1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1997, 1998, 1999, 2000 5 * Bill Paul <wpaul@ee.columbia.edu>. 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 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 /* 39 * CATC USB-EL1210A USB to ethernet driver. Used in the CATC Netmate 40 * adapters and others. 41 * 42 * Written by Bill Paul <wpaul@ee.columbia.edu> 43 * Electrical Engineering Department 44 * Columbia University, New York City 45 */ 46 47 /* 48 * The CATC USB-EL1210A provides USB ethernet support at 10Mbps. The 49 * RX filter uses a 512-bit multicast hash table, single perfect entry 50 * for the station address, and promiscuous mode. Unlike the ADMtek 51 * and KLSI chips, the CATC ASIC supports read and write combining 52 * mode where multiple packets can be transferred using a single bulk 53 * transaction, which helps performance a great deal. 54 */ 55 56 #include <sys/stdint.h> 57 #include <sys/stddef.h> 58 #include <sys/param.h> 59 #include <sys/queue.h> 60 #include <sys/types.h> 61 #include <sys/systm.h> 62 #include <sys/socket.h> 63 #include <sys/kernel.h> 64 #include <sys/bus.h> 65 #include <sys/module.h> 66 #include <sys/lock.h> 67 #include <sys/mutex.h> 68 #include <sys/condvar.h> 69 #include <sys/sysctl.h> 70 #include <sys/sx.h> 71 #include <sys/unistd.h> 72 #include <sys/callout.h> 73 #include <sys/malloc.h> 74 #include <sys/priv.h> 75 76 #include <net/if.h> 77 #include <net/if_var.h> 78 79 #include <dev/usb/usb.h> 80 #include <dev/usb/usbdi.h> 81 #include <dev/usb/usbdi_util.h> 82 #include "usbdevs.h" 83 84 #define USB_DEBUG_VAR cue_debug 85 #include <dev/usb/usb_debug.h> 86 #include <dev/usb/usb_process.h> 87 88 #include <dev/usb/net/usb_ethernet.h> 89 #include <dev/usb/net/if_cuereg.h> 90 91 /* 92 * Various supported device vendors/products. 93 */ 94 95 /* Belkin F5U111 adapter covered by NETMATE entry */ 96 97 static const STRUCT_USB_HOST_ID cue_devs[] = { 98 #define CUE_DEV(v,p) { USB_VP(USB_VENDOR_##v, USB_PRODUCT_##v##_##p) } 99 CUE_DEV(CATC, NETMATE), 100 CUE_DEV(CATC, NETMATE2), 101 CUE_DEV(SMARTBRIDGES, SMARTLINK), 102 #undef CUE_DEV 103 }; 104 105 /* prototypes */ 106 107 static device_probe_t cue_probe; 108 static device_attach_t cue_attach; 109 static device_detach_t cue_detach; 110 111 static usb_callback_t cue_bulk_read_callback; 112 static usb_callback_t cue_bulk_write_callback; 113 114 static uether_fn_t cue_attach_post; 115 static uether_fn_t cue_init; 116 static uether_fn_t cue_stop; 117 static uether_fn_t cue_start; 118 static uether_fn_t cue_tick; 119 static uether_fn_t cue_setmulti; 120 static uether_fn_t cue_setpromisc; 121 122 static uint8_t cue_csr_read_1(struct cue_softc *, uint16_t); 123 static uint16_t cue_csr_read_2(struct cue_softc *, uint8_t); 124 static int cue_csr_write_1(struct cue_softc *, uint16_t, uint16_t); 125 static int cue_mem(struct cue_softc *, uint8_t, uint16_t, void *, int); 126 static int cue_getmac(struct cue_softc *, void *); 127 static uint32_t cue_mchash(const uint8_t *); 128 static void cue_reset(struct cue_softc *); 129 130 #ifdef USB_DEBUG 131 static int cue_debug = 0; 132 133 static SYSCTL_NODE(_hw_usb, OID_AUTO, cue, CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 134 "USB cue"); 135 SYSCTL_INT(_hw_usb_cue, OID_AUTO, debug, CTLFLAG_RWTUN, &cue_debug, 0, 136 "Debug level"); 137 #endif 138 139 static const struct usb_config cue_config[CUE_N_TRANSFER] = { 140 141 [CUE_BULK_DT_WR] = { 142 .type = UE_BULK, 143 .endpoint = UE_ADDR_ANY, 144 .direction = UE_DIR_OUT, 145 .bufsize = (MCLBYTES + 2), 146 .flags = {.pipe_bof = 1,}, 147 .callback = cue_bulk_write_callback, 148 .timeout = 10000, /* 10 seconds */ 149 }, 150 151 [CUE_BULK_DT_RD] = { 152 .type = UE_BULK, 153 .endpoint = UE_ADDR_ANY, 154 .direction = UE_DIR_IN, 155 .bufsize = (MCLBYTES + 2), 156 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,}, 157 .callback = cue_bulk_read_callback, 158 }, 159 }; 160 161 static device_method_t cue_methods[] = { 162 /* Device interface */ 163 DEVMETHOD(device_probe, cue_probe), 164 DEVMETHOD(device_attach, cue_attach), 165 DEVMETHOD(device_detach, cue_detach), 166 167 DEVMETHOD_END 168 }; 169 170 static driver_t cue_driver = { 171 .name = "cue", 172 .methods = cue_methods, 173 .size = sizeof(struct cue_softc), 174 }; 175 176 static devclass_t cue_devclass; 177 178 DRIVER_MODULE(cue, uhub, cue_driver, cue_devclass, NULL, 0); 179 MODULE_DEPEND(cue, uether, 1, 1, 1); 180 MODULE_DEPEND(cue, usb, 1, 1, 1); 181 MODULE_DEPEND(cue, ether, 1, 1, 1); 182 MODULE_VERSION(cue, 1); 183 USB_PNP_HOST_INFO(cue_devs); 184 185 static const struct usb_ether_methods cue_ue_methods = { 186 .ue_attach_post = cue_attach_post, 187 .ue_start = cue_start, 188 .ue_init = cue_init, 189 .ue_stop = cue_stop, 190 .ue_tick = cue_tick, 191 .ue_setmulti = cue_setmulti, 192 .ue_setpromisc = cue_setpromisc, 193 }; 194 195 #define CUE_SETBIT(sc, reg, x) \ 196 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x)) 197 198 #define CUE_CLRBIT(sc, reg, x) \ 199 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x)) 200 201 static uint8_t 202 cue_csr_read_1(struct cue_softc *sc, uint16_t reg) 203 { 204 struct usb_device_request req; 205 uint8_t val; 206 207 req.bmRequestType = UT_READ_VENDOR_DEVICE; 208 req.bRequest = CUE_CMD_READREG; 209 USETW(req.wValue, 0); 210 USETW(req.wIndex, reg); 211 USETW(req.wLength, 1); 212 213 if (uether_do_request(&sc->sc_ue, &req, &val, 1000)) { 214 /* ignore any errors */ 215 } 216 return (val); 217 } 218 219 static uint16_t 220 cue_csr_read_2(struct cue_softc *sc, uint8_t reg) 221 { 222 struct usb_device_request req; 223 uint16_t val; 224 225 req.bmRequestType = UT_READ_VENDOR_DEVICE; 226 req.bRequest = CUE_CMD_READREG; 227 USETW(req.wValue, 0); 228 USETW(req.wIndex, reg); 229 USETW(req.wLength, 2); 230 231 (void)uether_do_request(&sc->sc_ue, &req, &val, 1000); 232 return (le16toh(val)); 233 } 234 235 static int 236 cue_csr_write_1(struct cue_softc *sc, uint16_t reg, uint16_t val) 237 { 238 struct usb_device_request req; 239 240 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 241 req.bRequest = CUE_CMD_WRITEREG; 242 USETW(req.wValue, val); 243 USETW(req.wIndex, reg); 244 USETW(req.wLength, 0); 245 246 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000)); 247 } 248 249 static int 250 cue_mem(struct cue_softc *sc, uint8_t cmd, uint16_t addr, void *buf, int len) 251 { 252 struct usb_device_request req; 253 254 if (cmd == CUE_CMD_READSRAM) 255 req.bmRequestType = UT_READ_VENDOR_DEVICE; 256 else 257 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 258 req.bRequest = cmd; 259 USETW(req.wValue, 0); 260 USETW(req.wIndex, addr); 261 USETW(req.wLength, len); 262 263 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 264 } 265 266 static int 267 cue_getmac(struct cue_softc *sc, void *buf) 268 { 269 struct usb_device_request req; 270 271 req.bmRequestType = UT_READ_VENDOR_DEVICE; 272 req.bRequest = CUE_CMD_GET_MACADDR; 273 USETW(req.wValue, 0); 274 USETW(req.wIndex, 0); 275 USETW(req.wLength, ETHER_ADDR_LEN); 276 277 return (uether_do_request(&sc->sc_ue, &req, buf, 1000)); 278 } 279 280 #define CUE_BITS 9 281 282 static uint32_t 283 cue_mchash(const uint8_t *addr) 284 { 285 uint32_t crc; 286 287 /* Compute CRC for the address value. */ 288 crc = ether_crc32_le(addr, ETHER_ADDR_LEN); 289 290 return (crc & ((1 << CUE_BITS) - 1)); 291 } 292 293 static void 294 cue_setpromisc(struct usb_ether *ue) 295 { 296 struct cue_softc *sc = uether_getsc(ue); 297 struct ifnet *ifp = uether_getifp(ue); 298 299 CUE_LOCK_ASSERT(sc, MA_OWNED); 300 301 /* if we want promiscuous mode, set the allframes bit */ 302 if (ifp->if_flags & IFF_PROMISC) 303 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 304 else 305 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 306 307 /* write multicast hash-bits */ 308 cue_setmulti(ue); 309 } 310 311 static u_int 312 cue_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 313 { 314 uint8_t *hashtbl = arg; 315 uint32_t h; 316 317 h = cue_mchash(LLADDR(sdl)); 318 hashtbl[h >> 3] |= 1 << (h & 0x7); 319 320 return (1); 321 } 322 323 static void 324 cue_setmulti(struct usb_ether *ue) 325 { 326 struct cue_softc *sc = uether_getsc(ue); 327 struct ifnet *ifp = uether_getifp(ue); 328 uint32_t h, i; 329 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; 330 331 CUE_LOCK_ASSERT(sc, MA_OWNED); 332 333 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 334 for (i = 0; i < 8; i++) 335 hashtbl[i] = 0xff; 336 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 337 &hashtbl, 8); 338 return; 339 } 340 341 /* now program new ones */ 342 if_foreach_llmaddr(ifp, cue_hash_maddr, hashtbl); 343 344 /* 345 * Also include the broadcast address in the filter 346 * so we can receive broadcast frames. 347 */ 348 if (ifp->if_flags & IFF_BROADCAST) { 349 h = cue_mchash(ifp->if_broadcastaddr); 350 hashtbl[h >> 3] |= 1 << (h & 0x7); 351 } 352 353 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, &hashtbl, 8); 354 } 355 356 static void 357 cue_reset(struct cue_softc *sc) 358 { 359 struct usb_device_request req; 360 361 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 362 req.bRequest = CUE_CMD_RESET; 363 USETW(req.wValue, 0); 364 USETW(req.wIndex, 0); 365 USETW(req.wLength, 0); 366 367 if (uether_do_request(&sc->sc_ue, &req, NULL, 1000)) { 368 /* ignore any errors */ 369 } 370 371 /* 372 * wait a little while for the chip to get its brains in order: 373 */ 374 uether_pause(&sc->sc_ue, hz / 100); 375 } 376 377 static void 378 cue_attach_post(struct usb_ether *ue) 379 { 380 struct cue_softc *sc = uether_getsc(ue); 381 382 cue_getmac(sc, ue->ue_eaddr); 383 } 384 385 static int 386 cue_probe(device_t dev) 387 { 388 struct usb_attach_arg *uaa = device_get_ivars(dev); 389 390 if (uaa->usb_mode != USB_MODE_HOST) 391 return (ENXIO); 392 if (uaa->info.bConfigIndex != CUE_CONFIG_IDX) 393 return (ENXIO); 394 if (uaa->info.bIfaceIndex != CUE_IFACE_IDX) 395 return (ENXIO); 396 397 return (usbd_lookup_id_by_uaa(cue_devs, sizeof(cue_devs), uaa)); 398 } 399 400 /* 401 * Attach the interface. Allocate softc structures, do ifmedia 402 * setup and ethernet/BPF attach. 403 */ 404 static int 405 cue_attach(device_t dev) 406 { 407 struct usb_attach_arg *uaa = device_get_ivars(dev); 408 struct cue_softc *sc = device_get_softc(dev); 409 struct usb_ether *ue = &sc->sc_ue; 410 uint8_t iface_index; 411 int error; 412 413 device_set_usb_desc(dev); 414 mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF); 415 416 iface_index = CUE_IFACE_IDX; 417 error = usbd_transfer_setup(uaa->device, &iface_index, 418 sc->sc_xfer, cue_config, CUE_N_TRANSFER, sc, &sc->sc_mtx); 419 if (error) { 420 device_printf(dev, "allocating USB transfers failed\n"); 421 goto detach; 422 } 423 424 ue->ue_sc = sc; 425 ue->ue_dev = dev; 426 ue->ue_udev = uaa->device; 427 ue->ue_mtx = &sc->sc_mtx; 428 ue->ue_methods = &cue_ue_methods; 429 430 error = uether_ifattach(ue); 431 if (error) { 432 device_printf(dev, "could not attach interface\n"); 433 goto detach; 434 } 435 return (0); /* success */ 436 437 detach: 438 cue_detach(dev); 439 return (ENXIO); /* failure */ 440 } 441 442 static int 443 cue_detach(device_t dev) 444 { 445 struct cue_softc *sc = device_get_softc(dev); 446 struct usb_ether *ue = &sc->sc_ue; 447 448 usbd_transfer_unsetup(sc->sc_xfer, CUE_N_TRANSFER); 449 uether_ifdetach(ue); 450 mtx_destroy(&sc->sc_mtx); 451 452 return (0); 453 } 454 455 static void 456 cue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error) 457 { 458 struct cue_softc *sc = usbd_xfer_softc(xfer); 459 struct usb_ether *ue = &sc->sc_ue; 460 struct ifnet *ifp = uether_getifp(ue); 461 struct usb_page_cache *pc; 462 uint8_t buf[2]; 463 int len; 464 int actlen; 465 466 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL); 467 468 switch (USB_GET_STATE(xfer)) { 469 case USB_ST_TRANSFERRED: 470 471 if (actlen <= (int)(2 + sizeof(struct ether_header))) { 472 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 473 goto tr_setup; 474 } 475 pc = usbd_xfer_get_frame(xfer, 0); 476 usbd_copy_out(pc, 0, buf, 2); 477 actlen -= 2; 478 len = buf[0] | (buf[1] << 8); 479 len = min(actlen, len); 480 481 uether_rxbuf(ue, pc, 2, len); 482 /* FALLTHROUGH */ 483 case USB_ST_SETUP: 484 tr_setup: 485 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer)); 486 usbd_transfer_submit(xfer); 487 uether_rxflush(ue); 488 return; 489 490 default: /* Error */ 491 DPRINTF("bulk read error, %s\n", 492 usbd_errstr(error)); 493 494 if (error != USB_ERR_CANCELLED) { 495 /* try to clear stall first */ 496 usbd_xfer_set_stall(xfer); 497 goto tr_setup; 498 } 499 return; 500 501 } 502 } 503 504 static void 505 cue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error) 506 { 507 struct cue_softc *sc = usbd_xfer_softc(xfer); 508 struct ifnet *ifp = uether_getifp(&sc->sc_ue); 509 struct usb_page_cache *pc; 510 struct mbuf *m; 511 uint8_t buf[2]; 512 513 switch (USB_GET_STATE(xfer)) { 514 case USB_ST_TRANSFERRED: 515 DPRINTFN(11, "transfer complete\n"); 516 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 517 518 /* FALLTHROUGH */ 519 case USB_ST_SETUP: 520 tr_setup: 521 IFQ_DRV_DEQUEUE(&ifp->if_snd, m); 522 523 if (m == NULL) 524 return; 525 if (m->m_pkthdr.len > MCLBYTES) 526 m->m_pkthdr.len = MCLBYTES; 527 usbd_xfer_set_frame_len(xfer, 0, (m->m_pkthdr.len + 2)); 528 529 /* the first two bytes are the frame length */ 530 531 buf[0] = (uint8_t)(m->m_pkthdr.len); 532 buf[1] = (uint8_t)(m->m_pkthdr.len >> 8); 533 534 pc = usbd_xfer_get_frame(xfer, 0); 535 usbd_copy_in(pc, 0, buf, 2); 536 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len); 537 538 /* 539 * If there's a BPF listener, bounce a copy of this frame 540 * to him. 541 */ 542 BPF_MTAP(ifp, m); 543 544 m_freem(m); 545 546 usbd_transfer_submit(xfer); 547 548 return; 549 550 default: /* Error */ 551 DPRINTFN(11, "transfer error, %s\n", 552 usbd_errstr(error)); 553 554 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 555 556 if (error != USB_ERR_CANCELLED) { 557 /* try to clear stall first */ 558 usbd_xfer_set_stall(xfer); 559 goto tr_setup; 560 } 561 return; 562 } 563 } 564 565 static void 566 cue_tick(struct usb_ether *ue) 567 { 568 struct cue_softc *sc = uether_getsc(ue); 569 struct ifnet *ifp = uether_getifp(ue); 570 571 CUE_LOCK_ASSERT(sc, MA_OWNED); 572 573 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, cue_csr_read_2(sc, CUE_TX_SINGLECOLL)); 574 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, cue_csr_read_2(sc, CUE_TX_MULTICOLL)); 575 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, cue_csr_read_2(sc, CUE_TX_EXCESSCOLL)); 576 577 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR)) 578 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 579 } 580 581 static void 582 cue_start(struct usb_ether *ue) 583 { 584 struct cue_softc *sc = uether_getsc(ue); 585 586 /* 587 * start the USB transfers, if not already started: 588 */ 589 usbd_transfer_start(sc->sc_xfer[CUE_BULK_DT_RD]); 590 usbd_transfer_start(sc->sc_xfer[CUE_BULK_DT_WR]); 591 } 592 593 static void 594 cue_init(struct usb_ether *ue) 595 { 596 struct cue_softc *sc = uether_getsc(ue); 597 struct ifnet *ifp = uether_getifp(ue); 598 int i; 599 600 CUE_LOCK_ASSERT(sc, MA_OWNED); 601 602 /* 603 * Cancel pending I/O and free all RX/TX buffers. 604 */ 605 cue_stop(ue); 606 #if 0 607 cue_reset(sc); 608 #endif 609 /* Set MAC address */ 610 for (i = 0; i < ETHER_ADDR_LEN; i++) 611 cue_csr_write_1(sc, CUE_PAR0 - i, IF_LLADDR(ifp)[i]); 612 613 /* Enable RX logic. */ 614 cue_csr_write_1(sc, CUE_ETHCTL, CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON); 615 616 /* Load the multicast filter */ 617 cue_setpromisc(ue); 618 619 /* 620 * Set the number of RX and TX buffers that we want 621 * to reserve inside the ASIC. 622 */ 623 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES); 624 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES); 625 626 /* Set advanced operation modes. */ 627 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 628 CUE_AOP_EMBED_RXLEN | 0x01);/* 1 wait state */ 629 630 /* Program the LED operation. */ 631 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK); 632 633 usbd_xfer_set_stall(sc->sc_xfer[CUE_BULK_DT_WR]); 634 635 ifp->if_drv_flags |= IFF_DRV_RUNNING; 636 cue_start(ue); 637 } 638 639 /* 640 * Stop the adapter and free any mbufs allocated to the 641 * RX and TX lists. 642 */ 643 static void 644 cue_stop(struct usb_ether *ue) 645 { 646 struct cue_softc *sc = uether_getsc(ue); 647 struct ifnet *ifp = uether_getifp(ue); 648 649 CUE_LOCK_ASSERT(sc, MA_OWNED); 650 651 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 652 653 /* 654 * stop all the transfers, if not already stopped: 655 */ 656 usbd_transfer_stop(sc->sc_xfer[CUE_BULK_DT_WR]); 657 usbd_transfer_stop(sc->sc_xfer[CUE_BULK_DT_RD]); 658 659 cue_csr_write_1(sc, CUE_ETHCTL, 0); 660 cue_reset(sc); 661 } 662