sys/dev/netif/fwe/if_fwe.c

   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: src/sys/dev/firewire/if_fwe.c,v 1.1.2.11 2003/04/28 03:29:18 simokawa Exp $
  35  * $DragonFly: src/sys/dev/netif/fwe/if_fwe.c,v 1.3 2003/08/07 21:17:02 dillon Exp $
  36  */
  37
  38 #include "opt_inet.h"
  39
  40 #include <sys/param.h>
  41 #include <sys/conf.h>
  42 #include <sys/kernel.h>
  43 #include <sys/malloc.h>
  44 #include <sys/mbuf.h>
  45 #include <sys/socket.h>
  46 #include <sys/sockio.h>
  47 #include <sys/sysctl.h>
  48 #include <sys/systm.h>
  49 #include <sys/module.h>
  50 #include <sys/bus.h>
  51 #include <machine/bus.h>
  52
  53 #include <net/bpf.h>
  54 #include <net/ethernet.h>
  55 #include <net/if.h>
  56 #include <net/if_arp.h>
  57 #include <net/vlan/if_vlan_var.h>
  58 #include <net/route.h>
  59
  60 #include <netinet/in.h>
  61
  62 #include <bus/firewire/firewire.h>
  63 #include <bus/firewire/firewirereg.h>
  64 #include "if_fwevar.h"
  65
  66 #define FWEDEBUG        if (fwedebug) printf
  67 #define TX_MAX_QUEUE    (FWMAXQUEUE - 1)
  68 #define RX_MAX_QUEUE    FWMAXQUEUE
  69
  70 /* network interface */
  71 static void fwe_start __P((struct ifnet *));
  72 static int fwe_ioctl __P((struct ifnet *, u_long, caddr_t));
  73 static void fwe_init __P((void *));
  74
  75 static void fwe_output_callback __P((struct fw_xfer *));
  76 static void fwe_as_output __P((struct fwe_softc *, struct ifnet *));
  77 static void fwe_as_input __P((struct fw_xferq *));
  78
  79 static int fwedebug = 0;
  80 static int stream_ch = 1;
  81
  82 MALLOC_DEFINE(M_FWE, "if_fwe", "Ethernet over FireWire interface");
  83 SYSCTL_INT(_debug, OID_AUTO, if_fwe_debug, CTLFLAG_RW, &fwedebug, 0, "");
  84 SYSCTL_DECL(_hw_firewire);
  85 SYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD, 0,
  86         "Ethernet Emulation Subsystem");
  87 SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, stream_ch, CTLFLAG_RW, &stream_ch, 0,
  88         "Stream channel to use");
  89
  90 #ifdef DEVICE_POLLING
  91 #define FWE_POLL_REGISTER(func, fwe, ifp)                       \
  92         if (ether_poll_register(func, ifp)) {                   \
  93                 struct firewire_comm *fc = (fwe)->fd.fc;        \
  94                 fc->set_intr(fc, 0);                            \
  95         }
  96
  97 #define FWE_POLL_DEREGISTER(fwe, ifp)                           \
  98         do {                                                    \
  99                 struct firewire_comm *fc = (fwe)->fd.fc;        \
 100                 ether_poll_deregister(ifp);                     \
 101                 fc->set_intr(fc, 1);                            \
 102         } while(0)                                              \
 103
 104 static poll_handler_t fwe_poll;
 105
 106 static void
 107 fwe_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
 108 {
 109         struct fwe_softc *fwe;
 110         struct firewire_comm *fc;
 111
 112         fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe;
 113         fc = fwe->fd.fc;
 114         if (cmd == POLL_DEREGISTER) {
 115                 /* enable interrupts */
 116                 fc->set_intr(fc, 1);
 117                 return;
 118         }
 119         fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count);
 120 }
 121 #else
 122 #define FWE_POLL_REGISTER(func, fwe, ifp)
 123 #define FWE_POLL_DEREGISTER(fwe, ifp)
 124 #endif
 125 static void
 126 fwe_identify(driver_t *driver, device_t parent)
 127 {
 128         BUS_ADD_CHILD(parent, 0, "if_fwe", device_get_unit(parent));
 129 }
 130
 131 static int
 132 fwe_probe(device_t dev)
 133 {
 134         device_t pa;
 135
 136         pa = device_get_parent(dev);
 137         if(device_get_unit(dev) != device_get_unit(pa)){
 138                 return(ENXIO);
 139         }
 140
 141         device_set_desc(dev, "Ethernet over FireWire");
 142         return (0);
 143 }
 144
 145 static int
 146 fwe_attach(device_t dev)
 147 {
 148         struct fwe_softc *fwe;
 149         struct ifnet *ifp;
 150         int unit, s;
 151         u_char *eaddr;
 152         struct fw_eui64 *eui;
 153
 154         fwe = ((struct fwe_softc *)device_get_softc(dev));
 155         unit = device_get_unit(dev);
 156
 157         bzero(fwe, sizeof(struct fwe_softc));
 158         /* XXX */
 159         fwe->stream_ch = stream_ch;
 160         fwe->dma_ch = -1;
 161
 162         fwe->fd.fc = device_get_ivars(dev);
 163         fwe->fd.dev = dev;
 164         fwe->fd.post_explore = NULL;
 165         fwe->eth_softc.fwe = fwe;
 166
 167         fwe->pkt_hdr.mode.stream.tcode = FWTCODE_STREAM;
 168         fwe->pkt_hdr.mode.stream.sy = 0;
 169         fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch;
 170
 171         /* generate fake MAC address: first and last 3bytes from eui64 */
 172 #define LOCAL (0x02)
 173 #define GROUP (0x01)
 174         eaddr = &fwe->eth_softc.arpcom.ac_enaddr[0];
 175
 176         eui = &fwe->fd.fc->eui;
 177         eaddr[0] = (FW_EUI64_BYTE(eui, 0) | LOCAL) & ~GROUP;
 178         eaddr[1] = FW_EUI64_BYTE(eui, 1);
 179         eaddr[2] = FW_EUI64_BYTE(eui, 2);
 180         eaddr[3] = FW_EUI64_BYTE(eui, 5);
 181         eaddr[4] = FW_EUI64_BYTE(eui, 6);
 182         eaddr[5] = FW_EUI64_BYTE(eui, 7);
 183         printf("if_fwe%d: Fake Ethernet address: "
 184                 "%02x:%02x:%02x:%02x:%02x:%02x\n", unit,
 185                 eaddr[0], eaddr[1], eaddr[2], eaddr[3], eaddr[4], eaddr[5]);
 186
 187         /* fill the rest and attach interface */
 188         ifp = &fwe->fwe_if;
 189         ifp->if_softc = &fwe->eth_softc;
 190
 191         ifp->if_unit = unit;
 192         ifp->if_name = "fwe";
 193         ifp->if_init = fwe_init;
 194         ifp->if_output = ether_output;
 195         ifp->if_start = fwe_start;
 196         ifp->if_ioctl = fwe_ioctl;
 197         ifp->if_mtu = ETHERMTU;
 198         ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST);
 199         ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE;
 200
 201         s = splimp();
 202 #if __FreeBSD_version >= 500000
 203         ether_ifattach(ifp, eaddr);
 204 #else
 205         ether_ifattach(ifp, 1);
 206 #endif
 207         splx(s);
 208
 209         /* Tell the upper layer(s) we support long frames. */
 210         ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
 211 #if __FreeBSD_version >= 500000
 212         ifp->if_capabilities |= IFCAP_VLAN_MTU;
 213 #endif
 214
 215
 216         FWEDEBUG("interface %s%d created.\n", ifp->if_name, ifp->if_unit);
 217         return 0;
 218 }
 219
 220 static void
 221 fwe_stop(struct fwe_softc *fwe)
 222 {
 223         struct firewire_comm *fc;
 224         struct fw_xferq *xferq;
 225         struct ifnet *ifp = &fwe->fwe_if;
 226         struct fw_xfer *xfer, *next;
 227         int i;
 228
 229         fc = fwe->fd.fc;
 230
 231         FWE_POLL_DEREGISTER(fwe, ifp);
 232
 233         if (fwe->dma_ch >= 0) {
 234                 xferq = fc->ir[fwe->dma_ch];
 235
 236                 if (xferq->flag & FWXFERQ_RUNNING)
 237                         fc->irx_disable(fc, fwe->dma_ch);
 238                 xferq->flag &=
 239                         ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM |
 240                         FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK);
 241                 xferq->hand =  NULL;
 242
 243                 for (i = 0; i < xferq->bnchunk; i ++)
 244                         m_freem(xferq->bulkxfer[i].mbuf);
 245                 free(xferq->bulkxfer, M_FWE);
 246
 247                 for (xfer = STAILQ_FIRST(&fwe->xferlist); xfer != NULL;
 248                                         xfer = next) {
 249                         next = STAILQ_NEXT(xfer, link);
 250                         fw_xfer_free(xfer);
 251                 }
 252                 STAILQ_INIT(&fwe->xferlist);
 253
 254                 xferq->bulkxfer =  NULL;
 255                 fwe->dma_ch = -1;
 256         }
 257
 258         ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
 259 }
 260
 261 static int
 262 fwe_detach(device_t dev)
 263 {
 264         struct fwe_softc *fwe;
 265         int s;
 266
 267         fwe = (struct fwe_softc *)device_get_softc(dev);
 268         s = splimp();
 269
 270         fwe_stop(fwe);
 271 #if __FreeBSD_version >= 500000
 272         ether_ifdetach(&fwe->fwe_if);
 273 #else
 274         ether_ifdetach(&fwe->fwe_if, 1);
 275 #endif
 276
 277         splx(s);
 278         return 0;
 279 }
 280
 281 static void
 282 fwe_init(void *arg)
 283 {
 284         struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe;
 285         struct firewire_comm *fc;
 286         struct ifnet *ifp = &fwe->fwe_if;
 287         struct fw_xferq *xferq;
 288         struct fw_xfer *xfer;
 289         struct mbuf *m;
 290         int i;
 291
 292         FWEDEBUG("initializing %s%d\n", ifp->if_name, ifp->if_unit);
 293
 294         /* XXX keep promiscoud mode */
 295         ifp->if_flags |= IFF_PROMISC;
 296
 297         fc = fwe->fd.fc;
 298 #define START 0
 299         if (fwe->dma_ch < 0) {
 300                 xferq = NULL;
 301                 for (i = START; i < fc->nisodma; i ++) {
 302                         xferq = fc->ir[i];
 303                         if ((xferq->flag & FWXFERQ_OPEN) == 0)
 304                                 break;
 305                 }
 306
 307                 if (xferq == NULL) {
 308                         printf("no free dma channel\n");
 309                         return;
 310                 }
 311                 fwe->dma_ch = i;
 312                 fwe->stream_ch = stream_ch;
 313                 fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch;
 314                 /* allocate DMA channel and init packet mode */
 315                 xferq->flag |= FWXFERQ_OPEN | FWXFERQ_EXTBUF |
 316                                 FWXFERQ_HANDLER | FWXFERQ_STREAM;
 317                 xferq->flag &= ~0xff;
 318                 xferq->flag |= fwe->stream_ch & 0xff;
 319                 /* register fwe_input handler */
 320                 xferq->sc = (caddr_t) fwe;
 321                 xferq->hand = fwe_as_input;
 322                 xferq->bnchunk = RX_MAX_QUEUE;
 323                 xferq->bnpacket = 1;
 324                 xferq->psize = MCLBYTES;
 325                 xferq->queued = 0;
 326                 xferq->buf = NULL;
 327                 xferq->bulkxfer = (struct fw_bulkxfer *) malloc(
 328                         sizeof(struct fw_bulkxfer) * xferq->bnchunk,
 329                                                         M_FWE, M_WAITOK);
 330                 if (xferq->bulkxfer == NULL) {
 331                         printf("if_fwe: malloc failed\n");
 332                         return;
 333                 }
 334                 STAILQ_INIT(&xferq->stvalid);
 335                 STAILQ_INIT(&xferq->stfree);
 336                 STAILQ_INIT(&xferq->stdma);
 337                 xferq->stproc = NULL;
 338                 for (i = 0; i < xferq->bnchunk; i ++) {
 339                         m =
 340 #if __FreeBSD_version >= 500000
 341                                 m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR);
 342 #else
 343                                 m_getcl(M_WAIT, MT_DATA, M_PKTHDR);
 344 #endif
 345                         xferq->bulkxfer[i].mbuf = m;
 346                         if (m != NULL) {
 347                                 m->m_len = m->m_pkthdr.len = m->m_ext.ext_size;
 348                                 STAILQ_INSERT_TAIL(&xferq->stfree,
 349                                                 &xferq->bulkxfer[i], link);
 350                         } else
 351                                 printf("fwe_as_input: m_getcl failed\n");
 352                 }
 353                 STAILQ_INIT(&fwe->xferlist);
 354                 for (i = 0; i < TX_MAX_QUEUE; i++) {
 355                         xfer = fw_xfer_alloc(M_FWE);
 356                         if (xfer == NULL)
 357                                 break;
 358                         xfer->spd = 2;
 359                         xfer->fc = fwe->fd.fc;
 360                         xfer->retry_req = fw_asybusy;
 361                         xfer->sc = (caddr_t)fwe;
 362                         xfer->act.hand = fwe_output_callback;
 363                         STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link);
 364                 }
 365         } else
 366                 xferq = fc->ir[fwe->dma_ch];
 367
 368
 369         /* start dma */
 370         if ((xferq->flag & FWXFERQ_RUNNING) == 0)
 371                 fc->irx_enable(fc, fwe->dma_ch);
 372
 373         ifp->if_flags |= IFF_RUNNING;
 374         ifp->if_flags &= ~IFF_OACTIVE;
 375
 376         FWE_POLL_REGISTER(fwe_poll, fwe, ifp);
 377 #if 0
 378         /* attempt to start output */
 379         fwe_start(ifp);
 380 #endif
 381 }
 382
 383
 384 static int
 385 fwe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 386 {
 387         struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe;
 388         struct ifstat *ifs = NULL;
 389         int s, error, len;
 390
 391         switch (cmd) {
 392                 case SIOCSIFFLAGS:
 393                         s = splimp();
 394                         if (ifp->if_flags & IFF_UP) {
 395                                 if (!(ifp->if_flags & IFF_RUNNING))
 396                                         fwe_init(&fwe->eth_softc);
 397                         } else {
 398                                 if (ifp->if_flags & IFF_RUNNING)
 399                                         fwe_stop(fwe);
 400                         }
 401                         /* XXX keep promiscoud mode */
 402                         ifp->if_flags |= IFF_PROMISC;
 403                         splx(s);
 404                         break;
 405                 case SIOCADDMULTI:
 406                 case SIOCDELMULTI:
 407                         break;
 408
 409                 case SIOCGIFSTATUS:
 410                         s = splimp();
 411                         ifs = (struct ifstat *)data;
 412                         len = strlen(ifs->ascii);
 413                         if (len < sizeof(ifs->ascii))
 414                                 snprintf(ifs->ascii + len,
 415                                         sizeof(ifs->ascii) - len,
 416                                         "\tch %d dma %d\n",
 417                                                 fwe->stream_ch, fwe->dma_ch);
 418                         splx(s);
 419                         break;
 420 #if __FreeBSD_version >= 500000
 421                 default:
 422 #else
 423                 case SIOCSIFADDR:
 424                 case SIOCGIFADDR:
 425                 case SIOCSIFMTU:
 426 #endif
 427                         s = splimp();
 428                         error = ether_ioctl(ifp, cmd, data);
 429                         splx(s);
 430                         return (error);
 431 #if __FreeBSD_version < 500000
 432                 default:
 433                         return (EINVAL);
 434 #endif
 435         }
 436
 437         return (0);
 438 }
 439
 440 static void
 441 fwe_output_callback(struct fw_xfer *xfer)
 442 {
 443         struct fwe_softc *fwe;
 444         struct ifnet *ifp;
 445         int s;
 446
 447         fwe = (struct fwe_softc *)xfer->sc;
 448         ifp = &fwe->fwe_if;
 449         /* XXX error check */
 450         FWEDEBUG("resp = %d\n", xfer->resp);
 451         if (xfer->resp != 0)
 452                 ifp->if_oerrors ++;
 453
 454         m_freem(xfer->mbuf);
 455         xfer->send.buf = NULL;
 456         fw_xfer_unload(xfer);
 457
 458         s = splimp();
 459         STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link);
 460         splx(s);
 461
 462         /* for queue full */
 463         if (ifp->if_snd.ifq_head != NULL)
 464                 fwe_start(ifp);
 465 }
 466
 467 static void
 468 fwe_start(struct ifnet *ifp)
 469 {
 470         struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe;
 471         int s;
 472
 473         FWEDEBUG("%s%d starting\n", ifp->if_name, ifp->if_unit);
 474
 475         if (fwe->dma_ch < 0) {
 476                 struct mbuf     *m = NULL;
 477
 478                 FWEDEBUG("%s%d not ready.\n", ifp->if_name, ifp->if_unit);
 479
 480                 s = splimp();
 481                 do {
 482                         IF_DEQUEUE(&ifp->if_snd, m);
 483                         if (m != NULL)
 484                                 m_freem(m);
 485                         ifp->if_oerrors ++;
 486                 } while (m != NULL);
 487                 splx(s);
 488
 489                 return;
 490         }
 491
 492         s = splimp();
 493         ifp->if_flags |= IFF_OACTIVE;
 494
 495         if (ifp->if_snd.ifq_len != 0)
 496                 fwe_as_output(fwe, ifp);
 497
 498         ifp->if_flags &= ~IFF_OACTIVE;
 499         splx(s);
 500 }
 501
 502 #define HDR_LEN 4
 503 #ifndef ETHER_ALIGN
 504 #define ETHER_ALIGN 2
 505 #endif
 506 /* Async. stream output */
 507 static void
 508 fwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp)
 509 {
 510         struct mbuf *m;
 511         struct fw_xfer *xfer;
 512         struct fw_xferq *xferq;
 513         struct fw_pkt *fp;
 514         int i = 0;
 515
 516         xfer = NULL;
 517         xferq = fwe->fd.fc->atq;
 518         while (xferq->queued < xferq->maxq - 1) {
 519                 xfer = STAILQ_FIRST(&fwe->xferlist);
 520                 if (xfer == NULL) {
 521                         printf("if_fwe: lack of xfer\n");
 522                         return;
 523                 }
 524                 IF_DEQUEUE(&ifp->if_snd, m);
 525                 if (m == NULL)
 526                         break;
 527                 STAILQ_REMOVE_HEAD(&fwe->xferlist, link);
 528 #if __FreeBSD_version >= 500000
 529                 BPF_MTAP(ifp, m);
 530 #else
 531                 if (ifp->if_bpf != NULL)
 532                         bpf_mtap(ifp, m);
 533 #endif
 534
 535                 /* keep ip packet alignment for alpha */
 536                 M_PREPEND(m, ETHER_ALIGN, M_DONTWAIT);
 537                 fp = (struct fw_pkt *)&xfer->dst; /* XXX */
 538                 xfer->dst = *((int32_t *)&fwe->pkt_hdr);
 539                 fp->mode.stream.len = m->m_pkthdr.len;
 540                 xfer->send.buf = (caddr_t) fp;
 541                 xfer->mbuf = m;
 542                 xfer->send.len = m->m_pkthdr.len + HDR_LEN;
 543
 544                 if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) {
 545                         /* error */
 546                         ifp->if_oerrors ++;
 547                         /* XXX set error code */
 548                         fwe_output_callback(xfer);
 549                 } else {
 550                         ifp->if_opackets ++;
 551                         i++;
 552                 }
 553         }
 554 #if 0
 555         if (i > 1)
 556                 printf("%d queued\n", i);
 557 #endif
 558         if (i > 0)
 559                 xferq->start(fwe->fd.fc);
 560 }
 561
 562 /* Async. stream output */
 563 static void
 564 fwe_as_input(struct fw_xferq *xferq)
 565 {
 566         struct mbuf *m, *m0;
 567         struct ifnet *ifp;
 568         struct fwe_softc *fwe;
 569         struct fw_bulkxfer *sxfer;
 570         struct fw_pkt *fp;
 571         u_char *c;
 572 #if __FreeBSD_version < 500000
 573         struct ether_header *eh;
 574 #endif
 575
 576         fwe = (struct fwe_softc *)xferq->sc;
 577         ifp = &fwe->fwe_if;
 578 #if 0
 579         FWE_POLL_REGISTER(fwe_poll, fwe, ifp);
 580 #endif
 581         while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) {
 582                 STAILQ_REMOVE_HEAD(&xferq->stvalid, link);
 583                 if (sxfer->resp != 0)
 584                         ifp->if_ierrors ++;
 585                 fp = mtod(sxfer->mbuf, struct fw_pkt *);
 586                 /* XXX */
 587                 if (fwe->fd.fc->irx_post != NULL)
 588                         fwe->fd.fc->irx_post(fwe->fd.fc, fp->mode.ld);
 589                 m = sxfer->mbuf;
 590
 591                 /* insert rbuf */
 592                 sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
 593                 if (m0 != NULL) {
 594                         m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size;
 595                         STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link);
 596                 } else
 597                         printf("fwe_as_input: m_getcl failed\n");
 598
 599                 m->m_data += HDR_LEN + ETHER_ALIGN;
 600                 c = mtod(m, char *);
 601 #if __FreeBSD_version < 500000
 602                 eh = (struct ether_header *)c;
 603                 m->m_data += sizeof(struct ether_header);
 604 #endif
 605                 m->m_len = m->m_pkthdr.len =
 606                                 fp->mode.stream.len - ETHER_ALIGN;
 607                 m->m_pkthdr.rcvif = ifp;
 608 #if 0
 609                 FWEDEBUG("%02x %02x %02x %02x %02x %02x\n"
 610                          "%02x %02x %02x %02x %02x %02x\n"
 611                          "%02x %02x %02x %02x\n"
 612                          "%02x %02x %02x %02x\n"
 613                          "%02x %02x %02x %02x\n"
 614                          "%02x %02x %02x %02x\n",
 615                          c[0], c[1], c[2], c[3], c[4], c[5],
 616                          c[6], c[7], c[8], c[9], c[10], c[11],
 617                          c[12], c[13], c[14], c[15],
 618                          c[16], c[17], c[18], c[19],
 619                          c[20], c[21], c[22], c[23],
 620                          c[20], c[21], c[22], c[23]
 621                  );
 622 #endif
 623 #if __FreeBSD_version >= 500000
 624                 (*ifp->if_input)(ifp, m);
 625 #else
 626                 ether_input(ifp, eh, m);
 627 #endif
 628                 ifp->if_ipackets ++;
 629         }
 630         if (STAILQ_FIRST(&xferq->stfree) != NULL)
 631                 fwe->fd.fc->irx_enable(fwe->fd.fc, fwe->dma_ch);
 632 }
 633
 634
 635 static devclass_t fwe_devclass;
 636
 637 static device_method_t fwe_methods[] = {
 638         /* device interface */
 639         DEVMETHOD(device_identify,      fwe_identify),
 640         DEVMETHOD(device_probe,         fwe_probe),
 641         DEVMETHOD(device_attach,        fwe_attach),
 642         DEVMETHOD(device_detach,        fwe_detach),
 643         { 0, 0 }
 644 };
 645
 646 static driver_t fwe_driver = {
 647         "if_fwe",
 648         fwe_methods,
 649         sizeof(struct fwe_softc),
 650 };
 651
 652
 653 DRIVER_MODULE(fwe, firewire, fwe_driver, fwe_devclass, 0, 0);
 654 MODULE_VERSION(fwe, 1);
 655 MODULE_DEPEND(fwe, firewire, 1, 1, 1);