if_fwip.c revision 1.21
1 /* $NetBSD: if_fwip.c,v 1.21 2010/03/11 04:00:37 mrg 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 #include <sys/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: if_fwip.c,v 1.21 2010/03/11 04:00:37 mrg Exp $"); 42 43 #ifdef HAVE_KERNEL_OPTION_HEADERS 44 #include "opt_device_polling.h" 45 #include "opt_inet.h" 46 #endif 47 48 #if defined(__FreeBSD__) 49 #include <sys/param.h> 50 #include <sys/kernel.h> 51 #include <sys/malloc.h> 52 #include <sys/mbuf.h> 53 #include <sys/socket.h> 54 #include <sys/sockio.h> 55 #include <sys/sysctl.h> 56 #include <sys/systm.h> 57 #include <sys/taskqueue.h> 58 #include <sys/module.h> 59 #include <sys/bus.h> 60 #include <sys/bus.h> 61 62 #include <net/bpf.h> 63 #include <net/if.h> 64 #include <net/firewire.h> 65 #include <net/if_arp.h> 66 #include <net/if_types.h> 67 #ifdef __DragonFly__ 68 #include <bus/firewire/fw_port.h> 69 #include <bus/firewire/firewire.h> 70 #include <bus/firewire/firewirereg.h> 71 #include "if_fwipvar.h" 72 #else 73 #include <dev/firewire/fw_port.h> 74 #include <dev/firewire/firewire.h> 75 #include <dev/firewire/firewirereg.h> 76 #include <dev/firewire/iec13213.h> 77 #include <dev/firewire/if_fwipvar.h> 78 #endif 79 #elif defined(__NetBSD__) 80 #include <sys/param.h> 81 #include <sys/device.h> 82 #include <sys/errno.h> 83 #include <sys/malloc.h> 84 #include <sys/mbuf.h> 85 #include <sys/sysctl.h> 86 87 #include <sys/bus.h> 88 89 #include <net/if.h> 90 #include <net/if_ieee1394.h> 91 #include <net/if_types.h> 92 93 #include <dev/ieee1394/fw_port.h> 94 #include <dev/ieee1394/firewire.h> 95 #include <dev/ieee1394/firewirereg.h> 96 #include <dev/ieee1394/iec13213.h> 97 #include <dev/ieee1394/if_fwipvar.h> 98 #endif 99 100 /* 101 * We really need a mechanism for allocating regions in the FIFO 102 * address space. We pick a address in the OHCI controller's 'middle' 103 * address space. This means that the controller will automatically 104 * send responses for us, which is fine since we don't have any 105 * important information to put in the response anyway. 106 */ 107 #define INET_FIFO 0xfffe00000000LL 108 109 #if defined(__FreeBSD__) 110 #define FWIPDEBUG if (fwipdebug) if_printf 111 #elif defined(__NetBSD__) 112 #define FWIPDEBUG if (fwipdebug) aprint_debug_ifnet 113 #endif 114 #define TX_MAX_QUEUE (FWMAXQUEUE - 1) 115 116 #if defined(__NetBSD__) 117 int fwipmatch (device_t, cfdata_t, void *); 118 void fwipattach (device_t, device_t, void *); 119 int fwipdetach (device_t, int); 120 int fwipactivate (device_t, enum devact); 121 122 #endif 123 /* network interface */ 124 static void fwip_start (struct ifnet *); 125 static int fwip_ioctl (struct ifnet *, u_long, void *); 126 #if defined(__FreeBSD__) 127 static void fwip_init(void *); 128 static void fwip_stop(struct fwip_softc *); 129 #elif defined(__NetBSD__) 130 static int fwip_init(struct ifnet *); 131 static void fwip_stop(struct ifnet *, int); 132 #endif 133 134 static void fwip_post_busreset (void *); 135 static void fwip_output_callback (struct fw_xfer *); 136 static void fwip_async_output (struct fwip_softc *, struct ifnet *); 137 static void fwip_start_send (void *, int); 138 static void fwip_stream_input (struct fw_xferq *); 139 static void fwip_unicast_input(struct fw_xfer *); 140 141 static int fwipdebug = 0; 142 static int broadcast_channel = 0xc0 | 0x1f; /* tag | channel(XXX) */ 143 static int tx_speed = 2; 144 static int rx_queue_len = FWMAXQUEUE; 145 146 #if defined(__FreeBSD__) 147 MALLOC_DEFINE(M_FWIP, "if_fwip", "IP over FireWire interface"); 148 SYSCTL_INT(_debug, OID_AUTO, if_fwip_debug, CTLFLAG_RW, &fwipdebug, 0, ""); 149 SYSCTL_DECL(_hw_firewire); 150 SYSCTL_NODE(_hw_firewire, OID_AUTO, fwip, CTLFLAG_RD, 0, 151 "Firewire ip subsystem"); 152 SYSCTL_INT(_hw_firewire_fwip, OID_AUTO, rx_queue_len, CTLFLAG_RW, &rx_queue_len, 153 0, "Length of the receive queue"); 154 155 TUNABLE_INT("hw.firewire.fwip.rx_queue_len", &rx_queue_len); 156 #elif defined(__NetBSD__) 157 MALLOC_DEFINE(M_FWIP, "if_fwip", "IP over IEEE1394 interface"); 158 /* 159 * Setup sysctl(3) MIB, hw.fwip.* 160 * 161 * TBD condition CTLFLAG_PERMANENT on being a module or not 162 */ 163 SYSCTL_SETUP(sysctl_fwip, "sysctl fwip(4) subtree setup") 164 { 165 int rc, fwip_node_num; 166 const struct sysctlnode *node; 167 168 if ((rc = sysctl_createv(clog, 0, NULL, NULL, 169 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 170 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) { 171 goto err; 172 } 173 174 if ((rc = sysctl_createv(clog, 0, NULL, &node, 175 CTLFLAG_PERMANENT, CTLTYPE_NODE, "fwip", 176 SYSCTL_DESCR("fwip controls"), 177 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) { 178 goto err; 179 } 180 fwip_node_num = node->sysctl_num; 181 182 /* fwip RX queue length */ 183 if ((rc = sysctl_createv(clog, 0, NULL, &node, 184 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 185 "rx_queue_len", SYSCTL_DESCR("Length of the receive queue"), 186 NULL, 0, &rx_queue_len, 187 0, CTL_HW, fwip_node_num, CTL_CREATE, CTL_EOL)) != 0) { 188 goto err; 189 } 190 191 /* fwip RX queue length */ 192 if ((rc = sysctl_createv(clog, 0, NULL, &node, 193 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 194 "if_fwip_debug", SYSCTL_DESCR("fwip driver debug flag"), 195 NULL, 0, &fwipdebug, 196 0, CTL_HW, fwip_node_num, CTL_CREATE, CTL_EOL)) != 0) { 197 goto err; 198 } 199 200 return; 201 202 err: 203 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 204 } 205 #endif 206 207 #ifdef DEVICE_POLLING 208 static poll_handler_t fwip_poll; 209 210 static void 211 fwip_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 212 { 213 struct fwip_softc *fwip; 214 struct firewire_comm *fc; 215 216 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 217 return; 218 219 fwip = ((struct fwip_eth_softc *)ifp->if_softc)->fwip; 220 fc = fwip->fd.fc; 221 fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count); 222 } 223 #endif /* DEVICE_POLLING */ 224 #if defined(__FreeBSD__) 225 static void 226 fwip_identify(driver_t *driver, device_t parent) 227 { 228 BUS_ADD_CHILD(parent, 0, "fwip", fw_get_unit(parent)); 229 } 230 231 static int 232 fwip_probe(device_t dev) 233 { 234 device_t pa; 235 236 pa = device_get_parent(dev); 237 if(fw_get_unit(dev) != fw_get_unit(pa)){ 238 return(ENXIO); 239 } 240 241 device_set_desc(dev, "IP over FireWire"); 242 return (0); 243 } 244 #elif defined(__NetBSD__) 245 int 246 fwipmatch(device_t parent, cfdata_t cf, void *aux) 247 { 248 struct fw_attach_args *fwa = aux; 249 250 if (strcmp(fwa->name, "fwip") == 0) 251 return (1); 252 return (0); 253 } 254 #endif 255 256 FW_ATTACH(fwip) 257 { 258 FW_ATTACH_START(fwip, fwip, fwa); 259 FWIP_ATTACH_START; 260 struct ifnet *ifp; 261 int s; 262 263 FWIP_ATTACH_SETUP; 264 265 ifp = fwip->fw_softc.fwip_ifp; 266 if (ifp == NULL) 267 FW_ATTACH_RETURN(ENOSPC); 268 269 #ifdef __NetBSD__ 270 aprint_naive("\n"); 271 #endif 272 273 fw_mtx_init(&fwip->mtx, "fwip", NULL, MTX_DEF); 274 /* XXX */ 275 fwip->dma_ch = -1; 276 277 fwip->fd.fc = fwa->fc; 278 if (tx_speed < 0) 279 tx_speed = fwip->fd.fc->speed; 280 281 fwip->fd.post_explore = NULL; 282 fwip->fd.post_busreset = fwip_post_busreset; 283 fwip->fw_softc.fwip = fwip; 284 FW_TASK_INIT(&fwip->start_send, 0, fwip_start_send, fwip); 285 286 /* 287 * Encode our hardware the way that arp likes it. 288 */ 289 hwaddr->sender_unique_ID_hi = htonl(fwip->fd.fc->eui.hi); 290 hwaddr->sender_unique_ID_lo = htonl(fwip->fd.fc->eui.lo); 291 hwaddr->sender_max_rec = fwip->fd.fc->maxrec; 292 hwaddr->sspd = fwip->fd.fc->speed; 293 hwaddr->sender_unicast_FIFO_hi = htons((uint16_t)(INET_FIFO >> 32)); 294 hwaddr->sender_unicast_FIFO_lo = htonl((uint32_t)INET_FIFO); 295 296 /* fill the rest and attach interface */ 297 ifp->if_softc = &fwip->fw_softc; 298 299 #if __FreeBSD_version >= 501113 || defined(__DragonFly__) || defined(__NetBSD__) 300 IF_INITNAME(ifp, dev, unit); 301 #else 302 ifp->if_unit = unit; 303 ifp->if_name = "fwip"; 304 #endif 305 #if defined(__NetBSD__) 306 IFQ_SET_READY(&ifp->if_snd); 307 #endif 308 SET_IFFUNC(ifp, fwip_start, fwip_ioctl, fwip_init, fwip_stop); 309 ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST); 310 ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE; 311 #ifdef DEVICE_POLLING 312 ifp->if_capabilities |= IFCAP_POLLING; 313 #endif 314 315 s = splfwnet(); 316 FIREWIRE_IFATTACH(ifp, hwaddr); 317 splx(s); 318 319 #if defined(__NetBSD__) 320 if (!pmf_device_register(self, NULL, NULL)) 321 aprint_error_dev(self, "couldn't establish power handler\n"); 322 else 323 pmf_class_network_register(self, ifp); 324 #endif 325 326 FWIPDEBUG(ifp, "interface created\n"); 327 FW_ATTACH_RETURN(0); 328 } 329 330 IF_STOP(fwip) 331 { 332 IF_STOP_START(fwip, ifp, fwip); 333 struct firewire_comm *fc; 334 struct fw_xferq *xferq; 335 struct fw_xfer *xfer, *next; 336 int i; 337 338 fc = fwip->fd.fc; 339 340 if (fwip->dma_ch >= 0) { 341 xferq = fc->ir[fwip->dma_ch]; 342 343 if (xferq->flag & FWXFERQ_RUNNING) 344 fc->irx_disable(fc, fwip->dma_ch); 345 xferq->flag &= 346 ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 347 FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 348 xferq->hand = NULL; 349 350 for (i = 0; i < xferq->bnchunk; i ++) 351 m_freem(xferq->bulkxfer[i].mbuf); 352 free(xferq->bulkxfer, M_FWIP); 353 354 fw_bindremove(fc, &fwip->fwb); 355 for (xfer = STAILQ_FIRST(&fwip->fwb.xferlist); xfer != NULL; 356 xfer = next) { 357 next = STAILQ_NEXT(xfer, link); 358 fw_xfer_free(xfer); 359 } 360 361 for (xfer = STAILQ_FIRST(&fwip->xferlist); xfer != NULL; 362 xfer = next) { 363 next = STAILQ_NEXT(xfer, link); 364 fw_xfer_free(xfer); 365 } 366 STAILQ_INIT(&fwip->xferlist); 367 368 xferq->bulkxfer = NULL; 369 fwip->dma_ch = -1; 370 } 371 372 #if defined(__FreeBSD__) 373 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 374 #elif defined(__NetBSD__) 375 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 376 #endif 377 } 378 379 FW_DETACH(fwip) 380 { 381 IF_DETACH_START(fwip, fwip); 382 struct ifnet *ifp; 383 int s; 384 385 ifp = fwip->fw_softc.fwip_ifp; 386 387 #ifdef DEVICE_POLLING 388 if (ifp->if_capenable & IFCAP_POLLING) 389 ether_poll_deregister(ifp); 390 #endif 391 392 s = splfwnet(); 393 394 FWIP_STOP(fwip); 395 FIREWIRE_IFDETACH(ifp); 396 fw_mtx_destroy(&fwip->mtx); 397 398 splx(s); 399 return 0; 400 } 401 402 int 403 fwipactivate(device_t self, enum devact act) 404 { 405 struct fwip_softc *fwip = device_private(self); 406 407 switch (act) { 408 case DVACT_DEACTIVATE: 409 if_deactivate(fwip->fw_softc.fwip_ifp); 410 return 0; 411 default: 412 return EOPNOTSUPP; 413 } 414 } 415 416 IF_INIT(fwip) 417 { 418 IF_INIT_START(fwip, fwip, ifp); 419 struct firewire_comm *fc; 420 struct fw_xferq *xferq; 421 struct fw_xfer *xfer; 422 struct mbuf *m; 423 int i; 424 425 FWIPDEBUG(ifp, "initializing\n"); 426 427 fc = fwip->fd.fc; 428 #define START 0 429 if (fwip->dma_ch < 0) { 430 fwip->dma_ch = fw_open_isodma(fc, /* tx */0); 431 if (fwip->dma_ch < 0) 432 IF_INIT_RETURN(ENXIO); 433 xferq = fc->ir[fwip->dma_ch]; 434 xferq->flag |= 435 FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_STREAM; 436 xferq->flag &= ~0xff; 437 xferq->flag |= broadcast_channel & 0xff; 438 /* register fwip_input handler */ 439 xferq->sc = (void *) fwip; 440 xferq->hand = fwip_stream_input; 441 xferq->bnchunk = rx_queue_len; 442 xferq->bnpacket = 1; 443 xferq->psize = MCLBYTES; 444 xferq->queued = 0; 445 xferq->buf = NULL; 446 xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 447 sizeof(struct fw_bulkxfer) * xferq->bnchunk, 448 M_FWIP, M_WAITOK); 449 if (xferq->bulkxfer == NULL) { 450 printf("if_fwip: malloc failed\n"); 451 IF_INIT_RETURN(ENOMEM); 452 } 453 STAILQ_INIT(&xferq->stvalid); 454 STAILQ_INIT(&xferq->stfree); 455 STAILQ_INIT(&xferq->stdma); 456 xferq->stproc = NULL; 457 for (i = 0; i < xferq->bnchunk; i ++) { 458 m = 459 #if defined(__DragonFly__) || __FreeBSD_version < 500000 460 m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 461 #else 462 m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 463 #endif 464 xferq->bulkxfer[i].mbuf = m; 465 if (m != NULL) { 466 m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 467 STAILQ_INSERT_TAIL(&xferq->stfree, 468 &xferq->bulkxfer[i], link); 469 } else 470 printf("fwip_as_input: m_getcl failed\n"); 471 } 472 473 fwip->fwb.start = INET_FIFO; 474 fwip->fwb.end = INET_FIFO + 16384; /* S3200 packet size */ 475 476 /* pre-allocate xfer */ 477 STAILQ_INIT(&fwip->fwb.xferlist); 478 for (i = 0; i < rx_queue_len; i ++) { 479 xfer = fw_xfer_alloc(M_FWIP); 480 if (xfer == NULL) 481 break; 482 m = m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 483 xfer->recv.payload = mtod(m, uint32_t *); 484 xfer->recv.pay_len = MCLBYTES; 485 xfer->hand = fwip_unicast_input; 486 xfer->fc = fc; 487 xfer->sc = (void *)fwip; 488 xfer->mbuf = m; 489 STAILQ_INSERT_TAIL(&fwip->fwb.xferlist, xfer, link); 490 } 491 fw_bindadd(fc, &fwip->fwb); 492 493 STAILQ_INIT(&fwip->xferlist); 494 for (i = 0; i < TX_MAX_QUEUE; i++) { 495 xfer = fw_xfer_alloc(M_FWIP); 496 if (xfer == NULL) 497 break; 498 xfer->send.spd = tx_speed; 499 xfer->fc = fwip->fd.fc; 500 xfer->sc = (void *)fwip; 501 xfer->hand = fwip_output_callback; 502 STAILQ_INSERT_TAIL(&fwip->xferlist, xfer, link); 503 } 504 } else 505 xferq = fc->ir[fwip->dma_ch]; 506 507 fwip->last_dest.hi = 0; 508 fwip->last_dest.lo = 0; 509 510 /* start dma */ 511 if ((xferq->flag & FWXFERQ_RUNNING) == 0) 512 fc->irx_enable(fc, fwip->dma_ch); 513 514 #if defined(__FreeBSD__) 515 ifp->if_drv_flags |= IFF_DRV_RUNNING; 516 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 517 #elif defined(__NetBSD__) 518 ifp->if_flags |= IFF_RUNNING; 519 ifp->if_flags &= ~IFF_OACTIVE; 520 #endif 521 522 #if 0 523 /* attempt to start output */ 524 fwip_start(ifp); 525 #endif 526 IF_INIT_RETURN(0); 527 } 528 529 static int 530 fwip_ioctl(struct ifnet *ifp, u_long cmd, void *data) 531 { 532 IF_IOCTL_START(fwip, fwip); 533 int s, error = 0; 534 535 switch (cmd) { 536 case SIOCSIFFLAGS: 537 s = splfwnet(); 538 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 539 ; 540 else if (ifp->if_flags & IFF_UP) { 541 if (!(ifp->if_flags & IFF_RUNNING)) 542 FWIP_INIT(fwip); 543 } else { 544 if (ifp->if_flags & IFF_RUNNING) 545 FWIP_STOP(fwip); 546 } 547 splx(s); 548 break; 549 case SIOCADDMULTI: 550 case SIOCDELMULTI: 551 break; 552 case SIOCSIFCAP: 553 if ((error = FIREWIRE_IOCTL(ifp, cmd, data)) != ENETRESET) 554 break; 555 error = 0; 556 #ifdef DEVICE_POLLING 557 { 558 struct ifreq *ifr = (struct ifreq *) data; 559 struct firewire_comm *fc = fc = fwip->fd.fc; 560 561 if (ifr->ifr_reqcap & IFCAP_POLLING && 562 !(ifp->if_capenable & IFCAP_POLLING)) { 563 error = ether_poll_register(fwip_poll, ifp); 564 if (error) 565 return(error); 566 /* Disable interrupts */ 567 fc->set_intr(fc, 0); 568 ifp->if_capenable |= IFCAP_POLLING; 569 return (error); 570 571 } 572 if (!(ifr->ifr_reqcap & IFCAP_POLLING) && 573 ifp->if_capenable & IFCAP_POLLING) { 574 error = ether_poll_deregister(ifp); 575 /* Enable interrupts. */ 576 fc->set_intr(fc, 1); 577 ifp->if_capenable &= ~IFCAP_POLLING; 578 return (error); 579 } 580 } 581 #endif /* DEVICE_POLLING */ 582 break; 583 584 default: 585 s = splfwnet(); 586 error = FIREWIRE_IOCTL(ifp, cmd, data); 587 splx(s); 588 return (error); 589 } 590 591 return error; 592 } 593 594 static void 595 fwip_post_busreset(void *arg) 596 { 597 struct fwip_softc *fwip = arg; 598 struct crom_src *src; 599 struct crom_chunk *root; 600 601 src = fwip->fd.fc->crom_src; 602 root = fwip->fd.fc->crom_root; 603 604 /* RFC2734 IPv4 over IEEE1394 */ 605 memset(&fwip->unit4, 0, sizeof(struct crom_chunk)); 606 crom_add_chunk(src, root, &fwip->unit4, CROM_UDIR); 607 crom_add_entry(&fwip->unit4, CSRKEY_SPEC, CSRVAL_IETF); 608 crom_add_simple_text(src, &fwip->unit4, &fwip->spec4, "IANA"); 609 crom_add_entry(&fwip->unit4, CSRKEY_VER, 1); 610 crom_add_simple_text(src, &fwip->unit4, &fwip->ver4, "IPv4"); 611 612 /* RFC3146 IPv6 over IEEE1394 */ 613 memset(&fwip->unit6, 0, sizeof(struct crom_chunk)); 614 crom_add_chunk(src, root, &fwip->unit6, CROM_UDIR); 615 crom_add_entry(&fwip->unit6, CSRKEY_SPEC, CSRVAL_IETF); 616 crom_add_simple_text(src, &fwip->unit6, &fwip->spec6, "IANA"); 617 crom_add_entry(&fwip->unit6, CSRKEY_VER, 2); 618 crom_add_simple_text(src, &fwip->unit6, &fwip->ver6, "IPv6"); 619 620 fwip->last_dest.hi = 0; 621 fwip->last_dest.lo = 0; 622 FIREWIRE_BUSRESET(fwip->fw_softc.fwip_ifp); 623 } 624 625 static void 626 fwip_output_callback(struct fw_xfer *xfer) 627 { 628 struct fwip_softc *fwip; 629 struct ifnet *ifp; 630 int s; 631 632 fwip = (struct fwip_softc *)xfer->sc; 633 ifp = fwip->fw_softc.fwip_ifp; 634 /* XXX error check */ 635 FWIPDEBUG(ifp, "resp = %d\n", xfer->resp); 636 if (xfer->resp != 0) 637 ifp->if_oerrors ++; 638 639 m_freem(xfer->mbuf); 640 fw_xfer_unload(xfer); 641 642 s = splfwnet(); 643 FWIP_LOCK(fwip); 644 STAILQ_INSERT_TAIL(&fwip->xferlist, xfer, link); 645 FWIP_UNLOCK(fwip); 646 splx(s); 647 648 /* for queue full */ 649 if (ifp->if_snd.ifq_head != NULL) { 650 fwip_start(ifp); 651 } 652 } 653 654 static void 655 fwip_start(struct ifnet *ifp) 656 { 657 struct fwip_softc *fwip = 658 ((struct fwip_eth_softc *)ifp->if_softc)->fwip; 659 int s; 660 661 FWIPDEBUG(ifp, "starting\n"); 662 663 if (fwip->dma_ch < 0) { 664 struct mbuf *m = NULL; 665 666 FWIPDEBUG(ifp, "not ready\n"); 667 668 s = splfwnet(); 669 do { 670 IF_DEQUEUE(&ifp->if_snd, m); 671 if (m != NULL) 672 m_freem(m); 673 ifp->if_oerrors ++; 674 } while (m != NULL); 675 splx(s); 676 677 return; 678 } 679 680 s = splfwnet(); 681 #if defined(__FreeBSD__) 682 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 683 #elif defined(__NetBSD__) 684 ifp->if_flags |= IFF_OACTIVE; 685 #endif 686 687 if (ifp->if_snd.ifq_len != 0) 688 fwip_async_output(fwip, ifp); 689 690 #if defined(__FreeBSD__) 691 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 692 #elif defined(__NetBSD__) 693 ifp->if_flags &= ~IFF_OACTIVE; 694 #endif 695 splx(s); 696 } 697 698 /* Async. stream output */ 699 static void 700 fwip_async_output(struct fwip_softc *fwip, struct ifnet *ifp) 701 { 702 struct firewire_comm *fc = fwip->fd.fc; 703 struct mbuf *m; 704 struct m_tag *mtag; 705 struct fw_hwaddr *destfw; 706 struct fw_xfer *xfer; 707 struct fw_xferq *xferq; 708 struct fw_pkt *fp; 709 uint16_t nodeid; 710 int error; 711 int i = 0; 712 713 xfer = NULL; 714 xferq = fc->atq; 715 while ((xferq->queued < xferq->maxq - 1) && 716 (ifp->if_snd.ifq_head != NULL)) { 717 FWIP_LOCK(fwip); 718 xfer = STAILQ_FIRST(&fwip->xferlist); 719 if (xfer == NULL) { 720 FWIP_UNLOCK(fwip); 721 #if 0 722 printf("if_fwip: lack of xfer\n"); 723 #endif 724 break; 725 } 726 STAILQ_REMOVE_HEAD(&fwip->xferlist, link); 727 FWIP_UNLOCK(fwip); 728 729 IF_DEQUEUE(&ifp->if_snd, m); 730 if (m == NULL) { 731 FWIP_LOCK(fwip); 732 STAILQ_INSERT_HEAD(&fwip->xferlist, xfer, link); 733 FWIP_UNLOCK(fwip); 734 break; 735 } 736 737 /* 738 * Dig out the link-level address which 739 * firewire_output got via arp or neighbour 740 * discovery. If we don't have a link-level address, 741 * just stick the thing on the broadcast channel. 742 */ 743 mtag = m_tag_locate(m, MTAG_FIREWIRE, MTAG_FIREWIRE_HWADDR, 0); 744 if (mtag == NULL) 745 destfw = 0; 746 else 747 destfw = (struct fw_hwaddr *) (mtag + 1); 748 749 /* 750 * We don't do any bpf stuff here - the generic code 751 * in firewire_output gives the packet to bpf before 752 * it adds the link-level encapsulation. 753 */ 754 755 /* 756 * Put the mbuf in the xfer early in case we hit an 757 * error case below - fwip_output_callback will free 758 * the mbuf. 759 */ 760 xfer->mbuf = m; 761 762 /* 763 * We use the arp result (if any) to add a suitable firewire 764 * packet header before handing off to the bus. 765 */ 766 fp = &xfer->send.hdr; 767 nodeid = FWLOCALBUS | fc->nodeid; 768 if ((m->m_flags & M_BCAST) || !destfw) { 769 /* 770 * Broadcast packets are sent as GASP packets with 771 * specifier ID 0x00005e, version 1 on the broadcast 772 * channel. To be conservative, we send at the 773 * slowest possible speed. 774 */ 775 uint32_t *p; 776 777 M_PREPEND(m, 2*sizeof(uint32_t), M_DONTWAIT); 778 p = mtod(m, uint32_t *); 779 fp->mode.stream.len = m->m_pkthdr.len; 780 fp->mode.stream.chtag = broadcast_channel; 781 fp->mode.stream.tcode = FWTCODE_STREAM; 782 fp->mode.stream.sy = 0; 783 xfer->send.spd = 0; 784 p[0] = htonl(nodeid << 16); 785 p[1] = htonl((0x5e << 24) | 1); 786 } else { 787 /* 788 * Unicast packets are sent as block writes to the 789 * target's unicast fifo address. If we can't 790 * find the node address, we just give up. We 791 * could broadcast it but that might overflow 792 * the packet size limitations due to the 793 * extra GASP header. Note: the hardware 794 * address is stored in network byte order to 795 * make life easier for ARP. 796 */ 797 struct fw_device *fd; 798 struct fw_eui64 eui; 799 800 eui.hi = ntohl(destfw->sender_unique_ID_hi); 801 eui.lo = ntohl(destfw->sender_unique_ID_lo); 802 if (fwip->last_dest.hi != eui.hi || 803 fwip->last_dest.lo != eui.lo) { 804 fd = fw_noderesolve_eui64(fc, &eui); 805 if (!fd) { 806 /* error */ 807 ifp->if_oerrors ++; 808 /* XXX set error code */ 809 fwip_output_callback(xfer); 810 continue; 811 812 } 813 fwip->last_hdr.mode.wreqb.dst = FWLOCALBUS | fd->dst; 814 fwip->last_hdr.mode.wreqb.tlrt = 0; 815 fwip->last_hdr.mode.wreqb.tcode = FWTCODE_WREQB; 816 fwip->last_hdr.mode.wreqb.pri = 0; 817 fwip->last_hdr.mode.wreqb.src = nodeid; 818 fwip->last_hdr.mode.wreqb.dest_hi = 819 ntohs(destfw->sender_unicast_FIFO_hi); 820 fwip->last_hdr.mode.wreqb.dest_lo = 821 ntohl(destfw->sender_unicast_FIFO_lo); 822 fwip->last_hdr.mode.wreqb.extcode = 0; 823 fwip->last_dest = eui; 824 } 825 826 fp->mode.wreqb = fwip->last_hdr.mode.wreqb; 827 fp->mode.wreqb.len = m->m_pkthdr.len; 828 xfer->send.spd = min(destfw->sspd, fc->speed); 829 } 830 831 xfer->send.pay_len = m->m_pkthdr.len; 832 833 error = fw_asyreq(fc, -1, xfer); 834 if (error == EAGAIN) { 835 /* 836 * We ran out of tlabels - requeue the packet 837 * for later transmission. 838 */ 839 xfer->mbuf = 0; 840 FWIP_LOCK(fwip); 841 STAILQ_INSERT_TAIL(&fwip->xferlist, xfer, link); 842 FWIP_UNLOCK(fwip); 843 IF_PREPEND(&ifp->if_snd, m); 844 break; 845 } 846 if (error) { 847 /* error */ 848 ifp->if_oerrors ++; 849 /* XXX set error code */ 850 fwip_output_callback(xfer); 851 continue; 852 } else { 853 ifp->if_opackets ++; 854 i++; 855 } 856 } 857 #if 0 858 if (i > 1) 859 printf("%d queued\n", i); 860 #endif 861 if (i > 0) 862 xferq->start(fc); 863 } 864 865 static void 866 fwip_start_send (void *arg, int count) 867 { 868 struct fwip_softc *fwip = arg; 869 870 fwip->fd.fc->atq->start(fwip->fd.fc); 871 } 872 873 /* Async. stream output */ 874 static void 875 fwip_stream_input(struct fw_xferq *xferq) 876 { 877 struct mbuf *m, *m0; 878 struct m_tag *mtag; 879 struct ifnet *ifp; 880 struct fwip_softc *fwip; 881 struct fw_bulkxfer *sxfer; 882 struct fw_pkt *fp; 883 uint16_t src; 884 uint32_t *p; 885 886 fwip = (struct fwip_softc *)xferq->sc; 887 ifp = fwip->fw_softc.fwip_ifp; 888 while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 889 STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 890 fp = mtod(sxfer->mbuf, struct fw_pkt *); 891 if (fwip->fd.fc->irx_post != NULL) 892 fwip->fd.fc->irx_post(fwip->fd.fc, fp->mode.ld); 893 m = sxfer->mbuf; 894 895 /* insert new rbuf */ 896 sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 897 if (m0 != NULL) { 898 m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 899 STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 900 } else 901 printf("fwip_as_input: m_getcl failed\n"); 902 903 /* 904 * We must have a GASP header - leave the 905 * encapsulation sanity checks to the generic 906 * code. Remeber that we also have the firewire async 907 * stream header even though that isn't accounted for 908 * in mode.stream.len. 909 */ 910 if (sxfer->resp != 0 || fp->mode.stream.len < 911 2*sizeof(uint32_t)) { 912 m_freem(m); 913 ifp->if_ierrors ++; 914 continue; 915 } 916 m->m_len = m->m_pkthdr.len = fp->mode.stream.len 917 + sizeof(fp->mode.stream); 918 919 /* 920 * If we received the packet on the broadcast channel, 921 * mark it as broadcast, otherwise we assume it must 922 * be multicast. 923 */ 924 if (fp->mode.stream.chtag == broadcast_channel) 925 m->m_flags |= M_BCAST; 926 else 927 m->m_flags |= M_MCAST; 928 929 /* 930 * Make sure we recognise the GASP specifier and 931 * version. 932 */ 933 p = mtod(m, uint32_t *); 934 if ((((ntohl(p[1]) & 0xffff) << 8) | ntohl(p[2]) >> 24) != 0x00005e 935 || (ntohl(p[2]) & 0xffffff) != 1) { 936 FWIPDEBUG(ifp, "Unrecognised GASP header %#08x %#08x\n", 937 ntohl(p[1]), ntohl(p[2])); 938 m_freem(m); 939 ifp->if_ierrors ++; 940 continue; 941 } 942 943 /* 944 * Record the sender ID for possible BPF usage. 945 */ 946 src = ntohl(p[1]) >> 16; 947 if (bpf_peers_present(ifp->if_bpf)) { 948 mtag = m_tag_alloc(MTAG_FIREWIRE, 949 MTAG_FIREWIRE_SENDER_EUID, 950 2*sizeof(uint32_t), M_NOWAIT); 951 if (mtag) { 952 /* bpf wants it in network byte order */ 953 struct fw_device *fd; 954 uint32_t *p2 = (uint32_t *) (mtag + 1); 955 fd = fw_noderesolve_nodeid(fwip->fd.fc, 956 src & 0x3f); 957 if (fd) { 958 p2[0] = htonl(fd->eui.hi); 959 p2[1] = htonl(fd->eui.lo); 960 } else { 961 p2[0] = 0; 962 p2[1] = 0; 963 } 964 m_tag_prepend(m, mtag); 965 } 966 } 967 968 /* 969 * Trim off the GASP header 970 */ 971 m_adj(m, 3*sizeof(uint32_t)); 972 m->m_pkthdr.rcvif = ifp; 973 FIREWIRE_INPUT(ifp, m, src); 974 ifp->if_ipackets ++; 975 } 976 if (STAILQ_FIRST(&xferq->stfree) != NULL) 977 fwip->fd.fc->irx_enable(fwip->fd.fc, fwip->dma_ch); 978 } 979 980 static inline void 981 fwip_unicast_input_recycle(struct fwip_softc *fwip, struct fw_xfer *xfer) 982 { 983 struct mbuf *m; 984 985 /* 986 * We have finished with a unicast xfer. Allocate a new 987 * cluster and stick it on the back of the input queue. 988 */ 989 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 990 if (m == NULL) 991 printf("fwip_unicast_input_recycle: m_getcl failed\n"); 992 xfer->mbuf = m; 993 xfer->recv.payload = mtod(m, uint32_t *); 994 xfer->recv.pay_len = MCLBYTES; 995 xfer->mbuf = m; 996 STAILQ_INSERT_TAIL(&fwip->fwb.xferlist, xfer, link); 997 } 998 999 static void 1000 fwip_unicast_input(struct fw_xfer *xfer) 1001 { 1002 uint64_t address; 1003 struct mbuf *m; 1004 struct m_tag *mtag; 1005 struct ifnet *ifp; 1006 struct fwip_softc *fwip; 1007 struct fw_pkt *fp; 1008 //struct fw_pkt *sfp; 1009 int rtcode; 1010 1011 fwip = (struct fwip_softc *)xfer->sc; 1012 ifp = fwip->fw_softc.fwip_ifp; 1013 m = xfer->mbuf; 1014 xfer->mbuf = 0; 1015 fp = &xfer->recv.hdr; 1016 1017 /* 1018 * Check the fifo address - we only accept addresses of 1019 * exactly INET_FIFO. 1020 */ 1021 address = ((uint64_t)fp->mode.wreqb.dest_hi << 32) 1022 | fp->mode.wreqb.dest_lo; 1023 if (fp->mode.wreqb.tcode != FWTCODE_WREQB) { 1024 rtcode = FWRCODE_ER_TYPE; 1025 } else if (address != INET_FIFO) { 1026 rtcode = FWRCODE_ER_ADDR; 1027 } else { 1028 rtcode = FWRCODE_COMPLETE; 1029 } 1030 1031 /* 1032 * Pick up a new mbuf and stick it on the back of the receive 1033 * queue. 1034 */ 1035 fwip_unicast_input_recycle(fwip, xfer); 1036 1037 /* 1038 * If we've already rejected the packet, give up now. 1039 */ 1040 if (rtcode != FWRCODE_COMPLETE) { 1041 m_freem(m); 1042 ifp->if_ierrors ++; 1043 return; 1044 } 1045 1046 if (bpf_peers_present(ifp->if_bpf)) { 1047 /* 1048 * Record the sender ID for possible BPF usage. 1049 */ 1050 mtag = m_tag_alloc(MTAG_FIREWIRE, MTAG_FIREWIRE_SENDER_EUID, 1051 2*sizeof(uint32_t), M_NOWAIT); 1052 if (mtag) { 1053 /* bpf wants it in network byte order */ 1054 struct fw_device *fd; 1055 uint32_t *p = (uint32_t *) (mtag + 1); 1056 fd = fw_noderesolve_nodeid(fwip->fd.fc, 1057 fp->mode.wreqb.src & 0x3f); 1058 if (fd) { 1059 p[0] = htonl(fd->eui.hi); 1060 p[1] = htonl(fd->eui.lo); 1061 } else { 1062 p[0] = 0; 1063 p[1] = 0; 1064 } 1065 m_tag_prepend(m, mtag); 1066 } 1067 } 1068 1069 /* 1070 * Hand off to the generic encapsulation code. We don't use 1071 * ifp->if_input so that we can pass the source nodeid as an 1072 * argument to facilitate link-level fragment reassembly. 1073 */ 1074 m->m_len = m->m_pkthdr.len = fp->mode.wreqb.len; 1075 m->m_pkthdr.rcvif = ifp; 1076 FIREWIRE_INPUT(ifp, m, fp->mode.wreqb.src); 1077 ifp->if_ipackets ++; 1078 } 1079 1080 #if defined(__FreeBSD__) 1081 static devclass_t fwip_devclass; 1082 1083 static device_method_t fwip_methods[] = { 1084 /* device interface */ 1085 DEVMETHOD(device_identify, fwip_identify), 1086 DEVMETHOD(device_probe, fwip_probe), 1087 DEVMETHOD(device_attach, fwip_attach), 1088 DEVMETHOD(device_detach, fwip_detach), 1089 { 0, 0 } 1090 }; 1091 1092 static driver_t fwip_driver = { 1093 "fwip", 1094 fwip_methods, 1095 sizeof(struct fwip_softc), 1096 }; 1097 1098 1099 #ifdef __DragonFly__ 1100 DECLARE_DUMMY_MODULE(fwip); 1101 #endif 1102 DRIVER_MODULE(fwip, firewire, fwip_driver, fwip_devclass, 0, 0); 1103 MODULE_VERSION(fwip, 1); 1104 MODULE_DEPEND(fwip, firewire, 1, 1, 1); 1105 #elif defined(__NetBSD__) 1106 CFATTACH_DECL_NEW(fwip, sizeof(struct fwip_softc), 1107 fwipmatch, fwipattach, fwipdetach, NULL); 1108 #endif 1109
Indexes created Thu Sep 25 06:09:39 GMT 2025