1 /* $NetBSD: if_cue.c,v 1.67 2013/01/22 14:03:19 jmcneill 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 1.67 2013/01/22 14:03:19 jmcneill Exp $"); 60 61 #ifdef _KERNEL_OPT 62 #include "opt_inet.h" 63 #endif 64 65 #include <sys/param.h> 66 #include <sys/systm.h> 67 #include <sys/callout.h> 68 #include <sys/sockio.h> 69 #include <sys/mbuf.h> 70 #include <sys/malloc.h> 71 #include <sys/kernel.h> 72 #include <sys/socket.h> 73 #include <sys/bus.h> 74 #include <sys/device.h> 75 #include <sys/rnd.h> 76 77 #include <net/if.h> 78 #include <net/if_arp.h> 79 #include <net/if_dl.h> 80 #include <net/bpf.h> 81 #include <net/if_ether.h> 82 83 #ifdef INET 84 #include <netinet/in.h> 85 #include <netinet/if_inarp.h> 86 #endif 87 88 #include <dev/usb/usb.h> 89 #include <dev/usb/usbdi.h> 90 #include <dev/usb/usbdi_util.h> 91 #include <dev/usb/usbdivar.h> 92 #include <dev/usb/usbdevs.h> 93 94 #include <dev/usb/if_cuereg.h> 95 96 #ifdef CUE_DEBUG 97 #define DPRINTF(x) if (cuedebug) printf x 98 #define DPRINTFN(n,x) if (cuedebug >= (n)) printf x 99 int cuedebug = 0; 100 #else 101 #define DPRINTF(x) 102 #define DPRINTFN(n,x) 103 #endif 104 105 /* 106 * Various supported device vendors/products. 107 */ 108 Static struct usb_devno cue_devs[] = { 109 { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE }, 110 { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE2 }, 111 { USB_VENDOR_SMARTBRIDGES, USB_PRODUCT_SMARTBRIDGES_SMARTLINK }, 112 /* Belkin F5U111 adapter covered by NETMATE entry */ 113 }; 114 #define cue_lookup(v, p) (usb_lookup(cue_devs, v, p)) 115 116 int cue_match(device_t, cfdata_t, void *); 117 void cue_attach(device_t, device_t, void *); 118 int cue_detach(device_t, int); 119 int cue_activate(device_t, enum devact); 120 extern struct cfdriver cue_cd; 121 CFATTACH_DECL_NEW(cue, sizeof(struct cue_softc), cue_match, cue_attach, 122 cue_detach, cue_activate); 123 124 Static int cue_open_pipes(struct cue_softc *); 125 Static int cue_tx_list_init(struct cue_softc *); 126 Static int cue_rx_list_init(struct cue_softc *); 127 Static int cue_newbuf(struct cue_softc *, struct cue_chain *, struct mbuf *); 128 Static int cue_send(struct cue_softc *, struct mbuf *, int); 129 Static void cue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 130 Static void cue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 131 Static void cue_tick(void *); 132 Static void cue_tick_task(void *); 133 Static void cue_start(struct ifnet *); 134 Static int cue_ioctl(struct ifnet *, u_long, void *); 135 Static void cue_init(void *); 136 Static void cue_stop(struct cue_softc *); 137 Static void cue_watchdog(struct ifnet *); 138 139 Static void cue_setmulti(struct cue_softc *); 140 Static u_int32_t cue_crc(const char *); 141 Static void cue_reset(struct cue_softc *); 142 143 Static int cue_csr_read_1(struct cue_softc *, int); 144 Static int cue_csr_write_1(struct cue_softc *, int, int); 145 Static int cue_csr_read_2(struct cue_softc *, int); 146 #if 0 147 Static int cue_csr_write_2(struct cue_softc *, int, int); 148 #endif 149 Static int cue_mem(struct cue_softc *, int, int, void *, int); 150 Static int cue_getmac(struct cue_softc *, void *); 151 152 #define CUE_SETBIT(sc, reg, x) \ 153 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x)) 154 155 #define CUE_CLRBIT(sc, reg, x) \ 156 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x)) 157 158 Static int 159 cue_csr_read_1(struct cue_softc *sc, int reg) 160 { 161 usb_device_request_t req; 162 usbd_status err; 163 u_int8_t val = 0; 164 165 if (sc->cue_dying) 166 return (0); 167 168 req.bmRequestType = UT_READ_VENDOR_DEVICE; 169 req.bRequest = CUE_CMD_READREG; 170 USETW(req.wValue, 0); 171 USETW(req.wIndex, reg); 172 USETW(req.wLength, 1); 173 174 err = usbd_do_request(sc->cue_udev, &req, &val); 175 176 if (err) { 177 DPRINTF(("%s: cue_csr_read_1: reg=0x%x err=%s\n", 178 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 179 return (0); 180 } 181 182 DPRINTFN(10,("%s: cue_csr_read_1 reg=0x%x val=0x%x\n", 183 device_xname(sc->cue_dev), reg, val)); 184 185 return (val); 186 } 187 188 Static int 189 cue_csr_read_2(struct cue_softc *sc, int reg) 190 { 191 usb_device_request_t req; 192 usbd_status err; 193 uWord val; 194 195 if (sc->cue_dying) 196 return (0); 197 198 req.bmRequestType = UT_READ_VENDOR_DEVICE; 199 req.bRequest = CUE_CMD_READREG; 200 USETW(req.wValue, 0); 201 USETW(req.wIndex, reg); 202 USETW(req.wLength, 2); 203 204 err = usbd_do_request(sc->cue_udev, &req, &val); 205 206 DPRINTFN(10,("%s: cue_csr_read_2 reg=0x%x val=0x%x\n", 207 device_xname(sc->cue_dev), reg, UGETW(val))); 208 209 if (err) { 210 DPRINTF(("%s: cue_csr_read_2: reg=0x%x err=%s\n", 211 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 212 return (0); 213 } 214 215 return (UGETW(val)); 216 } 217 218 Static int 219 cue_csr_write_1(struct cue_softc *sc, int reg, int val) 220 { 221 usb_device_request_t req; 222 usbd_status err; 223 224 if (sc->cue_dying) 225 return (0); 226 227 DPRINTFN(10,("%s: cue_csr_write_1 reg=0x%x val=0x%x\n", 228 device_xname(sc->cue_dev), reg, val)); 229 230 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 231 req.bRequest = CUE_CMD_WRITEREG; 232 USETW(req.wValue, val); 233 USETW(req.wIndex, reg); 234 USETW(req.wLength, 0); 235 236 err = usbd_do_request(sc->cue_udev, &req, NULL); 237 238 if (err) { 239 DPRINTF(("%s: cue_csr_write_1: reg=0x%x err=%s\n", 240 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 241 return (-1); 242 } 243 244 DPRINTFN(20,("%s: cue_csr_write_1, after reg=0x%x val=0x%x\n", 245 device_xname(sc->cue_dev), reg, cue_csr_read_1(sc, reg))); 246 247 return (0); 248 } 249 250 #if 0 251 Static int 252 cue_csr_write_2(struct cue_softc *sc, int reg, int aval) 253 { 254 usb_device_request_t req; 255 usbd_status err; 256 uWord val; 257 int s; 258 259 if (sc->cue_dying) 260 return (0); 261 262 DPRINTFN(10,("%s: cue_csr_write_2 reg=0x%x val=0x%x\n", 263 device_xname(sc->cue_dev), reg, aval)); 264 265 USETW(val, aval); 266 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 267 req.bRequest = CUE_CMD_WRITEREG; 268 USETW(req.wValue, val); 269 USETW(req.wIndex, reg); 270 USETW(req.wLength, 0); 271 272 err = usbd_do_request(sc->cue_udev, &req, NULL); 273 274 if (err) { 275 DPRINTF(("%s: cue_csr_write_2: reg=0x%x err=%s\n", 276 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 277 return (-1); 278 } 279 280 return (0); 281 } 282 #endif 283 284 Static int 285 cue_mem(struct cue_softc *sc, int cmd, int addr, void *buf, int len) 286 { 287 usb_device_request_t req; 288 usbd_status err; 289 290 DPRINTFN(10,("%s: cue_mem cmd=0x%x addr=0x%x len=%d\n", 291 device_xname(sc->cue_dev), cmd, addr, len)); 292 293 if (cmd == CUE_CMD_READSRAM) 294 req.bmRequestType = UT_READ_VENDOR_DEVICE; 295 else 296 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 297 req.bRequest = cmd; 298 USETW(req.wValue, 0); 299 USETW(req.wIndex, addr); 300 USETW(req.wLength, len); 301 302 err = usbd_do_request(sc->cue_udev, &req, buf); 303 304 if (err) { 305 DPRINTF(("%s: cue_csr_mem: addr=0x%x err=%s\n", 306 device_xname(sc->cue_dev), addr, usbd_errstr(err))); 307 return (-1); 308 } 309 310 return (0); 311 } 312 313 Static int 314 cue_getmac(struct cue_softc *sc, void *buf) 315 { 316 usb_device_request_t req; 317 usbd_status err; 318 319 DPRINTFN(10,("%s: cue_getmac\n", device_xname(sc->cue_dev))); 320 321 req.bmRequestType = UT_READ_VENDOR_DEVICE; 322 req.bRequest = CUE_CMD_GET_MACADDR; 323 USETW(req.wValue, 0); 324 USETW(req.wIndex, 0); 325 USETW(req.wLength, ETHER_ADDR_LEN); 326 327 err = usbd_do_request(sc->cue_udev, &req, buf); 328 329 if (err) { 330 printf("%s: read MAC address failed\n", 331 device_xname(sc->cue_dev)); 332 return (-1); 333 } 334 335 return (0); 336 } 337 338 #define CUE_POLY 0xEDB88320 339 #define CUE_BITS 9 340 341 Static u_int32_t 342 cue_crc(const char *addr) 343 { 344 u_int32_t idx, bit, data, crc; 345 346 /* Compute CRC for the address value. */ 347 crc = 0xFFFFFFFF; /* initial value */ 348 349 for (idx = 0; idx < 6; idx++) { 350 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) 351 crc = (crc >> 1) ^ (((crc ^ data) & 1) ? CUE_POLY : 0); 352 } 353 354 return (crc & ((1 << CUE_BITS) - 1)); 355 } 356 357 Static void 358 cue_setmulti(struct cue_softc *sc) 359 { 360 struct ifnet *ifp; 361 struct ether_multi *enm; 362 struct ether_multistep step; 363 u_int32_t h, i; 364 365 ifp = GET_IFP(sc); 366 367 DPRINTFN(2,("%s: cue_setmulti if_flags=0x%x\n", 368 device_xname(sc->cue_dev), ifp->if_flags)); 369 370 if (ifp->if_flags & IFF_PROMISC) { 371 allmulti: 372 ifp->if_flags |= IFF_ALLMULTI; 373 for (i = 0; i < CUE_MCAST_TABLE_LEN; i++) 374 sc->cue_mctab[i] = 0xFF; 375 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 376 &sc->cue_mctab, CUE_MCAST_TABLE_LEN); 377 return; 378 } 379 380 /* first, zot all the existing hash bits */ 381 for (i = 0; i < CUE_MCAST_TABLE_LEN; i++) 382 sc->cue_mctab[i] = 0; 383 384 /* now program new ones */ 385 ETHER_FIRST_MULTI(step, &sc->cue_ec, enm); 386 while (enm != NULL) { 387 if (memcmp(enm->enm_addrlo, 388 enm->enm_addrhi, ETHER_ADDR_LEN) != 0) 389 goto allmulti; 390 391 h = cue_crc(enm->enm_addrlo); 392 sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); 393 ETHER_NEXT_MULTI(step, enm); 394 } 395 396 ifp->if_flags &= ~IFF_ALLMULTI; 397 398 /* 399 * Also include the broadcast address in the filter 400 * so we can receive broadcast frames. 401 */ 402 if (ifp->if_flags & IFF_BROADCAST) { 403 h = cue_crc(etherbroadcastaddr); 404 sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); 405 } 406 407 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 408 &sc->cue_mctab, CUE_MCAST_TABLE_LEN); 409 } 410 411 Static void 412 cue_reset(struct cue_softc *sc) 413 { 414 usb_device_request_t req; 415 usbd_status err; 416 417 DPRINTFN(2,("%s: cue_reset\n", device_xname(sc->cue_dev))); 418 419 if (sc->cue_dying) 420 return; 421 422 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 423 req.bRequest = CUE_CMD_RESET; 424 USETW(req.wValue, 0); 425 USETW(req.wIndex, 0); 426 USETW(req.wLength, 0); 427 428 err = usbd_do_request(sc->cue_udev, &req, NULL); 429 430 if (err) 431 printf("%s: reset failed\n", device_xname(sc->cue_dev)); 432 433 /* Wait a little while for the chip to get its brains in order. */ 434 usbd_delay_ms(sc->cue_udev, 1); 435 } 436 437 /* 438 * Probe for a CATC chip. 439 */ 440 int 441 cue_match(device_t parent, cfdata_t match, void *aux) 442 { 443 struct usb_attach_arg *uaa = aux; 444 445 return (cue_lookup(uaa->vendor, uaa->product) != NULL ? 446 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 447 } 448 449 /* 450 * Attach the interface. Allocate softc structures, do ifmedia 451 * setup and ethernet/BPF attach. 452 */ 453 void 454 cue_attach(device_t parent, device_t self, void *aux) 455 { 456 struct cue_softc *sc = device_private(self); 457 struct usb_attach_arg *uaa = aux; 458 char *devinfop; 459 int s; 460 u_char eaddr[ETHER_ADDR_LEN]; 461 usbd_device_handle dev = uaa->device; 462 usbd_interface_handle iface; 463 usbd_status err; 464 struct ifnet *ifp; 465 usb_interface_descriptor_t *id; 466 usb_endpoint_descriptor_t *ed; 467 int i; 468 469 DPRINTFN(5,(" : cue_attach: sc=%p, dev=%p", sc, dev)); 470 471 sc->cue_dev = self; 472 473 aprint_naive("\n"); 474 aprint_normal("\n"); 475 476 devinfop = usbd_devinfo_alloc(dev, 0); 477 aprint_normal_dev(self, "%s\n", devinfop); 478 usbd_devinfo_free(devinfop); 479 480 err = usbd_set_config_no(dev, CUE_CONFIG_NO, 1); 481 if (err) { 482 aprint_error_dev(self, "failed to set configuration" 483 ", err=%s\n", usbd_errstr(err)); 484 return; 485 } 486 487 sc->cue_udev = dev; 488 sc->cue_product = uaa->product; 489 sc->cue_vendor = uaa->vendor; 490 491 usb_init_task(&sc->cue_tick_task, cue_tick_task, sc, 0); 492 usb_init_task(&sc->cue_stop_task, (void (*)(void *))cue_stop, sc, 0); 493 494 err = usbd_device2interface_handle(dev, CUE_IFACE_IDX, &iface); 495 if (err) { 496 aprint_error_dev(self, "getting interface handle failed\n"); 497 return; 498 } 499 500 sc->cue_iface = iface; 501 id = usbd_get_interface_descriptor(iface); 502 503 /* Find endpoints. */ 504 for (i = 0; i < id->bNumEndpoints; i++) { 505 ed = usbd_interface2endpoint_descriptor(iface, i); 506 if (ed == NULL) { 507 aprint_error_dev(self, "couldn't get ep %d\n", i); 508 return; 509 } 510 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 511 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 512 sc->cue_ed[CUE_ENDPT_RX] = ed->bEndpointAddress; 513 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 514 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 515 sc->cue_ed[CUE_ENDPT_TX] = ed->bEndpointAddress; 516 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 517 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 518 sc->cue_ed[CUE_ENDPT_INTR] = ed->bEndpointAddress; 519 } 520 } 521 522 #if 0 523 /* Reset the adapter. */ 524 cue_reset(sc); 525 #endif 526 /* 527 * Get station address. 528 */ 529 cue_getmac(sc, &eaddr); 530 531 s = splnet(); 532 533 /* 534 * A CATC chip was detected. Inform the world. 535 */ 536 aprint_normal_dev(self, "Ethernet address %s\n", ether_sprintf(eaddr)); 537 538 /* Initialize interface info.*/ 539 ifp = GET_IFP(sc); 540 ifp->if_softc = sc; 541 ifp->if_mtu = ETHERMTU; 542 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 543 ifp->if_ioctl = cue_ioctl; 544 ifp->if_start = cue_start; 545 ifp->if_watchdog = cue_watchdog; 546 strncpy(ifp->if_xname, device_xname(sc->cue_dev), IFNAMSIZ); 547 548 IFQ_SET_READY(&ifp->if_snd); 549 550 /* Attach the interface. */ 551 if_attach(ifp); 552 ether_ifattach(ifp, eaddr); 553 rnd_attach_source(&sc->rnd_source, device_xname(sc->cue_dev), 554 RND_TYPE_NET, 0); 555 556 callout_init(&(sc->cue_stat_ch), 0); 557 558 sc->cue_attached = 1; 559 splx(s); 560 561 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->cue_udev, sc->cue_dev); 562 563 return; 564 } 565 566 int 567 cue_detach(device_t self, int flags) 568 { 569 struct cue_softc *sc = device_private(self); 570 struct ifnet *ifp = GET_IFP(sc); 571 int s; 572 573 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 574 575 callout_stop(&sc->cue_stat_ch); 576 /* 577 * Remove any pending task. It cannot be executing because it run 578 * in the same thread as detach. 579 */ 580 usb_rem_task(sc->cue_udev, &sc->cue_tick_task); 581 usb_rem_task(sc->cue_udev, &sc->cue_stop_task); 582 583 if (!sc->cue_attached) { 584 /* Detached before attached finished, so just bail out. */ 585 return (0); 586 } 587 588 s = splusb(); 589 590 if (ifp->if_flags & IFF_RUNNING) 591 cue_stop(sc); 592 593 rnd_detach_source(&sc->rnd_source); 594 ether_ifdetach(ifp); 595 596 if_detach(ifp); 597 598 #ifdef DIAGNOSTIC 599 if (sc->cue_ep[CUE_ENDPT_TX] != NULL || 600 sc->cue_ep[CUE_ENDPT_RX] != NULL || 601 sc->cue_ep[CUE_ENDPT_INTR] != NULL) 602 aprint_debug_dev(self, "detach has active endpoints\n"); 603 #endif 604 605 sc->cue_attached = 0; 606 splx(s); 607 608 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->cue_udev, sc->cue_dev); 609 610 return (0); 611 } 612 613 int 614 cue_activate(device_t self, enum devact act) 615 { 616 struct cue_softc *sc = device_private(self); 617 618 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 619 620 switch (act) { 621 case DVACT_DEACTIVATE: 622 /* Deactivate the interface. */ 623 if_deactivate(&sc->cue_ec.ec_if); 624 sc->cue_dying = 1; 625 return 0; 626 default: 627 return EOPNOTSUPP; 628 } 629 } 630 631 /* 632 * Initialize an RX descriptor and attach an MBUF cluster. 633 */ 634 Static int 635 cue_newbuf(struct cue_softc *sc, struct cue_chain *c, struct mbuf *m) 636 { 637 struct mbuf *m_new = NULL; 638 639 if (m == NULL) { 640 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 641 if (m_new == NULL) { 642 printf("%s: no memory for rx list " 643 "-- packet dropped!\n", device_xname(sc->cue_dev)); 644 return (ENOBUFS); 645 } 646 647 MCLGET(m_new, M_DONTWAIT); 648 if (!(m_new->m_flags & M_EXT)) { 649 printf("%s: no memory for rx list " 650 "-- packet dropped!\n", device_xname(sc->cue_dev)); 651 m_freem(m_new); 652 return (ENOBUFS); 653 } 654 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 655 } else { 656 m_new = m; 657 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 658 m_new->m_data = m_new->m_ext.ext_buf; 659 } 660 661 m_adj(m_new, ETHER_ALIGN); 662 c->cue_mbuf = m_new; 663 664 return (0); 665 } 666 667 Static int 668 cue_rx_list_init(struct cue_softc *sc) 669 { 670 struct cue_cdata *cd; 671 struct cue_chain *c; 672 int i; 673 674 cd = &sc->cue_cdata; 675 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 676 c = &cd->cue_rx_chain[i]; 677 c->cue_sc = sc; 678 c->cue_idx = i; 679 if (cue_newbuf(sc, c, NULL) == ENOBUFS) 680 return (ENOBUFS); 681 if (c->cue_xfer == NULL) { 682 c->cue_xfer = usbd_alloc_xfer(sc->cue_udev); 683 if (c->cue_xfer == NULL) 684 return (ENOBUFS); 685 c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ); 686 if (c->cue_buf == NULL) { 687 usbd_free_xfer(c->cue_xfer); 688 return (ENOBUFS); 689 } 690 } 691 } 692 693 return (0); 694 } 695 696 Static int 697 cue_tx_list_init(struct cue_softc *sc) 698 { 699 struct cue_cdata *cd; 700 struct cue_chain *c; 701 int i; 702 703 cd = &sc->cue_cdata; 704 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 705 c = &cd->cue_tx_chain[i]; 706 c->cue_sc = sc; 707 c->cue_idx = i; 708 c->cue_mbuf = NULL; 709 if (c->cue_xfer == NULL) { 710 c->cue_xfer = usbd_alloc_xfer(sc->cue_udev); 711 if (c->cue_xfer == NULL) 712 return (ENOBUFS); 713 c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ); 714 if (c->cue_buf == NULL) { 715 usbd_free_xfer(c->cue_xfer); 716 return (ENOBUFS); 717 } 718 } 719 } 720 721 return (0); 722 } 723 724 /* 725 * A frame has been uploaded: pass the resulting mbuf chain up to 726 * the higher level protocols. 727 */ 728 Static void 729 cue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 730 { 731 struct cue_chain *c = priv; 732 struct cue_softc *sc = c->cue_sc; 733 struct ifnet *ifp = GET_IFP(sc); 734 struct mbuf *m; 735 int total_len = 0; 736 u_int16_t len; 737 int s; 738 739 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->cue_dev), 740 __func__, status)); 741 742 if (sc->cue_dying) 743 return; 744 745 if (!(ifp->if_flags & IFF_RUNNING)) 746 return; 747 748 if (status != USBD_NORMAL_COMPLETION) { 749 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 750 return; 751 sc->cue_rx_errs++; 752 if (usbd_ratecheck(&sc->cue_rx_notice)) { 753 printf("%s: %u usb errors on rx: %s\n", 754 device_xname(sc->cue_dev), sc->cue_rx_errs, 755 usbd_errstr(status)); 756 sc->cue_rx_errs = 0; 757 } 758 if (status == USBD_STALLED) 759 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_RX]); 760 goto done; 761 } 762 763 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 764 765 memcpy(mtod(c->cue_mbuf, char *), c->cue_buf, total_len); 766 767 m = c->cue_mbuf; 768 len = UGETW(mtod(m, u_int8_t *)); 769 770 /* No errors; receive the packet. */ 771 total_len = len; 772 773 if (len < sizeof(struct ether_header)) { 774 ifp->if_ierrors++; 775 goto done; 776 } 777 778 ifp->if_ipackets++; 779 m_adj(m, sizeof(u_int16_t)); 780 m->m_pkthdr.len = m->m_len = total_len; 781 782 m->m_pkthdr.rcvif = ifp; 783 784 s = splnet(); 785 786 /* XXX ugly */ 787 if (cue_newbuf(sc, c, NULL) == ENOBUFS) { 788 ifp->if_ierrors++; 789 goto done1; 790 } 791 792 /* 793 * Handle BPF listeners. Let the BPF user see the packet, but 794 * don't pass it up to the ether_input() layer unless it's 795 * a broadcast packet, multicast packet, matches our ethernet 796 * address or the interface is in promiscuous mode. 797 */ 798 bpf_mtap(ifp, m); 799 800 DPRINTFN(10,("%s: %s: deliver %d\n", device_xname(sc->cue_dev), 801 __func__, m->m_len)); 802 (*(ifp)->if_input)((ifp), (m)); 803 done1: 804 splx(s); 805 806 done: 807 /* Setup new transfer. */ 808 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], 809 c, c->cue_buf, CUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 810 USBD_NO_TIMEOUT, cue_rxeof); 811 usbd_transfer(c->cue_xfer); 812 813 DPRINTFN(10,("%s: %s: start rx\n", device_xname(sc->cue_dev), 814 __func__)); 815 } 816 817 /* 818 * A frame was downloaded to the chip. It's safe for us to clean up 819 * the list buffers. 820 */ 821 Static void 822 cue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, 823 usbd_status status) 824 { 825 struct cue_chain *c = priv; 826 struct cue_softc *sc = c->cue_sc; 827 struct ifnet *ifp = GET_IFP(sc); 828 int s; 829 830 if (sc->cue_dying) 831 return; 832 833 s = splnet(); 834 835 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->cue_dev), 836 __func__, status)); 837 838 ifp->if_timer = 0; 839 ifp->if_flags &= ~IFF_OACTIVE; 840 841 if (status != USBD_NORMAL_COMPLETION) { 842 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 843 splx(s); 844 return; 845 } 846 ifp->if_oerrors++; 847 printf("%s: usb error on tx: %s\n", device_xname(sc->cue_dev), 848 usbd_errstr(status)); 849 if (status == USBD_STALLED) 850 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_TX]); 851 splx(s); 852 return; 853 } 854 855 ifp->if_opackets++; 856 857 m_freem(c->cue_mbuf); 858 c->cue_mbuf = NULL; 859 860 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 861 cue_start(ifp); 862 863 splx(s); 864 } 865 866 Static void 867 cue_tick(void *xsc) 868 { 869 struct cue_softc *sc = xsc; 870 871 if (sc == NULL) 872 return; 873 874 if (sc->cue_dying) 875 return; 876 877 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 878 879 /* Perform statistics update in process context. */ 880 usb_add_task(sc->cue_udev, &sc->cue_tick_task, USB_TASKQ_DRIVER); 881 } 882 883 Static void 884 cue_tick_task(void *xsc) 885 { 886 struct cue_softc *sc = xsc; 887 struct ifnet *ifp; 888 889 if (sc->cue_dying) 890 return; 891 892 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 893 894 ifp = GET_IFP(sc); 895 896 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_SINGLECOLL); 897 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_MULTICOLL); 898 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_EXCESSCOLL); 899 900 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR)) 901 ifp->if_ierrors++; 902 } 903 904 Static int 905 cue_send(struct cue_softc *sc, struct mbuf *m, int idx) 906 { 907 int total_len; 908 struct cue_chain *c; 909 usbd_status err; 910 911 c = &sc->cue_cdata.cue_tx_chain[idx]; 912 913 /* 914 * Copy the mbuf data into a contiguous buffer, leaving two 915 * bytes at the beginning to hold the frame length. 916 */ 917 m_copydata(m, 0, m->m_pkthdr.len, c->cue_buf + 2); 918 c->cue_mbuf = m; 919 920 total_len = m->m_pkthdr.len + 2; 921 922 DPRINTFN(10,("%s: %s: total_len=%d\n", 923 device_xname(sc->cue_dev), __func__, total_len)); 924 925 /* The first two bytes are the frame length */ 926 c->cue_buf[0] = (u_int8_t)m->m_pkthdr.len; 927 c->cue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8); 928 929 /* XXX 10000 */ 930 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_TX], 931 c, c->cue_buf, total_len, USBD_NO_COPY, 10000, cue_txeof); 932 933 /* Transmit */ 934 err = usbd_transfer(c->cue_xfer); 935 if (err != USBD_IN_PROGRESS) { 936 printf("%s: cue_send error=%s\n", device_xname(sc->cue_dev), 937 usbd_errstr(err)); 938 /* Stop the interface from process context. */ 939 usb_add_task(sc->cue_udev, &sc->cue_stop_task, 940 USB_TASKQ_DRIVER); 941 return (EIO); 942 } 943 944 sc->cue_cdata.cue_tx_cnt++; 945 946 return (0); 947 } 948 949 Static void 950 cue_start(struct ifnet *ifp) 951 { 952 struct cue_softc *sc = ifp->if_softc; 953 struct mbuf *m_head = NULL; 954 955 if (sc->cue_dying) 956 return; 957 958 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 959 960 if (ifp->if_flags & IFF_OACTIVE) 961 return; 962 963 IFQ_POLL(&ifp->if_snd, m_head); 964 if (m_head == NULL) 965 return; 966 967 if (cue_send(sc, m_head, 0)) { 968 ifp->if_flags |= IFF_OACTIVE; 969 return; 970 } 971 972 IFQ_DEQUEUE(&ifp->if_snd, m_head); 973 974 /* 975 * If there's a BPF listener, bounce a copy of this frame 976 * to him. 977 */ 978 bpf_mtap(ifp, m_head); 979 980 ifp->if_flags |= IFF_OACTIVE; 981 982 /* 983 * Set a timeout in case the chip goes out to lunch. 984 */ 985 ifp->if_timer = 5; 986 } 987 988 Static void 989 cue_init(void *xsc) 990 { 991 struct cue_softc *sc = xsc; 992 struct ifnet *ifp = GET_IFP(sc); 993 int i, s, ctl; 994 const u_char *eaddr; 995 996 if (sc->cue_dying) 997 return; 998 999 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 1000 1001 if (ifp->if_flags & IFF_RUNNING) 1002 return; 1003 1004 s = splnet(); 1005 1006 /* 1007 * Cancel pending I/O and free all RX/TX buffers. 1008 */ 1009 #if 1 1010 cue_reset(sc); 1011 #endif 1012 1013 /* Set advanced operation modes. */ 1014 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1015 CUE_AOP_EMBED_RXLEN | 0x03); /* 1 wait state */ 1016 1017 eaddr = CLLADDR(ifp->if_sadl); 1018 /* Set MAC address */ 1019 for (i = 0; i < ETHER_ADDR_LEN; i++) 1020 cue_csr_write_1(sc, CUE_PAR0 - i, eaddr[i]); 1021 1022 /* Enable RX logic. */ 1023 ctl = CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON; 1024 if (ifp->if_flags & IFF_PROMISC) 1025 ctl |= CUE_ETHCTL_PROMISC; 1026 cue_csr_write_1(sc, CUE_ETHCTL, ctl); 1027 1028 /* Init TX ring. */ 1029 if (cue_tx_list_init(sc) == ENOBUFS) { 1030 printf("%s: tx list init failed\n", device_xname(sc->cue_dev)); 1031 splx(s); 1032 return; 1033 } 1034 1035 /* Init RX ring. */ 1036 if (cue_rx_list_init(sc) == ENOBUFS) { 1037 printf("%s: rx list init failed\n", device_xname(sc->cue_dev)); 1038 splx(s); 1039 return; 1040 } 1041 1042 /* Load the multicast filter. */ 1043 cue_setmulti(sc); 1044 1045 /* 1046 * Set the number of RX and TX buffers that we want 1047 * to reserve inside the ASIC. 1048 */ 1049 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES); 1050 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES); 1051 1052 /* Set advanced operation modes. */ 1053 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1054 CUE_AOP_EMBED_RXLEN | 0x01); /* 1 wait state */ 1055 1056 /* Program the LED operation. */ 1057 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK); 1058 1059 if (sc->cue_ep[CUE_ENDPT_RX] == NULL) { 1060 if (cue_open_pipes(sc)) { 1061 splx(s); 1062 return; 1063 } 1064 } 1065 1066 ifp->if_flags |= IFF_RUNNING; 1067 ifp->if_flags &= ~IFF_OACTIVE; 1068 1069 splx(s); 1070 1071 callout_reset(&(sc->cue_stat_ch), (hz), (cue_tick), (sc)); 1072 } 1073 1074 Static int 1075 cue_open_pipes(struct cue_softc *sc) 1076 { 1077 struct cue_chain *c; 1078 usbd_status err; 1079 int i; 1080 1081 /* Open RX and TX pipes. */ 1082 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_RX], 1083 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_RX]); 1084 if (err) { 1085 printf("%s: open rx pipe failed: %s\n", 1086 device_xname(sc->cue_dev), usbd_errstr(err)); 1087 return (EIO); 1088 } 1089 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_TX], 1090 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_TX]); 1091 if (err) { 1092 printf("%s: open tx pipe failed: %s\n", 1093 device_xname(sc->cue_dev), usbd_errstr(err)); 1094 return (EIO); 1095 } 1096 1097 /* Start up the receive pipe. */ 1098 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1099 c = &sc->cue_cdata.cue_rx_chain[i]; 1100 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], 1101 c, c->cue_buf, CUE_BUFSZ, 1102 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 1103 cue_rxeof); 1104 usbd_transfer(c->cue_xfer); 1105 } 1106 1107 return (0); 1108 } 1109 1110 Static int 1111 cue_ioctl(struct ifnet *ifp, u_long command, void *data) 1112 { 1113 struct cue_softc *sc = ifp->if_softc; 1114 struct ifaddr *ifa = (struct ifaddr *)data; 1115 struct ifreq *ifr = (struct ifreq *)data; 1116 int s, error = 0; 1117 1118 if (sc->cue_dying) 1119 return (EIO); 1120 1121 s = splnet(); 1122 1123 switch(command) { 1124 case SIOCINITIFADDR: 1125 ifp->if_flags |= IFF_UP; 1126 cue_init(sc); 1127 1128 switch (ifa->ifa_addr->sa_family) { 1129 #ifdef INET 1130 case AF_INET: 1131 arp_ifinit(ifp, ifa); 1132 break; 1133 #endif /* INET */ 1134 } 1135 break; 1136 1137 case SIOCSIFMTU: 1138 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 1139 error = EINVAL; 1140 else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) 1141 error = 0; 1142 break; 1143 1144 case SIOCSIFFLAGS: 1145 if ((error = ifioctl_common(ifp, command, data)) != 0) 1146 break; 1147 if (ifp->if_flags & IFF_UP) { 1148 if (ifp->if_flags & IFF_RUNNING && 1149 ifp->if_flags & IFF_PROMISC && 1150 !(sc->cue_if_flags & IFF_PROMISC)) { 1151 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1152 cue_setmulti(sc); 1153 } else if (ifp->if_flags & IFF_RUNNING && 1154 !(ifp->if_flags & IFF_PROMISC) && 1155 sc->cue_if_flags & IFF_PROMISC) { 1156 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1157 cue_setmulti(sc); 1158 } else if (!(ifp->if_flags & IFF_RUNNING)) 1159 cue_init(sc); 1160 } else { 1161 if (ifp->if_flags & IFF_RUNNING) 1162 cue_stop(sc); 1163 } 1164 sc->cue_if_flags = ifp->if_flags; 1165 error = 0; 1166 break; 1167 case SIOCADDMULTI: 1168 case SIOCDELMULTI: 1169 cue_setmulti(sc); 1170 error = 0; 1171 break; 1172 default: 1173 error = ether_ioctl(ifp, command, data); 1174 break; 1175 } 1176 1177 splx(s); 1178 1179 return (error); 1180 } 1181 1182 Static void 1183 cue_watchdog(struct ifnet *ifp) 1184 { 1185 struct cue_softc *sc = ifp->if_softc; 1186 struct cue_chain *c; 1187 usbd_status stat; 1188 int s; 1189 1190 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 1191 1192 if (sc->cue_dying) 1193 return; 1194 1195 ifp->if_oerrors++; 1196 printf("%s: watchdog timeout\n", device_xname(sc->cue_dev)); 1197 1198 s = splusb(); 1199 c = &sc->cue_cdata.cue_tx_chain[0]; 1200 usbd_get_xfer_status(c->cue_xfer, NULL, NULL, NULL, &stat); 1201 cue_txeof(c->cue_xfer, c, stat); 1202 1203 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1204 cue_start(ifp); 1205 splx(s); 1206 } 1207 1208 /* 1209 * Stop the adapter and free any mbufs allocated to the 1210 * RX and TX lists. 1211 */ 1212 Static void 1213 cue_stop(struct cue_softc *sc) 1214 { 1215 usbd_status err; 1216 struct ifnet *ifp; 1217 int i; 1218 1219 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 1220 1221 ifp = GET_IFP(sc); 1222 ifp->if_timer = 0; 1223 1224 cue_csr_write_1(sc, CUE_ETHCTL, 0); 1225 cue_reset(sc); 1226 callout_stop(&sc->cue_stat_ch); 1227 1228 /* Stop transfers. */ 1229 if (sc->cue_ep[CUE_ENDPT_RX] != NULL) { 1230 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1231 if (err) { 1232 printf("%s: abort rx pipe failed: %s\n", 1233 device_xname(sc->cue_dev), usbd_errstr(err)); 1234 } 1235 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1236 if (err) { 1237 printf("%s: close rx pipe failed: %s\n", 1238 device_xname(sc->cue_dev), usbd_errstr(err)); 1239 } 1240 sc->cue_ep[CUE_ENDPT_RX] = NULL; 1241 } 1242 1243 if (sc->cue_ep[CUE_ENDPT_TX] != NULL) { 1244 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1245 if (err) { 1246 printf("%s: abort tx pipe failed: %s\n", 1247 device_xname(sc->cue_dev), usbd_errstr(err)); 1248 } 1249 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1250 if (err) { 1251 printf("%s: close tx pipe failed: %s\n", 1252 device_xname(sc->cue_dev), usbd_errstr(err)); 1253 } 1254 sc->cue_ep[CUE_ENDPT_TX] = NULL; 1255 } 1256 1257 if (sc->cue_ep[CUE_ENDPT_INTR] != NULL) { 1258 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1259 if (err) { 1260 printf("%s: abort intr pipe failed: %s\n", 1261 device_xname(sc->cue_dev), usbd_errstr(err)); 1262 } 1263 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1264 if (err) { 1265 printf("%s: close intr pipe failed: %s\n", 1266 device_xname(sc->cue_dev), usbd_errstr(err)); 1267 } 1268 sc->cue_ep[CUE_ENDPT_INTR] = NULL; 1269 } 1270 1271 /* Free RX resources. */ 1272 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1273 if (sc->cue_cdata.cue_rx_chain[i].cue_mbuf != NULL) { 1274 m_freem(sc->cue_cdata.cue_rx_chain[i].cue_mbuf); 1275 sc->cue_cdata.cue_rx_chain[i].cue_mbuf = NULL; 1276 } 1277 if (sc->cue_cdata.cue_rx_chain[i].cue_xfer != NULL) { 1278 usbd_free_xfer(sc->cue_cdata.cue_rx_chain[i].cue_xfer); 1279 sc->cue_cdata.cue_rx_chain[i].cue_xfer = NULL; 1280 } 1281 } 1282 1283 /* Free TX resources. */ 1284 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 1285 if (sc->cue_cdata.cue_tx_chain[i].cue_mbuf != NULL) { 1286 m_freem(sc->cue_cdata.cue_tx_chain[i].cue_mbuf); 1287 sc->cue_cdata.cue_tx_chain[i].cue_mbuf = NULL; 1288 } 1289 if (sc->cue_cdata.cue_tx_chain[i].cue_xfer != NULL) { 1290 usbd_free_xfer(sc->cue_cdata.cue_tx_chain[i].cue_xfer); 1291 sc->cue_cdata.cue_tx_chain[i].cue_xfer = NULL; 1292 } 1293 } 1294 1295 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1296 } 1297