if_fwe.c revision 121816
1254721Semaste/* 2254721Semaste * Copyright (c) 2002-2003 3353358Sdim * Hidetoshi Shimokawa. All rights reserved. 4353358Sdim * 5353358Sdim * Redistribution and use in source and binary forms, with or without 6254721Semaste * modification, are permitted provided that the following conditions 7254721Semaste * are met: 8254721Semaste * 1. Redistributions of source code must retain the above copyright 9254721Semaste * notice, this list of conditions and the following disclaimer. 10254721Semaste * 2. Redistributions in binary form must reproduce the above copyright 11254721Semaste * notice, this list of conditions and the following disclaimer in the 12254721Semaste * documentation and/or other materials provided with the distribution. 13254721Semaste * 3. All advertising materials mentioning features or use of this software 14341825Sdim * must display the following acknowledgement: 15341825Sdim * 16341825Sdim * This product includes software developed by Hidetoshi Shimokawa. 17258054Semaste * 18258054Semaste * 4. Neither the name of the author nor the names of its contributors 19258054Semaste * may be used to endorse or promote products derived from this software 20258054Semaste * without specific prior written permission. 21258054Semaste * 22258054Semaste * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23321369Sdim * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24321369Sdim * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25296417Sdim * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26254721Semaste * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27314564Sdim * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28254721Semaste * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29314564Sdim * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30254721Semaste * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31254721Semaste * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32254721Semaste * SUCH DAMAGE. 33254721Semaste * 34254721Semaste * $FreeBSD: head/sys/dev/firewire/if_fwe.c 121816 2003-10-31 18:32:15Z brooks $ 35254721Semaste */ 36254721Semaste 37314564Sdim#include "opt_inet.h" 38353358Sdim 39353358Sdim#include <sys/param.h> 40314564Sdim#include <sys/kernel.h> 41296417Sdim#include <sys/malloc.h> 42314564Sdim#include <sys/mbuf.h> 43296417Sdim#include <sys/socket.h> 44314564Sdim#include <sys/sockio.h> 45314564Sdim#include <sys/sysctl.h> 46314564Sdim#include <sys/systm.h> 47314564Sdim#include <sys/module.h> 48254721Semaste#include <sys/bus.h> 49258054Semaste#include <machine/bus.h> 50314564Sdim 51258054Semaste#include <net/bpf.h> 52314564Sdim#include <net/ethernet.h> 53258054Semaste#include <net/if.h> 54314564Sdim#include <net/if_arp.h> 55296417Sdim#include <net/if_vlan_var.h> 56254721Semaste 57314564Sdim#include <dev/firewire/firewire.h> 58254721Semaste#include <dev/firewire/firewirereg.h> 59254721Semaste#include <dev/firewire/if_fwevar.h> 60314564Sdim 61314564Sdim#define FWEDEBUG if (fwedebug) printf 62314564Sdim#define TX_MAX_QUEUE (FWMAXQUEUE - 1) 63254721Semaste#define RX_MAX_QUEUE FWMAXQUEUE 64314564Sdim 65254721Semaste/* network interface */ 66254721Semastestatic void fwe_start __P((struct ifnet *)); 67314564Sdimstatic int fwe_ioctl __P((struct ifnet *, u_long, caddr_t)); 68254721Semastestatic void fwe_init __P((void *)); 69353358Sdim 70353358Sdimstatic void fwe_output_callback __P((struct fw_xfer *)); 71254721Semastestatic void fwe_as_output __P((struct fwe_softc *, struct ifnet *)); 72254721Semastestatic void fwe_as_input __P((struct fw_xferq *)); 73314564Sdim 74314564Sdimstatic int fwedebug = 0; 75254721Semastestatic int stream_ch = 1; 76254721Semastestatic int tx_speed = 2; 77314564Sdim 78314564SdimMALLOC_DEFINE(M_FWE, "if_fwe", "Ethernet over FireWire interface"); 79314564SdimSYSCTL_INT(_debug, OID_AUTO, if_fwe_debug, CTLFLAG_RW, &fwedebug, 0, ""); 80254721SemasteSYSCTL_DECL(_hw_firewire); 81314564SdimSYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD, 0, 82254721Semaste "Ethernet Emulation Subsystem"); 83314564SdimSYSCTL_INT(_hw_firewire_fwe, OID_AUTO, stream_ch, CTLFLAG_RW, &stream_ch, 0, 84254721Semaste "Stream channel to use"); 85314564SdimSYSCTL_INT(_hw_firewire_fwe, OID_AUTO, tx_speed, CTLFLAG_RW, &tx_speed, 0, 86314564Sdim "Transmission Speed"); 87254721Semaste 88314564Sdim#ifdef DEVICE_POLLING 89314564Sdim#define FWE_POLL_REGISTER(func, fwe, ifp) \ 90254721Semaste if (ether_poll_register(func, ifp)) { \ 91314564Sdim struct firewire_comm *fc = (fwe)->fd.fc; \ 92314564Sdim fc->set_intr(fc, 0); \ 93254721Semaste } 94314564Sdim 95314564Sdim#define FWE_POLL_DEREGISTER(fwe, ifp) \ 96314564Sdim do { \ 97254721Semaste struct firewire_comm *fc = (fwe)->fd.fc; \ 98254721Semaste ether_poll_deregister(ifp); \ 99314564Sdim fc->set_intr(fc, 1); \ 100296417Sdim } while(0) \ 101254721Semaste 102314564Sdimstatic poll_handler_t fwe_poll; 103254721Semaste 104254721Semastestatic void 105314564Sdimfwe_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 106254721Semaste{ 107296417Sdim struct fwe_softc *fwe; 108254721Semaste struct firewire_comm *fc; 109314564Sdim 110314564Sdim fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 111314564Sdim fc = fwe->fd.fc; 112296417Sdim if (cmd == POLL_DEREGISTER) { 113254721Semaste /* enable interrupts */ 114314564Sdim fc->set_intr(fc, 1); 115314564Sdim return; 116254721Semaste } 117314564Sdim fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count); 118314564Sdim} 119314564Sdim#else 120296417Sdim#define FWE_POLL_REGISTER(func, fwe, ifp) 121254721Semaste#define FWE_POLL_DEREGISTER(fwe, ifp) 122314564Sdim#endif 123314564Sdimstatic void 124314564Sdimfwe_identify(driver_t *driver, device_t parent) 125314564Sdim{ 126314564Sdim BUS_ADD_CHILD(parent, 0, "if_fwe", device_get_unit(parent)); 127314564Sdim} 128314564Sdim 129254721Semastestatic int 130314564Sdimfwe_probe(device_t dev) 131254721Semaste{ 132314564Sdim device_t pa; 133314564Sdim 134254721Semaste pa = device_get_parent(dev); 135314564Sdim if(device_get_unit(dev) != device_get_unit(pa)){ 136314564Sdim return(ENXIO); 137314564Sdim } 138314564Sdim 139254721Semaste device_set_desc(dev, "Ethernet over FireWire"); 140314564Sdim return (0); 141314564Sdim} 142314564Sdim 143314564Sdimstatic int 144314564Sdimfwe_attach(device_t dev) 145314564Sdim{ 146314564Sdim struct fwe_softc *fwe; 147254721Semaste struct ifnet *ifp; 148314564Sdim int unit, s; 149254721Semaste u_char *eaddr; 150314564Sdim struct fw_eui64 *eui; 151254721Semaste 152314564Sdim fwe = ((struct fwe_softc *)device_get_softc(dev)); 153254721Semaste unit = device_get_unit(dev); 154314564Sdim 155314564Sdim bzero(fwe, sizeof(struct fwe_softc)); 156254721Semaste /* XXX */ 157314564Sdim fwe->stream_ch = stream_ch; 158314564Sdim fwe->dma_ch = -1; 159254721Semaste 160314564Sdim fwe->fd.fc = device_get_ivars(dev); 161314564Sdim fwe->fd.dev = dev; 162254721Semaste fwe->fd.post_explore = NULL; 163254721Semaste fwe->eth_softc.fwe = fwe; 164314564Sdim 165254721Semaste fwe->pkt_hdr.mode.stream.tcode = FWTCODE_STREAM; 166254721Semaste fwe->pkt_hdr.mode.stream.sy = 0; 167314564Sdim fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 168314564Sdim 169254721Semaste /* generate fake MAC address: first and last 3bytes from eui64 */ 170314564Sdim#define LOCAL (0x02) 171314564Sdim#define GROUP (0x01) 172314564Sdim eaddr = &fwe->eth_softc.arpcom.ac_enaddr[0]; 173314564Sdim 174314564Sdim eui = &fwe->fd.fc->eui; 175314564Sdim eaddr[0] = (FW_EUI64_BYTE(eui, 0) | LOCAL) & ~GROUP; 176314564Sdim eaddr[1] = FW_EUI64_BYTE(eui, 1); 177314564Sdim eaddr[2] = FW_EUI64_BYTE(eui, 2); 178314564Sdim eaddr[3] = FW_EUI64_BYTE(eui, 5); 179314564Sdim eaddr[4] = FW_EUI64_BYTE(eui, 6); 180314564Sdim eaddr[5] = FW_EUI64_BYTE(eui, 7); 181254721Semaste printf("if_fwe%d: Fake Ethernet address: " 182254721Semaste "%02x:%02x:%02x:%02x:%02x:%02x\n", unit, 183314564Sdim eaddr[0], eaddr[1], eaddr[2], eaddr[3], eaddr[4], eaddr[5]); 184314564Sdim 185314564Sdim /* fill the rest and attach interface */ 186314564Sdim ifp = &fwe->fwe_if; 187314564Sdim ifp->if_softc = &fwe->eth_softc; 188314564Sdim 189314564Sdim if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 190314564Sdim ifp->if_init = fwe_init; 191314564Sdim ifp->if_output = ether_output; 192314564Sdim ifp->if_start = fwe_start; 193314564Sdim ifp->if_ioctl = fwe_ioctl; 194254721Semaste ifp->if_mtu = ETHERMTU; 195254721Semaste ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST); 196314564Sdim ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE; 197314564Sdim 198314564Sdim s = splimp(); 199314564Sdim#if __FreeBSD_version >= 500000 200314564Sdim ether_ifattach(ifp, eaddr); 201254721Semaste#else 202254721Semaste ether_ifattach(ifp, 1); 203314564Sdim#endif 204314564Sdim splx(s); 205314564Sdim 206314564Sdim /* Tell the upper layer(s) we support long frames. */ 207314564Sdim ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 208314564Sdim#if __FreeBSD_version >= 500000 209254721Semaste ifp->if_capabilities |= IFCAP_VLAN_MTU; 210254721Semaste#endif 211314564Sdim 212314564Sdim 213314564Sdim FWEDEBUG("interface %s created.\n", ifp->if_xname); 214254721Semaste return 0; 215254721Semaste} 216314564Sdim 217314564Sdimstatic void 218314564Sdimfwe_stop(struct fwe_softc *fwe) 219314564Sdim{ 220254721Semaste struct firewire_comm *fc; 221254721Semaste struct fw_xferq *xferq; 222314564Sdim struct ifnet *ifp = &fwe->fwe_if; 223314564Sdim struct fw_xfer *xfer, *next; 224314564Sdim int i; 225314564Sdim 226314564Sdim fc = fwe->fd.fc; 227254721Semaste 228254721Semaste FWE_POLL_DEREGISTER(fwe, ifp); 229314564Sdim 230314564Sdim if (fwe->dma_ch >= 0) { 231314564Sdim xferq = fc->ir[fwe->dma_ch]; 232254721Semaste 233254721Semaste if (xferq->flag & FWXFERQ_RUNNING) 234314564Sdim fc->irx_disable(fc, fwe->dma_ch); 235314564Sdim xferq->flag &= 236254721Semaste ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 237254721Semaste FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 238314564Sdim xferq->hand = NULL; 239314564Sdim 240254721Semaste for (i = 0; i < xferq->bnchunk; i ++) 241254721Semaste m_freem(xferq->bulkxfer[i].mbuf); 242314564Sdim free(xferq->bulkxfer, M_FWE); 243314564Sdim 244288943Sdim for (xfer = STAILQ_FIRST(&fwe->xferlist); xfer != NULL; 245254721Semaste xfer = next) { 246314564Sdim next = STAILQ_NEXT(xfer, link); 247314564Sdim fw_xfer_free(xfer); 248314564Sdim } 249314564Sdim STAILQ_INIT(&fwe->xferlist); 250314564Sdim 251314564Sdim xferq->bulkxfer = NULL; 252254721Semaste fwe->dma_ch = -1; 253254721Semaste } 254314564Sdim 255314564Sdim ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 256314564Sdim} 257314564Sdim 258314564Sdimstatic int 259314564Sdimfwe_detach(device_t dev) 260314564Sdim{ 261314564Sdim struct fwe_softc *fwe; 262254721Semaste int s; 263254721Semaste 264314564Sdim fwe = (struct fwe_softc *)device_get_softc(dev); 265314564Sdim s = splimp(); 266314564Sdim 267314564Sdim fwe_stop(fwe); 268314564Sdim#if __FreeBSD_version >= 500000 269314564Sdim ether_ifdetach(&fwe->fwe_if); 270314564Sdim#else 271314564Sdim ether_ifdetach(&fwe->fwe_if, 1); 272254721Semaste#endif 273254721Semaste 274314564Sdim splx(s); 275314564Sdim return 0; 276314564Sdim} 277314564Sdim 278314564Sdimstatic void 279314564Sdimfwe_init(void *arg) 280314564Sdim{ 281314564Sdim struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe; 282254721Semaste struct firewire_comm *fc; 283254721Semaste struct ifnet *ifp = &fwe->fwe_if; 284314564Sdim struct fw_xferq *xferq; 285314564Sdim struct fw_xfer *xfer; 286314564Sdim struct mbuf *m; 287314564Sdim int i; 288314564Sdim 289314564Sdim FWEDEBUG("initializing %s\n", ifp->if_xname); 290314564Sdim 291314564Sdim /* XXX keep promiscoud mode */ 292254721Semaste ifp->if_flags |= IFF_PROMISC; 293254721Semaste 294314564Sdim fc = fwe->fd.fc; 295314564Sdim#define START 0 296314564Sdim if (fwe->dma_ch < 0) { 297314564Sdim for (i = START; i < fc->nisodma; i ++) { 298314564Sdim xferq = fc->ir[i]; 299314564Sdim if ((xferq->flag & FWXFERQ_OPEN) == 0) 300314564Sdim goto found; 301314564Sdim } 302314564Sdim printf("no free dma channel\n"); 303254721Semaste return; 304254721Semastefound: 305314564Sdim fwe->dma_ch = i; 306314564Sdim fwe->stream_ch = stream_ch; 307254721Semaste fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 308254721Semaste /* allocate DMA channel and init packet mode */ 309314564Sdim xferq->flag |= FWXFERQ_OPEN | FWXFERQ_EXTBUF | 310314564Sdim FWXFERQ_HANDLER | FWXFERQ_STREAM; 311254721Semaste xferq->flag &= ~0xff; 312254721Semaste xferq->flag |= fwe->stream_ch & 0xff; 313314564Sdim /* register fwe_input handler */ 314314564Sdim xferq->sc = (caddr_t) fwe; 315314564Sdim xferq->hand = fwe_as_input; 316254721Semaste xferq->bnchunk = RX_MAX_QUEUE; 317254721Semaste xferq->bnpacket = 1; 318314564Sdim xferq->psize = MCLBYTES; 319314564Sdim xferq->queued = 0; 320314564Sdim xferq->buf = NULL; 321254721Semaste xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 322254721Semaste sizeof(struct fw_bulkxfer) * xferq->bnchunk, 323314564Sdim M_FWE, M_WAITOK); 324314564Sdim if (xferq->bulkxfer == NULL) { 325314564Sdim printf("if_fwe: malloc failed\n"); 326254721Semaste return; 327254721Semaste } 328314564Sdim STAILQ_INIT(&xferq->stvalid); 329314564Sdim STAILQ_INIT(&xferq->stfree); 330314564Sdim STAILQ_INIT(&xferq->stdma); 331254721Semaste xferq->stproc = NULL; 332254721Semaste for (i = 0; i < xferq->bnchunk; i ++) { 333314564Sdim m = 334314564Sdim#if __FreeBSD_version >= 500000 335314564Sdim m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 336254721Semaste#else 337254721Semaste m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 338314564Sdim#endif 339314564Sdim xferq->bulkxfer[i].mbuf = m; 340314564Sdim if (m != NULL) { 341254721Semaste m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 342254721Semaste STAILQ_INSERT_TAIL(&xferq->stfree, 343314564Sdim &xferq->bulkxfer[i], link); 344314564Sdim } else 345314564Sdim printf("fwe_as_input: m_getcl failed\n"); 346254721Semaste } 347254721Semaste STAILQ_INIT(&fwe->xferlist); 348314564Sdim for (i = 0; i < TX_MAX_QUEUE; i++) { 349314564Sdim xfer = fw_xfer_alloc(M_FWE); 350254721Semaste if (xfer == NULL) 351254721Semaste break; 352314564Sdim xfer->send.spd = tx_speed; 353314564Sdim xfer->fc = fwe->fd.fc; 354314564Sdim xfer->retry_req = fw_asybusy; 355254721Semaste xfer->sc = (caddr_t)fwe; 356254721Semaste xfer->act.hand = fwe_output_callback; 357314564Sdim STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 358314564Sdim } 359314564Sdim } else 360254721Semaste xferq = fc->ir[fwe->dma_ch]; 361254721Semaste 362314564Sdim 363314564Sdim /* start dma */ 364254721Semaste if ((xferq->flag & FWXFERQ_RUNNING) == 0) 365254721Semaste fc->irx_enable(fc, fwe->dma_ch); 366314564Sdim 367314564Sdim ifp->if_flags |= IFF_RUNNING; 368314564Sdim ifp->if_flags &= ~IFF_OACTIVE; 369254721Semaste 370314564Sdim FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 371254721Semaste#if 0 372314564Sdim /* attempt to start output */ 373314564Sdim fwe_start(ifp); 374314564Sdim#endif 375314564Sdim} 376254721Semaste 377314564Sdim 378314564Sdimstatic int 379254721Semastefwe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 380314564Sdim{ 381314564Sdim struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 382314564Sdim struct ifstat *ifs = NULL; 383314564Sdim int s, error, len; 384314564Sdim 385314564Sdim switch (cmd) { 386254721Semaste case SIOCSIFFLAGS: 387314564Sdim s = splimp(); 388314564Sdim if (ifp->if_flags & IFF_UP) { 389314564Sdim if (!(ifp->if_flags & IFF_RUNNING)) 390314564Sdim fwe_init(&fwe->eth_softc); 391254721Semaste } else { 392314564Sdim if (ifp->if_flags & IFF_RUNNING) 393314564Sdim fwe_stop(fwe); 394314564Sdim } 395314564Sdim /* XXX keep promiscoud mode */ 396314564Sdim ifp->if_flags |= IFF_PROMISC; 397254721Semaste splx(s); 398314564Sdim break; 399314564Sdim case SIOCADDMULTI: 400314564Sdim case SIOCDELMULTI: 401314564Sdim break; 402314564Sdim 403314564Sdim case SIOCGIFSTATUS: 404314564Sdim s = splimp(); 405314564Sdim ifs = (struct ifstat *)data; 406314564Sdim len = strlen(ifs->ascii); 407314564Sdim if (len < sizeof(ifs->ascii)) 408254721Semaste snprintf(ifs->ascii + len, 409314564Sdim sizeof(ifs->ascii) - len, 410314564Sdim "\tch %d dma %d\n", 411314564Sdim fwe->stream_ch, fwe->dma_ch); 412314564Sdim splx(s); 413314564Sdim break; 414254721Semaste#if __FreeBSD_version >= 500000 415314564Sdim default: 416314564Sdim#else 417314564Sdim case SIOCSIFADDR: 418314564Sdim case SIOCGIFADDR: 419314564Sdim case SIOCSIFMTU: 420314564Sdim#endif 421314564Sdim s = splimp(); 422254721Semaste error = ether_ioctl(ifp, cmd, data); 423314564Sdim splx(s); 424314564Sdim return (error); 425314564Sdim#if __FreeBSD_version < 500000 426314564Sdim default: 427296417Sdim return (EINVAL); 428314564Sdim#endif 429314564Sdim } 430314564Sdim 431314564Sdim return (0); 432314564Sdim} 433296417Sdim 434314564Sdimstatic void 435314564Sdimfwe_output_callback(struct fw_xfer *xfer) 436254721Semaste{ 437296417Sdim struct fwe_softc *fwe; 438314564Sdim struct ifnet *ifp; 439254721Semaste int s; 440314564Sdim 441254721Semaste fwe = (struct fwe_softc *)xfer->sc; 442314564Sdim ifp = &fwe->fwe_if; 443254721Semaste /* XXX error check */ 444314564Sdim FWEDEBUG("resp = %d\n", xfer->resp); 445254721Semaste if (xfer->resp != 0) 446314564Sdim ifp->if_oerrors ++; 447314564Sdim 448314564Sdim m_freem(xfer->mbuf); 449314564Sdim fw_xfer_unload(xfer); 450254721Semaste 451314564Sdim s = splimp(); 452314564Sdim STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 453314564Sdim splx(s); 454314564Sdim 455254721Semaste /* for queue full */ 456353358Sdim if (ifp->if_snd.ifq_head != NULL) 457353358Sdim fwe_start(ifp); 458254721Semaste} 459254721Semaste 460314564Sdimstatic void 461258054Semastefwe_start(struct ifnet *ifp) 462314564Sdim{ 463258054Semaste struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 464314564Sdim int s; 465258054Semaste 466314564Sdim FWEDEBUG("%s starting\n", ifp->if_xname); 467314564Sdim 468314564Sdim if (fwe->dma_ch < 0) { 469314564Sdim struct mbuf *m = NULL; 470258054Semaste 471314564Sdim FWEDEBUG("%s not ready.\n", ifp->if_xname); 472258054Semaste 473314564Sdim s = splimp(); 474258054Semaste do { 475314564Sdim IF_DEQUEUE(&ifp->if_snd, m); 476314564Sdim if (m != NULL) 477254721Semaste m_freem(m); 478254721Semaste ifp->if_oerrors ++; 479314564Sdim } while (m != NULL); 480254721Semaste splx(s); 481314564Sdim 482296417Sdim return; 483314564Sdim } 484296417Sdim 485314564Sdim s = splimp(); 486254721Semaste ifp->if_flags |= IFF_OACTIVE; 487254721Semaste 488314564Sdim if (ifp->if_snd.ifq_len != 0) 489254721Semaste fwe_as_output(fwe, ifp); 490314564Sdim 491254721Semaste ifp->if_flags &= ~IFF_OACTIVE; 492314564Sdim splx(s); 493314564Sdim} 494314564Sdim 495314564Sdim#define HDR_LEN 4 496314564Sdim#ifndef ETHER_ALIGN 497314564Sdim#define ETHER_ALIGN 2 498314564Sdim#endif 499314564Sdim/* Async. stream output */ 500314564Sdimstatic void 501314564Sdimfwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp) 502314564Sdim{ 503314564Sdim struct mbuf *m; 504314564Sdim struct fw_xfer *xfer; 505314564Sdim struct fw_xferq *xferq; 506314564Sdim struct fw_pkt *fp; 507314564Sdim int i = 0; 508314564Sdim 509314564Sdim xfer = NULL; 510314564Sdim xferq = fwe->fd.fc->atq; 511314564Sdim while (xferq->queued < xferq->maxq - 1) { 512314564Sdim xfer = STAILQ_FIRST(&fwe->xferlist); 513314564Sdim if (xfer == NULL) { 514314564Sdim printf("if_fwe: lack of xfer\n"); 515314564Sdim return; 516314564Sdim } 517314564Sdim IF_DEQUEUE(&ifp->if_snd, m); 518314564Sdim if (m == NULL) 519314564Sdim break; 520314564Sdim STAILQ_REMOVE_HEAD(&fwe->xferlist, link); 521314564Sdim#if __FreeBSD_version >= 500000 522314564Sdim BPF_MTAP(ifp, m); 523314564Sdim#else 524314564Sdim if (ifp->if_bpf != NULL) 525314564Sdim bpf_mtap(ifp, m); 526314564Sdim#endif 527314564Sdim 528314564Sdim /* keep ip packet alignment for alpha */ 529314564Sdim M_PREPEND(m, ETHER_ALIGN, M_DONTWAIT); 530314564Sdim fp = &xfer->send.hdr; 531314564Sdim *(u_int32_t *)&xfer->send.hdr = *(int32_t *)&fwe->pkt_hdr; 532314564Sdim fp->mode.stream.len = m->m_pkthdr.len; 533314564Sdim xfer->mbuf = m; 534314564Sdim xfer->send.pay_len = m->m_pkthdr.len; 535314564Sdim 536314564Sdim if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) { 537314564Sdim /* error */ 538314564Sdim ifp->if_oerrors ++; 539314564Sdim /* XXX set error code */ 540314564Sdim fwe_output_callback(xfer); 541254721Semaste } else { 542314564Sdim ifp->if_opackets ++; 543254721Semaste i++; 544314564Sdim } 545254721Semaste } 546314564Sdim#if 0 547314564Sdim if (i > 1) 548314564Sdim printf("%d queued\n", i); 549314564Sdim#endif 550314564Sdim if (i > 0) 551254721Semaste xferq->start(fwe->fd.fc); 552314564Sdim} 553314564Sdim 554254721Semaste/* Async. stream output */ 555314564Sdimstatic void 556314564Sdimfwe_as_input(struct fw_xferq *xferq) 557314564Sdim{ 558314564Sdim struct mbuf *m, *m0; 559314564Sdim struct ifnet *ifp; 560314564Sdim struct fwe_softc *fwe; 561314564Sdim struct fw_bulkxfer *sxfer; 562254721Semaste struct fw_pkt *fp; 563254721Semaste u_char *c; 564314564Sdim#if __FreeBSD_version < 500000 565314564Sdim struct ether_header *eh; 566314564Sdim#endif 567314564Sdim 568314564Sdim fwe = (struct fwe_softc *)xferq->sc; 569254721Semaste ifp = &fwe->fwe_if; 570314564Sdim#if 0 571254721Semaste FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 572314564Sdim#endif 573254721Semaste while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 574254721Semaste STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 575314564Sdim fp = mtod(sxfer->mbuf, struct fw_pkt *); 576314564Sdim if (fwe->fd.fc->irx_post != NULL) 577314564Sdim fwe->fd.fc->irx_post(fwe->fd.fc, fp->mode.ld); 578314564Sdim m = sxfer->mbuf; 579254721Semaste 580254721Semaste /* insert new rbuf */ 581314564Sdim sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 582314564Sdim if (m0 != NULL) { 583314564Sdim m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 584314564Sdim STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 585254721Semaste } else 586254721Semaste printf("fwe_as_input: m_getcl failed\n"); 587314564Sdim 588314564Sdim if (sxfer->resp != 0 || fp->mode.stream.len < 589314564Sdim ETHER_ALIGN + sizeof(struct ether_header)) { 590254721Semaste m_freem(m); 591254721Semaste ifp->if_ierrors ++; 592314564Sdim continue; 593314564Sdim } 594314564Sdim 595254721Semaste m->m_data += HDR_LEN + ETHER_ALIGN; 596254721Semaste c = mtod(m, char *); 597314564Sdim#if __FreeBSD_version < 500000 598314564Sdim eh = (struct ether_header *)c; 599314564Sdim m->m_data += sizeof(struct ether_header); 600254721Semaste#endif 601254721Semaste m->m_len = m->m_pkthdr.len = 602314564Sdim fp->mode.stream.len - ETHER_ALIGN; 603314564Sdim m->m_pkthdr.rcvif = ifp; 604314564Sdim#if 0 605254721Semaste FWEDEBUG("%02x %02x %02x %02x %02x %02x\n" 606254721Semaste "%02x %02x %02x %02x %02x %02x\n" 607254721Semaste "%02x %02x %02x %02x\n" 608254721Semaste "%02x %02x %02x %02x\n" 609296417Sdim "%02x %02x %02x %02x\n" 610 "%02x %02x %02x %02x\n", 611 c[0], c[1], c[2], c[3], c[4], c[5], 612 c[6], c[7], c[8], c[9], c[10], c[11], 613 c[12], c[13], c[14], c[15], 614 c[16], c[17], c[18], c[19], 615 c[20], c[21], c[22], c[23], 616 c[20], c[21], c[22], c[23] 617 ); 618#endif 619#if __FreeBSD_version >= 500000 620 (*ifp->if_input)(ifp, m); 621#else 622 ether_input(ifp, eh, m); 623#endif 624 ifp->if_ipackets ++; 625 } 626 if (STAILQ_FIRST(&xferq->stfree) != NULL) 627 fwe->fd.fc->irx_enable(fwe->fd.fc, fwe->dma_ch); 628} 629 630 631static devclass_t fwe_devclass; 632 633static device_method_t fwe_methods[] = { 634 /* device interface */ 635 DEVMETHOD(device_identify, fwe_identify), 636 DEVMETHOD(device_probe, fwe_probe), 637 DEVMETHOD(device_attach, fwe_attach), 638 DEVMETHOD(device_detach, fwe_detach), 639 { 0, 0 } 640}; 641 642static driver_t fwe_driver = { 643 "if_fwe", 644 fwe_methods, 645 sizeof(struct fwe_softc), 646}; 647 648 649DRIVER_MODULE(fwe, firewire, fwe_driver, fwe_devclass, 0, 0); 650MODULE_VERSION(fwe, 1); 651MODULE_DEPEND(fwe, firewire, 1, 1, 1); 652