1 /* $NetBSD: if_cue.c,v 1.60 2010/11/03 22:28:31 dyoung Exp $ */ 2 /* 3 * Copyright (c) 1997, 1998, 1999, 2000 4 * Bill Paul <wpaul@ee.columbia.edu>. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Bill Paul. 17 * 4. Neither the name of the author nor the names of any co-contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 31 * THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD: src/sys/dev/usb/if_cue.c,v 1.4 2000/01/16 22:45:06 wpaul Exp $ 34 */ 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 transfered using a single bulk 51 * transaction, which helps performance a great deal. 52 */ 53 54 /* 55 * Ported to NetBSD and somewhat rewritten by Lennart Augustsson. 56 */ 57 58 #include <sys/cdefs.h> 59 __KERNEL_RCSID(0, "$NetBSD: if_cue.c,v 1.60 2010/11/03 22:28:31 dyoung Exp $"); 60 61 #if defined(__NetBSD__) 62 #include "opt_inet.h" 63 #include "rnd.h" 64 #elif defined(__OpenBSD__) 65 #include "bpfilter.h" 66 #endif /* defined(__OpenBSD__) */ 67 68 #include <sys/param.h> 69 #include <sys/systm.h> 70 #if !defined(__OpenBSD__) 71 #include <sys/callout.h> 72 #endif 73 #include <sys/sockio.h> 74 #include <sys/mbuf.h> 75 #include <sys/malloc.h> 76 #include <sys/kernel.h> 77 #include <sys/socket.h> 78 79 #include <sys/device.h> 80 #if NRND > 0 81 #include <sys/rnd.h> 82 #endif 83 84 #include <net/if.h> 85 #if defined(__NetBSD__) 86 #include <net/if_arp.h> 87 #endif 88 #include <net/if_dl.h> 89 90 #include <net/bpf.h> 91 92 #if defined(__NetBSD__) 93 #include <net/if_ether.h> 94 #ifdef INET 95 #include <netinet/in.h> 96 #include <netinet/if_inarp.h> 97 #endif 98 #endif /* defined(__NetBSD__) */ 99 100 #if defined(__OpenBSD__) 101 #ifdef INET 102 #include <netinet/in.h> 103 #include <netinet/in_systm.h> 104 #include <netinet/in_var.h> 105 #include <netinet/ip.h> 106 #include <netinet/if_ether.h> 107 #endif 108 #endif /* defined(__OpenBSD__) */ 109 110 111 #include <dev/usb/usb.h> 112 #include <dev/usb/usbdi.h> 113 #include <dev/usb/usbdi_util.h> 114 #include <dev/usb/usbdevs.h> 115 116 #include <dev/usb/if_cuereg.h> 117 118 #ifdef CUE_DEBUG 119 #define DPRINTF(x) if (cuedebug) printf x 120 #define DPRINTFN(n,x) if (cuedebug >= (n)) printf x 121 int cuedebug = 0; 122 #else 123 #define DPRINTF(x) 124 #define DPRINTFN(n,x) 125 #endif 126 127 /* 128 * Various supported device vendors/products. 129 */ 130 Static struct usb_devno cue_devs[] = { 131 { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE }, 132 { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE2 }, 133 { USB_VENDOR_SMARTBRIDGES, USB_PRODUCT_SMARTBRIDGES_SMARTLINK }, 134 /* Belkin F5U111 adapter covered by NETMATE entry */ 135 }; 136 #define cue_lookup(v, p) (usb_lookup(cue_devs, v, p)) 137 138 int cue_match(device_t, cfdata_t, void *); 139 void cue_attach(device_t, device_t, void *); 140 int cue_detach(device_t, int); 141 int cue_activate(device_t, enum devact); 142 extern struct cfdriver cue_cd; 143 CFATTACH_DECL_NEW(cue, sizeof(struct cue_softc), cue_match, cue_attach, 144 cue_detach, cue_activate); 145 146 Static int cue_open_pipes(struct cue_softc *); 147 Static int cue_tx_list_init(struct cue_softc *); 148 Static int cue_rx_list_init(struct cue_softc *); 149 Static int cue_newbuf(struct cue_softc *, struct cue_chain *, struct mbuf *); 150 Static int cue_send(struct cue_softc *, struct mbuf *, int); 151 Static void cue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 152 Static void cue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 153 Static void cue_tick(void *); 154 Static void cue_tick_task(void *); 155 Static void cue_start(struct ifnet *); 156 Static int cue_ioctl(struct ifnet *, u_long, void *); 157 Static void cue_init(void *); 158 Static void cue_stop(struct cue_softc *); 159 Static void cue_watchdog(struct ifnet *); 160 161 Static void cue_setmulti(struct cue_softc *); 162 Static u_int32_t cue_crc(const char *); 163 Static void cue_reset(struct cue_softc *); 164 165 Static int cue_csr_read_1(struct cue_softc *, int); 166 Static int cue_csr_write_1(struct cue_softc *, int, int); 167 Static int cue_csr_read_2(struct cue_softc *, int); 168 #if 0 169 Static int cue_csr_write_2(struct cue_softc *, int, int); 170 #endif 171 Static int cue_mem(struct cue_softc *, int, int, void *, int); 172 Static int cue_getmac(struct cue_softc *, void *); 173 174 #define CUE_SETBIT(sc, reg, x) \ 175 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x)) 176 177 #define CUE_CLRBIT(sc, reg, x) \ 178 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x)) 179 180 Static int 181 cue_csr_read_1(struct cue_softc *sc, int reg) 182 { 183 usb_device_request_t req; 184 usbd_status err; 185 u_int8_t val = 0; 186 187 if (sc->cue_dying) 188 return (0); 189 190 req.bmRequestType = UT_READ_VENDOR_DEVICE; 191 req.bRequest = CUE_CMD_READREG; 192 USETW(req.wValue, 0); 193 USETW(req.wIndex, reg); 194 USETW(req.wLength, 1); 195 196 err = usbd_do_request(sc->cue_udev, &req, &val); 197 198 if (err) { 199 DPRINTF(("%s: cue_csr_read_1: reg=0x%x err=%s\n", 200 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 201 return (0); 202 } 203 204 DPRINTFN(10,("%s: cue_csr_read_1 reg=0x%x val=0x%x\n", 205 device_xname(sc->cue_dev), reg, val)); 206 207 return (val); 208 } 209 210 Static int 211 cue_csr_read_2(struct cue_softc *sc, int reg) 212 { 213 usb_device_request_t req; 214 usbd_status err; 215 uWord val; 216 217 if (sc->cue_dying) 218 return (0); 219 220 req.bmRequestType = UT_READ_VENDOR_DEVICE; 221 req.bRequest = CUE_CMD_READREG; 222 USETW(req.wValue, 0); 223 USETW(req.wIndex, reg); 224 USETW(req.wLength, 2); 225 226 err = usbd_do_request(sc->cue_udev, &req, &val); 227 228 DPRINTFN(10,("%s: cue_csr_read_2 reg=0x%x val=0x%x\n", 229 device_xname(sc->cue_dev), reg, UGETW(val))); 230 231 if (err) { 232 DPRINTF(("%s: cue_csr_read_2: reg=0x%x err=%s\n", 233 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 234 return (0); 235 } 236 237 return (UGETW(val)); 238 } 239 240 Static int 241 cue_csr_write_1(struct cue_softc *sc, int reg, int val) 242 { 243 usb_device_request_t req; 244 usbd_status err; 245 246 if (sc->cue_dying) 247 return (0); 248 249 DPRINTFN(10,("%s: cue_csr_write_1 reg=0x%x val=0x%x\n", 250 device_xname(sc->cue_dev), reg, val)); 251 252 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 253 req.bRequest = CUE_CMD_WRITEREG; 254 USETW(req.wValue, val); 255 USETW(req.wIndex, reg); 256 USETW(req.wLength, 0); 257 258 err = usbd_do_request(sc->cue_udev, &req, NULL); 259 260 if (err) { 261 DPRINTF(("%s: cue_csr_write_1: reg=0x%x err=%s\n", 262 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 263 return (-1); 264 } 265 266 DPRINTFN(20,("%s: cue_csr_write_1, after reg=0x%x val=0x%x\n", 267 device_xname(sc->cue_dev), reg, cue_csr_read_1(sc, reg))); 268 269 return (0); 270 } 271 272 #if 0 273 Static int 274 cue_csr_write_2(struct cue_softc *sc, int reg, int aval) 275 { 276 usb_device_request_t req; 277 usbd_status err; 278 uWord val; 279 int s; 280 281 if (sc->cue_dying) 282 return (0); 283 284 DPRINTFN(10,("%s: cue_csr_write_2 reg=0x%x val=0x%x\n", 285 device_xname(sc->cue_dev), reg, aval)); 286 287 USETW(val, aval); 288 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 289 req.bRequest = CUE_CMD_WRITEREG; 290 USETW(req.wValue, val); 291 USETW(req.wIndex, reg); 292 USETW(req.wLength, 0); 293 294 err = usbd_do_request(sc->cue_udev, &req, NULL); 295 296 if (err) { 297 DPRINTF(("%s: cue_csr_write_2: reg=0x%x err=%s\n", 298 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 299 return (-1); 300 } 301 302 return (0); 303 } 304 #endif 305 306 Static int 307 cue_mem(struct cue_softc *sc, int cmd, int addr, void *buf, int len) 308 { 309 usb_device_request_t req; 310 usbd_status err; 311 312 DPRINTFN(10,("%s: cue_mem cmd=0x%x addr=0x%x len=%d\n", 313 device_xname(sc->cue_dev), cmd, addr, len)); 314 315 if (cmd == CUE_CMD_READSRAM) 316 req.bmRequestType = UT_READ_VENDOR_DEVICE; 317 else 318 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 319 req.bRequest = cmd; 320 USETW(req.wValue, 0); 321 USETW(req.wIndex, addr); 322 USETW(req.wLength, len); 323 324 err = usbd_do_request(sc->cue_udev, &req, buf); 325 326 if (err) { 327 DPRINTF(("%s: cue_csr_mem: addr=0x%x err=%s\n", 328 device_xname(sc->cue_dev), addr, usbd_errstr(err))); 329 return (-1); 330 } 331 332 return (0); 333 } 334 335 Static int 336 cue_getmac(struct cue_softc *sc, void *buf) 337 { 338 usb_device_request_t req; 339 usbd_status err; 340 341 DPRINTFN(10,("%s: cue_getmac\n", device_xname(sc->cue_dev))); 342 343 req.bmRequestType = UT_READ_VENDOR_DEVICE; 344 req.bRequest = CUE_CMD_GET_MACADDR; 345 USETW(req.wValue, 0); 346 USETW(req.wIndex, 0); 347 USETW(req.wLength, ETHER_ADDR_LEN); 348 349 err = usbd_do_request(sc->cue_udev, &req, buf); 350 351 if (err) { 352 printf("%s: read MAC address failed\n", 353 device_xname(sc->cue_dev)); 354 return (-1); 355 } 356 357 return (0); 358 } 359 360 #define CUE_POLY 0xEDB88320 361 #define CUE_BITS 9 362 363 Static u_int32_t 364 cue_crc(const char *addr) 365 { 366 u_int32_t idx, bit, data, crc; 367 368 /* Compute CRC for the address value. */ 369 crc = 0xFFFFFFFF; /* initial value */ 370 371 for (idx = 0; idx < 6; idx++) { 372 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) 373 crc = (crc >> 1) ^ (((crc ^ data) & 1) ? CUE_POLY : 0); 374 } 375 376 return (crc & ((1 << CUE_BITS) - 1)); 377 } 378 379 Static void 380 cue_setmulti(struct cue_softc *sc) 381 { 382 struct ifnet *ifp; 383 struct ether_multi *enm; 384 struct ether_multistep step; 385 u_int32_t h, i; 386 387 ifp = GET_IFP(sc); 388 389 DPRINTFN(2,("%s: cue_setmulti if_flags=0x%x\n", 390 device_xname(sc->cue_dev), ifp->if_flags)); 391 392 if (ifp->if_flags & IFF_PROMISC) { 393 allmulti: 394 ifp->if_flags |= IFF_ALLMULTI; 395 for (i = 0; i < CUE_MCAST_TABLE_LEN; i++) 396 sc->cue_mctab[i] = 0xFF; 397 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 398 &sc->cue_mctab, CUE_MCAST_TABLE_LEN); 399 return; 400 } 401 402 /* first, zot all the existing hash bits */ 403 for (i = 0; i < CUE_MCAST_TABLE_LEN; i++) 404 sc->cue_mctab[i] = 0; 405 406 /* now program new ones */ 407 #if defined(__NetBSD__) 408 ETHER_FIRST_MULTI(step, &sc->cue_ec, enm); 409 #else 410 ETHER_FIRST_MULTI(step, &sc->arpcom, enm); 411 #endif 412 while (enm != NULL) { 413 if (memcmp(enm->enm_addrlo, 414 enm->enm_addrhi, ETHER_ADDR_LEN) != 0) 415 goto allmulti; 416 417 h = cue_crc(enm->enm_addrlo); 418 sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); 419 ETHER_NEXT_MULTI(step, enm); 420 } 421 422 ifp->if_flags &= ~IFF_ALLMULTI; 423 424 /* 425 * Also include the broadcast address in the filter 426 * so we can receive broadcast frames. 427 */ 428 if (ifp->if_flags & IFF_BROADCAST) { 429 h = cue_crc(etherbroadcastaddr); 430 sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); 431 } 432 433 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 434 &sc->cue_mctab, CUE_MCAST_TABLE_LEN); 435 } 436 437 Static void 438 cue_reset(struct cue_softc *sc) 439 { 440 usb_device_request_t req; 441 usbd_status err; 442 443 DPRINTFN(2,("%s: cue_reset\n", device_xname(sc->cue_dev))); 444 445 if (sc->cue_dying) 446 return; 447 448 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 449 req.bRequest = CUE_CMD_RESET; 450 USETW(req.wValue, 0); 451 USETW(req.wIndex, 0); 452 USETW(req.wLength, 0); 453 454 err = usbd_do_request(sc->cue_udev, &req, NULL); 455 456 if (err) 457 printf("%s: reset failed\n", device_xname(sc->cue_dev)); 458 459 /* Wait a little while for the chip to get its brains in order. */ 460 usbd_delay_ms(sc->cue_udev, 1); 461 } 462 463 /* 464 * Probe for a CATC chip. 465 */ 466 int 467 cue_match(device_t parent, cfdata_t match, void *aux) 468 { 469 struct usb_attach_arg *uaa = aux; 470 471 return (cue_lookup(uaa->vendor, uaa->product) != NULL ? 472 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 473 } 474 475 /* 476 * Attach the interface. Allocate softc structures, do ifmedia 477 * setup and ethernet/BPF attach. 478 */ 479 void 480 cue_attach(device_t parent, device_t self, void *aux) 481 { 482 struct cue_softc *sc = device_private(self); 483 struct usb_attach_arg *uaa = aux; 484 char *devinfop; 485 int s; 486 u_char eaddr[ETHER_ADDR_LEN]; 487 usbd_device_handle dev = uaa->device; 488 usbd_interface_handle iface; 489 usbd_status err; 490 struct ifnet *ifp; 491 usb_interface_descriptor_t *id; 492 usb_endpoint_descriptor_t *ed; 493 int i; 494 495 DPRINTFN(5,(" : cue_attach: sc=%p, dev=%p", sc, dev)); 496 497 sc->cue_dev = self; 498 499 aprint_naive("\n"); 500 aprint_normal("\n"); 501 502 devinfop = usbd_devinfo_alloc(dev, 0); 503 aprint_normal_dev(self, "%s\n", devinfop); 504 usbd_devinfo_free(devinfop); 505 506 err = usbd_set_config_no(dev, CUE_CONFIG_NO, 1); 507 if (err) { 508 aprint_error_dev(self, "setting config no failed\n"); 509 return; 510 } 511 512 sc->cue_udev = dev; 513 sc->cue_product = uaa->product; 514 sc->cue_vendor = uaa->vendor; 515 516 usb_init_task(&sc->cue_tick_task, cue_tick_task, sc); 517 usb_init_task(&sc->cue_stop_task, (void (*)(void *))cue_stop, sc); 518 519 err = usbd_device2interface_handle(dev, CUE_IFACE_IDX, &iface); 520 if (err) { 521 aprint_error_dev(self, "getting interface handle failed\n"); 522 return; 523 } 524 525 sc->cue_iface = iface; 526 id = usbd_get_interface_descriptor(iface); 527 528 /* Find endpoints. */ 529 for (i = 0; i < id->bNumEndpoints; i++) { 530 ed = usbd_interface2endpoint_descriptor(iface, i); 531 if (ed == NULL) { 532 aprint_error_dev(self, "couldn't get ep %d\n", i); 533 return; 534 } 535 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 536 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 537 sc->cue_ed[CUE_ENDPT_RX] = ed->bEndpointAddress; 538 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 539 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 540 sc->cue_ed[CUE_ENDPT_TX] = ed->bEndpointAddress; 541 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 542 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 543 sc->cue_ed[CUE_ENDPT_INTR] = ed->bEndpointAddress; 544 } 545 } 546 547 #if 0 548 /* Reset the adapter. */ 549 cue_reset(sc); 550 #endif 551 /* 552 * Get station address. 553 */ 554 cue_getmac(sc, &eaddr); 555 556 s = splnet(); 557 558 /* 559 * A CATC chip was detected. Inform the world. 560 */ 561 aprint_normal_dev(self, "Ethernet address %s\n", ether_sprintf(eaddr)); 562 563 /* Initialize interface info.*/ 564 ifp = GET_IFP(sc); 565 ifp->if_softc = sc; 566 ifp->if_mtu = ETHERMTU; 567 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 568 ifp->if_ioctl = cue_ioctl; 569 ifp->if_start = cue_start; 570 ifp->if_watchdog = cue_watchdog; 571 #if defined(__OpenBSD__) 572 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; 573 #endif 574 strncpy(ifp->if_xname, device_xname(sc->cue_dev), IFNAMSIZ); 575 576 IFQ_SET_READY(&ifp->if_snd); 577 578 /* Attach the interface. */ 579 if_attach(ifp); 580 ether_ifattach(ifp, eaddr); 581 #if NRND > 0 582 rnd_attach_source(&sc->rnd_source, device_xname(sc->cue_dev), 583 RND_TYPE_NET, 0); 584 #endif 585 586 callout_init(&(sc->cue_stat_ch), 0); 587 588 sc->cue_attached = 1; 589 splx(s); 590 591 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->cue_udev, sc->cue_dev); 592 593 return; 594 } 595 596 int 597 cue_detach(device_t self, int flags) 598 { 599 struct cue_softc *sc = device_private(self); 600 struct ifnet *ifp = GET_IFP(sc); 601 int s; 602 603 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 604 605 callout_stop(&sc->cue_stat_ch); 606 /* 607 * Remove any pending task. It cannot be executing because it run 608 * in the same thread as detach. 609 */ 610 usb_rem_task(sc->cue_udev, &sc->cue_tick_task); 611 usb_rem_task(sc->cue_udev, &sc->cue_stop_task); 612 613 if (!sc->cue_attached) { 614 /* Detached before attached finished, so just bail out. */ 615 return (0); 616 } 617 618 s = splusb(); 619 620 if (ifp->if_flags & IFF_RUNNING) 621 cue_stop(sc); 622 623 #if defined(__NetBSD__) 624 #if NRND > 0 625 rnd_detach_source(&sc->rnd_source); 626 #endif 627 ether_ifdetach(ifp); 628 #endif /* __NetBSD__ */ 629 630 if_detach(ifp); 631 632 #ifdef DIAGNOSTIC 633 if (sc->cue_ep[CUE_ENDPT_TX] != NULL || 634 sc->cue_ep[CUE_ENDPT_RX] != NULL || 635 sc->cue_ep[CUE_ENDPT_INTR] != NULL) 636 aprint_debug_dev(self, "detach has active endpoints\n"); 637 #endif 638 639 sc->cue_attached = 0; 640 splx(s); 641 642 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->cue_udev, sc->cue_dev); 643 644 return (0); 645 } 646 647 int 648 cue_activate(device_t self, enum devact act) 649 { 650 struct cue_softc *sc = device_private(self); 651 652 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 653 654 switch (act) { 655 case DVACT_DEACTIVATE: 656 /* Deactivate the interface. */ 657 if_deactivate(&sc->cue_ec.ec_if); 658 sc->cue_dying = 1; 659 return 0; 660 default: 661 return EOPNOTSUPP; 662 } 663 } 664 665 /* 666 * Initialize an RX descriptor and attach an MBUF cluster. 667 */ 668 Static int 669 cue_newbuf(struct cue_softc *sc, struct cue_chain *c, struct mbuf *m) 670 { 671 struct mbuf *m_new = NULL; 672 673 if (m == NULL) { 674 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 675 if (m_new == NULL) { 676 printf("%s: no memory for rx list " 677 "-- packet dropped!\n", device_xname(sc->cue_dev)); 678 return (ENOBUFS); 679 } 680 681 MCLGET(m_new, M_DONTWAIT); 682 if (!(m_new->m_flags & M_EXT)) { 683 printf("%s: no memory for rx list " 684 "-- packet dropped!\n", device_xname(sc->cue_dev)); 685 m_freem(m_new); 686 return (ENOBUFS); 687 } 688 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 689 } else { 690 m_new = m; 691 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 692 m_new->m_data = m_new->m_ext.ext_buf; 693 } 694 695 m_adj(m_new, ETHER_ALIGN); 696 c->cue_mbuf = m_new; 697 698 return (0); 699 } 700 701 Static int 702 cue_rx_list_init(struct cue_softc *sc) 703 { 704 struct cue_cdata *cd; 705 struct cue_chain *c; 706 int i; 707 708 cd = &sc->cue_cdata; 709 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 710 c = &cd->cue_rx_chain[i]; 711 c->cue_sc = sc; 712 c->cue_idx = i; 713 if (cue_newbuf(sc, c, NULL) == ENOBUFS) 714 return (ENOBUFS); 715 if (c->cue_xfer == NULL) { 716 c->cue_xfer = usbd_alloc_xfer(sc->cue_udev); 717 if (c->cue_xfer == NULL) 718 return (ENOBUFS); 719 c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ); 720 if (c->cue_buf == NULL) { 721 usbd_free_xfer(c->cue_xfer); 722 return (ENOBUFS); 723 } 724 } 725 } 726 727 return (0); 728 } 729 730 Static int 731 cue_tx_list_init(struct cue_softc *sc) 732 { 733 struct cue_cdata *cd; 734 struct cue_chain *c; 735 int i; 736 737 cd = &sc->cue_cdata; 738 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 739 c = &cd->cue_tx_chain[i]; 740 c->cue_sc = sc; 741 c->cue_idx = i; 742 c->cue_mbuf = NULL; 743 if (c->cue_xfer == NULL) { 744 c->cue_xfer = usbd_alloc_xfer(sc->cue_udev); 745 if (c->cue_xfer == NULL) 746 return (ENOBUFS); 747 c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ); 748 if (c->cue_buf == NULL) { 749 usbd_free_xfer(c->cue_xfer); 750 return (ENOBUFS); 751 } 752 } 753 } 754 755 return (0); 756 } 757 758 /* 759 * A frame has been uploaded: pass the resulting mbuf chain up to 760 * the higher level protocols. 761 */ 762 Static void 763 cue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 764 { 765 struct cue_chain *c = priv; 766 struct cue_softc *sc = c->cue_sc; 767 struct ifnet *ifp = GET_IFP(sc); 768 struct mbuf *m; 769 int total_len = 0; 770 u_int16_t len; 771 int s; 772 773 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->cue_dev), 774 __func__, status)); 775 776 if (sc->cue_dying) 777 return; 778 779 if (!(ifp->if_flags & IFF_RUNNING)) 780 return; 781 782 if (status != USBD_NORMAL_COMPLETION) { 783 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 784 return; 785 sc->cue_rx_errs++; 786 if (usbd_ratecheck(&sc->cue_rx_notice)) { 787 printf("%s: %u usb errors on rx: %s\n", 788 device_xname(sc->cue_dev), sc->cue_rx_errs, 789 usbd_errstr(status)); 790 sc->cue_rx_errs = 0; 791 } 792 if (status == USBD_STALLED) 793 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_RX]); 794 goto done; 795 } 796 797 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 798 799 memcpy(mtod(c->cue_mbuf, char *), c->cue_buf, total_len); 800 801 m = c->cue_mbuf; 802 len = UGETW(mtod(m, u_int8_t *)); 803 804 /* No errors; receive the packet. */ 805 total_len = len; 806 807 if (len < sizeof(struct ether_header)) { 808 ifp->if_ierrors++; 809 goto done; 810 } 811 812 ifp->if_ipackets++; 813 m_adj(m, sizeof(u_int16_t)); 814 m->m_pkthdr.len = m->m_len = total_len; 815 816 m->m_pkthdr.rcvif = ifp; 817 818 s = splnet(); 819 820 /* XXX ugly */ 821 if (cue_newbuf(sc, c, NULL) == ENOBUFS) { 822 ifp->if_ierrors++; 823 goto done1; 824 } 825 826 /* 827 * Handle BPF listeners. Let the BPF user see the packet, but 828 * don't pass it up to the ether_input() layer unless it's 829 * a broadcast packet, multicast packet, matches our ethernet 830 * address or the interface is in promiscuous mode. 831 */ 832 bpf_mtap(ifp, m); 833 834 DPRINTFN(10,("%s: %s: deliver %d\n", device_xname(sc->cue_dev), 835 __func__, m->m_len)); 836 (*(ifp)->if_input)((ifp), (m)); 837 done1: 838 splx(s); 839 840 done: 841 /* Setup new transfer. */ 842 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], 843 c, c->cue_buf, CUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 844 USBD_NO_TIMEOUT, cue_rxeof); 845 usbd_transfer(c->cue_xfer); 846 847 DPRINTFN(10,("%s: %s: start rx\n", device_xname(sc->cue_dev), 848 __func__)); 849 } 850 851 /* 852 * A frame was downloaded to the chip. It's safe for us to clean up 853 * the list buffers. 854 */ 855 Static void 856 cue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, 857 usbd_status status) 858 { 859 struct cue_chain *c = priv; 860 struct cue_softc *sc = c->cue_sc; 861 struct ifnet *ifp = GET_IFP(sc); 862 int s; 863 864 if (sc->cue_dying) 865 return; 866 867 s = splnet(); 868 869 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->cue_dev), 870 __func__, status)); 871 872 ifp->if_timer = 0; 873 ifp->if_flags &= ~IFF_OACTIVE; 874 875 if (status != USBD_NORMAL_COMPLETION) { 876 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 877 splx(s); 878 return; 879 } 880 ifp->if_oerrors++; 881 printf("%s: usb error on tx: %s\n", device_xname(sc->cue_dev), 882 usbd_errstr(status)); 883 if (status == USBD_STALLED) 884 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_TX]); 885 splx(s); 886 return; 887 } 888 889 ifp->if_opackets++; 890 891 m_freem(c->cue_mbuf); 892 c->cue_mbuf = NULL; 893 894 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 895 cue_start(ifp); 896 897 splx(s); 898 } 899 900 Static void 901 cue_tick(void *xsc) 902 { 903 struct cue_softc *sc = xsc; 904 905 if (sc == NULL) 906 return; 907 908 if (sc->cue_dying) 909 return; 910 911 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 912 913 /* Perform statistics update in process context. */ 914 usb_add_task(sc->cue_udev, &sc->cue_tick_task, USB_TASKQ_DRIVER); 915 } 916 917 Static void 918 cue_tick_task(void *xsc) 919 { 920 struct cue_softc *sc = xsc; 921 struct ifnet *ifp; 922 923 if (sc->cue_dying) 924 return; 925 926 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 927 928 ifp = GET_IFP(sc); 929 930 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_SINGLECOLL); 931 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_MULTICOLL); 932 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_EXCESSCOLL); 933 934 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR)) 935 ifp->if_ierrors++; 936 } 937 938 Static int 939 cue_send(struct cue_softc *sc, struct mbuf *m, int idx) 940 { 941 int total_len; 942 struct cue_chain *c; 943 usbd_status err; 944 945 c = &sc->cue_cdata.cue_tx_chain[idx]; 946 947 /* 948 * Copy the mbuf data into a contiguous buffer, leaving two 949 * bytes at the beginning to hold the frame length. 950 */ 951 m_copydata(m, 0, m->m_pkthdr.len, c->cue_buf + 2); 952 c->cue_mbuf = m; 953 954 total_len = m->m_pkthdr.len + 2; 955 956 DPRINTFN(10,("%s: %s: total_len=%d\n", 957 device_xname(sc->cue_dev), __func__, total_len)); 958 959 /* The first two bytes are the frame length */ 960 c->cue_buf[0] = (u_int8_t)m->m_pkthdr.len; 961 c->cue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8); 962 963 /* XXX 10000 */ 964 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_TX], 965 c, c->cue_buf, total_len, USBD_NO_COPY, 10000, cue_txeof); 966 967 /* Transmit */ 968 err = usbd_transfer(c->cue_xfer); 969 if (err != USBD_IN_PROGRESS) { 970 printf("%s: cue_send error=%s\n", device_xname(sc->cue_dev), 971 usbd_errstr(err)); 972 /* Stop the interface from process context. */ 973 usb_add_task(sc->cue_udev, &sc->cue_stop_task, 974 USB_TASKQ_DRIVER); 975 return (EIO); 976 } 977 978 sc->cue_cdata.cue_tx_cnt++; 979 980 return (0); 981 } 982 983 Static void 984 cue_start(struct ifnet *ifp) 985 { 986 struct cue_softc *sc = ifp->if_softc; 987 struct mbuf *m_head = NULL; 988 989 if (sc->cue_dying) 990 return; 991 992 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 993 994 if (ifp->if_flags & IFF_OACTIVE) 995 return; 996 997 IFQ_POLL(&ifp->if_snd, m_head); 998 if (m_head == NULL) 999 return; 1000 1001 if (cue_send(sc, m_head, 0)) { 1002 ifp->if_flags |= IFF_OACTIVE; 1003 return; 1004 } 1005 1006 IFQ_DEQUEUE(&ifp->if_snd, m_head); 1007 1008 /* 1009 * If there's a BPF listener, bounce a copy of this frame 1010 * to him. 1011 */ 1012 bpf_mtap(ifp, m_head); 1013 1014 ifp->if_flags |= IFF_OACTIVE; 1015 1016 /* 1017 * Set a timeout in case the chip goes out to lunch. 1018 */ 1019 ifp->if_timer = 5; 1020 } 1021 1022 Static void 1023 cue_init(void *xsc) 1024 { 1025 struct cue_softc *sc = xsc; 1026 struct ifnet *ifp = GET_IFP(sc); 1027 int i, s, ctl; 1028 const u_char *eaddr; 1029 1030 if (sc->cue_dying) 1031 return; 1032 1033 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 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 #if 1 1044 cue_reset(sc); 1045 #endif 1046 1047 /* Set advanced operation modes. */ 1048 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1049 CUE_AOP_EMBED_RXLEN | 0x03); /* 1 wait state */ 1050 1051 #if defined(__OpenBSD__) 1052 eaddr = sc->arpcom.ac_enaddr; 1053 #elif defined(__NetBSD__) 1054 eaddr = CLLADDR(ifp->if_sadl); 1055 #endif 1056 /* Set MAC address */ 1057 for (i = 0; i < ETHER_ADDR_LEN; i++) 1058 cue_csr_write_1(sc, CUE_PAR0 - i, eaddr[i]); 1059 1060 /* Enable RX logic. */ 1061 ctl = CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON; 1062 if (ifp->if_flags & IFF_PROMISC) 1063 ctl |= CUE_ETHCTL_PROMISC; 1064 cue_csr_write_1(sc, CUE_ETHCTL, ctl); 1065 1066 /* Init TX ring. */ 1067 if (cue_tx_list_init(sc) == ENOBUFS) { 1068 printf("%s: tx list init failed\n", device_xname(sc->cue_dev)); 1069 splx(s); 1070 return; 1071 } 1072 1073 /* Init RX ring. */ 1074 if (cue_rx_list_init(sc) == ENOBUFS) { 1075 printf("%s: rx list init failed\n", device_xname(sc->cue_dev)); 1076 splx(s); 1077 return; 1078 } 1079 1080 /* Load the multicast filter. */ 1081 cue_setmulti(sc); 1082 1083 /* 1084 * Set the number of RX and TX buffers that we want 1085 * to reserve inside the ASIC. 1086 */ 1087 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES); 1088 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES); 1089 1090 /* Set advanced operation modes. */ 1091 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1092 CUE_AOP_EMBED_RXLEN | 0x01); /* 1 wait state */ 1093 1094 /* Program the LED operation. */ 1095 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK); 1096 1097 if (sc->cue_ep[CUE_ENDPT_RX] == NULL) { 1098 if (cue_open_pipes(sc)) { 1099 splx(s); 1100 return; 1101 } 1102 } 1103 1104 ifp->if_flags |= IFF_RUNNING; 1105 ifp->if_flags &= ~IFF_OACTIVE; 1106 1107 splx(s); 1108 1109 callout_reset(&(sc->cue_stat_ch), (hz), (cue_tick), (sc)); 1110 } 1111 1112 Static int 1113 cue_open_pipes(struct cue_softc *sc) 1114 { 1115 struct cue_chain *c; 1116 usbd_status err; 1117 int i; 1118 1119 /* Open RX and TX pipes. */ 1120 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_RX], 1121 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_RX]); 1122 if (err) { 1123 printf("%s: open rx pipe failed: %s\n", 1124 device_xname(sc->cue_dev), usbd_errstr(err)); 1125 return (EIO); 1126 } 1127 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_TX], 1128 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_TX]); 1129 if (err) { 1130 printf("%s: open tx pipe failed: %s\n", 1131 device_xname(sc->cue_dev), usbd_errstr(err)); 1132 return (EIO); 1133 } 1134 1135 /* Start up the receive pipe. */ 1136 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1137 c = &sc->cue_cdata.cue_rx_chain[i]; 1138 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], 1139 c, c->cue_buf, CUE_BUFSZ, 1140 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 1141 cue_rxeof); 1142 usbd_transfer(c->cue_xfer); 1143 } 1144 1145 return (0); 1146 } 1147 1148 Static int 1149 cue_ioctl(struct ifnet *ifp, u_long command, void *data) 1150 { 1151 struct cue_softc *sc = ifp->if_softc; 1152 struct ifaddr *ifa = (struct ifaddr *)data; 1153 struct ifreq *ifr = (struct ifreq *)data; 1154 int s, error = 0; 1155 1156 if (sc->cue_dying) 1157 return (EIO); 1158 1159 s = splnet(); 1160 1161 switch(command) { 1162 case SIOCINITIFADDR: 1163 ifp->if_flags |= IFF_UP; 1164 cue_init(sc); 1165 1166 switch (ifa->ifa_addr->sa_family) { 1167 #ifdef INET 1168 case AF_INET: 1169 #if defined(__NetBSD__) 1170 arp_ifinit(ifp, ifa); 1171 #else 1172 arp_ifinit(&sc->arpcom, ifa); 1173 #endif 1174 break; 1175 #endif /* INET */ 1176 } 1177 break; 1178 1179 case SIOCSIFMTU: 1180 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 1181 error = EINVAL; 1182 else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) 1183 error = 0; 1184 break; 1185 1186 case SIOCSIFFLAGS: 1187 if ((error = ifioctl_common(ifp, command, data)) != 0) 1188 break; 1189 if (ifp->if_flags & IFF_UP) { 1190 if (ifp->if_flags & IFF_RUNNING && 1191 ifp->if_flags & IFF_PROMISC && 1192 !(sc->cue_if_flags & IFF_PROMISC)) { 1193 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1194 cue_setmulti(sc); 1195 } else if (ifp->if_flags & IFF_RUNNING && 1196 !(ifp->if_flags & IFF_PROMISC) && 1197 sc->cue_if_flags & IFF_PROMISC) { 1198 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1199 cue_setmulti(sc); 1200 } else if (!(ifp->if_flags & IFF_RUNNING)) 1201 cue_init(sc); 1202 } else { 1203 if (ifp->if_flags & IFF_RUNNING) 1204 cue_stop(sc); 1205 } 1206 sc->cue_if_flags = ifp->if_flags; 1207 error = 0; 1208 break; 1209 case SIOCADDMULTI: 1210 case SIOCDELMULTI: 1211 cue_setmulti(sc); 1212 error = 0; 1213 break; 1214 default: 1215 error = ether_ioctl(ifp, command, data); 1216 break; 1217 } 1218 1219 splx(s); 1220 1221 return (error); 1222 } 1223 1224 Static void 1225 cue_watchdog(struct ifnet *ifp) 1226 { 1227 struct cue_softc *sc = ifp->if_softc; 1228 struct cue_chain *c; 1229 usbd_status stat; 1230 int s; 1231 1232 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 1233 1234 if (sc->cue_dying) 1235 return; 1236 1237 ifp->if_oerrors++; 1238 printf("%s: watchdog timeout\n", device_xname(sc->cue_dev)); 1239 1240 s = splusb(); 1241 c = &sc->cue_cdata.cue_tx_chain[0]; 1242 usbd_get_xfer_status(c->cue_xfer, NULL, NULL, NULL, &stat); 1243 cue_txeof(c->cue_xfer, c, stat); 1244 1245 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1246 cue_start(ifp); 1247 splx(s); 1248 } 1249 1250 /* 1251 * Stop the adapter and free any mbufs allocated to the 1252 * RX and TX lists. 1253 */ 1254 Static void 1255 cue_stop(struct cue_softc *sc) 1256 { 1257 usbd_status err; 1258 struct ifnet *ifp; 1259 int i; 1260 1261 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 1262 1263 ifp = GET_IFP(sc); 1264 ifp->if_timer = 0; 1265 1266 cue_csr_write_1(sc, CUE_ETHCTL, 0); 1267 cue_reset(sc); 1268 callout_stop(&sc->cue_stat_ch); 1269 1270 /* Stop transfers. */ 1271 if (sc->cue_ep[CUE_ENDPT_RX] != NULL) { 1272 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1273 if (err) { 1274 printf("%s: abort rx pipe failed: %s\n", 1275 device_xname(sc->cue_dev), usbd_errstr(err)); 1276 } 1277 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1278 if (err) { 1279 printf("%s: close rx pipe failed: %s\n", 1280 device_xname(sc->cue_dev), usbd_errstr(err)); 1281 } 1282 sc->cue_ep[CUE_ENDPT_RX] = NULL; 1283 } 1284 1285 if (sc->cue_ep[CUE_ENDPT_TX] != NULL) { 1286 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1287 if (err) { 1288 printf("%s: abort tx pipe failed: %s\n", 1289 device_xname(sc->cue_dev), usbd_errstr(err)); 1290 } 1291 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1292 if (err) { 1293 printf("%s: close tx pipe failed: %s\n", 1294 device_xname(sc->cue_dev), usbd_errstr(err)); 1295 } 1296 sc->cue_ep[CUE_ENDPT_TX] = NULL; 1297 } 1298 1299 if (sc->cue_ep[CUE_ENDPT_INTR] != NULL) { 1300 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1301 if (err) { 1302 printf("%s: abort intr pipe failed: %s\n", 1303 device_xname(sc->cue_dev), usbd_errstr(err)); 1304 } 1305 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1306 if (err) { 1307 printf("%s: close intr pipe failed: %s\n", 1308 device_xname(sc->cue_dev), usbd_errstr(err)); 1309 } 1310 sc->cue_ep[CUE_ENDPT_INTR] = NULL; 1311 } 1312 1313 /* Free RX resources. */ 1314 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1315 if (sc->cue_cdata.cue_rx_chain[i].cue_mbuf != NULL) { 1316 m_freem(sc->cue_cdata.cue_rx_chain[i].cue_mbuf); 1317 sc->cue_cdata.cue_rx_chain[i].cue_mbuf = NULL; 1318 } 1319 if (sc->cue_cdata.cue_rx_chain[i].cue_xfer != NULL) { 1320 usbd_free_xfer(sc->cue_cdata.cue_rx_chain[i].cue_xfer); 1321 sc->cue_cdata.cue_rx_chain[i].cue_xfer = NULL; 1322 } 1323 } 1324 1325 /* Free TX resources. */ 1326 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 1327 if (sc->cue_cdata.cue_tx_chain[i].cue_mbuf != NULL) { 1328 m_freem(sc->cue_cdata.cue_tx_chain[i].cue_mbuf); 1329 sc->cue_cdata.cue_tx_chain[i].cue_mbuf = NULL; 1330 } 1331 if (sc->cue_cdata.cue_tx_chain[i].cue_xfer != NULL) { 1332 usbd_free_xfer(sc->cue_cdata.cue_tx_chain[i].cue_xfer); 1333 sc->cue_cdata.cue_tx_chain[i].cue_xfer = NULL; 1334 } 1335 } 1336 1337 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1338 } 1339