if_fwe.c revision 193096
1139749Simp/*- 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 193096 2009-05-30 15:14:44Z attilio $ 35103285Sikob */ 36103285Sikob 37150968Sglebius#ifdef HAVE_KERNEL_OPTION_HEADERS 38150968Sglebius#include "opt_device_polling.h" 39103285Sikob#include "opt_inet.h" 40150968Sglebius#endif 41103285Sikob 42103285Sikob#include <sys/param.h> 43103285Sikob#include <sys/kernel.h> 44103285Sikob#include <sys/malloc.h> 45103285Sikob#include <sys/mbuf.h> 46103285Sikob#include <sys/socket.h> 47103285Sikob#include <sys/sockio.h> 48103285Sikob#include <sys/sysctl.h> 49103285Sikob#include <sys/systm.h> 50103285Sikob#include <sys/module.h> 51103285Sikob#include <sys/bus.h> 52113584Ssimokawa#include <machine/bus.h> 53103285Sikob 54103285Sikob#include <net/bpf.h> 55103285Sikob#include <net/ethernet.h> 56103285Sikob#include <net/if.h> 57103285Sikob#include <net/if_arp.h> 58147256Sbrooks#include <net/if_types.h> 59127468Ssimokawa#ifdef __DragonFly__ 60127468Ssimokawa#include <net/vlan/if_vlan_var.h> 61127468Ssimokawa#include <bus/firewire/firewire.h> 62127468Ssimokawa#include <bus/firewire/firewirereg.h> 63127468Ssimokawa#include "if_fwevar.h" 64127468Ssimokawa#else 65103285Sikob#include <net/if_vlan_var.h> 66103285Sikob 67103285Sikob#include <dev/firewire/firewire.h> 68103285Sikob#include <dev/firewire/firewirereg.h> 69103285Sikob#include <dev/firewire/if_fwevar.h> 70127468Ssimokawa#endif 71103285Sikob 72122161Ssimokawa#define FWEDEBUG if (fwedebug) if_printf 73111942Ssimokawa#define TX_MAX_QUEUE (FWMAXQUEUE - 1) 74103285Sikob 75103285Sikob/* network interface */ 76124169Ssimokawastatic void fwe_start (struct ifnet *); 77124169Ssimokawastatic int fwe_ioctl (struct ifnet *, u_long, caddr_t); 78124169Ssimokawastatic void fwe_init (void *); 79103285Sikob 80124169Ssimokawastatic void fwe_output_callback (struct fw_xfer *); 81124169Ssimokawastatic void fwe_as_output (struct fwe_softc *, struct ifnet *); 82124169Ssimokawastatic void fwe_as_input (struct fw_xferq *); 83103285Sikob 84103285Sikobstatic int fwedebug = 0; 85103285Sikobstatic int stream_ch = 1; 86116139Ssimokawastatic int tx_speed = 2; 87122603Ssimokawastatic int rx_queue_len = FWMAXQUEUE; 88103285Sikob 89108281SsimokawaMALLOC_DEFINE(M_FWE, "if_fwe", "Ethernet over FireWire interface"); 90103285SikobSYSCTL_INT(_debug, OID_AUTO, if_fwe_debug, CTLFLAG_RW, &fwedebug, 0, ""); 91103285SikobSYSCTL_DECL(_hw_firewire); 92103285SikobSYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD, 0, 93122603Ssimokawa "Ethernet emulation subsystem"); 94103285SikobSYSCTL_INT(_hw_firewire_fwe, OID_AUTO, stream_ch, CTLFLAG_RW, &stream_ch, 0, 95103285Sikob "Stream channel to use"); 96116139SsimokawaSYSCTL_INT(_hw_firewire_fwe, OID_AUTO, tx_speed, CTLFLAG_RW, &tx_speed, 0, 97122603Ssimokawa "Transmission speed"); 98122603SsimokawaSYSCTL_INT(_hw_firewire_fwe, OID_AUTO, rx_queue_len, CTLFLAG_RW, &rx_queue_len, 99122603Ssimokawa 0, "Length of the receive queue"); 100103285Sikob 101122603SsimokawaTUNABLE_INT("hw.firewire.fwe.stream_ch", &stream_ch); 102122603SsimokawaTUNABLE_INT("hw.firewire.fwe.tx_speed", &tx_speed); 103122603SsimokawaTUNABLE_INT("hw.firewire.fwe.rx_queue_len", &rx_queue_len); 104122603Ssimokawa 105103285Sikob#ifdef DEVICE_POLLING 106103285Sikobstatic poll_handler_t fwe_poll; 107103285Sikob 108193096Sattiliostatic int 109103285Sikobfwe_poll(struct ifnet *ifp, enum poll_cmd cmd, int count) 110103285Sikob{ 111103285Sikob struct fwe_softc *fwe; 112103285Sikob struct firewire_comm *fc; 113103285Sikob 114150789Sglebius if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 115193096Sattilio return (0); 116150789Sglebius 117103285Sikob fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 118103285Sikob fc = fwe->fd.fc; 119103285Sikob fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count); 120193096Sattilio return (0); 121103285Sikob} 122150789Sglebius#endif /* DEVICE_POLLING */ 123150789Sglebius 124103285Sikobstatic void 125103285Sikobfwe_identify(driver_t *driver, device_t parent) 126103285Sikob{ 127121953Ssimokawa BUS_ADD_CHILD(parent, 0, "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; 150147256Sbrooks#if defined(__DragonFly__) || __FreeBSD_version < 500000 151103285Sikob u_char *eaddr; 152147256Sbrooks#else 153147256Sbrooks u_char eaddr[6]; 154147256Sbrooks#endif 155109814Ssimokawa struct fw_eui64 *eui; 156103285Sikob 157103285Sikob fwe = ((struct fwe_softc *)device_get_softc(dev)); 158103285Sikob unit = device_get_unit(dev); 159103285Sikob 160103285Sikob bzero(fwe, sizeof(struct fwe_softc)); 161170374Ssimokawa mtx_init(&fwe->mtx, "fwe", NULL, MTX_DEF); 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) 181147256Sbrooks#if defined(__DragonFly__) || __FreeBSD_version < 500000 182147256Sbrooks eaddr = &IFP2ENADDR(fwe->eth_softc.ifp)[0]; 183147256Sbrooks#endif 184109814Ssimokawa 185147256Sbrooks 186109814Ssimokawa eui = &fwe->fd.fc->eui; 187109814Ssimokawa eaddr[0] = (FW_EUI64_BYTE(eui, 0) | LOCAL) & ~GROUP; 188109814Ssimokawa eaddr[1] = FW_EUI64_BYTE(eui, 1); 189109814Ssimokawa eaddr[2] = FW_EUI64_BYTE(eui, 2); 190109814Ssimokawa eaddr[3] = FW_EUI64_BYTE(eui, 5); 191109814Ssimokawa eaddr[4] = FW_EUI64_BYTE(eui, 6); 192109814Ssimokawa eaddr[5] = FW_EUI64_BYTE(eui, 7); 193107653Ssimokawa printf("if_fwe%d: Fake Ethernet address: " 194107653Ssimokawa "%02x:%02x:%02x:%02x:%02x:%02x\n", unit, 195103285Sikob eaddr[0], eaddr[1], eaddr[2], eaddr[3], eaddr[4], eaddr[5]); 196103285Sikob 197103285Sikob /* fill the rest and attach interface */ 198147256Sbrooks ifp = fwe->eth_softc.ifp = if_alloc(IFT_ETHER); 199147256Sbrooks if (ifp == NULL) { 200147256Sbrooks device_printf(dev, "can not if_alloc()\n"); 201147256Sbrooks return (ENOSPC); 202147256Sbrooks } 203103285Sikob ifp->if_softc = &fwe->eth_softc; 204103285Sikob 205127468Ssimokawa#if __FreeBSD_version >= 501113 || defined(__DragonFly__) 206121953Ssimokawa if_initname(ifp, device_get_name(dev), unit); 207122212Ssimokawa#else 208122212Ssimokawa ifp->if_unit = unit; 209122212Ssimokawa ifp->if_name = "fwe"; 210122212Ssimokawa#endif 211103285Sikob ifp->if_init = fwe_init; 212132430Ssimokawa#if defined(__DragonFly__) || __FreeBSD_version < 500000 213132430Ssimokawa ifp->if_output = ether_output; 214132430Ssimokawa#endif 215103285Sikob ifp->if_start = fwe_start; 216103285Sikob ifp->if_ioctl = fwe_ioctl; 217103285Sikob ifp->if_mtu = ETHERMTU; 218170374Ssimokawa ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST); 219111942Ssimokawa ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE; 220103285Sikob 221103285Sikob s = splimp(); 222127468Ssimokawa#if defined(__DragonFly__) || __FreeBSD_version < 500000 223127468Ssimokawa ether_ifattach(ifp, 1); 224127468Ssimokawa#else 225106937Ssam ether_ifattach(ifp, eaddr); 226108712Ssimokawa#endif 227103285Sikob splx(s); 228103285Sikob 229103285Sikob /* Tell the upper layer(s) we support long frames. */ 230103285Sikob ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 231127468Ssimokawa#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 232151229Sglebius ifp->if_capabilities |= IFCAP_VLAN_MTU | IFCAP_POLLING; 233129552Syar ifp->if_capenable |= IFCAP_VLAN_MTU; 234108712Ssimokawa#endif 235103285Sikob 236103285Sikob 237122161Ssimokawa FWEDEBUG(ifp, "interface created\n"); 238103285Sikob return 0; 239103285Sikob} 240103285Sikob 241103285Sikobstatic void 242103285Sikobfwe_stop(struct fwe_softc *fwe) 243103285Sikob{ 244103285Sikob struct firewire_comm *fc; 245103285Sikob struct fw_xferq *xferq; 246147256Sbrooks struct ifnet *ifp = fwe->eth_softc.ifp; 247111942Ssimokawa struct fw_xfer *xfer, *next; 248111942Ssimokawa int i; 249103285Sikob 250103285Sikob fc = fwe->fd.fc; 251103285Sikob 252103285Sikob if (fwe->dma_ch >= 0) { 253103285Sikob xferq = fc->ir[fwe->dma_ch]; 254103285Sikob 255103285Sikob if (xferq->flag & FWXFERQ_RUNNING) 256103285Sikob fc->irx_disable(fc, fwe->dma_ch); 257103285Sikob xferq->flag &= 258113584Ssimokawa ~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM | 259113584Ssimokawa FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK); 260111942Ssimokawa xferq->hand = NULL; 261111942Ssimokawa 262111942Ssimokawa for (i = 0; i < xferq->bnchunk; i ++) 263111942Ssimokawa m_freem(xferq->bulkxfer[i].mbuf); 264111942Ssimokawa free(xferq->bulkxfer, M_FWE); 265111942Ssimokawa 266111942Ssimokawa for (xfer = STAILQ_FIRST(&fwe->xferlist); xfer != NULL; 267111942Ssimokawa xfer = next) { 268111942Ssimokawa next = STAILQ_NEXT(xfer, link); 269111942Ssimokawa fw_xfer_free(xfer); 270111942Ssimokawa } 271111942Ssimokawa STAILQ_INIT(&fwe->xferlist); 272111942Ssimokawa 273111942Ssimokawa xferq->bulkxfer = NULL; 274103285Sikob fwe->dma_ch = -1; 275103285Sikob } 276103285Sikob 277148887Srwatson#if defined(__FreeBSD__) 278148887Srwatson ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 279148887Srwatson#else 280103285Sikob ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 281148887Srwatson#endif 282103285Sikob} 283103285Sikob 284103285Sikobstatic int 285103285Sikobfwe_detach(device_t dev) 286103285Sikob{ 287103285Sikob struct fwe_softc *fwe; 288147256Sbrooks struct ifnet *ifp; 289103285Sikob int s; 290103285Sikob 291147256Sbrooks fwe = device_get_softc(dev); 292147256Sbrooks ifp = fwe->eth_softc.ifp; 293150789Sglebius 294150789Sglebius#ifdef DEVICE_POLLING 295150789Sglebius if (ifp->if_capenable & IFCAP_POLLING) 296150789Sglebius ether_poll_deregister(ifp); 297150789Sglebius#endif 298103285Sikob s = splimp(); 299103285Sikob 300103285Sikob fwe_stop(fwe); 301127468Ssimokawa#if defined(__DragonFly__) || __FreeBSD_version < 500000 302147256Sbrooks ether_ifdetach(ifp, 1); 303127468Ssimokawa#else 304147256Sbrooks ether_ifdetach(ifp); 305147256Sbrooks if_free(ifp); 306108712Ssimokawa#endif 307103285Sikob 308103285Sikob splx(s); 309170374Ssimokawa mtx_destroy(&fwe->mtx); 310103285Sikob return 0; 311103285Sikob} 312103285Sikob 313103285Sikobstatic void 314103285Sikobfwe_init(void *arg) 315103285Sikob{ 316103285Sikob struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe; 317103285Sikob struct firewire_comm *fc; 318147256Sbrooks struct ifnet *ifp = fwe->eth_softc.ifp; 319103285Sikob struct fw_xferq *xferq; 320111942Ssimokawa struct fw_xfer *xfer; 321113584Ssimokawa struct mbuf *m; 322103285Sikob int i; 323103285Sikob 324122161Ssimokawa FWEDEBUG(ifp, "initializing\n"); 325103285Sikob 326103285Sikob /* XXX keep promiscoud mode */ 327103285Sikob ifp->if_flags |= IFF_PROMISC; 328103285Sikob 329103285Sikob fc = fwe->fd.fc; 330103285Sikob if (fwe->dma_ch < 0) { 331170374Ssimokawa fwe->dma_ch = fw_open_isodma(fc, /* tx */0); 332170374Ssimokawa if (fwe->dma_ch < 0) 333170374Ssimokawa return; 334170374Ssimokawa xferq = fc->ir[fwe->dma_ch]; 335170374Ssimokawa xferq->flag |= FWXFERQ_EXTBUF | 336170374Ssimokawa FWXFERQ_HANDLER | FWXFERQ_STREAM; 337103285Sikob fwe->stream_ch = stream_ch; 338103285Sikob fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch; 339112400Ssimokawa xferq->flag &= ~0xff; 340103285Sikob xferq->flag |= fwe->stream_ch & 0xff; 341103285Sikob /* register fwe_input handler */ 342103285Sikob xferq->sc = (caddr_t) fwe; 343103285Sikob xferq->hand = fwe_as_input; 344122603Ssimokawa xferq->bnchunk = rx_queue_len; 345111942Ssimokawa xferq->bnpacket = 1; 346111942Ssimokawa xferq->psize = MCLBYTES; 347111942Ssimokawa xferq->queued = 0; 348113584Ssimokawa xferq->buf = NULL; 349111942Ssimokawa xferq->bulkxfer = (struct fw_bulkxfer *) malloc( 350113584Ssimokawa sizeof(struct fw_bulkxfer) * xferq->bnchunk, 351113584Ssimokawa M_FWE, M_WAITOK); 352111942Ssimokawa if (xferq->bulkxfer == NULL) { 353111942Ssimokawa printf("if_fwe: malloc failed\n"); 354111942Ssimokawa return; 355111942Ssimokawa } 356111942Ssimokawa STAILQ_INIT(&xferq->stvalid); 357111942Ssimokawa STAILQ_INIT(&xferq->stfree); 358111942Ssimokawa STAILQ_INIT(&xferq->stdma); 359111942Ssimokawa xferq->stproc = NULL; 360111942Ssimokawa for (i = 0; i < xferq->bnchunk; i ++) { 361177599Sru m = m_getcl(M_WAIT, MT_DATA, M_PKTHDR); 362113584Ssimokawa xferq->bulkxfer[i].mbuf = m; 363177599Sru m->m_len = m->m_pkthdr.len = m->m_ext.ext_size; 364177599Sru STAILQ_INSERT_TAIL(&xferq->stfree, 365177599Sru &xferq->bulkxfer[i], link); 366111942Ssimokawa } 367111942Ssimokawa STAILQ_INIT(&fwe->xferlist); 368111942Ssimokawa for (i = 0; i < TX_MAX_QUEUE; i++) { 369111942Ssimokawa xfer = fw_xfer_alloc(M_FWE); 370111942Ssimokawa if (xfer == NULL) 371111942Ssimokawa break; 372120660Ssimokawa xfer->send.spd = tx_speed; 373111942Ssimokawa xfer->fc = fwe->fd.fc; 374111942Ssimokawa xfer->sc = (caddr_t)fwe; 375167632Ssimokawa xfer->hand = fwe_output_callback; 376111942Ssimokawa STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 377111942Ssimokawa } 378103285Sikob } else 379103285Sikob xferq = fc->ir[fwe->dma_ch]; 380103285Sikob 381103285Sikob 382103285Sikob /* start dma */ 383103285Sikob if ((xferq->flag & FWXFERQ_RUNNING) == 0) 384103285Sikob fc->irx_enable(fc, fwe->dma_ch); 385103285Sikob 386148887Srwatson#if defined(__FreeBSD__) 387148887Srwatson ifp->if_drv_flags |= IFF_DRV_RUNNING; 388148887Srwatson ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 389148887Srwatson#else 390103285Sikob ifp->if_flags |= IFF_RUNNING; 391103285Sikob ifp->if_flags &= ~IFF_OACTIVE; 392148887Srwatson#endif 393103285Sikob 394103285Sikob#if 0 395103285Sikob /* attempt to start output */ 396103285Sikob fwe_start(ifp); 397103285Sikob#endif 398103285Sikob} 399103285Sikob 400103285Sikob 401103285Sikobstatic int 402103285Sikobfwe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 403103285Sikob{ 404103285Sikob struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 405103285Sikob struct ifstat *ifs = NULL; 406103285Sikob int s, error, len; 407103285Sikob 408103285Sikob switch (cmd) { 409103285Sikob case SIOCSIFFLAGS: 410103285Sikob s = splimp(); 411103285Sikob if (ifp->if_flags & IFF_UP) { 412148887Srwatson#if defined(__FreeBSD__) 413148887Srwatson if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) 414148887Srwatson#else 415103285Sikob if (!(ifp->if_flags & IFF_RUNNING)) 416148887Srwatson#endif 417103285Sikob fwe_init(&fwe->eth_softc); 418103285Sikob } else { 419148887Srwatson#if defined(__FreeBSD__) 420148887Srwatson if (ifp->if_drv_flags & IFF_DRV_RUNNING) 421148887Srwatson#else 422103285Sikob if (ifp->if_flags & IFF_RUNNING) 423148887Srwatson#endif 424103285Sikob fwe_stop(fwe); 425103285Sikob } 426103285Sikob /* XXX keep promiscoud mode */ 427103285Sikob ifp->if_flags |= IFF_PROMISC; 428103285Sikob splx(s); 429103285Sikob break; 430103285Sikob case SIOCADDMULTI: 431103285Sikob case SIOCDELMULTI: 432108712Ssimokawa break; 433103285Sikob 434103285Sikob case SIOCGIFSTATUS: 435103285Sikob s = splimp(); 436103285Sikob ifs = (struct ifstat *)data; 437103285Sikob len = strlen(ifs->ascii); 438103285Sikob if (len < sizeof(ifs->ascii)) 439103285Sikob snprintf(ifs->ascii + len, 440103285Sikob sizeof(ifs->ascii) - len, 441103285Sikob "\tch %d dma %d\n", 442103285Sikob fwe->stream_ch, fwe->dma_ch); 443103285Sikob splx(s); 444108712Ssimokawa break; 445150789Sglebius case SIOCSIFCAP: 446150789Sglebius#ifdef DEVICE_POLLING 447150789Sglebius { 448150789Sglebius struct ifreq *ifr = (struct ifreq *) data; 449188394Sfjoe struct firewire_comm *fc = fwe->fd.fc; 450150789Sglebius 451150789Sglebius if (ifr->ifr_reqcap & IFCAP_POLLING && 452150789Sglebius !(ifp->if_capenable & IFCAP_POLLING)) { 453150789Sglebius error = ether_poll_register(fwe_poll, ifp); 454150789Sglebius if (error) 455150789Sglebius return(error); 456150789Sglebius /* Disable interrupts */ 457150789Sglebius fc->set_intr(fc, 0); 458150789Sglebius ifp->if_capenable |= IFCAP_POLLING; 459193096Sattilio ifp->if_capenable |= IFCAP_POLLING_NOCOUNT; 460150789Sglebius return (error); 461150789Sglebius } 462150789Sglebius if (!(ifr->ifr_reqcap & IFCAP_POLLING) && 463150789Sglebius ifp->if_capenable & IFCAP_POLLING) { 464150789Sglebius error = ether_poll_deregister(ifp); 465150789Sglebius /* Enable interrupts. */ 466150789Sglebius fc->set_intr(fc, 1); 467150789Sglebius ifp->if_capenable &= ~IFCAP_POLLING; 468193096Sattilio ifp->if_capenable &= ~IFCAP_POLLING_NOCOUNT; 469150789Sglebius return (error); 470150789Sglebius } 471150789Sglebius } 472150789Sglebius#endif /* DEVICE_POLLING */ 473150789Sglebius break; 474127468Ssimokawa#if defined(__FreeBSD__) && __FreeBSD_version >= 500000 475103285Sikob default: 476108712Ssimokawa#else 477108712Ssimokawa case SIOCSIFADDR: 478108712Ssimokawa case SIOCGIFADDR: 479108712Ssimokawa case SIOCSIFMTU: 480108712Ssimokawa#endif 481106937Ssam s = splimp(); 482106937Ssam error = ether_ioctl(ifp, cmd, data); 483106937Ssam splx(s); 484106937Ssam return (error); 485127468Ssimokawa#if defined(__DragonFly__) || __FreeBSD_version < 500000 486108712Ssimokawa default: 487108712Ssimokawa return (EINVAL); 488108712Ssimokawa#endif 489103285Sikob } 490103285Sikob 491103285Sikob return (0); 492103285Sikob} 493103285Sikob 494103285Sikobstatic void 495111942Ssimokawafwe_output_callback(struct fw_xfer *xfer) 496111942Ssimokawa{ 497111942Ssimokawa struct fwe_softc *fwe; 498111942Ssimokawa struct ifnet *ifp; 499111942Ssimokawa int s; 500111942Ssimokawa 501111942Ssimokawa fwe = (struct fwe_softc *)xfer->sc; 502147256Sbrooks ifp = fwe->eth_softc.ifp; 503111942Ssimokawa /* XXX error check */ 504122161Ssimokawa FWEDEBUG(ifp, "resp = %d\n", xfer->resp); 505111942Ssimokawa if (xfer->resp != 0) 506111942Ssimokawa ifp->if_oerrors ++; 507111942Ssimokawa 508111942Ssimokawa m_freem(xfer->mbuf); 509111942Ssimokawa fw_xfer_unload(xfer); 510113584Ssimokawa 511111942Ssimokawa s = splimp(); 512170374Ssimokawa FWE_LOCK(fwe); 513111942Ssimokawa STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link); 514170374Ssimokawa FWE_UNLOCK(fwe); 515111942Ssimokawa splx(s); 516113584Ssimokawa 517113584Ssimokawa /* for queue full */ 518111942Ssimokawa if (ifp->if_snd.ifq_head != NULL) 519111942Ssimokawa fwe_start(ifp); 520111942Ssimokawa} 521111942Ssimokawa 522111942Ssimokawastatic void 523103285Sikobfwe_start(struct ifnet *ifp) 524103285Sikob{ 525103285Sikob struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe; 526103285Sikob int s; 527103285Sikob 528122161Ssimokawa FWEDEBUG(ifp, "starting\n"); 529103285Sikob 530103285Sikob if (fwe->dma_ch < 0) { 531103285Sikob struct mbuf *m = NULL; 532103285Sikob 533122161Ssimokawa FWEDEBUG(ifp, "not ready\n"); 534103285Sikob 535103285Sikob s = splimp(); 536103285Sikob do { 537103285Sikob IF_DEQUEUE(&ifp->if_snd, m); 538103285Sikob if (m != NULL) 539103285Sikob m_freem(m); 540103285Sikob ifp->if_oerrors ++; 541103285Sikob } while (m != NULL); 542103285Sikob splx(s); 543103285Sikob 544103285Sikob return; 545103285Sikob } 546103285Sikob 547103285Sikob s = splimp(); 548148887Srwatson#if defined(__FreeBSD__) 549148887Srwatson ifp->if_drv_flags |= IFF_DRV_OACTIVE; 550148887Srwatson#else 551103285Sikob ifp->if_flags |= IFF_OACTIVE; 552148887Srwatson#endif 553103285Sikob 554103285Sikob if (ifp->if_snd.ifq_len != 0) 555103285Sikob fwe_as_output(fwe, ifp); 556103285Sikob 557148887Srwatson#if defined(__FreeBSD__) 558148887Srwatson ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 559148887Srwatson#else 560103285Sikob ifp->if_flags &= ~IFF_OACTIVE; 561148887Srwatson#endif 562103285Sikob splx(s); 563103285Sikob} 564103285Sikob 565111942Ssimokawa#define HDR_LEN 4 566111942Ssimokawa#ifndef ETHER_ALIGN 567111942Ssimokawa#define ETHER_ALIGN 2 568103285Sikob#endif 569103285Sikob/* Async. stream output */ 570103285Sikobstatic void 571103285Sikobfwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp) 572103285Sikob{ 573103285Sikob struct mbuf *m; 574103285Sikob struct fw_xfer *xfer; 575103285Sikob struct fw_xferq *xferq; 576103285Sikob struct fw_pkt *fp; 577103285Sikob int i = 0; 578103285Sikob 579103285Sikob xfer = NULL; 580103285Sikob xferq = fwe->fd.fc->atq; 581170374Ssimokawa while ((xferq->queued < xferq->maxq - 1) && 582170374Ssimokawa (ifp->if_snd.ifq_head != NULL)) { 583170374Ssimokawa FWE_LOCK(fwe); 584111942Ssimokawa xfer = STAILQ_FIRST(&fwe->xferlist); 585111942Ssimokawa if (xfer == NULL) { 586170374Ssimokawa#if 0 587111942Ssimokawa printf("if_fwe: lack of xfer\n"); 588170374Ssimokawa#endif 589170374Ssimokawa FWE_UNLOCK(fwe); 590170374Ssimokawa break; 591111942Ssimokawa } 592170374Ssimokawa STAILQ_REMOVE_HEAD(&fwe->xferlist, link); 593170374Ssimokawa FWE_UNLOCK(fwe); 594170374Ssimokawa 595103285Sikob IF_DEQUEUE(&ifp->if_snd, m); 596170374Ssimokawa if (m == NULL) { 597170374Ssimokawa FWE_LOCK(fwe); 598170374Ssimokawa STAILQ_INSERT_HEAD(&fwe->xferlist, xfer, link); 599170374Ssimokawa FWE_UNLOCK(fwe); 600103285Sikob break; 601170374Ssimokawa } 602127468Ssimokawa#if defined(__DragonFly__) || __FreeBSD_version < 500000 603108712Ssimokawa if (ifp->if_bpf != NULL) 604108712Ssimokawa bpf_mtap(ifp, m); 605127468Ssimokawa#else 606127468Ssimokawa BPF_MTAP(ifp, m); 607108712Ssimokawa#endif 608103285Sikob 609103285Sikob /* keep ip packet alignment for alpha */ 610111942Ssimokawa M_PREPEND(m, ETHER_ALIGN, M_DONTWAIT); 611120660Ssimokawa fp = &xfer->send.hdr; 612129585Sdfr *(uint32_t *)&xfer->send.hdr = *(int32_t *)&fwe->pkt_hdr; 613113584Ssimokawa fp->mode.stream.len = m->m_pkthdr.len; 614103285Sikob xfer->mbuf = m; 615120660Ssimokawa xfer->send.pay_len = m->m_pkthdr.len; 616103285Sikob 617111942Ssimokawa if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) { 618103285Sikob /* error */ 619103285Sikob ifp->if_oerrors ++; 620103285Sikob /* XXX set error code */ 621103285Sikob fwe_output_callback(xfer); 622103285Sikob } else { 623103285Sikob ifp->if_opackets ++; 624111942Ssimokawa i++; 625103285Sikob } 626103285Sikob } 627103285Sikob#if 0 628103285Sikob if (i > 1) 629103285Sikob printf("%d queued\n", i); 630103285Sikob#endif 631111942Ssimokawa if (i > 0) 632111942Ssimokawa xferq->start(fwe->fd.fc); 633103285Sikob} 634103285Sikob 635103285Sikob/* Async. stream output */ 636103285Sikobstatic void 637103285Sikobfwe_as_input(struct fw_xferq *xferq) 638103285Sikob{ 639113584Ssimokawa struct mbuf *m, *m0; 640103285Sikob struct ifnet *ifp; 641103285Sikob struct fwe_softc *fwe; 642111942Ssimokawa struct fw_bulkxfer *sxfer; 643111942Ssimokawa struct fw_pkt *fp; 644103285Sikob u_char *c; 645127468Ssimokawa#if defined(__DragonFly__) || __FreeBSD_version < 500000 646111942Ssimokawa struct ether_header *eh; 647111942Ssimokawa#endif 648103285Sikob 649103285Sikob fwe = (struct fwe_softc *)xferq->sc; 650147256Sbrooks ifp = fwe->eth_softc.ifp; 651150789Sglebius 652170374Ssimokawa /* We do not need a lock here because the bottom half is serialized */ 653111942Ssimokawa while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) { 654111942Ssimokawa STAILQ_REMOVE_HEAD(&xferq->stvalid, link); 655113584Ssimokawa fp = mtod(sxfer->mbuf, struct fw_pkt *); 656111942Ssimokawa if (fwe->fd.fc->irx_post != NULL) 657111942Ssimokawa fwe->fd.fc->irx_post(fwe->fd.fc, fp->mode.ld); 658111942Ssimokawa m = sxfer->mbuf; 659111942Ssimokawa 660119119Ssimokawa /* insert new rbuf */ 661113584Ssimokawa sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 662113584Ssimokawa if (m0 != NULL) { 663113584Ssimokawa m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size; 664113584Ssimokawa STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link); 665113584Ssimokawa } else 666170374Ssimokawa printf("%s: m_getcl failed\n", __FUNCTION__); 667111942Ssimokawa 668119119Ssimokawa if (sxfer->resp != 0 || fp->mode.stream.len < 669119119Ssimokawa ETHER_ALIGN + sizeof(struct ether_header)) { 670119119Ssimokawa m_freem(m); 671119119Ssimokawa ifp->if_ierrors ++; 672119119Ssimokawa continue; 673119119Ssimokawa } 674119119Ssimokawa 675111942Ssimokawa m->m_data += HDR_LEN + ETHER_ALIGN; 676170374Ssimokawa c = mtod(m, u_char *); 677127468Ssimokawa#if defined(__DragonFly__) || __FreeBSD_version < 500000 678111942Ssimokawa eh = (struct ether_header *)c; 679111942Ssimokawa m->m_data += sizeof(struct ether_header); 680132429Ssimokawa m->m_len = m->m_pkthdr.len = fp->mode.stream.len - ETHER_ALIGN 681132429Ssimokawa - sizeof(struct ether_header); 682132429Ssimokawa#else 683132429Ssimokawa m->m_len = m->m_pkthdr.len = fp->mode.stream.len - ETHER_ALIGN; 684108712Ssimokawa#endif 685103285Sikob m->m_pkthdr.rcvif = ifp; 686103285Sikob#if 0 687122161Ssimokawa FWEDEBUG(ifp, "%02x %02x %02x %02x %02x %02x\n" 688103285Sikob "%02x %02x %02x %02x %02x %02x\n" 689103285Sikob "%02x %02x %02x %02x\n" 690103285Sikob "%02x %02x %02x %02x\n" 691103285Sikob "%02x %02x %02x %02x\n" 692103285Sikob "%02x %02x %02x %02x\n", 693103285Sikob c[0], c[1], c[2], c[3], c[4], c[5], 694103285Sikob c[6], c[7], c[8], c[9], c[10], c[11], 695103285Sikob c[12], c[13], c[14], c[15], 696103285Sikob c[16], c[17], c[18], c[19], 697103285Sikob c[20], c[21], c[22], c[23], 698103285Sikob c[20], c[21], c[22], c[23] 699103285Sikob ); 700103285Sikob#endif 701127468Ssimokawa#if defined(__DragonFly__) || __FreeBSD_version < 500000 702127468Ssimokawa ether_input(ifp, eh, m); 703127468Ssimokawa#else 704106937Ssam (*ifp->if_input)(ifp, m); 705108712Ssimokawa#endif 706103285Sikob ifp->if_ipackets ++; 707103285Sikob } 708111942Ssimokawa if (STAILQ_FIRST(&xferq->stfree) != NULL) 709111942Ssimokawa fwe->fd.fc->irx_enable(fwe->fd.fc, fwe->dma_ch); 710103285Sikob} 711103285Sikob 712103285Sikob 713103285Sikobstatic devclass_t fwe_devclass; 714103285Sikob 715103285Sikobstatic device_method_t fwe_methods[] = { 716103285Sikob /* device interface */ 717103285Sikob DEVMETHOD(device_identify, fwe_identify), 718103285Sikob DEVMETHOD(device_probe, fwe_probe), 719103285Sikob DEVMETHOD(device_attach, fwe_attach), 720103285Sikob DEVMETHOD(device_detach, fwe_detach), 721103285Sikob { 0, 0 } 722103285Sikob}; 723103285Sikob 724103285Sikobstatic driver_t fwe_driver = { 725121953Ssimokawa "fwe", 726103285Sikob fwe_methods, 727103285Sikob sizeof(struct fwe_softc), 728103285Sikob}; 729103285Sikob 730103285Sikob 731127468Ssimokawa#ifdef __DragonFly__ 732127468SsimokawaDECLARE_DUMMY_MODULE(fwe); 733127468Ssimokawa#endif 734113506SmdoddDRIVER_MODULE(fwe, firewire, fwe_driver, fwe_devclass, 0, 0); 735113506SmdoddMODULE_VERSION(fwe, 1); 736113506SmdoddMODULE_DEPEND(fwe, firewire, 1, 1, 1); 737