1 /* $NetBSD: if_cue.c,v 1.73 2016/06/10 13:27:15 ozaki-r 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 1.73 2016/06/10 13:27:15 ozaki-r 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/kernel.h> 71 #include <sys/socket.h> 72 #include <sys/bus.h> 73 #include <sys/device.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(struct usbd_xfer *, void *, usbd_status); 128 Static void cue_txeof(struct usbd_xfer *, void *, 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 uint32_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 uint8_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 uint32_t 340 cue_crc(const char *addr) 341 { 342 uint32_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 uint32_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->uaa_vendor, uaa->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 struct usbd_device * dev = uaa->uaa_device; 460 struct usbd_interface * 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, "failed to set configuration" 481 ", err=%s\n", usbd_errstr(err)); 482 return; 483 } 484 485 sc->cue_udev = dev; 486 sc->cue_product = uaa->uaa_product; 487 sc->cue_vendor = uaa->uaa_vendor; 488 489 usb_init_task(&sc->cue_tick_task, cue_tick_task, sc, 0); 490 usb_init_task(&sc->cue_stop_task, (void (*)(void *))cue_stop, sc, 0); 491 492 err = usbd_device2interface_handle(dev, CUE_IFACE_IDX, &iface); 493 if (err) { 494 aprint_error_dev(self, "getting interface handle failed\n"); 495 return; 496 } 497 498 sc->cue_iface = iface; 499 id = usbd_get_interface_descriptor(iface); 500 501 /* Find endpoints. */ 502 for (i = 0; i < id->bNumEndpoints; i++) { 503 ed = usbd_interface2endpoint_descriptor(iface, i); 504 if (ed == NULL) { 505 aprint_error_dev(self, "couldn't get ep %d\n", i); 506 return; 507 } 508 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 509 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 510 sc->cue_ed[CUE_ENDPT_RX] = ed->bEndpointAddress; 511 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 512 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 513 sc->cue_ed[CUE_ENDPT_TX] = ed->bEndpointAddress; 514 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 515 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 516 sc->cue_ed[CUE_ENDPT_INTR] = ed->bEndpointAddress; 517 } 518 } 519 520 #if 0 521 /* Reset the adapter. */ 522 cue_reset(sc); 523 #endif 524 /* 525 * Get station address. 526 */ 527 cue_getmac(sc, &eaddr); 528 529 s = splnet(); 530 531 /* 532 * A CATC chip was detected. Inform the world. 533 */ 534 aprint_normal_dev(self, "Ethernet address %s\n", ether_sprintf(eaddr)); 535 536 /* Initialize interface info.*/ 537 ifp = GET_IFP(sc); 538 ifp->if_softc = sc; 539 ifp->if_mtu = ETHERMTU; 540 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 541 ifp->if_ioctl = cue_ioctl; 542 ifp->if_start = cue_start; 543 ifp->if_watchdog = cue_watchdog; 544 strncpy(ifp->if_xname, device_xname(sc->cue_dev), IFNAMSIZ); 545 546 IFQ_SET_READY(&ifp->if_snd); 547 548 /* Attach the interface. */ 549 if_attach(ifp); 550 ether_ifattach(ifp, eaddr); 551 rnd_attach_source(&sc->rnd_source, device_xname(sc->cue_dev), 552 RND_TYPE_NET, RND_FLAG_DEFAULT); 553 554 callout_init(&(sc->cue_stat_ch), 0); 555 556 sc->cue_attached = 1; 557 splx(s); 558 559 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->cue_udev, sc->cue_dev); 560 561 return; 562 } 563 564 int 565 cue_detach(device_t self, int flags) 566 { 567 struct cue_softc *sc = device_private(self); 568 struct ifnet *ifp = GET_IFP(sc); 569 int s; 570 571 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 572 573 callout_stop(&sc->cue_stat_ch); 574 /* 575 * Remove any pending task. It cannot be executing because it run 576 * in the same thread as detach. 577 */ 578 usb_rem_task(sc->cue_udev, &sc->cue_tick_task); 579 usb_rem_task(sc->cue_udev, &sc->cue_stop_task); 580 581 if (!sc->cue_attached) { 582 /* Detached before attached finished, so just bail out. */ 583 return 0; 584 } 585 586 s = splusb(); 587 588 if (ifp->if_flags & IFF_RUNNING) 589 cue_stop(sc); 590 591 rnd_detach_source(&sc->rnd_source); 592 ether_ifdetach(ifp); 593 594 if_detach(ifp); 595 596 #ifdef DIAGNOSTIC 597 if (sc->cue_ep[CUE_ENDPT_TX] != NULL || 598 sc->cue_ep[CUE_ENDPT_RX] != NULL || 599 sc->cue_ep[CUE_ENDPT_INTR] != NULL) 600 aprint_debug_dev(self, "detach has active endpoints\n"); 601 #endif 602 603 sc->cue_attached = 0; 604 splx(s); 605 606 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->cue_udev, sc->cue_dev); 607 608 return 0; 609 } 610 611 int 612 cue_activate(device_t self, enum devact act) 613 { 614 struct cue_softc *sc = device_private(self); 615 616 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 617 618 switch (act) { 619 case DVACT_DEACTIVATE: 620 /* Deactivate the interface. */ 621 if_deactivate(&sc->cue_ec.ec_if); 622 sc->cue_dying = 1; 623 return 0; 624 default: 625 return EOPNOTSUPP; 626 } 627 } 628 629 /* 630 * Initialize an RX descriptor and attach an MBUF cluster. 631 */ 632 Static int 633 cue_newbuf(struct cue_softc *sc, struct cue_chain *c, struct mbuf *m) 634 { 635 struct mbuf *m_new = NULL; 636 637 if (m == NULL) { 638 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 639 if (m_new == NULL) { 640 printf("%s: no memory for rx list " 641 "-- packet dropped!\n", device_xname(sc->cue_dev)); 642 return ENOBUFS; 643 } 644 645 MCLGET(m_new, M_DONTWAIT); 646 if (!(m_new->m_flags & M_EXT)) { 647 printf("%s: no memory for rx list " 648 "-- packet dropped!\n", device_xname(sc->cue_dev)); 649 m_freem(m_new); 650 return ENOBUFS; 651 } 652 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 653 } else { 654 m_new = m; 655 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 656 m_new->m_data = m_new->m_ext.ext_buf; 657 } 658 659 m_adj(m_new, ETHER_ALIGN); 660 c->cue_mbuf = m_new; 661 662 return 0; 663 } 664 665 Static int 666 cue_rx_list_init(struct cue_softc *sc) 667 { 668 struct cue_cdata *cd; 669 struct cue_chain *c; 670 int i; 671 672 cd = &sc->cue_cdata; 673 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 674 c = &cd->cue_rx_chain[i]; 675 c->cue_sc = sc; 676 c->cue_idx = i; 677 if (cue_newbuf(sc, c, NULL) == ENOBUFS) 678 return ENOBUFS; 679 if (c->cue_xfer == NULL) { 680 int error = usbd_create_xfer(sc->cue_ep[CUE_ENDPT_RX], 681 CUE_BUFSZ, USBD_SHORT_XFER_OK, 0, &c->cue_xfer); 682 if (error) 683 return error; 684 c->cue_buf = usbd_get_buffer(c->cue_xfer); 685 } 686 } 687 688 return 0; 689 } 690 691 Static int 692 cue_tx_list_init(struct cue_softc *sc) 693 { 694 struct cue_cdata *cd; 695 struct cue_chain *c; 696 int i; 697 698 cd = &sc->cue_cdata; 699 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 700 c = &cd->cue_tx_chain[i]; 701 c->cue_sc = sc; 702 c->cue_idx = i; 703 c->cue_mbuf = NULL; 704 if (c->cue_xfer == NULL) { 705 int error = usbd_create_xfer(sc->cue_ep[CUE_ENDPT_TX], 706 CUE_BUFSZ, 0, 0, &c->cue_xfer); 707 if (error) 708 return error; 709 c->cue_buf = usbd_get_buffer(c->cue_xfer); 710 } 711 } 712 713 return 0; 714 } 715 716 /* 717 * A frame has been uploaded: pass the resulting mbuf chain up to 718 * the higher level protocols. 719 */ 720 Static void 721 cue_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 722 { 723 struct cue_chain *c = priv; 724 struct cue_softc *sc = c->cue_sc; 725 struct ifnet *ifp = GET_IFP(sc); 726 struct mbuf *m; 727 int total_len = 0; 728 uint16_t len; 729 int s; 730 731 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->cue_dev), 732 __func__, status)); 733 734 if (sc->cue_dying) 735 return; 736 737 if (!(ifp->if_flags & IFF_RUNNING)) 738 return; 739 740 if (status != USBD_NORMAL_COMPLETION) { 741 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 742 return; 743 sc->cue_rx_errs++; 744 if (usbd_ratecheck(&sc->cue_rx_notice)) { 745 printf("%s: %u usb errors on rx: %s\n", 746 device_xname(sc->cue_dev), sc->cue_rx_errs, 747 usbd_errstr(status)); 748 sc->cue_rx_errs = 0; 749 } 750 if (status == USBD_STALLED) 751 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_RX]); 752 goto done; 753 } 754 755 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 756 757 memcpy(mtod(c->cue_mbuf, char *), c->cue_buf, total_len); 758 759 m = c->cue_mbuf; 760 len = UGETW(mtod(m, uint8_t *)); 761 762 /* No errors; receive the packet. */ 763 total_len = len; 764 765 if (len < sizeof(struct ether_header)) { 766 ifp->if_ierrors++; 767 goto done; 768 } 769 770 ifp->if_ipackets++; 771 m_adj(m, sizeof(uint16_t)); 772 m->m_pkthdr.len = m->m_len = total_len; 773 774 m_set_rcvif(m, ifp); 775 776 s = splnet(); 777 778 /* XXX ugly */ 779 if (cue_newbuf(sc, c, NULL) == ENOBUFS) { 780 ifp->if_ierrors++; 781 goto done1; 782 } 783 784 /* 785 * Handle BPF listeners. Let the BPF user see the packet, but 786 * don't pass it up to the ether_input() layer unless it's 787 * a broadcast packet, multicast packet, matches our ethernet 788 * address or the interface is in promiscuous mode. 789 */ 790 bpf_mtap(ifp, m); 791 792 DPRINTFN(10,("%s: %s: deliver %d\n", device_xname(sc->cue_dev), 793 __func__, m->m_len)); 794 if_percpuq_enqueue(ifp->if_percpuq, m); 795 done1: 796 splx(s); 797 798 done: 799 800 /* Setup new transfer. */ 801 usbd_setup_xfer(c->cue_xfer, c, c->cue_buf, CUE_BUFSZ, 802 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, cue_rxeof); 803 usbd_transfer(c->cue_xfer); 804 805 DPRINTFN(10,("%s: %s: start rx\n", device_xname(sc->cue_dev), 806 __func__)); 807 } 808 809 /* 810 * A frame was downloaded to the chip. It's safe for us to clean up 811 * the list buffers. 812 */ 813 Static void 814 cue_txeof(struct usbd_xfer *xfer, void *priv, 815 usbd_status status) 816 { 817 struct cue_chain *c = priv; 818 struct cue_softc *sc = c->cue_sc; 819 struct ifnet *ifp = GET_IFP(sc); 820 int s; 821 822 if (sc->cue_dying) 823 return; 824 825 s = splnet(); 826 827 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->cue_dev), 828 __func__, status)); 829 830 ifp->if_timer = 0; 831 ifp->if_flags &= ~IFF_OACTIVE; 832 833 if (status != USBD_NORMAL_COMPLETION) { 834 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 835 splx(s); 836 return; 837 } 838 ifp->if_oerrors++; 839 printf("%s: usb error on tx: %s\n", device_xname(sc->cue_dev), 840 usbd_errstr(status)); 841 if (status == USBD_STALLED) 842 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_TX]); 843 splx(s); 844 return; 845 } 846 847 ifp->if_opackets++; 848 849 m_freem(c->cue_mbuf); 850 c->cue_mbuf = NULL; 851 852 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 853 cue_start(ifp); 854 855 splx(s); 856 } 857 858 Static void 859 cue_tick(void *xsc) 860 { 861 struct cue_softc *sc = xsc; 862 863 if (sc == NULL) 864 return; 865 866 if (sc->cue_dying) 867 return; 868 869 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 870 871 /* Perform statistics update in process context. */ 872 usb_add_task(sc->cue_udev, &sc->cue_tick_task, USB_TASKQ_DRIVER); 873 } 874 875 Static void 876 cue_tick_task(void *xsc) 877 { 878 struct cue_softc *sc = xsc; 879 struct ifnet *ifp; 880 881 if (sc->cue_dying) 882 return; 883 884 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 885 886 ifp = GET_IFP(sc); 887 888 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_SINGLECOLL); 889 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_MULTICOLL); 890 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_EXCESSCOLL); 891 892 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR)) 893 ifp->if_ierrors++; 894 } 895 896 Static int 897 cue_send(struct cue_softc *sc, struct mbuf *m, int idx) 898 { 899 int total_len; 900 struct cue_chain *c; 901 usbd_status err; 902 903 c = &sc->cue_cdata.cue_tx_chain[idx]; 904 905 /* 906 * Copy the mbuf data into a contiguous buffer, leaving two 907 * bytes at the beginning to hold the frame length. 908 */ 909 m_copydata(m, 0, m->m_pkthdr.len, c->cue_buf + 2); 910 c->cue_mbuf = m; 911 912 total_len = m->m_pkthdr.len + 2; 913 914 DPRINTFN(10,("%s: %s: total_len=%d\n", 915 device_xname(sc->cue_dev), __func__, total_len)); 916 917 /* The first two bytes are the frame length */ 918 c->cue_buf[0] = (uint8_t)m->m_pkthdr.len; 919 c->cue_buf[1] = (uint8_t)(m->m_pkthdr.len >> 8); 920 921 /* XXX 10000 */ 922 usbd_setup_xfer(c->cue_xfer, c, c->cue_buf, total_len, 0, 10000, 923 cue_txeof); 924 925 /* Transmit */ 926 err = usbd_transfer(c->cue_xfer); 927 if (err != USBD_IN_PROGRESS) { 928 printf("%s: cue_send error=%s\n", device_xname(sc->cue_dev), 929 usbd_errstr(err)); 930 /* Stop the interface from process context. */ 931 usb_add_task(sc->cue_udev, &sc->cue_stop_task, 932 USB_TASKQ_DRIVER); 933 return EIO; 934 } 935 936 sc->cue_cdata.cue_tx_cnt++; 937 938 return 0; 939 } 940 941 Static void 942 cue_start(struct ifnet *ifp) 943 { 944 struct cue_softc *sc = ifp->if_softc; 945 struct mbuf *m_head = NULL; 946 947 if (sc->cue_dying) 948 return; 949 950 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 951 952 if (ifp->if_flags & IFF_OACTIVE) 953 return; 954 955 IFQ_POLL(&ifp->if_snd, m_head); 956 if (m_head == NULL) 957 return; 958 959 if (cue_send(sc, m_head, 0)) { 960 ifp->if_flags |= IFF_OACTIVE; 961 return; 962 } 963 964 IFQ_DEQUEUE(&ifp->if_snd, m_head); 965 966 /* 967 * If there's a BPF listener, bounce a copy of this frame 968 * to him. 969 */ 970 bpf_mtap(ifp, m_head); 971 972 ifp->if_flags |= IFF_OACTIVE; 973 974 /* 975 * Set a timeout in case the chip goes out to lunch. 976 */ 977 ifp->if_timer = 5; 978 } 979 980 Static void 981 cue_init(void *xsc) 982 { 983 struct cue_softc *sc = xsc; 984 struct ifnet *ifp = GET_IFP(sc); 985 int i, s, ctl; 986 const u_char *eaddr; 987 988 if (sc->cue_dying) 989 return; 990 991 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 992 993 if (ifp->if_flags & IFF_RUNNING) 994 return; 995 996 s = splnet(); 997 998 /* 999 * Cancel pending I/O and free all RX/TX buffers. 1000 */ 1001 #if 1 1002 cue_reset(sc); 1003 #endif 1004 1005 /* Set advanced operation modes. */ 1006 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1007 CUE_AOP_EMBED_RXLEN | 0x03); /* 1 wait state */ 1008 1009 eaddr = CLLADDR(ifp->if_sadl); 1010 /* Set MAC address */ 1011 for (i = 0; i < ETHER_ADDR_LEN; i++) 1012 cue_csr_write_1(sc, CUE_PAR0 - i, eaddr[i]); 1013 1014 /* Enable RX logic. */ 1015 ctl = CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON; 1016 if (ifp->if_flags & IFF_PROMISC) 1017 ctl |= CUE_ETHCTL_PROMISC; 1018 cue_csr_write_1(sc, CUE_ETHCTL, ctl); 1019 1020 /* Load the multicast filter. */ 1021 cue_setmulti(sc); 1022 1023 /* 1024 * Set the number of RX and TX buffers that we want 1025 * to reserve inside the ASIC. 1026 */ 1027 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES); 1028 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES); 1029 1030 /* Set advanced operation modes. */ 1031 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1032 CUE_AOP_EMBED_RXLEN | 0x01); /* 1 wait state */ 1033 1034 /* Program the LED operation. */ 1035 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK); 1036 1037 if (sc->cue_ep[CUE_ENDPT_RX] == NULL) { 1038 if (cue_open_pipes(sc)) { 1039 splx(s); 1040 return; 1041 } 1042 } 1043 /* Init TX ring. */ 1044 if (cue_tx_list_init(sc)) { 1045 printf("%s: tx list init failed\n", device_xname(sc->cue_dev)); 1046 splx(s); 1047 return; 1048 } 1049 1050 /* Init RX ring. */ 1051 if (cue_rx_list_init(sc)) { 1052 printf("%s: rx list init failed\n", device_xname(sc->cue_dev)); 1053 splx(s); 1054 return; 1055 } 1056 1057 1058 ifp->if_flags |= IFF_RUNNING; 1059 ifp->if_flags &= ~IFF_OACTIVE; 1060 1061 splx(s); 1062 1063 callout_reset(&(sc->cue_stat_ch), (hz), (cue_tick), (sc)); 1064 } 1065 1066 Static int 1067 cue_open_pipes(struct cue_softc *sc) 1068 { 1069 struct cue_chain *c; 1070 usbd_status err; 1071 int i; 1072 1073 /* Open RX and TX pipes. */ 1074 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_RX], 1075 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_RX]); 1076 if (err) { 1077 printf("%s: open rx pipe failed: %s\n", 1078 device_xname(sc->cue_dev), usbd_errstr(err)); 1079 return EIO; 1080 } 1081 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_TX], 1082 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_TX]); 1083 if (err) { 1084 printf("%s: open tx pipe failed: %s\n", 1085 device_xname(sc->cue_dev), usbd_errstr(err)); 1086 return EIO; 1087 } 1088 1089 /* Start up the receive pipe. */ 1090 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1091 c = &sc->cue_cdata.cue_rx_chain[i]; 1092 1093 usbd_setup_xfer(c->cue_xfer, c, c->cue_buf, CUE_BUFSZ, 1094 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, cue_rxeof); 1095 usbd_transfer(c->cue_xfer); 1096 } 1097 1098 return 0; 1099 } 1100 1101 Static int 1102 cue_ioctl(struct ifnet *ifp, u_long command, void *data) 1103 { 1104 struct cue_softc *sc = ifp->if_softc; 1105 struct ifaddr *ifa = (struct ifaddr *)data; 1106 struct ifreq *ifr = (struct ifreq *)data; 1107 int s, error = 0; 1108 1109 if (sc->cue_dying) 1110 return EIO; 1111 1112 s = splnet(); 1113 1114 switch(command) { 1115 case SIOCINITIFADDR: 1116 ifp->if_flags |= IFF_UP; 1117 cue_init(sc); 1118 1119 switch (ifa->ifa_addr->sa_family) { 1120 #ifdef INET 1121 case AF_INET: 1122 arp_ifinit(ifp, ifa); 1123 break; 1124 #endif /* INET */ 1125 } 1126 break; 1127 1128 case SIOCSIFMTU: 1129 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 1130 error = EINVAL; 1131 else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) 1132 error = 0; 1133 break; 1134 1135 case SIOCSIFFLAGS: 1136 if ((error = ifioctl_common(ifp, command, data)) != 0) 1137 break; 1138 if (ifp->if_flags & IFF_UP) { 1139 if (ifp->if_flags & IFF_RUNNING && 1140 ifp->if_flags & IFF_PROMISC && 1141 !(sc->cue_if_flags & IFF_PROMISC)) { 1142 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1143 cue_setmulti(sc); 1144 } else if (ifp->if_flags & IFF_RUNNING && 1145 !(ifp->if_flags & IFF_PROMISC) && 1146 sc->cue_if_flags & IFF_PROMISC) { 1147 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1148 cue_setmulti(sc); 1149 } else if (!(ifp->if_flags & IFF_RUNNING)) 1150 cue_init(sc); 1151 } else { 1152 if (ifp->if_flags & IFF_RUNNING) 1153 cue_stop(sc); 1154 } 1155 sc->cue_if_flags = ifp->if_flags; 1156 error = 0; 1157 break; 1158 case SIOCADDMULTI: 1159 case SIOCDELMULTI: 1160 cue_setmulti(sc); 1161 error = 0; 1162 break; 1163 default: 1164 error = ether_ioctl(ifp, command, data); 1165 break; 1166 } 1167 1168 splx(s); 1169 1170 return error; 1171 } 1172 1173 Static void 1174 cue_watchdog(struct ifnet *ifp) 1175 { 1176 struct cue_softc *sc = ifp->if_softc; 1177 struct cue_chain *c; 1178 usbd_status stat; 1179 int s; 1180 1181 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 1182 1183 if (sc->cue_dying) 1184 return; 1185 1186 ifp->if_oerrors++; 1187 printf("%s: watchdog timeout\n", device_xname(sc->cue_dev)); 1188 1189 s = splusb(); 1190 c = &sc->cue_cdata.cue_tx_chain[0]; 1191 usbd_get_xfer_status(c->cue_xfer, NULL, NULL, NULL, &stat); 1192 cue_txeof(c->cue_xfer, c, stat); 1193 1194 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1195 cue_start(ifp); 1196 splx(s); 1197 } 1198 1199 /* 1200 * Stop the adapter and free any mbufs allocated to the 1201 * RX and TX lists. 1202 */ 1203 Static void 1204 cue_stop(struct cue_softc *sc) 1205 { 1206 usbd_status err; 1207 struct ifnet *ifp; 1208 int i; 1209 1210 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 1211 1212 ifp = GET_IFP(sc); 1213 ifp->if_timer = 0; 1214 1215 cue_csr_write_1(sc, CUE_ETHCTL, 0); 1216 cue_reset(sc); 1217 callout_stop(&sc->cue_stat_ch); 1218 1219 /* Stop transfers. */ 1220 if (sc->cue_ep[CUE_ENDPT_RX] != NULL) { 1221 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1222 if (err) { 1223 printf("%s: abort rx pipe failed: %s\n", 1224 device_xname(sc->cue_dev), usbd_errstr(err)); 1225 } 1226 } 1227 1228 if (sc->cue_ep[CUE_ENDPT_TX] != NULL) { 1229 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1230 if (err) { 1231 printf("%s: abort tx pipe failed: %s\n", 1232 device_xname(sc->cue_dev), usbd_errstr(err)); 1233 } 1234 } 1235 1236 if (sc->cue_ep[CUE_ENDPT_INTR] != NULL) { 1237 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1238 if (err) { 1239 printf("%s: abort intr pipe failed: %s\n", 1240 device_xname(sc->cue_dev), usbd_errstr(err)); 1241 } 1242 } 1243 1244 /* Free RX resources. */ 1245 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1246 if (sc->cue_cdata.cue_rx_chain[i].cue_xfer != NULL) { 1247 usbd_destroy_xfer(sc->cue_cdata.cue_rx_chain[i].cue_xfer); 1248 sc->cue_cdata.cue_rx_chain[i].cue_xfer = NULL; 1249 } 1250 } 1251 1252 /* Free TX resources. */ 1253 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 1254 if (sc->cue_cdata.cue_tx_chain[i].cue_mbuf != NULL) { 1255 m_freem(sc->cue_cdata.cue_tx_chain[i].cue_mbuf); 1256 sc->cue_cdata.cue_tx_chain[i].cue_mbuf = NULL; 1257 } 1258 if (sc->cue_cdata.cue_tx_chain[i].cue_xfer != NULL) { 1259 usbd_destroy_xfer(sc->cue_cdata.cue_tx_chain[i].cue_xfer); 1260 sc->cue_cdata.cue_tx_chain[i].cue_xfer = NULL; 1261 } 1262 } 1263 1264 /* Stop transfers. */ 1265 if (sc->cue_ep[CUE_ENDPT_RX] != NULL) { 1266 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1267 if (err) { 1268 printf("%s: close rx pipe failed: %s\n", 1269 device_xname(sc->cue_dev), usbd_errstr(err)); 1270 } 1271 sc->cue_ep[CUE_ENDPT_RX] = NULL; 1272 } 1273 1274 if (sc->cue_ep[CUE_ENDPT_TX] != NULL) { 1275 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1276 if (err) { 1277 printf("%s: close tx pipe failed: %s\n", 1278 device_xname(sc->cue_dev), usbd_errstr(err)); 1279 } 1280 sc->cue_ep[CUE_ENDPT_TX] = NULL; 1281 } 1282 1283 if (sc->cue_ep[CUE_ENDPT_INTR] != NULL) { 1284 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1285 if (err) { 1286 printf("%s: close intr pipe failed: %s\n", 1287 device_xname(sc->cue_dev), usbd_errstr(err)); 1288 } 1289 sc->cue_ep[CUE_ENDPT_INTR] = NULL; 1290 } 1291 1292 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1293 } 1294