int 717 axe_tx_list_init(struct axe_softc *sc) 718 { 719 struct axe_cdata *cd; 720 struct axe_chain *c; 721 int i; 722 723 DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 724 725 cd = &sc->axe_cdata; 726 for (i = 0; i < AXE_TX_LIST_CNT; i++) { 727 c = &cd->axe_tx_chain[i]; 728 c->axe_sc = sc; 729 c->axe_idx = i; 730 c->axe_mbuf = NULL; 731 if (c->axe_xfer == NULL) { 732 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev); 733 if (c->axe_xfer == NULL) 734 return (ENOBUFS); 735 c->axe_buf = usbd_alloc_buffer(c->axe_xfer, AXE_BUFSZ); 736 if (c->axe_buf == NULL) { 737 usbd_free_xfer(c->axe_xfer); 738 return (ENOBUFS); 739 } 740 } 741 } 742 743 return (0); 744 } 745 746 #if 0 747 Static void 748 axe_rxstart(struct ifnet *ifp) 749 { 750 struct axe_softc *sc; 751 struct axe_chain *c; 752 753 sc = ifp->if_softc; 754 axe_lock_mii(sc); 755 c = &sc->axe_cdata.axe_rx_chain[sc->axe_cdata.axe_rx_prod]; 756 757 if (axe_newbuf(sc, c, NULL) == ENOBUFS) { 758 ifp->if_ierrors++; 759 axe_unlock_mii(sc); 760 return; 761 } 762 763 /* Setup new transfer. */ 764 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX], 765 c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, USBD_SHORT_XFER_OK, 766 USBD_NO_TIMEOUT, axe_rxeof); 767 usbd_transfer(c->axe_xfer); 768 axe_unlock_mii(sc); 769 770 return; 771 } 772 #endif 773 774 /* 775 * A frame has been uploaded: pass the resulting mbuf chain up to 776 * the higher level protocols. 777 */ 778 Static void 779 axe_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 780 { 781 struct axe_softc *sc; 782 struct axe_chain *c; 783 struct ifnet *ifp; 784 struct mbuf *m; 785 u_int32_t total_len; 786 int s; 787 788 c = priv; 789 sc = c->axe_sc; 790 ifp = GET_IFP(sc); 791 792 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev),__func__)); 793 794 if (sc->axe_dying) 795 return; 796 797 if (!(ifp->if_flags & IFF_RUNNING)) 798 return; 799 800 if (status != USBD_NORMAL_COMPLETION) { 801 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 802 return; 803 if (usbd_ratecheck(&sc->axe_rx_notice)) { 804 printf("%s: usb errors on rx: %s\n", 805 device_xname(sc->axe_dev), usbd_errstr(status)); 806 } 807 if (status == USBD_STALLED) 808 usbd_clear_endpoint_stall_async(sc->axe_ep[AXE_ENDPT_RX]); 809 goto done; 810 } 811 812 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 813 814 m = c->axe_mbuf; 815 816 if (total_len <= sizeof(struct ether_header)) { 817 ifp->if_ierrors++; 818 goto done; 819 } 820 821 ifp->if_ipackets++; 822 m->m_pkthdr.rcvif = ifp; 823 m->m_pkthdr.len = m->m_len = total_len; 824 825 826 memcpy(mtod(c->axe_mbuf, char *), c->axe_buf, total_len); 827 828 /* No errors; receive the packet. */ 829 total_len -= ETHER_CRC_LEN + 4; 830 831 s = splnet(); 832 833 /* XXX ugly */ 834 if (axe_newbuf(sc, c, NULL) == ENOBUFS) { 835 ifp->if_ierrors++; 836 goto done1; 837 } 838 839 #if NBPFILTER > 0 840 if (ifp->if_bpf) 841 BPF_MTAP(ifp, m); 842 #endif 843 844 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->axe_dev), 845 __func__, m->m_len)); 846 (*(ifp)->if_input)((ifp), (m)); 847 done1: 848 splx(s); 849 850 done: 851 852 /* Setup new transfer. */ 853 usbd_setup_xfer(xfer, sc->axe_ep[AXE_ENDPT_RX], 854 c, c->axe_buf, AXE_BUFSZ, 855 USBD_SHORT_XFER_OK | USBD_NO_COPY, 856 USBD_NO_TIMEOUT, axe_rxeof); 857 usbd_transfer(xfer); 858 859 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->axe_dev), 860 __func__)); 861 return; 862 } 863 864 /* 865 * A frame was downloaded to the chip. It's safe for us to clean up 866 * the list buffers. 867 */ 868 869 Static void 870 axe_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, 871 usbd_status status) 872 { 873 struct axe_softc *sc; 874 struct axe_chain *c; 875 struct ifnet *ifp; 876 int s; 877 878 c = priv; 879 sc = c->axe_sc; 880 ifp = GET_IFP(sc); 881 882 if (sc->axe_dying) 883 return; 884 885 s = splnet(); 886 887 if (status != USBD_NORMAL_COMPLETION) { 888 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 889 splx(s); 890 return; 891 } 892 ifp->if_oerrors++; 893 printf("%s: usb error on tx: %s\n", device_xname(sc->axe_dev), 894 usbd_errstr(status)); 895 if (status == USBD_STALLED) 896 usbd_clear_endpoint_stall_async(sc->axe_ep[AXE_ENDPT_TX]); 897 splx(s); 898 return; 899 } 900 901 ifp->if_timer = 0; 902 ifp->if_flags &= ~IFF_OACTIVE; 903 904 m_freem(c->axe_mbuf); 905 c->axe_mbuf = NULL; 906 907 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 908 axe_start(ifp); 909 910 ifp->if_opackets++; 911 splx(s); 912 return; 913 } 914 915 Static void 916 axe_tick(void *xsc) 917 { 918 struct axe_softc *sc = xsc; 919 920 if (sc == NULL) 921 return; 922 923 DPRINTFN(0xff, ("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), 924 __func__)); 925 926 if (sc->axe_dying) 927 return; 928 929 /* Perform periodic stuff in process context */ 930 usb_add_task(sc->axe_udev, &sc->axe_tick_task, USB_TASKQ_DRIVER); 931 932 } 933 934 Static void 935 axe_tick_task(void *xsc) 936 { 937 int s; 938 struct axe_softc *sc; 939 struct ifnet *ifp; 940 struct mii_data *mii; 941 942 sc = xsc; 943 944 if (sc == NULL) 945 return; 946 947 if (sc->axe_dying) 948 return; 949 950 ifp = GET_IFP(sc); 951 mii = GET_MII(sc); 952 if (mii == NULL) 953 return; 954 955 s = splnet(); 956 957 mii_tick(mii); 958 959 callout_reset(&(sc->axe_stat_ch), (hz), (axe_tick), (sc)); 960 961 splx(s); 962 } 963 964 Static int 965 axe_encap(struct axe_softc *sc, struct mbuf *m, int idx) 966 { 967 struct axe_chain *c; 968 usbd_status err; 969 970 c = &sc->axe_cdata.axe_tx_chain[idx]; 971 972 /* 973 * Copy the mbuf data into a contiguous buffer, leaving two 974 * bytes at the beginning to hold the frame length. 975 */ 976 m_copydata(m, 0, m->m_pkthdr.len, c->axe_buf); 977 c->axe_mbuf = m; 978 979 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_TX], 980 c, c->axe_buf, m->m_pkthdr.len, USBD_FORCE_SHORT_XFER, 10000, 981 axe_txeof); 982 983 /* Transmit */ 984 err = usbd_transfer(c->axe_xfer); 985 if (err != USBD_IN_PROGRESS) { 986 axe_stop(sc); 987 return(EIO); 988 } 989 990 sc->axe_cdata.axe_tx_cnt++; 991 992 return(0); 993 } 994 995 Static void 996 axe_start(struct ifnet *ifp) 997 { 998 struct axe_softc *sc; 999 struct mbuf *m_head = NULL; 1000 1001 sc = ifp->if_softc; 1002 1003 if ((ifp->if_flags & (IFF_OACTIVE|IFF_RUNNING)) != IFF_RUNNING) 1004 return; 1005 1006 IF_DEQUEUE(&ifp->if_snd, m_head); 1007 if (m_head == NULL) { 1008 return; 1009 } 1010 1011 if (axe_encap(sc, m_head, 0)) { 1012 IF_PREPEND(&ifp->if_snd, m_head); 1013 ifp->if_flags |= IFF_OACTIVE; 1014 return; 1015 } 1016 1017 /* 1018 * If there's a BPF listener, bounce a copy of this frame 1019 * to him. 1020 */ 1021 #if NBPFILTER > 0 1022 if (ifp->if_bpf) 1023 BPF_MTAP(ifp, m_head); 1024 #endif 1025 1026 ifp->if_flags |= IFF_OACTIVE; 1027 1028 /* 1029 * Set a timeout in case the chip goes out to lunch. 1030 */ 1031 ifp->if_timer = 5; 1032 1033 return; 1034 } 1035 1036 Static void 1037 axe_init(void *xsc) 1038 { 1039 struct axe_softc *sc = xsc; 1040 struct ifnet *ifp = GET_IFP(sc); 1041 struct axe_chain *c; 1042 usbd_status err; 1043 int rxmode; 1044 int i, s; 1045 1046 if (ifp->if_flags & IFF_RUNNING) 1047 return; 1048 1049 s = splnet(); 1050 1051 /* 1052 * Cancel pending I/O and free all RX/TX buffers. 1053 */ 1054 axe_reset(sc); 1055 1056 /* Enable RX logic. */ 1057 1058 /* Init RX ring. */ 1059 if (axe_rx_list_init(sc) == ENOBUFS) { 1060 printf("%s: rx list init failed\n", device_xname(sc->axe_dev)); 1061 splx(s); 1062 return; 1063 } 1064 1065 /* Init TX ring. */ 1066 if (axe_tx_list_init(sc) == ENOBUFS) { 1067 printf("%s: tx list init failed\n", device_xname(sc->axe_dev)); 1068 splx(s); 1069 return; 1070 } 1071 1072 /* Set transmitter IPG values */ 1073 axe_lock_mii(sc); 1074 axe_cmd(sc, AXE_CMD_WRITE_IPG0, 0, sc->axe_ipgs[0], NULL); 1075 axe_cmd(sc, AXE_CMD_WRITE_IPG1, 0, sc->axe_ipgs[1], NULL); 1076 axe_cmd(sc, AXE_CMD_WRITE_IPG2, 0, sc->axe_ipgs[2], NULL); 1077 1078 /* Enable receiver, set RX mode */ 1079 rxmode = AXE_RXCMD_UNICAST|AXE_RXCMD_MULTICAST|AXE_RXCMD_ENABLE; 1080 1081 /* If we want promiscuous mode, set the allframes bit. */ 1082 if (ifp->if_flags & IFF_PROMISC) 1083 rxmode |= AXE_RXCMD_PROMISC; 1084 1085 if (ifp->if_flags & IFF_BROADCAST) 1086 rxmode |= AXE_RXCMD_BROADCAST; 1087 1088 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 1089 axe_unlock_mii(sc); 1090 1091 /* Load the multicast filter. */ 1092 axe_setmulti(sc); 1093 1094 /* Open RX and TX pipes. */ 1095 err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_RX], 1096 USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_RX]); 1097 if (err) { 1098 printf("%s: open rx pipe failed: %s\n", 1099 device_xname(sc->axe_dev), usbd_errstr(err)); 1100 splx(s); 1101 return; 1102 } 1103 1104 err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_TX], 1105 USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_TX]); 1106 if (err) { 1107 printf("%s: open tx pipe failed: %s\n", 1108 device_xname(sc->axe_dev), usbd_errstr(err)); 1109 splx(s); 1110 return; 1111 } 1112 1113 /* Start up the receive pipe. */ 1114 for (i = 0; i < AXE_RX_LIST_CNT; i++) { 1115 c = &sc->axe_cdata.axe_rx_chain[i]; 1116 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX], 1117 c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, 1118 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, axe_rxeof); 1119 usbd_transfer(c->axe_xfer); 1120 } 1121 1122 ifp->if_flags |= IFF_RUNNING; 1123 ifp->if_flags &= ~IFF_OACTIVE; 1124 1125 splx(s); 1126 1127 callout_init(&(sc->axe_stat_ch), 0); 1128 callout_reset(&(sc->axe_stat_ch), (hz), (axe_tick), (sc)); 1129 return; 1130 } 1131 1132 Static int 1133 axe_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1134 { 1135 struct axe_softc *sc = ifp->if_softc; 1136 struct ifreq *ifr = (struct ifreq *)data; 1137 struct ifaddr *ifa = (struct ifaddr *)data; 1138 u_int16_t rxmode; 1139 int error = 0; 1140 1141 switch(cmd) { 1142 case SIOCINITIFADDR: 1143 ifp->if_flags |= IFF_UP; 1144 axe_init(sc); 1145 1146 switch (ifa->ifa_addr->sa_family) { 1147 #ifdef INET 1148 case AF_INET: 1149 #if defined(__NetBSD__) 1150 arp_ifinit(ifp, ifa); 1151 #else 1152 arp_ifinit(&sc->arpcom, ifa); 1153 #endif 1154 break; 1155 #endif /* INET */ 1156 } 1157 break; 1158 1159 case SIOCSIFMTU: 1160 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 1161 error = EINVAL; 1162 else if ((error = ifioctl_common(ifp, cmd, data)) == ENETRESET) 1163 error = 0; 1164 break; 1165 1166 case SIOCSIFFLAGS: 1167 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1168 break; 1169 if (ifp->if_flags & IFF_UP) { 1170 if (ifp->if_flags & IFF_RUNNING && 1171 ifp->if_flags & IFF_PROMISC && 1172 !(sc->axe_if_flags & IFF_PROMISC)) { 1173 1174 axe_lock_mii(sc); 1175 axe_cmd(sc, AXE_CMD_RXCTL_READ, 1176 0, 0, (void *)&rxmode); 1177 rxmode = le16toh(rxmode) | AXE_RXCMD_PROMISC; 1178 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 1179 0, rxmode, NULL); 1180 axe_unlock_mii(sc); 1181 1182 axe_setmulti(sc); 1183 } else if (ifp->if_flags & IFF_RUNNING && 1184 !(ifp->if_flags & IFF_PROMISC) && 1185 sc->axe_if_flags & IFF_PROMISC) { 1186 axe_lock_mii(sc); 1187 axe_cmd(sc, AXE_CMD_RXCTL_READ, 1188 0, 0, (void *)&rxmode); 1189 rxmode = le16toh(rxmode) & ~AXE_RXCMD_PROMISC; 1190 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 1191 0, rxmode, NULL); 1192 axe_unlock_mii(sc); 1193 axe_setmulti(sc); 1194 } else if (!(ifp->if_flags & IFF_RUNNING)) 1195 axe_init(sc); 1196 } else { 1197 if (ifp->if_flags & IFF_RUNNING) 1198 axe_stop(sc); 1199 } 1200 sc->axe_if_flags = ifp->if_flags; 1201 error = 0; 1202 break; 1203 case SIOCADDMULTI: 1204 case SIOCDELMULTI: 1205 case SIOCGIFMEDIA: 1206 case SIOCSIFMEDIA: 1207 error = ether_ioctl(ifp, cmd, data); 1208 if (error == ENETRESET) { 1209 /* 1210 * Multicast list has changed; set the hardware 1211 * filter accordingly. 1212 */ 1213 if (ifp->if_flags & IFF_RUNNING) 1214 axe_setmulti(sc); 1215 error = 0; 1216 } 1217 break; 1218 default: 1219 error = ether_ioctl(ifp, cmd, data); 1220 break; 1221 } 1222 1223 return(error); 1224 } 1225 1226 /* 1227 * XXX 1228 * You can't call axe_txeof since the USB transfer has not 1229 * completed yet. 1230 */ 1231 Static void 1232 axe_watchdog(struct ifnet *ifp) 1233 { 1234 struct axe_softc *sc; 1235 struct axe_chain *c; 1236 usbd_status stat; 1237 int s; 1238 1239 sc = ifp->if_softc; 1240 1241 ifp->if_oerrors++; 1242 printf("%s: watchdog timeout\n", device_xname(sc->axe_dev)); 1243 1244 s = splusb(); 1245 c = &sc->axe_cdata.axe_tx_chain[0]; 1246 usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &stat); 1247 axe_txeof(c->axe_xfer, c, stat); 1248 1249 if (ifp->if_snd.ifq_head != NULL) 1250 axe_start(ifp); 1251 splx(s); 1252 } 1253 1254 /* 1255 * Stop the adapter and free any mbufs allocated to the 1256 * RX and TX lists. 1257 */ 1258 Static void 1259 axe_stop(struct axe_softc *sc) 1260 { 1261 usbd_status err; 1262 struct ifnet *ifp; 1263 int i; 1264 1265 axe_reset(sc); 1266 1267 ifp = GET_IFP(sc); 1268 ifp->if_timer = 0; 1269 1270 callout_stop(&(sc->axe_stat_ch)); 1271 1272 /* Stop transfers. */ 1273 if (sc->axe_ep[AXE_ENDPT_RX] != NULL) { 1274 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]); 1275 if (err) { 1276 printf("%s: abort rx pipe failed: %s\n", 1277 device_xname(sc->axe_dev), usbd_errstr(err)); 1278 } 1279 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_RX]); 1280 if (err) { 1281 printf("%s: close rx pipe failed: %s\n", 1282 device_xname(sc->axe_dev), usbd_errstr(err)); 1283 } 1284 sc->axe_ep[AXE_ENDPT_RX] = NULL; 1285 } 1286 1287 if (sc->axe_ep[AXE_ENDPT_TX] != NULL) { 1288 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]); 1289 if (err) { 1290 printf("%s: abort tx pipe failed: %s\n", 1291 device_xname(sc->axe_dev), usbd_errstr(err)); 1292 } 1293 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_TX]); 1294 if (err) { 1295 printf("%s: close tx pipe failed: %s\n", 1296 device_xname(sc->axe_dev), usbd_errstr(err)); 1297 } 1298 sc->axe_ep[AXE_ENDPT_TX] = NULL; 1299 } 1300 1301 if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) { 1302 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]); 1303 if (err) { 1304 printf("%s: abort intr pipe failed: %s\n", 1305 device_xname(sc->axe_dev), usbd_errstr(err)); 1306 } 1307 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_INTR]); 1308 if (err) { 1309 printf("%s: close intr pipe failed: %s\n", 1310 device_xname(sc->axe_dev), usbd_errstr(err)); 1311 } 1312 sc->axe_ep[AXE_ENDPT_INTR] = NULL; 1313 } 1314 1315 /* Free RX resources. */ 1316 for (i = 0; i < AXE_RX_LIST_CNT; i++) { 1317 if (sc->axe_cdata.axe_rx_chain[i].axe_mbuf != NULL) { 1318 m_freem(sc->axe_cdata.axe_rx_chain[i].axe_mbuf); 1319 sc->axe_cdata.axe_rx_chain[i].axe_mbuf = NULL; 1320 } 1321 if (sc->axe_cdata.axe_rx_chain[i].axe_xfer != NULL) { 1322 usbd_free_xfer(sc->axe_cdata.axe_rx_chain[i].axe_xfer); 1323 sc->axe_cdata.axe_rx_chain[i].axe_xfer = NULL; 1324 } 1325 } 1326 1327 /* Free TX resources. */ 1328 for (i = 0; i < AXE_TX_LIST_CNT; i++) { 1329 if (sc->axe_cdata.axe_tx_chain[i].axe_mbuf != NULL) { 1330 m_freem(sc->axe_cdata.axe_tx_chain[i].axe_mbuf); 1331 sc->axe_cdata.axe_tx_chain[i].axe_mbuf = NULL; 1332 } 1333 if (sc->axe_cdata.axe_tx_chain[i].axe_xfer != NULL) { 1334 usbd_free_xfer(sc->axe_cdata.axe_tx_chain[i].axe_xfer); 1335 sc->axe_cdata.axe_tx_chain[i].axe_xfer = NULL; 1336 } 1337 } 1338 1339 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1340 } 1341 1342