if_fwe.c revision 132430
140939Sdes/* 240939Sdes * Copyright (c) 2002-2003 340939Sdes * Hidetoshi Shimokawa. All rights reserved. 440939Sdes * 540939Sdes * Redistribution and use in source and binary forms, with or without 640939Sdes * modification, are permitted provided that the following conditions 740939Sdes * are met: 840939Sdes * 1. Redistributions of source code must retain the above copyright 940939Sdes * notice, this list of conditions and the following disclaimer. 1040939Sdes * 2. Redistributions in binary form must reproduce the above copyright 1140939Sdes * notice, this list of conditions and the following disclaimer in the 1240939Sdes * documentation and/or other materials provided with the distribution. 1340939Sdes * 3. All advertising materials mentioning features or use of this software 1440939Sdes * must display the following acknowledgement: 1540939Sdes * 1640939Sdes * This product includes software developed by Hidetoshi Shimokawa. 1740939Sdes * 1840939Sdes * 4. Neither the name of the author nor the names of its contributors 1940939Sdes * may be used to endorse or promote products derived from this software 2040939Sdes * without specific prior written permission. 2140939Sdes * 2240939Sdes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2340939Sdes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2440939Sdes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2540939Sdes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2640939Sdes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2740939Sdes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2850476Speter * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2940939Sdes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 3040939Sdes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3141862Sdes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3240939Sdes * SUCH DAMAGE. 3355557Sdes * 3440939Sdes * $FreeBSD: head/sys/dev/firewire/if_fwe.c 132430 2004-07-20 04:29:33Z simokawa $ 3540939Sdes */ 3640939Sdes 3740939Sdes#include "opt_inet.h" 3860924Sdes 3941862Sdes#include <sys/param.h> 4041862Sdes#include <sys/kernel.h> 4140939Sdes#include <sys/malloc.h> 4240939Sdes#include <sys/mbuf.h> 4340939Sdes#include <sys/socket.h> 4440939Sdes#include <sys/sockio.h> 4540939Sdes#include <sys/sysctl.h> 4640939Sdes#include <sys/systm.h> 4740975Sdes#include <sys/module.h> 4840939Sdes#include <sys/bus.h> 4940939Sdes#include <machine/bus.h> 5040939Sdes 5140939Sdes#include <net/bpf.h> 5240939Sdes#include <net/ethernet.h> 5340939Sdes#include <net/if.h> 5460737Sume#include <net/if_arp.h> 5560737Sume#ifdef __DragonFly__ 5660737Sume#include <net/vlan/if_vlan_var.h> 5760737Sume#include <bus/firewire/firewire.h> 5840975Sdes#include <bus/firewire/firewirereg.h> 5940939Sdes#include "if_fwevar.h" 6040939Sdes#else 6140939Sdes#include <net/if_vlan_var.h> 6240939Sdes 6340939Sdes#include <dev/firewire/firewire.h> 6440939Sdes#include <dev/firewire/firewirereg.h> 6540939Sdes#include <dev/firewire/if_fwevar.h> 6640939Sdes#endif 6760924Sdes 6840975Sdes#define FWEDEBUG if (fwedebug) if_printf 6940939Sdes#define TX_MAX_QUEUE (FWMAXQUEUE - 1) 7060924Sdes 7160924Sdes/* network interface */ 7260924Sdesstatic void fwe_start (struct ifnet *); 7340939Sdesstatic int fwe_ioctl (struct ifnet *, u_long, caddr_t); 7440939Sdesstatic void fwe_init (void *); 7540939Sdes 7640939Sdesstatic void fwe_output_callback (struct fw_xfer *); 7740939Sdesstatic void fwe_as_output (struct fwe_softc *, struct ifnet *); 7840939Sdesstatic void fwe_as_input (struct fw_xferq *); 7940939Sdes 8040939Sdesstatic int fwedebug = 0; 8160924Sdesstatic int stream_ch = 1; 8260924Sdesstatic int tx_speed = 2; 8360924Sdesstatic int rx_queue_len = FWMAXQUEUE; 8440939Sdes 8540939SdesMALLOC_DEFINE(M_FWE, "if_fwe", "Ethernet over FireWire interface"); 8640939SdesSYSCTL_INT(_debug, OID_AUTO, if_fwe_debug, CTLFLAG_RW, &fwedebug, 0, ""); 8740939SdesSYSCTL_DECL(_hw_firewire); 8840939SdesSYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD, 0, 8940939Sdes "Ethernet emulation subsystem"); 9040939SdesSYSCTL_INT(_hw_firewire_fwe, OID_AUTO, stream_ch, CTLFLAG_RW, &stream_ch, 0, 9140939Sdes "Stream channel to use"); 9241862SdesSYSCTL_INT(_hw_firewire_fwe, OID_AUTO, tx_speed, CTLFLAG_RW, &tx_speed, 0, 9341862Sdes "Transmission speed"); 9440975SdesSYSCTL_INT(_hw_firewire_fwe, OID_AUTO, rx_queue_len, CTLFLAG_RW, &rx_queue_len, 9540975Sdes 0, "Length of the receive queue"); 9640975Sdes 9741862SdesTUNABLE_INT("hw.firewire.fwe.stream_ch", &stream_ch); 9840975SdesTUNABLE_INT("hw.firewire.fwe.tx_speed", &tx_speed); 9940975SdesTUNABLE_INT("hw.firewire.fwe.rx_queue_len", &rx_queue_len); 10040975Sdes 10140975Sdes#ifdef DEVICE_POLLING 10240975Sdes#define FWE_POLL_REGISTER(func, fwe, ifp) \ 10340975Sdes if (ether_poll_register(func, ifp)) { \ 10441862Sdes struct firewire_comm *fc = (fwe)->fd.fc; \ 10540975Sdes fc->set_intr(fc, 0); \ 10640975Sdes } 10740975Sdes 10841862Sdes#define FWE_POLL_DEREGISTER(fwe, ifp) \ 10940975Sdes do { \ 11040975Sdes struct firewire_comm *fc = (fwe)->fd.fc; \ 11141862Sdes ether_poll_deregister(ifp); \ 11240975Sdes fc->set_intr(fc, 1); \ 11340975Sdes } while(0) \ 11440975Sdes 11541862Sdesstatic poll_handler_t fwe_poll; 11640975Sdes 11740975Sdesstatic void 11841862Sdesfwe_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 11940975Sdes{ 12040975Sdes struct fwe_softc *fwe; 12141862Sdes struct firewire_comm *fc; 12240975Sdes 12340975Sdes fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 12440975Sdes fc = fwe->fd.fc; 12540975Sdes if (cmd == POLL_DEREGISTER) { 12640975Sdes /* enable interrupts */ 12740975Sdes fc->set_intr(fc, 1); 12840975Sdes return; 12941862Sdes } 13040975Sdes fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count); 13140975Sdes} 13240975Sdes#else 13341862Sdes#define FWE_POLL_REGISTER(func, fwe, ifp) 13440975Sdes#define FWE_POLL_DEREGISTER(fwe, ifp) 13540975Sdes#endif 13641862Sdesstatic void 13740975Sdesfwe_identify(driver_t *driver, device_t parent) 13840975Sdes{ 13940975Sdes BUS_ADD_CHILD(parent, 0, "fwe", device_get_unit(parent)); 14041862Sdes} 14140975Sdes 14240975Sdesstatic int 14341862Sdesfwe_probe(device_t dev) 14440975Sdes{ 14560924Sdes device_t pa; 14640939Sdes 14740939Sdes pa = device_get_parent(dev); 14840939Sdes if(device_get_unit(dev) != device_get_unit(pa)){ 14941862Sdes return(ENXIO); 15041862Sdes } 15141862Sdes 15260924Sdes device_set_desc(dev, "Ethernet over FireWire"); 15341862Sdes return (0); 15441862Sdes} 15541862Sdes 15641862Sdesstatic int 15741862Sdesfwe_attach(device_t dev) 15860924Sdes{ 15941862Sdes struct fwe_softc *fwe; 16060928Sdes struct ifnet *ifp; 16141862Sdes int unit, s; 16241862Sdes u_char *eaddr; 16341862Sdes struct fw_eui64 *eui; 16440939Sdes 16540939Sdes fwe = ((struct fwe_softc *)device_get_softc(dev)); 16640939Sdes unit = device_get_unit(dev); 16740939Sdes 16840939Sdes bzero(fwe, sizeof(struct fwe_softc)); 16940939Sdes /* XXX */ 17060737Sume fwe->stream_ch = stream_ch; 17140939Sdes fwe->dma_ch = -1; 17260737Sume 17360737Sume fwe->fd.fc = device_get_ivars(dev); 17460737Sume if (tx_speed < 0) 17540939Sdes tx_speed = fwe->fd.fc->speed; 17662964Sdes 17741862Sdes fwe->fd.dev = dev; 17841862Sdes fwe->fd.post_explore = NULL; 17941862Sdes fwe->eth_softc.fwe = fwe; 18040939Sdes 18160737Sume fwe->pkt_hdr.mode.stream.tcode = FWTCODE_STREAM; 18260737Sume fwe->pkt_hdr.mode.stream.sy = 0; 18360737Sume fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 18460737Sume 18560737Sume /* generate fake MAC address: first and last 3bytes from eui64 */ 18660737Sume#define LOCAL (0x02) 18760737Sume#define GROUP (0x01) 18860737Sume eaddr = &fwe->eth_softc.arpcom.ac_enaddr[0]; 18940939Sdes 19040939Sdes eui = &fwe->fd.fc->eui; 19140939Sdes eaddr[0] = (FW_EUI64_BYTE(eui, 0) | LOCAL) & ~GROUP; 19241862Sdes eaddr[1] = FW_EUI64_BYTE(eui, 1); 19341862Sdes eaddr[2] = FW_EUI64_BYTE(eui, 2); 19441862Sdes eaddr[3] = FW_EUI64_BYTE(eui, 5); 19540939Sdes eaddr[4] = FW_EUI64_BYTE(eui, 6); 19660737Sume eaddr[5] = FW_EUI64_BYTE(eui, 7); 19760737Sume printf("if_fwe%d: Fake Ethernet address: " 19860737Sume "%02x:%02x:%02x:%02x:%02x:%02x\n", unit, 19960737Sume eaddr[0], eaddr[1], eaddr[2], eaddr[3], eaddr[4], eaddr[5]); 20060737Sume 20160737Sume /* fill the rest and attach interface */ 20260737Sume ifp = &fwe->fwe_if; 20360737Sume ifp->if_softc = &fwe->eth_softc; 20460737Sume 20540939Sdes#if __FreeBSD_version >= 501113 || defined(__DragonFly__) 20662911Sume if_initname(ifp, device_get_name(dev), unit); 20760737Sume#else 20840939Sdes ifp->if_unit = unit; 20940939Sdes ifp->if_name = "fwe"; 21040939Sdes#endif 21140939Sdes ifp->if_init = fwe_init; 21240939Sdes#if defined(__DragonFly__) || __FreeBSD_version < 500000 21340939Sdes ifp->if_output = ether_output; 21441989Sdes#endif 21541989Sdes ifp->if_start = fwe_start; 21655557Sdes ifp->if_ioctl = fwe_ioctl; 21755557Sdes ifp->if_mtu = ETHERMTU; 21855557Sdes ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST); 21955557Sdes ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE; 22055557Sdes 22155557Sdes s = splimp(); 22255557Sdes#if defined(__DragonFly__) || __FreeBSD_version < 500000 22355557Sdes ether_ifattach(ifp, 1); 22455557Sdes#else 22555557Sdes ether_ifattach(ifp, eaddr); 22655557Sdes#endif 22755557Sdes splx(s); 22855557Sdes 22955557Sdes /* Tell the upper layer(s) we support long frames. */ 23055557Sdes ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 23155557Sdes#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 23255557Sdes ifp->if_capabilities |= IFCAP_VLAN_MTU; 23355557Sdes ifp->if_capenable |= IFCAP_VLAN_MTU; 23455557Sdes#endif 23555557Sdes 23655557Sdes 23755557Sdes FWEDEBUG(ifp, "interface created\n"); 23855557Sdes return 0; 23955557Sdes} 24055557Sdes 24155557Sdesstatic void 24255557Sdesfwe_stop(struct fwe_softc *fwe) 24355557Sdes{ 24455557Sdes struct firewire_comm *fc; 24555557Sdes struct fw_xferq *xferq; 24655557Sdes struct ifnet *ifp = &fwe->fwe_if; 24755557Sdes struct fw_xfer *xfer, *next; 24855557Sdes int i; 24955557Sdes 25055557Sdes fc = fwe->fd.fc; 25155557Sdes 25255557Sdes FWE_POLL_DEREGISTER(fwe, ifp); 25355557Sdes 25455557Sdes if (fwe->dma_ch >= 0) { 25555557Sdes xferq = fc->ir[fwe->dma_ch]; 25655557Sdes 25755557Sdes if (xferq->flag & FWXFERQ_RUNNING) 25855557Sdes fc->irx_disable(fc, fwe->dma_ch); 25955557Sdes xferq->flag &= 26055557Sdes ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 26155557Sdes FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 26255557Sdes xferq->hand = NULL; 26355557Sdes 26455557Sdes for (i = 0; i < xferq->bnchunk; i ++) 26555557Sdes m_freem(xferq->bulkxfer[i].mbuf); 26655557Sdes free(xferq->bulkxfer, M_FWE); 26755557Sdes 26855557Sdes for (xfer = STAILQ_FIRST(&fwe->xferlist); xfer != NULL; 26955557Sdes xfer = next) { 27055557Sdes next = STAILQ_NEXT(xfer, link); 27155557Sdes fw_xfer_free(xfer); 27255557Sdes } 27355557Sdes STAILQ_INIT(&fwe->xferlist); 27455557Sdes 27555557Sdes xferq->bulkxfer = NULL; 27655557Sdes fwe->dma_ch = -1; 27755557Sdes } 27855557Sdes 27955557Sdes ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 28055557Sdes} 28155557Sdes 28255557Sdesstatic int 28355557Sdesfwe_detach(device_t dev) 28455557Sdes{ 28555557Sdes struct fwe_softc *fwe; 28655557Sdes int s; 28755557Sdes 28855557Sdes fwe = (struct fwe_softc *)device_get_softc(dev); 28955557Sdes s = splimp(); 29055557Sdes 29155557Sdes fwe_stop(fwe); 29255557Sdes#if defined(__DragonFly__) || __FreeBSD_version < 500000 29362964Sdes ether_ifdetach(&fwe->fwe_if, 1); 29455557Sdes#else 29555557Sdes ether_ifdetach(&fwe->fwe_if); 29655557Sdes#endif 29755557Sdes 29841989Sdes splx(s); 29941989Sdes return 0; 30041989Sdes} 30141989Sdes 30241989Sdesstatic void 30341989Sdesfwe_init(void *arg) 30441989Sdes{ 30541989Sdes struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe; 30641989Sdes struct firewire_comm *fc; 30741989Sdes struct ifnet *ifp = &fwe->fwe_if; 30841989Sdes struct fw_xferq *xferq; 30941989Sdes struct fw_xfer *xfer; 31041989Sdes struct mbuf *m; 31141989Sdes int i; 31241989Sdes 31341989Sdes FWEDEBUG(ifp, "initializing\n"); 31441989Sdes 31541989Sdes /* XXX keep promiscoud mode */ 31641989Sdes ifp->if_flags |= IFF_PROMISC; 31741989Sdes 31841989Sdes fc = fwe->fd.fc; 31941989Sdes#define START 0 32041989Sdes if (fwe->dma_ch < 0) { 32141989Sdes for (i = START; i < fc->nisodma; i ++) { 32241989Sdes xferq = fc->ir[i]; 32341989Sdes if ((xferq->flag & FWXFERQ_OPEN) == 0) 32441989Sdes goto found; 32541989Sdes } 32641989Sdes printf("no free dma channel\n"); 32741989Sdes return; 32841989Sdesfound: 32941989Sdes fwe->dma_ch = i; 33041989Sdes fwe->stream_ch = stream_ch; 33141989Sdes fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 33241989Sdes /* allocate DMA channel and init packet mode */ 33341989Sdes xferq->flag |= FWXFERQ_OPEN | FWXFERQ_EXTBUF | 33441989Sdes FWXFERQ_HANDLER | FWXFERQ_STREAM; 33541989Sdes xferq->flag &= ~0xff; 33641989Sdes xferq->flag |= fwe->stream_ch & 0xff; 33741989Sdes /* register fwe_input handler */ 338 xferq->sc = (caddr_t) fwe; 339 xferq->hand = fwe_as_input; 340 xferq->bnchunk = rx_queue_len; 341 xferq->bnpacket = 1; 342 xferq->psize = MCLBYTES; 343 xferq->queued = 0; 344 xferq->buf = NULL; 345 xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 346 sizeof(struct fw_bulkxfer) * xferq->bnchunk, 347 M_FWE, M_WAITOK); 348 if (xferq->bulkxfer == NULL) { 349 printf("if_fwe: malloc failed\n"); 350 return; 351 } 352 STAILQ_INIT(&xferq->stvalid); 353 STAILQ_INIT(&xferq->stfree); 354 STAILQ_INIT(&xferq->stdma); 355 xferq->stproc = NULL; 356 for (i = 0; i < xferq->bnchunk; i ++) { 357 m = 358#if defined(__DragonFly__) || __FreeBSD_version < 500000 359 m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 360#else 361 m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 362#endif 363 xferq->bulkxfer[i].mbuf = m; 364 if (m != NULL) { 365 m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 366 STAILQ_INSERT_TAIL(&xferq->stfree, 367 &xferq->bulkxfer[i], link); 368 } else 369 printf("fwe_as_input: m_getcl failed\n"); 370 } 371 STAILQ_INIT(&fwe->xferlist); 372 for (i = 0; i < TX_MAX_QUEUE; i++) { 373 xfer = fw_xfer_alloc(M_FWE); 374 if (xfer == NULL) 375 break; 376 xfer->send.spd = tx_speed; 377 xfer->fc = fwe->fd.fc; 378 xfer->retry_req = fw_asybusy; 379 xfer->sc = (caddr_t)fwe; 380 xfer->act.hand = fwe_output_callback; 381 STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 382 } 383 } else 384 xferq = fc->ir[fwe->dma_ch]; 385 386 387 /* start dma */ 388 if ((xferq->flag & FWXFERQ_RUNNING) == 0) 389 fc->irx_enable(fc, fwe->dma_ch); 390 391 ifp->if_flags |= IFF_RUNNING; 392 ifp->if_flags &= ~IFF_OACTIVE; 393 394 FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 395#if 0 396 /* attempt to start output */ 397 fwe_start(ifp); 398#endif 399} 400 401 402static int 403fwe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 404{ 405 struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 406 struct ifstat *ifs = NULL; 407 int s, error, len; 408 409 switch (cmd) { 410 case SIOCSIFFLAGS: 411 s = splimp(); 412 if (ifp->if_flags & IFF_UP) { 413 if (!(ifp->if_flags & IFF_RUNNING)) 414 fwe_init(&fwe->eth_softc); 415 } else { 416 if (ifp->if_flags & IFF_RUNNING) 417 fwe_stop(fwe); 418 } 419 /* XXX keep promiscoud mode */ 420 ifp->if_flags |= IFF_PROMISC; 421 splx(s); 422 break; 423 case SIOCADDMULTI: 424 case SIOCDELMULTI: 425 break; 426 427 case SIOCGIFSTATUS: 428 s = splimp(); 429 ifs = (struct ifstat *)data; 430 len = strlen(ifs->ascii); 431 if (len < sizeof(ifs->ascii)) 432 snprintf(ifs->ascii + len, 433 sizeof(ifs->ascii) - len, 434 "\tch %d dma %d\n", 435 fwe->stream_ch, fwe->dma_ch); 436 splx(s); 437 break; 438#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 439 default: 440#else 441 case SIOCSIFADDR: 442 case SIOCGIFADDR: 443 case SIOCSIFMTU: 444#endif 445 s = splimp(); 446 error = ether_ioctl(ifp, cmd, data); 447 splx(s); 448 return (error); 449#if defined(__DragonFly__) || __FreeBSD_version < 500000 450 default: 451 return (EINVAL); 452#endif 453 } 454 455 return (0); 456} 457 458static void 459fwe_output_callback(struct fw_xfer *xfer) 460{ 461 struct fwe_softc *fwe; 462 struct ifnet *ifp; 463 int s; 464 465 fwe = (struct fwe_softc *)xfer->sc; 466 ifp = &fwe->fwe_if; 467 /* XXX error check */ 468 FWEDEBUG(ifp, "resp = %d\n", xfer->resp); 469 if (xfer->resp != 0) 470 ifp->if_oerrors ++; 471 472 m_freem(xfer->mbuf); 473 fw_xfer_unload(xfer); 474 475 s = splimp(); 476 STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 477 splx(s); 478 479 /* for queue full */ 480 if (ifp->if_snd.ifq_head != NULL) 481 fwe_start(ifp); 482} 483 484static void 485fwe_start(struct ifnet *ifp) 486{ 487 struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 488 int s; 489 490 FWEDEBUG(ifp, "starting\n"); 491 492 if (fwe->dma_ch < 0) { 493 struct mbuf *m = NULL; 494 495 FWEDEBUG(ifp, "not ready\n"); 496 497 s = splimp(); 498 do { 499 IF_DEQUEUE(&ifp->if_snd, m); 500 if (m != NULL) 501 m_freem(m); 502 ifp->if_oerrors ++; 503 } while (m != NULL); 504 splx(s); 505 506 return; 507 } 508 509 s = splimp(); 510 ifp->if_flags |= IFF_OACTIVE; 511 512 if (ifp->if_snd.ifq_len != 0) 513 fwe_as_output(fwe, ifp); 514 515 ifp->if_flags &= ~IFF_OACTIVE; 516 splx(s); 517} 518 519#define HDR_LEN 4 520#ifndef ETHER_ALIGN 521#define ETHER_ALIGN 2 522#endif 523/* Async. stream output */ 524static void 525fwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp) 526{ 527 struct mbuf *m; 528 struct fw_xfer *xfer; 529 struct fw_xferq *xferq; 530 struct fw_pkt *fp; 531 int i = 0; 532 533 xfer = NULL; 534 xferq = fwe->fd.fc->atq; 535 while (xferq->queued < xferq->maxq - 1) { 536 xfer = STAILQ_FIRST(&fwe->xferlist); 537 if (xfer == NULL) { 538 printf("if_fwe: lack of xfer\n"); 539 return; 540 } 541 IF_DEQUEUE(&ifp->if_snd, m); 542 if (m == NULL) 543 break; 544 STAILQ_REMOVE_HEAD(&fwe->xferlist, link); 545#if defined(__DragonFly__) || __FreeBSD_version < 500000 546 if (ifp->if_bpf != NULL) 547 bpf_mtap(ifp, m); 548#else 549 BPF_MTAP(ifp, m); 550#endif 551 552 /* keep ip packet alignment for alpha */ 553 M_PREPEND(m, ETHER_ALIGN, M_DONTWAIT); 554 fp = &xfer->send.hdr; 555 *(uint32_t *)&xfer->send.hdr = *(int32_t *)&fwe->pkt_hdr; 556 fp->mode.stream.len = m->m_pkthdr.len; 557 xfer->mbuf = m; 558 xfer->send.pay_len = m->m_pkthdr.len; 559 560 if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) { 561 /* error */ 562 ifp->if_oerrors ++; 563 /* XXX set error code */ 564 fwe_output_callback(xfer); 565 } else { 566 ifp->if_opackets ++; 567 i++; 568 } 569 } 570#if 0 571 if (i > 1) 572 printf("%d queued\n", i); 573#endif 574 if (i > 0) 575 xferq->start(fwe->fd.fc); 576} 577 578/* Async. stream output */ 579static void 580fwe_as_input(struct fw_xferq *xferq) 581{ 582 struct mbuf *m, *m0; 583 struct ifnet *ifp; 584 struct fwe_softc *fwe; 585 struct fw_bulkxfer *sxfer; 586 struct fw_pkt *fp; 587 u_char *c; 588#if defined(__DragonFly__) || __FreeBSD_version < 500000 589 struct ether_header *eh; 590#endif 591 592 fwe = (struct fwe_softc *)xferq->sc; 593 ifp = &fwe->fwe_if; 594#if 0 595 FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 596#endif 597 while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 598 STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 599 fp = mtod(sxfer->mbuf, struct fw_pkt *); 600 if (fwe->fd.fc->irx_post != NULL) 601 fwe->fd.fc->irx_post(fwe->fd.fc, fp->mode.ld); 602 m = sxfer->mbuf; 603 604 /* insert new rbuf */ 605 sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 606 if (m0 != NULL) { 607 m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 608 STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 609 } else 610 printf("fwe_as_input: m_getcl failed\n"); 611 612 if (sxfer->resp != 0 || fp->mode.stream.len < 613 ETHER_ALIGN + sizeof(struct ether_header)) { 614 m_freem(m); 615 ifp->if_ierrors ++; 616 continue; 617 } 618 619 m->m_data += HDR_LEN + ETHER_ALIGN; 620 c = mtod(m, char *); 621#if defined(__DragonFly__) || __FreeBSD_version < 500000 622 eh = (struct ether_header *)c; 623 m->m_data += sizeof(struct ether_header); 624 m->m_len = m->m_pkthdr.len = fp->mode.stream.len - ETHER_ALIGN 625 - sizeof(struct ether_header); 626#else 627 m->m_len = m->m_pkthdr.len = fp->mode.stream.len - ETHER_ALIGN; 628#endif 629 m->m_pkthdr.rcvif = ifp; 630#if 0 631 FWEDEBUG(ifp, "%02x %02x %02x %02x %02x %02x\n" 632 "%02x %02x %02x %02x %02x %02x\n" 633 "%02x %02x %02x %02x\n" 634 "%02x %02x %02x %02x\n" 635 "%02x %02x %02x %02x\n" 636 "%02x %02x %02x %02x\n", 637 c[0], c[1], c[2], c[3], c[4], c[5], 638 c[6], c[7], c[8], c[9], c[10], c[11], 639 c[12], c[13], c[14], c[15], 640 c[16], c[17], c[18], c[19], 641 c[20], c[21], c[22], c[23], 642 c[20], c[21], c[22], c[23] 643 ); 644#endif 645#if defined(__DragonFly__) || __FreeBSD_version < 500000 646 ether_input(ifp, eh, m); 647#else 648 (*ifp->if_input)(ifp, m); 649#endif 650 ifp->if_ipackets ++; 651 } 652 if (STAILQ_FIRST(&xferq->stfree) != NULL) 653 fwe->fd.fc->irx_enable(fwe->fd.fc, fwe->dma_ch); 654} 655 656 657static devclass_t fwe_devclass; 658 659static device_method_t fwe_methods[] = { 660 /* device interface */ 661 DEVMETHOD(device_identify, fwe_identify), 662 DEVMETHOD(device_probe, fwe_probe), 663 DEVMETHOD(device_attach, fwe_attach), 664 DEVMETHOD(device_detach, fwe_detach), 665 { 0, 0 } 666}; 667 668static driver_t fwe_driver = { 669 "fwe", 670 fwe_methods, 671 sizeof(struct fwe_softc), 672}; 673 674 675#ifdef __DragonFly__ 676DECLARE_DUMMY_MODULE(fwe); 677#endif 678DRIVER_MODULE(fwe, firewire, fwe_driver, fwe_devclass, 0, 0); 679MODULE_VERSION(fwe, 1); 680MODULE_DEPEND(fwe, firewire, 1, 1, 1); 681