if_fwe.c revision 113584
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 113584 2003-04-17 03:38:03Z simokawa $ 35 */ 36 37#include "opt_inet.h" 38 39#include <sys/param.h> 40#include <sys/conf.h> 41#include <sys/kernel.h> 42#include <sys/malloc.h> 43#include <sys/mbuf.h> 44#include <sys/socket.h> 45#include <sys/sockio.h> 46#include <sys/sysctl.h> 47#include <sys/systm.h> 48#include <sys/module.h> 49#include <sys/bus.h> 50#include <machine/bus.h> 51 52#include <net/bpf.h> 53#include <net/ethernet.h> 54#include <net/if.h> 55#include <net/if_arp.h> 56#include <net/if_vlan_var.h> 57#include <net/route.h> 58 59#include <netinet/in.h> 60 61#include <dev/firewire/firewire.h> 62#include <dev/firewire/firewirereg.h> 63#include <dev/firewire/if_fwevar.h> 64 65#define FWEDEBUG if (fwedebug) printf 66#define TX_MAX_QUEUE (FWMAXQUEUE - 1) 67#define RX_MAX_QUEUE FWMAXQUEUE 68 69/* network interface */ 70static void fwe_start __P((struct ifnet *)); 71static int fwe_ioctl __P((struct ifnet *, u_long, caddr_t)); 72static void fwe_init __P((void *)); 73 74static void fwe_output_callback __P((struct fw_xfer *)); 75static void fwe_as_output __P((struct fwe_softc *, struct ifnet *)); 76static void fwe_as_input __P((struct fw_xferq *)); 77 78static int fwedebug = 0; 79static int stream_ch = 1; 80 81MALLOC_DEFINE(M_FWE, "if_fwe", "Ethernet over FireWire interface"); 82SYSCTL_INT(_debug, OID_AUTO, if_fwe_debug, CTLFLAG_RW, &fwedebug, 0, ""); 83SYSCTL_DECL(_hw_firewire); 84SYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD, 0, 85 "Ethernet Emulation Subsystem"); 86SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, stream_ch, CTLFLAG_RW, &stream_ch, 0, 87 "Stream channel to use"); 88 89#ifdef DEVICE_POLLING 90#define FWE_POLL_REGISTER(func, fwe, ifp) \ 91 if (ether_poll_register(func, ifp)) { \ 92 struct firewire_comm *fc = (fwe)->fd.fc; \ 93 fc->set_intr(fc, 0); \ 94 } 95 96#define FWE_POLL_DEREGISTER(fwe, ifp) \ 97 do { \ 98 struct firewire_comm *fc = (fwe)->fd.fc; \ 99 ether_poll_deregister(ifp); \ 100 fc->set_intr(fc, 1); \ 101 } while(0) \ 102 103static poll_handler_t fwe_poll; 104 105static void 106fwe_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 107{ 108 struct fwe_softc *fwe; 109 struct firewire_comm *fc; 110 111 fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 112 fc = fwe->fd.fc; 113 if (cmd == POLL_DEREGISTER) { 114 /* enable interrupts */ 115 fc->set_intr(fc, 1); 116 return; 117 } 118 fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count); 119} 120#else 121#define FWE_POLL_REGISTER(func, fwe, ifp) 122#define FWE_POLL_DEREGISTER(fwe, ifp) 123#endif 124static void 125fwe_identify(driver_t *driver, device_t parent) 126{ 127 BUS_ADD_CHILD(parent, 0, "if_fwe", device_get_unit(parent)); 128} 129 130static int 131fwe_probe(device_t dev) 132{ 133 device_t pa; 134 135 pa = device_get_parent(dev); 136 if(device_get_unit(dev) != device_get_unit(pa)){ 137 return(ENXIO); 138 } 139 140 device_set_desc(dev, "Ethernet over FireWire"); 141 return (0); 142} 143 144static int 145fwe_attach(device_t dev) 146{ 147 struct fwe_softc *fwe; 148 struct ifnet *ifp; 149 int unit, s; 150 u_char *eaddr; 151 struct fw_eui64 *eui; 152 153 fwe = ((struct fwe_softc *)device_get_softc(dev)); 154 unit = device_get_unit(dev); 155 156 bzero(fwe, sizeof(struct fwe_softc)); 157 /* XXX */ 158 fwe->stream_ch = stream_ch; 159 fwe->dma_ch = -1; 160 161 fwe->fd.fc = device_get_ivars(dev); 162 fwe->fd.dev = dev; 163 fwe->fd.post_explore = NULL; 164 fwe->eth_softc.fwe = fwe; 165 166 fwe->pkt_hdr.mode.stream.tcode = FWTCODE_STREAM; 167 fwe->pkt_hdr.mode.stream.sy = 0; 168 fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 169 170 /* generate fake MAC address: first and last 3bytes from eui64 */ 171#define LOCAL (0x02) 172#define GROUP (0x01) 173 eaddr = &fwe->eth_softc.arpcom.ac_enaddr[0]; 174 175 eui = &fwe->fd.fc->eui; 176 eaddr[0] = (FW_EUI64_BYTE(eui, 0) | LOCAL) & ~GROUP; 177 eaddr[1] = FW_EUI64_BYTE(eui, 1); 178 eaddr[2] = FW_EUI64_BYTE(eui, 2); 179 eaddr[3] = FW_EUI64_BYTE(eui, 5); 180 eaddr[4] = FW_EUI64_BYTE(eui, 6); 181 eaddr[5] = FW_EUI64_BYTE(eui, 7); 182 printf("if_fwe%d: Fake Ethernet address: " 183 "%02x:%02x:%02x:%02x:%02x:%02x\n", unit, 184 eaddr[0], eaddr[1], eaddr[2], eaddr[3], eaddr[4], eaddr[5]); 185 186 /* fill the rest and attach interface */ 187 ifp = &fwe->fwe_if; 188 ifp->if_softc = &fwe->eth_softc; 189 190 ifp->if_unit = unit; 191 ifp->if_name = "fwe"; 192 ifp->if_init = fwe_init; 193 ifp->if_output = ether_output; 194 ifp->if_start = fwe_start; 195 ifp->if_ioctl = fwe_ioctl; 196 ifp->if_mtu = ETHERMTU; 197 ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST); 198 ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE; 199 200 s = splimp(); 201#if __FreeBSD_version >= 500000 202 ether_ifattach(ifp, eaddr); 203#else 204 ether_ifattach(ifp, 1); 205#endif 206 splx(s); 207 208 /* Tell the upper layer(s) we support long frames. */ 209 ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 210#if __FreeBSD_version >= 500000 211 ifp->if_capabilities |= IFCAP_VLAN_MTU; 212#endif 213 214 215 FWEDEBUG("interface %s%d created.\n", ifp->if_name, ifp->if_unit); 216 return 0; 217} 218 219static void 220fwe_stop(struct fwe_softc *fwe) 221{ 222 struct firewire_comm *fc; 223 struct fw_xferq *xferq; 224 struct ifnet *ifp = &fwe->fwe_if; 225 struct fw_xfer *xfer, *next; 226 int i; 227 228 fc = fwe->fd.fc; 229 230 FWE_POLL_DEREGISTER(fwe, ifp); 231 232 if (fwe->dma_ch >= 0) { 233 xferq = fc->ir[fwe->dma_ch]; 234 235 if (xferq->flag & FWXFERQ_RUNNING) 236 fc->irx_disable(fc, fwe->dma_ch); 237 xferq->flag &= 238 ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 239 FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 240 xferq->hand = NULL; 241 242 for (i = 0; i < xferq->bnchunk; i ++) 243 m_freem(xferq->bulkxfer[i].mbuf); 244 free(xferq->bulkxfer, M_FWE); 245 246 for (xfer = STAILQ_FIRST(&fwe->xferlist); xfer != NULL; 247 xfer = next) { 248 next = STAILQ_NEXT(xfer, link); 249 fw_xfer_free(xfer); 250 } 251 STAILQ_INIT(&fwe->xferlist); 252 253 xferq->bulkxfer = NULL; 254 fwe->dma_ch = -1; 255 } 256 257 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 258} 259 260static int 261fwe_detach(device_t dev) 262{ 263 struct fwe_softc *fwe; 264 int s; 265 266 fwe = (struct fwe_softc *)device_get_softc(dev); 267 s = splimp(); 268 269 fwe_stop(fwe); 270#if __FreeBSD_version >= 500000 271 ether_ifdetach(&fwe->fwe_if); 272#else 273 ether_ifdetach(&fwe->fwe_if, 1); 274#endif 275 276 splx(s); 277 return 0; 278} 279 280static void 281fwe_init(void *arg) 282{ 283 struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe; 284 struct firewire_comm *fc; 285 struct ifnet *ifp = &fwe->fwe_if; 286 struct fw_xferq *xferq; 287 struct fw_xfer *xfer; 288 struct mbuf *m; 289 int i; 290 291 FWEDEBUG("initializing %s%d\n", ifp->if_name, ifp->if_unit); 292 293 /* XXX keep promiscoud mode */ 294 ifp->if_flags |= IFF_PROMISC; 295 296 fc = fwe->fd.fc; 297#define START 0 298 if (fwe->dma_ch < 0) { 299 xferq = NULL; 300 for (i = START; i < fc->nisodma; i ++) { 301 xferq = fc->ir[i]; 302 if ((xferq->flag & FWXFERQ_OPEN) == 0) 303 break; 304 } 305 306 if (xferq == NULL) { 307 printf("no free dma channel\n"); 308 return; 309 } 310 fwe->dma_ch = i; 311 fwe->stream_ch = stream_ch; 312 fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 313 /* allocate DMA channel and init packet mode */ 314 xferq->flag |= FWXFERQ_OPEN | FWXFERQ_EXTBUF | 315 FWXFERQ_HANDLER | FWXFERQ_STREAM; 316 xferq->flag &= ~0xff; 317 xferq->flag |= fwe->stream_ch & 0xff; 318 /* register fwe_input handler */ 319 xferq->sc = (caddr_t) fwe; 320 xferq->hand = fwe_as_input; 321 xferq->bnchunk = RX_MAX_QUEUE; 322 xferq->bnpacket = 1; 323 xferq->psize = MCLBYTES; 324 xferq->queued = 0; 325 xferq->buf = NULL; 326 xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 327 sizeof(struct fw_bulkxfer) * xferq->bnchunk, 328 M_FWE, M_WAITOK); 329 if (xferq->bulkxfer == NULL) { 330 printf("if_fwe: malloc failed\n"); 331 return; 332 } 333 STAILQ_INIT(&xferq->stvalid); 334 STAILQ_INIT(&xferq->stfree); 335 STAILQ_INIT(&xferq->stdma); 336 xferq->stproc = NULL; 337 for (i = 0; i < xferq->bnchunk; i ++) { 338 m = 339#if __FreeBSD_version >= 500000 340 m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 341#else 342 m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 343#endif 344 xferq->bulkxfer[i].mbuf = m; 345 if (m != NULL) { 346 m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 347 STAILQ_INSERT_TAIL(&xferq->stfree, 348 &xferq->bulkxfer[i], link); 349 } else 350 printf("fwe_as_input: m_getcl failed\n"); 351 } 352 STAILQ_INIT(&fwe->xferlist); 353 for (i = 0; i < TX_MAX_QUEUE; i++) { 354 xfer = fw_xfer_alloc(M_FWE); 355 if (xfer == NULL) 356 break; 357 xfer->spd = 2; 358 xfer->fc = fwe->fd.fc; 359 xfer->retry_req = fw_asybusy; 360 xfer->sc = (caddr_t)fwe; 361 xfer->act.hand = fwe_output_callback; 362 STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 363 } 364 } else 365 xferq = fc->ir[fwe->dma_ch]; 366 367 368 /* start dma */ 369 if ((xferq->flag & FWXFERQ_RUNNING) == 0) 370 fc->irx_enable(fc, fwe->dma_ch); 371 372 ifp->if_flags |= IFF_RUNNING; 373 ifp->if_flags &= ~IFF_OACTIVE; 374 375 FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 376#if 0 377 /* attempt to start output */ 378 fwe_start(ifp); 379#endif 380} 381 382 383static int 384fwe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 385{ 386 struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 387 struct ifstat *ifs = NULL; 388 int s, error, len; 389 390 switch (cmd) { 391 case SIOCSIFFLAGS: 392 s = splimp(); 393 if (ifp->if_flags & IFF_UP) { 394 if (!(ifp->if_flags & IFF_RUNNING)) 395 fwe_init(&fwe->eth_softc); 396 } else { 397 if (ifp->if_flags & IFF_RUNNING) 398 fwe_stop(fwe); 399 } 400 /* XXX keep promiscoud mode */ 401 ifp->if_flags |= IFF_PROMISC; 402 splx(s); 403 break; 404 case SIOCADDMULTI: 405 case SIOCDELMULTI: 406 break; 407 408 case SIOCGIFSTATUS: 409 s = splimp(); 410 ifs = (struct ifstat *)data; 411 len = strlen(ifs->ascii); 412 if (len < sizeof(ifs->ascii)) 413 snprintf(ifs->ascii + len, 414 sizeof(ifs->ascii) - len, 415 "\tch %d dma %d\n", 416 fwe->stream_ch, fwe->dma_ch); 417 splx(s); 418 break; 419#if __FreeBSD_version >= 500000 420 default: 421#else 422 case SIOCSIFADDR: 423 case SIOCGIFADDR: 424 case SIOCSIFMTU: 425#endif 426 s = splimp(); 427 error = ether_ioctl(ifp, cmd, data); 428 splx(s); 429 return (error); 430#if __FreeBSD_version < 500000 431 default: 432 return (EINVAL); 433#endif 434 } 435 436 return (0); 437} 438 439static void 440fwe_output_callback(struct fw_xfer *xfer) 441{ 442 struct fwe_softc *fwe; 443 struct ifnet *ifp; 444 int s; 445 446 fwe = (struct fwe_softc *)xfer->sc; 447 ifp = &fwe->fwe_if; 448 /* XXX error check */ 449 FWEDEBUG("resp = %d\n", xfer->resp); 450 if (xfer->resp != 0) 451 ifp->if_oerrors ++; 452 453 m_freem(xfer->mbuf); 454 xfer->send.buf = NULL; 455 fw_xfer_unload(xfer); 456 457 s = splimp(); 458 STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 459 splx(s); 460 461 /* for queue full */ 462 if (ifp->if_snd.ifq_head != NULL) 463 fwe_start(ifp); 464} 465 466static void 467fwe_start(struct ifnet *ifp) 468{ 469 struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 470 int s; 471 472 FWEDEBUG("%s%d starting\n", ifp->if_name, ifp->if_unit); 473 474 if (fwe->dma_ch < 0) { 475 struct mbuf *m = NULL; 476 477 FWEDEBUG("%s%d not ready.\n", ifp->if_name, ifp->if_unit); 478 479 s = splimp(); 480 do { 481 IF_DEQUEUE(&ifp->if_snd, m); 482 if (m != NULL) 483 m_freem(m); 484 ifp->if_oerrors ++; 485 } while (m != NULL); 486 splx(s); 487 488 return; 489 } 490 491 s = splimp(); 492 ifp->if_flags |= IFF_OACTIVE; 493 494 if (ifp->if_snd.ifq_len != 0) 495 fwe_as_output(fwe, ifp); 496 497 ifp->if_flags &= ~IFF_OACTIVE; 498 splx(s); 499} 500 501#define HDR_LEN 4 502#ifndef ETHER_ALIGN 503#define ETHER_ALIGN 2 504#endif 505/* Async. stream output */ 506static void 507fwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp) 508{ 509 struct mbuf *m; 510 struct fw_xfer *xfer; 511 struct fw_xferq *xferq; 512 struct fw_pkt *fp; 513 int i = 0; 514 515 xfer = NULL; 516 xferq = fwe->fd.fc->atq; 517 while (xferq->queued < xferq->maxq - 1) { 518 xfer = STAILQ_FIRST(&fwe->xferlist); 519 if (xfer == NULL) { 520 printf("if_fwe: lack of xfer\n"); 521 return; 522 } 523 IF_DEQUEUE(&ifp->if_snd, m); 524 if (m == NULL) 525 break; 526 STAILQ_REMOVE_HEAD(&fwe->xferlist, link); 527#if __FreeBSD_version >= 500000 528 BPF_MTAP(ifp, m); 529#else 530 if (ifp->if_bpf != NULL) 531 bpf_mtap(ifp, m); 532#endif 533 534 /* keep ip packet alignment for alpha */ 535 M_PREPEND(m, ETHER_ALIGN, M_DONTWAIT); 536 fp = (struct fw_pkt *)&xfer->dst; /* XXX */ 537 xfer->dst = *((int32_t *)&fwe->pkt_hdr); 538 fp->mode.stream.len = m->m_pkthdr.len; 539 xfer->send.buf = (caddr_t) fp; 540 xfer->mbuf = m; 541 xfer->send.len = m->m_pkthdr.len + HDR_LEN; 542 543 if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) { 544 /* error */ 545 ifp->if_oerrors ++; 546 /* XXX set error code */ 547 fwe_output_callback(xfer); 548 } else { 549 ifp->if_opackets ++; 550 i++; 551 } 552 } 553#if 0 554 if (i > 1) 555 printf("%d queued\n", i); 556#endif 557 if (i > 0) 558 xferq->start(fwe->fd.fc); 559} 560 561/* Async. stream output */ 562static void 563fwe_as_input(struct fw_xferq *xferq) 564{ 565 struct mbuf *m, *m0; 566 struct ifnet *ifp; 567 struct fwe_softc *fwe; 568 struct fw_bulkxfer *sxfer; 569 struct fw_pkt *fp; 570 u_char *c; 571#if __FreeBSD_version < 500000 572 struct ether_header *eh; 573#endif 574 575 fwe = (struct fwe_softc *)xferq->sc; 576 ifp = &fwe->fwe_if; 577#if 0 578 FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 579#endif 580 while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 581 STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 582 if (sxfer->resp != 0) 583 ifp->if_ierrors ++; 584 fp = mtod(sxfer->mbuf, struct fw_pkt *); 585 /* XXX */ 586 if (fwe->fd.fc->irx_post != NULL) 587 fwe->fd.fc->irx_post(fwe->fd.fc, fp->mode.ld); 588 m = sxfer->mbuf; 589 590 /* insert rbuf */ 591 sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 592 if (m0 != NULL) { 593 m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 594 STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 595 } else 596 printf("fwe_as_input: m_getcl failed\n"); 597 598 m->m_data += HDR_LEN + ETHER_ALIGN; 599 c = mtod(m, char *); 600#if __FreeBSD_version < 500000 601 eh = (struct ether_header *)c; 602 m->m_data += sizeof(struct ether_header); 603#endif 604 m->m_len = m->m_pkthdr.len = 605 fp->mode.stream.len - ETHER_ALIGN; 606 m->m_pkthdr.rcvif = ifp; 607#if 0 608 FWEDEBUG("%02x %02x %02x %02x %02x %02x\n" 609 "%02x %02x %02x %02x %02x %02x\n" 610 "%02x %02x %02x %02x\n" 611 "%02x %02x %02x %02x\n" 612 "%02x %02x %02x %02x\n" 613 "%02x %02x %02x %02x\n", 614 c[0], c[1], c[2], c[3], c[4], c[5], 615 c[6], c[7], c[8], c[9], c[10], c[11], 616 c[12], c[13], c[14], c[15], 617 c[16], c[17], c[18], c[19], 618 c[20], c[21], c[22], c[23], 619 c[20], c[21], c[22], c[23] 620 ); 621#endif 622#if __FreeBSD_version >= 500000 623 (*ifp->if_input)(ifp, m); 624#else 625 ether_input(ifp, eh, m); 626#endif 627 ifp->if_ipackets ++; 628 } 629 if (STAILQ_FIRST(&xferq->stfree) != NULL) 630 fwe->fd.fc->irx_enable(fwe->fd.fc, fwe->dma_ch); 631} 632 633 634static devclass_t fwe_devclass; 635 636static device_method_t fwe_methods[] = { 637 /* device interface */ 638 DEVMETHOD(device_identify, fwe_identify), 639 DEVMETHOD(device_probe, fwe_probe), 640 DEVMETHOD(device_attach, fwe_attach), 641 DEVMETHOD(device_detach, fwe_detach), 642 { 0, 0 } 643}; 644 645static driver_t fwe_driver = { 646 "if_fwe", 647 fwe_methods, 648 sizeof(struct fwe_softc), 649}; 650 651 652DRIVER_MODULE(fwe, firewire, fwe_driver, fwe_devclass, 0, 0); 653MODULE_VERSION(fwe, 1); 654MODULE_DEPEND(fwe, firewire, 1, 1, 1); 655