if_fwe.c revision 121953
1103285Sikob/* 2113584Ssimokawa * Copyright (c) 2002-2003 3103285Sikob * Hidetoshi Shimokawa. All rights reserved. 4103285Sikob * 5103285Sikob * Redistribution and use in source and binary forms, with or without 6103285Sikob * modification, are permitted provided that the following conditions 7103285Sikob * are met: 8103285Sikob * 1. Redistributions of source code must retain the above copyright 9103285Sikob * notice, this list of conditions and the following disclaimer. 10103285Sikob * 2. Redistributions in binary form must reproduce the above copyright 11103285Sikob * notice, this list of conditions and the following disclaimer in the 12103285Sikob * documentation and/or other materials provided with the distribution. 13103285Sikob * 3. All advertising materials mentioning features or use of this software 14103285Sikob * must display the following acknowledgement: 15103285Sikob * 16103285Sikob * This product includes software developed by Hidetoshi Shimokawa. 17103285Sikob * 18103285Sikob * 4. Neither the name of the author nor the names of its contributors 19103285Sikob * may be used to endorse or promote products derived from this software 20103285Sikob * without specific prior written permission. 21103285Sikob * 22103285Sikob * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23103285Sikob * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24103285Sikob * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25103285Sikob * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26103285Sikob * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27103285Sikob * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28103285Sikob * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29103285Sikob * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30103285Sikob * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31103285Sikob * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32103285Sikob * SUCH DAMAGE. 33103285Sikob * 34103285Sikob * $FreeBSD: head/sys/dev/firewire/if_fwe.c 121953 2003-11-03 13:01:23Z simokawa $ 35103285Sikob */ 36103285Sikob 37103285Sikob#include "opt_inet.h" 38103285Sikob 39103285Sikob#include <sys/param.h> 40103285Sikob#include <sys/kernel.h> 41103285Sikob#include <sys/malloc.h> 42103285Sikob#include <sys/mbuf.h> 43103285Sikob#include <sys/socket.h> 44103285Sikob#include <sys/sockio.h> 45103285Sikob#include <sys/sysctl.h> 46103285Sikob#include <sys/systm.h> 47103285Sikob#include <sys/module.h> 48103285Sikob#include <sys/bus.h> 49113584Ssimokawa#include <machine/bus.h> 50103285Sikob 51103285Sikob#include <net/bpf.h> 52103285Sikob#include <net/ethernet.h> 53103285Sikob#include <net/if.h> 54103285Sikob#include <net/if_arp.h> 55103285Sikob#include <net/if_vlan_var.h> 56103285Sikob 57103285Sikob#include <dev/firewire/firewire.h> 58103285Sikob#include <dev/firewire/firewirereg.h> 59103285Sikob#include <dev/firewire/if_fwevar.h> 60103285Sikob 61103285Sikob#define FWEDEBUG if (fwedebug) printf 62111942Ssimokawa#define TX_MAX_QUEUE (FWMAXQUEUE - 1) 63111942Ssimokawa#define RX_MAX_QUEUE FWMAXQUEUE 64103285Sikob 65103285Sikob/* network interface */ 66103285Sikobstatic void fwe_start __P((struct ifnet *)); 67103285Sikobstatic int fwe_ioctl __P((struct ifnet *, u_long, caddr_t)); 68103285Sikobstatic void fwe_init __P((void *)); 69103285Sikob 70111942Ssimokawastatic void fwe_output_callback __P((struct fw_xfer *)); 71103285Sikobstatic void fwe_as_output __P((struct fwe_softc *, struct ifnet *)); 72103285Sikobstatic void fwe_as_input __P((struct fw_xferq *)); 73103285Sikob 74103285Sikobstatic int fwedebug = 0; 75103285Sikobstatic int stream_ch = 1; 76116139Ssimokawastatic int tx_speed = 2; 77103285Sikob 78108281SsimokawaMALLOC_DEFINE(M_FWE, "if_fwe", "Ethernet over FireWire interface"); 79103285SikobSYSCTL_INT(_debug, OID_AUTO, if_fwe_debug, CTLFLAG_RW, &fwedebug, 0, ""); 80103285SikobSYSCTL_DECL(_hw_firewire); 81103285SikobSYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD, 0, 82103285Sikob "Ethernet Emulation Subsystem"); 83103285SikobSYSCTL_INT(_hw_firewire_fwe, OID_AUTO, stream_ch, CTLFLAG_RW, &stream_ch, 0, 84103285Sikob "Stream channel to use"); 85116139SsimokawaSYSCTL_INT(_hw_firewire_fwe, OID_AUTO, tx_speed, CTLFLAG_RW, &tx_speed, 0, 86116139Ssimokawa "Transmission Speed"); 87103285Sikob 88103285Sikob#ifdef DEVICE_POLLING 89103285Sikob#define FWE_POLL_REGISTER(func, fwe, ifp) \ 90103285Sikob if (ether_poll_register(func, ifp)) { \ 91103285Sikob struct firewire_comm *fc = (fwe)->fd.fc; \ 92103285Sikob fc->set_intr(fc, 0); \ 93103285Sikob } 94103285Sikob 95103285Sikob#define FWE_POLL_DEREGISTER(fwe, ifp) \ 96103285Sikob do { \ 97103285Sikob struct firewire_comm *fc = (fwe)->fd.fc; \ 98103285Sikob ether_poll_deregister(ifp); \ 99103285Sikob fc->set_intr(fc, 1); \ 100103285Sikob } while(0) \ 101103285Sikob 102103285Sikobstatic poll_handler_t fwe_poll; 103103285Sikob 104103285Sikobstatic void 105103285Sikobfwe_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 106103285Sikob{ 107103285Sikob struct fwe_softc *fwe; 108103285Sikob struct firewire_comm *fc; 109103285Sikob 110103285Sikob fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 111103285Sikob fc = fwe->fd.fc; 112103285Sikob if (cmd == POLL_DEREGISTER) { 113103285Sikob /* enable interrupts */ 114103285Sikob fc->set_intr(fc, 1); 115103285Sikob return; 116103285Sikob } 117103285Sikob fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count); 118103285Sikob} 119103285Sikob#else 120103285Sikob#define FWE_POLL_REGISTER(func, fwe, ifp) 121103285Sikob#define FWE_POLL_DEREGISTER(fwe, ifp) 122103285Sikob#endif 123103285Sikobstatic void 124103285Sikobfwe_identify(driver_t *driver, device_t parent) 125103285Sikob{ 126121953Ssimokawa BUS_ADD_CHILD(parent, 0, "fwe", device_get_unit(parent)); 127103285Sikob} 128103285Sikob 129103285Sikobstatic int 130103285Sikobfwe_probe(device_t dev) 131103285Sikob{ 132103285Sikob device_t pa; 133103285Sikob 134103285Sikob pa = device_get_parent(dev); 135103285Sikob if(device_get_unit(dev) != device_get_unit(pa)){ 136103285Sikob return(ENXIO); 137103285Sikob } 138103285Sikob 139108281Ssimokawa device_set_desc(dev, "Ethernet over FireWire"); 140103285Sikob return (0); 141103285Sikob} 142103285Sikob 143103285Sikobstatic int 144103285Sikobfwe_attach(device_t dev) 145103285Sikob{ 146103285Sikob struct fwe_softc *fwe; 147103285Sikob struct ifnet *ifp; 148103285Sikob int unit, s; 149103285Sikob u_char *eaddr; 150109814Ssimokawa struct fw_eui64 *eui; 151103285Sikob 152103285Sikob fwe = ((struct fwe_softc *)device_get_softc(dev)); 153103285Sikob unit = device_get_unit(dev); 154103285Sikob 155103285Sikob bzero(fwe, sizeof(struct fwe_softc)); 156103285Sikob /* XXX */ 157103285Sikob fwe->stream_ch = stream_ch; 158103285Sikob fwe->dma_ch = -1; 159103285Sikob 160103285Sikob fwe->fd.fc = device_get_ivars(dev); 161103285Sikob fwe->fd.dev = dev; 162103285Sikob fwe->fd.post_explore = NULL; 163103285Sikob fwe->eth_softc.fwe = fwe; 164103285Sikob 165103285Sikob fwe->pkt_hdr.mode.stream.tcode = FWTCODE_STREAM; 166103285Sikob fwe->pkt_hdr.mode.stream.sy = 0; 167103285Sikob fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 168103285Sikob 169103285Sikob /* generate fake MAC address: first and last 3bytes from eui64 */ 170103285Sikob#define LOCAL (0x02) 171103285Sikob#define GROUP (0x01) 172103285Sikob eaddr = &fwe->eth_softc.arpcom.ac_enaddr[0]; 173109814Ssimokawa 174109814Ssimokawa eui = &fwe->fd.fc->eui; 175109814Ssimokawa eaddr[0] = (FW_EUI64_BYTE(eui, 0) | LOCAL) & ~GROUP; 176109814Ssimokawa eaddr[1] = FW_EUI64_BYTE(eui, 1); 177109814Ssimokawa eaddr[2] = FW_EUI64_BYTE(eui, 2); 178109814Ssimokawa eaddr[3] = FW_EUI64_BYTE(eui, 5); 179109814Ssimokawa eaddr[4] = FW_EUI64_BYTE(eui, 6); 180109814Ssimokawa eaddr[5] = FW_EUI64_BYTE(eui, 7); 181107653Ssimokawa printf("if_fwe%d: Fake Ethernet address: " 182107653Ssimokawa "%02x:%02x:%02x:%02x:%02x:%02x\n", unit, 183103285Sikob eaddr[0], eaddr[1], eaddr[2], eaddr[3], eaddr[4], eaddr[5]); 184103285Sikob 185103285Sikob /* fill the rest and attach interface */ 186103285Sikob ifp = &fwe->fwe_if; 187103285Sikob ifp->if_softc = &fwe->eth_softc; 188103285Sikob 189121953Ssimokawa if_initname(ifp, device_get_name(dev), unit); 190103285Sikob ifp->if_init = fwe_init; 191103285Sikob ifp->if_output = ether_output; 192103285Sikob ifp->if_start = fwe_start; 193103285Sikob ifp->if_ioctl = fwe_ioctl; 194103285Sikob ifp->if_mtu = ETHERMTU; 195103285Sikob ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST); 196111942Ssimokawa ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE; 197103285Sikob 198103285Sikob s = splimp(); 199108712Ssimokawa#if __FreeBSD_version >= 500000 200106937Ssam ether_ifattach(ifp, eaddr); 201108712Ssimokawa#else 202108712Ssimokawa ether_ifattach(ifp, 1); 203108712Ssimokawa#endif 204103285Sikob splx(s); 205103285Sikob 206103285Sikob /* Tell the upper layer(s) we support long frames. */ 207103285Sikob ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 208108712Ssimokawa#if __FreeBSD_version >= 500000 209106937Ssam ifp->if_capabilities |= IFCAP_VLAN_MTU; 210108712Ssimokawa#endif 211103285Sikob 212103285Sikob 213121816Sbrooks FWEDEBUG("interface %s created.\n", ifp->if_xname); 214103285Sikob return 0; 215103285Sikob} 216103285Sikob 217103285Sikobstatic void 218103285Sikobfwe_stop(struct fwe_softc *fwe) 219103285Sikob{ 220103285Sikob struct firewire_comm *fc; 221103285Sikob struct fw_xferq *xferq; 222103285Sikob struct ifnet *ifp = &fwe->fwe_if; 223111942Ssimokawa struct fw_xfer *xfer, *next; 224111942Ssimokawa int i; 225103285Sikob 226103285Sikob fc = fwe->fd.fc; 227103285Sikob 228103285Sikob FWE_POLL_DEREGISTER(fwe, ifp); 229103285Sikob 230103285Sikob if (fwe->dma_ch >= 0) { 231103285Sikob xferq = fc->ir[fwe->dma_ch]; 232103285Sikob 233103285Sikob if (xferq->flag & FWXFERQ_RUNNING) 234103285Sikob fc->irx_disable(fc, fwe->dma_ch); 235103285Sikob xferq->flag &= 236113584Ssimokawa ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 237113584Ssimokawa FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 238111942Ssimokawa xferq->hand = NULL; 239111942Ssimokawa 240111942Ssimokawa for (i = 0; i < xferq->bnchunk; i ++) 241111942Ssimokawa m_freem(xferq->bulkxfer[i].mbuf); 242111942Ssimokawa free(xferq->bulkxfer, M_FWE); 243111942Ssimokawa 244111942Ssimokawa for (xfer = STAILQ_FIRST(&fwe->xferlist); xfer != NULL; 245111942Ssimokawa xfer = next) { 246111942Ssimokawa next = STAILQ_NEXT(xfer, link); 247111942Ssimokawa fw_xfer_free(xfer); 248111942Ssimokawa } 249111942Ssimokawa STAILQ_INIT(&fwe->xferlist); 250111942Ssimokawa 251111942Ssimokawa xferq->bulkxfer = NULL; 252103285Sikob fwe->dma_ch = -1; 253103285Sikob } 254103285Sikob 255103285Sikob ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 256103285Sikob} 257103285Sikob 258103285Sikobstatic int 259103285Sikobfwe_detach(device_t dev) 260103285Sikob{ 261103285Sikob struct fwe_softc *fwe; 262103285Sikob int s; 263103285Sikob 264103285Sikob fwe = (struct fwe_softc *)device_get_softc(dev); 265103285Sikob s = splimp(); 266103285Sikob 267103285Sikob fwe_stop(fwe); 268108712Ssimokawa#if __FreeBSD_version >= 500000 269106937Ssam ether_ifdetach(&fwe->fwe_if); 270108712Ssimokawa#else 271108712Ssimokawa ether_ifdetach(&fwe->fwe_if, 1); 272108712Ssimokawa#endif 273103285Sikob 274103285Sikob splx(s); 275103285Sikob return 0; 276103285Sikob} 277103285Sikob 278103285Sikobstatic void 279103285Sikobfwe_init(void *arg) 280103285Sikob{ 281103285Sikob struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe; 282103285Sikob struct firewire_comm *fc; 283103285Sikob struct ifnet *ifp = &fwe->fwe_if; 284103285Sikob struct fw_xferq *xferq; 285111942Ssimokawa struct fw_xfer *xfer; 286113584Ssimokawa struct mbuf *m; 287103285Sikob int i; 288103285Sikob 289121816Sbrooks FWEDEBUG("initializing %s\n", ifp->if_xname); 290103285Sikob 291103285Sikob /* XXX keep promiscoud mode */ 292103285Sikob ifp->if_flags |= IFF_PROMISC; 293103285Sikob 294103285Sikob fc = fwe->fd.fc; 295103285Sikob#define START 0 296103285Sikob if (fwe->dma_ch < 0) { 297103285Sikob for (i = START; i < fc->nisodma; i ++) { 298103285Sikob xferq = fc->ir[i]; 299103285Sikob if ((xferq->flag & FWXFERQ_OPEN) == 0) 300118312Ssimokawa goto found; 301103285Sikob } 302118312Ssimokawa printf("no free dma channel\n"); 303118312Ssimokawa return; 304118312Ssimokawafound: 305103285Sikob fwe->dma_ch = i; 306103285Sikob fwe->stream_ch = stream_ch; 307103285Sikob fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 308103285Sikob /* allocate DMA channel and init packet mode */ 309113584Ssimokawa xferq->flag |= FWXFERQ_OPEN | FWXFERQ_EXTBUF | 310113584Ssimokawa FWXFERQ_HANDLER | FWXFERQ_STREAM; 311112400Ssimokawa xferq->flag &= ~0xff; 312103285Sikob xferq->flag |= fwe->stream_ch & 0xff; 313103285Sikob /* register fwe_input handler */ 314103285Sikob xferq->sc = (caddr_t) fwe; 315103285Sikob xferq->hand = fwe_as_input; 316111942Ssimokawa xferq->bnchunk = RX_MAX_QUEUE; 317111942Ssimokawa xferq->bnpacket = 1; 318111942Ssimokawa xferq->psize = MCLBYTES; 319111942Ssimokawa xferq->queued = 0; 320113584Ssimokawa xferq->buf = NULL; 321111942Ssimokawa xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 322113584Ssimokawa sizeof(struct fw_bulkxfer) * xferq->bnchunk, 323113584Ssimokawa M_FWE, M_WAITOK); 324111942Ssimokawa if (xferq->bulkxfer == NULL) { 325111942Ssimokawa printf("if_fwe: malloc failed\n"); 326111942Ssimokawa return; 327111942Ssimokawa } 328111942Ssimokawa STAILQ_INIT(&xferq->stvalid); 329111942Ssimokawa STAILQ_INIT(&xferq->stfree); 330111942Ssimokawa STAILQ_INIT(&xferq->stdma); 331111942Ssimokawa xferq->stproc = NULL; 332111942Ssimokawa for (i = 0; i < xferq->bnchunk; i ++) { 333113584Ssimokawa m = 334111942Ssimokawa#if __FreeBSD_version >= 500000 335111942Ssimokawa m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 336111942Ssimokawa#else 337111942Ssimokawa m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 338111942Ssimokawa#endif 339113584Ssimokawa xferq->bulkxfer[i].mbuf = m; 340113584Ssimokawa if (m != NULL) { 341113584Ssimokawa m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 342113584Ssimokawa STAILQ_INSERT_TAIL(&xferq->stfree, 343113584Ssimokawa &xferq->bulkxfer[i], link); 344113584Ssimokawa } else 345113584Ssimokawa printf("fwe_as_input: m_getcl failed\n"); 346111942Ssimokawa } 347111942Ssimokawa STAILQ_INIT(&fwe->xferlist); 348111942Ssimokawa for (i = 0; i < TX_MAX_QUEUE; i++) { 349111942Ssimokawa xfer = fw_xfer_alloc(M_FWE); 350111942Ssimokawa if (xfer == NULL) 351111942Ssimokawa break; 352120660Ssimokawa xfer->send.spd = tx_speed; 353111942Ssimokawa xfer->fc = fwe->fd.fc; 354111942Ssimokawa xfer->retry_req = fw_asybusy; 355111942Ssimokawa xfer->sc = (caddr_t)fwe; 356111942Ssimokawa xfer->act.hand = fwe_output_callback; 357111942Ssimokawa STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 358111942Ssimokawa } 359103285Sikob } else 360103285Sikob xferq = fc->ir[fwe->dma_ch]; 361103285Sikob 362103285Sikob 363103285Sikob /* start dma */ 364103285Sikob if ((xferq->flag & FWXFERQ_RUNNING) == 0) 365103285Sikob fc->irx_enable(fc, fwe->dma_ch); 366103285Sikob 367103285Sikob ifp->if_flags |= IFF_RUNNING; 368103285Sikob ifp->if_flags &= ~IFF_OACTIVE; 369103285Sikob 370103285Sikob FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 371103285Sikob#if 0 372103285Sikob /* attempt to start output */ 373103285Sikob fwe_start(ifp); 374103285Sikob#endif 375103285Sikob} 376103285Sikob 377103285Sikob 378103285Sikobstatic int 379103285Sikobfwe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 380103285Sikob{ 381103285Sikob struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 382103285Sikob struct ifstat *ifs = NULL; 383103285Sikob int s, error, len; 384103285Sikob 385103285Sikob switch (cmd) { 386103285Sikob case SIOCSIFFLAGS: 387103285Sikob s = splimp(); 388103285Sikob if (ifp->if_flags & IFF_UP) { 389103285Sikob if (!(ifp->if_flags & IFF_RUNNING)) 390103285Sikob fwe_init(&fwe->eth_softc); 391103285Sikob } else { 392103285Sikob if (ifp->if_flags & IFF_RUNNING) 393103285Sikob fwe_stop(fwe); 394103285Sikob } 395103285Sikob /* XXX keep promiscoud mode */ 396103285Sikob ifp->if_flags |= IFF_PROMISC; 397103285Sikob splx(s); 398103285Sikob break; 399103285Sikob case SIOCADDMULTI: 400103285Sikob case SIOCDELMULTI: 401108712Ssimokawa break; 402103285Sikob 403103285Sikob case SIOCGIFSTATUS: 404103285Sikob s = splimp(); 405103285Sikob ifs = (struct ifstat *)data; 406103285Sikob len = strlen(ifs->ascii); 407103285Sikob if (len < sizeof(ifs->ascii)) 408103285Sikob snprintf(ifs->ascii + len, 409103285Sikob sizeof(ifs->ascii) - len, 410103285Sikob "\tch %d dma %d\n", 411103285Sikob fwe->stream_ch, fwe->dma_ch); 412103285Sikob splx(s); 413108712Ssimokawa break; 414108712Ssimokawa#if __FreeBSD_version >= 500000 415103285Sikob default: 416108712Ssimokawa#else 417108712Ssimokawa case SIOCSIFADDR: 418108712Ssimokawa case SIOCGIFADDR: 419108712Ssimokawa case SIOCSIFMTU: 420108712Ssimokawa#endif 421106937Ssam s = splimp(); 422106937Ssam error = ether_ioctl(ifp, cmd, data); 423106937Ssam splx(s); 424106937Ssam return (error); 425108712Ssimokawa#if __FreeBSD_version < 500000 426108712Ssimokawa default: 427108712Ssimokawa return (EINVAL); 428108712Ssimokawa#endif 429103285Sikob } 430103285Sikob 431103285Sikob return (0); 432103285Sikob} 433103285Sikob 434103285Sikobstatic void 435111942Ssimokawafwe_output_callback(struct fw_xfer *xfer) 436111942Ssimokawa{ 437111942Ssimokawa struct fwe_softc *fwe; 438111942Ssimokawa struct ifnet *ifp; 439111942Ssimokawa int s; 440111942Ssimokawa 441111942Ssimokawa fwe = (struct fwe_softc *)xfer->sc; 442111942Ssimokawa ifp = &fwe->fwe_if; 443111942Ssimokawa /* XXX error check */ 444111942Ssimokawa FWEDEBUG("resp = %d\n", xfer->resp); 445111942Ssimokawa if (xfer->resp != 0) 446111942Ssimokawa ifp->if_oerrors ++; 447111942Ssimokawa 448111942Ssimokawa m_freem(xfer->mbuf); 449111942Ssimokawa fw_xfer_unload(xfer); 450113584Ssimokawa 451111942Ssimokawa s = splimp(); 452111942Ssimokawa STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 453111942Ssimokawa splx(s); 454113584Ssimokawa 455113584Ssimokawa /* for queue full */ 456111942Ssimokawa if (ifp->if_snd.ifq_head != NULL) 457111942Ssimokawa fwe_start(ifp); 458111942Ssimokawa} 459111942Ssimokawa 460111942Ssimokawastatic void 461103285Sikobfwe_start(struct ifnet *ifp) 462103285Sikob{ 463103285Sikob struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 464103285Sikob int s; 465103285Sikob 466121816Sbrooks FWEDEBUG("%s starting\n", ifp->if_xname); 467103285Sikob 468103285Sikob if (fwe->dma_ch < 0) { 469103285Sikob struct mbuf *m = NULL; 470103285Sikob 471121816Sbrooks FWEDEBUG("%s not ready.\n", ifp->if_xname); 472103285Sikob 473103285Sikob s = splimp(); 474103285Sikob do { 475103285Sikob IF_DEQUEUE(&ifp->if_snd, m); 476103285Sikob if (m != NULL) 477103285Sikob m_freem(m); 478103285Sikob ifp->if_oerrors ++; 479103285Sikob } while (m != NULL); 480103285Sikob splx(s); 481103285Sikob 482103285Sikob return; 483103285Sikob } 484103285Sikob 485103285Sikob s = splimp(); 486103285Sikob ifp->if_flags |= IFF_OACTIVE; 487103285Sikob 488103285Sikob if (ifp->if_snd.ifq_len != 0) 489103285Sikob fwe_as_output(fwe, ifp); 490103285Sikob 491103285Sikob ifp->if_flags &= ~IFF_OACTIVE; 492103285Sikob splx(s); 493103285Sikob} 494103285Sikob 495111942Ssimokawa#define HDR_LEN 4 496111942Ssimokawa#ifndef ETHER_ALIGN 497111942Ssimokawa#define ETHER_ALIGN 2 498103285Sikob#endif 499103285Sikob/* Async. stream output */ 500103285Sikobstatic void 501103285Sikobfwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp) 502103285Sikob{ 503103285Sikob struct mbuf *m; 504103285Sikob struct fw_xfer *xfer; 505103285Sikob struct fw_xferq *xferq; 506103285Sikob struct fw_pkt *fp; 507103285Sikob int i = 0; 508103285Sikob 509103285Sikob xfer = NULL; 510103285Sikob xferq = fwe->fd.fc->atq; 511111942Ssimokawa while (xferq->queued < xferq->maxq - 1) { 512111942Ssimokawa xfer = STAILQ_FIRST(&fwe->xferlist); 513111942Ssimokawa if (xfer == NULL) { 514111942Ssimokawa printf("if_fwe: lack of xfer\n"); 515111942Ssimokawa return; 516111942Ssimokawa } 517103285Sikob IF_DEQUEUE(&ifp->if_snd, m); 518103285Sikob if (m == NULL) 519103285Sikob break; 520111942Ssimokawa STAILQ_REMOVE_HEAD(&fwe->xferlist, link); 521108712Ssimokawa#if __FreeBSD_version >= 500000 522106937Ssam BPF_MTAP(ifp, m); 523108712Ssimokawa#else 524108712Ssimokawa if (ifp->if_bpf != NULL) 525108712Ssimokawa bpf_mtap(ifp, m); 526108712Ssimokawa#endif 527103285Sikob 528103285Sikob /* keep ip packet alignment for alpha */ 529111942Ssimokawa M_PREPEND(m, ETHER_ALIGN, M_DONTWAIT); 530120660Ssimokawa fp = &xfer->send.hdr; 531120660Ssimokawa *(u_int32_t *)&xfer->send.hdr = *(int32_t *)&fwe->pkt_hdr; 532113584Ssimokawa fp->mode.stream.len = m->m_pkthdr.len; 533103285Sikob xfer->mbuf = m; 534120660Ssimokawa xfer->send.pay_len = m->m_pkthdr.len; 535103285Sikob 536111942Ssimokawa if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) { 537103285Sikob /* error */ 538103285Sikob ifp->if_oerrors ++; 539103285Sikob /* XXX set error code */ 540103285Sikob fwe_output_callback(xfer); 541103285Sikob } else { 542103285Sikob ifp->if_opackets ++; 543111942Ssimokawa i++; 544103285Sikob } 545103285Sikob } 546103285Sikob#if 0 547103285Sikob if (i > 1) 548103285Sikob printf("%d queued\n", i); 549103285Sikob#endif 550111942Ssimokawa if (i > 0) 551111942Ssimokawa xferq->start(fwe->fd.fc); 552103285Sikob} 553103285Sikob 554103285Sikob/* Async. stream output */ 555103285Sikobstatic void 556103285Sikobfwe_as_input(struct fw_xferq *xferq) 557103285Sikob{ 558113584Ssimokawa struct mbuf *m, *m0; 559103285Sikob struct ifnet *ifp; 560103285Sikob struct fwe_softc *fwe; 561111942Ssimokawa struct fw_bulkxfer *sxfer; 562111942Ssimokawa struct fw_pkt *fp; 563103285Sikob u_char *c; 564111942Ssimokawa#if __FreeBSD_version < 500000 565111942Ssimokawa struct ether_header *eh; 566111942Ssimokawa#endif 567103285Sikob 568103285Sikob fwe = (struct fwe_softc *)xferq->sc; 569103285Sikob ifp = &fwe->fwe_if; 570103285Sikob#if 0 571103285Sikob FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 572103285Sikob#endif 573111942Ssimokawa while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 574111942Ssimokawa STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 575113584Ssimokawa fp = mtod(sxfer->mbuf, struct fw_pkt *); 576111942Ssimokawa if (fwe->fd.fc->irx_post != NULL) 577111942Ssimokawa fwe->fd.fc->irx_post(fwe->fd.fc, fp->mode.ld); 578111942Ssimokawa m = sxfer->mbuf; 579111942Ssimokawa 580119119Ssimokawa /* insert new rbuf */ 581113584Ssimokawa sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 582113584Ssimokawa if (m0 != NULL) { 583113584Ssimokawa m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 584113584Ssimokawa STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 585113584Ssimokawa } else 586113584Ssimokawa printf("fwe_as_input: m_getcl failed\n"); 587111942Ssimokawa 588119119Ssimokawa if (sxfer->resp != 0 || fp->mode.stream.len < 589119119Ssimokawa ETHER_ALIGN + sizeof(struct ether_header)) { 590119119Ssimokawa m_freem(m); 591119119Ssimokawa ifp->if_ierrors ++; 592119119Ssimokawa continue; 593119119Ssimokawa } 594119119Ssimokawa 595111942Ssimokawa m->m_data += HDR_LEN + ETHER_ALIGN; 596111942Ssimokawa c = mtod(m, char *); 597111942Ssimokawa#if __FreeBSD_version < 500000 598111942Ssimokawa eh = (struct ether_header *)c; 599111942Ssimokawa m->m_data += sizeof(struct ether_header); 600108712Ssimokawa#endif 601111942Ssimokawa m->m_len = m->m_pkthdr.len = 602113584Ssimokawa fp->mode.stream.len - ETHER_ALIGN; 603103285Sikob m->m_pkthdr.rcvif = ifp; 604103285Sikob#if 0 605103285Sikob FWEDEBUG("%02x %02x %02x %02x %02x %02x\n" 606103285Sikob "%02x %02x %02x %02x %02x %02x\n" 607103285Sikob "%02x %02x %02x %02x\n" 608103285Sikob "%02x %02x %02x %02x\n" 609103285Sikob "%02x %02x %02x %02x\n" 610103285Sikob "%02x %02x %02x %02x\n", 611103285Sikob c[0], c[1], c[2], c[3], c[4], c[5], 612103285Sikob c[6], c[7], c[8], c[9], c[10], c[11], 613103285Sikob c[12], c[13], c[14], c[15], 614103285Sikob c[16], c[17], c[18], c[19], 615103285Sikob c[20], c[21], c[22], c[23], 616103285Sikob c[20], c[21], c[22], c[23] 617103285Sikob ); 618103285Sikob#endif 619108712Ssimokawa#if __FreeBSD_version >= 500000 620106937Ssam (*ifp->if_input)(ifp, m); 621108712Ssimokawa#else 622108712Ssimokawa ether_input(ifp, eh, m); 623108712Ssimokawa#endif 624103285Sikob ifp->if_ipackets ++; 625103285Sikob } 626111942Ssimokawa if (STAILQ_FIRST(&xferq->stfree) != NULL) 627111942Ssimokawa fwe->fd.fc->irx_enable(fwe->fd.fc, fwe->dma_ch); 628103285Sikob} 629103285Sikob 630103285Sikob 631103285Sikobstatic devclass_t fwe_devclass; 632103285Sikob 633103285Sikobstatic device_method_t fwe_methods[] = { 634103285Sikob /* device interface */ 635103285Sikob DEVMETHOD(device_identify, fwe_identify), 636103285Sikob DEVMETHOD(device_probe, fwe_probe), 637103285Sikob DEVMETHOD(device_attach, fwe_attach), 638103285Sikob DEVMETHOD(device_detach, fwe_detach), 639103285Sikob { 0, 0 } 640103285Sikob}; 641103285Sikob 642103285Sikobstatic driver_t fwe_driver = { 643121953Ssimokawa "fwe", 644103285Sikob fwe_methods, 645103285Sikob sizeof(struct fwe_softc), 646103285Sikob}; 647103285Sikob 648103285Sikob 649113506SmdoddDRIVER_MODULE(fwe, firewire, fwe_driver, fwe_devclass, 0, 0); 650113506SmdoddMODULE_VERSION(fwe, 1); 651113506SmdoddMODULE_DEPEND(fwe, firewire, 1, 1, 1); 652