if_fwip.c revision 1.10
1 /* $NetBSD: if_fwip.c,v 1.10 2007/11/05 19:08:57 kiyohara 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 FWIPDEBUG(ifp, "interface created\n"); 317 FW_ATTACH_RETURN(0); 318 } 319 320 IF_STOP(fwip) 321 { 322 IF_STOP_START(fwip, ifp, fwip); 323 struct firewire_comm *fc; 324 struct fw_xferq *xferq; 325 struct fw_xfer *xfer, *next; 326 int i; 327 328 fc = fwip->fd.fc; 329 330 if (fwip->dma_ch >= 0) { 331 xferq = fc->ir[fwip->dma_ch]; 332 333 if (xferq->flag & FWXFERQ_RUNNING) 334 fc->irx_disable(fc, fwip->dma_ch); 335 xferq->flag &= 336 ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 337 FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 338 xferq->hand = NULL; 339 340 for (i = 0; i < xferq->bnchunk; i ++) 341 m_freem(xferq->bulkxfer[i].mbuf); 342 free(xferq->bulkxfer, M_FWIP); 343 344 fw_bindremove(fc, &fwip->fwb); 345 for (xfer = STAILQ_FIRST(&fwip->fwb.xferlist); xfer != NULL; 346 xfer = next) { 347 next = STAILQ_NEXT(xfer, link); 348 fw_xfer_free(xfer); 349 } 350 351 for (xfer = STAILQ_FIRST(&fwip->xferlist); xfer != NULL; 352 xfer = next) { 353 next = STAILQ_NEXT(xfer, link); 354 fw_xfer_free(xfer); 355 } 356 STAILQ_INIT(&fwip->xferlist); 357 358 xferq->bulkxfer = NULL; 359 fwip->dma_ch = -1; 360 } 361 362 #if defined(__FreeBSD__) 363 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 364 #elif defined(__NetBSD__) 365 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 366 #endif 367 } 368 369 FW_DETACH(fwip) 370 { 371 IF_DETACH_START(fwip, fwip); 372 struct ifnet *ifp; 373 int s; 374 375 ifp = fwip->fw_softc.fwip_ifp; 376 377 #ifdef DEVICE_POLLING 378 if (ifp->if_capenable & IFCAP_POLLING) 379 ether_poll_deregister(ifp); 380 #endif 381 382 s = splfwnet(); 383 384 FWIP_STOP(fwip); 385 FIREWIRE_IFDETACH(ifp); 386 fw_mtx_destroy(&fwip->mtx); 387 388 splx(s); 389 return 0; 390 } 391 392 #if defined(__NetBSD__) 393 int 394 fwipactivate(struct device *self, enum devact act) 395 { 396 struct fwip_softc *fwip = (struct fwip_softc *)self; 397 int s, error = 0; 398 399 s = splfwnet(); 400 switch (act) { 401 case DVACT_ACTIVATE: 402 error = EOPNOTSUPP; 403 break; 404 405 case DVACT_DEACTIVATE: 406 if_deactivate(fwip->fw_softc.fwip_ifp); 407 break; 408 } 409 splx(s); 410 411 return (error); 412 } 413 414 #endif 415 IF_INIT(fwip) 416 { 417 IF_INIT_START(fwip, fwip, ifp); 418 struct firewire_comm *fc; 419 struct fw_xferq *xferq; 420 struct fw_xfer *xfer; 421 struct mbuf *m; 422 int i; 423 424 FWIPDEBUG(ifp, "initializing\n"); 425 426 fc = fwip->fd.fc; 427 #define START 0 428 if (fwip->dma_ch < 0) { 429 fwip->dma_ch = fw_open_isodma(fc, /* tx */0); 430 if (fwip->dma_ch < 0) 431 IF_INIT_RETURN(ENXIO); 432 xferq = fc->ir[fwip->dma_ch]; 433 xferq->flag |= 434 FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_STREAM; 435 xferq->flag &= ~0xff; 436 xferq->flag |= broadcast_channel & 0xff; 437 /* register fwip_input handler */ 438 xferq->sc = (void *) fwip; 439 xferq->hand = fwip_stream_input; 440 xferq->bnchunk = rx_queue_len; 441 xferq->bnpacket = 1; 442 xferq->psize = MCLBYTES; 443 xferq->queued = 0; 444 xferq->buf = NULL; 445 xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 446 sizeof(struct fw_bulkxfer) * xferq->bnchunk, 447 M_FWIP, M_WAITOK); 448 if (xferq->bulkxfer == NULL) { 449 printf("if_fwip: malloc failed\n"); 450 IF_INIT_RETURN(ENOMEM); 451 } 452 STAILQ_INIT(&xferq->stvalid); 453 STAILQ_INIT(&xferq->stfree); 454 STAILQ_INIT(&xferq->stdma); 455 xferq->stproc = NULL; 456 for (i = 0; i < xferq->bnchunk; i ++) { 457 m = 458 #if defined(__DragonFly__) || __FreeBSD_version < 500000 459 m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 460 #else 461 m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 462 #endif 463 xferq->bulkxfer[i].mbuf = m; 464 if (m != NULL) { 465 m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 466 STAILQ_INSERT_TAIL(&xferq->stfree, 467 &xferq->bulkxfer[i], link); 468 } else 469 printf("fwip_as_input: m_getcl failed\n"); 470 } 471 472 fwip->fwb.start = INET_FIFO; 473 fwip->fwb.end = INET_FIFO + 16384; /* S3200 packet size */ 474 475 /* pre-allocate xfer */ 476 STAILQ_INIT(&fwip->fwb.xferlist); 477 for (i = 0; i < rx_queue_len; i ++) { 478 xfer = fw_xfer_alloc(M_FWIP); 479 if (xfer == NULL) 480 break; 481 m = m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 482 xfer->recv.payload = mtod(m, uint32_t *); 483 xfer->recv.pay_len = MCLBYTES; 484 xfer->hand = fwip_unicast_input; 485 xfer->fc = fc; 486 xfer->sc = (void *)fwip; 487 xfer->mbuf = m; 488 STAILQ_INSERT_TAIL(&fwip->fwb.xferlist, xfer, link); 489 } 490 fw_bindadd(fc, &fwip->fwb); 491 492 STAILQ_INIT(&fwip->xferlist); 493 for (i = 0; i < TX_MAX_QUEUE; i++) { 494 xfer = fw_xfer_alloc(M_FWIP); 495 if (xfer == NULL) 496 break; 497 xfer->send.spd = tx_speed; 498 xfer->fc = fwip->fd.fc; 499 xfer->sc = (void *)fwip; 500 xfer->hand = fwip_output_callback; 501 STAILQ_INSERT_TAIL(&fwip->xferlist, xfer, link); 502 } 503 } else 504 xferq = fc->ir[fwip->dma_ch]; 505 506 fwip->last_dest.hi = 0; 507 fwip->last_dest.lo = 0; 508 509 /* start dma */ 510 if ((xferq->flag & FWXFERQ_RUNNING) == 0) 511 fc->irx_enable(fc, fwip->dma_ch); 512 513 #if defined(__FreeBSD__) 514 ifp->if_drv_flags |= IFF_DRV_RUNNING; 515 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 516 #elif defined(__NetBSD__) 517 ifp->if_flags |= IFF_RUNNING; 518 ifp->if_flags &= ~IFF_OACTIVE; 519 #endif 520 521 #if 0 522 /* attempt to start output */ 523 fwip_start(ifp); 524 #endif 525 IF_INIT_RETURN(0); 526 } 527 528 static int 529 fwip_ioctl(struct ifnet *ifp, u_long cmd, void *data) 530 { 531 IF_IOCTL_START(fwip, fwip); 532 int s, error; 533 534 switch (cmd) { 535 case SIOCSIFFLAGS: 536 s = splfwnet(); 537 if (ifp->if_flags & IFF_UP) { 538 #if defined(__FreeBSD__) 539 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 540 #elif defined(__NetBSD__) 541 if (!(ifp->if_flags & IFF_RUNNING)) 542 #endif 543 FWIP_INIT(fwip); 544 } else { 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_STOP(fwip); 551 } 552 splx(s); 553 break; 554 case SIOCADDMULTI: 555 case SIOCDELMULTI: 556 break; 557 case SIOCSIFCAP: 558 #ifdef DEVICE_POLLING 559 { 560 struct ifreq *ifr = (struct ifreq *) data; 561 struct firewire_comm *fc = fc = fwip->fd.fc; 562 563 if (ifr->ifr_reqcap & IFCAP_POLLING && 564 !(ifp->if_capenable & IFCAP_POLLING)) { 565 error = ether_poll_register(fwip_poll, ifp); 566 if (error) 567 return(error); 568 /* Disable interrupts */ 569 fc->set_intr(fc, 0); 570 ifp->if_capenable |= IFCAP_POLLING; 571 return (error); 572 573 } 574 if (!(ifr->ifr_reqcap & IFCAP_POLLING) && 575 ifp->if_capenable & IFCAP_POLLING) { 576 error = ether_poll_deregister(ifp); 577 /* Enable interrupts. */ 578 fc->set_intr(fc, 1); 579 ifp->if_capenable &= ~IFCAP_POLLING; 580 return (error); 581 } 582 } 583 #endif /* DEVICE_POLLING */ 584 break; 585 586 #if (defined(__FreeBSD__) && __FreeBSD_version >= 500000) || defined(__NetBSD__) 587 default: 588 #else 589 case SIOCSIFADDR: 590 case SIOCGIFADDR: 591 case SIOCSIFMTU: 592 #endif 593 s = splfwnet(); 594 error = FIREWIRE_IOCTL(ifp, cmd, data); 595 splx(s); 596 return (error); 597 #if defined(__DragonFly__) || \ 598 (defined(__FreeBSD__) && __FreeBSD_version < 500000) 599 default: 600 return (EINVAL); 601 #endif 602 } 603 604 return (0); 605 } 606 607 static void 608 fwip_post_busreset(void *arg) 609 { 610 struct fwip_softc *fwip = arg; 611 struct crom_src *src; 612 struct crom_chunk *root; 613 614 src = fwip->fd.fc->crom_src; 615 root = fwip->fd.fc->crom_root; 616 617 /* RFC2734 IPv4 over IEEE1394 */ 618 bzero(&fwip->unit4, sizeof(struct crom_chunk)); 619 crom_add_chunk(src, root, &fwip->unit4, CROM_UDIR); 620 crom_add_entry(&fwip->unit4, CSRKEY_SPEC, CSRVAL_IETF); 621 crom_add_simple_text(src, &fwip->unit4, &fwip->spec4, "IANA"); 622 crom_add_entry(&fwip->unit4, CSRKEY_VER, 1); 623 crom_add_simple_text(src, &fwip->unit4, &fwip->ver4, "IPv4"); 624 625 /* RFC3146 IPv6 over IEEE1394 */ 626 bzero(&fwip->unit6, sizeof(struct crom_chunk)); 627 crom_add_chunk(src, root, &fwip->unit6, CROM_UDIR); 628 crom_add_entry(&fwip->unit6, CSRKEY_SPEC, CSRVAL_IETF); 629 crom_add_simple_text(src, &fwip->unit6, &fwip->spec6, "IANA"); 630 crom_add_entry(&fwip->unit6, CSRKEY_VER, 2); 631 crom_add_simple_text(src, &fwip->unit6, &fwip->ver6, "IPv6"); 632 633 fwip->last_dest.hi = 0; 634 fwip->last_dest.lo = 0; 635 FIREWIRE_BUSRESET(fwip->fw_softc.fwip_ifp); 636 } 637 638 static void 639 fwip_output_callback(struct fw_xfer *xfer) 640 { 641 struct fwip_softc *fwip; 642 struct ifnet *ifp; 643 int s; 644 645 fwip = (struct fwip_softc *)xfer->sc; 646 ifp = fwip->fw_softc.fwip_ifp; 647 /* XXX error check */ 648 FWIPDEBUG(ifp, "resp = %d\n", xfer->resp); 649 if (xfer->resp != 0) 650 ifp->if_oerrors ++; 651 652 m_freem(xfer->mbuf); 653 fw_xfer_unload(xfer); 654 655 s = splfwnet(); 656 FWIP_LOCK(fwip); 657 STAILQ_INSERT_TAIL(&fwip->xferlist, xfer, link); 658 FWIP_UNLOCK(fwip); 659 splx(s); 660 661 /* for queue full */ 662 if (ifp->if_snd.ifq_head != NULL) { 663 fwip_start(ifp); 664 } 665 } 666 667 static void 668 fwip_start(struct ifnet *ifp) 669 { 670 struct fwip_softc *fwip = 671 ((struct fwip_eth_softc *)ifp->if_softc)->fwip; 672 int s; 673 674 FWIPDEBUG(ifp, "starting\n"); 675 676 if (fwip->dma_ch < 0) { 677 struct mbuf *m = NULL; 678 679 FWIPDEBUG(ifp, "not ready\n"); 680 681 s = splfwnet(); 682 do { 683 IF_DEQUEUE(&ifp->if_snd, m); 684 if (m != NULL) 685 m_freem(m); 686 ifp->if_oerrors ++; 687 } while (m != NULL); 688 splx(s); 689 690 return; 691 } 692 693 s = splfwnet(); 694 #if defined(__FreeBSD__) 695 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 696 #elif defined(__NetBSD__) 697 ifp->if_flags |= IFF_OACTIVE; 698 #endif 699 700 if (ifp->if_snd.ifq_len != 0) 701 fwip_async_output(fwip, ifp); 702 703 #if defined(__FreeBSD__) 704 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 705 #elif defined(__NetBSD__) 706 ifp->if_flags &= ~IFF_OACTIVE; 707 #endif 708 splx(s); 709 } 710 711 /* Async. stream output */ 712 static void 713 fwip_async_output(struct fwip_softc *fwip, struct ifnet *ifp) 714 { 715 struct firewire_comm *fc = fwip->fd.fc; 716 struct mbuf *m; 717 struct m_tag *mtag; 718 struct fw_hwaddr *destfw; 719 struct fw_xfer *xfer; 720 struct fw_xferq *xferq; 721 struct fw_pkt *fp; 722 uint16_t nodeid; 723 int error; 724 int i = 0; 725 726 xfer = NULL; 727 xferq = fc->atq; 728 while ((xferq->queued < xferq->maxq - 1) && 729 (ifp->if_snd.ifq_head != NULL)) { 730 FWIP_LOCK(fwip); 731 xfer = STAILQ_FIRST(&fwip->xferlist); 732 if (xfer == NULL) { 733 FWIP_UNLOCK(fwip); 734 #if 0 735 printf("if_fwip: lack of xfer\n"); 736 #endif 737 break; 738 } 739 STAILQ_REMOVE_HEAD(&fwip->xferlist, link); 740 FWIP_UNLOCK(fwip); 741 742 IF_DEQUEUE(&ifp->if_snd, m); 743 if (m == NULL) { 744 FWIP_LOCK(fwip); 745 STAILQ_INSERT_HEAD(&fwip->xferlist, xfer, link); 746 FWIP_UNLOCK(fwip); 747 break; 748 } 749 750 /* 751 * Dig out the link-level address which 752 * firewire_output got via arp or neighbour 753 * discovery. If we don't have a link-level address, 754 * just stick the thing on the broadcast channel. 755 */ 756 mtag = m_tag_locate(m, MTAG_FIREWIRE, MTAG_FIREWIRE_HWADDR, 0); 757 if (mtag == NULL) 758 destfw = 0; 759 else 760 destfw = (struct fw_hwaddr *) (mtag + 1); 761 762 /* 763 * We don't do any bpf stuff here - the generic code 764 * in firewire_output gives the packet to bpf before 765 * it adds the link-level encapsulation. 766 */ 767 768 /* 769 * Put the mbuf in the xfer early in case we hit an 770 * error case below - fwip_output_callback will free 771 * the mbuf. 772 */ 773 xfer->mbuf = m; 774 775 /* 776 * We use the arp result (if any) to add a suitable firewire 777 * packet header before handing off to the bus. 778 */ 779 fp = &xfer->send.hdr; 780 nodeid = FWLOCALBUS | fc->nodeid; 781 if ((m->m_flags & M_BCAST) || !destfw) { 782 /* 783 * Broadcast packets are sent as GASP packets with 784 * specifier ID 0x00005e, version 1 on the broadcast 785 * channel. To be conservative, we send at the 786 * slowest possible speed. 787 */ 788 uint32_t *p; 789 790 M_PREPEND(m, 2*sizeof(uint32_t), M_DONTWAIT); 791 p = mtod(m, uint32_t *); 792 fp->mode.stream.len = m->m_pkthdr.len; 793 fp->mode.stream.chtag = broadcast_channel; 794 fp->mode.stream.tcode = FWTCODE_STREAM; 795 fp->mode.stream.sy = 0; 796 xfer->send.spd = 0; 797 p[0] = htonl(nodeid << 16); 798 p[1] = htonl((0x5e << 24) | 1); 799 } else { 800 /* 801 * Unicast packets are sent as block writes to the 802 * target's unicast fifo address. If we can't 803 * find the node address, we just give up. We 804 * could broadcast it but that might overflow 805 * the packet size limitations due to the 806 * extra GASP header. Note: the hardware 807 * address is stored in network byte order to 808 * make life easier for ARP. 809 */ 810 struct fw_device *fd; 811 struct fw_eui64 eui; 812 813 eui.hi = ntohl(destfw->sender_unique_ID_hi); 814 eui.lo = ntohl(destfw->sender_unique_ID_lo); 815 if (fwip->last_dest.hi != eui.hi || 816 fwip->last_dest.lo != eui.lo) { 817 fd = fw_noderesolve_eui64(fc, &eui); 818 if (!fd) { 819 /* error */ 820 ifp->if_oerrors ++; 821 /* XXX set error code */ 822 fwip_output_callback(xfer); 823 continue; 824 825 } 826 fwip->last_hdr.mode.wreqb.dst = FWLOCALBUS | fd->dst; 827 fwip->last_hdr.mode.wreqb.tlrt = 0; 828 fwip->last_hdr.mode.wreqb.tcode = FWTCODE_WREQB; 829 fwip->last_hdr.mode.wreqb.pri = 0; 830 fwip->last_hdr.mode.wreqb.src = nodeid; 831 fwip->last_hdr.mode.wreqb.dest_hi = 832 ntohs(destfw->sender_unicast_FIFO_hi); 833 fwip->last_hdr.mode.wreqb.dest_lo = 834 ntohl(destfw->sender_unicast_FIFO_lo); 835 fwip->last_hdr.mode.wreqb.extcode = 0; 836 fwip->last_dest = eui; 837 } 838 839 fp->mode.wreqb = fwip->last_hdr.mode.wreqb; 840 fp->mode.wreqb.len = m->m_pkthdr.len; 841 xfer->send.spd = min(destfw->sspd, fc->speed); 842 } 843 844 xfer->send.pay_len = m->m_pkthdr.len; 845 846 error = fw_asyreq(fc, -1, xfer); 847 if (error == EAGAIN) { 848 /* 849 * We ran out of tlabels - requeue the packet 850 * for later transmission. 851 */ 852 xfer->mbuf = 0; 853 FWIP_LOCK(fwip); 854 STAILQ_INSERT_TAIL(&fwip->xferlist, xfer, link); 855 FWIP_UNLOCK(fwip); 856 IF_PREPEND(&ifp->if_snd, m); 857 break; 858 } 859 if (error) { 860 /* error */ 861 ifp->if_oerrors ++; 862 /* XXX set error code */ 863 fwip_output_callback(xfer); 864 continue; 865 } else { 866 ifp->if_opackets ++; 867 i++; 868 } 869 } 870 #if 0 871 if (i > 1) 872 printf("%d queued\n", i); 873 #endif 874 if (i > 0) 875 xferq->start(fc); 876 } 877 878 static void 879 fwip_start_send (void *arg, int count) 880 { 881 struct fwip_softc *fwip = arg; 882 883 fwip->fd.fc->atq->start(fwip->fd.fc); 884 } 885 886 /* Async. stream output */ 887 static void 888 fwip_stream_input(struct fw_xferq *xferq) 889 { 890 struct mbuf *m, *m0; 891 struct m_tag *mtag; 892 struct ifnet *ifp; 893 struct fwip_softc *fwip; 894 struct fw_bulkxfer *sxfer; 895 struct fw_pkt *fp; 896 uint16_t src; 897 uint32_t *p; 898 899 fwip = (struct fwip_softc *)xferq->sc; 900 ifp = fwip->fw_softc.fwip_ifp; 901 while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 902 STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 903 fp = mtod(sxfer->mbuf, struct fw_pkt *); 904 if (fwip->fd.fc->irx_post != NULL) 905 fwip->fd.fc->irx_post(fwip->fd.fc, fp->mode.ld); 906 m = sxfer->mbuf; 907 908 /* insert new rbuf */ 909 sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 910 if (m0 != NULL) { 911 m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 912 STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 913 } else 914 printf("fwip_as_input: m_getcl failed\n"); 915 916 /* 917 * We must have a GASP header - leave the 918 * encapsulation sanity checks to the generic 919 * code. Remeber that we also have the firewire async 920 * stream header even though that isn't accounted for 921 * in mode.stream.len. 922 */ 923 if (sxfer->resp != 0 || fp->mode.stream.len < 924 2*sizeof(uint32_t)) { 925 m_freem(m); 926 ifp->if_ierrors ++; 927 continue; 928 } 929 m->m_len = m->m_pkthdr.len = fp->mode.stream.len 930 + sizeof(fp->mode.stream); 931 932 /* 933 * If we received the packet on the broadcast channel, 934 * mark it as broadcast, otherwise we assume it must 935 * be multicast. 936 */ 937 if (fp->mode.stream.chtag == broadcast_channel) 938 m->m_flags |= M_BCAST; 939 else 940 m->m_flags |= M_MCAST; 941 942 /* 943 * Make sure we recognise the GASP specifier and 944 * version. 945 */ 946 p = mtod(m, uint32_t *); 947 if ((((ntohl(p[1]) & 0xffff) << 8) | ntohl(p[2]) >> 24) != 0x00005e 948 || (ntohl(p[2]) & 0xffffff) != 1) { 949 FWIPDEBUG(ifp, "Unrecognised GASP header %#08x %#08x\n", 950 ntohl(p[1]), ntohl(p[2])); 951 m_freem(m); 952 ifp->if_ierrors ++; 953 continue; 954 } 955 956 /* 957 * Record the sender ID for possible BPF usage. 958 */ 959 src = ntohl(p[1]) >> 16; 960 if (bpf_peers_present(ifp->if_bpf)) { 961 mtag = m_tag_alloc(MTAG_FIREWIRE, 962 MTAG_FIREWIRE_SENDER_EUID, 963 2*sizeof(uint32_t), M_NOWAIT); 964 if (mtag) { 965 /* bpf wants it in network byte order */ 966 struct fw_device *fd; 967 uint32_t *p2 = (uint32_t *) (mtag + 1); 968 fd = fw_noderesolve_nodeid(fwip->fd.fc, 969 src & 0x3f); 970 if (fd) { 971 p2[0] = htonl(fd->eui.hi); 972 p2[1] = htonl(fd->eui.lo); 973 } else { 974 p2[0] = 0; 975 p2[1] = 0; 976 } 977 m_tag_prepend(m, mtag); 978 } 979 } 980 981 /* 982 * Trim off the GASP header 983 */ 984 m_adj(m, 3*sizeof(uint32_t)); 985 m->m_pkthdr.rcvif = ifp; 986 FIREWIRE_INPUT(ifp, m, src); 987 ifp->if_ipackets ++; 988 } 989 if (STAILQ_FIRST(&xferq->stfree) != NULL) 990 fwip->fd.fc->irx_enable(fwip->fd.fc, fwip->dma_ch); 991 } 992 993 static inline void 994 fwip_unicast_input_recycle(struct fwip_softc *fwip, struct fw_xfer *xfer) 995 { 996 struct mbuf *m; 997 998 /* 999 * We have finished with a unicast xfer. Allocate a new 1000 * cluster and stick it on the back of the input queue. 1001 */ 1002 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 1003 if (m == NULL) 1004 printf("fwip_unicast_input_recycle: m_getcl failed\n"); 1005 xfer->mbuf = m; 1006 xfer->recv.payload = mtod(m, uint32_t *); 1007 xfer->recv.pay_len = MCLBYTES; 1008 xfer->mbuf = m; 1009 STAILQ_INSERT_TAIL(&fwip->fwb.xferlist, xfer, link); 1010 } 1011 1012 static void 1013 fwip_unicast_input(struct fw_xfer *xfer) 1014 { 1015 uint64_t address; 1016 struct mbuf *m; 1017 struct m_tag *mtag; 1018 struct ifnet *ifp; 1019 struct fwip_softc *fwip; 1020 struct fw_pkt *fp; 1021 //struct fw_pkt *sfp; 1022 int rtcode; 1023 1024 fwip = (struct fwip_softc *)xfer->sc; 1025 ifp = fwip->fw_softc.fwip_ifp; 1026 m = xfer->mbuf; 1027 xfer->mbuf = 0; 1028 fp = &xfer->recv.hdr; 1029 1030 /* 1031 * Check the fifo address - we only accept addresses of 1032 * exactly INET_FIFO. 1033 */ 1034 address = ((uint64_t)fp->mode.wreqb.dest_hi << 32) 1035 | fp->mode.wreqb.dest_lo; 1036 if (fp->mode.wreqb.tcode != FWTCODE_WREQB) { 1037 rtcode = FWRCODE_ER_TYPE; 1038 } else if (address != INET_FIFO) { 1039 rtcode = FWRCODE_ER_ADDR; 1040 } else { 1041 rtcode = FWRCODE_COMPLETE; 1042 } 1043 1044 /* 1045 * Pick up a new mbuf and stick it on the back of the receive 1046 * queue. 1047 */ 1048 fwip_unicast_input_recycle(fwip, xfer); 1049 1050 /* 1051 * If we've already rejected the packet, give up now. 1052 */ 1053 if (rtcode != FWRCODE_COMPLETE) { 1054 m_freem(m); 1055 ifp->if_ierrors ++; 1056 return; 1057 } 1058 1059 if (bpf_peers_present(ifp->if_bpf)) { 1060 /* 1061 * Record the sender ID for possible BPF usage. 1062 */ 1063 mtag = m_tag_alloc(MTAG_FIREWIRE, MTAG_FIREWIRE_SENDER_EUID, 1064 2*sizeof(uint32_t), M_NOWAIT); 1065 if (mtag) { 1066 /* bpf wants it in network byte order */ 1067 struct fw_device *fd; 1068 uint32_t *p = (uint32_t *) (mtag + 1); 1069 fd = fw_noderesolve_nodeid(fwip->fd.fc, 1070 fp->mode.wreqb.src & 0x3f); 1071 if (fd) { 1072 p[0] = htonl(fd->eui.hi); 1073 p[1] = htonl(fd->eui.lo); 1074 } else { 1075 p[0] = 0; 1076 p[1] = 0; 1077 } 1078 m_tag_prepend(m, mtag); 1079 } 1080 } 1081 1082 /* 1083 * Hand off to the generic encapsulation code. We don't use 1084 * ifp->if_input so that we can pass the source nodeid as an 1085 * argument to facilitate link-level fragment reassembly. 1086 */ 1087 m->m_len = m->m_pkthdr.len = fp->mode.wreqb.len; 1088 m->m_pkthdr.rcvif = ifp; 1089 FIREWIRE_INPUT(ifp, m, fp->mode.wreqb.src); 1090 ifp->if_ipackets ++; 1091 } 1092 1093 #if defined(__FreeBSD__) 1094 static devclass_t fwip_devclass; 1095 1096 static device_method_t fwip_methods[] = { 1097 /* device interface */ 1098 DEVMETHOD(device_identify, fwip_identify), 1099 DEVMETHOD(device_probe, fwip_probe), 1100 DEVMETHOD(device_attach, fwip_attach), 1101 DEVMETHOD(device_detach, fwip_detach), 1102 { 0, 0 } 1103 }; 1104 1105 static driver_t fwip_driver = { 1106 "fwip", 1107 fwip_methods, 1108 sizeof(struct fwip_softc), 1109 }; 1110 1111 1112 #ifdef __DragonFly__ 1113 DECLARE_DUMMY_MODULE(fwip); 1114 #endif 1115 DRIVER_MODULE(fwip, firewire, fwip_driver, fwip_devclass, 0, 0); 1116 MODULE_VERSION(fwip, 1); 1117 MODULE_DEPEND(fwip, firewire, 1, 1, 1); 1118 #elif defined(__NetBSD__) 1119 CFATTACH_DECL(fwip, sizeof (struct fwip_softc), 1120 fwipmatch, fwipattach, fwipdetach, NULL); 1121 #endif 1122
Indexes created Tue Sep 23 23:09:58 GMT 2025