1 /*- 2 * Copyright (c) 1997, 1998, 1999, 2000 3 * Bill Paul <wpaul@ee.columbia.edu>. 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 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 /* 37 * CATC USB-EL1210A USB to ethernet driver. Used in the CATC Netmate 38 * adapters and others. 39 * 40 * Written by Bill Paul <wpaul@ee.columbia.edu> 41 * Electrical Engineering Department 42 * Columbia University, New York City 43 */ 44 45 /* 46 * The CATC USB-EL1210A provides USB ethernet support at 10Mbps. The 47 * RX filter uses a 512-bit multicast hash table, single perfect entry 48 * for the station address, and promiscuous mode. Unlike the ADMtek 49 * and KLSI chips, the CATC ASIC supports read and write combining 50 * mode where multiple packets can be transferred using a single bulk 51 * transaction, which helps performance a great deal. 52 */ 53 54 #include <sys/stdint.h> 55 #include <sys/stddef.h> 56 #include <sys/param.h> 57 #include <sys/queue.h> 58 #include <sys/types.h> 59 #include <sys/systm.h> 60 #include <sys/socket.h> 61 #include <sys/kernel.h> 62 #include <sys/bus.h> 63 #include <sys/module.h> 64 #include <sys/lock.h> 65 #include <sys/mutex.h> 66 #include <sys/condvar.h> 67 #include <sys/sysctl.h> 68 #include <sys/sx.h> 69 #include <sys/unistd.h> 70 #include <sys/callout.h> 71 #include <sys/malloc.h> 72 #include <sys/priv.h> 73 74 #include <net/if.h> 75 #include <net/if_var.h> 76 77 #include <dev/usb/usb.h> 78 #include <dev/usb/usbdi.h> 79 #include <dev/usb/usbdi_util.h> 80 #include "usbdevs.h" 81 82 #define USB_DEBUG_VAR cue_debug 83 #include <dev/usb/usb_debug.h> 84 #include <dev/usb/usb_process.h> 85 86 #include <dev/usb/net/usb_ethernet.h> 87 #include <dev/usb/net/if_cuereg.h> 88 89 /* 90 * Various supported device vendors/products. 91 */ 92 93 /* Belkin F5U111 adapter covered by NETMATE entry */ 94 95 static const STRUCT_USB_HOST_ID cue_devs[] = { 96 #define CUE_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 97 CUE_DEV(CATC, NETMATE), 98 CUE_DEV(CATC, NETMATE2), 99 CUE_DEV(SMARTBRIDGES, SMARTLINK), 100 #undef CUE_DEV 101 }; 102 103 /* prototypes */ 104 105 static device_probe_t cue_probe; 106 static device_attach_t cue_attach; 107 static device_detach_t cue_detach; 108 109 static usb_callback_t cue_bulk_read_callback; 110 static usb_callback_t cue_bulk_write_callback; 111 112 static uether_fn_t cue_attach_post; 113 static uether_fn_t cue_init; 114 static uether_fn_t cue_stop; 115 static uether_fn_t cue_start; 116 static uether_fn_t cue_tick; 117 static uether_fn_t cue_setmulti; 118 static uether_fn_t cue_setpromisc; 119 120 static uint8_t cue_csr_read_1(struct cue_softc *, uint16_t); 121 static uint16_t cue_csr_read_2(struct cue_softc *, uint8_t); 122 static int cue_csr_write_1(struct cue_softc *, uint16_t, uint16_t); 123 static int cue_mem(struct cue_softc *, uint8_t, uint16_t, void *, int); 124 static int cue_getmac(struct cue_softc *, void *); 125 static uint32_t cue_mchash(const uint8_t *); 126 static void cue_reset(struct cue_softc *); 127 128 #ifdef USB_DEBUG 129 static int cue_debug = 0; 130 131 static SYSCTL_NODE(_hw_usb, OID_AUTO, cue, CTLFLAG_RW, 0, "USB cue"); 132 SYSCTL_INT(_hw_usb_cue, OID_AUTO, debug, CTLFLAG_RWTUN, &cue_debug, 0, 133 "Debug level"); 134 #endif 135 136 static const struct usb_config cue_config[CUE_N_TRANSFER] = { 137 138 [CUE_BULK_DT_WR] = { 139 .type = UE_BULK, 140 .endpoint = UE_ADDR_ANY, 141 .direction = UE_DIR_OUT, 142 .bufsize = (MCLBYTES + 2), 143 .flags = {.pipe_bof = 1,}, 144 .callback = cue_bulk_write_callback, 145 .timeout = 10000, /* 10 seconds */ 146 }, 147 148 [CUE_BULK_DT_RD] = { 149 .type = UE_BULK, 150 .endpoint = UE_ADDR_ANY, 151 .direction = UE_DIR_IN, 152 .bufsize = (MCLBYTES + 2), 153 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 154 .callback = cue_bulk_read_callback, 155 }, 156 }; 157 158 static device_method_t cue_methods[] = { 159 /* Device interface */ 160 DEVMETHOD(device_probe, cue_probe), 161 DEVMETHOD(device_attach, cue_attach), 162 DEVMETHOD(device_detach, cue_detach), 163 164 DEVMETHOD_END 165 }; 166 167 static driver_t cue_driver = { 168 .name = "cue", 169 .methods = cue_methods, 170 .size = sizeof(struct cue_softc), 171 }; 172 173 static devclass_t cue_devclass; 174 175 DRIVER_MODULE(cue, uhub, cue_driver, cue_devclass, NULL, 0); 176 MODULE_DEPEND(cue, uether, 1, 1, 1); 177 MODULE_DEPEND(cue, usb, 1, 1, 1); 178 MODULE_DEPEND(cue, ether, 1, 1, 1); 179 MODULE_VERSION(cue, 1); 180 USB_PNP_HOST_INFO(cue_devs); 181 182 static const struct usb_ether_methods cue_ue_methods = { 183 .ue_attach_post = cue_attach_post, 184 .ue_start = cue_start, 185 .ue_init = cue_init, 186 .ue_stop = cue_stop, 187 .ue_tick = cue_tick, 188 .ue_setmulti = cue_setmulti, 189 .ue_setpromisc = cue_setpromisc, 190 }; 191 192 #define CUE_SETBIT(sc, reg, x) \ 193 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x)) 194 195 #define CUE_CLRBIT(sc, reg, x) \ 196 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x)) 197 198 static uint8_t 199 cue_csr_read_1(struct cue_softc *sc, uint16_t reg) 200 { 201 struct usb_device_request req; 202 uint8_t val; 203 204 req.bmRequestType = UT_READ_VENDOR_DEVICE; 205 req.bRequest = CUE_CMD_READREG; 206 USETW(req.wValue, 0); 207 USETW(req.wIndex, reg); 208 USETW(req.wLength, 1); 209 210 if (uether_do_request(&sc->sc_ue, &req, &val, 1000)) { 211 /* ignore any errors */ 212 } 213 return (val); 214 } 215 216 static uint16_t 217 cue_csr_read_2(struct cue_softc *sc, uint8_t reg) 218 { 219 struct usb_device_request req; 220 uint16_t val; 221 222 req.bmRequestType = UT_READ_VENDOR_DEVICE; 223 req.bRequest = CUE_CMD_READREG; 224 USETW(req.wValue, 0); 225 USETW(req.wIndex, reg); 226 USETW(req.wLength, 2); 227 228 (void)uether_do_request(&sc->sc_ue, &req, &val, 1000); 229 return (le16toh(val)); 230 } 231 232 static int 233 cue_csr_write_1(struct cue_softc *sc, uint16_t reg, uint16_t val) 234 { 235 struct usb_device_request req; 236 237 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 238 req.bRequest = CUE_CMD_WRITEREG; 239 USETW(req.wValue, val); 240 USETW(req.wIndex, reg); 241 USETW(req.wLength, 0); 242 243 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 244 } 245 246 static int 247 cue_mem(struct cue_softc *sc, uint8_t cmd, uint16_t addr, void *buf, int len) 248 { 249 struct usb_device_request req; 250 251 if (cmd == CUE_CMD_READSRAM) 252 req.bmRequestType = UT_READ_VENDOR_DEVICE; 253 else 254 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 255 req.bRequest = cmd; 256 USETW(req.wValue, 0); 257 USETW(req.wIndex, addr); 258 USETW(req.wLength, len); 259 260 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 261 } 262 263 static int 264 cue_getmac(struct cue_softc *sc, void *buf) 265 { 266 struct usb_device_request req; 267 268 req.bmRequestType = UT_READ_VENDOR_DEVICE; 269 req.bRequest = CUE_CMD_GET_MACADDR; 270 USETW(req.wValue, 0); 271 USETW(req.wIndex, 0); 272 USETW(req.wLength, ETHER_ADDR_LEN); 273 274 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 275 } 276 277 #define CUE_BITS 9 278 279 static uint32_t 280 cue_mchash(const uint8_t *addr) 281 { 282 uint32_t crc; 283 284 /* Compute CRC for the address value. */ 285 crc = ether_crc32_le(addr, ETHER_ADDR_LEN); 286 287 return (crc & ((1 << CUE_BITS) - 1)); 288 } 289 290 static void 291 cue_setpromisc(struct usb_ether *ue) 292 { 293 struct cue_softc *sc = uether_getsc(ue); 294 struct ifnet *ifp = uether_getifp(ue); 295 296 CUE_LOCK_ASSERT(sc, MA_OWNED); 297 298 /* if we want promiscuous mode, set the allframes bit */ 299 if (ifp->if_flags & IFF_PROMISC) 300 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 301 else 302 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 303 304 /* write multicast hash-bits */ 305 cue_setmulti(ue); 306 } 307 308 static void 309 cue_setmulti(struct usb_ether *ue) 310 { 311 struct cue_softc *sc = uether_getsc(ue); 312 struct ifnet *ifp = uether_getifp(ue); 313 struct ifmultiaddr *ifma; 314 uint32_t h = 0, i; 315 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 316 317 CUE_LOCK_ASSERT(sc, MA_OWNED); 318 319 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 320 for (i = 0; i < 8; i++) 321 hashtbl[i] = 0xff; 322 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 323 &hashtbl, 8); 324 return; 325 } 326 327 /* now program new ones */ 328 if_maddr_rlock(ifp); 329 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) 330 { 331 if (ifma->ifma_addr->sa_family != AF_LINK) 332 continue; 333 h = cue_mchash(LLADDR((struct sockaddr_dl *)ifma->ifma_addr)); 334 hashtbl[h >> 3] |= 1 << (h & 0x7); 335 } 336 if_maddr_runlock(ifp); 337 338 /* 339 * Also include the broadcast address in the filter 340 * so we can receive broadcast frames. 341 */ 342 if (ifp->if_flags & IFF_BROADCAST) { 343 h = cue_mchash(ifp->if_broadcastaddr); 344 hashtbl[h >> 3] |= 1 << (h & 0x7); 345 } 346 347 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, &hashtbl, 8); 348 } 349 350 static void 351 cue_reset(struct cue_softc *sc) 352 { 353 struct usb_device_request req; 354 355 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 356 req.bRequest = CUE_CMD_RESET; 357 USETW(req.wValue, 0); 358 USETW(req.wIndex, 0); 359 USETW(req.wLength, 0); 360 361 if (uether_do_request(&sc->sc_ue, &req, NULL, 1000)) { 362 /* ignore any errors */ 363 } 364 365 /* 366 * wait a little while for the chip to get its brains in order: 367 */ 368 uether_pause(&sc->sc_ue, hz / 100); 369 } 370 371 static void 372 cue_attach_post(struct usb_ether *ue) 373 { 374 struct cue_softc *sc = uether_getsc(ue); 375 376 cue_getmac(sc, ue->ue_eaddr); 377 } 378 379 static int 380 cue_probe(device_t dev) 381 { 382 struct usb_attach_arg *uaa = device_get_ivars(dev); 383 384 if (uaa->usb_mode != USB_MODE_HOST) 385 return (ENXIO); 386 if (uaa->info.bConfigIndex != CUE_CONFIG_IDX) 387 return (ENXIO); 388 if (uaa->info.bIfaceIndex != CUE_IFACE_IDX) 389 return (ENXIO); 390 391 return (usbd_lookup_id_by_uaa(cue_devs, sizeof(cue_devs), uaa)); 392 } 393 394 /* 395 * Attach the interface. Allocate softc structures, do ifmedia 396 * setup and ethernet/BPF attach. 397 */ 398 static int 399 cue_attach(device_t dev) 400 { 401 struct usb_attach_arg *uaa = device_get_ivars(dev); 402 struct cue_softc *sc = device_get_softc(dev); 403 struct usb_ether *ue = &sc->sc_ue; 404 uint8_t iface_index; 405 int error; 406 407 device_set_usb_desc(dev); 408 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 409 410 iface_index = CUE_IFACE_IDX; 411 error = usbd_transfer_setup(uaa->device, &iface_index, 412 sc->sc_xfer, cue_config, CUE_N_TRANSFER, sc, &sc->sc_mtx); 413 if (error) { 414 device_printf(dev, "allocating USB transfers failed\n"); 415 goto detach; 416 } 417 418 ue->ue_sc = sc; 419 ue->ue_dev = dev; 420 ue->ue_udev = uaa->device; 421 ue->ue_mtx = &sc->sc_mtx; 422 ue->ue_methods = &cue_ue_methods; 423 424 error = uether_ifattach(ue); 425 if (error) { 426 device_printf(dev, "could not attach interface\n"); 427 goto detach; 428 } 429 return (0); /* success */ 430 431 detach: 432 cue_detach(dev); 433 return (ENXIO); /* failure */ 434 } 435 436 static int 437 cue_detach(device_t dev) 438 { 439 struct cue_softc *sc = device_get_softc(dev); 440 struct usb_ether *ue = &sc->sc_ue; 441 442 usbd_transfer_unsetup(sc->sc_xfer, CUE_N_TRANSFER); 443 uether_ifdetach(ue); 444 mtx_destroy(&sc->sc_mtx); 445 446 return (0); 447 } 448 449 static void 450 cue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 451 { 452 struct cue_softc *sc = usbd_xfer_softc(xfer); 453 struct usb_ether *ue = &sc->sc_ue; 454 struct ifnet *ifp = uether_getifp(ue); 455 struct usb_page_cache *pc; 456 uint8_t buf[2]; 457 int len; 458 int actlen; 459 460 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 461 462 switch (USB_GET_STATE(xfer)) { 463 case USB_ST_TRANSFERRED: 464 465 if (actlen <= (int)(2 + sizeof(struct ether_header))) { 466 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 467 goto tr_setup; 468 } 469 pc = usbd_xfer_get_frame(xfer, 0); 470 usbd_copy_out(pc, 0, buf, 2); 471 actlen -= 2; 472 len = buf[0] | (buf[1] << 8); 473 len = min(actlen, len); 474 475 uether_rxbuf(ue, pc, 2, len); 476 /* FALLTHROUGH */ 477 case USB_ST_SETUP: 478 tr_setup: 479 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 480 usbd_transfer_submit(xfer); 481 uether_rxflush(ue); 482 return; 483 484 default: /* Error */ 485 DPRINTF("bulk read error, %s\n", 486 usbd_errstr(error)); 487 488 if (error != USB_ERR_CANCELLED) { 489 /* try to clear stall first */ 490 usbd_xfer_set_stall(xfer); 491 goto tr_setup; 492 } 493 return; 494 495 } 496 } 497 498 static void 499 cue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 500 { 501 struct cue_softc *sc = usbd_xfer_softc(xfer); 502 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 503 struct usb_page_cache *pc; 504 struct mbuf *m; 505 uint8_t buf[2]; 506 507 switch (USB_GET_STATE(xfer)) { 508 case USB_ST_TRANSFERRED: 509 DPRINTFN(11, "transfer complete\n"); 510 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 511 512 /* FALLTHROUGH */ 513 case USB_ST_SETUP: 514 tr_setup: 515 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 516 517 if (m == NULL) 518 return; 519 if (m->m_pkthdr.len > MCLBYTES) 520 m->m_pkthdr.len = MCLBYTES; 521 usbd_xfer_set_frame_len(xfer, 0, (m->m_pkthdr.len + 2)); 522 523 /* the first two bytes are the frame length */ 524 525 buf[0] = (uint8_t)(m->m_pkthdr.len); 526 buf[1] = (uint8_t)(m->m_pkthdr.len >> 8); 527 528 pc = usbd_xfer_get_frame(xfer, 0); 529 usbd_copy_in(pc, 0, buf, 2); 530 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 531 532 /* 533 * If there's a BPF listener, bounce a copy of this frame 534 * to him. 535 */ 536 BPF_MTAP(ifp, m); 537 538 m_freem(m); 539 540 usbd_transfer_submit(xfer); 541 542 return; 543 544 default: /* Error */ 545 DPRINTFN(11, "transfer error, %s\n", 546 usbd_errstr(error)); 547 548 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 549 550 if (error != USB_ERR_CANCELLED) { 551 /* try to clear stall first */ 552 usbd_xfer_set_stall(xfer); 553 goto tr_setup; 554 } 555 return; 556 } 557 } 558 559 static void 560 cue_tick(struct usb_ether *ue) 561 { 562 struct cue_softc *sc = uether_getsc(ue); 563 struct ifnet *ifp = uether_getifp(ue); 564 565 CUE_LOCK_ASSERT(sc, MA_OWNED); 566 567 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, cue_csr_read_2(sc, CUE_TX_SINGLECOLL)); 568 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, cue_csr_read_2(sc, CUE_TX_MULTICOLL)); 569 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, cue_csr_read_2(sc, CUE_TX_EXCESSCOLL)); 570 571 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR)) 572 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 573 } 574 575 static void 576 cue_start(struct usb_ether *ue) 577 { 578 struct cue_softc *sc = uether_getsc(ue); 579 580 /* 581 * start the USB transfers, if not already started: 582 */ 583 usbd_transfer_start(sc->sc_xfer[CUE_BULK_DT_RD]); 584 usbd_transfer_start(sc->sc_xfer[CUE_BULK_DT_WR]); 585 } 586 587 static void 588 cue_init(struct usb_ether *ue) 589 { 590 struct cue_softc *sc = uether_getsc(ue); 591 struct ifnet *ifp = uether_getifp(ue); 592 int i; 593 594 CUE_LOCK_ASSERT(sc, MA_OWNED); 595 596 /* 597 * Cancel pending I/O and free all RX/TX buffers. 598 */ 599 cue_stop(ue); 600 #if 0 601 cue_reset(sc); 602 #endif 603 /* Set MAC address */ 604 for (i = 0; i < ETHER_ADDR_LEN; i++) 605 cue_csr_write_1(sc, CUE_PAR0 - i, IF_LLADDR(ifp)[i]); 606 607 /* Enable RX logic. */ 608 cue_csr_write_1(sc, CUE_ETHCTL, CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON); 609 610 /* Load the multicast filter */ 611 cue_setpromisc(ue); 612 613 /* 614 * Set the number of RX and TX buffers that we want 615 * to reserve inside the ASIC. 616 */ 617 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES); 618 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES); 619 620 /* Set advanced operation modes. */ 621 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 622 CUE_AOP_EMBED_RXLEN | 0x01);/* 1 wait state */ 623 624 /* Program the LED operation. */ 625 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK); 626 627 usbd_xfer_set_stall(sc->sc_xfer[CUE_BULK_DT_WR]); 628 629 ifp->if_drv_flags |= IFF_DRV_RUNNING; 630 cue_start(ue); 631 } 632 633 /* 634 * Stop the adapter and free any mbufs allocated to the 635 * RX and TX lists. 636 */ 637 static void 638 cue_stop(struct usb_ether *ue) 639 { 640 struct cue_softc *sc = uether_getsc(ue); 641 struct ifnet *ifp = uether_getifp(ue); 642 643 CUE_LOCK_ASSERT(sc, MA_OWNED); 644 645 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 646 647 /* 648 * stop all the transfers, if not already stopped: 649 */ 650 usbd_transfer_stop(sc->sc_xfer[CUE_BULK_DT_WR]); 651 usbd_transfer_stop(sc->sc_xfer[CUE_BULK_DT_RD]); 652 653 cue_csr_write_1(sc, CUE_ETHCTL, 0); 654 cue_reset(sc); 655 } 656