if_fwe.c revision 117732
1/* 2 * Copyright (c) 2002-2003 3 * Hidetoshi Shimokawa. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * 16 * This product includes software developed by Hidetoshi Shimokawa. 17 * 18 * 4. Neither the name of the author nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $FreeBSD: head/sys/dev/firewire/if_fwe.c 117732 2003-07-18 14:31:16Z simokawa $ 35 */ 36 37#include "opt_inet.h" 38 39#include <sys/param.h> 40#include <sys/kernel.h> 41#include <sys/malloc.h> 42#include <sys/mbuf.h> 43#include <sys/socket.h> 44#include <sys/sockio.h> 45#include <sys/sysctl.h> 46#include <sys/systm.h> 47#include <sys/module.h> 48#include <sys/bus.h> 49#include <machine/bus.h> 50 51#include <net/bpf.h> 52#include <net/ethernet.h> 53#include <net/if.h> 54#include <net/if_arp.h> 55#include <net/if_vlan_var.h> 56 57#include <dev/firewire/firewire.h> 58#include <dev/firewire/firewirereg.h> 59#include <dev/firewire/if_fwevar.h> 60 61#define FWEDEBUG if (fwedebug) printf 62#define TX_MAX_QUEUE (FWMAXQUEUE - 1) 63#define RX_MAX_QUEUE FWMAXQUEUE 64 65/* network interface */ 66static void fwe_start __P((struct ifnet *)); 67static int fwe_ioctl __P((struct ifnet *, u_long, caddr_t)); 68static void fwe_init __P((void *)); 69 70static void fwe_output_callback __P((struct fw_xfer *)); 71static void fwe_as_output __P((struct fwe_softc *, struct ifnet *)); 72static void fwe_as_input __P((struct fw_xferq *)); 73 74static int fwedebug = 0; 75static int stream_ch = 1; 76static int tx_speed = 2; 77 78MALLOC_DEFINE(M_FWE, "if_fwe", "Ethernet over FireWire interface"); 79SYSCTL_INT(_debug, OID_AUTO, if_fwe_debug, CTLFLAG_RW, &fwedebug, 0, ""); 80SYSCTL_DECL(_hw_firewire); 81SYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD, 0, 82 "Ethernet Emulation Subsystem"); 83SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, stream_ch, CTLFLAG_RW, &stream_ch, 0, 84 "Stream channel to use"); 85SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, tx_speed, CTLFLAG_RW, &tx_speed, 0, 86 "Transmission Speed"); 87 88#ifdef DEVICE_POLLING 89#define FWE_POLL_REGISTER(func, fwe, ifp) \ 90 if (ether_poll_register(func, ifp)) { \ 91 struct firewire_comm *fc = (fwe)->fd.fc; \ 92 fc->set_intr(fc, 0); \ 93 } 94 95#define FWE_POLL_DEREGISTER(fwe, ifp) \ 96 do { \ 97 struct firewire_comm *fc = (fwe)->fd.fc; \ 98 ether_poll_deregister(ifp); \ 99 fc->set_intr(fc, 1); \ 100 } while(0) \ 101 102static poll_handler_t fwe_poll; 103 104static void 105fwe_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 106{ 107 struct fwe_softc *fwe; 108 struct firewire_comm *fc; 109 110 fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 111 fc = fwe->fd.fc; 112 if (cmd == POLL_DEREGISTER) { 113 /* enable interrupts */ 114 fc->set_intr(fc, 1); 115 return; 116 } 117 fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count); 118} 119#else 120#define FWE_POLL_REGISTER(func, fwe, ifp) 121#define FWE_POLL_DEREGISTER(fwe, ifp) 122#endif 123static void 124fwe_identify(driver_t *driver, device_t parent) 125{ 126 BUS_ADD_CHILD(parent, 0, "if_fwe", device_get_unit(parent)); 127} 128 129static int 130fwe_probe(device_t dev) 131{ 132 device_t pa; 133 134 pa = device_get_parent(dev); 135 if(device_get_unit(dev) != device_get_unit(pa)){ 136 return(ENXIO); 137 } 138 139 device_set_desc(dev, "Ethernet over FireWire"); 140 return (0); 141} 142 143static int 144fwe_attach(device_t dev) 145{ 146 struct fwe_softc *fwe; 147 struct ifnet *ifp; 148 int unit, s; 149 u_char *eaddr; 150 struct fw_eui64 *eui; 151 152 fwe = ((struct fwe_softc *)device_get_softc(dev)); 153 unit = device_get_unit(dev); 154 155 bzero(fwe, sizeof(struct fwe_softc)); 156 /* XXX */ 157 fwe->stream_ch = stream_ch; 158 fwe->dma_ch = -1; 159 160 fwe->fd.fc = device_get_ivars(dev); 161 fwe->fd.dev = dev; 162 fwe->fd.post_explore = NULL; 163 fwe->eth_softc.fwe = fwe; 164 165 fwe->pkt_hdr.mode.stream.tcode = FWTCODE_STREAM; 166 fwe->pkt_hdr.mode.stream.sy = 0; 167 fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 168 169 /* generate fake MAC address: first and last 3bytes from eui64 */ 170#define LOCAL (0x02) 171#define GROUP (0x01) 172 eaddr = &fwe->eth_softc.arpcom.ac_enaddr[0]; 173 174 eui = &fwe->fd.fc->eui; 175 eaddr[0] = (FW_EUI64_BYTE(eui, 0) | LOCAL) & ~GROUP; 176 eaddr[1] = FW_EUI64_BYTE(eui, 1); 177 eaddr[2] = FW_EUI64_BYTE(eui, 2); 178 eaddr[3] = FW_EUI64_BYTE(eui, 5); 179 eaddr[4] = FW_EUI64_BYTE(eui, 6); 180 eaddr[5] = FW_EUI64_BYTE(eui, 7); 181 printf("if_fwe%d: Fake Ethernet address: " 182 "%02x:%02x:%02x:%02x:%02x:%02x\n", unit, 183 eaddr[0], eaddr[1], eaddr[2], eaddr[3], eaddr[4], eaddr[5]); 184 185 /* fill the rest and attach interface */ 186 ifp = &fwe->fwe_if; 187 ifp->if_softc = &fwe->eth_softc; 188 189 ifp->if_unit = unit; 190 ifp->if_name = "fwe"; 191 ifp->if_init = fwe_init; 192 ifp->if_output = ether_output; 193 ifp->if_start = fwe_start; 194 ifp->if_ioctl = fwe_ioctl; 195 ifp->if_mtu = ETHERMTU; 196 ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST); 197 ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE; 198 199 s = splimp(); 200#if __FreeBSD_version >= 500000 201 ether_ifattach(ifp, eaddr); 202#else 203 ether_ifattach(ifp, 1); 204#endif 205 splx(s); 206 207 /* Tell the upper layer(s) we support long frames. */ 208 ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 209#if __FreeBSD_version >= 500000 210 ifp->if_capabilities |= IFCAP_VLAN_MTU; 211#endif 212 213 214 FWEDEBUG("interface %s%d created.\n", ifp->if_name, ifp->if_unit); 215 return 0; 216} 217 218static void 219fwe_stop(struct fwe_softc *fwe) 220{ 221 struct firewire_comm *fc; 222 struct fw_xferq *xferq; 223 struct ifnet *ifp = &fwe->fwe_if; 224 struct fw_xfer *xfer, *next; 225 int i; 226 227 fc = fwe->fd.fc; 228 229 FWE_POLL_DEREGISTER(fwe, ifp); 230 231 if (fwe->dma_ch >= 0) { 232 xferq = fc->ir[fwe->dma_ch]; 233 234 if (xferq->flag & FWXFERQ_RUNNING) 235 fc->irx_disable(fc, fwe->dma_ch); 236 xferq->flag &= 237 ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 238 FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 239 xferq->hand = NULL; 240 241 for (i = 0; i < xferq->bnchunk; i ++) 242 m_freem(xferq->bulkxfer[i].mbuf); 243 free(xferq->bulkxfer, M_FWE); 244 245 for (xfer = STAILQ_FIRST(&fwe->xferlist); xfer != NULL; 246 xfer = next) { 247 next = STAILQ_NEXT(xfer, link); 248 fw_xfer_free(xfer); 249 } 250 STAILQ_INIT(&fwe->xferlist); 251 252 xferq->bulkxfer = NULL; 253 fwe->dma_ch = -1; 254 } 255 256 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 257} 258 259static int 260fwe_detach(device_t dev) 261{ 262 struct fwe_softc *fwe; 263 int s; 264 265 fwe = (struct fwe_softc *)device_get_softc(dev); 266 s = splimp(); 267 268 fwe_stop(fwe); 269#if __FreeBSD_version >= 500000 270 ether_ifdetach(&fwe->fwe_if); 271#else 272 ether_ifdetach(&fwe->fwe_if, 1); 273#endif 274 275 splx(s); 276 return 0; 277} 278 279static void 280fwe_init(void *arg) 281{ 282 struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe; 283 struct firewire_comm *fc; 284 struct ifnet *ifp = &fwe->fwe_if; 285 struct fw_xferq *xferq; 286 struct fw_xfer *xfer; 287 struct mbuf *m; 288 int i; 289 290 FWEDEBUG("initializing %s%d\n", ifp->if_name, ifp->if_unit); 291 292 /* XXX keep promiscoud mode */ 293 ifp->if_flags |= IFF_PROMISC; 294 295 fc = fwe->fd.fc; 296#define START 0 297 if (fwe->dma_ch < 0) { 298 xferq = NULL; 299 for (i = START; i < fc->nisodma; i ++) { 300 xferq = fc->ir[i]; 301 if ((xferq->flag & FWXFERQ_OPEN) == 0) 302 break; 303 } 304 305 if (xferq == NULL) { 306 printf("no free dma channel\n"); 307 return; 308 } 309 fwe->dma_ch = i; 310 fwe->stream_ch = stream_ch; 311 fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 312 /* allocate DMA channel and init packet mode */ 313 xferq->flag |= FWXFERQ_OPEN | FWXFERQ_EXTBUF | 314 FWXFERQ_HANDLER | FWXFERQ_STREAM; 315 xferq->flag &= ~0xff; 316 xferq->flag |= fwe->stream_ch & 0xff; 317 /* register fwe_input handler */ 318 xferq->sc = (caddr_t) fwe; 319 xferq->hand = fwe_as_input; 320 xferq->bnchunk = RX_MAX_QUEUE; 321 xferq->bnpacket = 1; 322 xferq->psize = MCLBYTES; 323 xferq->queued = 0; 324 xferq->buf = NULL; 325 xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 326 sizeof(struct fw_bulkxfer) * xferq->bnchunk, 327 M_FWE, M_WAITOK); 328 if (xferq->bulkxfer == NULL) { 329 printf("if_fwe: malloc failed\n"); 330 return; 331 } 332 STAILQ_INIT(&xferq->stvalid); 333 STAILQ_INIT(&xferq->stfree); 334 STAILQ_INIT(&xferq->stdma); 335 xferq->stproc = NULL; 336 for (i = 0; i < xferq->bnchunk; i ++) { 337 m = 338#if __FreeBSD_version >= 500000 339 m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 340#else 341 m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 342#endif 343 xferq->bulkxfer[i].mbuf = m; 344 if (m != NULL) { 345 m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 346 STAILQ_INSERT_TAIL(&xferq->stfree, 347 &xferq->bulkxfer[i], link); 348 } else 349 printf("fwe_as_input: m_getcl failed\n"); 350 } 351 STAILQ_INIT(&fwe->xferlist); 352 for (i = 0; i < TX_MAX_QUEUE; i++) { 353 xfer = fw_xfer_alloc(M_FWE); 354 if (xfer == NULL) 355 break; 356 xfer->spd = tx_speed; 357 xfer->fc = fwe->fd.fc; 358 xfer->retry_req = fw_asybusy; 359 xfer->sc = (caddr_t)fwe; 360 xfer->act.hand = fwe_output_callback; 361 STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 362 } 363 } else 364 xferq = fc->ir[fwe->dma_ch]; 365 366 367 /* start dma */ 368 if ((xferq->flag & FWXFERQ_RUNNING) == 0) 369 fc->irx_enable(fc, fwe->dma_ch); 370 371 ifp->if_flags |= IFF_RUNNING; 372 ifp->if_flags &= ~IFF_OACTIVE; 373 374 FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 375#if 0 376 /* attempt to start output */ 377 fwe_start(ifp); 378#endif 379} 380 381 382static int 383fwe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 384{ 385 struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 386 struct ifstat *ifs = NULL; 387 int s, error, len; 388 389 switch (cmd) { 390 case SIOCSIFFLAGS: 391 s = splimp(); 392 if (ifp->if_flags & IFF_UP) { 393 if (!(ifp->if_flags & IFF_RUNNING)) 394 fwe_init(&fwe->eth_softc); 395 } else { 396 if (ifp->if_flags & IFF_RUNNING) 397 fwe_stop(fwe); 398 } 399 /* XXX keep promiscoud mode */ 400 ifp->if_flags |= IFF_PROMISC; 401 splx(s); 402 break; 403 case SIOCADDMULTI: 404 case SIOCDELMULTI: 405 break; 406 407 case SIOCGIFSTATUS: 408 s = splimp(); 409 ifs = (struct ifstat *)data; 410 len = strlen(ifs->ascii); 411 if (len < sizeof(ifs->ascii)) 412 snprintf(ifs->ascii + len, 413 sizeof(ifs->ascii) - len, 414 "\tch %d dma %d\n", 415 fwe->stream_ch, fwe->dma_ch); 416 splx(s); 417 break; 418#if __FreeBSD_version >= 500000 419 default: 420#else 421 case SIOCSIFADDR: 422 case SIOCGIFADDR: 423 case SIOCSIFMTU: 424#endif 425 s = splimp(); 426 error = ether_ioctl(ifp, cmd, data); 427 splx(s); 428 return (error); 429#if __FreeBSD_version < 500000 430 default: 431 return (EINVAL); 432#endif 433 } 434 435 return (0); 436} 437 438static void 439fwe_output_callback(struct fw_xfer *xfer) 440{ 441 struct fwe_softc *fwe; 442 struct ifnet *ifp; 443 int s; 444 445 fwe = (struct fwe_softc *)xfer->sc; 446 ifp = &fwe->fwe_if; 447 /* XXX error check */ 448 FWEDEBUG("resp = %d\n", xfer->resp); 449 if (xfer->resp != 0) 450 ifp->if_oerrors ++; 451 452 m_freem(xfer->mbuf); 453 xfer->send.buf = NULL; 454 fw_xfer_unload(xfer); 455 456 s = splimp(); 457 STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 458 splx(s); 459 460 /* for queue full */ 461 if (ifp->if_snd.ifq_head != NULL) 462 fwe_start(ifp); 463} 464 465static void 466fwe_start(struct ifnet *ifp) 467{ 468 struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 469 int s; 470 471 FWEDEBUG("%s%d starting\n", ifp->if_name, ifp->if_unit); 472 473 if (fwe->dma_ch < 0) { 474 struct mbuf *m = NULL; 475 476 FWEDEBUG("%s%d not ready.\n", ifp->if_name, ifp->if_unit); 477 478 s = splimp(); 479 do { 480 IF_DEQUEUE(&ifp->if_snd, m); 481 if (m != NULL) 482 m_freem(m); 483 ifp->if_oerrors ++; 484 } while (m != NULL); 485 splx(s); 486 487 return; 488 } 489 490 s = splimp(); 491 ifp->if_flags |= IFF_OACTIVE; 492 493 if (ifp->if_snd.ifq_len != 0) 494 fwe_as_output(fwe, ifp); 495 496 ifp->if_flags &= ~IFF_OACTIVE; 497 splx(s); 498} 499 500#define HDR_LEN 4 501#ifndef ETHER_ALIGN 502#define ETHER_ALIGN 2 503#endif 504/* Async. stream output */ 505static void 506fwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp) 507{ 508 struct mbuf *m; 509 struct fw_xfer *xfer; 510 struct fw_xferq *xferq; 511 struct fw_pkt *fp; 512 int i = 0; 513 514 xfer = NULL; 515 xferq = fwe->fd.fc->atq; 516 while (xferq->queued < xferq->maxq - 1) { 517 xfer = STAILQ_FIRST(&fwe->xferlist); 518 if (xfer == NULL) { 519 printf("if_fwe: lack of xfer\n"); 520 return; 521 } 522 IF_DEQUEUE(&ifp->if_snd, m); 523 if (m == NULL) 524 break; 525 STAILQ_REMOVE_HEAD(&fwe->xferlist, link); 526#if __FreeBSD_version >= 500000 527 BPF_MTAP(ifp, m); 528#else 529 if (ifp->if_bpf != NULL) 530 bpf_mtap(ifp, m); 531#endif 532 533 /* keep ip packet alignment for alpha */ 534 M_PREPEND(m, ETHER_ALIGN, M_DONTWAIT); 535 fp = (struct fw_pkt *)&xfer->dst; /* XXX */ 536 xfer->dst = *((int32_t *)&fwe->pkt_hdr); 537 fp->mode.stream.len = m->m_pkthdr.len; 538 xfer->send.buf = (caddr_t) fp; 539 xfer->mbuf = m; 540 xfer->send.len = m->m_pkthdr.len + HDR_LEN; 541 542 if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) { 543 /* error */ 544 ifp->if_oerrors ++; 545 /* XXX set error code */ 546 fwe_output_callback(xfer); 547 } else { 548 ifp->if_opackets ++; 549 i++; 550 } 551 } 552#if 0 553 if (i > 1) 554 printf("%d queued\n", i); 555#endif 556 if (i > 0) 557 xferq->start(fwe->fd.fc); 558} 559 560/* Async. stream output */ 561static void 562fwe_as_input(struct fw_xferq *xferq) 563{ 564 struct mbuf *m, *m0; 565 struct ifnet *ifp; 566 struct fwe_softc *fwe; 567 struct fw_bulkxfer *sxfer; 568 struct fw_pkt *fp; 569 u_char *c; 570#if __FreeBSD_version < 500000 571 struct ether_header *eh; 572#endif 573 574 fwe = (struct fwe_softc *)xferq->sc; 575 ifp = &fwe->fwe_if; 576#if 0 577 FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 578#endif 579 while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 580 STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 581 if (sxfer->resp != 0) 582 ifp->if_ierrors ++; 583 fp = mtod(sxfer->mbuf, struct fw_pkt *); 584 /* XXX */ 585 if (fwe->fd.fc->irx_post != NULL) 586 fwe->fd.fc->irx_post(fwe->fd.fc, fp->mode.ld); 587 m = sxfer->mbuf; 588 589 /* insert rbuf */ 590 sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 591 if (m0 != NULL) { 592 m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 593 STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 594 } else 595 printf("fwe_as_input: m_getcl failed\n"); 596 597 m->m_data += HDR_LEN + ETHER_ALIGN; 598 c = mtod(m, char *); 599#if __FreeBSD_version < 500000 600 eh = (struct ether_header *)c; 601 m->m_data += sizeof(struct ether_header); 602#endif 603 m->m_len = m->m_pkthdr.len = 604 fp->mode.stream.len - ETHER_ALIGN; 605 m->m_pkthdr.rcvif = ifp; 606#if 0 607 FWEDEBUG("%02x %02x %02x %02x %02x %02x\n" 608 "%02x %02x %02x %02x %02x %02x\n" 609 "%02x %02x %02x %02x\n" 610 "%02x %02x %02x %02x\n" 611 "%02x %02x %02x %02x\n" 612 "%02x %02x %02x %02x\n", 613 c[0], c[1], c[2], c[3], c[4], c[5], 614 c[6], c[7], c[8], c[9], c[10], c[11], 615 c[12], c[13], c[14], c[15], 616 c[16], c[17], c[18], c[19], 617 c[20], c[21], c[22], c[23], 618 c[20], c[21], c[22], c[23] 619 ); 620#endif 621#if __FreeBSD_version >= 500000 622 (*ifp->if_input)(ifp, m); 623#else 624 ether_input(ifp, eh, m); 625#endif 626 ifp->if_ipackets ++; 627 } 628 if (STAILQ_FIRST(&xferq->stfree) != NULL) 629 fwe->fd.fc->irx_enable(fwe->fd.fc, fwe->dma_ch); 630} 631 632 633static devclass_t fwe_devclass; 634 635static device_method_t fwe_methods[] = { 636 /* device interface */ 637 DEVMETHOD(device_identify, fwe_identify), 638 DEVMETHOD(device_probe, fwe_probe), 639 DEVMETHOD(device_attach, fwe_attach), 640 DEVMETHOD(device_detach, fwe_detach), 641 { 0, 0 } 642}; 643 644static driver_t fwe_driver = { 645 "if_fwe", 646 fwe_methods, 647 sizeof(struct fwe_softc), 648}; 649 650 651DRIVER_MODULE(fwe, firewire, fwe_driver, fwe_devclass, 0, 0); 652MODULE_VERSION(fwe, 1); 653MODULE_DEPEND(fwe, firewire, 1, 1, 1); 654