if_fwip.c revision 1.11
1 /* $NetBSD: if_fwip.c,v 1.11 2007/12/09 20:28:01 jmcneill Exp $ */ 2 /*- 3 * Copyright (c) 2004 4 * Doug Rabson 5 * Copyright (c) 2002-2003 6 * Hidetoshi Shimokawa. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * 19 * This product includes software developed by Hidetoshi Shimokawa. 20 * 21 * 4. Neither the name of the author nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * $FreeBSD: src/sys/dev/firewire/if_fwip.c,v 1.16 2007/06/06 14:31:36 simokawa Exp $ 38 */ 39 40 #ifdef HAVE_KERNEL_OPTION_HEADERS 41 #include "opt_device_polling.h" 42 #include "opt_inet.h" 43 #endif 44 45 #if defined(__FreeBSD__) 46 #include <sys/param.h> 47 #include <sys/kernel.h> 48 #include <sys/malloc.h> 49 #include <sys/mbuf.h> 50 #include <sys/socket.h> 51 #include <sys/sockio.h> 52 #include <sys/sysctl.h> 53 #include <sys/systm.h> 54 #include <sys/taskqueue.h> 55 #include <sys/module.h> 56 #include <sys/bus.h> 57 #include <sys/bus.h> 58 59 #include <net/bpf.h> 60 #include <net/if.h> 61 #include <net/firewire.h> 62 #include <net/if_arp.h> 63 #include <net/if_types.h> 64 #ifdef __DragonFly__ 65 #include <bus/firewire/fw_port.h> 66 #include <bus/firewire/firewire.h> 67 #include <bus/firewire/firewirereg.h> 68 #include "if_fwipvar.h" 69 #else 70 #include <dev/firewire/fw_port.h> 71 #include <dev/firewire/firewire.h> 72 #include <dev/firewire/firewirereg.h> 73 #include <dev/firewire/iec13213.h> 74 #include <dev/firewire/if_fwipvar.h> 75 #endif 76 #elif defined(__NetBSD__) 77 #include <sys/param.h> 78 #include <sys/device.h> 79 #include <sys/errno.h> 80 #include <sys/malloc.h> 81 #include <sys/mbuf.h> 82 #include <sys/sysctl.h> 83 84 #include <sys/bus.h> 85 86 #include <net/if.h> 87 #include <net/if_ieee1394.h> 88 #include <net/if_types.h> 89 90 #include <dev/ieee1394/fw_port.h> 91 #include <dev/ieee1394/firewire.h> 92 #include <dev/ieee1394/firewirereg.h> 93 #include <dev/ieee1394/iec13213.h> 94 #include <dev/ieee1394/if_fwipvar.h> 95 #endif 96 97 /* 98 * We really need a mechanism for allocating regions in the FIFO 99 * address space. We pick a address in the OHCI controller's 'middle' 100 * address space. This means that the controller will automatically 101 * send responses for us, which is fine since we don't have any 102 * important information to put in the response anyway. 103 */ 104 #define INET_FIFO 0xfffe00000000LL 105 106 #if defined(__FreeBSD__) 107 #define FWIPDEBUG if (fwipdebug) if_printf 108 #elif defined(__NetBSD__) 109 #define FWIPDEBUG(ifp, fmt, ...) \ 110 if (fwipdebug) { \ 111 printf("%s: ", (ifp)->if_xname);\ 112 printf((fmt) , ##__VA_ARGS__); \ 113 } 114 #endif 115 #define TX_MAX_QUEUE (FWMAXQUEUE - 1) 116 117 #if defined(__NetBSD__) 118 int fwipmatch (struct device *, struct cfdata *, void *); 119 void fwipattach (struct device *, struct device *, void *); 120 int fwipdetach (struct device *, int); 121 int fwipactivate (struct device *, enum devact); 122 123 #endif 124 /* network interface */ 125 static void fwip_start (struct ifnet *); 126 static int fwip_ioctl (struct ifnet *, u_long, void *); 127 #if defined(__FreeBSD__) 128 static void fwip_init(void *); 129 static void fwip_stop(struct fwip_softc *); 130 #elif defined(__NetBSD__) 131 static int fwip_init(struct ifnet *); 132 static void fwip_stop(struct ifnet *, int); 133 #endif 134 135 static void fwip_post_busreset (void *); 136 static void fwip_output_callback (struct fw_xfer *); 137 static void fwip_async_output (struct fwip_softc *, struct ifnet *); 138 static void fwip_start_send (void *, int); 139 static void fwip_stream_input (struct fw_xferq *); 140 static void fwip_unicast_input(struct fw_xfer *); 141 142 static int fwipdebug = 0; 143 static int broadcast_channel = 0xc0 | 0x1f; /* tag | channel(XXX) */ 144 static int tx_speed = 2; 145 static int rx_queue_len = FWMAXQUEUE; 146 147 #if defined(__FreeBSD__) 148 MALLOC_DEFINE(M_FWIP, "if_fwip", "IP over FireWire interface"); 149 SYSCTL_INT(_debug, OID_AUTO, if_fwip_debug, CTLFLAG_RW, &fwipdebug, 0, ""); 150 SYSCTL_DECL(_hw_firewire); 151 SYSCTL_NODE(_hw_firewire, OID_AUTO, fwip, CTLFLAG_RD, 0, 152 "Firewire ip subsystem"); 153 SYSCTL_INT(_hw_firewire_fwip, OID_AUTO, rx_queue_len, CTLFLAG_RW, &rx_queue_len, 154 0, "Length of the receive queue"); 155 156 TUNABLE_INT("hw.firewire.fwip.rx_queue_len", &rx_queue_len); 157 #elif defined(__NetBSD__) 158 MALLOC_DEFINE(M_FWIP, "if_fwip", "IP over IEEE1394 interface"); 159 /* 160 * Setup sysctl(3) MIB, hw.fwip.* 161 * 162 * TBD condition CTLFLAG_PERMANENT on being an LKM or not 163 */ 164 SYSCTL_SETUP(sysctl_fwip, "sysctl fwip(4) subtree setup") 165 { 166 int rc, fwip_node_num; 167 const struct sysctlnode *node; 168 169 if ((rc = sysctl_createv(clog, 0, NULL, NULL, 170 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 171 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) { 172 goto err; 173 } 174 175 if ((rc = sysctl_createv(clog, 0, NULL, &node, 176 CTLFLAG_PERMANENT, CTLTYPE_NODE, "fwip", 177 SYSCTL_DESCR("fwip controls"), 178 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) { 179 goto err; 180 } 181 fwip_node_num = node->sysctl_num; 182 183 /* fwip RX queue length */ 184 if ((rc = sysctl_createv(clog, 0, NULL, &node, 185 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 186 "rx_queue_len", SYSCTL_DESCR("Length of the receive queue"), 187 NULL, 0, &rx_queue_len, 188 0, CTL_HW, fwip_node_num, CTL_CREATE, CTL_EOL)) != 0) { 189 goto err; 190 } 191 192 /* fwip RX queue length */ 193 if ((rc = sysctl_createv(clog, 0, NULL, &node, 194 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 195 "if_fwip_debug", SYSCTL_DESCR("fwip driver debug flag"), 196 NULL, 0, &fwipdebug, 197 0, CTL_HW, fwip_node_num, CTL_CREATE, CTL_EOL)) != 0) { 198 goto err; 199 } 200 201 return; 202 203 err: 204 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 205 } 206 #endif 207 208 #ifdef DEVICE_POLLING 209 static poll_handler_t fwip_poll; 210 211 static void 212 fwip_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 213 { 214 struct fwip_softc *fwip; 215 struct firewire_comm *fc; 216 217 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 218 return; 219 220 fwip = ((struct fwip_eth_softc *)ifp->if_softc)->fwip; 221 fc = fwip->fd.fc; 222 fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count); 223 } 224 #endif /* DEVICE_POLLING */ 225 #if defined(__FreeBSD__) 226 static void 227 fwip_identify(driver_t *driver, device_t parent) 228 { 229 BUS_ADD_CHILD(parent, 0, "fwip", fw_get_unit(parent)); 230 } 231 232 static int 233 fwip_probe(device_t dev) 234 { 235 device_t pa; 236 237 pa = device_get_parent(dev); 238 if(fw_get_unit(dev) != fw_get_unit(pa)){ 239 return(ENXIO); 240 } 241 242 device_set_desc(dev, "IP over FireWire"); 243 return (0); 244 } 245 #elif defined(__NetBSD__) 246 int 247 fwipmatch(struct device *parent, struct cfdata *cf, void *aux) 248 { 249 struct fw_attach_args *fwa = aux; 250 251 if (strcmp(fwa->name, "fwip") == 0) 252 return (1); 253 return (0); 254 } 255 #endif 256 257 FW_ATTACH(fwip) 258 { 259 FW_ATTACH_START(fwip, fwip, fwa); 260 FWIP_ATTACH_START; 261 struct ifnet *ifp; 262 int s; 263 264 FWIP_ATTACH_SETUP; 265 266 ifp = fwip->fw_softc.fwip_ifp; 267 if (ifp == NULL) 268 FW_ATTACH_RETURN(ENOSPC); 269 270 fw_mtx_init(&fwip->mtx, "fwip", NULL, MTX_DEF); 271 /* XXX */ 272 fwip->dma_ch = -1; 273 274 fwip->fd.fc = fwa->fc; 275 if (tx_speed < 0) 276 tx_speed = fwip->fd.fc->speed; 277 278 fwip->fd.post_explore = NULL; 279 fwip->fd.post_busreset = fwip_post_busreset; 280 fwip->fw_softc.fwip = fwip; 281 FW_TASK_INIT(&fwip->start_send, 0, fwip_start_send, fwip); 282 283 /* 284 * Encode our hardware the way that arp likes it. 285 */ 286 hwaddr->sender_unique_ID_hi = htonl(fwip->fd.fc->eui.hi); 287 hwaddr->sender_unique_ID_lo = htonl(fwip->fd.fc->eui.lo); 288 hwaddr->sender_max_rec = fwip->fd.fc->maxrec; 289 hwaddr->sspd = fwip->fd.fc->speed; 290 hwaddr->sender_unicast_FIFO_hi = htons((uint16_t)(INET_FIFO >> 32)); 291 hwaddr->sender_unicast_FIFO_lo = htonl((uint32_t)INET_FIFO); 292 293 /* fill the rest and attach interface */ 294 ifp->if_softc = &fwip->fw_softc; 295 296 #if __FreeBSD_version >= 501113 || defined(__DragonFly__) || defined(__NetBSD__) 297 IF_INITNAME(ifp, dev, unit); 298 #else 299 ifp->if_unit = unit; 300 ifp->if_name = "fwip"; 301 #endif 302 #if defined(__NetBSD__) 303 IFQ_SET_READY(&ifp->if_snd); 304 #endif 305 SET_IFFUNC(ifp, fwip_start, fwip_ioctl, fwip_init, fwip_stop); 306 ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST); 307 ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE; 308 #ifdef DEVICE_POLLING 309 ifp->if_capabilities |= IFCAP_POLLING; 310 #endif 311 312 s = splfwnet(); 313 FIREWIRE_IFATTACH(ifp, hwaddr); 314 splx(s); 315 316 #if defined(__NetBSD__) 317 if (!pmf_device_register(self, NULL, NULL)) 318 aprint_error_dev(self, "couldn't establish power handler\n"); 319 else 320 pmf_class_network_register(self, ifp); 321 #endif 322 323 FWIPDEBUG(ifp, "interface created\n"); 324 FW_ATTACH_RETURN(0); 325 } 326 327 IF_STOP(fwip) 328 { 329 IF_STOP_START(fwip, ifp, fwip); 330 struct firewire_comm *fc; 331 struct fw_xferq *xferq; 332 struct fw_xfer *xfer, *next; 333 int i; 334 335 fc = fwip->fd.fc; 336 337 if (fwip->dma_ch >= 0) { 338 xferq = fc->ir[fwip->dma_ch]; 339 340 if (xferq->flag & FWXFERQ_RUNNING) 341 fc->irx_disable(fc, fwip->dma_ch); 342 xferq->flag &= 343 ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 344 FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 345 xferq->hand = NULL; 346 347 for (i = 0; i < xferq->bnchunk; i ++) 348 m_freem(xferq->bulkxfer[i].mbuf); 349 free(xferq->bulkxfer, M_FWIP); 350 351 fw_bindremove(fc, &fwip->fwb); 352 for (xfer = STAILQ_FIRST(&fwip->fwb.xferlist); xfer != NULL; 353 xfer = next) { 354 next = STAILQ_NEXT(xfer, link); 355 fw_xfer_free(xfer); 356 } 357 358 for (xfer = STAILQ_FIRST(&fwip->xferlist); xfer != NULL; 359 xfer = next) { 360 next = STAILQ_NEXT(xfer, link); 361 fw_xfer_free(xfer); 362 } 363 STAILQ_INIT(&fwip->xferlist); 364 365 xferq->bulkxfer = NULL; 366 fwip->dma_ch = -1; 367 } 368 369 #if defined(__FreeBSD__) 370 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 371 #elif defined(__NetBSD__) 372 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 373 #endif 374 } 375 376 FW_DETACH(fwip) 377 { 378 IF_DETACH_START(fwip, fwip); 379 struct ifnet *ifp; 380 int s; 381 382 ifp = fwip->fw_softc.fwip_ifp; 383 384 #ifdef DEVICE_POLLING 385 if (ifp->if_capenable & IFCAP_POLLING) 386 ether_poll_deregister(ifp); 387 #endif 388 389 s = splfwnet(); 390 391 FWIP_STOP(fwip); 392 FIREWIRE_IFDETACH(ifp); 393 fw_mtx_destroy(&fwip->mtx); 394 395 splx(s); 396 return 0; 397 } 398 399 #if defined(__NetBSD__) 400 int 401 fwipactivate(struct device *self, enum devact act) 402 { 403 struct fwip_softc *fwip = (struct fwip_softc *)self; 404 int s, error = 0; 405 406 s = splfwnet(); 407 switch (act) { 408 case DVACT_ACTIVATE: 409 error = EOPNOTSUPP; 410 break; 411 412 case DVACT_DEACTIVATE: 413 if_deactivate(fwip->fw_softc.fwip_ifp); 414 break; 415 } 416 splx(s); 417 418 return (error); 419 } 420 421 #endif 422 IF_INIT(fwip) 423 { 424 IF_INIT_START(fwip, fwip, ifp); 425 struct firewire_comm *fc; 426 struct fw_xferq *xferq; 427 struct fw_xfer *xfer; 428 struct mbuf *m; 429 int i; 430 431 FWIPDEBUG(ifp, "initializing\n"); 432 433 fc = fwip->fd.fc; 434 #define START 0 435 if (fwip->dma_ch < 0) { 436 fwip->dma_ch = fw_open_isodma(fc, /* tx */0); 437 if (fwip->dma_ch < 0) 438 IF_INIT_RETURN(ENXIO); 439 xferq = fc->ir[fwip->dma_ch]; 440 xferq->flag |= 441 FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_STREAM; 442 xferq->flag &= ~0xff; 443 xferq->flag |= broadcast_channel & 0xff; 444 /* register fwip_input handler */ 445 xferq->sc = (void *) fwip; 446 xferq->hand = fwip_stream_input; 447 xferq->bnchunk = rx_queue_len; 448 xferq->bnpacket = 1; 449 xferq->psize = MCLBYTES; 450 xferq->queued = 0; 451 xferq->buf = NULL; 452 xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 453 sizeof(struct fw_bulkxfer) * xferq->bnchunk, 454 M_FWIP, M_WAITOK); 455 if (xferq->bulkxfer == NULL) { 456 printf("if_fwip: malloc failed\n"); 457 IF_INIT_RETURN(ENOMEM); 458 } 459 STAILQ_INIT(&xferq->stvalid); 460 STAILQ_INIT(&xferq->stfree); 461 STAILQ_INIT(&xferq->stdma); 462 xferq->stproc = NULL; 463 for (i = 0; i < xferq->bnchunk; i ++) { 464 m = 465 #if defined(__DragonFly__) || __FreeBSD_version < 500000 466 m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 467 #else 468 m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 469 #endif 470 xferq->bulkxfer[i].mbuf = m; 471 if (m != NULL) { 472 m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 473 STAILQ_INSERT_TAIL(&xferq->stfree, 474 &xferq->bulkxfer[i], link); 475 } else 476 printf("fwip_as_input: m_getcl failed\n"); 477 } 478 479 fwip->fwb.start = INET_FIFO; 480 fwip->fwb.end = INET_FIFO + 16384; /* S3200 packet size */ 481 482 /* pre-allocate xfer */ 483 STAILQ_INIT(&fwip->fwb.xferlist); 484 for (i = 0; i < rx_queue_len; i ++) { 485 xfer = fw_xfer_alloc(M_FWIP); 486 if (xfer == NULL) 487 break; 488 m = m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 489 xfer->recv.payload = mtod(m, uint32_t *); 490 xfer->recv.pay_len = MCLBYTES; 491 xfer->hand = fwip_unicast_input; 492 xfer->fc = fc; 493 xfer->sc = (void *)fwip; 494 xfer->mbuf = m; 495 STAILQ_INSERT_TAIL(&fwip->fwb.xferlist, xfer, link); 496 } 497 fw_bindadd(fc, &fwip->fwb); 498 499 STAILQ_INIT(&fwip->xferlist); 500 for (i = 0; i < TX_MAX_QUEUE; i++) { 501 xfer = fw_xfer_alloc(M_FWIP); 502 if (xfer == NULL) 503 break; 504 xfer->send.spd = tx_speed; 505 xfer->fc = fwip->fd.fc; 506 xfer->sc = (void *)fwip; 507 xfer->hand = fwip_output_callback; 508 STAILQ_INSERT_TAIL(&fwip->xferlist, xfer, link); 509 } 510 } else 511 xferq = fc->ir[fwip->dma_ch]; 512 513 fwip->last_dest.hi = 0; 514 fwip->last_dest.lo = 0; 515 516 /* start dma */ 517 if ((xferq->flag & FWXFERQ_RUNNING) == 0) 518 fc->irx_enable(fc, fwip->dma_ch); 519 520 #if defined(__FreeBSD__) 521 ifp->if_drv_flags |= IFF_DRV_RUNNING; 522 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 523 #elif defined(__NetBSD__) 524 ifp->if_flags |= IFF_RUNNING; 525 ifp->if_flags &= ~IFF_OACTIVE; 526 #endif 527 528 #if 0 529 /* attempt to start output */ 530 fwip_start(ifp); 531 #endif 532 IF_INIT_RETURN(0); 533 } 534 535 static int 536 fwip_ioctl(struct ifnet *ifp, u_long cmd, void *data) 537 { 538 IF_IOCTL_START(fwip, fwip); 539 int s, error; 540 541 switch (cmd) { 542 case SIOCSIFFLAGS: 543 s = splfwnet(); 544 if (ifp->if_flags & IFF_UP) { 545 #if defined(__FreeBSD__) 546 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 547 #elif defined(__NetBSD__) 548 if (!(ifp->if_flags & IFF_RUNNING)) 549 #endif 550 FWIP_INIT(fwip); 551 } else { 552 #if defined(__FreeBSD__) 553 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 554 #elif defined(__NetBSD__) 555 if (ifp->if_flags & IFF_RUNNING) 556 #endif 557 FWIP_STOP(fwip); 558 } 559 splx(s); 560 break; 561 case SIOCADDMULTI: 562 case SIOCDELMULTI: 563 break; 564 case SIOCSIFCAP: 565 #ifdef DEVICE_POLLING 566 { 567 struct ifreq *ifr = (struct ifreq *) data; 568 struct firewire_comm *fc = fc = fwip->fd.fc; 569 570 if (ifr->ifr_reqcap & IFCAP_POLLING && 571 !(ifp->if_capenable & IFCAP_POLLING)) { 572 error = ether_poll_register(fwip_poll, ifp); 573 if (error) 574 return(error); 575 /* Disable interrupts */ 576 fc->set_intr(fc, 0); 577 ifp->if_capenable |= IFCAP_POLLING; 578 return (error); 579 580 } 581 if (!(ifr->ifr_reqcap & IFCAP_POLLING) && 582 ifp->if_capenable & IFCAP_POLLING) { 583 error = ether_poll_deregister(ifp); 584 /* Enable interrupts. */ 585 fc->set_intr(fc, 1); 586 ifp->if_capenable &= ~IFCAP_POLLING; 587 return (error); 588 } 589 } 590 #endif /* DEVICE_POLLING */ 591 break; 592 593 #if (defined(__FreeBSD__) && __FreeBSD_version >= 500000) || defined(__NetBSD__) 594 default: 595 #else 596 case SIOCSIFADDR: 597 case SIOCGIFADDR: 598 case SIOCSIFMTU: 599 #endif 600 s = splfwnet(); 601 error = FIREWIRE_IOCTL(ifp, cmd, data); 602 splx(s); 603 return (error); 604 #if defined(__DragonFly__) || \ 605 (defined(__FreeBSD__) && __FreeBSD_version < 500000) 606 default: 607 return (EINVAL); 608 #endif 609 } 610 611 return (0); 612 } 613 614 static void 615 fwip_post_busreset(void *arg) 616 { 617 struct fwip_softc *fwip = arg; 618 struct crom_src *src; 619 struct crom_chunk *root; 620 621 src = fwip->fd.fc->crom_src; 622 root = fwip->fd.fc->crom_root; 623 624 /* RFC2734 IPv4 over IEEE1394 */ 625 bzero(&fwip->unit4, sizeof(struct crom_chunk)); 626 crom_add_chunk(src, root, &fwip->unit4, CROM_UDIR); 627 crom_add_entry(&fwip->unit4, CSRKEY_SPEC, CSRVAL_IETF); 628 crom_add_simple_text(src, &fwip->unit4, &fwip->spec4, "IANA"); 629 crom_add_entry(&fwip->unit4, CSRKEY_VER, 1); 630 crom_add_simple_text(src, &fwip->unit4, &fwip->ver4, "IPv4"); 631 632 /* RFC3146 IPv6 over IEEE1394 */ 633 bzero(&fwip->unit6, sizeof(struct crom_chunk)); 634 crom_add_chunk(src, root, &fwip->unit6, CROM_UDIR); 635 crom_add_entry(&fwip->unit6, CSRKEY_SPEC, CSRVAL_IETF); 636 crom_add_simple_text(src, &fwip->unit6, &fwip->spec6, "IANA"); 637 crom_add_entry(&fwip->unit6, CSRKEY_VER, 2); 638 crom_add_simple_text(src, &fwip->unit6, &fwip->ver6, "IPv6"); 639 640 fwip->last_dest.hi = 0; 641 fwip->last_dest.lo = 0; 642 FIREWIRE_BUSRESET(fwip->fw_softc.fwip_ifp); 643 } 644 645 static void 646 fwip_output_callback(struct fw_xfer *xfer) 647 { 648 struct fwip_softc *fwip; 649 struct ifnet *ifp; 650 int s; 651 652 fwip = (struct fwip_softc *)xfer->sc; 653 ifp = fwip->fw_softc.fwip_ifp; 654 /* XXX error check */ 655 FWIPDEBUG(ifp, "resp = %d\n", xfer->resp); 656 if (xfer->resp != 0) 657 ifp->if_oerrors ++; 658 659 m_freem(xfer->mbuf); 660 fw_xfer_unload(xfer); 661 662 s = splfwnet(); 663 FWIP_LOCK(fwip); 664 STAILQ_INSERT_TAIL(&fwip->xferlist, xfer, link); 665 FWIP_UNLOCK(fwip); 666 splx(s); 667 668 /* for queue full */ 669 if (ifp->if_snd.ifq_head != NULL) { 670 fwip_start(ifp); 671 } 672 } 673 674 static void 675 fwip_start(struct ifnet *ifp) 676 { 677 struct fwip_softc *fwip = 678 ((struct fwip_eth_softc *)ifp->if_softc)->fwip; 679 int s; 680 681 FWIPDEBUG(ifp, "starting\n"); 682 683 if (fwip->dma_ch < 0) { 684 struct mbuf *m = NULL; 685 686 FWIPDEBUG(ifp, "not ready\n"); 687 688 s = splfwnet(); 689 do { 690 IF_DEQUEUE(&ifp->if_snd, m); 691 if (m != NULL) 692 m_freem(m); 693 ifp->if_oerrors ++; 694 } while (m != NULL); 695 splx(s); 696 697 return; 698 } 699 700 s = splfwnet(); 701 #if defined(__FreeBSD__) 702 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 703 #elif defined(__NetBSD__) 704 ifp->if_flags |= IFF_OACTIVE; 705 #endif 706 707 if (ifp->if_snd.ifq_len != 0) 708 fwip_async_output(fwip, ifp); 709 710 #if defined(__FreeBSD__) 711 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 712 #elif defined(__NetBSD__) 713 ifp->if_flags &= ~IFF_OACTIVE; 714 #endif 715 splx(s); 716 } 717 718 /* Async. stream output */ 719 static void 720 fwip_async_output(struct fwip_softc *fwip, struct ifnet *ifp) 721 { 722 struct firewire_comm *fc = fwip->fd.fc; 723 struct mbuf *m; 724 struct m_tag *mtag; 725 struct fw_hwaddr *destfw; 726 struct fw_xfer *xfer; 727 struct fw_xferq *xferq; 728 struct fw_pkt *fp; 729 uint16_t nodeid; 730 int error; 731 int i = 0; 732 733 xfer = NULL; 734 xferq = fc->atq; 735 while ((xferq->queued < xferq->maxq - 1) && 736 (ifp->if_snd.ifq_head != NULL)) { 737 FWIP_LOCK(fwip); 738 xfer = STAILQ_FIRST(&fwip->xferlist); 739 if (xfer == NULL) { 740 FWIP_UNLOCK(fwip); 741 #if 0 742 printf("if_fwip: lack of xfer\n"); 743 #endif 744 break; 745 } 746 STAILQ_REMOVE_HEAD(&fwip->xferlist, link); 747 FWIP_UNLOCK(fwip); 748 749 IF_DEQUEUE(&ifp->if_snd, m); 750 if (m == NULL) { 751 FWIP_LOCK(fwip); 752 STAILQ_INSERT_HEAD(&fwip->xferlist, xfer, link); 753 FWIP_UNLOCK(fwip); 754 break; 755 } 756 757 /* 758 * Dig out the link-level address which 759 * firewire_output got via arp or neighbour 760 * discovery. If we don't have a link-level address, 761 * just stick the thing on the broadcast channel. 762 */ 763 mtag = m_tag_locate(m, MTAG_FIREWIRE, MTAG_FIREWIRE_HWADDR, 0); 764 if (mtag == NULL) 765 destfw = 0; 766 else 767 destfw = (struct fw_hwaddr *) (mtag + 1); 768 769 /* 770 * We don't do any bpf stuff here - the generic code 771 * in firewire_output gives the packet to bpf before 772 * it adds the link-level encapsulation. 773 */ 774 775 /* 776 * Put the mbuf in the xfer early in case we hit an 777 * error case below - fwip_output_callback will free 778 * the mbuf. 779 */ 780 xfer->mbuf = m; 781 782 /* 783 * We use the arp result (if any) to add a suitable firewire 784 * packet header before handing off to the bus. 785 */ 786 fp = &xfer->send.hdr; 787 nodeid = FWLOCALBUS | fc->nodeid; 788 if ((m->m_flags & M_BCAST) || !destfw) { 789 /* 790 * Broadcast packets are sent as GASP packets with 791 * specifier ID 0x00005e, version 1 on the broadcast 792 * channel. To be conservative, we send at the 793 * slowest possible speed. 794 */ 795 uint32_t *p; 796 797 M_PREPEND(m, 2*sizeof(uint32_t), M_DONTWAIT); 798 p = mtod(m, uint32_t *); 799 fp->mode.stream.len = m->m_pkthdr.len; 800 fp->mode.stream.chtag = broadcast_channel; 801 fp->mode.stream.tcode = FWTCODE_STREAM; 802 fp->mode.stream.sy = 0; 803 xfer->send.spd = 0; 804 p[0] = htonl(nodeid << 16); 805 p[1] = htonl((0x5e << 24) | 1); 806 } else { 807 /* 808 * Unicast packets are sent as block writes to the 809 * target's unicast fifo address. If we can't 810 * find the node address, we just give up. We 811 * could broadcast it but that might overflow 812 * the packet size limitations due to the 813 * extra GASP header. Note: the hardware 814 * address is stored in network byte order to 815 * make life easier for ARP. 816 */ 817 struct fw_device *fd; 818 struct fw_eui64 eui; 819 820 eui.hi = ntohl(destfw->sender_unique_ID_hi); 821 eui.lo = ntohl(destfw->sender_unique_ID_lo); 822 if (fwip->last_dest.hi != eui.hi || 823 fwip->last_dest.lo != eui.lo) { 824 fd = fw_noderesolve_eui64(fc, &eui); 825 if (!fd) { 826 /* error */ 827 ifp->if_oerrors ++; 828 /* XXX set error code */ 829 fwip_output_callback(xfer); 830 continue; 831 832 } 833 fwip->last_hdr.mode.wreqb.dst = FWLOCALBUS | fd->dst; 834 fwip->last_hdr.mode.wreqb.tlrt = 0; 835 fwip->last_hdr.mode.wreqb.tcode = FWTCODE_WREQB; 836 fwip->last_hdr.mode.wreqb.pri = 0; 837 fwip->last_hdr.mode.wreqb.src = nodeid; 838 fwip->last_hdr.mode.wreqb.dest_hi = 839 ntohs(destfw->sender_unicast_FIFO_hi); 840 fwip->last_hdr.mode.wreqb.dest_lo = 841 ntohl(destfw->sender_unicast_FIFO_lo); 842 fwip->last_hdr.mode.wreqb.extcode = 0; 843 fwip->last_dest = eui; 844 } 845 846 fp->mode.wreqb = fwip->last_hdr.mode.wreqb; 847 fp->mode.wreqb.len = m->m_pkthdr.len; 848 xfer->send.spd = min(destfw->sspd, fc->speed); 849 } 850 851 xfer->send.pay_len = m->m_pkthdr.len; 852 853 error = fw_asyreq(fc, -1, xfer); 854 if (error == EAGAIN) { 855 /* 856 * We ran out of tlabels - requeue the packet 857 * for later transmission. 858 */ 859 xfer->mbuf = 0; 860 FWIP_LOCK(fwip); 861 STAILQ_INSERT_TAIL(&fwip->xferlist, xfer, link); 862 FWIP_UNLOCK(fwip); 863 IF_PREPEND(&ifp->if_snd, m); 864 break; 865 } 866 if (error) { 867 /* error */ 868 ifp->if_oerrors ++; 869 /* XXX set error code */ 870 fwip_output_callback(xfer); 871 continue; 872 } else { 873 ifp->if_opackets ++; 874 i++; 875 } 876 } 877 #if 0 878 if (i > 1) 879 printf("%d queued\n", i); 880 #endif 881 if (i > 0) 882 xferq->start(fc); 883 } 884 885 static void 886 fwip_start_send (void *arg, int count) 887 { 888 struct fwip_softc *fwip = arg; 889 890 fwip->fd.fc->atq->start(fwip->fd.fc); 891 } 892 893 /* Async. stream output */ 894 static void 895 fwip_stream_input(struct fw_xferq *xferq) 896 { 897 struct mbuf *m, *m0; 898 struct m_tag *mtag; 899 struct ifnet *ifp; 900 struct fwip_softc *fwip; 901 struct fw_bulkxfer *sxfer; 902 struct fw_pkt *fp; 903 uint16_t src; 904 uint32_t *p; 905 906 fwip = (struct fwip_softc *)xferq->sc; 907 ifp = fwip->fw_softc.fwip_ifp; 908 while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 909 STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 910 fp = mtod(sxfer->mbuf, struct fw_pkt *); 911 if (fwip->fd.fc->irx_post != NULL) 912 fwip->fd.fc->irx_post(fwip->fd.fc, fp->mode.ld); 913 m = sxfer->mbuf; 914 915 /* insert new rbuf */ 916 sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 917 if (m0 != NULL) { 918 m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 919 STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 920 } else 921 printf("fwip_as_input: m_getcl failed\n"); 922 923 /* 924 * We must have a GASP header - leave the 925 * encapsulation sanity checks to the generic 926 * code. Remeber that we also have the firewire async 927 * stream header even though that isn't accounted for 928 * in mode.stream.len. 929 */ 930 if (sxfer->resp != 0 || fp->mode.stream.len < 931 2*sizeof(uint32_t)) { 932 m_freem(m); 933 ifp->if_ierrors ++; 934 continue; 935 } 936 m->m_len = m->m_pkthdr.len = fp->mode.stream.len 937 + sizeof(fp->mode.stream); 938 939 /* 940 * If we received the packet on the broadcast channel, 941 * mark it as broadcast, otherwise we assume it must 942 * be multicast. 943 */ 944 if (fp->mode.stream.chtag == broadcast_channel) 945 m->m_flags |= M_BCAST; 946 else 947 m->m_flags |= M_MCAST; 948 949 /* 950 * Make sure we recognise the GASP specifier and 951 * version. 952 */ 953 p = mtod(m, uint32_t *); 954 if ((((ntohl(p[1]) & 0xffff) << 8) | ntohl(p[2]) >> 24) != 0x00005e 955 || (ntohl(p[2]) & 0xffffff) != 1) { 956 FWIPDEBUG(ifp, "Unrecognised GASP header %#08x %#08x\n", 957 ntohl(p[1]), ntohl(p[2])); 958 m_freem(m); 959 ifp->if_ierrors ++; 960 continue; 961 } 962 963 /* 964 * Record the sender ID for possible BPF usage. 965 */ 966 src = ntohl(p[1]) >> 16; 967 if (bpf_peers_present(ifp->if_bpf)) { 968 mtag = m_tag_alloc(MTAG_FIREWIRE, 969 MTAG_FIREWIRE_SENDER_EUID, 970 2*sizeof(uint32_t), M_NOWAIT); 971 if (mtag) { 972 /* bpf wants it in network byte order */ 973 struct fw_device *fd; 974 uint32_t *p2 = (uint32_t *) (mtag + 1); 975 fd = fw_noderesolve_nodeid(fwip->fd.fc, 976 src & 0x3f); 977 if (fd) { 978 p2[0] = htonl(fd->eui.hi); 979 p2[1] = htonl(fd->eui.lo); 980 } else { 981 p2[0] = 0; 982 p2[1] = 0; 983 } 984 m_tag_prepend(m, mtag); 985 } 986 } 987 988 /* 989 * Trim off the GASP header 990 */ 991 m_adj(m, 3*sizeof(uint32_t)); 992 m->m_pkthdr.rcvif = ifp; 993 FIREWIRE_INPUT(ifp, m, src); 994 ifp->if_ipackets ++; 995 } 996 if (STAILQ_FIRST(&xferq->stfree) != NULL) 997 fwip->fd.fc->irx_enable(fwip->fd.fc, fwip->dma_ch); 998 } 999 1000 static inline void 1001 fwip_unicast_input_recycle(struct fwip_softc *fwip, struct fw_xfer *xfer) 1002 { 1003 struct mbuf *m; 1004 1005 /* 1006 * We have finished with a unicast xfer. Allocate a new 1007 * cluster and stick it on the back of the input queue. 1008 */ 1009 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 1010 if (m == NULL) 1011 printf("fwip_unicast_input_recycle: m_getcl failed\n"); 1012 xfer->mbuf = m; 1013 xfer->recv.payload = mtod(m, uint32_t *); 1014 xfer->recv.pay_len = MCLBYTES; 1015 xfer->mbuf = m; 1016 STAILQ_INSERT_TAIL(&fwip->fwb.xferlist, xfer, link); 1017 } 1018 1019 static void 1020 fwip_unicast_input(struct fw_xfer *xfer) 1021 { 1022 uint64_t address; 1023 struct mbuf *m; 1024 struct m_tag *mtag; 1025 struct ifnet *ifp; 1026 struct fwip_softc *fwip; 1027 struct fw_pkt *fp; 1028 //struct fw_pkt *sfp; 1029 int rtcode; 1030 1031 fwip = (struct fwip_softc *)xfer->sc; 1032 ifp = fwip->fw_softc.fwip_ifp; 1033 m = xfer->mbuf; 1034 xfer->mbuf = 0; 1035 fp = &xfer->recv.hdr; 1036 1037 /* 1038 * Check the fifo address - we only accept addresses of 1039 * exactly INET_FIFO. 1040 */ 1041 address = ((uint64_t)fp->mode.wreqb.dest_hi << 32) 1042 | fp->mode.wreqb.dest_lo; 1043 if (fp->mode.wreqb.tcode != FWTCODE_WREQB) { 1044 rtcode = FWRCODE_ER_TYPE; 1045 } else if (address != INET_FIFO) { 1046 rtcode = FWRCODE_ER_ADDR; 1047 } else { 1048 rtcode = FWRCODE_COMPLETE; 1049 } 1050 1051 /* 1052 * Pick up a new mbuf and stick it on the back of the receive 1053 * queue. 1054 */ 1055 fwip_unicast_input_recycle(fwip, xfer); 1056 1057 /* 1058 * If we've already rejected the packet, give up now. 1059 */ 1060 if (rtcode != FWRCODE_COMPLETE) { 1061 m_freem(m); 1062 ifp->if_ierrors ++; 1063 return; 1064 } 1065 1066 if (bpf_peers_present(ifp->if_bpf)) { 1067 /* 1068 * Record the sender ID for possible BPF usage. 1069 */ 1070 mtag = m_tag_alloc(MTAG_FIREWIRE, MTAG_FIREWIRE_SENDER_EUID, 1071 2*sizeof(uint32_t), M_NOWAIT); 1072 if (mtag) { 1073 /* bpf wants it in network byte order */ 1074 struct fw_device *fd; 1075 uint32_t *p = (uint32_t *) (mtag + 1); 1076 fd = fw_noderesolve_nodeid(fwip->fd.fc, 1077 fp->mode.wreqb.src & 0x3f); 1078 if (fd) { 1079 p[0] = htonl(fd->eui.hi); 1080 p[1] = htonl(fd->eui.lo); 1081 } else { 1082 p[0] = 0; 1083 p[1] = 0; 1084 } 1085 m_tag_prepend(m, mtag); 1086 } 1087 } 1088 1089 /* 1090 * Hand off to the generic encapsulation code. We don't use 1091 * ifp->if_input so that we can pass the source nodeid as an 1092 * argument to facilitate link-level fragment reassembly. 1093 */ 1094 m->m_len = m->m_pkthdr.len = fp->mode.wreqb.len; 1095 m->m_pkthdr.rcvif = ifp; 1096 FIREWIRE_INPUT(ifp, m, fp->mode.wreqb.src); 1097 ifp->if_ipackets ++; 1098 } 1099 1100 #if defined(__FreeBSD__) 1101 static devclass_t fwip_devclass; 1102 1103 static device_method_t fwip_methods[] = { 1104 /* device interface */ 1105 DEVMETHOD(device_identify, fwip_identify), 1106 DEVMETHOD(device_probe, fwip_probe), 1107 DEVMETHOD(device_attach, fwip_attach), 1108 DEVMETHOD(device_detach, fwip_detach), 1109 { 0, 0 } 1110 }; 1111 1112 static driver_t fwip_driver = { 1113 "fwip", 1114 fwip_methods, 1115 sizeof(struct fwip_softc), 1116 }; 1117 1118 1119 #ifdef __DragonFly__ 1120 DECLARE_DUMMY_MODULE(fwip); 1121 #endif 1122 DRIVER_MODULE(fwip, firewire, fwip_driver, fwip_devclass, 0, 0); 1123 MODULE_VERSION(fwip, 1); 1124 MODULE_DEPEND(fwip, firewire, 1, 1, 1); 1125 #elif defined(__NetBSD__) 1126 CFATTACH_DECL(fwip, sizeof (struct fwip_softc), 1127 fwipmatch, fwipattach, fwipdetach, NULL); 1128 #endif 1129
Indexes created Tue Sep 23 23:09:58 GMT 2025