1 /* $NetBSD: if_fwip.c,v 1.17 2008/11/12 12:36:11 ad 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 1.17 2008/11/12 12:36:11 ad 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, struct cfdata *, 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, struct cfdata *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 fw_mtx_init(&fwip->mtx, "fwip", NULL, MTX_DEF); 270 /* XXX */ 271 fwip->dma_ch = -1; 272 273 fwip->fd.fc = fwa->fc; 274 if (tx_speed < 0) 275 tx_speed = fwip->fd.fc->speed; 276 277 fwip->fd.post_explore = NULL; 278 fwip->fd.post_busreset = fwip_post_busreset; 279 fwip->fw_softc.fwip = fwip; 280 FW_TASK_INIT(&fwip->start_send, 0, fwip_start_send, fwip); 281 282 /* 283 * Encode our hardware the way that arp likes it. 284 */ 285 hwaddr->sender_unique_ID_hi = htonl(fwip->fd.fc->eui.hi); 286 hwaddr->sender_unique_ID_lo = htonl(fwip->fd.fc->eui.lo); 287 hwaddr->sender_max_rec = fwip->fd.fc->maxrec; 288 hwaddr->sspd = fwip->fd.fc->speed; 289 hwaddr->sender_unicast_FIFO_hi = htons((uint16_t)(INET_FIFO >> 32)); 290 hwaddr->sender_unicast_FIFO_lo = htonl((uint32_t)INET_FIFO); 291 292 /* fill the rest and attach interface */ 293 ifp->if_softc = &fwip->fw_softc; 294 295 #if __FreeBSD_version >= 501113 || defined(__DragonFly__) || defined(__NetBSD__) 296 IF_INITNAME(ifp, dev, unit); 297 #else 298 ifp->if_unit = unit; 299 ifp->if_name = "fwip"; 300 #endif 301 #if defined(__NetBSD__) 302 IFQ_SET_READY(&ifp->if_snd); 303 #endif 304 SET_IFFUNC(ifp, fwip_start, fwip_ioctl, fwip_init, fwip_stop); 305 ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST); 306 ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE; 307 #ifdef DEVICE_POLLING 308 ifp->if_capabilities |= IFCAP_POLLING; 309 #endif 310 311 s = splfwnet(); 312 FIREWIRE_IFATTACH(ifp, hwaddr); 313 splx(s); 314 315 #if defined(__NetBSD__) 316 if (!pmf_device_register(self, NULL, NULL)) 317 aprint_error_dev(self, "couldn't establish power handler\n"); 318 else 319 pmf_class_network_register(self, ifp); 320 #endif 321 322 FWIPDEBUG(ifp, "interface created\n"); 323 FW_ATTACH_RETURN(0); 324 } 325 326 IF_STOP(fwip) 327 { 328 IF_STOP_START(fwip, ifp, fwip); 329 struct firewire_comm *fc; 330 struct fw_xferq *xferq; 331 struct fw_xfer *xfer, *next; 332 int i; 333 334 fc = fwip->fd.fc; 335 336 if (fwip->dma_ch >= 0) { 337 xferq = fc->ir[fwip->dma_ch]; 338 339 if (xferq->flag & FWXFERQ_RUNNING) 340 fc->irx_disable(fc, fwip->dma_ch); 341 xferq->flag &= 342 ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 343 FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 344 xferq->hand = NULL; 345 346 for (i = 0; i < xferq->bnchunk; i ++) 347 m_freem(xferq->bulkxfer[i].mbuf); 348 free(xferq->bulkxfer, M_FWIP); 349 350 fw_bindremove(fc, &fwip->fwb); 351 for (xfer = STAILQ_FIRST(&fwip->fwb.xferlist); xfer != NULL; 352 xfer = next) { 353 next = STAILQ_NEXT(xfer, link); 354 fw_xfer_free(xfer); 355 } 356 357 for (xfer = STAILQ_FIRST(&fwip->xferlist); xfer != NULL; 358 xfer = next) { 359 next = STAILQ_NEXT(xfer, link); 360 fw_xfer_free(xfer); 361 } 362 STAILQ_INIT(&fwip->xferlist); 363 364 xferq->bulkxfer = NULL; 365 fwip->dma_ch = -1; 366 } 367 368 #if defined(__FreeBSD__) 369 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 370 #elif defined(__NetBSD__) 371 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 372 #endif 373 } 374 375 FW_DETACH(fwip) 376 { 377 IF_DETACH_START(fwip, fwip); 378 struct ifnet *ifp; 379 int s; 380 381 ifp = fwip->fw_softc.fwip_ifp; 382 383 #ifdef DEVICE_POLLING 384 if (ifp->if_capenable & IFCAP_POLLING) 385 ether_poll_deregister(ifp); 386 #endif 387 388 s = splfwnet(); 389 390 FWIP_STOP(fwip); 391 FIREWIRE_IFDETACH(ifp); 392 fw_mtx_destroy(&fwip->mtx); 393 394 splx(s); 395 return 0; 396 } 397 398 #if defined(__NetBSD__) 399 int 400 fwipactivate(device_t self, enum devact act) 401 { 402 struct fwip_softc *fwip = device_private(self); 403 int s, error = 0; 404 405 s = splfwnet(); 406 switch (act) { 407 case DVACT_ACTIVATE: 408 error = EOPNOTSUPP; 409 break; 410 411 case DVACT_DEACTIVATE: 412 if_deactivate(fwip->fw_softc.fwip_ifp); 413 break; 414 } 415 splx(s); 416 417 return (error); 418 } 419 420 #endif 421 IF_INIT(fwip) 422 { 423 IF_INIT_START(fwip, fwip, ifp); 424 struct firewire_comm *fc; 425 struct fw_xferq *xferq; 426 struct fw_xfer *xfer; 427 struct mbuf *m; 428 int i; 429 430 FWIPDEBUG(ifp, "initializing\n"); 431 432 fc = fwip->fd.fc; 433 #define START 0 434 if (fwip->dma_ch < 0) { 435 fwip->dma_ch = fw_open_isodma(fc, /* tx */0); 436 if (fwip->dma_ch < 0) 437 IF_INIT_RETURN(ENXIO); 438 xferq = fc->ir[fwip->dma_ch]; 439 xferq->flag |= 440 FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_STREAM; 441 xferq->flag &= ~0xff; 442 xferq->flag |= broadcast_channel & 0xff; 443 /* register fwip_input handler */ 444 xferq->sc = (void *) fwip; 445 xferq->hand = fwip_stream_input; 446 xferq->bnchunk = rx_queue_len; 447 xferq->bnpacket = 1; 448 xferq->psize = MCLBYTES; 449 xferq->queued = 0; 450 xferq->buf = NULL; 451 xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 452 sizeof(struct fw_bulkxfer) * xferq->bnchunk, 453 M_FWIP, M_WAITOK); 454 if (xferq->bulkxfer == NULL) { 455 printf("if_fwip: malloc failed\n"); 456 IF_INIT_RETURN(ENOMEM); 457 } 458 STAILQ_INIT(&xferq->stvalid); 459 STAILQ_INIT(&xferq->stfree); 460 STAILQ_INIT(&xferq->stdma); 461 xferq->stproc = NULL; 462 for (i = 0; i < xferq->bnchunk; i ++) { 463 m = 464 #if defined(__DragonFly__) || __FreeBSD_version < 500000 465 m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 466 #else 467 m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 468 #endif 469 xferq->bulkxfer[i].mbuf = m; 470 if (m != NULL) { 471 m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 472 STAILQ_INSERT_TAIL(&xferq->stfree, 473 &xferq->bulkxfer[i], link); 474 } else 475 printf("fwip_as_input: m_getcl failed\n"); 476 } 477 478 fwip->fwb.start = INET_FIFO; 479 fwip->fwb.end = INET_FIFO + 16384; /* S3200 packet size */ 480 481 /* pre-allocate xfer */ 482 STAILQ_INIT(&fwip->fwb.xferlist); 483 for (i = 0; i < rx_queue_len; i ++) { 484 xfer = fw_xfer_alloc(M_FWIP); 485 if (xfer == NULL) 486 break; 487 m = m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 488 xfer->recv.payload = mtod(m, uint32_t *); 489 xfer->recv.pay_len = MCLBYTES; 490 xfer->hand = fwip_unicast_input; 491 xfer->fc = fc; 492 xfer->sc = (void *)fwip; 493 xfer->mbuf = m; 494 STAILQ_INSERT_TAIL(&fwip->fwb.xferlist, xfer, link); 495 } 496 fw_bindadd(fc, &fwip->fwb); 497 498 STAILQ_INIT(&fwip->xferlist); 499 for (i = 0; i < TX_MAX_QUEUE; i++) { 500 xfer = fw_xfer_alloc(M_FWIP); 501 if (xfer == NULL) 502 break; 503 xfer->send.spd = tx_speed; 504 xfer->fc = fwip->fd.fc; 505 xfer->sc = (void *)fwip; 506 xfer->hand = fwip_output_callback; 507 STAILQ_INSERT_TAIL(&fwip->xferlist, xfer, link); 508 } 509 } else 510 xferq = fc->ir[fwip->dma_ch]; 511 512 fwip->last_dest.hi = 0; 513 fwip->last_dest.lo = 0; 514 515 /* start dma */ 516 if ((xferq->flag & FWXFERQ_RUNNING) == 0) 517 fc->irx_enable(fc, fwip->dma_ch); 518 519 #if defined(__FreeBSD__) 520 ifp->if_drv_flags |= IFF_DRV_RUNNING; 521 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 522 #elif defined(__NetBSD__) 523 ifp->if_flags |= IFF_RUNNING; 524 ifp->if_flags &= ~IFF_OACTIVE; 525 #endif 526 527 #if 0 528 /* attempt to start output */ 529 fwip_start(ifp); 530 #endif 531 IF_INIT_RETURN(0); 532 } 533 534 static int 535 fwip_ioctl(struct ifnet *ifp, u_long cmd, void *data) 536 { 537 IF_IOCTL_START(fwip, fwip); 538 int s, error = 0; 539 540 switch (cmd) { 541 case SIOCSIFFLAGS: 542 s = splfwnet(); 543 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 544 ; 545 else if (ifp->if_flags & IFF_UP) { 546 if (!(ifp->if_flags & IFF_RUNNING)) 547 FWIP_INIT(fwip); 548 } else { 549 if (ifp->if_flags & IFF_RUNNING) 550 FWIP_STOP(fwip); 551 } 552 splx(s); 553 break; 554 case SIOCADDMULTI: 555 case SIOCDELMULTI: 556 break; 557 case SIOCSIFCAP: 558 if ((error = FIREWIRE_IOCTL(ifp, cmd, data)) != ENETRESET) 559 break; 560 error = 0; 561 #ifdef DEVICE_POLLING 562 { 563 struct ifreq *ifr = (struct ifreq *) data; 564 struct firewire_comm *fc = fc = fwip->fd.fc; 565 566 if (ifr->ifr_reqcap & IFCAP_POLLING && 567 !(ifp->if_capenable & IFCAP_POLLING)) { 568 error = ether_poll_register(fwip_poll, ifp); 569 if (error) 570 return(error); 571 /* Disable interrupts */ 572 fc->set_intr(fc, 0); 573 ifp->if_capenable |= IFCAP_POLLING; 574 return (error); 575 576 } 577 if (!(ifr->ifr_reqcap & IFCAP_POLLING) && 578 ifp->if_capenable & IFCAP_POLLING) { 579 error = ether_poll_deregister(ifp); 580 /* Enable interrupts. */ 581 fc->set_intr(fc, 1); 582 ifp->if_capenable &= ~IFCAP_POLLING; 583 return (error); 584 } 585 } 586 #endif /* DEVICE_POLLING */ 587 break; 588 589 default: 590 s = splfwnet(); 591 error = FIREWIRE_IOCTL(ifp, cmd, data); 592 splx(s); 593 return (error); 594 } 595 596 return error; 597 } 598 599 static void 600 fwip_post_busreset(void *arg) 601 { 602 struct fwip_softc *fwip = arg; 603 struct crom_src *src; 604 struct crom_chunk *root; 605 606 src = fwip->fd.fc->crom_src; 607 root = fwip->fd.fc->crom_root; 608 609 /* RFC2734 IPv4 over IEEE1394 */ 610 bzero(&fwip->unit4, sizeof(struct crom_chunk)); 611 crom_add_chunk(src, root, &fwip->unit4, CROM_UDIR); 612 crom_add_entry(&fwip->unit4, CSRKEY_SPEC, CSRVAL_IETF); 613 crom_add_simple_text(src, &fwip->unit4, &fwip->spec4, "IANA"); 614 crom_add_entry(&fwip->unit4, CSRKEY_VER, 1); 615 crom_add_simple_text(src, &fwip->unit4, &fwip->ver4, "IPv4"); 616 617 /* RFC3146 IPv6 over IEEE1394 */ 618 bzero(&fwip->unit6, sizeof(struct crom_chunk)); 619 crom_add_chunk(src, root, &fwip->unit6, CROM_UDIR); 620 crom_add_entry(&fwip->unit6, CSRKEY_SPEC, CSRVAL_IETF); 621 crom_add_simple_text(src, &fwip->unit6, &fwip->spec6, "IANA"); 622 crom_add_entry(&fwip->unit6, CSRKEY_VER, 2); 623 crom_add_simple_text(src, &fwip->unit6, &fwip->ver6, "IPv6"); 624 625 fwip->last_dest.hi = 0; 626 fwip->last_dest.lo = 0; 627 FIREWIRE_BUSRESET(fwip->fw_softc.fwip_ifp); 628 } 629 630 static void 631 fwip_output_callback(struct fw_xfer *xfer) 632 { 633 struct fwip_softc *fwip; 634 struct ifnet *ifp; 635 int s; 636 637 fwip = (struct fwip_softc *)xfer->sc; 638 ifp = fwip->fw_softc.fwip_ifp; 639 /* XXX error check */ 640 FWIPDEBUG(ifp, "resp = %d\n", xfer->resp); 641 if (xfer->resp != 0) 642 ifp->if_oerrors ++; 643 644 m_freem(xfer->mbuf); 645 fw_xfer_unload(xfer); 646 647 s = splfwnet(); 648 FWIP_LOCK(fwip); 649 STAILQ_INSERT_TAIL(&fwip->xferlist, xfer, link); 650 FWIP_UNLOCK(fwip); 651 splx(s); 652 653 /* for queue full */ 654 if (ifp->if_snd.ifq_head != NULL) { 655 fwip_start(ifp); 656 } 657 } 658 659 static void 660 fwip_start(struct ifnet *ifp) 661 { 662 struct fwip_softc *fwip = 663 ((struct fwip_eth_softc *)ifp->if_softc)->fwip; 664 int s; 665 666 FWIPDEBUG(ifp, "starting\n"); 667 668 if (fwip->dma_ch < 0) { 669 struct mbuf *m = NULL; 670 671 FWIPDEBUG(ifp, "not ready\n"); 672 673 s = splfwnet(); 674 do { 675 IF_DEQUEUE(&ifp->if_snd, m); 676 if (m != NULL) 677 m_freem(m); 678 ifp->if_oerrors ++; 679 } while (m != NULL); 680 splx(s); 681 682 return; 683 } 684 685 s = splfwnet(); 686 #if defined(__FreeBSD__) 687 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 688 #elif defined(__NetBSD__) 689 ifp->if_flags |= IFF_OACTIVE; 690 #endif 691 692 if (ifp->if_snd.ifq_len != 0) 693 fwip_async_output(fwip, ifp); 694 695 #if defined(__FreeBSD__) 696 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 697 #elif defined(__NetBSD__) 698 ifp->if_flags &= ~IFF_OACTIVE; 699 #endif 700 splx(s); 701 } 702 703 /* Async. stream output */ 704 static void 705 fwip_async_output(struct fwip_softc *fwip, struct ifnet *ifp) 706 { 707 struct firewire_comm *fc = fwip->fd.fc; 708 struct mbuf *m; 709 struct m_tag *mtag; 710 struct fw_hwaddr *destfw; 711 struct fw_xfer *xfer; 712 struct fw_xferq *xferq; 713 struct fw_pkt *fp; 714 uint16_t nodeid; 715 int error; 716 int i = 0; 717 718 xfer = NULL; 719 xferq = fc->atq; 720 while ((xferq->queued < xferq->maxq - 1) && 721 (ifp->if_snd.ifq_head != NULL)) { 722 FWIP_LOCK(fwip); 723 xfer = STAILQ_FIRST(&fwip->xferlist); 724 if (xfer == NULL) { 725 FWIP_UNLOCK(fwip); 726 #if 0 727 printf("if_fwip: lack of xfer\n"); 728 #endif 729 break; 730 } 731 STAILQ_REMOVE_HEAD(&fwip->xferlist, link); 732 FWIP_UNLOCK(fwip); 733 734 IF_DEQUEUE(&ifp->if_snd, m); 735 if (m == NULL) { 736 FWIP_LOCK(fwip); 737 STAILQ_INSERT_HEAD(&fwip->xferlist, xfer, link); 738 FWIP_UNLOCK(fwip); 739 break; 740 } 741 742 /* 743 * Dig out the link-level address which 744 * firewire_output got via arp or neighbour 745 * discovery. If we don't have a link-level address, 746 * just stick the thing on the broadcast channel. 747 */ 748 mtag = m_tag_locate(m, MTAG_FIREWIRE, MTAG_FIREWIRE_HWADDR, 0); 749 if (mtag == NULL) 750 destfw = 0; 751 else 752 destfw = (struct fw_hwaddr *) (mtag + 1); 753 754 /* 755 * We don't do any bpf stuff here - the generic code 756 * in firewire_output gives the packet to bpf before 757 * it adds the link-level encapsulation. 758 */ 759 760 /* 761 * Put the mbuf in the xfer early in case we hit an 762 * error case below - fwip_output_callback will free 763 * the mbuf. 764 */ 765 xfer->mbuf = m; 766 767 /* 768 * We use the arp result (if any) to add a suitable firewire 769 * packet header before handing off to the bus. 770 */ 771 fp = &xfer->send.hdr; 772 nodeid = FWLOCALBUS | fc->nodeid; 773 if ((m->m_flags & M_BCAST) || !destfw) { 774 /* 775 * Broadcast packets are sent as GASP packets with 776 * specifier ID 0x00005e, version 1 on the broadcast 777 * channel. To be conservative, we send at the 778 * slowest possible speed. 779 */ 780 uint32_t *p; 781 782 M_PREPEND(m, 2*sizeof(uint32_t), M_DONTWAIT); 783 p = mtod(m, uint32_t *); 784 fp->mode.stream.len = m->m_pkthdr.len; 785 fp->mode.stream.chtag = broadcast_channel; 786 fp->mode.stream.tcode = FWTCODE_STREAM; 787 fp->mode.stream.sy = 0; 788 xfer->send.spd = 0; 789 p[0] = htonl(nodeid << 16); 790 p[1] = htonl((0x5e << 24) | 1); 791 } else { 792 /* 793 * Unicast packets are sent as block writes to the 794 * target's unicast fifo address. If we can't 795 * find the node address, we just give up. We 796 * could broadcast it but that might overflow 797 * the packet size limitations due to the 798 * extra GASP header. Note: the hardware 799 * address is stored in network byte order to 800 * make life easier for ARP. 801 */ 802 struct fw_device *fd; 803 struct fw_eui64 eui; 804 805 eui.hi = ntohl(destfw->sender_unique_ID_hi); 806 eui.lo = ntohl(destfw->sender_unique_ID_lo); 807 if (fwip->last_dest.hi != eui.hi || 808 fwip->last_dest.lo != eui.lo) { 809 fd = fw_noderesolve_eui64(fc, &eui); 810 if (!fd) { 811 /* error */ 812 ifp->if_oerrors ++; 813 /* XXX set error code */ 814 fwip_output_callback(xfer); 815 continue; 816 817 } 818 fwip->last_hdr.mode.wreqb.dst = FWLOCALBUS | fd->dst; 819 fwip->last_hdr.mode.wreqb.tlrt = 0; 820 fwip->last_hdr.mode.wreqb.tcode = FWTCODE_WREQB; 821 fwip->last_hdr.mode.wreqb.pri = 0; 822 fwip->last_hdr.mode.wreqb.src = nodeid; 823 fwip->last_hdr.mode.wreqb.dest_hi = 824 ntohs(destfw->sender_unicast_FIFO_hi); 825 fwip->last_hdr.mode.wreqb.dest_lo = 826 ntohl(destfw->sender_unicast_FIFO_lo); 827 fwip->last_hdr.mode.wreqb.extcode = 0; 828 fwip->last_dest = eui; 829 } 830 831 fp->mode.wreqb = fwip->last_hdr.mode.wreqb; 832 fp->mode.wreqb.len = m->m_pkthdr.len; 833 xfer->send.spd = min(destfw->sspd, fc->speed); 834 } 835 836 xfer->send.pay_len = m->m_pkthdr.len; 837 838 error = fw_asyreq(fc, -1, xfer); 839 if (error == EAGAIN) { 840 /* 841 * We ran out of tlabels - requeue the packet 842 * for later transmission. 843 */ 844 xfer->mbuf = 0; 845 FWIP_LOCK(fwip); 846 STAILQ_INSERT_TAIL(&fwip->xferlist, xfer, link); 847 FWIP_UNLOCK(fwip); 848 IF_PREPEND(&ifp->if_snd, m); 849 break; 850 } 851 if (error) { 852 /* error */ 853 ifp->if_oerrors ++; 854 /* XXX set error code */ 855 fwip_output_callback(xfer); 856 continue; 857 } else { 858 ifp->if_opackets ++; 859 i++; 860 } 861 } 862 #if 0 863 if (i > 1) 864 printf("%d queued\n", i); 865 #endif 866 if (i > 0) 867 xferq->start(fc); 868 } 869 870 static void 871 fwip_start_send (void *arg, int count) 872 { 873 struct fwip_softc *fwip = arg; 874 875 fwip->fd.fc->atq->start(fwip->fd.fc); 876 } 877 878 /* Async. stream output */ 879 static void 880 fwip_stream_input(struct fw_xferq *xferq) 881 { 882 struct mbuf *m, *m0; 883 struct m_tag *mtag; 884 struct ifnet *ifp; 885 struct fwip_softc *fwip; 886 struct fw_bulkxfer *sxfer; 887 struct fw_pkt *fp; 888 uint16_t src; 889 uint32_t *p; 890 891 fwip = (struct fwip_softc *)xferq->sc; 892 ifp = fwip->fw_softc.fwip_ifp; 893 while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 894 STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 895 fp = mtod(sxfer->mbuf, struct fw_pkt *); 896 if (fwip->fd.fc->irx_post != NULL) 897 fwip->fd.fc->irx_post(fwip->fd.fc, fp->mode.ld); 898 m = sxfer->mbuf; 899 900 /* insert new rbuf */ 901 sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 902 if (m0 != NULL) { 903 m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 904 STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 905 } else 906 printf("fwip_as_input: m_getcl failed\n"); 907 908 /* 909 * We must have a GASP header - leave the 910 * encapsulation sanity checks to the generic 911 * code. Remeber that we also have the firewire async 912 * stream header even though that isn't accounted for 913 * in mode.stream.len. 914 */ 915 if (sxfer->resp != 0 || fp->mode.stream.len < 916 2*sizeof(uint32_t)) { 917 m_freem(m); 918 ifp->if_ierrors ++; 919 continue; 920 } 921 m->m_len = m->m_pkthdr.len = fp->mode.stream.len 922 + sizeof(fp->mode.stream); 923 924 /* 925 * If we received the packet on the broadcast channel, 926 * mark it as broadcast, otherwise we assume it must 927 * be multicast. 928 */ 929 if (fp->mode.stream.chtag == broadcast_channel) 930 m->m_flags |= M_BCAST; 931 else 932 m->m_flags |= M_MCAST; 933 934 /* 935 * Make sure we recognise the GASP specifier and 936 * version. 937 */ 938 p = mtod(m, uint32_t *); 939 if ((((ntohl(p[1]) & 0xffff) << 8) | ntohl(p[2]) >> 24) != 0x00005e 940 || (ntohl(p[2]) & 0xffffff) != 1) { 941 FWIPDEBUG(ifp, "Unrecognised GASP header %#08x %#08x\n", 942 ntohl(p[1]), ntohl(p[2])); 943 m_freem(m); 944 ifp->if_ierrors ++; 945 continue; 946 } 947 948 /* 949 * Record the sender ID for possible BPF usage. 950 */ 951 src = ntohl(p[1]) >> 16; 952 if (bpf_peers_present(ifp->if_bpf)) { 953 mtag = m_tag_alloc(MTAG_FIREWIRE, 954 MTAG_FIREWIRE_SENDER_EUID, 955 2*sizeof(uint32_t), M_NOWAIT); 956 if (mtag) { 957 /* bpf wants it in network byte order */ 958 struct fw_device *fd; 959 uint32_t *p2 = (uint32_t *) (mtag + 1); 960 fd = fw_noderesolve_nodeid(fwip->fd.fc, 961 src & 0x3f); 962 if (fd) { 963 p2[0] = htonl(fd->eui.hi); 964 p2[1] = htonl(fd->eui.lo); 965 } else { 966 p2[0] = 0; 967 p2[1] = 0; 968 } 969 m_tag_prepend(m, mtag); 970 } 971 } 972 973 /* 974 * Trim off the GASP header 975 */ 976 m_adj(m, 3*sizeof(uint32_t)); 977 m->m_pkthdr.rcvif = ifp; 978 FIREWIRE_INPUT(ifp, m, src); 979 ifp->if_ipackets ++; 980 } 981 if (STAILQ_FIRST(&xferq->stfree) != NULL) 982 fwip->fd.fc->irx_enable(fwip->fd.fc, fwip->dma_ch); 983 } 984 985 static inline void 986 fwip_unicast_input_recycle(struct fwip_softc *fwip, struct fw_xfer *xfer) 987 { 988 struct mbuf *m; 989 990 /* 991 * We have finished with a unicast xfer. Allocate a new 992 * cluster and stick it on the back of the input queue. 993 */ 994 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 995 if (m == NULL) 996 printf("fwip_unicast_input_recycle: m_getcl failed\n"); 997 xfer->mbuf = m; 998 xfer->recv.payload = mtod(m, uint32_t *); 999 xfer->recv.pay_len = MCLBYTES; 1000 xfer->mbuf = m; 1001 STAILQ_INSERT_TAIL(&fwip->fwb.xferlist, xfer, link); 1002 } 1003 1004 static void 1005 fwip_unicast_input(struct fw_xfer *xfer) 1006 { 1007 uint64_t address; 1008 struct mbuf *m; 1009 struct m_tag *mtag; 1010 struct ifnet *ifp; 1011 struct fwip_softc *fwip; 1012 struct fw_pkt *fp; 1013 //struct fw_pkt *sfp; 1014 int rtcode; 1015 1016 fwip = (struct fwip_softc *)xfer->sc; 1017 ifp = fwip->fw_softc.fwip_ifp; 1018 m = xfer->mbuf; 1019 xfer->mbuf = 0; 1020 fp = &xfer->recv.hdr; 1021 1022 /* 1023 * Check the fifo address - we only accept addresses of 1024 * exactly INET_FIFO. 1025 */ 1026 address = ((uint64_t)fp->mode.wreqb.dest_hi << 32) 1027 | fp->mode.wreqb.dest_lo; 1028 if (fp->mode.wreqb.tcode != FWTCODE_WREQB) { 1029 rtcode = FWRCODE_ER_TYPE; 1030 } else if (address != INET_FIFO) { 1031 rtcode = FWRCODE_ER_ADDR; 1032 } else { 1033 rtcode = FWRCODE_COMPLETE; 1034 } 1035 1036 /* 1037 * Pick up a new mbuf and stick it on the back of the receive 1038 * queue. 1039 */ 1040 fwip_unicast_input_recycle(fwip, xfer); 1041 1042 /* 1043 * If we've already rejected the packet, give up now. 1044 */ 1045 if (rtcode != FWRCODE_COMPLETE) { 1046 m_freem(m); 1047 ifp->if_ierrors ++; 1048 return; 1049 } 1050 1051 if (bpf_peers_present(ifp->if_bpf)) { 1052 /* 1053 * Record the sender ID for possible BPF usage. 1054 */ 1055 mtag = m_tag_alloc(MTAG_FIREWIRE, MTAG_FIREWIRE_SENDER_EUID, 1056 2*sizeof(uint32_t), M_NOWAIT); 1057 if (mtag) { 1058 /* bpf wants it in network byte order */ 1059 struct fw_device *fd; 1060 uint32_t *p = (uint32_t *) (mtag + 1); 1061 fd = fw_noderesolve_nodeid(fwip->fd.fc, 1062 fp->mode.wreqb.src & 0x3f); 1063 if (fd) { 1064 p[0] = htonl(fd->eui.hi); 1065 p[1] = htonl(fd->eui.lo); 1066 } else { 1067 p[0] = 0; 1068 p[1] = 0; 1069 } 1070 m_tag_prepend(m, mtag); 1071 } 1072 } 1073 1074 /* 1075 * Hand off to the generic encapsulation code. We don't use 1076 * ifp->if_input so that we can pass the source nodeid as an 1077 * argument to facilitate link-level fragment reassembly. 1078 */ 1079 m->m_len = m->m_pkthdr.len = fp->mode.wreqb.len; 1080 m->m_pkthdr.rcvif = ifp; 1081 FIREWIRE_INPUT(ifp, m, fp->mode.wreqb.src); 1082 ifp->if_ipackets ++; 1083 } 1084 1085 #if defined(__FreeBSD__) 1086 static devclass_t fwip_devclass; 1087 1088 static device_method_t fwip_methods[] = { 1089 /* device interface */ 1090 DEVMETHOD(device_identify, fwip_identify), 1091 DEVMETHOD(device_probe, fwip_probe), 1092 DEVMETHOD(device_attach, fwip_attach), 1093 DEVMETHOD(device_detach, fwip_detach), 1094 { 0, 0 } 1095 }; 1096 1097 static driver_t fwip_driver = { 1098 "fwip", 1099 fwip_methods, 1100 sizeof(struct fwip_softc), 1101 }; 1102 1103 1104 #ifdef __DragonFly__ 1105 DECLARE_DUMMY_MODULE(fwip); 1106 #endif 1107 DRIVER_MODULE(fwip, firewire, fwip_driver, fwip_devclass, 0, 0); 1108 MODULE_VERSION(fwip, 1); 1109 MODULE_DEPEND(fwip, firewire, 1, 1, 1); 1110 #elif defined(__NetBSD__) 1111 CFATTACH_DECL_NEW(fwip, sizeof(struct fwip_softc), 1112 fwipmatch, fwipattach, fwipdetach, NULL); 1113 #endif 1114