if_axe.c revision 1.32
1 /* $NetBSD: if_axe.c,v 1.32 2010/04/05 07:21:48 joerg Exp $ */ 2 3 /* 4 * Copyright (c) 1997, 1998, 1999, 2000-2003 5 * Bill Paul <wpaul (at) 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 (at) 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 (at) 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 1.32 2010/04/05 07:21:48 joerg Exp $"); 77 78 #if defined(__NetBSD__) 79 #include "opt_inet.h" 80 #include "rnd.h" 81 #endif 82 83 84 #include <sys/param.h> 85 #include <sys/systm.h> 86 #include <sys/sockio.h> 87 #include <sys/mutex.h> 88 #include <sys/mbuf.h> 89 #include <sys/kernel.h> 90 #if defined(__OpenBSD__) 91 #include <sys/proc.h> 92 #endif 93 #include <sys/socket.h> 94 95 #include <sys/device.h> 96 #if NRND > 0 97 #include <sys/rnd.h> 98 #endif 99 100 #include <net/if.h> 101 #if defined(__NetBSD__) 102 #include <net/if_arp.h> 103 #endif 104 #include <net/if_dl.h> 105 #include <net/if_media.h> 106 107 #include <net/bpf.h> 108 109 #if defined(__NetBSD__) 110 #include <net/if_ether.h> 111 #ifdef INET 112 #include <netinet/in.h> 113 #include <netinet/if_inarp.h> 114 #endif 115 #endif /* defined(__NetBSD__) */ 116 117 #if defined(__OpenBSD__) 118 #ifdef INET 119 #include <netinet/in.h> 120 #include <netinet/in_systm.h> 121 #include <netinet/in_var.h> 122 #include <netinet/ip.h> 123 #include <netinet/if_ether.h> 124 #endif 125 #endif /* defined(__OpenBSD__) */ 126 127 128 #include <dev/mii/mii.h> 129 #include <dev/mii/miivar.h> 130 131 #include <dev/usb/usb.h> 132 #include <dev/usb/usbdi.h> 133 #include <dev/usb/usbdi_util.h> 134 #include <dev/usb/usbdevs.h> 135 136 #include <dev/usb/if_axereg.h> 137 138 #ifdef AXE_DEBUG 139 #define DPRINTF(x) do { if (axedebug) logprintf x; } while (0) 140 #define DPRINTFN(n,x) do { if (axedebug >= (n)) logprintf x; } while (0) 141 int axedebug = 0; 142 #else 143 #define DPRINTF(x) 144 #define DPRINTFN(n,x) 145 #endif 146 147 /* 148 * Various supported device vendors/products. 149 */ 150 Static const struct axe_type axe_devs[] = { 151 { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88172}, 0 }, 152 { { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB2_TX }, 0}, 153 { { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUBE100}, 0 }, 154 { { USB_VENDOR_LINKSYS2, USB_PRODUCT_LINKSYS2_USB200M}, 0 }, 155 { { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAU2KTX}, 0 }, 156 { { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_FA120}, 0 }, 157 { { USB_VENDOR_SITECOM, USB_PRODUCT_SITECOM_LN029}, 0 }, 158 { { USB_VENDOR_SYSTEMTALKS, USB_PRODUCT_SYSTEMTALKS_SGCX2UL}, 0 }, 159 }; 160 #define axe_lookup(v, p) ((const struct axe_type *)usb_lookup(axe_devs, v, p)) 161 162 int axe_match(device_t, cfdata_t, void *); 163 void axe_attach(device_t, device_t, void *); 164 int axe_detach(device_t, int); 165 int axe_activate(device_t, enum devact); 166 extern struct cfdriver axe_cd; 167 CFATTACH_DECL_NEW(axe, sizeof(struct axe_softc), axe_match, axe_attach, 168 axe_detach, axe_activate); 169 170 Static int axe_tx_list_init(struct axe_softc *); 171 Static int axe_rx_list_init(struct axe_softc *); 172 Static int axe_newbuf(struct axe_softc *, struct axe_chain *, struct mbuf *); 173 Static int axe_encap(struct axe_softc *, struct mbuf *, int); 174 Static void axe_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 175 Static void axe_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 176 Static void axe_tick(void *); 177 Static void axe_tick_task(void *); 178 #if 0 179 Static void axe_rxstart(struct ifnet *); 180 #endif 181 Static void axe_start(struct ifnet *); 182 Static int axe_ioctl(struct ifnet *, u_long, void *); 183 Static void axe_init(void *); 184 Static void axe_stop(struct axe_softc *); 185 Static void axe_watchdog(struct ifnet *); 186 Static int axe_miibus_readreg(device_t, int, int); 187 Static void axe_miibus_writereg(device_t, int, int, int); 188 Static void axe_miibus_statchg(device_t); 189 Static int axe_cmd(struct axe_softc *, int, int, int, void *); 190 Static void axe_reset(struct axe_softc *sc); 191 192 Static void axe_setmulti(struct axe_softc *); 193 Static void axe_lock_mii(struct axe_softc *sc); 194 Static void axe_unlock_mii(struct axe_softc *sc); 195 196 /* Get exclusive access to the MII registers */ 197 Static void 198 axe_lock_mii(struct axe_softc *sc) 199 { 200 sc->axe_refcnt++; 201 mutex_enter(&sc->axe_mii_lock); 202 } 203 204 Static void 205 axe_unlock_mii(struct axe_softc *sc) 206 { 207 mutex_exit(&sc->axe_mii_lock); 208 if (--sc->axe_refcnt < 0) 209 usb_detach_wakeup((sc->axe_dev)); 210 } 211 212 Static int 213 axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf) 214 { 215 usb_device_request_t req; 216 usbd_status err; 217 218 KASSERT(mutex_owned(&sc->axe_mii_lock)); 219 220 if (sc->axe_dying) 221 return(0); 222 223 if (AXE_CMD_DIR(cmd)) 224 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 225 else 226 req.bmRequestType = UT_READ_VENDOR_DEVICE; 227 req.bRequest = AXE_CMD_CMD(cmd); 228 USETW(req.wValue, val); 229 USETW(req.wIndex, index); 230 USETW(req.wLength, AXE_CMD_LEN(cmd)); 231 232 err = usbd_do_request(sc->axe_udev, &req, buf); 233 234 if (err) 235 return(-1); 236 237 return(0); 238 } 239 240 Static int 241 axe_miibus_readreg(device_t dev, int phy, int reg) 242 { 243 struct axe_softc *sc = device_private(dev); 244 usbd_status err; 245 u_int16_t val; 246 247 if (sc->axe_dying) { 248 DPRINTF(("axe: dying\n")); 249 return(0); 250 } 251 252 #ifdef notdef 253 /* 254 * The chip tells us the MII address of any supported 255 * PHYs attached to the chip, so only read from those. 256 */ 257 258 if (sc->axe_phyaddrs[0] != AXE_NOPHY && phy != sc->axe_phyaddrs[0]) 259 return (0); 260 261 if (sc->axe_phyaddrs[1] != AXE_NOPHY && phy != sc->axe_phyaddrs[1]) 262 return (0); 263 #endif 264 if (sc->axe_phyaddrs[0] != 0xFF && sc->axe_phyaddrs[0] != phy) 265 return (0); 266 267 val = 0; 268 269 axe_lock_mii(sc); 270 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); 271 err = axe_cmd(sc, AXE_CMD_MII_READ_REG, reg, phy, (void *)&val); 272 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); 273 axe_unlock_mii(sc); 274 275 if (err) { 276 aprint_error_dev(sc->axe_dev, "read PHY failed\n"); 277 return(-1); 278 } 279 280 if (val) 281 sc->axe_phyaddrs[0] = phy; 282 283 return (le16toh(val)); 284 } 285 286 Static void 287 axe_miibus_writereg(device_t dev, int phy, int reg, int aval) 288 { 289 struct axe_softc *sc = device_private(dev); 290 usbd_status err; 291 u_int16_t val; 292 293 if (sc->axe_dying) 294 return; 295 296 val = htole16(aval); 297 axe_lock_mii(sc); 298 axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); 299 err = axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, (void *)&val); 300 axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); 301 axe_unlock_mii(sc); 302 303 if (err) { 304 aprint_error_dev(sc->axe_dev, "write PHY failed\n"); 305 return; 306 } 307 } 308 309 Static void 310 axe_miibus_statchg(device_t dev) 311 { 312 struct axe_softc *sc = device_private(dev); 313 struct mii_data *mii = GET_MII(sc); 314 int val, err; 315 316 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) 317 val = AXE_MEDIA_FULL_DUPLEX; 318 else 319 val = 0; 320 DPRINTF(("axe_miibus_statchg: val=0x%x\n", val)); 321 axe_lock_mii(sc); 322 err = axe_cmd(sc, AXE_CMD_WRITE_MEDIA, 0, val, NULL); 323 axe_unlock_mii(sc); 324 if (err) { 325 aprint_error_dev(sc->axe_dev, "media change failed\n"); 326 return; 327 } 328 } 329 330 Static void 331 axe_setmulti(struct axe_softc *sc) 332 { 333 struct ifnet *ifp; 334 struct ether_multi *enm; 335 struct ether_multistep step; 336 u_int32_t h = 0; 337 u_int16_t rxmode; 338 u_int8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 339 340 if (sc->axe_dying) 341 return; 342 343 ifp = GET_IFP(sc); 344 345 axe_lock_mii(sc); 346 axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, (void *)&rxmode); 347 rxmode = le16toh(rxmode); 348 349 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 350 allmulti: 351 rxmode |= AXE_RXCMD_ALLMULTI; 352 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 353 return; 354 } else 355 rxmode &= ~AXE_RXCMD_ALLMULTI; 356 357 /* now program new ones */ 358 #if defined(__NetBSD__) 359 ETHER_FIRST_MULTI(step, &sc->axe_ec, enm); 360 #else 361 ETHER_FIRST_MULTI(step, &sc->arpcom, enm); 362 #endif 363 while (enm != NULL) { 364 if (memcmp(enm->enm_addrlo, enm->enm_addrhi, 365 ETHER_ADDR_LEN) != 0) 366 goto allmulti; 367 368 h = ether_crc32_be(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26; 369 hashtbl[h / 8] |= 1 << (h % 8); 370 ETHER_NEXT_MULTI(step, enm); 371 } 372 373 ifp->if_flags &= ~IFF_ALLMULTI; 374 axe_cmd(sc, AXE_CMD_WRITE_MCAST, 0, 0, (void *)&hashtbl); 375 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 376 axe_unlock_mii(sc); 377 return; 378 } 379 380 Static void 381 axe_reset(struct axe_softc *sc) 382 { 383 if (sc->axe_dying) 384 return; 385 /* XXX What to reset? */ 386 387 /* Wait a little while for the chip to get its brains in order. */ 388 DELAY(1000); 389 return; 390 } 391 392 /* 393 * Probe for a AX88172 chip. 394 */ 395 int 396 axe_match(device_t parent, cfdata_t match, void *aux) 397 { 398 struct usb_attach_arg *uaa = aux; 399 400 return (axe_lookup(uaa->vendor, uaa->product) != NULL ? 401 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 402 } 403 404 /* 405 * Attach the interface. Allocate softc structures, do ifmedia 406 * setup and ethernet/BPF attach. 407 */ 408 void 409 axe_attach(device_t parent, device_t self, void *aux) 410 { 411 struct axe_softc *sc = device_private(self); 412 struct usb_attach_arg *uaa = aux; 413 usbd_device_handle dev = uaa->device; 414 usbd_status err; 415 usb_interface_descriptor_t *id; 416 usb_endpoint_descriptor_t *ed; 417 struct mii_data *mii; 418 u_char eaddr[ETHER_ADDR_LEN]; 419 char *devinfop; 420 const char *devname = device_xname(self); 421 struct ifnet *ifp; 422 int i, s; 423 424 sc->axe_dev = self; 425 426 aprint_naive("\n"); 427 aprint_normal("\n"); 428 429 devinfop = usbd_devinfo_alloc(dev, 0); 430 aprint_normal_dev(self, "%s\n", devinfop); 431 usbd_devinfo_free(devinfop); 432 433 err = usbd_set_config_no(dev, AXE_CONFIG_NO, 1); 434 if (err) { 435 aprint_error_dev(self, "getting interface handle failed\n"); 436 return; 437 } 438 439 usb_init_task(&sc->axe_tick_task, axe_tick_task, sc); 440 mutex_init(&sc->axe_mii_lock, MUTEX_DEFAULT, IPL_NONE); 441 usb_init_task(&sc->axe_stop_task, (void (*)(void *))axe_stop, sc); 442 443 err = usbd_device2interface_handle(dev, AXE_IFACE_IDX, &sc->axe_iface); 444 if (err) { 445 aprint_error_dev(self, "getting interface handle failed\n"); 446 return; 447 } 448 449 sc->axe_udev = dev; 450 sc->axe_product = uaa->product; 451 sc->axe_vendor = uaa->vendor; 452 453 id = usbd_get_interface_descriptor(sc->axe_iface); 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 aprint_error_dev(self, "couldn't get ep %d\n", i); 460 return; 461 } 462 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 463 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 464 sc->axe_ed[AXE_ENDPT_RX] = ed->bEndpointAddress; 465 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 466 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 467 sc->axe_ed[AXE_ENDPT_TX] = ed->bEndpointAddress; 468 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 469 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 470 sc->axe_ed[AXE_ENDPT_INTR] = ed->bEndpointAddress; 471 } 472 } 473 474 s = splnet(); 475 476 /* 477 * Get station address. 478 */ 479 axe_lock_mii(sc); 480 axe_cmd(sc, AXE_CMD_READ_NODEID, 0, 0, &eaddr); 481 482 /* 483 * Load IPG values and PHY indexes. 484 */ 485 axe_cmd(sc, AXE_CMD_READ_IPG012, 0, 0, (void *)&sc->axe_ipgs); 486 axe_cmd(sc, AXE_CMD_READ_PHYID, 0, 0, (void *)&sc->axe_phyaddrs); 487 axe_unlock_mii(sc); 488 489 /* 490 * Work around broken adapters that appear to lie about 491 * their PHY addresses. 492 */ 493 sc->axe_phyaddrs[0] = sc->axe_phyaddrs[1] = 0xFF; 494 495 /* 496 * An ASIX chip was detected. Inform the world. 497 */ 498 aprint_normal_dev(self, "Ethernet address %s\n", 499 ether_sprintf(eaddr)); 500 501 /* Initialize interface info.*/ 502 ifp = GET_IFP(sc); 503 ifp->if_softc = sc; 504 strncpy(ifp->if_xname, devname, IFNAMSIZ); 505 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 506 ifp->if_ioctl = axe_ioctl; 507 ifp->if_start = axe_start; 508 509 ifp->if_watchdog = axe_watchdog; 510 511 /* ifp->if_baudrate = 10000000; */ 512 /* ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;*/ 513 514 IFQ_SET_READY(&ifp->if_snd); 515 516 /* Initialize MII/media info. */ 517 mii = &sc->axe_mii; 518 mii->mii_ifp = ifp; 519 mii->mii_readreg = axe_miibus_readreg; 520 mii->mii_writereg = axe_miibus_writereg; 521 mii->mii_statchg = axe_miibus_statchg; 522 mii->mii_flags = MIIF_AUTOTSLEEP; 523 524 sc->axe_ec.ec_mii = mii; 525 ifmedia_init(&mii->mii_media, 0, ether_mediachange, ether_mediastatus); 526 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); 527 528 if (LIST_EMPTY(&mii->mii_phys)) { 529 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); 530 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); 531 } else 532 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 533 534 /* Attach the interface. */ 535 if_attach(ifp); 536 ether_ifattach(ifp, eaddr); 537 #if NRND > 0 538 rnd_attach_source(&sc->rnd_source, device_xname(sc->axe_dev), 539 RND_TYPE_NET, 0); 540 #endif 541 542 callout_init(&(sc->axe_stat_ch), 0); 543 544 sc->axe_attached = 1; 545 splx(s); 546 547 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->axe_udev, sc->axe_dev); 548 549 return; 550 } 551 552 int 553 axe_detach(device_t self, int flags) 554 { 555 struct axe_softc *sc = device_private(self); 556 int s; 557 struct ifnet *ifp = GET_IFP(sc); 558 559 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 560 561 /* Detached before attached finished, so just bail out. */ 562 if (!sc->axe_attached) 563 return (0); 564 565 callout_stop(&(sc->axe_stat_ch)); 566 567 sc->axe_dying = 1; 568 569 ether_ifdetach(ifp); 570 571 if (sc->axe_ep[AXE_ENDPT_TX] != NULL) 572 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]); 573 if (sc->axe_ep[AXE_ENDPT_RX] != NULL) 574 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]); 575 if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) 576 usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]); 577 578 /* 579 * Remove any pending tasks. They cannot be executing because they run 580 * in the same thread as detach. 581 */ 582 usb_rem_task(sc->axe_udev, &sc->axe_tick_task); 583 usb_rem_task(sc->axe_udev, &sc->axe_stop_task); 584 585 s = splusb(); 586 587 if (--sc->axe_refcnt >= 0) { 588 /* Wait for processes to go away */ 589 usb_detach_wait((sc->axe_dev)); 590 } 591 592 if (ifp->if_flags & IFF_RUNNING) 593 axe_stop(sc); 594 595 #if defined(__NetBSD__) 596 #if NRND > 0 597 rnd_detach_source(&sc->rnd_source); 598 #endif 599 #endif /* __NetBSD__ */ 600 mii_detach(&sc->axe_mii, MII_PHY_ANY, MII_OFFSET_ANY); 601 ifmedia_delete_instance(&sc->axe_mii.mii_media, IFM_INST_ANY); 602 ether_ifdetach(ifp); 603 if_detach(ifp); 604 605 #ifdef DIAGNOSTIC 606 if (sc->axe_ep[AXE_ENDPT_TX] != NULL || 607 sc->axe_ep[AXE_ENDPT_RX] != NULL || 608 sc->axe_ep[AXE_ENDPT_INTR] != NULL) 609 aprint_debug_dev(self, "detach has active endpoints\n"); 610 #endif 611 612 sc->axe_attached = 0; 613 614 if (--sc->axe_refcnt >= 0) { 615 /* Wait for processes to go away. */ 616 usb_detach_wait((sc->axe_dev)); 617 } 618 splx(s); 619 620 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->axe_udev, sc->axe_dev); 621 622 return (0); 623 } 624 625 int 626 axe_activate(device_t self, enum devact act) 627 { 628 struct axe_softc *sc = device_private(self); 629 630 DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 631 632 switch (act) { 633 case DVACT_DEACTIVATE: 634 if_deactivate(&sc->axe_ec.ec_if); 635 sc->axe_dying = 1; 636 return 0; 637 default: 638 return EOPNOTSUPP; 639 } 640 } 641 642 /* 643 * Initialize an RX descriptor and attach an MBUF cluster. 644 */ 645 Static int 646 axe_newbuf(struct axe_softc *sc, struct axe_chain *c, struct mbuf *m) 647 { 648 struct mbuf *m_new = NULL; 649 650 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev),__func__)); 651 652 if (m == NULL) { 653 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 654 if (m_new == NULL) { 655 aprint_error_dev(sc->axe_dev, "no memory for rx list " 656 "-- packet dropped!\n"); 657 return (ENOBUFS); 658 } 659 660 MCLGET(m_new, M_DONTWAIT); 661 if (!(m_new->m_flags & M_EXT)) { 662 aprint_error_dev(sc->axe_dev, "no memory for rx list " 663 "-- packet dropped!\n"); 664 m_freem(m_new); 665 return (ENOBUFS); 666 } 667 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 668 } else { 669 m_new = m; 670 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 671 m_new->m_data = m_new->m_ext.ext_buf; 672 } 673 674 m_adj(m_new, ETHER_ALIGN); 675 c->axe_mbuf = m_new; 676 677 return (0); 678 } 679 680 Static int 681 axe_rx_list_init(struct axe_softc *sc) 682 { 683 struct axe_cdata *cd; 684 struct axe_chain *c; 685 int i; 686 687 DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 688 689 cd = &sc->axe_cdata; 690 for (i = 0; i < AXE_RX_LIST_CNT; i++) { 691 c = &cd->axe_rx_chain[i]; 692 c->axe_sc = sc; 693 c->axe_idx = i; 694 if (axe_newbuf(sc, c, NULL) == ENOBUFS) 695 return (ENOBUFS); 696 if (c->axe_xfer == NULL) { 697 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev); 698 if (c->axe_xfer == NULL) 699 return (ENOBUFS); 700 c->axe_buf = usbd_alloc_buffer(c->axe_xfer, AXE_BUFSZ); 701 if (c->axe_buf == NULL) { 702 usbd_free_xfer(c->axe_xfer); 703 return (ENOBUFS); 704 } 705 } 706 } 707 708 return (0); 709 } 710 711 Static int 712 axe_tx_list_init(struct axe_softc *sc) 713 { 714 struct axe_cdata *cd; 715 struct axe_chain *c; 716 int i; 717 718 DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); 719 720 cd = &sc->axe_cdata; 721 for (i = 0; i < AXE_TX_LIST_CNT; i++) { 722 c = &cd->axe_tx_chain[i]; 723 c->axe_sc = sc; 724 c->axe_idx = i; 725 c->axe_mbuf = NULL; 726 if (c->axe_xfer == NULL) { 727 c->axe_xfer = usbd_alloc_xfer(sc->axe_udev); 728 if (c->axe_xfer == NULL) 729 return (ENOBUFS); 730 c->axe_buf = usbd_alloc_buffer(c->axe_xfer, AXE_BUFSZ); 731 if (c->axe_buf == NULL) { 732 usbd_free_xfer(c->axe_xfer); 733 return (ENOBUFS); 734 } 735 } 736 } 737 738 return (0); 739 } 740 741 #if 0 742 Static void 743 axe_rxstart(struct ifnet *ifp) 744 { 745 struct axe_softc *sc; 746 struct axe_chain *c; 747 748 sc = ifp->if_softc; 749 axe_lock_mii(sc); 750 c = &sc->axe_cdata.axe_rx_chain[sc->axe_cdata.axe_rx_prod]; 751 752 if (axe_newbuf(sc, c, NULL) == ENOBUFS) { 753 ifp->if_ierrors++; 754 axe_unlock_mii(sc); 755 return; 756 } 757 758 /* Setup new transfer. */ 759 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX], 760 c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, USBD_SHORT_XFER_OK, 761 USBD_NO_TIMEOUT, axe_rxeof); 762 usbd_transfer(c->axe_xfer); 763 axe_unlock_mii(sc); 764 765 return; 766 } 767 #endif 768 769 /* 770 * A frame has been uploaded: pass the resulting mbuf chain up to 771 * the higher level protocols. 772 */ 773 Static void 774 axe_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 775 { 776 struct axe_softc *sc; 777 struct axe_chain *c; 778 struct ifnet *ifp; 779 struct mbuf *m; 780 u_int32_t total_len; 781 int s; 782 783 c = priv; 784 sc = c->axe_sc; 785 ifp = GET_IFP(sc); 786 787 DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev),__func__)); 788 789 if (sc->axe_dying) 790 return; 791 792 if (!(ifp->if_flags & IFF_RUNNING)) 793 return; 794 795 if (status != USBD_NORMAL_COMPLETION) { 796 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 797 return; 798 if (usbd_ratecheck(&sc->axe_rx_notice)) { 799 printf("%s: usb errors on rx: %s\n", 800 device_xname(sc->axe_dev), usbd_errstr(status)); 801 } 802 if (status == USBD_STALLED) 803 usbd_clear_endpoint_stall_async(sc->axe_ep[AXE_ENDPT_RX]); 804 goto done; 805 } 806 807 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 808 809 m = c->axe_mbuf; 810 811 if (total_len <= sizeof(struct ether_header)) { 812 ifp->if_ierrors++; 813 goto done; 814 } 815 816 ifp->if_ipackets++; 817 m->m_pkthdr.rcvif = ifp; 818 m->m_pkthdr.len = m->m_len = total_len; 819 820 821 memcpy(mtod(c->axe_mbuf, char *), c->axe_buf, total_len); 822 823 /* No errors; receive the packet. */ 824 total_len -= ETHER_CRC_LEN + 4; 825 826 s = splnet(); 827 828 /* XXX ugly */ 829 if (axe_newbuf(sc, c, NULL) == ENOBUFS) { 830 ifp->if_ierrors++; 831 goto done1; 832 } 833 834 bpf_mtap(ifp, m); 835 836 DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->axe_dev), 837 __func__, m->m_len)); 838 (*(ifp)->if_input)((ifp), (m)); 839 done1: 840 splx(s); 841 842 done: 843 844 /* Setup new transfer. */ 845 usbd_setup_xfer(xfer, sc->axe_ep[AXE_ENDPT_RX], 846 c, c->axe_buf, AXE_BUFSZ, 847 USBD_SHORT_XFER_OK | USBD_NO_COPY, 848 USBD_NO_TIMEOUT, axe_rxeof); 849 usbd_transfer(xfer); 850 851 DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->axe_dev), 852 __func__)); 853 return; 854 } 855 856 /* 857 * A frame was downloaded to the chip. It's safe for us to clean up 858 * the list buffers. 859 */ 860 861 Static void 862 axe_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, 863 usbd_status status) 864 { 865 struct axe_softc *sc; 866 struct axe_chain *c; 867 struct ifnet *ifp; 868 int s; 869 870 c = priv; 871 sc = c->axe_sc; 872 ifp = GET_IFP(sc); 873 874 if (sc->axe_dying) 875 return; 876 877 s = splnet(); 878 879 if (status != USBD_NORMAL_COMPLETION) { 880 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 881 splx(s); 882 return; 883 } 884 ifp->if_oerrors++; 885 printf("%s: usb error on tx: %s\n", device_xname(sc->axe_dev), 886 usbd_errstr(status)); 887 if (status == USBD_STALLED) 888 usbd_clear_endpoint_stall_async(sc->axe_ep[AXE_ENDPT_TX]); 889 splx(s); 890 return; 891 } 892 893 ifp->if_timer = 0; 894 ifp->if_flags &= ~IFF_OACTIVE; 895 896 m_freem(c->axe_mbuf); 897 c->axe_mbuf = NULL; 898 899 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 900 axe_start(ifp); 901 902 ifp->if_opackets++; 903 splx(s); 904 return; 905 } 906 907 Static void 908 axe_tick(void *xsc) 909 { 910 struct axe_softc *sc = xsc; 911 912 if (sc == NULL) 913 return; 914 915 DPRINTFN(0xff, ("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), 916 __func__)); 917 918 if (sc->axe_dying) 919 return; 920 921 /* Perform periodic stuff in process context */ 922 usb_add_task(sc->axe_udev, &sc->axe_tick_task, USB_TASKQ_DRIVER); 923 924 } 925 926 Static void 927 axe_tick_task(void *xsc) 928 { 929 int s; 930 struct axe_softc *sc; 931 struct ifnet *ifp; 932 struct mii_data *mii; 933 934 sc = xsc; 935 936 if (sc == NULL) 937 return; 938 939 if (sc->axe_dying) 940 return; 941 942 ifp = GET_IFP(sc); 943 mii = GET_MII(sc); 944 if (mii == NULL) 945 return; 946 947 s = splnet(); 948 949 mii_tick(mii); 950 951 callout_reset(&(sc->axe_stat_ch), (hz), (axe_tick), (sc)); 952 953 splx(s); 954 } 955 956 Static int 957 axe_encap(struct axe_softc *sc, struct mbuf *m, int idx) 958 { 959 struct axe_chain *c; 960 usbd_status err; 961 962 c = &sc->axe_cdata.axe_tx_chain[idx]; 963 964 /* 965 * Copy the mbuf data into a contiguous buffer, leaving two 966 * bytes at the beginning to hold the frame length. 967 */ 968 m_copydata(m, 0, m->m_pkthdr.len, c->axe_buf); 969 c->axe_mbuf = m; 970 971 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_TX], 972 c, c->axe_buf, m->m_pkthdr.len, USBD_FORCE_SHORT_XFER, 10000, 973 axe_txeof); 974 975 /* Transmit */ 976 err = usbd_transfer(c->axe_xfer); 977 if (err != USBD_IN_PROGRESS) { 978 axe_stop(sc); 979 return(EIO); 980 } 981 982 sc->axe_cdata.axe_tx_cnt++; 983 984 return(0); 985 } 986 987 Static void 988 axe_start(struct ifnet *ifp) 989 { 990 struct axe_softc *sc; 991 struct mbuf *m_head = NULL; 992 993 sc = ifp->if_softc; 994 995 if ((ifp->if_flags & (IFF_OACTIVE|IFF_RUNNING)) != IFF_RUNNING) 996 return; 997 998 IF_DEQUEUE(&ifp->if_snd, m_head); 999 if (m_head == NULL) { 1000 return; 1001 } 1002 1003 if (axe_encap(sc, m_head, 0)) { 1004 IF_PREPEND(&ifp->if_snd, m_head); 1005 ifp->if_flags |= IFF_OACTIVE; 1006 return; 1007 } 1008 1009 /* 1010 * If there's a BPF listener, bounce a copy of this frame 1011 * to him. 1012 */ 1013 bpf_mtap(ifp, m_head); 1014 1015 ifp->if_flags |= IFF_OACTIVE; 1016 1017 /* 1018 * Set a timeout in case the chip goes out to lunch. 1019 */ 1020 ifp->if_timer = 5; 1021 1022 return; 1023 } 1024 1025 Static void 1026 axe_init(void *xsc) 1027 { 1028 struct axe_softc *sc = xsc; 1029 struct ifnet *ifp = GET_IFP(sc); 1030 struct axe_chain *c; 1031 usbd_status err; 1032 int rxmode; 1033 int i, s; 1034 1035 if (ifp->if_flags & IFF_RUNNING) 1036 return; 1037 1038 s = splnet(); 1039 1040 /* 1041 * Cancel pending I/O and free all RX/TX buffers. 1042 */ 1043 axe_reset(sc); 1044 1045 /* Enable RX logic. */ 1046 1047 /* Init RX ring. */ 1048 if (axe_rx_list_init(sc) == ENOBUFS) { 1049 printf("%s: rx list init failed\n", device_xname(sc->axe_dev)); 1050 splx(s); 1051 return; 1052 } 1053 1054 /* Init TX ring. */ 1055 if (axe_tx_list_init(sc) == ENOBUFS) { 1056 printf("%s: tx list init failed\n", device_xname(sc->axe_dev)); 1057 splx(s); 1058 return; 1059 } 1060 1061 /* Set transmitter IPG values */ 1062 axe_lock_mii(sc); 1063 axe_cmd(sc, AXE_CMD_WRITE_IPG0, 0, sc->axe_ipgs[0], NULL); 1064 axe_cmd(sc, AXE_CMD_WRITE_IPG1, 0, sc->axe_ipgs[1], NULL); 1065 axe_cmd(sc, AXE_CMD_WRITE_IPG2, 0, sc->axe_ipgs[2], NULL); 1066 1067 /* Enable receiver, set RX mode */ 1068 rxmode = AXE_RXCMD_UNICAST|AXE_RXCMD_MULTICAST|AXE_RXCMD_ENABLE; 1069 1070 /* If we want promiscuous mode, set the allframes bit. */ 1071 if (ifp->if_flags & IFF_PROMISC) 1072 rxmode |= AXE_RXCMD_PROMISC; 1073 1074 if (ifp->if_flags & IFF_BROADCAST) 1075 rxmode |= AXE_RXCMD_BROADCAST; 1076 1077 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); 1078 axe_unlock_mii(sc); 1079 1080 /* Load the multicast filter. */ 1081 axe_setmulti(sc); 1082 1083 /* Open RX and TX pipes. */ 1084 err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_RX], 1085 USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_RX]); 1086 if (err) { 1087 printf("%s: open rx pipe failed: %s\n", 1088 device_xname(sc->axe_dev), usbd_errstr(err)); 1089 splx(s); 1090 return; 1091 } 1092 1093 err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_TX], 1094 USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_TX]); 1095 if (err) { 1096 printf("%s: open tx pipe failed: %s\n", 1097 device_xname(sc->axe_dev), usbd_errstr(err)); 1098 splx(s); 1099 return; 1100 } 1101 1102 /* Start up the receive pipe. */ 1103 for (i = 0; i < AXE_RX_LIST_CNT; i++) { 1104 c = &sc->axe_cdata.axe_rx_chain[i]; 1105 usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX], 1106 c, mtod(c->axe_mbuf, char *), AXE_BUFSZ, 1107 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, axe_rxeof); 1108 usbd_transfer(c->axe_xfer); 1109 } 1110 1111 ifp->if_flags |= IFF_RUNNING; 1112 ifp->if_flags &= ~IFF_OACTIVE; 1113 1114 splx(s); 1115 1116 callout_init(&(sc->axe_stat_ch), 0); 1117 callout_reset(&(sc->axe_stat_ch), (hz), (axe_tick), (sc)); 1118 return; 1119 } 1120 1121 Static int 1122 axe_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1123 { 1124 struct axe_softc *sc = ifp->if_softc; 1125 struct ifreq *ifr = (struct ifreq *)data; 1126 struct ifaddr *ifa = (struct ifaddr *)data; 1127 u_int16_t rxmode; 1128 int error = 0; 1129 1130 switch(cmd) { 1131 case SIOCINITIFADDR: 1132 ifp->if_flags |= IFF_UP; 1133 axe_init(sc); 1134 1135 switch (ifa->ifa_addr->sa_family) { 1136 #ifdef INET 1137 case AF_INET: 1138 #if defined(__NetBSD__) 1139 arp_ifinit(ifp, ifa); 1140 #else 1141 arp_ifinit(&sc->arpcom, ifa); 1142 #endif 1143 break; 1144 #endif /* INET */ 1145 } 1146 break; 1147 1148 case SIOCSIFMTU: 1149 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 1150 error = EINVAL; 1151 else if ((error = ifioctl_common(ifp, cmd, data)) == ENETRESET) 1152 error = 0; 1153 break; 1154 1155 case SIOCSIFFLAGS: 1156 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 1157 break; 1158 if (ifp->if_flags & IFF_UP) { 1159 if (ifp->if_flags & IFF_RUNNING && 1160 ifp->if_flags & IFF_PROMISC && 1161 !(sc->axe_if_flags & IFF_PROMISC)) { 1162 1163 axe_lock_mii(sc); 1164 axe_cmd(sc, AXE_CMD_RXCTL_READ, 1165 0, 0, (void *)&rxmode); 1166 rxmode = le16toh(rxmode) | AXE_RXCMD_PROMISC; 1167 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 1168 0, rxmode, NULL); 1169 axe_unlock_mii(sc); 1170 1171 axe_setmulti(sc); 1172 } else if (ifp->if_flags & IFF_RUNNING && 1173 !(ifp->if_flags & IFF_PROMISC) && 1174 sc->axe_if_flags & IFF_PROMISC) { 1175 axe_lock_mii(sc); 1176 axe_cmd(sc, AXE_CMD_RXCTL_READ, 1177 0, 0, (void *)&rxmode); 1178 rxmode = le16toh(rxmode) & ~AXE_RXCMD_PROMISC; 1179 axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 1180 0, rxmode, NULL); 1181 axe_unlock_mii(sc); 1182 axe_setmulti(sc); 1183 } else if (!(ifp->if_flags & IFF_RUNNING)) 1184 axe_init(sc); 1185 } else { 1186 if (ifp->if_flags & IFF_RUNNING) 1187 axe_stop(sc); 1188 } 1189 sc->axe_if_flags = ifp->if_flags; 1190 error = 0; 1191 break; 1192 case SIOCADDMULTI: 1193 case SIOCDELMULTI: 1194 case SIOCGIFMEDIA: 1195 case SIOCSIFMEDIA: 1196 error = ether_ioctl(ifp, cmd, data); 1197 if (error == ENETRESET) { 1198 /* 1199 * Multicast list has changed; set the hardware 1200 * filter accordingly. 1201 */ 1202 if (ifp->if_flags & IFF_RUNNING) 1203 axe_setmulti(sc); 1204 error = 0; 1205 } 1206 break; 1207 default: 1208 error = ether_ioctl(ifp, cmd, data); 1209 break; 1210 } 1211 1212 return(error); 1213 } 1214 1215 /* 1216 * XXX 1217 * You can't call axe_txeof since the USB transfer has not 1218 * completed yet. 1219 */ 1220 Static void 1221 axe_watchdog(struct ifnet *ifp) 1222 { 1223 struct axe_softc *sc; 1224 struct axe_chain *c; 1225 usbd_status stat; 1226 int s; 1227 1228 sc = ifp->if_softc; 1229 1230 ifp->if_oerrors++; 1231 printf("%s: watchdog timeout\n", device_xname(sc->axe_dev)); 1232 1233 s = splusb(); 1234 c = &sc->axe_cdata.axe_tx_chain[0]; 1235 usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &stat); 1236 axe_txeof(c->axe_xfer, c, stat); 1237 1238 if (ifp->if_snd.ifq_head != NULL) 1239 axe_start(ifp); 1240 splx(s); 1241 } 1242 1243 /* 1244 * Stop the adapter and free any mbufs allocated to the 1245 * RX and TX lists. 1246 */ 1247 Static void 1248 axe_stop(struct axe_softc *sc) 1249 { 1250 usbd_status err; 1251 struct ifnet *ifp; 1252 int i; 1253 1254 axe_reset(sc); 1255 1256 ifp = GET_IFP(sc); 1257 ifp->if_timer = 0; 1258 1259 callout_stop(&(sc->axe_stat_ch)); 1260 1261 /* Stop transfers. */ 1262 if (sc->axe_ep[AXE_ENDPT_RX] != NULL) { 1263 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]); 1264 if (err) { 1265 printf("%s: abort rx pipe failed: %s\n", 1266 device_xname(sc->axe_dev), usbd_errstr(err)); 1267 } 1268 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_RX]); 1269 if (err) { 1270 printf("%s: close rx pipe failed: %s\n", 1271 device_xname(sc->axe_dev), usbd_errstr(err)); 1272 } 1273 sc->axe_ep[AXE_ENDPT_RX] = NULL; 1274 } 1275 1276 if (sc->axe_ep[AXE_ENDPT_TX] != NULL) { 1277 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]); 1278 if (err) { 1279 printf("%s: abort tx pipe failed: %s\n", 1280 device_xname(sc->axe_dev), usbd_errstr(err)); 1281 } 1282 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_TX]); 1283 if (err) { 1284 printf("%s: close tx pipe failed: %s\n", 1285 device_xname(sc->axe_dev), usbd_errstr(err)); 1286 } 1287 sc->axe_ep[AXE_ENDPT_TX] = NULL; 1288 } 1289 1290 if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) { 1291 err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]); 1292 if (err) { 1293 printf("%s: abort intr pipe failed: %s\n", 1294 device_xname(sc->axe_dev), usbd_errstr(err)); 1295 } 1296 err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_INTR]); 1297 if (err) { 1298 printf("%s: close intr pipe failed: %s\n", 1299 device_xname(sc->axe_dev), usbd_errstr(err)); 1300 } 1301 sc->axe_ep[AXE_ENDPT_INTR] = NULL; 1302 } 1303 1304 /* Free RX resources. */ 1305 for (i = 0; i < AXE_RX_LIST_CNT; i++) { 1306 if (sc->axe_cdata.axe_rx_chain[i].axe_mbuf != NULL) { 1307 m_freem(sc->axe_cdata.axe_rx_chain[i].axe_mbuf); 1308 sc->axe_cdata.axe_rx_chain[i].axe_mbuf = NULL; 1309 } 1310 if (sc->axe_cdata.axe_rx_chain[i].axe_xfer != NULL) { 1311 usbd_free_xfer(sc->axe_cdata.axe_rx_chain[i].axe_xfer); 1312 sc->axe_cdata.axe_rx_chain[i].axe_xfer = NULL; 1313 } 1314 } 1315 1316 /* Free TX resources. */ 1317 for (i = 0; i < AXE_TX_LIST_CNT; i++) { 1318 if (sc->axe_cdata.axe_tx_chain[i].axe_mbuf != NULL) { 1319 m_freem(sc->axe_cdata.axe_tx_chain[i].axe_mbuf); 1320 sc->axe_cdata.axe_tx_chain[i].axe_mbuf = NULL; 1321 } 1322 if (sc->axe_cdata.axe_tx_chain[i].axe_xfer != NULL) { 1323 usbd_free_xfer(sc->axe_cdata.axe_tx_chain[i].axe_xfer); 1324 sc->axe_cdata.axe_tx_chain[i].axe_xfer = NULL; 1325 } 1326 } 1327 1328 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1329 } 1330
Indexes created Wed Sep 24 05:09:52 GMT 2025