if_fwe.c revision 113584
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 113584 2003-04-17 03:38:03Z simokawa $ 35103285Sikob */ 36103285Sikob 37103285Sikob#include "opt_inet.h" 38103285Sikob 39103285Sikob#include <sys/param.h> 40103285Sikob#include <sys/conf.h> 41103285Sikob#include <sys/kernel.h> 42103285Sikob#include <sys/malloc.h> 43103285Sikob#include <sys/mbuf.h> 44103285Sikob#include <sys/socket.h> 45103285Sikob#include <sys/sockio.h> 46103285Sikob#include <sys/sysctl.h> 47103285Sikob#include <sys/systm.h> 48103285Sikob#include <sys/module.h> 49103285Sikob#include <sys/bus.h> 50113584Ssimokawa#include <machine/bus.h> 51103285Sikob 52103285Sikob#include <net/bpf.h> 53103285Sikob#include <net/ethernet.h> 54103285Sikob#include <net/if.h> 55103285Sikob#include <net/if_arp.h> 56103285Sikob#include <net/if_vlan_var.h> 57103285Sikob#include <net/route.h> 58103285Sikob 59103285Sikob#include <netinet/in.h> 60103285Sikob 61103285Sikob#include <dev/firewire/firewire.h> 62103285Sikob#include <dev/firewire/firewirereg.h> 63103285Sikob#include <dev/firewire/if_fwevar.h> 64103285Sikob 65103285Sikob#define FWEDEBUG if (fwedebug) printf 66111942Ssimokawa#define TX_MAX_QUEUE (FWMAXQUEUE - 1) 67111942Ssimokawa#define RX_MAX_QUEUE FWMAXQUEUE 68103285Sikob 69103285Sikob/* network interface */ 70103285Sikobstatic void fwe_start __P((struct ifnet *)); 71103285Sikobstatic int fwe_ioctl __P((struct ifnet *, u_long, caddr_t)); 72103285Sikobstatic void fwe_init __P((void *)); 73103285Sikob 74111942Ssimokawastatic void fwe_output_callback __P((struct fw_xfer *)); 75103285Sikobstatic void fwe_as_output __P((struct fwe_softc *, struct ifnet *)); 76103285Sikobstatic void fwe_as_input __P((struct fw_xferq *)); 77103285Sikob 78103285Sikobstatic int fwedebug = 0; 79103285Sikobstatic int stream_ch = 1; 80103285Sikob 81108281SsimokawaMALLOC_DEFINE(M_FWE, "if_fwe", "Ethernet over FireWire interface"); 82103285SikobSYSCTL_INT(_debug, OID_AUTO, if_fwe_debug, CTLFLAG_RW, &fwedebug, 0, ""); 83103285SikobSYSCTL_DECL(_hw_firewire); 84103285SikobSYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD, 0, 85103285Sikob "Ethernet Emulation Subsystem"); 86103285SikobSYSCTL_INT(_hw_firewire_fwe, OID_AUTO, stream_ch, CTLFLAG_RW, &stream_ch, 0, 87103285Sikob "Stream channel to use"); 88103285Sikob 89103285Sikob#ifdef DEVICE_POLLING 90103285Sikob#define FWE_POLL_REGISTER(func, fwe, ifp) \ 91103285Sikob if (ether_poll_register(func, ifp)) { \ 92103285Sikob struct firewire_comm *fc = (fwe)->fd.fc; \ 93103285Sikob fc->set_intr(fc, 0); \ 94103285Sikob } 95103285Sikob 96103285Sikob#define FWE_POLL_DEREGISTER(fwe, ifp) \ 97103285Sikob do { \ 98103285Sikob struct firewire_comm *fc = (fwe)->fd.fc; \ 99103285Sikob ether_poll_deregister(ifp); \ 100103285Sikob fc->set_intr(fc, 1); \ 101103285Sikob } while(0) \ 102103285Sikob 103103285Sikobstatic poll_handler_t fwe_poll; 104103285Sikob 105103285Sikobstatic void 106103285Sikobfwe_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 107103285Sikob{ 108103285Sikob struct fwe_softc *fwe; 109103285Sikob struct firewire_comm *fc; 110103285Sikob 111103285Sikob fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 112103285Sikob fc = fwe->fd.fc; 113103285Sikob if (cmd == POLL_DEREGISTER) { 114103285Sikob /* enable interrupts */ 115103285Sikob fc->set_intr(fc, 1); 116103285Sikob return; 117103285Sikob } 118103285Sikob fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count); 119103285Sikob} 120103285Sikob#else 121103285Sikob#define FWE_POLL_REGISTER(func, fwe, ifp) 122103285Sikob#define FWE_POLL_DEREGISTER(fwe, ifp) 123103285Sikob#endif 124103285Sikobstatic void 125103285Sikobfwe_identify(driver_t *driver, device_t parent) 126103285Sikob{ 127103285Sikob BUS_ADD_CHILD(parent, 0, "if_fwe", device_get_unit(parent)); 128103285Sikob} 129103285Sikob 130103285Sikobstatic int 131103285Sikobfwe_probe(device_t dev) 132103285Sikob{ 133103285Sikob device_t pa; 134103285Sikob 135103285Sikob pa = device_get_parent(dev); 136103285Sikob if(device_get_unit(dev) != device_get_unit(pa)){ 137103285Sikob return(ENXIO); 138103285Sikob } 139103285Sikob 140108281Ssimokawa device_set_desc(dev, "Ethernet over FireWire"); 141103285Sikob return (0); 142103285Sikob} 143103285Sikob 144103285Sikobstatic int 145103285Sikobfwe_attach(device_t dev) 146103285Sikob{ 147103285Sikob struct fwe_softc *fwe; 148103285Sikob struct ifnet *ifp; 149103285Sikob int unit, s; 150103285Sikob u_char *eaddr; 151109814Ssimokawa struct fw_eui64 *eui; 152103285Sikob 153103285Sikob fwe = ((struct fwe_softc *)device_get_softc(dev)); 154103285Sikob unit = device_get_unit(dev); 155103285Sikob 156103285Sikob bzero(fwe, sizeof(struct fwe_softc)); 157103285Sikob /* XXX */ 158103285Sikob fwe->stream_ch = stream_ch; 159103285Sikob fwe->dma_ch = -1; 160103285Sikob 161103285Sikob fwe->fd.fc = device_get_ivars(dev); 162103285Sikob fwe->fd.dev = dev; 163103285Sikob fwe->fd.post_explore = NULL; 164103285Sikob fwe->eth_softc.fwe = fwe; 165103285Sikob 166103285Sikob fwe->pkt_hdr.mode.stream.tcode = FWTCODE_STREAM; 167103285Sikob fwe->pkt_hdr.mode.stream.sy = 0; 168103285Sikob fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 169103285Sikob 170103285Sikob /* generate fake MAC address: first and last 3bytes from eui64 */ 171103285Sikob#define LOCAL (0x02) 172103285Sikob#define GROUP (0x01) 173103285Sikob eaddr = &fwe->eth_softc.arpcom.ac_enaddr[0]; 174109814Ssimokawa 175109814Ssimokawa eui = &fwe->fd.fc->eui; 176109814Ssimokawa eaddr[0] = (FW_EUI64_BYTE(eui, 0) | LOCAL) & ~GROUP; 177109814Ssimokawa eaddr[1] = FW_EUI64_BYTE(eui, 1); 178109814Ssimokawa eaddr[2] = FW_EUI64_BYTE(eui, 2); 179109814Ssimokawa eaddr[3] = FW_EUI64_BYTE(eui, 5); 180109814Ssimokawa eaddr[4] = FW_EUI64_BYTE(eui, 6); 181109814Ssimokawa eaddr[5] = FW_EUI64_BYTE(eui, 7); 182107653Ssimokawa printf("if_fwe%d: Fake Ethernet address: " 183107653Ssimokawa "%02x:%02x:%02x:%02x:%02x:%02x\n", unit, 184103285Sikob eaddr[0], eaddr[1], eaddr[2], eaddr[3], eaddr[4], eaddr[5]); 185103285Sikob 186103285Sikob /* fill the rest and attach interface */ 187103285Sikob ifp = &fwe->fwe_if; 188103285Sikob ifp->if_softc = &fwe->eth_softc; 189103285Sikob 190103285Sikob ifp->if_unit = unit; 191103285Sikob ifp->if_name = "fwe"; 192103285Sikob ifp->if_init = fwe_init; 193103285Sikob ifp->if_output = ether_output; 194103285Sikob ifp->if_start = fwe_start; 195103285Sikob ifp->if_ioctl = fwe_ioctl; 196103285Sikob ifp->if_mtu = ETHERMTU; 197103285Sikob ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST); 198111942Ssimokawa ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE; 199103285Sikob 200103285Sikob s = splimp(); 201108712Ssimokawa#if __FreeBSD_version >= 500000 202106937Ssam ether_ifattach(ifp, eaddr); 203108712Ssimokawa#else 204108712Ssimokawa ether_ifattach(ifp, 1); 205108712Ssimokawa#endif 206103285Sikob splx(s); 207103285Sikob 208103285Sikob /* Tell the upper layer(s) we support long frames. */ 209103285Sikob ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 210108712Ssimokawa#if __FreeBSD_version >= 500000 211106937Ssam ifp->if_capabilities |= IFCAP_VLAN_MTU; 212108712Ssimokawa#endif 213103285Sikob 214103285Sikob 215103285Sikob FWEDEBUG("interface %s%d created.\n", ifp->if_name, ifp->if_unit); 216103285Sikob return 0; 217103285Sikob} 218103285Sikob 219103285Sikobstatic void 220103285Sikobfwe_stop(struct fwe_softc *fwe) 221103285Sikob{ 222103285Sikob struct firewire_comm *fc; 223103285Sikob struct fw_xferq *xferq; 224103285Sikob struct ifnet *ifp = &fwe->fwe_if; 225111942Ssimokawa struct fw_xfer *xfer, *next; 226111942Ssimokawa int i; 227103285Sikob 228103285Sikob fc = fwe->fd.fc; 229103285Sikob 230103285Sikob FWE_POLL_DEREGISTER(fwe, ifp); 231103285Sikob 232103285Sikob if (fwe->dma_ch >= 0) { 233103285Sikob xferq = fc->ir[fwe->dma_ch]; 234103285Sikob 235103285Sikob if (xferq->flag & FWXFERQ_RUNNING) 236103285Sikob fc->irx_disable(fc, fwe->dma_ch); 237103285Sikob xferq->flag &= 238113584Ssimokawa ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 239113584Ssimokawa FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 240111942Ssimokawa xferq->hand = NULL; 241111942Ssimokawa 242111942Ssimokawa for (i = 0; i < xferq->bnchunk; i ++) 243111942Ssimokawa m_freem(xferq->bulkxfer[i].mbuf); 244111942Ssimokawa free(xferq->bulkxfer, M_FWE); 245111942Ssimokawa 246111942Ssimokawa for (xfer = STAILQ_FIRST(&fwe->xferlist); xfer != NULL; 247111942Ssimokawa xfer = next) { 248111942Ssimokawa next = STAILQ_NEXT(xfer, link); 249111942Ssimokawa fw_xfer_free(xfer); 250111942Ssimokawa } 251111942Ssimokawa STAILQ_INIT(&fwe->xferlist); 252111942Ssimokawa 253111942Ssimokawa xferq->bulkxfer = NULL; 254103285Sikob fwe->dma_ch = -1; 255103285Sikob } 256103285Sikob 257103285Sikob ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 258103285Sikob} 259103285Sikob 260103285Sikobstatic int 261103285Sikobfwe_detach(device_t dev) 262103285Sikob{ 263103285Sikob struct fwe_softc *fwe; 264103285Sikob int s; 265103285Sikob 266103285Sikob fwe = (struct fwe_softc *)device_get_softc(dev); 267103285Sikob s = splimp(); 268103285Sikob 269103285Sikob fwe_stop(fwe); 270108712Ssimokawa#if __FreeBSD_version >= 500000 271106937Ssam ether_ifdetach(&fwe->fwe_if); 272108712Ssimokawa#else 273108712Ssimokawa ether_ifdetach(&fwe->fwe_if, 1); 274108712Ssimokawa#endif 275103285Sikob 276103285Sikob splx(s); 277103285Sikob return 0; 278103285Sikob} 279103285Sikob 280103285Sikobstatic void 281103285Sikobfwe_init(void *arg) 282103285Sikob{ 283103285Sikob struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe; 284103285Sikob struct firewire_comm *fc; 285103285Sikob struct ifnet *ifp = &fwe->fwe_if; 286103285Sikob struct fw_xferq *xferq; 287111942Ssimokawa struct fw_xfer *xfer; 288113584Ssimokawa struct mbuf *m; 289103285Sikob int i; 290103285Sikob 291103285Sikob FWEDEBUG("initializing %s%d\n", ifp->if_name, ifp->if_unit); 292103285Sikob 293103285Sikob /* XXX keep promiscoud mode */ 294103285Sikob ifp->if_flags |= IFF_PROMISC; 295103285Sikob 296103285Sikob fc = fwe->fd.fc; 297103285Sikob#define START 0 298103285Sikob if (fwe->dma_ch < 0) { 299103285Sikob xferq = NULL; 300103285Sikob for (i = START; i < fc->nisodma; i ++) { 301103285Sikob xferq = fc->ir[i]; 302103285Sikob if ((xferq->flag & FWXFERQ_OPEN) == 0) 303103285Sikob break; 304103285Sikob } 305103285Sikob 306103285Sikob if (xferq == NULL) { 307103285Sikob printf("no free dma channel\n"); 308103285Sikob return; 309103285Sikob } 310103285Sikob fwe->dma_ch = i; 311103285Sikob fwe->stream_ch = stream_ch; 312103285Sikob fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 313103285Sikob /* allocate DMA channel and init packet mode */ 314113584Ssimokawa xferq->flag |= FWXFERQ_OPEN | FWXFERQ_EXTBUF | 315113584Ssimokawa FWXFERQ_HANDLER | FWXFERQ_STREAM; 316112400Ssimokawa xferq->flag &= ~0xff; 317103285Sikob xferq->flag |= fwe->stream_ch & 0xff; 318103285Sikob /* register fwe_input handler */ 319103285Sikob xferq->sc = (caddr_t) fwe; 320103285Sikob xferq->hand = fwe_as_input; 321111942Ssimokawa xferq->bnchunk = RX_MAX_QUEUE; 322111942Ssimokawa xferq->bnpacket = 1; 323111942Ssimokawa xferq->psize = MCLBYTES; 324111942Ssimokawa xferq->queued = 0; 325113584Ssimokawa xferq->buf = NULL; 326111942Ssimokawa xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 327113584Ssimokawa sizeof(struct fw_bulkxfer) * xferq->bnchunk, 328113584Ssimokawa M_FWE, M_WAITOK); 329111942Ssimokawa if (xferq->bulkxfer == NULL) { 330111942Ssimokawa printf("if_fwe: malloc failed\n"); 331111942Ssimokawa return; 332111942Ssimokawa } 333111942Ssimokawa STAILQ_INIT(&xferq->stvalid); 334111942Ssimokawa STAILQ_INIT(&xferq->stfree); 335111942Ssimokawa STAILQ_INIT(&xferq->stdma); 336111942Ssimokawa xferq->stproc = NULL; 337111942Ssimokawa for (i = 0; i < xferq->bnchunk; i ++) { 338113584Ssimokawa m = 339111942Ssimokawa#if __FreeBSD_version >= 500000 340111942Ssimokawa m_getcl(M_TRYWAIT, MT_DATA, M_PKTHDR); 341111942Ssimokawa#else 342111942Ssimokawa m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 343111942Ssimokawa#endif 344113584Ssimokawa xferq->bulkxfer[i].mbuf = m; 345113584Ssimokawa if (m != NULL) { 346113584Ssimokawa m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 347113584Ssimokawa STAILQ_INSERT_TAIL(&xferq->stfree, 348113584Ssimokawa &xferq->bulkxfer[i], link); 349113584Ssimokawa } else 350113584Ssimokawa printf("fwe_as_input: m_getcl failed\n"); 351111942Ssimokawa } 352111942Ssimokawa STAILQ_INIT(&fwe->xferlist); 353111942Ssimokawa for (i = 0; i < TX_MAX_QUEUE; i++) { 354111942Ssimokawa xfer = fw_xfer_alloc(M_FWE); 355111942Ssimokawa if (xfer == NULL) 356111942Ssimokawa break; 357111942Ssimokawa xfer->spd = 2; 358111942Ssimokawa xfer->fc = fwe->fd.fc; 359111942Ssimokawa xfer->retry_req = fw_asybusy; 360111942Ssimokawa xfer->sc = (caddr_t)fwe; 361111942Ssimokawa xfer->act.hand = fwe_output_callback; 362111942Ssimokawa STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 363111942Ssimokawa } 364103285Sikob } else 365103285Sikob xferq = fc->ir[fwe->dma_ch]; 366103285Sikob 367103285Sikob 368103285Sikob /* start dma */ 369103285Sikob if ((xferq->flag & FWXFERQ_RUNNING) == 0) 370103285Sikob fc->irx_enable(fc, fwe->dma_ch); 371103285Sikob 372103285Sikob ifp->if_flags |= IFF_RUNNING; 373103285Sikob ifp->if_flags &= ~IFF_OACTIVE; 374103285Sikob 375103285Sikob FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 376103285Sikob#if 0 377103285Sikob /* attempt to start output */ 378103285Sikob fwe_start(ifp); 379103285Sikob#endif 380103285Sikob} 381103285Sikob 382103285Sikob 383103285Sikobstatic int 384103285Sikobfwe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 385103285Sikob{ 386103285Sikob struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 387103285Sikob struct ifstat *ifs = NULL; 388103285Sikob int s, error, len; 389103285Sikob 390103285Sikob switch (cmd) { 391103285Sikob case SIOCSIFFLAGS: 392103285Sikob s = splimp(); 393103285Sikob if (ifp->if_flags & IFF_UP) { 394103285Sikob if (!(ifp->if_flags & IFF_RUNNING)) 395103285Sikob fwe_init(&fwe->eth_softc); 396103285Sikob } else { 397103285Sikob if (ifp->if_flags & IFF_RUNNING) 398103285Sikob fwe_stop(fwe); 399103285Sikob } 400103285Sikob /* XXX keep promiscoud mode */ 401103285Sikob ifp->if_flags |= IFF_PROMISC; 402103285Sikob splx(s); 403103285Sikob break; 404103285Sikob case SIOCADDMULTI: 405103285Sikob case SIOCDELMULTI: 406108712Ssimokawa break; 407103285Sikob 408103285Sikob case SIOCGIFSTATUS: 409103285Sikob s = splimp(); 410103285Sikob ifs = (struct ifstat *)data; 411103285Sikob len = strlen(ifs->ascii); 412103285Sikob if (len < sizeof(ifs->ascii)) 413103285Sikob snprintf(ifs->ascii + len, 414103285Sikob sizeof(ifs->ascii) - len, 415103285Sikob "\tch %d dma %d\n", 416103285Sikob fwe->stream_ch, fwe->dma_ch); 417103285Sikob splx(s); 418108712Ssimokawa break; 419108712Ssimokawa#if __FreeBSD_version >= 500000 420103285Sikob default: 421108712Ssimokawa#else 422108712Ssimokawa case SIOCSIFADDR: 423108712Ssimokawa case SIOCGIFADDR: 424108712Ssimokawa case SIOCSIFMTU: 425108712Ssimokawa#endif 426106937Ssam s = splimp(); 427106937Ssam error = ether_ioctl(ifp, cmd, data); 428106937Ssam splx(s); 429106937Ssam return (error); 430108712Ssimokawa#if __FreeBSD_version < 500000 431108712Ssimokawa default: 432108712Ssimokawa return (EINVAL); 433108712Ssimokawa#endif 434103285Sikob } 435103285Sikob 436103285Sikob return (0); 437103285Sikob} 438103285Sikob 439103285Sikobstatic void 440111942Ssimokawafwe_output_callback(struct fw_xfer *xfer) 441111942Ssimokawa{ 442111942Ssimokawa struct fwe_softc *fwe; 443111942Ssimokawa struct ifnet *ifp; 444111942Ssimokawa int s; 445111942Ssimokawa 446111942Ssimokawa fwe = (struct fwe_softc *)xfer->sc; 447111942Ssimokawa ifp = &fwe->fwe_if; 448111942Ssimokawa /* XXX error check */ 449111942Ssimokawa FWEDEBUG("resp = %d\n", xfer->resp); 450111942Ssimokawa if (xfer->resp != 0) 451111942Ssimokawa ifp->if_oerrors ++; 452111942Ssimokawa 453111942Ssimokawa m_freem(xfer->mbuf); 454111942Ssimokawa xfer->send.buf = NULL; 455111942Ssimokawa fw_xfer_unload(xfer); 456113584Ssimokawa 457111942Ssimokawa s = splimp(); 458111942Ssimokawa STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 459111942Ssimokawa splx(s); 460113584Ssimokawa 461113584Ssimokawa /* for queue full */ 462111942Ssimokawa if (ifp->if_snd.ifq_head != NULL) 463111942Ssimokawa fwe_start(ifp); 464111942Ssimokawa} 465111942Ssimokawa 466111942Ssimokawastatic void 467103285Sikobfwe_start(struct ifnet *ifp) 468103285Sikob{ 469103285Sikob struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 470103285Sikob int s; 471103285Sikob 472103285Sikob FWEDEBUG("%s%d starting\n", ifp->if_name, ifp->if_unit); 473103285Sikob 474103285Sikob if (fwe->dma_ch < 0) { 475103285Sikob struct mbuf *m = NULL; 476103285Sikob 477103285Sikob FWEDEBUG("%s%d not ready.\n", ifp->if_name, ifp->if_unit); 478103285Sikob 479103285Sikob s = splimp(); 480103285Sikob do { 481103285Sikob IF_DEQUEUE(&ifp->if_snd, m); 482103285Sikob if (m != NULL) 483103285Sikob m_freem(m); 484103285Sikob ifp->if_oerrors ++; 485103285Sikob } while (m != NULL); 486103285Sikob splx(s); 487103285Sikob 488103285Sikob return; 489103285Sikob } 490103285Sikob 491103285Sikob s = splimp(); 492103285Sikob ifp->if_flags |= IFF_OACTIVE; 493103285Sikob 494103285Sikob if (ifp->if_snd.ifq_len != 0) 495103285Sikob fwe_as_output(fwe, ifp); 496103285Sikob 497103285Sikob ifp->if_flags &= ~IFF_OACTIVE; 498103285Sikob splx(s); 499103285Sikob} 500103285Sikob 501111942Ssimokawa#define HDR_LEN 4 502111942Ssimokawa#ifndef ETHER_ALIGN 503111942Ssimokawa#define ETHER_ALIGN 2 504103285Sikob#endif 505103285Sikob/* Async. stream output */ 506103285Sikobstatic void 507103285Sikobfwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp) 508103285Sikob{ 509103285Sikob struct mbuf *m; 510103285Sikob struct fw_xfer *xfer; 511103285Sikob struct fw_xferq *xferq; 512103285Sikob struct fw_pkt *fp; 513103285Sikob int i = 0; 514103285Sikob 515103285Sikob xfer = NULL; 516103285Sikob xferq = fwe->fd.fc->atq; 517111942Ssimokawa while (xferq->queued < xferq->maxq - 1) { 518111942Ssimokawa xfer = STAILQ_FIRST(&fwe->xferlist); 519111942Ssimokawa if (xfer == NULL) { 520111942Ssimokawa printf("if_fwe: lack of xfer\n"); 521111942Ssimokawa return; 522111942Ssimokawa } 523103285Sikob IF_DEQUEUE(&ifp->if_snd, m); 524103285Sikob if (m == NULL) 525103285Sikob break; 526111942Ssimokawa STAILQ_REMOVE_HEAD(&fwe->xferlist, link); 527108712Ssimokawa#if __FreeBSD_version >= 500000 528106937Ssam BPF_MTAP(ifp, m); 529108712Ssimokawa#else 530108712Ssimokawa if (ifp->if_bpf != NULL) 531108712Ssimokawa bpf_mtap(ifp, m); 532108712Ssimokawa#endif 533103285Sikob 534103285Sikob /* keep ip packet alignment for alpha */ 535111942Ssimokawa M_PREPEND(m, ETHER_ALIGN, M_DONTWAIT); 536103285Sikob fp = (struct fw_pkt *)&xfer->dst; /* XXX */ 537103285Sikob xfer->dst = *((int32_t *)&fwe->pkt_hdr); 538113584Ssimokawa fp->mode.stream.len = m->m_pkthdr.len; 539103285Sikob xfer->send.buf = (caddr_t) fp; 540103285Sikob xfer->mbuf = m; 541103285Sikob xfer->send.len = m->m_pkthdr.len + HDR_LEN; 542103285Sikob 543111942Ssimokawa if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) { 544103285Sikob /* error */ 545103285Sikob ifp->if_oerrors ++; 546103285Sikob /* XXX set error code */ 547103285Sikob fwe_output_callback(xfer); 548103285Sikob } else { 549103285Sikob ifp->if_opackets ++; 550111942Ssimokawa i++; 551103285Sikob } 552103285Sikob } 553103285Sikob#if 0 554103285Sikob if (i > 1) 555103285Sikob printf("%d queued\n", i); 556103285Sikob#endif 557111942Ssimokawa if (i > 0) 558111942Ssimokawa xferq->start(fwe->fd.fc); 559103285Sikob} 560103285Sikob 561103285Sikob/* Async. stream output */ 562103285Sikobstatic void 563103285Sikobfwe_as_input(struct fw_xferq *xferq) 564103285Sikob{ 565113584Ssimokawa struct mbuf *m, *m0; 566103285Sikob struct ifnet *ifp; 567103285Sikob struct fwe_softc *fwe; 568111942Ssimokawa struct fw_bulkxfer *sxfer; 569111942Ssimokawa struct fw_pkt *fp; 570103285Sikob u_char *c; 571111942Ssimokawa#if __FreeBSD_version < 500000 572111942Ssimokawa struct ether_header *eh; 573111942Ssimokawa#endif 574103285Sikob 575103285Sikob fwe = (struct fwe_softc *)xferq->sc; 576103285Sikob ifp = &fwe->fwe_if; 577103285Sikob#if 0 578103285Sikob FWE_POLL_REGISTER(fwe_poll, fwe, ifp); 579103285Sikob#endif 580111942Ssimokawa while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 581111942Ssimokawa STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 582111942Ssimokawa if (sxfer->resp != 0) 583111942Ssimokawa ifp->if_ierrors ++; 584113584Ssimokawa fp = mtod(sxfer->mbuf, struct fw_pkt *); 585111942Ssimokawa /* XXX */ 586111942Ssimokawa if (fwe->fd.fc->irx_post != NULL) 587111942Ssimokawa fwe->fd.fc->irx_post(fwe->fd.fc, fp->mode.ld); 588111942Ssimokawa m = sxfer->mbuf; 589111942Ssimokawa 590111942Ssimokawa /* insert rbuf */ 591113584Ssimokawa sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 592113584Ssimokawa if (m0 != NULL) { 593113584Ssimokawa m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 594113584Ssimokawa STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 595113584Ssimokawa } else 596113584Ssimokawa printf("fwe_as_input: m_getcl failed\n"); 597111942Ssimokawa 598111942Ssimokawa m->m_data += HDR_LEN + ETHER_ALIGN; 599111942Ssimokawa c = mtod(m, char *); 600111942Ssimokawa#if __FreeBSD_version < 500000 601111942Ssimokawa eh = (struct ether_header *)c; 602111942Ssimokawa m->m_data += sizeof(struct ether_header); 603108712Ssimokawa#endif 604111942Ssimokawa m->m_len = m->m_pkthdr.len = 605113584Ssimokawa fp->mode.stream.len - ETHER_ALIGN; 606103285Sikob m->m_pkthdr.rcvif = ifp; 607103285Sikob#if 0 608103285Sikob FWEDEBUG("%02x %02x %02x %02x %02x %02x\n" 609103285Sikob "%02x %02x %02x %02x %02x %02x\n" 610103285Sikob "%02x %02x %02x %02x\n" 611103285Sikob "%02x %02x %02x %02x\n" 612103285Sikob "%02x %02x %02x %02x\n" 613103285Sikob "%02x %02x %02x %02x\n", 614103285Sikob c[0], c[1], c[2], c[3], c[4], c[5], 615103285Sikob c[6], c[7], c[8], c[9], c[10], c[11], 616103285Sikob c[12], c[13], c[14], c[15], 617103285Sikob c[16], c[17], c[18], c[19], 618103285Sikob c[20], c[21], c[22], c[23], 619103285Sikob c[20], c[21], c[22], c[23] 620103285Sikob ); 621103285Sikob#endif 622108712Ssimokawa#if __FreeBSD_version >= 500000 623106937Ssam (*ifp->if_input)(ifp, m); 624108712Ssimokawa#else 625108712Ssimokawa ether_input(ifp, eh, m); 626108712Ssimokawa#endif 627103285Sikob ifp->if_ipackets ++; 628103285Sikob } 629111942Ssimokawa if (STAILQ_FIRST(&xferq->stfree) != NULL) 630111942Ssimokawa fwe->fd.fc->irx_enable(fwe->fd.fc, fwe->dma_ch); 631103285Sikob} 632103285Sikob 633103285Sikob 634103285Sikobstatic devclass_t fwe_devclass; 635103285Sikob 636103285Sikobstatic device_method_t fwe_methods[] = { 637103285Sikob /* device interface */ 638103285Sikob DEVMETHOD(device_identify, fwe_identify), 639103285Sikob DEVMETHOD(device_probe, fwe_probe), 640103285Sikob DEVMETHOD(device_attach, fwe_attach), 641103285Sikob DEVMETHOD(device_detach, fwe_detach), 642103285Sikob { 0, 0 } 643103285Sikob}; 644103285Sikob 645103285Sikobstatic driver_t fwe_driver = { 646103285Sikob "if_fwe", 647103285Sikob fwe_methods, 648103285Sikob sizeof(struct fwe_softc), 649103285Sikob}; 650103285Sikob 651103285Sikob 652113506SmdoddDRIVER_MODULE(fwe, firewire, fwe_driver, fwe_devclass, 0, 0); 653113506SmdoddMODULE_VERSION(fwe, 1); 654113506SmdoddMODULE_DEPEND(fwe, firewire, 1, 1, 1); 655