if_fwe.c revision 124251
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 124251 2004-01-08 14:58:09Z 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 61122161Ssimokawa#define FWEDEBUG if (fwedebug) if_printf 62111942Ssimokawa#define TX_MAX_QUEUE (FWMAXQUEUE - 1) 63103285Sikob 64103285Sikob/* network interface */ 65124169Ssimokawastatic void fwe_start (struct ifnet *); 66124169Ssimokawastatic int fwe_ioctl (struct ifnet *, u_long, caddr_t); 67124169Ssimokawastatic void fwe_init (void *); 68103285Sikob 69124169Ssimokawastatic void fwe_output_callback (struct fw_xfer *); 70124169Ssimokawastatic void fwe_as_output (struct fwe_softc *, struct ifnet *); 71124169Ssimokawastatic void fwe_as_input (struct fw_xferq *); 72103285Sikob 73103285Sikobstatic int fwedebug = 0; 74103285Sikobstatic int stream_ch = 1; 75116139Ssimokawastatic int tx_speed = 2; 76122603Ssimokawastatic int rx_queue_len = FWMAXQUEUE; 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, 82122603Ssimokawa "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, 86122603Ssimokawa "Transmission speed"); 87122603SsimokawaSYSCTL_INT(_hw_firewire_fwe, OID_AUTO, rx_queue_len, CTLFLAG_RW, &rx_queue_len, 88122603Ssimokawa 0, "Length of the receive queue"); 89103285Sikob 90122603SsimokawaTUNABLE_INT("hw.firewire.fwe.stream_ch", &stream_ch); 91122603SsimokawaTUNABLE_INT("hw.firewire.fwe.tx_speed", &tx_speed); 92122603SsimokawaTUNABLE_INT("hw.firewire.fwe.rx_queue_len", &rx_queue_len); 93122603Ssimokawa 94103285Sikob#ifdef DEVICE_POLLING 95103285Sikob#define FWE_POLL_REGISTER(func, fwe, ifp) \ 96103285Sikob if (ether_poll_register(func, ifp)) { \ 97103285Sikob struct firewire_comm *fc = (fwe)->fd.fc; \ 98103285Sikob fc->set_intr(fc, 0); \ 99103285Sikob } 100103285Sikob 101103285Sikob#define FWE_POLL_DEREGISTER(fwe, ifp) \ 102103285Sikob do { \ 103103285Sikob struct firewire_comm *fc = (fwe)->fd.fc; \ 104103285Sikob ether_poll_deregister(ifp); \ 105103285Sikob fc->set_intr(fc, 1); \ 106103285Sikob } while(0) \ 107103285Sikob 108103285Sikobstatic poll_handler_t fwe_poll; 109103285Sikob 110103285Sikobstatic void 111103285Sikobfwe_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 112103285Sikob{ 113103285Sikob struct fwe_softc *fwe; 114103285Sikob struct firewire_comm *fc; 115103285Sikob 116103285Sikob fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 117103285Sikob fc = fwe->fd.fc; 118103285Sikob if (cmd == POLL_DEREGISTER) { 119103285Sikob /* enable interrupts */ 120103285Sikob fc->set_intr(fc, 1); 121103285Sikob return; 122103285Sikob } 123103285Sikob fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count); 124103285Sikob} 125103285Sikob#else 126103285Sikob#define FWE_POLL_REGISTER(func, fwe, ifp) 127103285Sikob#define FWE_POLL_DEREGISTER(fwe, ifp) 128103285Sikob#endif 129103285Sikobstatic void 130103285Sikobfwe_identify(driver_t *driver, device_t parent) 131103285Sikob{ 132121953Ssimokawa BUS_ADD_CHILD(parent, 0, "fwe", device_get_unit(parent)); 133103285Sikob} 134103285Sikob 135103285Sikobstatic int 136103285Sikobfwe_probe(device_t dev) 137103285Sikob{ 138103285Sikob device_t pa; 139103285Sikob 140103285Sikob pa = device_get_parent(dev); 141103285Sikob if(device_get_unit(dev) != device_get_unit(pa)){ 142103285Sikob return(ENXIO); 143103285Sikob } 144103285Sikob 145108281Ssimokawa device_set_desc(dev, "Ethernet over FireWire"); 146103285Sikob return (0); 147103285Sikob} 148103285Sikob 149103285Sikobstatic int 150103285Sikobfwe_attach(device_t dev) 151103285Sikob{ 152103285Sikob struct fwe_softc *fwe; 153103285Sikob struct ifnet *ifp; 154103285Sikob int unit, s; 155103285Sikob u_char *eaddr; 156109814Ssimokawa struct fw_eui64 *eui; 157103285Sikob 158103285Sikob fwe = ((struct fwe_softc *)device_get_softc(dev)); 159103285Sikob unit = device_get_unit(dev); 160103285Sikob 161103285Sikob bzero(fwe, sizeof(struct fwe_softc)); 162103285Sikob /* XXX */ 163103285Sikob fwe->stream_ch = stream_ch; 164103285Sikob fwe->dma_ch = -1; 165103285Sikob 166103285Sikob fwe->fd.fc = device_get_ivars(dev); 167124251Ssimokawa if (tx_speed < 0) 168124251Ssimokawa tx_speed = fwe->fd.fc->speed; 169124251Ssimokawa 170103285Sikob fwe->fd.dev = dev; 171103285Sikob fwe->fd.post_explore = NULL; 172103285Sikob fwe->eth_softc.fwe = fwe; 173103285Sikob 174103285Sikob fwe->pkt_hdr.mode.stream.tcode = FWTCODE_STREAM; 175103285Sikob fwe->pkt_hdr.mode.stream.sy = 0; 176103285Sikob fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 177103285Sikob 178103285Sikob /* generate fake MAC address: first and last 3bytes from eui64 */ 179103285Sikob#define LOCAL (0x02) 180103285Sikob#define GROUP (0x01) 181103285Sikob eaddr = &fwe->eth_softc.arpcom.ac_enaddr[0]; 182109814Ssimokawa 183109814Ssimokawa eui = &fwe->fd.fc->eui; 184109814Ssimokawa eaddr[0] = (FW_EUI64_BYTE(eui, 0) | LOCAL) & ~GROUP; 185109814Ssimokawa eaddr[1] = FW_EUI64_BYTE(eui, 1); 186109814Ssimokawa eaddr[2] = FW_EUI64_BYTE(eui, 2); 187109814Ssimokawa eaddr[3] = FW_EUI64_BYTE(eui, 5); 188109814Ssimokawa eaddr[4] = FW_EUI64_BYTE(eui, 6); 189109814Ssimokawa eaddr[5] = FW_EUI64_BYTE(eui, 7); 190107653Ssimokawa printf("if_fwe%d: Fake Ethernet address: " 191107653Ssimokawa "%02x:%02x:%02x:%02x:%02x:%02x\n", unit, 192103285Sikob eaddr[0], eaddr[1], eaddr[2], eaddr[3], eaddr[4], eaddr[5]); 193103285Sikob 194103285Sikob /* fill the rest and attach interface */ 195103285Sikob ifp = &fwe->fwe_if; 196103285Sikob ifp->if_softc = &fwe->eth_softc; 197103285Sikob 198122212Ssimokawa#if __FreeBSD_version >= 501113 199121953Ssimokawa if_initname(ifp, device_get_name(dev), unit); 200122212Ssimokawa#else 201122212Ssimokawa ifp->if_unit = unit; 202122212Ssimokawa ifp->if_name = "fwe"; 203122212Ssimokawa#endif 204103285Sikob ifp->if_init = fwe_init; 205103285Sikob ifp->if_output = ether_output; 206103285Sikob ifp->if_start = fwe_start; 207103285Sikob ifp->if_ioctl = fwe_ioctl; 208103285Sikob ifp->if_mtu = ETHERMTU; 209103285Sikob ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST); 210111942Ssimokawa ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE; 211103285Sikob 212103285Sikob s = splimp(); 213108712Ssimokawa#if __FreeBSD_version >= 500000 214106937Ssam ether_ifattach(ifp, eaddr); 215108712Ssimokawa#else 216108712Ssimokawa ether_ifattach(ifp, 1); 217108712Ssimokawa#endif 218103285Sikob splx(s); 219103285Sikob 220103285Sikob /* Tell the upper layer(s) we support long frames. */ 221103285Sikob ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 222108712Ssimokawa#if __FreeBSD_version >= 500000 223106937Ssam ifp->if_capabilities |= IFCAP_VLAN_MTU; 224108712Ssimokawa#endif 225103285Sikob 226103285Sikob 227122161Ssimokawa FWEDEBUG(ifp, "interface created\n"); 228103285Sikob return 0; 229103285Sikob} 230103285Sikob 231103285Sikobstatic void 232103285Sikobfwe_stop(struct fwe_softc *fwe) 233103285Sikob{ 234103285Sikob struct firewire_comm *fc; 235103285Sikob struct fw_xferq *xferq; 236103285Sikob struct ifnet *ifp = &fwe->fwe_if; 237111942Ssimokawa struct fw_xfer *xfer, *next; 238111942Ssimokawa int i; 239103285Sikob 240103285Sikob fc = fwe->fd.fc; 241103285Sikob 242103285Sikob FWE_POLL_DEREGISTER(fwe, ifp); 243103285Sikob 244103285Sikob if (fwe->dma_ch >= 0) { 245103285Sikob xferq = fc->ir[fwe->dma_ch]; 246103285Sikob 247103285Sikob if (xferq->flag & FWXFERQ_RUNNING) 248103285Sikob fc->irx_disable(fc, fwe->dma_ch); 249103285Sikob xferq->flag &= 250113584Ssimokawa ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 251113584Ssimokawa FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 252111942Ssimokawa xferq->hand = NULL; 253111942Ssimokawa 254111942Ssimokawa for (i = 0; i < xferq->bnchunk; i ++) 255111942Ssimokawa m_freem(xferq->bulkxfer[i].mbuf); 256111942Ssimokawa free(xferq->bulkxfer, M_FWE); 257111942Ssimokawa 258111942Ssimokawa for (xfer = STAILQ_FIRST(&fwe->xferlist); xfer != NULL; 259111942Ssimokawa xfer = next) { 260111942Ssimokawa next = STAILQ_NEXT(xfer, link); 261111942Ssimokawa fw_xfer_free(xfer); 262111942Ssimokawa } 263111942Ssimokawa STAILQ_INIT(&fwe->xferlist); 264111942Ssimokawa 265111942Ssimokawa xferq->bulkxfer = NULL; 266103285Sikob fwe->dma_ch = -1; 267103285Sikob } 268103285Sikob 269103285Sikob ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 270103285Sikob} 271103285Sikob 272103285Sikobstatic int 273103285Sikobfwe_detach(device_t dev) 274103285Sikob{ 275103285Sikob struct fwe_softc *fwe; 276103285Sikob int s; 277103285Sikob 278103285Sikob fwe = (struct fwe_softc *)device_get_softc(dev); 279103285Sikob s = splimp(); 280103285Sikob 281103285Sikob fwe_stop(fwe); 282108712Ssimokawa#if __FreeBSD_version >= 500000 283106937Ssam ether_ifdetach(&fwe->fwe_if); 284108712Ssimokawa#else 285108712Ssimokawa ether_ifdetach(&fwe->fwe_if, 1); 286108712Ssimokawa#endif 287103285Sikob 288103285Sikob splx(s); 289103285Sikob return 0; 290103285Sikob} 291103285Sikob 292103285Sikobstatic void 293103285Sikobfwe_init(void *arg) 294103285Sikob{ 295103285Sikob struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe; 296103285Sikob struct firewire_comm *fc; 297103285Sikob struct ifnet *ifp = &fwe->fwe_if; 298103285Sikob struct fw_xferq *xferq; 299111942Ssimokawa struct fw_xfer *xfer; 300113584Ssimokawa struct mbuf *m; 301103285Sikob int i; 302103285Sikob 303122161Ssimokawa FWEDEBUG(ifp, "initializing\n"); 304103285Sikob 305103285Sikob /* XXX keep promiscoud mode */ 306103285Sikob ifp->if_flags |= IFF_PROMISC; 307103285Sikob 308103285Sikob fc = fwe->fd.fc; 309103285Sikob#define START 0 310103285Sikob if (fwe->dma_ch < 0) { 311103285Sikob for (i = START; i < fc->nisodma; i ++) { 312103285Sikob xferq = fc->ir[i]; 313103285Sikob if ((xferq->flag & FWXFERQ_OPEN) == 0) 314118312Ssimokawa goto found; 315103285Sikob } 316118312Ssimokawa printf("no free dma channel\n"); 317118312Ssimokawa return; 318118312Ssimokawafound: 319103285Sikob fwe->dma_ch = i; 320103285Sikob fwe->stream_ch = stream_ch; 321103285Sikob fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 322103285Sikob /* allocate DMA channel and init packet mode */ 323113584Ssimokawa xferq->flag |= FWXFERQ_OPEN | FWXFERQ_EXTBUF | 324113584Ssimokawa FWXFERQ_HANDLER | FWXFERQ_STREAM; 325112400Ssimokawa xferq->flag &= ~0xff; 326103285Sikob xferq->flag |= fwe->stream_ch & 0xff; 327103285Sikob /* register fwe_input handler */ 328103285Sikob xferq->sc = (caddr_t) fwe; 329103285Sikob xferq->hand = fwe_as_input; 330122603Ssimokawa xferq->bnchunk = rx_queue_len; 331111942Ssimokawa xferq->bnpacket = 1; 332111942Ssimokawa xferq->psize = MCLBYTES; 333111942Ssimokawa xferq->queued = 0; 334113584Ssimokawa xferq->buf = NULL; 335111942Ssimokawa xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 336113584Ssimokawa sizeof(struct fw_bulkxfer) * xferq->bnchunk, 337113584Ssimokawa M_FWE, M_WAITOK); 338111942Ssimokawa if (xferq->bulkxfer == NULL) { 339111942Ssimokawa printf("if_fwe: malloc failed\n"); 340111942Ssimokawa return; 341111942Ssimokawa } 342111942Ssimokawa STAILQ_INIT(&xferq->stvalid); 343111942Ssimokawa STAILQ_INIT(&xferq->stfree); 344111942Ssimokawa STAILQ_INIT(&xferq->stdma); 345111942Ssimokawa xferq->stproc = NULL; 346111942Ssimokawa for (i = 0; i < xferq->bnchunk; i ++) { 347113584Ssimokawa m = 348111942Ssimokawa#if __FreeBSD_version >= 500000 349111942Ssimokawa m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 350111942Ssimokawa#else 351111942Ssimokawa m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 352111942Ssimokawa#endif 353113584Ssimokawa xferq->bulkxfer[i].mbuf = m; 354113584Ssimokawa if (m != NULL) { 355113584Ssimokawa m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 356113584Ssimokawa STAILQ_INSERT_TAIL(&xferq->stfree, 357113584Ssimokawa &xferq->bulkxfer[i], link); 358113584Ssimokawa } else 359113584Ssimokawa printf("fwe_as_input: m_getcl failed\n"); 360111942Ssimokawa } 361111942Ssimokawa STAILQ_INIT(&fwe->xferlist); 362111942Ssimokawa for (i = 0; i < TX_MAX_QUEUE; i++) { 363111942Ssimokawa xfer = fw_xfer_alloc(M_FWE); 364111942Ssimokawa if (xfer == NULL) 365111942Ssimokawa break; 366120660Ssimokawa xfer->send.spd = tx_speed; 367111942Ssimokawa xfer->fc = fwe->fd.fc; 368111942Ssimokawa xfer->retry_req = fw_asybusy; 369111942Ssimokawa xfer->sc = (caddr_t)fwe; 370111942Ssimokawa xfer->act.hand = fwe_output_callback; 371111942Ssimokawa STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 372111942Ssimokawa } 373103285Sikob } else 374103285Sikob xferq = fc->ir[fwe->dma_ch]; 375103285Sikob 376103285Sikob 377103285Sikob /* start dma */ 378103285Sikob if ((xferq->flag & FWXFERQ_RUNNING) == 0) 379103285Sikob fc->irx_enable(fc, fwe->dma_ch); 380103285Sikob 381103285Sikob ifp->if_flags |= IFF_RUNNING; 382103285Sikob ifp->if_flags &= ~IFF_OACTIVE; 383103285Sikob 384103285Sikob FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 385103285Sikob#if 0 386103285Sikob /* attempt to start output */ 387103285Sikob fwe_start(ifp); 388103285Sikob#endif 389103285Sikob} 390103285Sikob 391103285Sikob 392103285Sikobstatic int 393103285Sikobfwe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 394103285Sikob{ 395103285Sikob struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 396103285Sikob struct ifstat *ifs = NULL; 397103285Sikob int s, error, len; 398103285Sikob 399103285Sikob switch (cmd) { 400103285Sikob case SIOCSIFFLAGS: 401103285Sikob s = splimp(); 402103285Sikob if (ifp->if_flags & IFF_UP) { 403103285Sikob if (!(ifp->if_flags & IFF_RUNNING)) 404103285Sikob fwe_init(&fwe->eth_softc); 405103285Sikob } else { 406103285Sikob if (ifp->if_flags & IFF_RUNNING) 407103285Sikob fwe_stop(fwe); 408103285Sikob } 409103285Sikob /* XXX keep promiscoud mode */ 410103285Sikob ifp->if_flags |= IFF_PROMISC; 411103285Sikob splx(s); 412103285Sikob break; 413103285Sikob case SIOCADDMULTI: 414103285Sikob case SIOCDELMULTI: 415108712Ssimokawa break; 416103285Sikob 417103285Sikob case SIOCGIFSTATUS: 418103285Sikob s = splimp(); 419103285Sikob ifs = (struct ifstat *)data; 420103285Sikob len = strlen(ifs->ascii); 421103285Sikob if (len < sizeof(ifs->ascii)) 422103285Sikob snprintf(ifs->ascii + len, 423103285Sikob sizeof(ifs->ascii) - len, 424103285Sikob "\tch %d dma %d\n", 425103285Sikob fwe->stream_ch, fwe->dma_ch); 426103285Sikob splx(s); 427108712Ssimokawa break; 428108712Ssimokawa#if __FreeBSD_version >= 500000 429103285Sikob default: 430108712Ssimokawa#else 431108712Ssimokawa case SIOCSIFADDR: 432108712Ssimokawa case SIOCGIFADDR: 433108712Ssimokawa case SIOCSIFMTU: 434108712Ssimokawa#endif 435106937Ssam s = splimp(); 436106937Ssam error = ether_ioctl(ifp, cmd, data); 437106937Ssam splx(s); 438106937Ssam return (error); 439108712Ssimokawa#if __FreeBSD_version < 500000 440108712Ssimokawa default: 441108712Ssimokawa return (EINVAL); 442108712Ssimokawa#endif 443103285Sikob } 444103285Sikob 445103285Sikob return (0); 446103285Sikob} 447103285Sikob 448103285Sikobstatic void 449111942Ssimokawafwe_output_callback(struct fw_xfer *xfer) 450111942Ssimokawa{ 451111942Ssimokawa struct fwe_softc *fwe; 452111942Ssimokawa struct ifnet *ifp; 453111942Ssimokawa int s; 454111942Ssimokawa 455111942Ssimokawa fwe = (struct fwe_softc *)xfer->sc; 456111942Ssimokawa ifp = &fwe->fwe_if; 457111942Ssimokawa /* XXX error check */ 458122161Ssimokawa FWEDEBUG(ifp, "resp = %d\n", xfer->resp); 459111942Ssimokawa if (xfer->resp != 0) 460111942Ssimokawa ifp->if_oerrors ++; 461111942Ssimokawa 462111942Ssimokawa m_freem(xfer->mbuf); 463111942Ssimokawa fw_xfer_unload(xfer); 464113584Ssimokawa 465111942Ssimokawa s = splimp(); 466111942Ssimokawa STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 467111942Ssimokawa splx(s); 468113584Ssimokawa 469113584Ssimokawa /* for queue full */ 470111942Ssimokawa if (ifp->if_snd.ifq_head != NULL) 471111942Ssimokawa fwe_start(ifp); 472111942Ssimokawa} 473111942Ssimokawa 474111942Ssimokawastatic void 475103285Sikobfwe_start(struct ifnet *ifp) 476103285Sikob{ 477103285Sikob struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 478103285Sikob int s; 479103285Sikob 480122161Ssimokawa FWEDEBUG(ifp, "starting\n"); 481103285Sikob 482103285Sikob if (fwe->dma_ch < 0) { 483103285Sikob struct mbuf *m = NULL; 484103285Sikob 485122161Ssimokawa FWEDEBUG(ifp, "not ready\n"); 486103285Sikob 487103285Sikob s = splimp(); 488103285Sikob do { 489103285Sikob IF_DEQUEUE(&ifp->if_snd, m); 490103285Sikob if (m != NULL) 491103285Sikob m_freem(m); 492103285Sikob ifp->if_oerrors ++; 493103285Sikob } while (m != NULL); 494103285Sikob splx(s); 495103285Sikob 496103285Sikob return; 497103285Sikob } 498103285Sikob 499103285Sikob s = splimp(); 500103285Sikob ifp->if_flags |= IFF_OACTIVE; 501103285Sikob 502103285Sikob if (ifp->if_snd.ifq_len != 0) 503103285Sikob fwe_as_output(fwe, ifp); 504103285Sikob 505103285Sikob ifp->if_flags &= ~IFF_OACTIVE; 506103285Sikob splx(s); 507103285Sikob} 508103285Sikob 509111942Ssimokawa#define HDR_LEN 4 510111942Ssimokawa#ifndef ETHER_ALIGN 511111942Ssimokawa#define ETHER_ALIGN 2 512103285Sikob#endif 513103285Sikob/* Async. stream output */ 514103285Sikobstatic void 515103285Sikobfwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp) 516103285Sikob{ 517103285Sikob struct mbuf *m; 518103285Sikob struct fw_xfer *xfer; 519103285Sikob struct fw_xferq *xferq; 520103285Sikob struct fw_pkt *fp; 521103285Sikob int i = 0; 522103285Sikob 523103285Sikob xfer = NULL; 524103285Sikob xferq = fwe->fd.fc->atq; 525111942Ssimokawa while (xferq->queued < xferq->maxq - 1) { 526111942Ssimokawa xfer = STAILQ_FIRST(&fwe->xferlist); 527111942Ssimokawa if (xfer == NULL) { 528111942Ssimokawa printf("if_fwe: lack of xfer\n"); 529111942Ssimokawa return; 530111942Ssimokawa } 531103285Sikob IF_DEQUEUE(&ifp->if_snd, m); 532103285Sikob if (m == NULL) 533103285Sikob break; 534111942Ssimokawa STAILQ_REMOVE_HEAD(&fwe->xferlist, link); 535108712Ssimokawa#if __FreeBSD_version >= 500000 536106937Ssam BPF_MTAP(ifp, m); 537108712Ssimokawa#else 538108712Ssimokawa if (ifp->if_bpf != NULL) 539108712Ssimokawa bpf_mtap(ifp, m); 540108712Ssimokawa#endif 541103285Sikob 542103285Sikob /* keep ip packet alignment for alpha */ 543111942Ssimokawa M_PREPEND(m, ETHER_ALIGN, M_DONTWAIT); 544120660Ssimokawa fp = &xfer->send.hdr; 545120660Ssimokawa *(u_int32_t *)&xfer->send.hdr = *(int32_t *)&fwe->pkt_hdr; 546113584Ssimokawa fp->mode.stream.len = m->m_pkthdr.len; 547103285Sikob xfer->mbuf = m; 548120660Ssimokawa xfer->send.pay_len = m->m_pkthdr.len; 549103285Sikob 550111942Ssimokawa if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) { 551103285Sikob /* error */ 552103285Sikob ifp->if_oerrors ++; 553103285Sikob /* XXX set error code */ 554103285Sikob fwe_output_callback(xfer); 555103285Sikob } else { 556103285Sikob ifp->if_opackets ++; 557111942Ssimokawa i++; 558103285Sikob } 559103285Sikob } 560103285Sikob#if 0 561103285Sikob if (i > 1) 562103285Sikob printf("%d queued\n", i); 563103285Sikob#endif 564111942Ssimokawa if (i > 0) 565111942Ssimokawa xferq->start(fwe->fd.fc); 566103285Sikob} 567103285Sikob 568103285Sikob/* Async. stream output */ 569103285Sikobstatic void 570103285Sikobfwe_as_input(struct fw_xferq *xferq) 571103285Sikob{ 572113584Ssimokawa struct mbuf *m, *m0; 573103285Sikob struct ifnet *ifp; 574103285Sikob struct fwe_softc *fwe; 575111942Ssimokawa struct fw_bulkxfer *sxfer; 576111942Ssimokawa struct fw_pkt *fp; 577103285Sikob u_char *c; 578111942Ssimokawa#if __FreeBSD_version < 500000 579111942Ssimokawa struct ether_header *eh; 580111942Ssimokawa#endif 581103285Sikob 582103285Sikob fwe = (struct fwe_softc *)xferq->sc; 583103285Sikob ifp = &fwe->fwe_if; 584103285Sikob#if 0 585103285Sikob FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 586103285Sikob#endif 587111942Ssimokawa while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 588111942Ssimokawa STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 589113584Ssimokawa fp = mtod(sxfer->mbuf, struct fw_pkt *); 590111942Ssimokawa if (fwe->fd.fc->irx_post != NULL) 591111942Ssimokawa fwe->fd.fc->irx_post(fwe->fd.fc, fp->mode.ld); 592111942Ssimokawa m = sxfer->mbuf; 593111942Ssimokawa 594119119Ssimokawa /* insert new rbuf */ 595113584Ssimokawa sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 596113584Ssimokawa if (m0 != NULL) { 597113584Ssimokawa m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 598113584Ssimokawa STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 599113584Ssimokawa } else 600113584Ssimokawa printf("fwe_as_input: m_getcl failed\n"); 601111942Ssimokawa 602119119Ssimokawa if (sxfer->resp != 0 || fp->mode.stream.len < 603119119Ssimokawa ETHER_ALIGN + sizeof(struct ether_header)) { 604119119Ssimokawa m_freem(m); 605119119Ssimokawa ifp->if_ierrors ++; 606119119Ssimokawa continue; 607119119Ssimokawa } 608119119Ssimokawa 609111942Ssimokawa m->m_data += HDR_LEN + ETHER_ALIGN; 610111942Ssimokawa c = mtod(m, char *); 611111942Ssimokawa#if __FreeBSD_version < 500000 612111942Ssimokawa eh = (struct ether_header *)c; 613111942Ssimokawa m->m_data += sizeof(struct ether_header); 614108712Ssimokawa#endif 615111942Ssimokawa m->m_len = m->m_pkthdr.len = 616113584Ssimokawa fp->mode.stream.len - ETHER_ALIGN; 617103285Sikob m->m_pkthdr.rcvif = ifp; 618103285Sikob#if 0 619122161Ssimokawa FWEDEBUG(ifp, "%02x %02x %02x %02x %02x %02x\n" 620103285Sikob "%02x %02x %02x %02x %02x %02x\n" 621103285Sikob "%02x %02x %02x %02x\n" 622103285Sikob "%02x %02x %02x %02x\n" 623103285Sikob "%02x %02x %02x %02x\n" 624103285Sikob "%02x %02x %02x %02x\n", 625103285Sikob c[0], c[1], c[2], c[3], c[4], c[5], 626103285Sikob c[6], c[7], c[8], c[9], c[10], c[11], 627103285Sikob c[12], c[13], c[14], c[15], 628103285Sikob c[16], c[17], c[18], c[19], 629103285Sikob c[20], c[21], c[22], c[23], 630103285Sikob c[20], c[21], c[22], c[23] 631103285Sikob ); 632103285Sikob#endif 633108712Ssimokawa#if __FreeBSD_version >= 500000 634106937Ssam (*ifp->if_input)(ifp, m); 635108712Ssimokawa#else 636108712Ssimokawa ether_input(ifp, eh, m); 637108712Ssimokawa#endif 638103285Sikob ifp->if_ipackets ++; 639103285Sikob } 640111942Ssimokawa if (STAILQ_FIRST(&xferq->stfree) != NULL) 641111942Ssimokawa fwe->fd.fc->irx_enable(fwe->fd.fc, fwe->dma_ch); 642103285Sikob} 643103285Sikob 644103285Sikob 645103285Sikobstatic devclass_t fwe_devclass; 646103285Sikob 647103285Sikobstatic device_method_t fwe_methods[] = { 648103285Sikob /* device interface */ 649103285Sikob DEVMETHOD(device_identify, fwe_identify), 650103285Sikob DEVMETHOD(device_probe, fwe_probe), 651103285Sikob DEVMETHOD(device_attach, fwe_attach), 652103285Sikob DEVMETHOD(device_detach, fwe_detach), 653103285Sikob { 0, 0 } 654103285Sikob}; 655103285Sikob 656103285Sikobstatic driver_t fwe_driver = { 657121953Ssimokawa "fwe", 658103285Sikob fwe_methods, 659103285Sikob sizeof(struct fwe_softc), 660103285Sikob}; 661103285Sikob 662103285Sikob 663113506SmdoddDRIVER_MODULE(fwe, firewire, fwe_driver, fwe_devclass, 0, 0); 664113506SmdoddMODULE_VERSION(fwe, 1); 665113506SmdoddMODULE_DEPEND(fwe, firewire, 1, 1, 1); 666