if_fwe.c revision 150968
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 150968 2005-10-05 10:09:17Z glebius $ 35 */ 36 37#ifdef HAVE_KERNEL_OPTION_HEADERS 38#include "opt_device_polling.h" 39#include "opt_inet.h" 40#endif 41 42#include <sys/param.h> 43#include <sys/kernel.h> 44#include <sys/malloc.h> 45#include <sys/mbuf.h> 46#include <sys/socket.h> 47#include <sys/sockio.h> 48#include <sys/sysctl.h> 49#include <sys/systm.h> 50#include <sys/module.h> 51#include <sys/bus.h> 52#include <machine/bus.h> 53 54#include <net/bpf.h> 55#include <net/ethernet.h> 56#include <net/if.h> 57#include <net/if_arp.h> 58#include <net/if_types.h> 59#ifdef __DragonFly__ 60#include <net/vlan/if_vlan_var.h> 61#include <bus/firewire/firewire.h> 62#include <bus/firewire/firewirereg.h> 63#include "if_fwevar.h" 64#else 65#include <net/if_vlan_var.h> 66 67#include <dev/firewire/firewire.h> 68#include <dev/firewire/firewirereg.h> 69#include <dev/firewire/if_fwevar.h> 70#endif 71 72#define FWEDEBUG if (fwedebug) if_printf 73#define TX_MAX_QUEUE (FWMAXQUEUE - 1) 74 75/* network interface */ 76static void fwe_start (struct ifnet *); 77static int fwe_ioctl (struct ifnet *, u_long, caddr_t); 78static void fwe_init (void *); 79 80static void fwe_output_callback (struct fw_xfer *); 81static void fwe_as_output (struct fwe_softc *, struct ifnet *); 82static void fwe_as_input (struct fw_xferq *); 83 84static int fwedebug = 0; 85static int stream_ch = 1; 86static int tx_speed = 2; 87static int rx_queue_len = FWMAXQUEUE; 88 89MALLOC_DEFINE(M_FWE, "if_fwe", "Ethernet over FireWire interface"); 90SYSCTL_INT(_debug, OID_AUTO, if_fwe_debug, CTLFLAG_RW, &fwedebug, 0, ""); 91SYSCTL_DECL(_hw_firewire); 92SYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD, 0, 93 "Ethernet emulation subsystem"); 94SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, stream_ch, CTLFLAG_RW, &stream_ch, 0, 95 "Stream channel to use"); 96SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, tx_speed, CTLFLAG_RW, &tx_speed, 0, 97 "Transmission speed"); 98SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, rx_queue_len, CTLFLAG_RW, &rx_queue_len, 99 0, "Length of the receive queue"); 100 101TUNABLE_INT("hw.firewire.fwe.stream_ch", &stream_ch); 102TUNABLE_INT("hw.firewire.fwe.tx_speed", &tx_speed); 103TUNABLE_INT("hw.firewire.fwe.rx_queue_len", &rx_queue_len); 104 105#ifdef DEVICE_POLLING 106static poll_handler_t fwe_poll; 107 108static void 109fwe_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 110{ 111 struct fwe_softc *fwe; 112 struct firewire_comm *fc; 113 114 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 115 return; 116 117 fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 118 fc = fwe->fd.fc; 119 fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count); 120} 121#endif /* DEVICE_POLLING */ 122 123static void 124fwe_identify(driver_t *driver, device_t parent) 125{ 126 BUS_ADD_CHILD(parent, 0, "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#if defined(__DragonFly__) || __FreeBSD_version < 500000 150 u_char *eaddr; 151#else 152 u_char eaddr[6]; 153#endif 154 struct fw_eui64 *eui; 155 156 fwe = ((struct fwe_softc *)device_get_softc(dev)); 157 unit = device_get_unit(dev); 158 159 bzero(fwe, sizeof(struct fwe_softc)); 160 /* XXX */ 161 fwe->stream_ch = stream_ch; 162 fwe->dma_ch = -1; 163 164 fwe->fd.fc = device_get_ivars(dev); 165 if (tx_speed < 0) 166 tx_speed = fwe->fd.fc->speed; 167 168 fwe->fd.dev = dev; 169 fwe->fd.post_explore = NULL; 170 fwe->eth_softc.fwe = fwe; 171 172 fwe->pkt_hdr.mode.stream.tcode = FWTCODE_STREAM; 173 fwe->pkt_hdr.mode.stream.sy = 0; 174 fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 175 176 /* generate fake MAC address: first and last 3bytes from eui64 */ 177#define LOCAL (0x02) 178#define GROUP (0x01) 179#if defined(__DragonFly__) || __FreeBSD_version < 500000 180 eaddr = &IFP2ENADDR(fwe->eth_softc.ifp)[0]; 181#endif 182 183 184 eui = &fwe->fd.fc->eui; 185 eaddr[0] = (FW_EUI64_BYTE(eui, 0) | LOCAL) & ~GROUP; 186 eaddr[1] = FW_EUI64_BYTE(eui, 1); 187 eaddr[2] = FW_EUI64_BYTE(eui, 2); 188 eaddr[3] = FW_EUI64_BYTE(eui, 5); 189 eaddr[4] = FW_EUI64_BYTE(eui, 6); 190 eaddr[5] = FW_EUI64_BYTE(eui, 7); 191 printf("if_fwe%d: Fake Ethernet address: " 192 "%02x:%02x:%02x:%02x:%02x:%02x\n", unit, 193 eaddr[0], eaddr[1], eaddr[2], eaddr[3], eaddr[4], eaddr[5]); 194 195 /* fill the rest and attach interface */ 196 ifp = fwe->eth_softc.ifp = if_alloc(IFT_ETHER); 197 if (ifp == NULL) { 198 device_printf(dev, "can not if_alloc()\n"); 199 return (ENOSPC); 200 } 201 ifp->if_softc = &fwe->eth_softc; 202 203#if __FreeBSD_version >= 501113 || defined(__DragonFly__) 204 if_initname(ifp, device_get_name(dev), unit); 205#else 206 ifp->if_unit = unit; 207 ifp->if_name = "fwe"; 208#endif 209 ifp->if_init = fwe_init; 210#if defined(__DragonFly__) || __FreeBSD_version < 500000 211 ifp->if_output = ether_output; 212#endif 213 ifp->if_start = fwe_start; 214 ifp->if_ioctl = fwe_ioctl; 215 ifp->if_mtu = ETHERMTU; 216 ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST| 217 IFF_NEEDSGIANT); 218 ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE; 219 220 s = splimp(); 221#if defined(__DragonFly__) || __FreeBSD_version < 500000 222 ether_ifattach(ifp, 1); 223#else 224 ether_ifattach(ifp, eaddr); 225#endif 226 splx(s); 227 228 /* Tell the upper layer(s) we support long frames. */ 229 ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 230#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 231 ifp->if_capabilities |= IFCAP_VLAN_MTU & IFCAP_POLLING; 232 ifp->if_capenable |= IFCAP_VLAN_MTU; 233#endif 234 235 236 FWEDEBUG(ifp, "interface created\n"); 237 return 0; 238} 239 240static void 241fwe_stop(struct fwe_softc *fwe) 242{ 243 struct firewire_comm *fc; 244 struct fw_xferq *xferq; 245 struct ifnet *ifp = fwe->eth_softc.ifp; 246 struct fw_xfer *xfer, *next; 247 int i; 248 249 fc = fwe->fd.fc; 250 251 if (fwe->dma_ch >= 0) { 252 xferq = fc->ir[fwe->dma_ch]; 253 254 if (xferq->flag & FWXFERQ_RUNNING) 255 fc->irx_disable(fc, fwe->dma_ch); 256 xferq->flag &= 257 ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 258 FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 259 xferq->hand = NULL; 260 261 for (i = 0; i < xferq->bnchunk; i ++) 262 m_freem(xferq->bulkxfer[i].mbuf); 263 free(xferq->bulkxfer, M_FWE); 264 265 for (xfer = STAILQ_FIRST(&fwe->xferlist); xfer != NULL; 266 xfer = next) { 267 next = STAILQ_NEXT(xfer, link); 268 fw_xfer_free(xfer); 269 } 270 STAILQ_INIT(&fwe->xferlist); 271 272 xferq->bulkxfer = NULL; 273 fwe->dma_ch = -1; 274 } 275 276#if defined(__FreeBSD__) 277 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 278#else 279 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 280#endif 281} 282 283static int 284fwe_detach(device_t dev) 285{ 286 struct fwe_softc *fwe; 287 struct ifnet *ifp; 288 int s; 289 290 fwe = device_get_softc(dev); 291 ifp = fwe->eth_softc.ifp; 292 293#ifdef DEVICE_POLLING 294 if (ifp->if_capenable & IFCAP_POLLING) 295 ether_poll_deregister(ifp); 296#endif 297 s = splimp(); 298 299 fwe_stop(fwe); 300#if defined(__DragonFly__) || __FreeBSD_version < 500000 301 ether_ifdetach(ifp, 1); 302#else 303 ether_ifdetach(ifp); 304 if_free(ifp); 305#endif 306 307 splx(s); 308 return 0; 309} 310 311static void 312fwe_init(void *arg) 313{ 314 struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe; 315 struct firewire_comm *fc; 316 struct ifnet *ifp = fwe->eth_softc.ifp; 317 struct fw_xferq *xferq; 318 struct fw_xfer *xfer; 319 struct mbuf *m; 320 int i; 321 322 FWEDEBUG(ifp, "initializing\n"); 323 324 /* XXX keep promiscoud mode */ 325 ifp->if_flags |= IFF_PROMISC; 326 327 fc = fwe->fd.fc; 328#define START 0 329 if (fwe->dma_ch < 0) { 330 for (i = START; i < fc->nisodma; i ++) { 331 xferq = fc->ir[i]; 332 if ((xferq->flag & FWXFERQ_OPEN) == 0) 333 goto found; 334 } 335 printf("no free dma channel\n"); 336 return; 337found: 338 fwe->dma_ch = i; 339 fwe->stream_ch = stream_ch; 340 fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 341 /* allocate DMA channel and init packet mode */ 342 xferq->flag |= FWXFERQ_OPEN | FWXFERQ_EXTBUF | 343 FWXFERQ_HANDLER | FWXFERQ_STREAM; 344 xferq->flag &= ~0xff; 345 xferq->flag |= fwe->stream_ch & 0xff; 346 /* register fwe_input handler */ 347 xferq->sc = (caddr_t) fwe; 348 xferq->hand = fwe_as_input; 349 xferq->bnchunk = rx_queue_len; 350 xferq->bnpacket = 1; 351 xferq->psize = MCLBYTES; 352 xferq->queued = 0; 353 xferq->buf = NULL; 354 xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 355 sizeof(struct fw_bulkxfer) * xferq->bnchunk, 356 M_FWE, M_WAITOK); 357 if (xferq->bulkxfer == NULL) { 358 printf("if_fwe: malloc failed\n"); 359 return; 360 } 361 STAILQ_INIT(&xferq->stvalid); 362 STAILQ_INIT(&xferq->stfree); 363 STAILQ_INIT(&xferq->stdma); 364 xferq->stproc = NULL; 365 for (i = 0; i < xferq->bnchunk; i ++) { 366 m = 367#if defined(__DragonFly__) || __FreeBSD_version < 500000 368 m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 369#else 370 m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 371#endif 372 xferq->bulkxfer[i].mbuf = m; 373 if (m != NULL) { 374 m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 375 STAILQ_INSERT_TAIL(&xferq->stfree, 376 &xferq->bulkxfer[i], link); 377 } else 378 printf("fwe_as_input: m_getcl failed\n"); 379 } 380 STAILQ_INIT(&fwe->xferlist); 381 for (i = 0; i < TX_MAX_QUEUE; i++) { 382 xfer = fw_xfer_alloc(M_FWE); 383 if (xfer == NULL) 384 break; 385 xfer->send.spd = tx_speed; 386 xfer->fc = fwe->fd.fc; 387 xfer->retry_req = fw_asybusy; 388 xfer->sc = (caddr_t)fwe; 389 xfer->act.hand = fwe_output_callback; 390 STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 391 } 392 } else 393 xferq = fc->ir[fwe->dma_ch]; 394 395 396 /* start dma */ 397 if ((xferq->flag & FWXFERQ_RUNNING) == 0) 398 fc->irx_enable(fc, fwe->dma_ch); 399 400#if defined(__FreeBSD__) 401 ifp->if_drv_flags |= IFF_DRV_RUNNING; 402 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 403#else 404 ifp->if_flags |= IFF_RUNNING; 405 ifp->if_flags &= ~IFF_OACTIVE; 406#endif 407 408#if 0 409 /* attempt to start output */ 410 fwe_start(ifp); 411#endif 412} 413 414 415static int 416fwe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 417{ 418 struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 419 struct ifstat *ifs = NULL; 420 int s, error, len; 421 422 switch (cmd) { 423 case SIOCSIFFLAGS: 424 s = splimp(); 425 if (ifp->if_flags & IFF_UP) { 426#if defined(__FreeBSD__) 427 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 428#else 429 if (!(ifp->if_flags & IFF_RUNNING)) 430#endif 431 fwe_init(&fwe->eth_softc); 432 } else { 433#if defined(__FreeBSD__) 434 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 435#else 436 if (ifp->if_flags & IFF_RUNNING) 437#endif 438 fwe_stop(fwe); 439 } 440 /* XXX keep promiscoud mode */ 441 ifp->if_flags |= IFF_PROMISC; 442 splx(s); 443 break; 444 case SIOCADDMULTI: 445 case SIOCDELMULTI: 446 break; 447 448 case SIOCGIFSTATUS: 449 s = splimp(); 450 ifs = (struct ifstat *)data; 451 len = strlen(ifs->ascii); 452 if (len < sizeof(ifs->ascii)) 453 snprintf(ifs->ascii + len, 454 sizeof(ifs->ascii) - len, 455 "\tch %d dma %d\n", 456 fwe->stream_ch, fwe->dma_ch); 457 splx(s); 458 break; 459 case SIOCSIFCAP: 460#ifdef DEVICE_POLLING 461 { 462 struct ifreq *ifr = (struct ifreq *) data; 463 struct firewire_comm *fc = fc = fwe->fd.fc; 464 465 if (ifr->ifr_reqcap & IFCAP_POLLING && 466 !(ifp->if_capenable & IFCAP_POLLING)) { 467 error = ether_poll_register(fwe_poll, ifp); 468 if (error) 469 return(error); 470 /* Disable interrupts */ 471 fc->set_intr(fc, 0); 472 ifp->if_capenable |= IFCAP_POLLING; 473 return (error); 474 475 } 476 if (!(ifr->ifr_reqcap & IFCAP_POLLING) && 477 ifp->if_capenable & IFCAP_POLLING) { 478 error = ether_poll_deregister(ifp); 479 /* Enable interrupts. */ 480 fc->set_intr(fc, 1); 481 ifp->if_capenable &= ~IFCAP_POLLING; 482 return (error); 483 } 484 } 485#endif /* DEVICE_POLLING */ 486 break; 487#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 488 default: 489#else 490 case SIOCSIFADDR: 491 case SIOCGIFADDR: 492 case SIOCSIFMTU: 493#endif 494 s = splimp(); 495 error = ether_ioctl(ifp, cmd, data); 496 splx(s); 497 return (error); 498#if defined(__DragonFly__) || __FreeBSD_version < 500000 499 default: 500 return (EINVAL); 501#endif 502 } 503 504 return (0); 505} 506 507static void 508fwe_output_callback(struct fw_xfer *xfer) 509{ 510 struct fwe_softc *fwe; 511 struct ifnet *ifp; 512 int s; 513 514 fwe = (struct fwe_softc *)xfer->sc; 515 ifp = fwe->eth_softc.ifp; 516 /* XXX error check */ 517 FWEDEBUG(ifp, "resp = %d\n", xfer->resp); 518 if (xfer->resp != 0) 519 ifp->if_oerrors ++; 520 521 m_freem(xfer->mbuf); 522 fw_xfer_unload(xfer); 523 524 s = splimp(); 525 STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 526 splx(s); 527 528 /* for queue full */ 529 if (ifp->if_snd.ifq_head != NULL) 530 fwe_start(ifp); 531} 532 533static void 534fwe_start(struct ifnet *ifp) 535{ 536 struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 537 int s; 538 539 GIANT_REQUIRED; 540 541 FWEDEBUG(ifp, "starting\n"); 542 543 if (fwe->dma_ch < 0) { 544 struct mbuf *m = NULL; 545 546 FWEDEBUG(ifp, "not ready\n"); 547 548 s = splimp(); 549 do { 550 IF_DEQUEUE(&ifp->if_snd, m); 551 if (m != NULL) 552 m_freem(m); 553 ifp->if_oerrors ++; 554 } while (m != NULL); 555 splx(s); 556 557 return; 558 } 559 560 s = splimp(); 561#if defined(__FreeBSD__) 562 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 563#else 564 ifp->if_flags |= IFF_OACTIVE; 565#endif 566 567 if (ifp->if_snd.ifq_len != 0) 568 fwe_as_output(fwe, ifp); 569 570#if defined(__FreeBSD__) 571 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 572#else 573 ifp->if_flags &= ~IFF_OACTIVE; 574#endif 575 splx(s); 576} 577 578#define HDR_LEN 4 579#ifndef ETHER_ALIGN 580#define ETHER_ALIGN 2 581#endif 582/* Async. stream output */ 583static void 584fwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp) 585{ 586 struct mbuf *m; 587 struct fw_xfer *xfer; 588 struct fw_xferq *xferq; 589 struct fw_pkt *fp; 590 int i = 0; 591 592 xfer = NULL; 593 xferq = fwe->fd.fc->atq; 594 while (xferq->queued < xferq->maxq - 1) { 595 xfer = STAILQ_FIRST(&fwe->xferlist); 596 if (xfer == NULL) { 597 printf("if_fwe: lack of xfer\n"); 598 return; 599 } 600 IF_DEQUEUE(&ifp->if_snd, m); 601 if (m == NULL) 602 break; 603 STAILQ_REMOVE_HEAD(&fwe->xferlist, link); 604#if defined(__DragonFly__) || __FreeBSD_version < 500000 605 if (ifp->if_bpf != NULL) 606 bpf_mtap(ifp, m); 607#else 608 BPF_MTAP(ifp, m); 609#endif 610 611 /* keep ip packet alignment for alpha */ 612 M_PREPEND(m, ETHER_ALIGN, M_DONTWAIT); 613 fp = &xfer->send.hdr; 614 *(uint32_t *)&xfer->send.hdr = *(int32_t *)&fwe->pkt_hdr; 615 fp->mode.stream.len = m->m_pkthdr.len; 616 xfer->mbuf = m; 617 xfer->send.pay_len = m->m_pkthdr.len; 618 619 if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) { 620 /* error */ 621 ifp->if_oerrors ++; 622 /* XXX set error code */ 623 fwe_output_callback(xfer); 624 } else { 625 ifp->if_opackets ++; 626 i++; 627 } 628 } 629#if 0 630 if (i > 1) 631 printf("%d queued\n", i); 632#endif 633 if (i > 0) 634 xferq->start(fwe->fd.fc); 635} 636 637/* Async. stream output */ 638static void 639fwe_as_input(struct fw_xferq *xferq) 640{ 641 struct mbuf *m, *m0; 642 struct ifnet *ifp; 643 struct fwe_softc *fwe; 644 struct fw_bulkxfer *sxfer; 645 struct fw_pkt *fp; 646 u_char *c; 647#if defined(__DragonFly__) || __FreeBSD_version < 500000 648 struct ether_header *eh; 649#endif 650 651 fwe = (struct fwe_softc *)xferq->sc; 652 ifp = fwe->eth_softc.ifp; 653 654 while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 655 STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 656 fp = mtod(sxfer->mbuf, struct fw_pkt *); 657 if (fwe->fd.fc->irx_post != NULL) 658 fwe->fd.fc->irx_post(fwe->fd.fc, fp->mode.ld); 659 m = sxfer->mbuf; 660 661 /* insert new rbuf */ 662 sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 663 if (m0 != NULL) { 664 m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 665 STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 666 } else 667 printf("fwe_as_input: m_getcl failed\n"); 668 669 if (sxfer->resp != 0 || fp->mode.stream.len < 670 ETHER_ALIGN + sizeof(struct ether_header)) { 671 m_freem(m); 672 ifp->if_ierrors ++; 673 continue; 674 } 675 676 m->m_data += HDR_LEN + ETHER_ALIGN; 677 c = mtod(m, char *); 678#if defined(__DragonFly__) || __FreeBSD_version < 500000 679 eh = (struct ether_header *)c; 680 m->m_data += sizeof(struct ether_header); 681 m->m_len = m->m_pkthdr.len = fp->mode.stream.len - ETHER_ALIGN 682 - sizeof(struct ether_header); 683#else 684 m->m_len = m->m_pkthdr.len = fp->mode.stream.len - ETHER_ALIGN; 685#endif 686 m->m_pkthdr.rcvif = ifp; 687#if 0 688 FWEDEBUG(ifp, "%02x %02x %02x %02x %02x %02x\n" 689 "%02x %02x %02x %02x %02x %02x\n" 690 "%02x %02x %02x %02x\n" 691 "%02x %02x %02x %02x\n" 692 "%02x %02x %02x %02x\n" 693 "%02x %02x %02x %02x\n", 694 c[0], c[1], c[2], c[3], c[4], c[5], 695 c[6], c[7], c[8], c[9], c[10], c[11], 696 c[12], c[13], c[14], c[15], 697 c[16], c[17], c[18], c[19], 698 c[20], c[21], c[22], c[23], 699 c[20], c[21], c[22], c[23] 700 ); 701#endif 702#if defined(__DragonFly__) || __FreeBSD_version < 500000 703 ether_input(ifp, eh, m); 704#else 705 (*ifp->if_input)(ifp, m); 706#endif 707 ifp->if_ipackets ++; 708 } 709 if (STAILQ_FIRST(&xferq->stfree) != NULL) 710 fwe->fd.fc->irx_enable(fwe->fd.fc, fwe->dma_ch); 711} 712 713 714static devclass_t fwe_devclass; 715 716static device_method_t fwe_methods[] = { 717 /* device interface */ 718 DEVMETHOD(device_identify, fwe_identify), 719 DEVMETHOD(device_probe, fwe_probe), 720 DEVMETHOD(device_attach, fwe_attach), 721 DEVMETHOD(device_detach, fwe_detach), 722 { 0, 0 } 723}; 724 725static driver_t fwe_driver = { 726 "fwe", 727 fwe_methods, 728 sizeof(struct fwe_softc), 729}; 730 731 732#ifdef __DragonFly__ 733DECLARE_DUMMY_MODULE(fwe); 734#endif 735DRIVER_MODULE(fwe, firewire, fwe_driver, fwe_devclass, 0, 0); 736MODULE_VERSION(fwe, 1); 737MODULE_DEPEND(fwe, firewire, 1, 1, 1); 738