if_cue.c revision 1.63
1 /* $NetBSD: if_cue.c,v 1.63 2012/03/11 01:06:06 mrg 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 1.63 2012/03/11 01:06:06 mrg Exp $"); 60 61 #include "opt_inet.h" 62 63 #include <sys/param.h> 64 #include <sys/systm.h> 65 #include <sys/callout.h> 66 #include <sys/sockio.h> 67 #include <sys/mbuf.h> 68 #include <sys/malloc.h> 69 #include <sys/kernel.h> 70 #include <sys/socket.h> 71 #include <sys/bus.h> 72 #include <sys/device.h> 73 #include <sys/rnd.h> 74 75 #include <net/if.h> 76 #include <net/if_arp.h> 77 #include <net/if_dl.h> 78 #include <net/bpf.h> 79 #include <net/if_ether.h> 80 81 #ifdef INET 82 #include <netinet/in.h> 83 #include <netinet/if_inarp.h> 84 #endif 85 86 #include <dev/usb/usb.h> 87 #include <dev/usb/usbdi.h> 88 #include <dev/usb/usbdi_util.h> 89 #include <dev/usb/usbdivar.h> 90 #include <dev/usb/usbdevs.h> 91 92 #include <dev/usb/if_cuereg.h> 93 94 #ifdef CUE_DEBUG 95 #define DPRINTF(x) if (cuedebug) printf x 96 #define DPRINTFN(n,x) if (cuedebug >= (n)) printf x 97 int cuedebug = 0; 98 #else 99 #define DPRINTF(x) 100 #define DPRINTFN(n,x) 101 #endif 102 103 /* 104 * Various supported device vendors/products. 105 */ 106 Static struct usb_devno cue_devs[] = { 107 { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE }, 108 { USB_VENDOR_CATC, USB_PRODUCT_CATC_NETMATE2 }, 109 { USB_VENDOR_SMARTBRIDGES, USB_PRODUCT_SMARTBRIDGES_SMARTLINK }, 110 /* Belkin F5U111 adapter covered by NETMATE entry */ 111 }; 112 #define cue_lookup(v, p) (usb_lookup(cue_devs, v, p)) 113 114 int cue_match(device_t, cfdata_t, void *); 115 void cue_attach(device_t, device_t, void *); 116 int cue_detach(device_t, int); 117 int cue_activate(device_t, enum devact); 118 extern struct cfdriver cue_cd; 119 CFATTACH_DECL_NEW(cue, sizeof(struct cue_softc), cue_match, cue_attach, 120 cue_detach, cue_activate); 121 122 Static int cue_open_pipes(struct cue_softc *); 123 Static int cue_tx_list_init(struct cue_softc *); 124 Static int cue_rx_list_init(struct cue_softc *); 125 Static int cue_newbuf(struct cue_softc *, struct cue_chain *, struct mbuf *); 126 Static int cue_send(struct cue_softc *, struct mbuf *, int); 127 Static void cue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 128 Static void cue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 129 Static void cue_tick(void *); 130 Static void cue_tick_task(void *); 131 Static void cue_start(struct ifnet *); 132 Static int cue_ioctl(struct ifnet *, u_long, void *); 133 Static void cue_init(void *); 134 Static void cue_stop(struct cue_softc *); 135 Static void cue_watchdog(struct ifnet *); 136 137 Static void cue_setmulti(struct cue_softc *); 138 Static u_int32_t cue_crc(const char *); 139 Static void cue_reset(struct cue_softc *); 140 141 Static int cue_csr_read_1(struct cue_softc *, int); 142 Static int cue_csr_write_1(struct cue_softc *, int, int); 143 Static int cue_csr_read_2(struct cue_softc *, int); 144 #if 0 145 Static int cue_csr_write_2(struct cue_softc *, int, int); 146 #endif 147 Static int cue_mem(struct cue_softc *, int, int, void *, int); 148 Static int cue_getmac(struct cue_softc *, void *); 149 150 #define CUE_SETBIT(sc, reg, x) \ 151 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) | (x)) 152 153 #define CUE_CLRBIT(sc, reg, x) \ 154 cue_csr_write_1(sc, reg, cue_csr_read_1(sc, reg) & ~(x)) 155 156 Static int 157 cue_csr_read_1(struct cue_softc *sc, int reg) 158 { 159 usb_device_request_t req; 160 usbd_status err; 161 u_int8_t val = 0; 162 163 if (sc->cue_dying) 164 return (0); 165 166 req.bmRequestType = UT_READ_VENDOR_DEVICE; 167 req.bRequest = CUE_CMD_READREG; 168 USETW(req.wValue, 0); 169 USETW(req.wIndex, reg); 170 USETW(req.wLength, 1); 171 172 err = usbd_do_request(sc->cue_udev, &req, &val); 173 174 if (err) { 175 DPRINTF(("%s: cue_csr_read_1: reg=0x%x err=%s\n", 176 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 177 return (0); 178 } 179 180 DPRINTFN(10,("%s: cue_csr_read_1 reg=0x%x val=0x%x\n", 181 device_xname(sc->cue_dev), reg, val)); 182 183 return (val); 184 } 185 186 Static int 187 cue_csr_read_2(struct cue_softc *sc, int reg) 188 { 189 usb_device_request_t req; 190 usbd_status err; 191 uWord val; 192 193 if (sc->cue_dying) 194 return (0); 195 196 req.bmRequestType = UT_READ_VENDOR_DEVICE; 197 req.bRequest = CUE_CMD_READREG; 198 USETW(req.wValue, 0); 199 USETW(req.wIndex, reg); 200 USETW(req.wLength, 2); 201 202 err = usbd_do_request(sc->cue_udev, &req, &val); 203 204 DPRINTFN(10,("%s: cue_csr_read_2 reg=0x%x val=0x%x\n", 205 device_xname(sc->cue_dev), reg, UGETW(val))); 206 207 if (err) { 208 DPRINTF(("%s: cue_csr_read_2: reg=0x%x err=%s\n", 209 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 210 return (0); 211 } 212 213 return (UGETW(val)); 214 } 215 216 Static int 217 cue_csr_write_1(struct cue_softc *sc, int reg, int val) 218 { 219 usb_device_request_t req; 220 usbd_status err; 221 222 if (sc->cue_dying) 223 return (0); 224 225 DPRINTFN(10,("%s: cue_csr_write_1 reg=0x%x val=0x%x\n", 226 device_xname(sc->cue_dev), reg, val)); 227 228 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 229 req.bRequest = CUE_CMD_WRITEREG; 230 USETW(req.wValue, val); 231 USETW(req.wIndex, reg); 232 USETW(req.wLength, 0); 233 234 err = usbd_do_request(sc->cue_udev, &req, NULL); 235 236 if (err) { 237 DPRINTF(("%s: cue_csr_write_1: reg=0x%x err=%s\n", 238 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 239 return (-1); 240 } 241 242 DPRINTFN(20,("%s: cue_csr_write_1, after reg=0x%x val=0x%x\n", 243 device_xname(sc->cue_dev), reg, cue_csr_read_1(sc, reg))); 244 245 return (0); 246 } 247 248 #if 0 249 Static int 250 cue_csr_write_2(struct cue_softc *sc, int reg, int aval) 251 { 252 usb_device_request_t req; 253 usbd_status err; 254 uWord val; 255 int s; 256 257 if (sc->cue_dying) 258 return (0); 259 260 DPRINTFN(10,("%s: cue_csr_write_2 reg=0x%x val=0x%x\n", 261 device_xname(sc->cue_dev), reg, aval)); 262 263 USETW(val, aval); 264 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 265 req.bRequest = CUE_CMD_WRITEREG; 266 USETW(req.wValue, val); 267 USETW(req.wIndex, reg); 268 USETW(req.wLength, 0); 269 270 err = usbd_do_request(sc->cue_udev, &req, NULL); 271 272 if (err) { 273 DPRINTF(("%s: cue_csr_write_2: reg=0x%x err=%s\n", 274 device_xname(sc->cue_dev), reg, usbd_errstr(err))); 275 return (-1); 276 } 277 278 return (0); 279 } 280 #endif 281 282 Static int 283 cue_mem(struct cue_softc *sc, int cmd, int addr, void *buf, int len) 284 { 285 usb_device_request_t req; 286 usbd_status err; 287 288 DPRINTFN(10,("%s: cue_mem cmd=0x%x addr=0x%x len=%d\n", 289 device_xname(sc->cue_dev), cmd, addr, len)); 290 291 if (cmd == CUE_CMD_READSRAM) 292 req.bmRequestType = UT_READ_VENDOR_DEVICE; 293 else 294 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 295 req.bRequest = cmd; 296 USETW(req.wValue, 0); 297 USETW(req.wIndex, addr); 298 USETW(req.wLength, len); 299 300 err = usbd_do_request(sc->cue_udev, &req, buf); 301 302 if (err) { 303 DPRINTF(("%s: cue_csr_mem: addr=0x%x err=%s\n", 304 device_xname(sc->cue_dev), addr, usbd_errstr(err))); 305 return (-1); 306 } 307 308 return (0); 309 } 310 311 Static int 312 cue_getmac(struct cue_softc *sc, void *buf) 313 { 314 usb_device_request_t req; 315 usbd_status err; 316 317 DPRINTFN(10,("%s: cue_getmac\n", device_xname(sc->cue_dev))); 318 319 req.bmRequestType = UT_READ_VENDOR_DEVICE; 320 req.bRequest = CUE_CMD_GET_MACADDR; 321 USETW(req.wValue, 0); 322 USETW(req.wIndex, 0); 323 USETW(req.wLength, ETHER_ADDR_LEN); 324 325 err = usbd_do_request(sc->cue_udev, &req, buf); 326 327 if (err) { 328 printf("%s: read MAC address failed\n", 329 device_xname(sc->cue_dev)); 330 return (-1); 331 } 332 333 return (0); 334 } 335 336 #define CUE_POLY 0xEDB88320 337 #define CUE_BITS 9 338 339 Static u_int32_t 340 cue_crc(const char *addr) 341 { 342 u_int32_t idx, bit, data, crc; 343 344 /* Compute CRC for the address value. */ 345 crc = 0xFFFFFFFF; /* initial value */ 346 347 for (idx = 0; idx < 6; idx++) { 348 for (data = *addr++, bit = 0; bit < 8; bit++, data >>= 1) 349 crc = (crc >> 1) ^ (((crc ^ data) & 1) ? CUE_POLY : 0); 350 } 351 352 return (crc & ((1 << CUE_BITS) - 1)); 353 } 354 355 Static void 356 cue_setmulti(struct cue_softc *sc) 357 { 358 struct ifnet *ifp; 359 struct ether_multi *enm; 360 struct ether_multistep step; 361 u_int32_t h, i; 362 363 ifp = GET_IFP(sc); 364 365 DPRINTFN(2,("%s: cue_setmulti if_flags=0x%x\n", 366 device_xname(sc->cue_dev), ifp->if_flags)); 367 368 if (ifp->if_flags & IFF_PROMISC) { 369 allmulti: 370 ifp->if_flags |= IFF_ALLMULTI; 371 for (i = 0; i < CUE_MCAST_TABLE_LEN; i++) 372 sc->cue_mctab[i] = 0xFF; 373 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 374 &sc->cue_mctab, CUE_MCAST_TABLE_LEN); 375 return; 376 } 377 378 /* first, zot all the existing hash bits */ 379 for (i = 0; i < CUE_MCAST_TABLE_LEN; i++) 380 sc->cue_mctab[i] = 0; 381 382 /* now program new ones */ 383 ETHER_FIRST_MULTI(step, &sc->cue_ec, enm); 384 while (enm != NULL) { 385 if (memcmp(enm->enm_addrlo, 386 enm->enm_addrhi, ETHER_ADDR_LEN) != 0) 387 goto allmulti; 388 389 h = cue_crc(enm->enm_addrlo); 390 sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); 391 ETHER_NEXT_MULTI(step, enm); 392 } 393 394 ifp->if_flags &= ~IFF_ALLMULTI; 395 396 /* 397 * Also include the broadcast address in the filter 398 * so we can receive broadcast frames. 399 */ 400 if (ifp->if_flags & IFF_BROADCAST) { 401 h = cue_crc(etherbroadcastaddr); 402 sc->cue_mctab[h >> 3] |= 1 << (h & 0x7); 403 } 404 405 cue_mem(sc, CUE_CMD_WRITESRAM, CUE_MCAST_TABLE_ADDR, 406 &sc->cue_mctab, CUE_MCAST_TABLE_LEN); 407 } 408 409 Static void 410 cue_reset(struct cue_softc *sc) 411 { 412 usb_device_request_t req; 413 usbd_status err; 414 415 DPRINTFN(2,("%s: cue_reset\n", device_xname(sc->cue_dev))); 416 417 if (sc->cue_dying) 418 return; 419 420 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 421 req.bRequest = CUE_CMD_RESET; 422 USETW(req.wValue, 0); 423 USETW(req.wIndex, 0); 424 USETW(req.wLength, 0); 425 426 err = usbd_do_request(sc->cue_udev, &req, NULL); 427 428 if (err) 429 printf("%s: reset failed\n", device_xname(sc->cue_dev)); 430 431 /* Wait a little while for the chip to get its brains in order. */ 432 usbd_delay_ms(sc->cue_udev, 1); 433 } 434 435 /* 436 * Probe for a CATC chip. 437 */ 438 int 439 cue_match(device_t parent, cfdata_t match, void *aux) 440 { 441 struct usb_attach_arg *uaa = aux; 442 443 return (cue_lookup(uaa->vendor, uaa->product) != NULL ? 444 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 445 } 446 447 /* 448 * Attach the interface. Allocate softc structures, do ifmedia 449 * setup and ethernet/BPF attach. 450 */ 451 void 452 cue_attach(device_t parent, device_t self, void *aux) 453 { 454 struct cue_softc *sc = device_private(self); 455 struct usb_attach_arg *uaa = aux; 456 char *devinfop; 457 int s; 458 u_char eaddr[ETHER_ADDR_LEN]; 459 usbd_device_handle dev = uaa->device; 460 usbd_interface_handle iface; 461 usbd_status err; 462 struct ifnet *ifp; 463 usb_interface_descriptor_t *id; 464 usb_endpoint_descriptor_t *ed; 465 int i; 466 467 DPRINTFN(5,(" : cue_attach: sc=%p, dev=%p", sc, dev)); 468 469 sc->cue_dev = self; 470 471 aprint_naive("\n"); 472 aprint_normal("\n"); 473 474 devinfop = usbd_devinfo_alloc(dev, 0); 475 aprint_normal_dev(self, "%s\n", devinfop); 476 usbd_devinfo_free(devinfop); 477 478 err = usbd_set_config_no(dev, CUE_CONFIG_NO, 1); 479 if (err) { 480 aprint_error_dev(self, "setting config no failed\n"); 481 return; 482 } 483 484 sc->cue_udev = dev; 485 sc->cue_product = uaa->product; 486 sc->cue_vendor = uaa->vendor; 487 488 usb_init_task(&sc->cue_tick_task, cue_tick_task, sc); 489 usb_init_task(&sc->cue_stop_task, (void (*)(void *))cue_stop, sc); 490 491 err = usbd_device2interface_handle(dev, CUE_IFACE_IDX, &iface); 492 if (err) { 493 aprint_error_dev(self, "getting interface handle failed\n"); 494 return; 495 } 496 497 sc->cue_iface = iface; 498 id = usbd_get_interface_descriptor(iface); 499 500 /* Find endpoints. */ 501 for (i = 0; i < id->bNumEndpoints; i++) { 502 ed = usbd_interface2endpoint_descriptor(iface, i); 503 if (ed == NULL) { 504 aprint_error_dev(self, "couldn't get ep %d\n", i); 505 return; 506 } 507 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 508 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 509 sc->cue_ed[CUE_ENDPT_RX] = ed->bEndpointAddress; 510 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 511 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 512 sc->cue_ed[CUE_ENDPT_TX] = ed->bEndpointAddress; 513 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 514 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 515 sc->cue_ed[CUE_ENDPT_INTR] = ed->bEndpointAddress; 516 } 517 } 518 519 #if 0 520 /* Reset the adapter. */ 521 cue_reset(sc); 522 #endif 523 /* 524 * Get station address. 525 */ 526 cue_getmac(sc, &eaddr); 527 528 s = splnet(); 529 530 /* 531 * A CATC chip was detected. Inform the world. 532 */ 533 aprint_normal_dev(self, "Ethernet address %s\n", ether_sprintf(eaddr)); 534 535 /* Initialize interface info.*/ 536 ifp = GET_IFP(sc); 537 ifp->if_softc = sc; 538 ifp->if_mtu = ETHERMTU; 539 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 540 ifp->if_ioctl = cue_ioctl; 541 ifp->if_start = cue_start; 542 ifp->if_watchdog = cue_watchdog; 543 strncpy(ifp->if_xname, device_xname(sc->cue_dev), IFNAMSIZ); 544 545 IFQ_SET_READY(&ifp->if_snd); 546 547 /* Attach the interface. */ 548 if_attach(ifp); 549 ether_ifattach(ifp, eaddr); 550 rnd_attach_source(&sc->rnd_source, device_xname(sc->cue_dev), 551 RND_TYPE_NET, 0); 552 553 callout_init(&(sc->cue_stat_ch), 0); 554 555 sc->cue_attached = 1; 556 splx(s); 557 558 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->cue_udev, sc->cue_dev); 559 560 return; 561 } 562 563 int 564 cue_detach(device_t self, int flags) 565 { 566 struct cue_softc *sc = device_private(self); 567 struct ifnet *ifp = GET_IFP(sc); 568 int s; 569 570 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 571 572 callout_stop(&sc->cue_stat_ch); 573 /* 574 * Remove any pending task. It cannot be executing because it run 575 * in the same thread as detach. 576 */ 577 usb_rem_task(sc->cue_udev, &sc->cue_tick_task); 578 usb_rem_task(sc->cue_udev, &sc->cue_stop_task); 579 580 if (!sc->cue_attached) { 581 /* Detached before attached finished, so just bail out. */ 582 return (0); 583 } 584 585 s = splusb(); 586 587 if (ifp->if_flags & IFF_RUNNING) 588 cue_stop(sc); 589 590 rnd_detach_source(&sc->rnd_source); 591 ether_ifdetach(ifp); 592 593 if_detach(ifp); 594 595 #ifdef DIAGNOSTIC 596 if (sc->cue_ep[CUE_ENDPT_TX] != NULL || 597 sc->cue_ep[CUE_ENDPT_RX] != NULL || 598 sc->cue_ep[CUE_ENDPT_INTR] != NULL) 599 aprint_debug_dev(self, "detach has active endpoints\n"); 600 #endif 601 602 sc->cue_attached = 0; 603 splx(s); 604 605 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->cue_udev, sc->cue_dev); 606 607 return (0); 608 } 609 610 int 611 cue_activate(device_t self, enum devact act) 612 { 613 struct cue_softc *sc = device_private(self); 614 615 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 616 617 switch (act) { 618 case DVACT_DEACTIVATE: 619 /* Deactivate the interface. */ 620 if_deactivate(&sc->cue_ec.ec_if); 621 sc->cue_dying = 1; 622 return 0; 623 default: 624 return EOPNOTSUPP; 625 } 626 } 627 628 /* 629 * Initialize an RX descriptor and attach an MBUF cluster. 630 */ 631 Static int 632 cue_newbuf(struct cue_softc *sc, struct cue_chain *c, struct mbuf *m) 633 { 634 struct mbuf *m_new = NULL; 635 636 if (m == NULL) { 637 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 638 if (m_new == NULL) { 639 printf("%s: no memory for rx list " 640 "-- packet dropped!\n", device_xname(sc->cue_dev)); 641 return (ENOBUFS); 642 } 643 644 MCLGET(m_new, M_DONTWAIT); 645 if (!(m_new->m_flags & M_EXT)) { 646 printf("%s: no memory for rx list " 647 "-- packet dropped!\n", device_xname(sc->cue_dev)); 648 m_freem(m_new); 649 return (ENOBUFS); 650 } 651 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 652 } else { 653 m_new = m; 654 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 655 m_new->m_data = m_new->m_ext.ext_buf; 656 } 657 658 m_adj(m_new, ETHER_ALIGN); 659 c->cue_mbuf = m_new; 660 661 return (0); 662 } 663 664 Static int 665 cue_rx_list_init(struct cue_softc *sc) 666 { 667 struct cue_cdata *cd; 668 struct cue_chain *c; 669 int i; 670 671 cd = &sc->cue_cdata; 672 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 673 c = &cd->cue_rx_chain[i]; 674 c->cue_sc = sc; 675 c->cue_idx = i; 676 if (cue_newbuf(sc, c, NULL) == ENOBUFS) 677 return (ENOBUFS); 678 if (c->cue_xfer == NULL) { 679 c->cue_xfer = usbd_alloc_xfer(sc->cue_udev); 680 if (c->cue_xfer == NULL) 681 return (ENOBUFS); 682 c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ); 683 if (c->cue_buf == NULL) { 684 usbd_free_xfer(c->cue_xfer); 685 return (ENOBUFS); 686 } 687 } 688 } 689 690 return (0); 691 } 692 693 Static int 694 cue_tx_list_init(struct cue_softc *sc) 695 { 696 struct cue_cdata *cd; 697 struct cue_chain *c; 698 int i; 699 700 cd = &sc->cue_cdata; 701 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 702 c = &cd->cue_tx_chain[i]; 703 c->cue_sc = sc; 704 c->cue_idx = i; 705 c->cue_mbuf = NULL; 706 if (c->cue_xfer == NULL) { 707 c->cue_xfer = usbd_alloc_xfer(sc->cue_udev); 708 if (c->cue_xfer == NULL) 709 return (ENOBUFS); 710 c->cue_buf = usbd_alloc_buffer(c->cue_xfer, CUE_BUFSZ); 711 if (c->cue_buf == NULL) { 712 usbd_free_xfer(c->cue_xfer); 713 return (ENOBUFS); 714 } 715 } 716 } 717 718 return (0); 719 } 720 721 /* 722 * A frame has been uploaded: pass the resulting mbuf chain up to 723 * the higher level protocols. 724 */ 725 Static void 726 cue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 727 { 728 struct cue_chain *c = priv; 729 struct cue_softc *sc = c->cue_sc; 730 struct ifnet *ifp = GET_IFP(sc); 731 struct mbuf *m; 732 int total_len = 0; 733 u_int16_t len; 734 int s; 735 736 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->cue_dev), 737 __func__, status)); 738 739 if (sc->cue_dying) 740 return; 741 742 if (!(ifp->if_flags & IFF_RUNNING)) 743 return; 744 745 if (status != USBD_NORMAL_COMPLETION) { 746 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 747 return; 748 sc->cue_rx_errs++; 749 if (usbd_ratecheck(&sc->cue_rx_notice)) { 750 printf("%s: %u usb errors on rx: %s\n", 751 device_xname(sc->cue_dev), sc->cue_rx_errs, 752 usbd_errstr(status)); 753 sc->cue_rx_errs = 0; 754 } 755 if (status == USBD_STALLED) 756 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_RX]); 757 goto done; 758 } 759 760 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 761 762 memcpy(mtod(c->cue_mbuf, char *), c->cue_buf, total_len); 763 764 m = c->cue_mbuf; 765 len = UGETW(mtod(m, u_int8_t *)); 766 767 /* No errors; receive the packet. */ 768 total_len = len; 769 770 if (len < sizeof(struct ether_header)) { 771 ifp->if_ierrors++; 772 goto done; 773 } 774 775 ifp->if_ipackets++; 776 m_adj(m, sizeof(u_int16_t)); 777 m->m_pkthdr.len = m->m_len = total_len; 778 779 m->m_pkthdr.rcvif = ifp; 780 781 s = splnet(); 782 783 /* XXX ugly */ 784 if (cue_newbuf(sc, c, NULL) == ENOBUFS) { 785 ifp->if_ierrors++; 786 goto done1; 787 } 788 789 /* 790 * Handle BPF listeners. Let the BPF user see the packet, but 791 * don't pass it up to the ether_input() layer unless it's 792 * a broadcast packet, multicast packet, matches our ethernet 793 * address or the interface is in promiscuous mode. 794 */ 795 bpf_mtap(ifp, m); 796 797 DPRINTFN(10,("%s: %s: deliver %d\n", device_xname(sc->cue_dev), 798 __func__, m->m_len)); 799 (*(ifp)->if_input)((ifp), (m)); 800 done1: 801 splx(s); 802 803 done: 804 /* Setup new transfer. */ 805 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], 806 c, c->cue_buf, CUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 807 USBD_NO_TIMEOUT, cue_rxeof); 808 usbd_transfer(c->cue_xfer); 809 810 DPRINTFN(10,("%s: %s: start rx\n", device_xname(sc->cue_dev), 811 __func__)); 812 } 813 814 /* 815 * A frame was downloaded to the chip. It's safe for us to clean up 816 * the list buffers. 817 */ 818 Static void 819 cue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, 820 usbd_status status) 821 { 822 struct cue_chain *c = priv; 823 struct cue_softc *sc = c->cue_sc; 824 struct ifnet *ifp = GET_IFP(sc); 825 int s; 826 827 if (sc->cue_dying) 828 return; 829 830 s = splnet(); 831 832 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->cue_dev), 833 __func__, status)); 834 835 ifp->if_timer = 0; 836 ifp->if_flags &= ~IFF_OACTIVE; 837 838 if (status != USBD_NORMAL_COMPLETION) { 839 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 840 splx(s); 841 return; 842 } 843 ifp->if_oerrors++; 844 printf("%s: usb error on tx: %s\n", device_xname(sc->cue_dev), 845 usbd_errstr(status)); 846 if (status == USBD_STALLED) 847 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_TX]); 848 splx(s); 849 return; 850 } 851 852 ifp->if_opackets++; 853 854 m_freem(c->cue_mbuf); 855 c->cue_mbuf = NULL; 856 857 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 858 cue_start(ifp); 859 860 splx(s); 861 } 862 863 Static void 864 cue_tick(void *xsc) 865 { 866 struct cue_softc *sc = xsc; 867 868 if (sc == NULL) 869 return; 870 871 if (sc->cue_dying) 872 return; 873 874 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 875 876 /* Perform statistics update in process context. */ 877 usb_add_task(sc->cue_udev, &sc->cue_tick_task, USB_TASKQ_DRIVER); 878 } 879 880 Static void 881 cue_tick_task(void *xsc) 882 { 883 struct cue_softc *sc = xsc; 884 struct ifnet *ifp; 885 886 if (sc->cue_dying) 887 return; 888 889 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 890 891 ifp = GET_IFP(sc); 892 893 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_SINGLECOLL); 894 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_MULTICOLL); 895 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_EXCESSCOLL); 896 897 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR)) 898 ifp->if_ierrors++; 899 } 900 901 Static int 902 cue_send(struct cue_softc *sc, struct mbuf *m, int idx) 903 { 904 int total_len; 905 struct cue_chain *c; 906 usbd_status err; 907 908 c = &sc->cue_cdata.cue_tx_chain[idx]; 909 910 /* 911 * Copy the mbuf data into a contiguous buffer, leaving two 912 * bytes at the beginning to hold the frame length. 913 */ 914 m_copydata(m, 0, m->m_pkthdr.len, c->cue_buf + 2); 915 c->cue_mbuf = m; 916 917 total_len = m->m_pkthdr.len + 2; 918 919 DPRINTFN(10,("%s: %s: total_len=%d\n", 920 device_xname(sc->cue_dev), __func__, total_len)); 921 922 /* The first two bytes are the frame length */ 923 c->cue_buf[0] = (u_int8_t)m->m_pkthdr.len; 924 c->cue_buf[1] = (u_int8_t)(m->m_pkthdr.len >> 8); 925 926 /* XXX 10000 */ 927 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_TX], 928 c, c->cue_buf, total_len, USBD_NO_COPY, 10000, cue_txeof); 929 930 /* Transmit */ 931 err = usbd_transfer(c->cue_xfer); 932 if (err != USBD_IN_PROGRESS) { 933 printf("%s: cue_send error=%s\n", device_xname(sc->cue_dev), 934 usbd_errstr(err)); 935 /* Stop the interface from process context. */ 936 usb_add_task(sc->cue_udev, &sc->cue_stop_task, 937 USB_TASKQ_DRIVER); 938 return (EIO); 939 } 940 941 sc->cue_cdata.cue_tx_cnt++; 942 943 return (0); 944 } 945 946 Static void 947 cue_start(struct ifnet *ifp) 948 { 949 struct cue_softc *sc = ifp->if_softc; 950 struct mbuf *m_head = NULL; 951 952 if (sc->cue_dying) 953 return; 954 955 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 956 957 if (ifp->if_flags & IFF_OACTIVE) 958 return; 959 960 IFQ_POLL(&ifp->if_snd, m_head); 961 if (m_head == NULL) 962 return; 963 964 if (cue_send(sc, m_head, 0)) { 965 ifp->if_flags |= IFF_OACTIVE; 966 return; 967 } 968 969 IFQ_DEQUEUE(&ifp->if_snd, m_head); 970 971 /* 972 * If there's a BPF listener, bounce a copy of this frame 973 * to him. 974 */ 975 bpf_mtap(ifp, m_head); 976 977 ifp->if_flags |= IFF_OACTIVE; 978 979 /* 980 * Set a timeout in case the chip goes out to lunch. 981 */ 982 ifp->if_timer = 5; 983 } 984 985 Static void 986 cue_init(void *xsc) 987 { 988 struct cue_softc *sc = xsc; 989 struct ifnet *ifp = GET_IFP(sc); 990 int i, s, ctl; 991 const u_char *eaddr; 992 993 if (sc->cue_dying) 994 return; 995 996 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 997 998 if (ifp->if_flags & IFF_RUNNING) 999 return; 1000 1001 s = splnet(); 1002 1003 /* 1004 * Cancel pending I/O and free all RX/TX buffers. 1005 */ 1006 #if 1 1007 cue_reset(sc); 1008 #endif 1009 1010 /* Set advanced operation modes. */ 1011 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1012 CUE_AOP_EMBED_RXLEN | 0x03); /* 1 wait state */ 1013 1014 eaddr = CLLADDR(ifp->if_sadl); 1015 /* Set MAC address */ 1016 for (i = 0; i < ETHER_ADDR_LEN; i++) 1017 cue_csr_write_1(sc, CUE_PAR0 - i, eaddr[i]); 1018 1019 /* Enable RX logic. */ 1020 ctl = CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON; 1021 if (ifp->if_flags & IFF_PROMISC) 1022 ctl |= CUE_ETHCTL_PROMISC; 1023 cue_csr_write_1(sc, CUE_ETHCTL, ctl); 1024 1025 /* Init TX ring. */ 1026 if (cue_tx_list_init(sc) == ENOBUFS) { 1027 printf("%s: tx list init failed\n", device_xname(sc->cue_dev)); 1028 splx(s); 1029 return; 1030 } 1031 1032 /* Init RX ring. */ 1033 if (cue_rx_list_init(sc) == ENOBUFS) { 1034 printf("%s: rx list init failed\n", device_xname(sc->cue_dev)); 1035 splx(s); 1036 return; 1037 } 1038 1039 /* Load the multicast filter. */ 1040 cue_setmulti(sc); 1041 1042 /* 1043 * Set the number of RX and TX buffers that we want 1044 * to reserve inside the ASIC. 1045 */ 1046 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES); 1047 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES); 1048 1049 /* Set advanced operation modes. */ 1050 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1051 CUE_AOP_EMBED_RXLEN | 0x01); /* 1 wait state */ 1052 1053 /* Program the LED operation. */ 1054 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK); 1055 1056 if (sc->cue_ep[CUE_ENDPT_RX] == NULL) { 1057 if (cue_open_pipes(sc)) { 1058 splx(s); 1059 return; 1060 } 1061 } 1062 1063 ifp->if_flags |= IFF_RUNNING; 1064 ifp->if_flags &= ~IFF_OACTIVE; 1065 1066 splx(s); 1067 1068 callout_reset(&(sc->cue_stat_ch), (hz), (cue_tick), (sc)); 1069 } 1070 1071 Static int 1072 cue_open_pipes(struct cue_softc *sc) 1073 { 1074 struct cue_chain *c; 1075 usbd_status err; 1076 int i; 1077 1078 /* Open RX and TX pipes. */ 1079 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_RX], 1080 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_RX]); 1081 if (err) { 1082 printf("%s: open rx pipe failed: %s\n", 1083 device_xname(sc->cue_dev), usbd_errstr(err)); 1084 return (EIO); 1085 } 1086 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_TX], 1087 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_TX]); 1088 if (err) { 1089 printf("%s: open tx pipe failed: %s\n", 1090 device_xname(sc->cue_dev), usbd_errstr(err)); 1091 return (EIO); 1092 } 1093 1094 /* Start up the receive pipe. */ 1095 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1096 c = &sc->cue_cdata.cue_rx_chain[i]; 1097 usbd_setup_xfer(c->cue_xfer, sc->cue_ep[CUE_ENDPT_RX], 1098 c, c->cue_buf, CUE_BUFSZ, 1099 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 1100 cue_rxeof); 1101 usbd_transfer(c->cue_xfer); 1102 } 1103 1104 return (0); 1105 } 1106 1107 Static int 1108 cue_ioctl(struct ifnet *ifp, u_long command, void *data) 1109 { 1110 struct cue_softc *sc = ifp->if_softc; 1111 struct ifaddr *ifa = (struct ifaddr *)data; 1112 struct ifreq *ifr = (struct ifreq *)data; 1113 int s, error = 0; 1114 1115 if (sc->cue_dying) 1116 return (EIO); 1117 1118 s = splnet(); 1119 1120 switch(command) { 1121 case SIOCINITIFADDR: 1122 ifp->if_flags |= IFF_UP; 1123 cue_init(sc); 1124 1125 switch (ifa->ifa_addr->sa_family) { 1126 #ifdef INET 1127 case AF_INET: 1128 arp_ifinit(ifp, ifa); 1129 break; 1130 #endif /* INET */ 1131 } 1132 break; 1133 1134 case SIOCSIFMTU: 1135 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 1136 error = EINVAL; 1137 else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) 1138 error = 0; 1139 break; 1140 1141 case SIOCSIFFLAGS: 1142 if ((error = ifioctl_common(ifp, command, data)) != 0) 1143 break; 1144 if (ifp->if_flags & IFF_UP) { 1145 if (ifp->if_flags & IFF_RUNNING && 1146 ifp->if_flags & IFF_PROMISC && 1147 !(sc->cue_if_flags & IFF_PROMISC)) { 1148 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1149 cue_setmulti(sc); 1150 } else if (ifp->if_flags & IFF_RUNNING && 1151 !(ifp->if_flags & IFF_PROMISC) && 1152 sc->cue_if_flags & IFF_PROMISC) { 1153 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1154 cue_setmulti(sc); 1155 } else if (!(ifp->if_flags & IFF_RUNNING)) 1156 cue_init(sc); 1157 } else { 1158 if (ifp->if_flags & IFF_RUNNING) 1159 cue_stop(sc); 1160 } 1161 sc->cue_if_flags = ifp->if_flags; 1162 error = 0; 1163 break; 1164 case SIOCADDMULTI: 1165 case SIOCDELMULTI: 1166 cue_setmulti(sc); 1167 error = 0; 1168 break; 1169 default: 1170 error = ether_ioctl(ifp, command, data); 1171 break; 1172 } 1173 1174 splx(s); 1175 1176 return (error); 1177 } 1178 1179 Static void 1180 cue_watchdog(struct ifnet *ifp) 1181 { 1182 struct cue_softc *sc = ifp->if_softc; 1183 struct cue_chain *c; 1184 usbd_status stat; 1185 int s; 1186 1187 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 1188 1189 if (sc->cue_dying) 1190 return; 1191 1192 ifp->if_oerrors++; 1193 printf("%s: watchdog timeout\n", device_xname(sc->cue_dev)); 1194 1195 s = splusb(); 1196 c = &sc->cue_cdata.cue_tx_chain[0]; 1197 usbd_get_xfer_status(c->cue_xfer, NULL, NULL, NULL, &stat); 1198 cue_txeof(c->cue_xfer, c, stat); 1199 1200 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1201 cue_start(ifp); 1202 splx(s); 1203 } 1204 1205 /* 1206 * Stop the adapter and free any mbufs allocated to the 1207 * RX and TX lists. 1208 */ 1209 Static void 1210 cue_stop(struct cue_softc *sc) 1211 { 1212 usbd_status err; 1213 struct ifnet *ifp; 1214 int i; 1215 1216 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 1217 1218 ifp = GET_IFP(sc); 1219 ifp->if_timer = 0; 1220 1221 cue_csr_write_1(sc, CUE_ETHCTL, 0); 1222 cue_reset(sc); 1223 callout_stop(&sc->cue_stat_ch); 1224 1225 /* Stop transfers. */ 1226 if (sc->cue_ep[CUE_ENDPT_RX] != NULL) { 1227 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1228 if (err) { 1229 printf("%s: abort rx pipe failed: %s\n", 1230 device_xname(sc->cue_dev), usbd_errstr(err)); 1231 } 1232 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1233 if (err) { 1234 printf("%s: close rx pipe failed: %s\n", 1235 device_xname(sc->cue_dev), usbd_errstr(err)); 1236 } 1237 sc->cue_ep[CUE_ENDPT_RX] = NULL; 1238 } 1239 1240 if (sc->cue_ep[CUE_ENDPT_TX] != NULL) { 1241 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1242 if (err) { 1243 printf("%s: abort tx pipe failed: %s\n", 1244 device_xname(sc->cue_dev), usbd_errstr(err)); 1245 } 1246 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1247 if (err) { 1248 printf("%s: close tx pipe failed: %s\n", 1249 device_xname(sc->cue_dev), usbd_errstr(err)); 1250 } 1251 sc->cue_ep[CUE_ENDPT_TX] = NULL; 1252 } 1253 1254 if (sc->cue_ep[CUE_ENDPT_INTR] != NULL) { 1255 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1256 if (err) { 1257 printf("%s: abort intr pipe failed: %s\n", 1258 device_xname(sc->cue_dev), usbd_errstr(err)); 1259 } 1260 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1261 if (err) { 1262 printf("%s: close intr pipe failed: %s\n", 1263 device_xname(sc->cue_dev), usbd_errstr(err)); 1264 } 1265 sc->cue_ep[CUE_ENDPT_INTR] = NULL; 1266 } 1267 1268 /* Free RX resources. */ 1269 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1270 if (sc->cue_cdata.cue_rx_chain[i].cue_mbuf != NULL) { 1271 m_freem(sc->cue_cdata.cue_rx_chain[i].cue_mbuf); 1272 sc->cue_cdata.cue_rx_chain[i].cue_mbuf = NULL; 1273 } 1274 if (sc->cue_cdata.cue_rx_chain[i].cue_xfer != NULL) { 1275 usbd_free_xfer(sc->cue_cdata.cue_rx_chain[i].cue_xfer); 1276 sc->cue_cdata.cue_rx_chain[i].cue_xfer = NULL; 1277 } 1278 } 1279 1280 /* Free TX resources. */ 1281 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 1282 if (sc->cue_cdata.cue_tx_chain[i].cue_mbuf != NULL) { 1283 m_freem(sc->cue_cdata.cue_tx_chain[i].cue_mbuf); 1284 sc->cue_cdata.cue_tx_chain[i].cue_mbuf = NULL; 1285 } 1286 if (sc->cue_cdata.cue_tx_chain[i].cue_xfer != NULL) { 1287 usbd_free_xfer(sc->cue_cdata.cue_tx_chain[i].cue_xfer); 1288 sc->cue_cdata.cue_tx_chain[i].cue_xfer = NULL; 1289 } 1290 } 1291 1292 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1293 } 1294
Indexes created Fri Sep 26 20:09:58 GMT 2025