if_cue.c revision 1.79
1 /* $NetBSD: if_cue.c,v 1.79 2018/07/29 02:00:48 riastradh 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 1.79 2018/07/29 02:00:48 riastradh Exp $"); 60 61 #ifdef _KERNEL_OPT 62 #include "opt_inet.h" 63 #include "opt_usb.h" 64 #endif 65 66 #include <sys/param.h> 67 #include <sys/systm.h> 68 #include <sys/callout.h> 69 #include <sys/sockio.h> 70 #include <sys/mbuf.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(struct usbd_xfer *, void *, usbd_status); 129 Static void cue_txeof(struct usbd_xfer *, void *, 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 uint32_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 uint8_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 uint32_t 341 cue_crc(const char *addr) 342 { 343 uint32_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 uint32_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->uaa_vendor, uaa->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 struct usbd_device * dev = uaa->uaa_device; 461 struct usbd_interface * 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->uaa_product; 488 sc->cue_vendor = uaa->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 strlcpy(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 /* 575 * XXX Halting callout guarantees no more tick tasks. What 576 * guarantees no more stop tasks? What guarantees no more 577 * calls to cue_send? Don't we need to wait for if_detach or 578 * something? Should we set sc->cue_dying here? Is device 579 * deactivation guaranteed to have already happened? 580 */ 581 callout_halt(&sc->cue_stat_ch, NULL); 582 usb_rem_task_wait(sc->cue_udev, &sc->cue_tick_task, USB_TASKQ_DRIVER); 583 usb_rem_task_wait(sc->cue_udev, &sc->cue_stop_task, USB_TASKQ_DRIVER); 584 585 if (!sc->cue_attached) { 586 /* Detached before attached finished, so just bail out. */ 587 return 0; 588 } 589 590 s = splusb(); 591 592 if (ifp->if_flags & IFF_RUNNING) 593 cue_stop(sc); 594 595 rnd_detach_source(&sc->rnd_source); 596 ether_ifdetach(ifp); 597 598 if_detach(ifp); 599 600 #ifdef DIAGNOSTIC 601 if (sc->cue_ep[CUE_ENDPT_TX] != NULL || 602 sc->cue_ep[CUE_ENDPT_RX] != NULL || 603 sc->cue_ep[CUE_ENDPT_INTR] != NULL) 604 aprint_debug_dev(self, "detach has active endpoints\n"); 605 #endif 606 607 sc->cue_attached = 0; 608 splx(s); 609 610 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->cue_udev, sc->cue_dev); 611 612 return 0; 613 } 614 615 int 616 cue_activate(device_t self, enum devact act) 617 { 618 struct cue_softc *sc = device_private(self); 619 620 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 621 622 switch (act) { 623 case DVACT_DEACTIVATE: 624 /* Deactivate the interface. */ 625 if_deactivate(&sc->cue_ec.ec_if); 626 sc->cue_dying = 1; 627 return 0; 628 default: 629 return EOPNOTSUPP; 630 } 631 } 632 633 /* 634 * Initialize an RX descriptor and attach an MBUF cluster. 635 */ 636 Static int 637 cue_newbuf(struct cue_softc *sc, struct cue_chain *c, struct mbuf *m) 638 { 639 struct mbuf *m_new = NULL; 640 641 if (m == NULL) { 642 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 643 if (m_new == NULL) { 644 printf("%s: no memory for rx list " 645 "-- packet dropped!\n", device_xname(sc->cue_dev)); 646 return ENOBUFS; 647 } 648 649 MCLGET(m_new, M_DONTWAIT); 650 if (!(m_new->m_flags & M_EXT)) { 651 printf("%s: no memory for rx list " 652 "-- packet dropped!\n", device_xname(sc->cue_dev)); 653 m_freem(m_new); 654 return ENOBUFS; 655 } 656 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 657 } else { 658 m_new = m; 659 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 660 m_new->m_data = m_new->m_ext.ext_buf; 661 } 662 663 m_adj(m_new, ETHER_ALIGN); 664 c->cue_mbuf = m_new; 665 666 return 0; 667 } 668 669 Static int 670 cue_rx_list_init(struct cue_softc *sc) 671 { 672 struct cue_cdata *cd; 673 struct cue_chain *c; 674 int i; 675 676 cd = &sc->cue_cdata; 677 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 678 c = &cd->cue_rx_chain[i]; 679 c->cue_sc = sc; 680 c->cue_idx = i; 681 if (cue_newbuf(sc, c, NULL) == ENOBUFS) 682 return ENOBUFS; 683 if (c->cue_xfer == NULL) { 684 int error = usbd_create_xfer(sc->cue_ep[CUE_ENDPT_RX], 685 CUE_BUFSZ, 0, 0, &c->cue_xfer); 686 if (error) 687 return error; 688 c->cue_buf = usbd_get_buffer(c->cue_xfer); 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 int error = usbd_create_xfer(sc->cue_ep[CUE_ENDPT_TX], 710 CUE_BUFSZ, 0, 0, &c->cue_xfer); 711 if (error) 712 return error; 713 c->cue_buf = usbd_get_buffer(c->cue_xfer); 714 } 715 } 716 717 return 0; 718 } 719 720 /* 721 * A frame has been uploaded: pass the resulting mbuf chain up to 722 * the higher level protocols. 723 */ 724 Static void 725 cue_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 726 { 727 struct cue_chain *c = priv; 728 struct cue_softc *sc = c->cue_sc; 729 struct ifnet *ifp = GET_IFP(sc); 730 struct mbuf *m; 731 int total_len = 0; 732 uint16_t len; 733 int s; 734 735 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->cue_dev), 736 __func__, status)); 737 738 if (sc->cue_dying) 739 return; 740 741 if (!(ifp->if_flags & IFF_RUNNING)) 742 return; 743 744 if (status != USBD_NORMAL_COMPLETION) { 745 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 746 return; 747 sc->cue_rx_errs++; 748 if (usbd_ratecheck(&sc->cue_rx_notice)) { 749 printf("%s: %u usb errors on rx: %s\n", 750 device_xname(sc->cue_dev), sc->cue_rx_errs, 751 usbd_errstr(status)); 752 sc->cue_rx_errs = 0; 753 } 754 if (status == USBD_STALLED) 755 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_RX]); 756 goto done; 757 } 758 759 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 760 761 memcpy(mtod(c->cue_mbuf, char *), c->cue_buf, total_len); 762 763 m = c->cue_mbuf; 764 len = UGETW(mtod(m, uint8_t *)); 765 766 /* No errors; receive the packet. */ 767 total_len = len; 768 769 if (len < sizeof(struct ether_header)) { 770 ifp->if_ierrors++; 771 goto done; 772 } 773 774 m_adj(m, sizeof(uint16_t)); 775 m->m_pkthdr.len = m->m_len = total_len; 776 777 m_set_rcvif(m, ifp); 778 779 s = splnet(); 780 781 /* XXX ugly */ 782 if (cue_newbuf(sc, c, NULL) == ENOBUFS) { 783 ifp->if_ierrors++; 784 goto done1; 785 } 786 787 DPRINTFN(10,("%s: %s: deliver %d\n", device_xname(sc->cue_dev), 788 __func__, m->m_len)); 789 if_percpuq_enqueue(ifp->if_percpuq, m); 790 done1: 791 splx(s); 792 793 done: 794 795 /* Setup new transfer. */ 796 usbd_setup_xfer(c->cue_xfer, c, c->cue_buf, CUE_BUFSZ, 797 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, cue_rxeof); 798 usbd_transfer(c->cue_xfer); 799 800 DPRINTFN(10,("%s: %s: start rx\n", device_xname(sc->cue_dev), 801 __func__)); 802 } 803 804 /* 805 * A frame was downloaded to the chip. It's safe for us to clean up 806 * the list buffers. 807 */ 808 Static void 809 cue_txeof(struct usbd_xfer *xfer, void *priv, 810 usbd_status status) 811 { 812 struct cue_chain *c = priv; 813 struct cue_softc *sc = c->cue_sc; 814 struct ifnet *ifp = GET_IFP(sc); 815 int s; 816 817 if (sc->cue_dying) 818 return; 819 820 s = splnet(); 821 822 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->cue_dev), 823 __func__, status)); 824 825 ifp->if_timer = 0; 826 ifp->if_flags &= ~IFF_OACTIVE; 827 828 if (status != USBD_NORMAL_COMPLETION) { 829 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 830 splx(s); 831 return; 832 } 833 ifp->if_oerrors++; 834 printf("%s: usb error on tx: %s\n", device_xname(sc->cue_dev), 835 usbd_errstr(status)); 836 if (status == USBD_STALLED) 837 usbd_clear_endpoint_stall_async(sc->cue_ep[CUE_ENDPT_TX]); 838 splx(s); 839 return; 840 } 841 842 ifp->if_opackets++; 843 844 m_freem(c->cue_mbuf); 845 c->cue_mbuf = NULL; 846 847 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 848 cue_start(ifp); 849 850 splx(s); 851 } 852 853 Static void 854 cue_tick(void *xsc) 855 { 856 struct cue_softc *sc = xsc; 857 858 if (sc == NULL) 859 return; 860 861 if (sc->cue_dying) 862 return; 863 864 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 865 866 /* Perform statistics update in process context. */ 867 usb_add_task(sc->cue_udev, &sc->cue_tick_task, USB_TASKQ_DRIVER); 868 } 869 870 Static void 871 cue_tick_task(void *xsc) 872 { 873 struct cue_softc *sc = xsc; 874 struct ifnet *ifp; 875 876 if (sc->cue_dying) 877 return; 878 879 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 880 881 ifp = GET_IFP(sc); 882 883 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_SINGLECOLL); 884 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_MULTICOLL); 885 ifp->if_collisions += cue_csr_read_2(sc, CUE_TX_EXCESSCOLL); 886 887 if (cue_csr_read_2(sc, CUE_RX_FRAMEERR)) 888 ifp->if_ierrors++; 889 } 890 891 Static int 892 cue_send(struct cue_softc *sc, struct mbuf *m, int idx) 893 { 894 int total_len; 895 struct cue_chain *c; 896 usbd_status err; 897 898 c = &sc->cue_cdata.cue_tx_chain[idx]; 899 900 /* 901 * Copy the mbuf data into a contiguous buffer, leaving two 902 * bytes at the beginning to hold the frame length. 903 */ 904 m_copydata(m, 0, m->m_pkthdr.len, c->cue_buf + 2); 905 c->cue_mbuf = m; 906 907 total_len = m->m_pkthdr.len + 2; 908 909 DPRINTFN(10,("%s: %s: total_len=%d\n", 910 device_xname(sc->cue_dev), __func__, total_len)); 911 912 /* The first two bytes are the frame length */ 913 c->cue_buf[0] = (uint8_t)m->m_pkthdr.len; 914 c->cue_buf[1] = (uint8_t)(m->m_pkthdr.len >> 8); 915 916 /* XXX 10000 */ 917 usbd_setup_xfer(c->cue_xfer, c, c->cue_buf, total_len, 0, 10000, 918 cue_txeof); 919 920 /* Transmit */ 921 err = usbd_transfer(c->cue_xfer); 922 if (err != USBD_IN_PROGRESS) { 923 printf("%s: cue_send error=%s\n", device_xname(sc->cue_dev), 924 usbd_errstr(err)); 925 /* Stop the interface from process context. */ 926 usb_add_task(sc->cue_udev, &sc->cue_stop_task, 927 USB_TASKQ_DRIVER); 928 return EIO; 929 } 930 931 sc->cue_cdata.cue_tx_cnt++; 932 933 return 0; 934 } 935 936 Static void 937 cue_start(struct ifnet *ifp) 938 { 939 struct cue_softc *sc = ifp->if_softc; 940 struct mbuf *m_head = NULL; 941 942 if (sc->cue_dying) 943 return; 944 945 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 946 947 if (ifp->if_flags & IFF_OACTIVE) 948 return; 949 950 IFQ_POLL(&ifp->if_snd, m_head); 951 if (m_head == NULL) 952 return; 953 954 if (cue_send(sc, m_head, 0)) { 955 ifp->if_flags |= IFF_OACTIVE; 956 return; 957 } 958 959 IFQ_DEQUEUE(&ifp->if_snd, m_head); 960 961 /* 962 * If there's a BPF listener, bounce a copy of this frame 963 * to him. 964 */ 965 bpf_mtap(ifp, m_head, BPF_D_OUT); 966 967 ifp->if_flags |= IFF_OACTIVE; 968 969 /* 970 * Set a timeout in case the chip goes out to lunch. 971 */ 972 ifp->if_timer = 5; 973 } 974 975 Static void 976 cue_init(void *xsc) 977 { 978 struct cue_softc *sc = xsc; 979 struct ifnet *ifp = GET_IFP(sc); 980 int i, s, ctl; 981 const u_char *eaddr; 982 983 if (sc->cue_dying) 984 return; 985 986 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 987 988 if (ifp->if_flags & IFF_RUNNING) 989 return; 990 991 s = splnet(); 992 993 /* 994 * Cancel pending I/O and free all RX/TX buffers. 995 */ 996 #if 1 997 cue_reset(sc); 998 #endif 999 1000 /* Set advanced operation modes. */ 1001 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1002 CUE_AOP_EMBED_RXLEN | 0x03); /* 1 wait state */ 1003 1004 eaddr = CLLADDR(ifp->if_sadl); 1005 /* Set MAC address */ 1006 for (i = 0; i < ETHER_ADDR_LEN; i++) 1007 cue_csr_write_1(sc, CUE_PAR0 - i, eaddr[i]); 1008 1009 /* Enable RX logic. */ 1010 ctl = CUE_ETHCTL_RX_ON | CUE_ETHCTL_MCAST_ON; 1011 if (ifp->if_flags & IFF_PROMISC) 1012 ctl |= CUE_ETHCTL_PROMISC; 1013 cue_csr_write_1(sc, CUE_ETHCTL, ctl); 1014 1015 /* Load the multicast filter. */ 1016 cue_setmulti(sc); 1017 1018 /* 1019 * Set the number of RX and TX buffers that we want 1020 * to reserve inside the ASIC. 1021 */ 1022 cue_csr_write_1(sc, CUE_RX_BUFPKTS, CUE_RX_FRAMES); 1023 cue_csr_write_1(sc, CUE_TX_BUFPKTS, CUE_TX_FRAMES); 1024 1025 /* Set advanced operation modes. */ 1026 cue_csr_write_1(sc, CUE_ADVANCED_OPMODES, 1027 CUE_AOP_EMBED_RXLEN | 0x01); /* 1 wait state */ 1028 1029 /* Program the LED operation. */ 1030 cue_csr_write_1(sc, CUE_LEDCTL, CUE_LEDCTL_FOLLOW_LINK); 1031 1032 if (sc->cue_ep[CUE_ENDPT_RX] == NULL) { 1033 if (cue_open_pipes(sc)) { 1034 splx(s); 1035 return; 1036 } 1037 } 1038 /* Init TX ring. */ 1039 if (cue_tx_list_init(sc)) { 1040 printf("%s: tx list init failed\n", device_xname(sc->cue_dev)); 1041 splx(s); 1042 return; 1043 } 1044 1045 /* Init RX ring. */ 1046 if (cue_rx_list_init(sc)) { 1047 printf("%s: rx list init failed\n", device_xname(sc->cue_dev)); 1048 splx(s); 1049 return; 1050 } 1051 1052 1053 ifp->if_flags |= IFF_RUNNING; 1054 ifp->if_flags &= ~IFF_OACTIVE; 1055 1056 splx(s); 1057 1058 callout_reset(&(sc->cue_stat_ch), (hz), (cue_tick), (sc)); 1059 } 1060 1061 Static int 1062 cue_open_pipes(struct cue_softc *sc) 1063 { 1064 struct cue_chain *c; 1065 usbd_status err; 1066 int i; 1067 1068 /* Open RX and TX pipes. */ 1069 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_RX], 1070 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_RX]); 1071 if (err) { 1072 printf("%s: open rx pipe failed: %s\n", 1073 device_xname(sc->cue_dev), usbd_errstr(err)); 1074 return EIO; 1075 } 1076 err = usbd_open_pipe(sc->cue_iface, sc->cue_ed[CUE_ENDPT_TX], 1077 USBD_EXCLUSIVE_USE, &sc->cue_ep[CUE_ENDPT_TX]); 1078 if (err) { 1079 printf("%s: open tx pipe failed: %s\n", 1080 device_xname(sc->cue_dev), usbd_errstr(err)); 1081 return EIO; 1082 } 1083 1084 /* Start up the receive pipe. */ 1085 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1086 c = &sc->cue_cdata.cue_rx_chain[i]; 1087 1088 usbd_setup_xfer(c->cue_xfer, c, c->cue_buf, CUE_BUFSZ, 1089 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, cue_rxeof); 1090 usbd_transfer(c->cue_xfer); 1091 } 1092 1093 return 0; 1094 } 1095 1096 Static int 1097 cue_ioctl(struct ifnet *ifp, u_long command, void *data) 1098 { 1099 struct cue_softc *sc = ifp->if_softc; 1100 struct ifaddr *ifa = (struct ifaddr *)data; 1101 struct ifreq *ifr = (struct ifreq *)data; 1102 int s, error = 0; 1103 1104 if (sc->cue_dying) 1105 return EIO; 1106 1107 s = splnet(); 1108 1109 switch(command) { 1110 case SIOCINITIFADDR: 1111 ifp->if_flags |= IFF_UP; 1112 cue_init(sc); 1113 1114 switch (ifa->ifa_addr->sa_family) { 1115 #ifdef INET 1116 case AF_INET: 1117 arp_ifinit(ifp, ifa); 1118 break; 1119 #endif /* INET */ 1120 } 1121 break; 1122 1123 case SIOCSIFMTU: 1124 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 1125 error = EINVAL; 1126 else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) 1127 error = 0; 1128 break; 1129 1130 case SIOCSIFFLAGS: 1131 if ((error = ifioctl_common(ifp, command, data)) != 0) 1132 break; 1133 if (ifp->if_flags & IFF_UP) { 1134 if (ifp->if_flags & IFF_RUNNING && 1135 ifp->if_flags & IFF_PROMISC && 1136 !(sc->cue_if_flags & IFF_PROMISC)) { 1137 CUE_SETBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1138 cue_setmulti(sc); 1139 } else if (ifp->if_flags & IFF_RUNNING && 1140 !(ifp->if_flags & IFF_PROMISC) && 1141 sc->cue_if_flags & IFF_PROMISC) { 1142 CUE_CLRBIT(sc, CUE_ETHCTL, CUE_ETHCTL_PROMISC); 1143 cue_setmulti(sc); 1144 } else if (!(ifp->if_flags & IFF_RUNNING)) 1145 cue_init(sc); 1146 } else { 1147 if (ifp->if_flags & IFF_RUNNING) 1148 cue_stop(sc); 1149 } 1150 sc->cue_if_flags = ifp->if_flags; 1151 error = 0; 1152 break; 1153 case SIOCADDMULTI: 1154 case SIOCDELMULTI: 1155 cue_setmulti(sc); 1156 error = 0; 1157 break; 1158 default: 1159 error = ether_ioctl(ifp, command, data); 1160 break; 1161 } 1162 1163 splx(s); 1164 1165 return error; 1166 } 1167 1168 Static void 1169 cue_watchdog(struct ifnet *ifp) 1170 { 1171 struct cue_softc *sc = ifp->if_softc; 1172 struct cue_chain *c; 1173 usbd_status stat; 1174 int s; 1175 1176 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->cue_dev), __func__)); 1177 1178 if (sc->cue_dying) 1179 return; 1180 1181 ifp->if_oerrors++; 1182 printf("%s: watchdog timeout\n", device_xname(sc->cue_dev)); 1183 1184 s = splusb(); 1185 c = &sc->cue_cdata.cue_tx_chain[0]; 1186 usbd_get_xfer_status(c->cue_xfer, NULL, NULL, NULL, &stat); 1187 cue_txeof(c->cue_xfer, c, stat); 1188 1189 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1190 cue_start(ifp); 1191 splx(s); 1192 } 1193 1194 /* 1195 * Stop the adapter and free any mbufs allocated to the 1196 * RX and TX lists. 1197 */ 1198 Static void 1199 cue_stop(struct cue_softc *sc) 1200 { 1201 usbd_status err; 1202 struct ifnet *ifp; 1203 int i; 1204 1205 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->cue_dev),__func__)); 1206 1207 ifp = GET_IFP(sc); 1208 ifp->if_timer = 0; 1209 1210 cue_csr_write_1(sc, CUE_ETHCTL, 0); 1211 cue_reset(sc); 1212 callout_stop(&sc->cue_stat_ch); 1213 1214 /* Stop transfers. */ 1215 if (sc->cue_ep[CUE_ENDPT_RX] != NULL) { 1216 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1217 if (err) { 1218 printf("%s: abort rx pipe failed: %s\n", 1219 device_xname(sc->cue_dev), usbd_errstr(err)); 1220 } 1221 } 1222 1223 if (sc->cue_ep[CUE_ENDPT_TX] != NULL) { 1224 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1225 if (err) { 1226 printf("%s: abort tx pipe failed: %s\n", 1227 device_xname(sc->cue_dev), usbd_errstr(err)); 1228 } 1229 } 1230 1231 if (sc->cue_ep[CUE_ENDPT_INTR] != NULL) { 1232 err = usbd_abort_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1233 if (err) { 1234 printf("%s: abort intr pipe failed: %s\n", 1235 device_xname(sc->cue_dev), usbd_errstr(err)); 1236 } 1237 } 1238 1239 /* Free RX resources. */ 1240 for (i = 0; i < CUE_RX_LIST_CNT; i++) { 1241 if (sc->cue_cdata.cue_rx_chain[i].cue_xfer != NULL) { 1242 usbd_destroy_xfer(sc->cue_cdata.cue_rx_chain[i].cue_xfer); 1243 sc->cue_cdata.cue_rx_chain[i].cue_xfer = NULL; 1244 } 1245 } 1246 1247 /* Free TX resources. */ 1248 for (i = 0; i < CUE_TX_LIST_CNT; i++) { 1249 if (sc->cue_cdata.cue_tx_chain[i].cue_mbuf != NULL) { 1250 m_freem(sc->cue_cdata.cue_tx_chain[i].cue_mbuf); 1251 sc->cue_cdata.cue_tx_chain[i].cue_mbuf = NULL; 1252 } 1253 if (sc->cue_cdata.cue_tx_chain[i].cue_xfer != NULL) { 1254 usbd_destroy_xfer(sc->cue_cdata.cue_tx_chain[i].cue_xfer); 1255 sc->cue_cdata.cue_tx_chain[i].cue_xfer = NULL; 1256 } 1257 } 1258 1259 /* Stop transfers. */ 1260 if (sc->cue_ep[CUE_ENDPT_RX] != NULL) { 1261 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_RX]); 1262 if (err) { 1263 printf("%s: close rx pipe failed: %s\n", 1264 device_xname(sc->cue_dev), usbd_errstr(err)); 1265 } 1266 sc->cue_ep[CUE_ENDPT_RX] = NULL; 1267 } 1268 1269 if (sc->cue_ep[CUE_ENDPT_TX] != NULL) { 1270 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_TX]); 1271 if (err) { 1272 printf("%s: close tx pipe failed: %s\n", 1273 device_xname(sc->cue_dev), usbd_errstr(err)); 1274 } 1275 sc->cue_ep[CUE_ENDPT_TX] = NULL; 1276 } 1277 1278 if (sc->cue_ep[CUE_ENDPT_INTR] != NULL) { 1279 err = usbd_close_pipe(sc->cue_ep[CUE_ENDPT_INTR]); 1280 if (err) { 1281 printf("%s: close intr pipe failed: %s\n", 1282 device_xname(sc->cue_dev), usbd_errstr(err)); 1283 } 1284 sc->cue_ep[CUE_ENDPT_INTR] = NULL; 1285 } 1286 1287 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1288 } 1289
Indexes created Sun Sep 28 16:09:52 GMT 2025