1 /* $NetBSD: if_cue.c,v 1.70 2015/04/14 21:09:48 riastradh 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 1.70 2015/04/14 21:09:48 riastradh 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 76 #include <net/if.h> 77 #include <net/if_arp.h> 78 #include <net/if_dl.h> 79 #include <net/bpf.h> 80 #include <net/if_ether.h> 81 82 #ifdef INET 83 #include <netinet/in.h> 84 #include <netinet/if_inarp.h> 85 #endif 86 87 #include <dev/usb/usb.h> 88 #include <dev/usb/usbdi.h> 89 #include <dev/usb/usbdi_util.h> 90 #include <dev/usb/usbdivar.h> 91 #include <dev/usb/usbdevs.h> 92 93 #include <dev/usb/if_cuereg.h> 94 95 #ifdef CUE_DEBUG 96 #define DPRINTF(x) if (cuedebug) printf x 97 #define DPRINTFN(n,x) if (cuedebug >= (n)) printf x 98 int cuedebug = 0; 99 #else 100 #define DPRINTF(x) 101 #define DPRINTFN(n,x) 102 #endif 103 104 /* 105 * Various supported device vendors/products. 106 */ 107 Static struct usb_devno cue_devs[] = { 108 { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE }, 109 { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE2 }, 110 { USB_VENDOR_SMARTBRIDGES, USB_PRODUCT_SMARTBRIDGES_SMARTLINK }, 111 /* Belkin F5U111 adapter covered by NETMATE entry */ 112 }; 113 #define cue_lookup(v, p) (usb_lookup(cue_devs, v, p)) 114 115 int cue_match(device_t, cfdata_t, void *); 116 void cue_attach(device_t, device_t, void *); 117 int cue_detach(device_t, int); 118 int cue_activate(device_t, enum devact); 119 extern struct cfdriver cue_cd; 120 CFATTACH_DECL_NEW(cue, sizeof(struct cue_softc), cue_match, cue_attach, 121 cue_detach, cue_activate); 122 123 Static int cue_open_pipes(struct cue_softc *); 124 Static int cue_tx_list_init(struct cue_softc *); 125 Static int cue_rx_list_init(struct cue_softc *); 126 Static int cue_newbuf(struct cue_softc *, struct cue_chain *, struct mbuf *); 127 Static int cue_send(struct cue_softc *, struct mbuf *, int); 128 Static void cue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 129 Static void cue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 130 Static void cue_tick(void *); 131 Static void cue_tick_task(void *); 132 Static void cue_start(struct ifnet *); 133 Static int cue_ioctl(struct ifnet *, u_long, void *); 134 Static void cue_init(void *); 135 Static void cue_stop(struct cue_softc *); 136 Static void cue_watchdog(struct ifnet *); 137 138 Static void cue_setmulti(struct cue_softc *); 139 Static u_int32_t cue_crc(const char *); 140 Static void cue_reset(struct cue_softc *); 141 142 Static int cue_csr_read_1(struct cue_softc *, int); 143 Static int cue_csr_write_1(struct cue_softc *, int, int); 144 Static int cue_csr_read_2(struct cue_softc *, int); 145 #if 0 146 Static int cue_csr_write_2(struct cue_softc *, int, int); 147 #endif 148 Static int cue_mem(struct cue_softc *, int, int, void *, int); 149 Static int cue_getmac(struct cue_softc *, void *); 150 151 #define CUE_SETBIT(sc, reg, x) \ 152 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x)) 153 154 #define CUE_CLRBIT(sc, reg, x) \ 155 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x)) 156 157 Static int 158 cue_csr_read_1(struct cue_softc *sc, int reg) 159 { 160 usb_device_request_t req; 161 usbd_status err; 162 u_int8_t val = 0; 163 164 if (sc->cue_dying) 165 return (0); 166 167 req.bmRequestType = UT_READ_VENDOR_DEVICE; 168 req.bRequest = CUE_CMD_READREG; 169 USETW(req.wValue, 0); 170 USETW(req.wIndex, reg); 171 USETW(req.wLength, 1); 172 173 err = usbd_do_request(sc->cue_udev, &req, &val); 174 175 if (err) { 176 DPRINTF(("%s: cue_csr_read_1: reg=0x%x err=%s\n", 177 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 178 return (0); 179 } 180 181 DPRINTFN(10,("%s: cue_csr_read_1 reg=0x%x val=0x%x\n", 182 device_xname(sc->cue_dev), reg, val)); 183 184 return (val); 185 } 186 187 Static int 188 cue_csr_read_2(struct cue_softc *sc, int reg) 189 { 190 usb_device_request_t req; 191 usbd_status err; 192 uWord val; 193 194 if (sc->cue_dying) 195 return (0); 196 197 req.bmRequestType = UT_READ_VENDOR_DEVICE; 198 req.bRequest = CUE_CMD_READREG; 199 USETW(req.wValue, 0); 200 USETW(req.wIndex, reg); 201 USETW(req.wLength, 2); 202 203 err = usbd_do_request(sc->cue_udev, &req, &val); 204 205 DPRINTFN(10,("%s: cue_csr_read_2 reg=0x%x val=0x%x\n", 206 device_xname(sc->cue_dev), reg, UGETW(val))); 207 208 if (err) { 209 DPRINTF(("%s: cue_csr_read_2: reg=0x%x err=%s\n", 210 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 211 return (0); 212 } 213 214 return (UGETW(val)); 215 } 216 217 Static int 218 cue_csr_write_1(struct cue_softc *sc, int reg, int val) 219 { 220 usb_device_request_t req; 221 usbd_status err; 222 223 if (sc->cue_dying) 224 return (0); 225 226 DPRINTFN(10,("%s: cue_csr_write_1 reg=0x%x val=0x%x\n", 227 device_xname(sc->cue_dev), reg, val)); 228 229 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 230 req.bRequest = CUE_CMD_WRITEREG; 231 USETW(req.wValue, val); 232 USETW(req.wIndex, reg); 233 USETW(req.wLength, 0); 234 235 err = usbd_do_request(sc->cue_udev, &req, NULL); 236 237 if (err) { 238 DPRINTF(("%s: cue_csr_write_1: reg=0x%x err=%s\n", 239 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 240 return (-1); 241 } 242 243 DPRINTFN(20,("%s: cue_csr_write_1, after reg=0x%x val=0x%x\n", 244 device_xname(sc->cue_dev), reg, cue_csr_read_1(sc, reg))); 245 246 return (0); 247 } 248 249 #if 0 250 Static int 251 cue_csr_write_2(struct cue_softc *sc, int reg, int aval) 252 { 253 usb_device_request_t req; 254 usbd_status err; 255 uWord val; 256 int s; 257 258 if (sc->cue_dying) 259 return (0); 260 261 DPRINTFN(10,("%s: cue_csr_write_2 reg=0x%x val=0x%x\n", 262 device_xname(sc->cue_dev), reg, aval)); 263 264 USETW(val, aval); 265 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 266 req.bRequest = CUE_CMD_WRITEREG; 267 USETW(req.wValue, val); 268 USETW(req.wIndex, reg); 269 USETW(req.wLength, 0); 270 271 err = usbd_do_request(sc->cue_udev, &req, NULL); 272 273 if (err) { 274 DPRINTF(("%s: cue_csr_write_2: reg=0x%x err=%s\n", 275 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 276 return (-1); 277 } 278 279 return (0); 280 } 281 #endif 282 283 Static int 284 cue_mem(struct cue_softc *sc, int cmd, int addr, void *buf, int len) 285 { 286 usb_device_request_t req; 287 usbd_status err; 288 289 DPRINTFN(10,("%s: cue_mem cmd=0x%x addr=0x%x len=%d\n", 290 device_xname(sc->cue_dev), cmd, addr, len)); 291 292 if (cmd == CUE_CMD_READSRAM) 293 req.bmRequestType = UT_READ_VENDOR_DEVICE; 294 else 295 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 296 req.bRequest = cmd; 297 USETW(req.wValue, 0); 298 USETW(req.wIndex, addr); 299 USETW(req.wLength, len); 300 301 err = usbd_do_request(sc->cue_udev, &req, buf); 302 303 if (err) { 304 DPRINTF(("%s: cue_csr_mem: addr=0x%x err=%s\n", 305 device_xname(sc->cue_dev), addr, usbd_errstr(err))); 306 return (-1); 307 } 308 309 return (0); 310 } 311 312 Static int 313 cue_getmac(struct cue_softc *sc, void *buf) 314 { 315 usb_device_request_t req; 316 usbd_status err; 317 318 DPRINTFN(10,("%s: cue_getmac\n", device_xname(sc->cue_dev))); 319 320 req.bmRequestType = UT_READ_VENDOR_DEVICE; 321 req.bRequest = CUE_CMD_GET_MACADDR; 322 USETW(req.wValue, 0); 323 USETW(req.wIndex, 0); 324 USETW(req.wLength, ETHER_ADDR_LEN); 325 326 err = usbd_do_request(sc->cue_udev, &req, buf); 327 328 if (err) { 329 printf("%s: read MAC address failed\n", 330 device_xname(sc->cue_dev)); 331 return (-1); 332 } 333 334 return (0); 335 } 336 337 #define CUE_POLY 0xEDB88320 338 #define CUE_BITS 9 339 340 Static u_int32_t 341 cue_crc(const char *addr) 342 { 343 u_int32_t idx, bit, data, crc; 344 345 /* Compute CRC for the address value. */ 346 crc = 0xFFFFFFFF; /* initial value */ 347 348 for (idx = 0; idx < 6; idx++) { 349 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) 350 crc = (crc >> 1) ^ (((crc ^ data) & 1) ? CUE_POLY : 0); 351 } 352 353 return (crc & ((1 << CUE_BITS) - 1)); 354 } 355 356 Static void 357 cue_setmulti(struct cue_softc *sc) 358 { 359 struct ifnet *ifp; 360 struct ether_multi *enm; 361 struct ether_multistep step; 362 u_int32_t h, i; 363 364 ifp = GET_IFP(sc); 365 366 DPRINTFN(2,("%s: cue_setmulti if_flags=0x%x\n", 367 device_xname(sc->cue_dev), ifp->if_flags)); 368 369 if (ifp->if_flags & IFF_PROMISC) { 370 allmulti: 371 ifp->if_flags |= IFF_ALLMULTI; 372 for (i = 0; i < CUE_MCAST_TABLE_LEN; i++) 373 sc->cue_mctab[i] = 0xFF; 374 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 375 &sc->cue_mctab, CUE_MCAST_TABLE_LEN); 376 return; 377 } 378 379 /* first, zot all the existing hash bits */ 380 for (i = 0; i < CUE_MCAST_TABLE_LEN; i++) 381 sc->cue_mctab[i] = 0; 382 383 /* now program new ones */ 384 ETHER_FIRST_MULTI(step, &sc->cue_ec, enm); 385 while (enm != NULL) { 386 if (memcmp(enm->enm_addrlo, 387 enm->enm_addrhi, ETHER_ADDR_LEN) != 0) 388 goto allmulti; 389 390 h = cue_crc(enm->enm_addrlo); 391 sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); 392 ETHER_NEXT_MULTI(step, enm); 393 } 394 395 ifp->if_flags &= ~IFF_ALLMULTI; 396 397 /* 398 * Also include the broadcast address in the filter 399 * so we can receive broadcast frames. 400 */ 401 if (ifp->if_flags & IFF_BROADCAST) { 402 h = cue_crc(etherbroadcastaddr); 403 sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); 404 } 405 406 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 407 &sc->cue_mctab, CUE_MCAST_TABLE_LEN); 408 } 409 410 Static void 411 cue_reset(struct cue_softc *sc) 412 { 413 usb_device_request_t req; 414 usbd_status err; 415 416 DPRINTFN(2,("%s: cue_reset\n", device_xname(sc->cue_dev))); 417 418 if (sc->cue_dying) 419 return; 420 421 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 422 req.bRequest = CUE_CMD_RESET; 423 USETW(req.wValue, 0); 424 USETW(req.wIndex, 0); 425 USETW(req.wLength, 0); 426 427 err = usbd_do_request(sc->cue_udev, &req, NULL); 428 429 if (err) 430 printf("%s: reset failed\n", device_xname(sc->cue_dev)); 431 432 /* Wait a little while for the chip to get its brains in order. */ 433 usbd_delay_ms(sc->cue_udev, 1); 434 } 435 436 /* 437 * Probe for a CATC chip. 438 */ 439 int 440 cue_match(device_t parent, cfdata_t match, void *aux) 441 { 442 struct usb_attach_arg *uaa = aux; 443 444 return (cue_lookup(uaa->vendor, uaa->product) != NULL ? 445 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 446 } 447 448 /* 449 * Attach the interface. Allocate softc structures, do ifmedia 450 * setup and ethernet/BPF attach. 451 */ 452 void 453 cue_attach(device_t parent, device_t self, void *aux) 454 { 455 struct cue_softc *sc = device_private(self); 456 struct usb_attach_arg *uaa = aux; 457 char *devinfop; 458 int s; 459 u_char eaddr[ETHER_ADDR_LEN]; 460 usbd_device_handle dev = uaa->device; 461 usbd_interface_handle iface; 462 usbd_status err; 463 struct ifnet *ifp; 464 usb_interface_descriptor_t *id; 465 usb_endpoint_descriptor_t *ed; 466 int i; 467 468 DPRINTFN(5,(" : cue_attach: sc=%p, dev=%p", sc, dev)); 469 470 sc->cue_dev = self; 471 472 aprint_naive("\n"); 473 aprint_normal("\n"); 474 475 devinfop = usbd_devinfo_alloc(dev, 0); 476 aprint_normal_dev(self, "%s\n", devinfop); 477 usbd_devinfo_free(devinfop); 478 479 err = usbd_set_config_no(dev, CUE_CONFIG_NO, 1); 480 if (err) { 481 aprint_error_dev(self, "failed to set configuration" 482 ", err=%s\n", usbd_errstr(err)); 483 return; 484 } 485 486 sc->cue_udev = dev; 487 sc->cue_product = uaa->product; 488 sc->cue_vendor = uaa->vendor; 489 490 usb_init_task(&sc->cue_tick_task, cue_tick_task, sc, 0); 491 usb_init_task(&sc->cue_stop_task, (void (*)(void *))cue_stop, sc, 0); 492 493 err = usbd_device2interface_handle(dev, CUE_IFACE_IDX, &iface); 494 if (err) { 495 aprint_error_dev(self, "getting interface handle failed\n"); 496 return; 497 } 498 499 sc->cue_iface = iface; 500 id = usbd_get_interface_descriptor(iface); 501 502 /* Find endpoints. */ 503 for (i = 0; i < id->bNumEndpoints; i++) { 504 ed = usbd_interface2endpoint_descriptor(iface, i); 505 if (ed == NULL) { 506 aprint_error_dev(self, "couldn't get ep %d\n", i); 507 return; 508 } 509 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 510 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 511 sc->cue_ed[CUE_ENDPT_RX] = ed->bEndpointAddress; 512 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 513 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 514 sc->cue_ed[CUE_ENDPT_TX] = ed->bEndpointAddress; 515 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 516 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 517 sc->cue_ed[CUE_ENDPT_INTR] = ed->bEndpointAddress; 518 } 519 } 520 521 #if 0 522 /* Reset the adapter. */ 523 cue_reset(sc); 524 #endif 525 /* 526 * Get station address. 527 */ 528 cue_getmac(sc, &eaddr); 529 530 s = splnet(); 531 532 /* 533 * A CATC chip was detected. Inform the world. 534 */ 535 aprint_normal_dev(self, "Ethernet address %s\n", ether_sprintf(eaddr)); 536 537 /* Initialize interface info.*/ 538 ifp = GET_IFP(sc); 539 ifp->if_softc = sc; 540 ifp->if_mtu = ETHERMTU; 541 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 542 ifp->if_ioctl = cue_ioctl; 543 ifp->if_start = cue_start; 544 ifp->if_watchdog = cue_watchdog; 545 strncpy(ifp->if_xname, device_xname(sc->cue_dev), IFNAMSIZ); 546 547 IFQ_SET_READY(&ifp->if_snd); 548 549 /* Attach the interface. */ 550 if_attach(ifp); 551 ether_ifattach(ifp, eaddr); 552 rnd_attach_source(&sc->rnd_source, device_xname(sc->cue_dev), 553 RND_TYPE_NET, RND_FLAG_DEFAULT); 554 555 callout_init(&(sc->cue_stat_ch), 0); 556 557 sc->cue_attached = 1; 558 splx(s); 559 560 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->cue_udev, sc->cue_dev); 561 562 return; 563 } 564 565 int 566 cue_detach(device_t self, int flags) 567 { 568 struct cue_softc *sc = device_private(self); 569 struct ifnet *ifp = GET_IFP(sc); 570 int s; 571 572 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 573 574 callout_stop(&sc->cue_stat_ch); 575 /* 576 * Remove any pending task. It cannot be executing because it run 577 * in the same thread as detach. 578 */ 579 usb_rem_task(sc->cue_udev, &sc->cue_tick_task); 580 usb_rem_task(sc->cue_udev, &sc->cue_stop_task); 581 582 if (!sc->cue_attached) { 583 /* Detached before attached finished, so just bail out. */ 584 return (0); 585 } 586 587 s = splusb(); 588 589 if (ifp->if_flags & IFF_RUNNING) 590 cue_stop(sc); 591 592 rnd_detach_source(&sc->rnd_source); 593 ether_ifdetach(ifp); 594 595 if_detach(ifp); 596 597 #ifdef DIAGNOSTIC 598 if (sc->cue_ep[CUE_ENDPT_TX] != NULL || 599 sc->cue_ep[CUE_ENDPT_RX] != NULL || 600 sc->cue_ep[CUE_ENDPT_INTR] != NULL) 601 aprint_debug_dev(self, "detach has active endpoints\n"); 602 #endif 603 604 sc->cue_attached = 0; 605 splx(s); 606 607 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->cue_udev, sc->cue_dev); 608 609 return (0); 610 } 611 612 int 613 cue_activate(device_t self, enum devact act) 614 { 615 struct cue_softc *sc = device_private(self); 616 617 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 618 619 switch (act) { 620 case DVACT_DEACTIVATE: 621 /* Deactivate the interface. */ 622 if_deactivate(&sc->cue_ec.ec_if); 623 sc->cue_dying = 1; 624 return 0; 625 default: 626 return EOPNOTSUPP; 627 } 628 } 629 630 /* 631 * Initialize an RX descriptor and attach an MBUF cluster. 632 */ 633 Static int 634 cue_newbuf(struct cue_softc *sc, struct cue_chain *c, struct mbuf *m) 635 { 636 struct mbuf *m_new = NULL; 637 638 if (m == NULL) { 639 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 640 if (m_new == NULL) { 641 printf("%s: no memory for rx list " 642 "-- packet dropped!\n", device_xname(sc->cue_dev)); 643 return (ENOBUFS); 644 } 645 646 MCLGET(m_new, M_DONTWAIT); 647 if (!(m_new->m_flags & M_EXT)) { 648 printf("%s: no memory for rx list " 649 "-- packet dropped!\n", device_xname(sc->cue_dev)); 650 m_freem(m_new); 651 return (ENOBUFS); 652 } 653 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 654 } else { 655 m_new = m; 656 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 657 m_new->m_data = m_new->m_ext.ext_buf; 658 } 659 660 m_adj(m_new, ETHER_ALIGN); 661 c->cue_mbuf = m_new; 662 663 return (0); 664 } 665 666 Static int 667 cue_rx_list_init(struct cue_softc *sc) 668 { 669 struct cue_cdata *cd; 670 struct cue_chain *c; 671 int i; 672 673 cd = &sc->cue_cdata; 674 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 675 c = &cd->cue_rx_chain[i]; 676 c->cue_sc = sc; 677 c->cue_idx = i; 678 if (cue_newbuf(sc, c, NULL) == ENOBUFS) 679 return (ENOBUFS); 680 if (c->cue_xfer == NULL) { 681 c->cue_xfer = usbd_alloc_xfer(sc->cue_udev); 682 if (c->cue_xfer == NULL) 683 return (ENOBUFS); 684 c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ); 685 if (c->cue_buf == NULL) { 686 usbd_free_xfer(c->cue_xfer); 687 return (ENOBUFS); 688 } 689 } 690 } 691 692 return (0); 693 } 694 695 Static int 696 cue_tx_list_init(struct cue_softc *sc) 697 { 698 struct cue_cdata *cd; 699 struct cue_chain *c; 700 int i; 701 702 cd = &sc->cue_cdata; 703 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 704 c = &cd->cue_tx_chain[i]; 705 c->cue_sc = sc; 706 c->cue_idx = i; 707 c->cue_mbuf = NULL; 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 /* 724 * A frame has been uploaded: pass the resulting mbuf chain up to 725 * the higher level protocols. 726 */ 727 Static void 728 cue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 729 { 730 struct cue_chain *c = priv; 731 struct cue_softc *sc = c->cue_sc; 732 struct ifnet *ifp = GET_IFP(sc); 733 struct mbuf *m; 734 int total_len = 0; 735 u_int16_t len; 736 int s; 737 738 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->cue_dev), 739 __func__, status)); 740 741 if (sc->cue_dying) 742 return; 743 744 if (!(ifp->if_flags & IFF_RUNNING)) 745 return; 746 747 if (status != USBD_NORMAL_COMPLETION) { 748 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 749 return; 750 sc->cue_rx_errs++; 751 if (usbd_ratecheck(&sc->cue_rx_notice)) { 752 printf("%s: %u usb errors on rx: %s\n", 753 device_xname(sc->cue_dev), sc->cue_rx_errs, 754 usbd_errstr(status)); 755 sc->cue_rx_errs = 0; 756 } 757 if (status == USBD_STALLED) 758 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_RX]); 759 goto done; 760 } 761 762 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 763 764 memcpy(mtod(c->cue_mbuf, char *), c->cue_buf, total_len); 765 766 m = c->cue_mbuf; 767 len = UGETW(mtod(m, u_int8_t *)); 768 769 /* No errors; receive the packet. */ 770 total_len = len; 771 772 if (len < sizeof(struct ether_header)) { 773 ifp->if_ierrors++; 774 goto done; 775 } 776 777 ifp->if_ipackets++; 778 m_adj(m, sizeof(u_int16_t)); 779 m->m_pkthdr.len = m->m_len = total_len; 780 781 m->m_pkthdr.rcvif = ifp; 782 783 s = splnet(); 784 785 /* XXX ugly */ 786 if (cue_newbuf(sc, c, NULL) == ENOBUFS) { 787 ifp->if_ierrors++; 788 goto done1; 789 } 790 791 /* 792 * Handle BPF listeners. Let the BPF user see the packet, but 793 * don't pass it up to the ether_input() layer unless it's 794 * a broadcast packet, multicast packet, matches our ethernet 795 * address or the interface is in promiscuous mode. 796 */ 797 bpf_mtap(ifp, m); 798 799 DPRINTFN(10,("%s: %s: deliver %d\n", device_xname(sc->cue_dev), 800 __func__, m->m_len)); 801 (*(ifp)->if_input)((ifp), (m)); 802 done1: 803 splx(s); 804 805 done: 806 /* Setup new transfer. */ 807 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], 808 c, c->cue_buf, CUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 809 USBD_NO_TIMEOUT, cue_rxeof); 810 usbd_transfer(c->cue_xfer); 811 812 DPRINTFN(10,("%s: %s: start rx\n", device_xname(sc->cue_dev), 813 __func__)); 814 } 815 816 /* 817 * A frame was downloaded to the chip. It's safe for us to clean up 818 * the list buffers. 819 */ 820 Static void 821 cue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, 822 usbd_status status) 823 { 824 struct cue_chain *c = priv; 825 struct cue_softc *sc = c->cue_sc; 826 struct ifnet *ifp = GET_IFP(sc); 827 int s; 828 829 if (sc->cue_dying) 830 return; 831 832 s = splnet(); 833 834 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->cue_dev), 835 __func__, status)); 836 837 ifp->if_timer = 0; 838 ifp->if_flags &= ~IFF_OACTIVE; 839 840 if (status != USBD_NORMAL_COMPLETION) { 841 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 842 splx(s); 843 return; 844 } 845 ifp->if_oerrors++; 846 printf("%s: usb error on tx: %s\n", device_xname(sc->cue_dev), 847 usbd_errstr(status)); 848 if (status == USBD_STALLED) 849 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_TX]); 850 splx(s); 851 return; 852 } 853 854 ifp->if_opackets++; 855 856 m_freem(c->cue_mbuf); 857 c->cue_mbuf = NULL; 858 859 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 860 cue_start(ifp); 861 862 splx(s); 863 } 864 865 Static void 866 cue_tick(void *xsc) 867 { 868 struct cue_softc *sc = xsc; 869 870 if (sc == NULL) 871 return; 872 873 if (sc->cue_dying) 874 return; 875 876 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 877 878 /* Perform statistics update in process context. */ 879 usb_add_task(sc->cue_udev, &sc->cue_tick_task, USB_TASKQ_DRIVER); 880 } 881 882 Static void 883 cue_tick_task(void *xsc) 884 { 885 struct cue_softc *sc = xsc; 886 struct ifnet *ifp; 887 888 if (sc->cue_dying) 889 return; 890 891 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 892 893 ifp = GET_IFP(sc); 894 895 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_SINGLECOLL); 896 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_MULTICOLL); 897 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_EXCESSCOLL); 898 899 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR)) 900 ifp->if_ierrors++; 901 } 902 903 Static int 904 cue_send(struct cue_softc *sc, struct mbuf *m, int idx) 905 { 906 int total_len; 907 struct cue_chain *c; 908 usbd_status err; 909 910 c = &sc->cue_cdata.cue_tx_chain[idx]; 911 912 /* 913 * Copy the mbuf data into a contiguous buffer, leaving two 914 * bytes at the beginning to hold the frame length. 915 */ 916 m_copydata(m, 0, m->m_pkthdr.len, c->cue_buf + 2); 917 c->cue_mbuf = m; 918 919 total_len = m->m_pkthdr.len + 2; 920 921 DPRINTFN(10,("%s: %s: total_len=%d\n", 922 device_xname(sc->cue_dev), __func__, total_len)); 923 924 /* The first two bytes are the frame length */ 925 c->cue_buf[0] = (u_int8_t)m->m_pkthdr.len; 926 c->cue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8); 927 928 /* XXX 10000 */ 929 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_TX], 930 c, c->cue_buf, total_len, USBD_NO_COPY, 10000, cue_txeof); 931 932 /* Transmit */ 933 err = usbd_transfer(c->cue_xfer); 934 if (err != USBD_IN_PROGRESS) { 935 printf("%s: cue_send error=%s\n", device_xname(sc->cue_dev), 936 usbd_errstr(err)); 937 /* Stop the interface from process context. */ 938 usb_add_task(sc->cue_udev, &sc->cue_stop_task, 939 USB_TASKQ_DRIVER); 940 return (EIO); 941 } 942 943 sc->cue_cdata.cue_tx_cnt++; 944 945 return (0); 946 } 947 948 Static void 949 cue_start(struct ifnet *ifp) 950 { 951 struct cue_softc *sc = ifp->if_softc; 952 struct mbuf *m_head = NULL; 953 954 if (sc->cue_dying) 955 return; 956 957 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 958 959 if (ifp->if_flags & IFF_OACTIVE) 960 return; 961 962 IFQ_POLL(&ifp->if_snd, m_head); 963 if (m_head == NULL) 964 return; 965 966 if (cue_send(sc, m_head, 0)) { 967 ifp->if_flags |= IFF_OACTIVE; 968 return; 969 } 970 971 IFQ_DEQUEUE(&ifp->if_snd, m_head); 972 973 /* 974 * If there's a BPF listener, bounce a copy of this frame 975 * to him. 976 */ 977 bpf_mtap(ifp, m_head); 978 979 ifp->if_flags |= IFF_OACTIVE; 980 981 /* 982 * Set a timeout in case the chip goes out to lunch. 983 */ 984 ifp->if_timer = 5; 985 } 986 987 Static void 988 cue_init(void *xsc) 989 { 990 struct cue_softc *sc = xsc; 991 struct ifnet *ifp = GET_IFP(sc); 992 int i, s, ctl; 993 const u_char *eaddr; 994 995 if (sc->cue_dying) 996 return; 997 998 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 999 1000 if (ifp->if_flags & IFF_RUNNING) 1001 return; 1002 1003 s = splnet(); 1004 1005 /* 1006 * Cancel pending I/O and free all RX/TX buffers. 1007 */ 1008 #if 1 1009 cue_reset(sc); 1010 #endif 1011 1012 /* Set advanced operation modes. */ 1013 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1014 CUE_AOP_EMBED_RXLEN | 0x03); /* 1 wait state */ 1015 1016 eaddr = CLLADDR(ifp->if_sadl); 1017 /* Set MAC address */ 1018 for (i = 0; i < ETHER_ADDR_LEN; i++) 1019 cue_csr_write_1(sc, CUE_PAR0 - i, eaddr[i]); 1020 1021 /* Enable RX logic. */ 1022 ctl = CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON; 1023 if (ifp->if_flags & IFF_PROMISC) 1024 ctl |= CUE_ETHCTL_PROMISC; 1025 cue_csr_write_1(sc, CUE_ETHCTL, ctl); 1026 1027 /* Init TX ring. */ 1028 if (cue_tx_list_init(sc) == ENOBUFS) { 1029 printf("%s: tx list init failed\n", device_xname(sc->cue_dev)); 1030 splx(s); 1031 return; 1032 } 1033 1034 /* Init RX ring. */ 1035 if (cue_rx_list_init(sc) == ENOBUFS) { 1036 printf("%s: rx list init failed\n", device_xname(sc->cue_dev)); 1037 splx(s); 1038 return; 1039 } 1040 1041 /* Load the multicast filter. */ 1042 cue_setmulti(sc); 1043 1044 /* 1045 * Set the number of RX and TX buffers that we want 1046 * to reserve inside the ASIC. 1047 */ 1048 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES); 1049 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES); 1050 1051 /* Set advanced operation modes. */ 1052 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1053 CUE_AOP_EMBED_RXLEN | 0x01); /* 1 wait state */ 1054 1055 /* Program the LED operation. */ 1056 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK); 1057 1058 if (sc->cue_ep[CUE_ENDPT_RX] == NULL) { 1059 if (cue_open_pipes(sc)) { 1060 splx(s); 1061 return; 1062 } 1063 } 1064 1065 ifp->if_flags |= IFF_RUNNING; 1066 ifp->if_flags &= ~IFF_OACTIVE; 1067 1068 splx(s); 1069 1070 callout_reset(&(sc->cue_stat_ch), (hz), (cue_tick), (sc)); 1071 } 1072 1073 Static int 1074 cue_open_pipes(struct cue_softc *sc) 1075 { 1076 struct cue_chain *c; 1077 usbd_status err; 1078 int i; 1079 1080 /* Open RX and TX pipes. */ 1081 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_RX], 1082 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_RX]); 1083 if (err) { 1084 printf("%s: open rx pipe failed: %s\n", 1085 device_xname(sc->cue_dev), usbd_errstr(err)); 1086 return (EIO); 1087 } 1088 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_TX], 1089 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_TX]); 1090 if (err) { 1091 printf("%s: open tx pipe failed: %s\n", 1092 device_xname(sc->cue_dev), usbd_errstr(err)); 1093 return (EIO); 1094 } 1095 1096 /* Start up the receive pipe. */ 1097 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1098 c = &sc->cue_cdata.cue_rx_chain[i]; 1099 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], 1100 c, c->cue_buf, CUE_BUFSZ, 1101 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 1102 cue_rxeof); 1103 usbd_transfer(c->cue_xfer); 1104 } 1105 1106 return (0); 1107 } 1108 1109 Static int 1110 cue_ioctl(struct ifnet *ifp, u_long command, void *data) 1111 { 1112 struct cue_softc *sc = ifp->if_softc; 1113 struct ifaddr *ifa = (struct ifaddr *)data; 1114 struct ifreq *ifr = (struct ifreq *)data; 1115 int s, error = 0; 1116 1117 if (sc->cue_dying) 1118 return (EIO); 1119 1120 s = splnet(); 1121 1122 switch(command) { 1123 case SIOCINITIFADDR: 1124 ifp->if_flags |= IFF_UP; 1125 cue_init(sc); 1126 1127 switch (ifa->ifa_addr->sa_family) { 1128 #ifdef INET 1129 case AF_INET: 1130 arp_ifinit(ifp, ifa); 1131 break; 1132 #endif /* INET */ 1133 } 1134 break; 1135 1136 case SIOCSIFMTU: 1137 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 1138 error = EINVAL; 1139 else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) 1140 error = 0; 1141 break; 1142 1143 case SIOCSIFFLAGS: 1144 if ((error = ifioctl_common(ifp, command, data)) != 0) 1145 break; 1146 if (ifp->if_flags & IFF_UP) { 1147 if (ifp->if_flags & IFF_RUNNING && 1148 ifp->if_flags & IFF_PROMISC && 1149 !(sc->cue_if_flags & IFF_PROMISC)) { 1150 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1151 cue_setmulti(sc); 1152 } else if (ifp->if_flags & IFF_RUNNING && 1153 !(ifp->if_flags & IFF_PROMISC) && 1154 sc->cue_if_flags & IFF_PROMISC) { 1155 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1156 cue_setmulti(sc); 1157 } else if (!(ifp->if_flags & IFF_RUNNING)) 1158 cue_init(sc); 1159 } else { 1160 if (ifp->if_flags & IFF_RUNNING) 1161 cue_stop(sc); 1162 } 1163 sc->cue_if_flags = ifp->if_flags; 1164 error = 0; 1165 break; 1166 case SIOCADDMULTI: 1167 case SIOCDELMULTI: 1168 cue_setmulti(sc); 1169 error = 0; 1170 break; 1171 default: 1172 error = ether_ioctl(ifp, command, data); 1173 break; 1174 } 1175 1176 splx(s); 1177 1178 return (error); 1179 } 1180 1181 Static void 1182 cue_watchdog(struct ifnet *ifp) 1183 { 1184 struct cue_softc *sc = ifp->if_softc; 1185 struct cue_chain *c; 1186 usbd_status stat; 1187 int s; 1188 1189 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 1190 1191 if (sc->cue_dying) 1192 return; 1193 1194 ifp->if_oerrors++; 1195 printf("%s: watchdog timeout\n", device_xname(sc->cue_dev)); 1196 1197 s = splusb(); 1198 c = &sc->cue_cdata.cue_tx_chain[0]; 1199 usbd_get_xfer_status(c->cue_xfer, NULL, NULL, NULL, &stat); 1200 cue_txeof(c->cue_xfer, c, stat); 1201 1202 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1203 cue_start(ifp); 1204 splx(s); 1205 } 1206 1207 /* 1208 * Stop the adapter and free any mbufs allocated to the 1209 * RX and TX lists. 1210 */ 1211 Static void 1212 cue_stop(struct cue_softc *sc) 1213 { 1214 usbd_status err; 1215 struct ifnet *ifp; 1216 int i; 1217 1218 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 1219 1220 ifp = GET_IFP(sc); 1221 ifp->if_timer = 0; 1222 1223 cue_csr_write_1(sc, CUE_ETHCTL, 0); 1224 cue_reset(sc); 1225 callout_stop(&sc->cue_stat_ch); 1226 1227 /* Stop transfers. */ 1228 if (sc->cue_ep[CUE_ENDPT_RX] != NULL) { 1229 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1230 if (err) { 1231 printf("%s: abort rx pipe failed: %s\n", 1232 device_xname(sc->cue_dev), usbd_errstr(err)); 1233 } 1234 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1235 if (err) { 1236 printf("%s: close rx pipe failed: %s\n", 1237 device_xname(sc->cue_dev), usbd_errstr(err)); 1238 } 1239 sc->cue_ep[CUE_ENDPT_RX] = NULL; 1240 } 1241 1242 if (sc->cue_ep[CUE_ENDPT_TX] != NULL) { 1243 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1244 if (err) { 1245 printf("%s: abort tx pipe failed: %s\n", 1246 device_xname(sc->cue_dev), usbd_errstr(err)); 1247 } 1248 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1249 if (err) { 1250 printf("%s: close tx pipe failed: %s\n", 1251 device_xname(sc->cue_dev), usbd_errstr(err)); 1252 } 1253 sc->cue_ep[CUE_ENDPT_TX] = NULL; 1254 } 1255 1256 if (sc->cue_ep[CUE_ENDPT_INTR] != NULL) { 1257 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1258 if (err) { 1259 printf("%s: abort intr pipe failed: %s\n", 1260 device_xname(sc->cue_dev), usbd_errstr(err)); 1261 } 1262 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1263 if (err) { 1264 printf("%s: close intr pipe failed: %s\n", 1265 device_xname(sc->cue_dev), usbd_errstr(err)); 1266 } 1267 sc->cue_ep[CUE_ENDPT_INTR] = NULL; 1268 } 1269 1270 /* Free RX resources. */ 1271 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1272 if (sc->cue_cdata.cue_rx_chain[i].cue_mbuf != NULL) { 1273 m_freem(sc->cue_cdata.cue_rx_chain[i].cue_mbuf); 1274 sc->cue_cdata.cue_rx_chain[i].cue_mbuf = NULL; 1275 } 1276 if (sc->cue_cdata.cue_rx_chain[i].cue_xfer != NULL) { 1277 usbd_free_xfer(sc->cue_cdata.cue_rx_chain[i].cue_xfer); 1278 sc->cue_cdata.cue_rx_chain[i].cue_xfer = NULL; 1279 } 1280 } 1281 1282 /* Free TX resources. */ 1283 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 1284 if (sc->cue_cdata.cue_tx_chain[i].cue_mbuf != NULL) { 1285 m_freem(sc->cue_cdata.cue_tx_chain[i].cue_mbuf); 1286 sc->cue_cdata.cue_tx_chain[i].cue_mbuf = NULL; 1287 } 1288 if (sc->cue_cdata.cue_tx_chain[i].cue_xfer != NULL) { 1289 usbd_free_xfer(sc->cue_cdata.cue_tx_chain[i].cue_xfer); 1290 sc->cue_cdata.cue_tx_chain[i].cue_xfer = NULL; 1291 } 1292 } 1293 1294 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1295 } 1296