if_cue.c revision 1.61
1 /* $NetBSD: if_cue.c,v 1.61 2012/02/02 19:43:07 tls Exp $ */ 2 /* 3 * Copyright (c) 1997, 1998, 1999, 2000 4 * Bill Paul <wpaul (at) 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 (at) 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 1.61 2012/02/02 19:43:07 tls Exp $"); 60 61 #if defined(__NetBSD__) 62 #include "opt_inet.h" 63 #elif defined(__OpenBSD__) 64 #include "bpfilter.h" 65 #endif /* defined(__OpenBSD__) */ 66 67 #include <sys/param.h> 68 #include <sys/systm.h> 69 #if !defined(__OpenBSD__) 70 #include <sys/callout.h> 71 #endif 72 #include <sys/sockio.h> 73 #include <sys/mbuf.h> 74 #include <sys/malloc.h> 75 #include <sys/kernel.h> 76 #include <sys/socket.h> 77 78 #include <sys/device.h> 79 #include <sys/rnd.h> 80 81 #include <net/if.h> 82 #if defined(__NetBSD__) 83 #include <net/if_arp.h> 84 #endif 85 #include <net/if_dl.h> 86 87 #include <net/bpf.h> 88 89 #if defined(__NetBSD__) 90 #include <net/if_ether.h> 91 #ifdef INET 92 #include <netinet/in.h> 93 #include <netinet/if_inarp.h> 94 #endif 95 #endif /* defined(__NetBSD__) */ 96 97 #if defined(__OpenBSD__) 98 #ifdef INET 99 #include <netinet/in.h> 100 #include <netinet/in_systm.h> 101 #include <netinet/in_var.h> 102 #include <netinet/ip.h> 103 #include <netinet/if_ether.h> 104 #endif 105 #endif /* defined(__OpenBSD__) */ 106 107 108 #include <dev/usb/usb.h> 109 #include <dev/usb/usbdi.h> 110 #include <dev/usb/usbdi_util.h> 111 #include <dev/usb/usbdevs.h> 112 113 #include <dev/usb/if_cuereg.h> 114 115 #ifdef CUE_DEBUG 116 #define DPRINTF(x) if (cuedebug) printf x 117 #define DPRINTFN(n,x) if (cuedebug >= (n)) printf x 118 int cuedebug = 0; 119 #else 120 #define DPRINTF(x) 121 #define DPRINTFN(n,x) 122 #endif 123 124 /* 125 * Various supported device vendors/products. 126 */ 127 Static struct usb_devno cue_devs[] = { 128 { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE }, 129 { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE2 }, 130 { USB_VENDOR_SMARTBRIDGES, USB_PRODUCT_SMARTBRIDGES_SMARTLINK }, 131 /* Belkin F5U111 adapter covered by NETMATE entry */ 132 }; 133 #define cue_lookup(v, p) (usb_lookup(cue_devs, v, p)) 134 135 int cue_match(device_t, cfdata_t, void *); 136 void cue_attach(device_t, device_t, void *); 137 int cue_detach(device_t, int); 138 int cue_activate(device_t, enum devact); 139 extern struct cfdriver cue_cd; 140 CFATTACH_DECL_NEW(cue, sizeof(struct cue_softc), cue_match, cue_attach, 141 cue_detach, cue_activate); 142 143 Static int cue_open_pipes(struct cue_softc *); 144 Static int cue_tx_list_init(struct cue_softc *); 145 Static int cue_rx_list_init(struct cue_softc *); 146 Static int cue_newbuf(struct cue_softc *, struct cue_chain *, struct mbuf *); 147 Static int cue_send(struct cue_softc *, struct mbuf *, int); 148 Static void cue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 149 Static void cue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 150 Static void cue_tick(void *); 151 Static void cue_tick_task(void *); 152 Static void cue_start(struct ifnet *); 153 Static int cue_ioctl(struct ifnet *, u_long, void *); 154 Static void cue_init(void *); 155 Static void cue_stop(struct cue_softc *); 156 Static void cue_watchdog(struct ifnet *); 157 158 Static void cue_setmulti(struct cue_softc *); 159 Static u_int32_t cue_crc(const char *); 160 Static void cue_reset(struct cue_softc *); 161 162 Static int cue_csr_read_1(struct cue_softc *, int); 163 Static int cue_csr_write_1(struct cue_softc *, int, int); 164 Static int cue_csr_read_2(struct cue_softc *, int); 165 #if 0 166 Static int cue_csr_write_2(struct cue_softc *, int, int); 167 #endif 168 Static int cue_mem(struct cue_softc *, int, int, void *, int); 169 Static int cue_getmac(struct cue_softc *, void *); 170 171 #define CUE_SETBIT(sc, reg, x) \ 172 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x)) 173 174 #define CUE_CLRBIT(sc, reg, x) \ 175 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x)) 176 177 Static int 178 cue_csr_read_1(struct cue_softc *sc, int reg) 179 { 180 usb_device_request_t req; 181 usbd_status err; 182 u_int8_t val = 0; 183 184 if (sc->cue_dying) 185 return (0); 186 187 req.bmRequestType = UT_READ_VENDOR_DEVICE; 188 req.bRequest = CUE_CMD_READREG; 189 USETW(req.wValue, 0); 190 USETW(req.wIndex, reg); 191 USETW(req.wLength, 1); 192 193 err = usbd_do_request(sc->cue_udev, &req, &val); 194 195 if (err) { 196 DPRINTF(("%s: cue_csr_read_1: reg=0x%x err=%s\n", 197 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 198 return (0); 199 } 200 201 DPRINTFN(10,("%s: cue_csr_read_1 reg=0x%x val=0x%x\n", 202 device_xname(sc->cue_dev), reg, val)); 203 204 return (val); 205 } 206 207 Static int 208 cue_csr_read_2(struct cue_softc *sc, int reg) 209 { 210 usb_device_request_t req; 211 usbd_status err; 212 uWord val; 213 214 if (sc->cue_dying) 215 return (0); 216 217 req.bmRequestType = UT_READ_VENDOR_DEVICE; 218 req.bRequest = CUE_CMD_READREG; 219 USETW(req.wValue, 0); 220 USETW(req.wIndex, reg); 221 USETW(req.wLength, 2); 222 223 err = usbd_do_request(sc->cue_udev, &req, &val); 224 225 DPRINTFN(10,("%s: cue_csr_read_2 reg=0x%x val=0x%x\n", 226 device_xname(sc->cue_dev), reg, UGETW(val))); 227 228 if (err) { 229 DPRINTF(("%s: cue_csr_read_2: reg=0x%x err=%s\n", 230 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 231 return (0); 232 } 233 234 return (UGETW(val)); 235 } 236 237 Static int 238 cue_csr_write_1(struct cue_softc *sc, int reg, int val) 239 { 240 usb_device_request_t req; 241 usbd_status err; 242 243 if (sc->cue_dying) 244 return (0); 245 246 DPRINTFN(10,("%s: cue_csr_write_1 reg=0x%x val=0x%x\n", 247 device_xname(sc->cue_dev), reg, val)); 248 249 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 250 req.bRequest = CUE_CMD_WRITEREG; 251 USETW(req.wValue, val); 252 USETW(req.wIndex, reg); 253 USETW(req.wLength, 0); 254 255 err = usbd_do_request(sc->cue_udev, &req, NULL); 256 257 if (err) { 258 DPRINTF(("%s: cue_csr_write_1: reg=0x%x err=%s\n", 259 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 260 return (-1); 261 } 262 263 DPRINTFN(20,("%s: cue_csr_write_1, after reg=0x%x val=0x%x\n", 264 device_xname(sc->cue_dev), reg, cue_csr_read_1(sc, reg))); 265 266 return (0); 267 } 268 269 #if 0 270 Static int 271 cue_csr_write_2(struct cue_softc *sc, int reg, int aval) 272 { 273 usb_device_request_t req; 274 usbd_status err; 275 uWord val; 276 int s; 277 278 if (sc->cue_dying) 279 return (0); 280 281 DPRINTFN(10,("%s: cue_csr_write_2 reg=0x%x val=0x%x\n", 282 device_xname(sc->cue_dev), reg, aval)); 283 284 USETW(val, aval); 285 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 286 req.bRequest = CUE_CMD_WRITEREG; 287 USETW(req.wValue, val); 288 USETW(req.wIndex, reg); 289 USETW(req.wLength, 0); 290 291 err = usbd_do_request(sc->cue_udev, &req, NULL); 292 293 if (err) { 294 DPRINTF(("%s: cue_csr_write_2: reg=0x%x err=%s\n", 295 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 296 return (-1); 297 } 298 299 return (0); 300 } 301 #endif 302 303 Static int 304 cue_mem(struct cue_softc *sc, int cmd, int addr, void *buf, int len) 305 { 306 usb_device_request_t req; 307 usbd_status err; 308 309 DPRINTFN(10,("%s: cue_mem cmd=0x%x addr=0x%x len=%d\n", 310 device_xname(sc->cue_dev), cmd, addr, len)); 311 312 if (cmd == CUE_CMD_READSRAM) 313 req.bmRequestType = UT_READ_VENDOR_DEVICE; 314 else 315 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 316 req.bRequest = cmd; 317 USETW(req.wValue, 0); 318 USETW(req.wIndex, addr); 319 USETW(req.wLength, len); 320 321 err = usbd_do_request(sc->cue_udev, &req, buf); 322 323 if (err) { 324 DPRINTF(("%s: cue_csr_mem: addr=0x%x err=%s\n", 325 device_xname(sc->cue_dev), addr, usbd_errstr(err))); 326 return (-1); 327 } 328 329 return (0); 330 } 331 332 Static int 333 cue_getmac(struct cue_softc *sc, void *buf) 334 { 335 usb_device_request_t req; 336 usbd_status err; 337 338 DPRINTFN(10,("%s: cue_getmac\n", device_xname(sc->cue_dev))); 339 340 req.bmRequestType = UT_READ_VENDOR_DEVICE; 341 req.bRequest = CUE_CMD_GET_MACADDR; 342 USETW(req.wValue, 0); 343 USETW(req.wIndex, 0); 344 USETW(req.wLength, ETHER_ADDR_LEN); 345 346 err = usbd_do_request(sc->cue_udev, &req, buf); 347 348 if (err) { 349 printf("%s: read MAC address failed\n", 350 device_xname(sc->cue_dev)); 351 return (-1); 352 } 353 354 return (0); 355 } 356 357 #define CUE_POLY 0xEDB88320 358 #define CUE_BITS 9 359 360 Static u_int32_t 361 cue_crc(const char *addr) 362 { 363 u_int32_t idx, bit, data, crc; 364 365 /* Compute CRC for the address value. */ 366 crc = 0xFFFFFFFF; /* initial value */ 367 368 for (idx = 0; idx < 6; idx++) { 369 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) 370 crc = (crc >> 1) ^ (((crc ^ data) & 1) ? CUE_POLY : 0); 371 } 372 373 return (crc & ((1 << CUE_BITS) - 1)); 374 } 375 376 Static void 377 cue_setmulti(struct cue_softc *sc) 378 { 379 struct ifnet *ifp; 380 struct ether_multi *enm; 381 struct ether_multistep step; 382 u_int32_t h, i; 383 384 ifp = GET_IFP(sc); 385 386 DPRINTFN(2,("%s: cue_setmulti if_flags=0x%x\n", 387 device_xname(sc->cue_dev), ifp->if_flags)); 388 389 if (ifp->if_flags & IFF_PROMISC) { 390 allmulti: 391 ifp->if_flags |= IFF_ALLMULTI; 392 for (i = 0; i < CUE_MCAST_TABLE_LEN; i++) 393 sc->cue_mctab[i] = 0xFF; 394 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 395 &sc->cue_mctab, CUE_MCAST_TABLE_LEN); 396 return; 397 } 398 399 /* first, zot all the existing hash bits */ 400 for (i = 0; i < CUE_MCAST_TABLE_LEN; i++) 401 sc->cue_mctab[i] = 0; 402 403 /* now program new ones */ 404 #if defined(__NetBSD__) 405 ETHER_FIRST_MULTI(step, &sc->cue_ec, enm); 406 #else 407 ETHER_FIRST_MULTI(step, &sc->arpcom, enm); 408 #endif 409 while (enm != NULL) { 410 if (memcmp(enm->enm_addrlo, 411 enm->enm_addrhi, ETHER_ADDR_LEN) != 0) 412 goto allmulti; 413 414 h = cue_crc(enm->enm_addrlo); 415 sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); 416 ETHER_NEXT_MULTI(step, enm); 417 } 418 419 ifp->if_flags &= ~IFF_ALLMULTI; 420 421 /* 422 * Also include the broadcast address in the filter 423 * so we can receive broadcast frames. 424 */ 425 if (ifp->if_flags & IFF_BROADCAST) { 426 h = cue_crc(etherbroadcastaddr); 427 sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); 428 } 429 430 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 431 &sc->cue_mctab, CUE_MCAST_TABLE_LEN); 432 } 433 434 Static void 435 cue_reset(struct cue_softc *sc) 436 { 437 usb_device_request_t req; 438 usbd_status err; 439 440 DPRINTFN(2,("%s: cue_reset\n", device_xname(sc->cue_dev))); 441 442 if (sc->cue_dying) 443 return; 444 445 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 446 req.bRequest = CUE_CMD_RESET; 447 USETW(req.wValue, 0); 448 USETW(req.wIndex, 0); 449 USETW(req.wLength, 0); 450 451 err = usbd_do_request(sc->cue_udev, &req, NULL); 452 453 if (err) 454 printf("%s: reset failed\n", device_xname(sc->cue_dev)); 455 456 /* Wait a little while for the chip to get its brains in order. */ 457 usbd_delay_ms(sc->cue_udev, 1); 458 } 459 460 /* 461 * Probe for a CATC chip. 462 */ 463 int 464 cue_match(device_t parent, cfdata_t match, void *aux) 465 { 466 struct usb_attach_arg *uaa = aux; 467 468 return (cue_lookup(uaa->vendor, uaa->product) != NULL ? 469 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 470 } 471 472 /* 473 * Attach the interface. Allocate softc structures, do ifmedia 474 * setup and ethernet/BPF attach. 475 */ 476 void 477 cue_attach(device_t parent, device_t self, void *aux) 478 { 479 struct cue_softc *sc = device_private(self); 480 struct usb_attach_arg *uaa = aux; 481 char *devinfop; 482 int s; 483 u_char eaddr[ETHER_ADDR_LEN]; 484 usbd_device_handle dev = uaa->device; 485 usbd_interface_handle iface; 486 usbd_status err; 487 struct ifnet *ifp; 488 usb_interface_descriptor_t *id; 489 usb_endpoint_descriptor_t *ed; 490 int i; 491 492 DPRINTFN(5,(" : cue_attach: sc=%p, dev=%p", sc, dev)); 493 494 sc->cue_dev = self; 495 496 aprint_naive("\n"); 497 aprint_normal("\n"); 498 499 devinfop = usbd_devinfo_alloc(dev, 0); 500 aprint_normal_dev(self, "%s\n", devinfop); 501 usbd_devinfo_free(devinfop); 502 503 err = usbd_set_config_no(dev, CUE_CONFIG_NO, 1); 504 if (err) { 505 aprint_error_dev(self, "setting config no failed\n"); 506 return; 507 } 508 509 sc->cue_udev = dev; 510 sc->cue_product = uaa->product; 511 sc->cue_vendor = uaa->vendor; 512 513 usb_init_task(&sc->cue_tick_task, cue_tick_task, sc); 514 usb_init_task(&sc->cue_stop_task, (void (*)(void *))cue_stop, sc); 515 516 err = usbd_device2interface_handle(dev, CUE_IFACE_IDX, &iface); 517 if (err) { 518 aprint_error_dev(self, "getting interface handle failed\n"); 519 return; 520 } 521 522 sc->cue_iface = iface; 523 id = usbd_get_interface_descriptor(iface); 524 525 /* Find endpoints. */ 526 for (i = 0; i < id->bNumEndpoints; i++) { 527 ed = usbd_interface2endpoint_descriptor(iface, i); 528 if (ed == NULL) { 529 aprint_error_dev(self, "couldn't get ep %d\n", i); 530 return; 531 } 532 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 533 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 534 sc->cue_ed[CUE_ENDPT_RX] = ed->bEndpointAddress; 535 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 536 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 537 sc->cue_ed[CUE_ENDPT_TX] = ed->bEndpointAddress; 538 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 539 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 540 sc->cue_ed[CUE_ENDPT_INTR] = ed->bEndpointAddress; 541 } 542 } 543 544 #if 0 545 /* Reset the adapter. */ 546 cue_reset(sc); 547 #endif 548 /* 549 * Get station address. 550 */ 551 cue_getmac(sc, &eaddr); 552 553 s = splnet(); 554 555 /* 556 * A CATC chip was detected. Inform the world. 557 */ 558 aprint_normal_dev(self, "Ethernet address %s\n", ether_sprintf(eaddr)); 559 560 /* Initialize interface info.*/ 561 ifp = GET_IFP(sc); 562 ifp->if_softc = sc; 563 ifp->if_mtu = ETHERMTU; 564 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 565 ifp->if_ioctl = cue_ioctl; 566 ifp->if_start = cue_start; 567 ifp->if_watchdog = cue_watchdog; 568 #if defined(__OpenBSD__) 569 ifp->if_snd.ifq_maxlen = IFQ_MAXLEN; 570 #endif 571 strncpy(ifp->if_xname, device_xname(sc->cue_dev), IFNAMSIZ); 572 573 IFQ_SET_READY(&ifp->if_snd); 574 575 /* Attach the interface. */ 576 if_attach(ifp); 577 ether_ifattach(ifp, eaddr); 578 rnd_attach_source(&sc->rnd_source, device_xname(sc->cue_dev), 579 RND_TYPE_NET, 0); 580 581 callout_init(&(sc->cue_stat_ch), 0); 582 583 sc->cue_attached = 1; 584 splx(s); 585 586 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->cue_udev, sc->cue_dev); 587 588 return; 589 } 590 591 int 592 cue_detach(device_t self, int flags) 593 { 594 struct cue_softc *sc = device_private(self); 595 struct ifnet *ifp = GET_IFP(sc); 596 int s; 597 598 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 599 600 callout_stop(&sc->cue_stat_ch); 601 /* 602 * Remove any pending task. It cannot be executing because it run 603 * in the same thread as detach. 604 */ 605 usb_rem_task(sc->cue_udev, &sc->cue_tick_task); 606 usb_rem_task(sc->cue_udev, &sc->cue_stop_task); 607 608 if (!sc->cue_attached) { 609 /* Detached before attached finished, so just bail out. */ 610 return (0); 611 } 612 613 s = splusb(); 614 615 if (ifp->if_flags & IFF_RUNNING) 616 cue_stop(sc); 617 618 #if defined(__NetBSD__) 619 rnd_detach_source(&sc->rnd_source); 620 ether_ifdetach(ifp); 621 #endif /* __NetBSD__ */ 622 623 if_detach(ifp); 624 625 #ifdef DIAGNOSTIC 626 if (sc->cue_ep[CUE_ENDPT_TX] != NULL || 627 sc->cue_ep[CUE_ENDPT_RX] != NULL || 628 sc->cue_ep[CUE_ENDPT_INTR] != NULL) 629 aprint_debug_dev(self, "detach has active endpoints\n"); 630 #endif 631 632 sc->cue_attached = 0; 633 splx(s); 634 635 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->cue_udev, sc->cue_dev); 636 637 return (0); 638 } 639 640 int 641 cue_activate(device_t self, enum devact act) 642 { 643 struct cue_softc *sc = device_private(self); 644 645 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 646 647 switch (act) { 648 case DVACT_DEACTIVATE: 649 /* Deactivate the interface. */ 650 if_deactivate(&sc->cue_ec.ec_if); 651 sc->cue_dying = 1; 652 return 0; 653 default: 654 return EOPNOTSUPP; 655 } 656 } 657 658 /* 659 * Initialize an RX descriptor and attach an MBUF cluster. 660 */ 661 Static int 662 cue_newbuf(struct cue_softc *sc, struct cue_chain *c, struct mbuf *m) 663 { 664 struct mbuf *m_new = NULL; 665 666 if (m == NULL) { 667 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 668 if (m_new == NULL) { 669 printf("%s: no memory for rx list " 670 "-- packet dropped!\n", device_xname(sc->cue_dev)); 671 return (ENOBUFS); 672 } 673 674 MCLGET(m_new, M_DONTWAIT); 675 if (!(m_new->m_flags & M_EXT)) { 676 printf("%s: no memory for rx list " 677 "-- packet dropped!\n", device_xname(sc->cue_dev)); 678 m_freem(m_new); 679 return (ENOBUFS); 680 } 681 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 682 } else { 683 m_new = m; 684 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 685 m_new->m_data = m_new->m_ext.ext_buf; 686 } 687 688 m_adj(m_new, ETHER_ALIGN); 689 c->cue_mbuf = m_new; 690 691 return (0); 692 } 693 694 Static int 695 cue_rx_list_init(struct cue_softc *sc) 696 { 697 struct cue_cdata *cd; 698 struct cue_chain *c; 699 int i; 700 701 cd = &sc->cue_cdata; 702 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 703 c = &cd->cue_rx_chain[i]; 704 c->cue_sc = sc; 705 c->cue_idx = i; 706 if (cue_newbuf(sc, c, NULL) == ENOBUFS) 707 return (ENOBUFS); 708 if (c->cue_xfer == NULL) { 709 c->cue_xfer = usbd_alloc_xfer(sc->cue_udev); 710 if (c->cue_xfer == NULL) 711 return (ENOBUFS); 712 c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ); 713 if (c->cue_buf == NULL) { 714 usbd_free_xfer(c->cue_xfer); 715 return (ENOBUFS); 716 } 717 } 718 } 719 720 return (0); 721 } 722 723 Static int 724 cue_tx_list_init(struct cue_softc *sc) 725 { 726 struct cue_cdata *cd; 727 struct cue_chain *c; 728 int i; 729 730 cd = &sc->cue_cdata; 731 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 732 c = &cd->cue_tx_chain[i]; 733 c->cue_sc = sc; 734 c->cue_idx = i; 735 c->cue_mbuf = NULL; 736 if (c->cue_xfer == NULL) { 737 c->cue_xfer = usbd_alloc_xfer(sc->cue_udev); 738 if (c->cue_xfer == NULL) 739 return (ENOBUFS); 740 c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ); 741 if (c->cue_buf == NULL) { 742 usbd_free_xfer(c->cue_xfer); 743 return (ENOBUFS); 744 } 745 } 746 } 747 748 return (0); 749 } 750 751 /* 752 * A frame has been uploaded: pass the resulting mbuf chain up to 753 * the higher level protocols. 754 */ 755 Static void 756 cue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 757 { 758 struct cue_chain *c = priv; 759 struct cue_softc *sc = c->cue_sc; 760 struct ifnet *ifp = GET_IFP(sc); 761 struct mbuf *m; 762 int total_len = 0; 763 u_int16_t len; 764 int s; 765 766 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->cue_dev), 767 __func__, status)); 768 769 if (sc->cue_dying) 770 return; 771 772 if (!(ifp->if_flags & IFF_RUNNING)) 773 return; 774 775 if (status != USBD_NORMAL_COMPLETION) { 776 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 777 return; 778 sc->cue_rx_errs++; 779 if (usbd_ratecheck(&sc->cue_rx_notice)) { 780 printf("%s: %u usb errors on rx: %s\n", 781 device_xname(sc->cue_dev), sc->cue_rx_errs, 782 usbd_errstr(status)); 783 sc->cue_rx_errs = 0; 784 } 785 if (status == USBD_STALLED) 786 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_RX]); 787 goto done; 788 } 789 790 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 791 792 memcpy(mtod(c->cue_mbuf, char *), c->cue_buf, total_len); 793 794 m = c->cue_mbuf; 795 len = UGETW(mtod(m, u_int8_t *)); 796 797 /* No errors; receive the packet. */ 798 total_len = len; 799 800 if (len < sizeof(struct ether_header)) { 801 ifp->if_ierrors++; 802 goto done; 803 } 804 805 ifp->if_ipackets++; 806 m_adj(m, sizeof(u_int16_t)); 807 m->m_pkthdr.len = m->m_len = total_len; 808 809 m->m_pkthdr.rcvif = ifp; 810 811 s = splnet(); 812 813 /* XXX ugly */ 814 if (cue_newbuf(sc, c, NULL) == ENOBUFS) { 815 ifp->if_ierrors++; 816 goto done1; 817 } 818 819 /* 820 * Handle BPF listeners. Let the BPF user see the packet, but 821 * don't pass it up to the ether_input() layer unless it's 822 * a broadcast packet, multicast packet, matches our ethernet 823 * address or the interface is in promiscuous mode. 824 */ 825 bpf_mtap(ifp, m); 826 827 DPRINTFN(10,("%s: %s: deliver %d\n", device_xname(sc->cue_dev), 828 __func__, m->m_len)); 829 (*(ifp)->if_input)((ifp), (m)); 830 done1: 831 splx(s); 832 833 done: 834 /* Setup new transfer. */ 835 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], 836 c, c->cue_buf, CUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 837 USBD_NO_TIMEOUT, cue_rxeof); 838 usbd_transfer(c->cue_xfer); 839 840 DPRINTFN(10,("%s: %s: start rx\n", device_xname(sc->cue_dev), 841 __func__)); 842 } 843 844 /* 845 * A frame was downloaded to the chip. It's safe for us to clean up 846 * the list buffers. 847 */ 848 Static void 849 cue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, 850 usbd_status status) 851 { 852 struct cue_chain *c = priv; 853 struct cue_softc *sc = c->cue_sc; 854 struct ifnet *ifp = GET_IFP(sc); 855 int s; 856 857 if (sc->cue_dying) 858 return; 859 860 s = splnet(); 861 862 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->cue_dev), 863 __func__, status)); 864 865 ifp->if_timer = 0; 866 ifp->if_flags &= ~IFF_OACTIVE; 867 868 if (status != USBD_NORMAL_COMPLETION) { 869 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 870 splx(s); 871 return; 872 } 873 ifp->if_oerrors++; 874 printf("%s: usb error on tx: %s\n", device_xname(sc->cue_dev), 875 usbd_errstr(status)); 876 if (status == USBD_STALLED) 877 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_TX]); 878 splx(s); 879 return; 880 } 881 882 ifp->if_opackets++; 883 884 m_freem(c->cue_mbuf); 885 c->cue_mbuf = NULL; 886 887 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 888 cue_start(ifp); 889 890 splx(s); 891 } 892 893 Static void 894 cue_tick(void *xsc) 895 { 896 struct cue_softc *sc = xsc; 897 898 if (sc == NULL) 899 return; 900 901 if (sc->cue_dying) 902 return; 903 904 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 905 906 /* Perform statistics update in process context. */ 907 usb_add_task(sc->cue_udev, &sc->cue_tick_task, USB_TASKQ_DRIVER); 908 } 909 910 Static void 911 cue_tick_task(void *xsc) 912 { 913 struct cue_softc *sc = xsc; 914 struct ifnet *ifp; 915 916 if (sc->cue_dying) 917 return; 918 919 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 920 921 ifp = GET_IFP(sc); 922 923 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_SINGLECOLL); 924 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_MULTICOLL); 925 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_EXCESSCOLL); 926 927 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR)) 928 ifp->if_ierrors++; 929 } 930 931 Static int 932 cue_send(struct cue_softc *sc, struct mbuf *m, int idx) 933 { 934 int total_len; 935 struct cue_chain *c; 936 usbd_status err; 937 938 c = &sc->cue_cdata.cue_tx_chain[idx]; 939 940 /* 941 * Copy the mbuf data into a contiguous buffer, leaving two 942 * bytes at the beginning to hold the frame length. 943 */ 944 m_copydata(m, 0, m->m_pkthdr.len, c->cue_buf + 2); 945 c->cue_mbuf = m; 946 947 total_len = m->m_pkthdr.len + 2; 948 949 DPRINTFN(10,("%s: %s: total_len=%d\n", 950 device_xname(sc->cue_dev), __func__, total_len)); 951 952 /* The first two bytes are the frame length */ 953 c->cue_buf[0] = (u_int8_t)m->m_pkthdr.len; 954 c->cue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8); 955 956 /* XXX 10000 */ 957 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_TX], 958 c, c->cue_buf, total_len, USBD_NO_COPY, 10000, cue_txeof); 959 960 /* Transmit */ 961 err = usbd_transfer(c->cue_xfer); 962 if (err != USBD_IN_PROGRESS) { 963 printf("%s: cue_send error=%s\n", device_xname(sc->cue_dev), 964 usbd_errstr(err)); 965 /* Stop the interface from process context. */ 966 usb_add_task(sc->cue_udev, &sc->cue_stop_task, 967 USB_TASKQ_DRIVER); 968 return (EIO); 969 } 970 971 sc->cue_cdata.cue_tx_cnt++; 972 973 return (0); 974 } 975 976 Static void 977 cue_start(struct ifnet *ifp) 978 { 979 struct cue_softc *sc = ifp->if_softc; 980 struct mbuf *m_head = NULL; 981 982 if (sc->cue_dying) 983 return; 984 985 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 986 987 if (ifp->if_flags & IFF_OACTIVE) 988 return; 989 990 IFQ_POLL(&ifp->if_snd, m_head); 991 if (m_head == NULL) 992 return; 993 994 if (cue_send(sc, m_head, 0)) { 995 ifp->if_flags |= IFF_OACTIVE; 996 return; 997 } 998 999 IFQ_DEQUEUE(&ifp->if_snd, m_head); 1000 1001 /* 1002 * If there's a BPF listener, bounce a copy of this frame 1003 * to him. 1004 */ 1005 bpf_mtap(ifp, m_head); 1006 1007 ifp->if_flags |= IFF_OACTIVE; 1008 1009 /* 1010 * Set a timeout in case the chip goes out to lunch. 1011 */ 1012 ifp->if_timer = 5; 1013 } 1014 1015 Static void 1016 cue_init(void *xsc) 1017 { 1018 struct cue_softc *sc = xsc; 1019 struct ifnet *ifp = GET_IFP(sc); 1020 int i, s, ctl; 1021 const u_char *eaddr; 1022 1023 if (sc->cue_dying) 1024 return; 1025 1026 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 1027 1028 if (ifp->if_flags & IFF_RUNNING) 1029 return; 1030 1031 s = splnet(); 1032 1033 /* 1034 * Cancel pending I/O and free all RX/TX buffers. 1035 */ 1036 #if 1 1037 cue_reset(sc); 1038 #endif 1039 1040 /* Set advanced operation modes. */ 1041 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1042 CUE_AOP_EMBED_RXLEN | 0x03); /* 1 wait state */ 1043 1044 #if defined(__OpenBSD__) 1045 eaddr = sc->arpcom.ac_enaddr; 1046 #elif defined(__NetBSD__) 1047 eaddr = CLLADDR(ifp->if_sadl); 1048 #endif 1049 /* Set MAC address */ 1050 for (i = 0; i < ETHER_ADDR_LEN; i++) 1051 cue_csr_write_1(sc, CUE_PAR0 - i, eaddr[i]); 1052 1053 /* Enable RX logic. */ 1054 ctl = CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON; 1055 if (ifp->if_flags & IFF_PROMISC) 1056 ctl |= CUE_ETHCTL_PROMISC; 1057 cue_csr_write_1(sc, CUE_ETHCTL, ctl); 1058 1059 /* Init TX ring. */ 1060 if (cue_tx_list_init(sc) == ENOBUFS) { 1061 printf("%s: tx list init failed\n", device_xname(sc->cue_dev)); 1062 splx(s); 1063 return; 1064 } 1065 1066 /* Init RX ring. */ 1067 if (cue_rx_list_init(sc) == ENOBUFS) { 1068 printf("%s: rx list init failed\n", device_xname(sc->cue_dev)); 1069 splx(s); 1070 return; 1071 } 1072 1073 /* Load the multicast filter. */ 1074 cue_setmulti(sc); 1075 1076 /* 1077 * Set the number of RX and TX buffers that we want 1078 * to reserve inside the ASIC. 1079 */ 1080 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES); 1081 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES); 1082 1083 /* Set advanced operation modes. */ 1084 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1085 CUE_AOP_EMBED_RXLEN | 0x01); /* 1 wait state */ 1086 1087 /* Program the LED operation. */ 1088 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK); 1089 1090 if (sc->cue_ep[CUE_ENDPT_RX] == NULL) { 1091 if (cue_open_pipes(sc)) { 1092 splx(s); 1093 return; 1094 } 1095 } 1096 1097 ifp->if_flags |= IFF_RUNNING; 1098 ifp->if_flags &= ~IFF_OACTIVE; 1099 1100 splx(s); 1101 1102 callout_reset(&(sc->cue_stat_ch), (hz), (cue_tick), (sc)); 1103 } 1104 1105 Static int 1106 cue_open_pipes(struct cue_softc *sc) 1107 { 1108 struct cue_chain *c; 1109 usbd_status err; 1110 int i; 1111 1112 /* Open RX and TX pipes. */ 1113 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_RX], 1114 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_RX]); 1115 if (err) { 1116 printf("%s: open rx pipe failed: %s\n", 1117 device_xname(sc->cue_dev), usbd_errstr(err)); 1118 return (EIO); 1119 } 1120 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_TX], 1121 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_TX]); 1122 if (err) { 1123 printf("%s: open tx pipe failed: %s\n", 1124 device_xname(sc->cue_dev), usbd_errstr(err)); 1125 return (EIO); 1126 } 1127 1128 /* Start up the receive pipe. */ 1129 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1130 c = &sc->cue_cdata.cue_rx_chain[i]; 1131 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], 1132 c, c->cue_buf, CUE_BUFSZ, 1133 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 1134 cue_rxeof); 1135 usbd_transfer(c->cue_xfer); 1136 } 1137 1138 return (0); 1139 } 1140 1141 Static int 1142 cue_ioctl(struct ifnet *ifp, u_long command, void *data) 1143 { 1144 struct cue_softc *sc = ifp->if_softc; 1145 struct ifaddr *ifa = (struct ifaddr *)data; 1146 struct ifreq *ifr = (struct ifreq *)data; 1147 int s, error = 0; 1148 1149 if (sc->cue_dying) 1150 return (EIO); 1151 1152 s = splnet(); 1153 1154 switch(command) { 1155 case SIOCINITIFADDR: 1156 ifp->if_flags |= IFF_UP; 1157 cue_init(sc); 1158 1159 switch (ifa->ifa_addr->sa_family) { 1160 #ifdef INET 1161 case AF_INET: 1162 #if defined(__NetBSD__) 1163 arp_ifinit(ifp, ifa); 1164 #else 1165 arp_ifinit(&sc->arpcom, ifa); 1166 #endif 1167 break; 1168 #endif /* INET */ 1169 } 1170 break; 1171 1172 case SIOCSIFMTU: 1173 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 1174 error = EINVAL; 1175 else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) 1176 error = 0; 1177 break; 1178 1179 case SIOCSIFFLAGS: 1180 if ((error = ifioctl_common(ifp, command, data)) != 0) 1181 break; 1182 if (ifp->if_flags & IFF_UP) { 1183 if (ifp->if_flags & IFF_RUNNING && 1184 ifp->if_flags & IFF_PROMISC && 1185 !(sc->cue_if_flags & IFF_PROMISC)) { 1186 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1187 cue_setmulti(sc); 1188 } else if (ifp->if_flags & IFF_RUNNING && 1189 !(ifp->if_flags & IFF_PROMISC) && 1190 sc->cue_if_flags & IFF_PROMISC) { 1191 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1192 cue_setmulti(sc); 1193 } else if (!(ifp->if_flags & IFF_RUNNING)) 1194 cue_init(sc); 1195 } else { 1196 if (ifp->if_flags & IFF_RUNNING) 1197 cue_stop(sc); 1198 } 1199 sc->cue_if_flags = ifp->if_flags; 1200 error = 0; 1201 break; 1202 case SIOCADDMULTI: 1203 case SIOCDELMULTI: 1204 cue_setmulti(sc); 1205 error = 0; 1206 break; 1207 default: 1208 error = ether_ioctl(ifp, command, data); 1209 break; 1210 } 1211 1212 splx(s); 1213 1214 return (error); 1215 } 1216 1217 Static void 1218 cue_watchdog(struct ifnet *ifp) 1219 { 1220 struct cue_softc *sc = ifp->if_softc; 1221 struct cue_chain *c; 1222 usbd_status stat; 1223 int s; 1224 1225 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 1226 1227 if (sc->cue_dying) 1228 return; 1229 1230 ifp->if_oerrors++; 1231 printf("%s: watchdog timeout\n", device_xname(sc->cue_dev)); 1232 1233 s = splusb(); 1234 c = &sc->cue_cdata.cue_tx_chain[0]; 1235 usbd_get_xfer_status(c->cue_xfer, NULL, NULL, NULL, &stat); 1236 cue_txeof(c->cue_xfer, c, stat); 1237 1238 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1239 cue_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 cue_stop(struct cue_softc *sc) 1249 { 1250 usbd_status err; 1251 struct ifnet *ifp; 1252 int i; 1253 1254 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 1255 1256 ifp = GET_IFP(sc); 1257 ifp->if_timer = 0; 1258 1259 cue_csr_write_1(sc, CUE_ETHCTL, 0); 1260 cue_reset(sc); 1261 callout_stop(&sc->cue_stat_ch); 1262 1263 /* Stop transfers. */ 1264 if (sc->cue_ep[CUE_ENDPT_RX] != NULL) { 1265 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1266 if (err) { 1267 printf("%s: abort rx pipe failed: %s\n", 1268 device_xname(sc->cue_dev), usbd_errstr(err)); 1269 } 1270 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1271 if (err) { 1272 printf("%s: close rx pipe failed: %s\n", 1273 device_xname(sc->cue_dev), usbd_errstr(err)); 1274 } 1275 sc->cue_ep[CUE_ENDPT_RX] = NULL; 1276 } 1277 1278 if (sc->cue_ep[CUE_ENDPT_TX] != NULL) { 1279 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1280 if (err) { 1281 printf("%s: abort tx pipe failed: %s\n", 1282 device_xname(sc->cue_dev), usbd_errstr(err)); 1283 } 1284 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1285 if (err) { 1286 printf("%s: close tx pipe failed: %s\n", 1287 device_xname(sc->cue_dev), usbd_errstr(err)); 1288 } 1289 sc->cue_ep[CUE_ENDPT_TX] = NULL; 1290 } 1291 1292 if (sc->cue_ep[CUE_ENDPT_INTR] != NULL) { 1293 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1294 if (err) { 1295 printf("%s: abort intr pipe failed: %s\n", 1296 device_xname(sc->cue_dev), usbd_errstr(err)); 1297 } 1298 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1299 if (err) { 1300 printf("%s: close intr pipe failed: %s\n", 1301 device_xname(sc->cue_dev), usbd_errstr(err)); 1302 } 1303 sc->cue_ep[CUE_ENDPT_INTR] = NULL; 1304 } 1305 1306 /* Free RX resources. */ 1307 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1308 if (sc->cue_cdata.cue_rx_chain[i].cue_mbuf != NULL) { 1309 m_freem(sc->cue_cdata.cue_rx_chain[i].cue_mbuf); 1310 sc->cue_cdata.cue_rx_chain[i].cue_mbuf = NULL; 1311 } 1312 if (sc->cue_cdata.cue_rx_chain[i].cue_xfer != NULL) { 1313 usbd_free_xfer(sc->cue_cdata.cue_rx_chain[i].cue_xfer); 1314 sc->cue_cdata.cue_rx_chain[i].cue_xfer = NULL; 1315 } 1316 } 1317 1318 /* Free TX resources. */ 1319 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 1320 if (sc->cue_cdata.cue_tx_chain[i].cue_mbuf != NULL) { 1321 m_freem(sc->cue_cdata.cue_tx_chain[i].cue_mbuf); 1322 sc->cue_cdata.cue_tx_chain[i].cue_mbuf = NULL; 1323 } 1324 if (sc->cue_cdata.cue_tx_chain[i].cue_xfer != NULL) { 1325 usbd_free_xfer(sc->cue_cdata.cue_tx_chain[i].cue_xfer); 1326 sc->cue_cdata.cue_tx_chain[i].cue_xfer = NULL; 1327 } 1328 } 1329 1330 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1331 } 1332
Indexes created Fri Oct 03 02:09:57 GMT 2025