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/*-
* Copyright (c) 2002-2003
* Hidetoshi Shimokawa. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
*
* This product includes software developed by Hidetoshi Shimokawa.
*
* 4. Neither the name of the author nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: release/9.1.0/sys/dev/firewire/if_fwe.c 193096 2009-05-30 15:14:44Z attilio $
*/
#ifdef HAVE_KERNEL_OPTION_HEADERS
#include "opt_device_polling.h"
#include "opt_inet.h"
#endif
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/systm.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <net/bpf.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/if_types.h>
#ifdef __DragonFly__
#include <net/vlan/if_vlan_var.h>
#include <bus/firewire/firewire.h>
#include <bus/firewire/firewirereg.h>
#include "if_fwevar.h"
#else
#include <net/if_vlan_var.h>
#include <dev/firewire/firewire.h>
#include <dev/firewire/firewirereg.h>
#include <dev/firewire/if_fwevar.h>
#endif
#define FWEDEBUG if (fwedebug) if_printf
#define TX_MAX_QUEUE (FWMAXQUEUE - 1)
/* network interface */
static void fwe_start (struct ifnet *);
static int fwe_ioctl (struct ifnet *, u_long, caddr_t);
static void fwe_init (void *);
static void fwe_output_callback (struct fw_xfer *);
static void fwe_as_output (struct fwe_softc *, struct ifnet *);
static void fwe_as_input (struct fw_xferq *);
static int fwedebug = 0;
static int stream_ch = 1;
static int tx_speed = 2;
static int rx_queue_len = FWMAXQUEUE;
MALLOC_DEFINE(M_FWE, "if_fwe", "Ethernet over FireWire interface");
SYSCTL_INT(_debug, OID_AUTO, if_fwe_debug, CTLFLAG_RW, &fwedebug, 0, "");
SYSCTL_DECL(_hw_firewire);
SYSCTL_NODE(_hw_firewire, OID_AUTO, fwe, CTLFLAG_RD, 0,
"Ethernet emulation subsystem");
SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, stream_ch, CTLFLAG_RW, &stream_ch, 0,
"Stream channel to use");
SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, tx_speed, CTLFLAG_RW, &tx_speed, 0,
"Transmission speed");
SYSCTL_INT(_hw_firewire_fwe, OID_AUTO, rx_queue_len, CTLFLAG_RW, &rx_queue_len,
0, "Length of the receive queue");
TUNABLE_INT("hw.firewire.fwe.stream_ch", &stream_ch);
TUNABLE_INT("hw.firewire.fwe.tx_speed", &tx_speed);
TUNABLE_INT("hw.firewire.fwe.rx_queue_len", &rx_queue_len);
#ifdef DEVICE_POLLING
static poll_handler_t fwe_poll;
static int
fwe_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
{
struct fwe_softc *fwe;
struct firewire_comm *fc;
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
return (0);
fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe;
fc = fwe->fd.fc;
fc->poll(fc, (cmd == POLL_AND_CHECK_STATUS)?0:1, count);
return (0);
}
#endif /* DEVICE_POLLING */
static void
fwe_identify(driver_t *driver, device_t parent)
{
BUS_ADD_CHILD(parent, 0, "fwe", device_get_unit(parent));
}
static int
fwe_probe(device_t dev)
{
device_t pa;
pa = device_get_parent(dev);
if(device_get_unit(dev) != device_get_unit(pa)){
return(ENXIO);
}
device_set_desc(dev, "Ethernet over FireWire");
return (0);
}
static int
fwe_attach(device_t dev)
{
struct fwe_softc *fwe;
struct ifnet *ifp;
int unit, s;
#if defined(__DragonFly__) || __FreeBSD_version < 500000
u_char *eaddr;
#else
u_char eaddr[6];
#endif
struct fw_eui64 *eui;
fwe = ((struct fwe_softc *)device_get_softc(dev));
unit = device_get_unit(dev);
bzero(fwe, sizeof(struct fwe_softc));
mtx_init(&fwe->mtx, "fwe", NULL, MTX_DEF);
/* XXX */
fwe->stream_ch = stream_ch;
fwe->dma_ch = -1;
fwe->fd.fc = device_get_ivars(dev);
if (tx_speed < 0)
tx_speed = fwe->fd.fc->speed;
fwe->fd.dev = dev;
fwe->fd.post_explore = NULL;
fwe->eth_softc.fwe = fwe;
fwe->pkt_hdr.mode.stream.tcode = FWTCODE_STREAM;
fwe->pkt_hdr.mode.stream.sy = 0;
fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch;
/* generate fake MAC address: first and last 3bytes from eui64 */
#define LOCAL (0x02)
#define GROUP (0x01)
#if defined(__DragonFly__) || __FreeBSD_version < 500000
eaddr = &IFP2ENADDR(fwe->eth_softc.ifp)[0];
#endif
eui = &fwe->fd.fc->eui;
eaddr[0] = (FW_EUI64_BYTE(eui, 0) | LOCAL) & ~GROUP;
eaddr[1] = FW_EUI64_BYTE(eui, 1);
eaddr[2] = FW_EUI64_BYTE(eui, 2);
eaddr[3] = FW_EUI64_BYTE(eui, 5);
eaddr[4] = FW_EUI64_BYTE(eui, 6);
eaddr[5] = FW_EUI64_BYTE(eui, 7);
printf("if_fwe%d: Fake Ethernet address: "
"%02x:%02x:%02x:%02x:%02x:%02x\n", unit,
eaddr[0], eaddr[1], eaddr[2], eaddr[3], eaddr[4], eaddr[5]);
/* fill the rest and attach interface */
ifp = fwe->eth_softc.ifp = if_alloc(IFT_ETHER);
if (ifp == NULL) {
device_printf(dev, "can not if_alloc()\n");
return (ENOSPC);
}
ifp->if_softc = &fwe->eth_softc;
#if __FreeBSD_version >= 501113 || defined(__DragonFly__)
if_initname(ifp, device_get_name(dev), unit);
#else
ifp->if_unit = unit;
ifp->if_name = "fwe";
#endif
ifp->if_init = fwe_init;
#if defined(__DragonFly__) || __FreeBSD_version < 500000
ifp->if_output = ether_output;
#endif
ifp->if_start = fwe_start;
ifp->if_ioctl = fwe_ioctl;
ifp->if_mtu = ETHERMTU;
ifp->if_flags = (IFF_BROADCAST|IFF_SIMPLEX|IFF_MULTICAST);
ifp->if_snd.ifq_maxlen = TX_MAX_QUEUE;
s = splimp();
#if defined(__DragonFly__) || __FreeBSD_version < 500000
ether_ifattach(ifp, 1);
#else
ether_ifattach(ifp, eaddr);
#endif
splx(s);
/* Tell the upper layer(s) we support long frames. */
ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
ifp->if_capabilities |= IFCAP_VLAN_MTU | IFCAP_POLLING;
ifp->if_capenable |= IFCAP_VLAN_MTU;
#endif
FWEDEBUG(ifp, "interface created\n");
return 0;
}
static void
fwe_stop(struct fwe_softc *fwe)
{
struct firewire_comm *fc;
struct fw_xferq *xferq;
struct ifnet *ifp = fwe->eth_softc.ifp;
struct fw_xfer *xfer, *next;
int i;
fc = fwe->fd.fc;
if (fwe->dma_ch >= 0) {
xferq = fc->ir[fwe->dma_ch];
if (xferq->flag & FWXFERQ_RUNNING)
fc->irx_disable(fc, fwe->dma_ch);
xferq->flag &=
~(FWXFERQ_MODEMASK | FWXFERQ_OPEN | FWXFERQ_STREAM |
FWXFERQ_EXTBUF | FWXFERQ_HANDLER | FWXFERQ_CHTAGMASK);
xferq->hand = NULL;
for (i = 0; i < xferq->bnchunk; i ++)
m_freem(xferq->bulkxfer[i].mbuf);
free(xferq->bulkxfer, M_FWE);
for (xfer = STAILQ_FIRST(&fwe->xferlist); xfer != NULL;
xfer = next) {
next = STAILQ_NEXT(xfer, link);
fw_xfer_free(xfer);
}
STAILQ_INIT(&fwe->xferlist);
xferq->bulkxfer = NULL;
fwe->dma_ch = -1;
}
#if defined(__FreeBSD__)
ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
#else
ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
#endif
}
static int
fwe_detach(device_t dev)
{
struct fwe_softc *fwe;
struct ifnet *ifp;
int s;
fwe = device_get_softc(dev);
ifp = fwe->eth_softc.ifp;
#ifdef DEVICE_POLLING
if (ifp->if_capenable & IFCAP_POLLING)
ether_poll_deregister(ifp);
#endif
s = splimp();
fwe_stop(fwe);
#if defined(__DragonFly__) || __FreeBSD_version < 500000
ether_ifdetach(ifp, 1);
#else
ether_ifdetach(ifp);
if_free(ifp);
#endif
splx(s);
mtx_destroy(&fwe->mtx);
return 0;
}
static void
fwe_init(void *arg)
{
struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe;
struct firewire_comm *fc;
struct ifnet *ifp = fwe->eth_softc.ifp;
struct fw_xferq *xferq;
struct fw_xfer *xfer;
struct mbuf *m;
int i;
FWEDEBUG(ifp, "initializing\n");
/* XXX keep promiscoud mode */
ifp->if_flags |= IFF_PROMISC;
fc = fwe->fd.fc;
if (fwe->dma_ch < 0) {
fwe->dma_ch = fw_open_isodma(fc, /* tx */0);
if (fwe->dma_ch < 0)
return;
xferq = fc->ir[fwe->dma_ch];
xferq->flag |= FWXFERQ_EXTBUF |
FWXFERQ_HANDLER | FWXFERQ_STREAM;
fwe->stream_ch = stream_ch;
fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch;
xferq->flag &= ~0xff;
xferq->flag |= fwe->stream_ch & 0xff;
/* register fwe_input handler */
xferq->sc = (caddr_t) fwe;
xferq->hand = fwe_as_input;
xferq->bnchunk = rx_queue_len;
xferq->bnpacket = 1;
xferq->psize = MCLBYTES;
xferq->queued = 0;
xferq->buf = NULL;
xferq->bulkxfer = (struct fw_bulkxfer *) malloc(
sizeof(struct fw_bulkxfer) * xferq->bnchunk,
M_FWE, M_WAITOK);
if (xferq->bulkxfer == NULL) {
printf("if_fwe: malloc failed\n");
return;
}
STAILQ_INIT(&xferq->stvalid);
STAILQ_INIT(&xferq->stfree);
STAILQ_INIT(&xferq->stdma);
xferq->stproc = NULL;
for (i = 0; i < xferq->bnchunk; i ++) {
m = m_getcl(M_WAIT, MT_DATA, M_PKTHDR);
xferq->bulkxfer[i].mbuf = m;
m->m_len = m->m_pkthdr.len = m->m_ext.ext_size;
STAILQ_INSERT_TAIL(&xferq->stfree,
&xferq->bulkxfer[i], link);
}
STAILQ_INIT(&fwe->xferlist);
for (i = 0; i < TX_MAX_QUEUE; i++) {
xfer = fw_xfer_alloc(M_FWE);
if (xfer == NULL)
break;
xfer->send.spd = tx_speed;
xfer->fc = fwe->fd.fc;
xfer->sc = (caddr_t)fwe;
xfer->hand = fwe_output_callback;
STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link);
}
} else
xferq = fc->ir[fwe->dma_ch];
/* start dma */
if ((xferq->flag & FWXFERQ_RUNNING) == 0)
fc->irx_enable(fc, fwe->dma_ch);
#if defined(__FreeBSD__)
ifp->if_drv_flags |= IFF_DRV_RUNNING;
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
#else
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
#endif
#if 0
/* attempt to start output */
fwe_start(ifp);
#endif
}
static int
fwe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe;
struct ifstat *ifs = NULL;
int s, error, len;
switch (cmd) {
case SIOCSIFFLAGS:
s = splimp();
if (ifp->if_flags & IFF_UP) {
#if defined(__FreeBSD__)
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
#else
if (!(ifp->if_flags & IFF_RUNNING))
#endif
fwe_init(&fwe->eth_softc);
} else {
#if defined(__FreeBSD__)
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
#else
if (ifp->if_flags & IFF_RUNNING)
#endif
fwe_stop(fwe);
}
/* XXX keep promiscoud mode */
ifp->if_flags |= IFF_PROMISC;
splx(s);
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
break;
case SIOCGIFSTATUS:
s = splimp();
ifs = (struct ifstat *)data;
len = strlen(ifs->ascii);
if (len < sizeof(ifs->ascii))
snprintf(ifs->ascii + len,
sizeof(ifs->ascii) - len,
"\tch %d dma %d\n",
fwe->stream_ch, fwe->dma_ch);
splx(s);
break;
case SIOCSIFCAP:
#ifdef DEVICE_POLLING
{
struct ifreq *ifr = (struct ifreq *) data;
struct firewire_comm *fc = fwe->fd.fc;
if (ifr->ifr_reqcap & IFCAP_POLLING &&
!(ifp->if_capenable & IFCAP_POLLING)) {
error = ether_poll_register(fwe_poll, ifp);
if (error)
return(error);
/* Disable interrupts */
fc->set_intr(fc, 0);
ifp->if_capenable |= IFCAP_POLLING;
ifp->if_capenable |= IFCAP_POLLING_NOCOUNT;
return (error);
}
if (!(ifr->ifr_reqcap & IFCAP_POLLING) &&
ifp->if_capenable & IFCAP_POLLING) {
error = ether_poll_deregister(ifp);
/* Enable interrupts. */
fc->set_intr(fc, 1);
ifp->if_capenable &= ~IFCAP_POLLING;
ifp->if_capenable &= ~IFCAP_POLLING_NOCOUNT;
return (error);
}
}
#endif /* DEVICE_POLLING */
break;
#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
default:
#else
case SIOCSIFADDR:
case SIOCGIFADDR:
case SIOCSIFMTU:
#endif
s = splimp();
error = ether_ioctl(ifp, cmd, data);
splx(s);
return (error);
#if defined(__DragonFly__) || __FreeBSD_version < 500000
default:
return (EINVAL);
#endif
}
return (0);
}
static void
fwe_output_callback(struct fw_xfer *xfer)
{
struct fwe_softc *fwe;
struct ifnet *ifp;
int s;
fwe = (struct fwe_softc *)xfer->sc;
ifp = fwe->eth_softc.ifp;
/* XXX error check */
FWEDEBUG(ifp, "resp = %d\n", xfer->resp);
if (xfer->resp != 0)
ifp->if_oerrors ++;
m_freem(xfer->mbuf);
fw_xfer_unload(xfer);
s = splimp();
FWE_LOCK(fwe);
STAILQ_INSERT_TAIL(&fwe->xferlist, xfer, link);
FWE_UNLOCK(fwe);
splx(s);
/* for queue full */
if (ifp->if_snd.ifq_head != NULL)
fwe_start(ifp);
}
static void
fwe_start(struct ifnet *ifp)
{
struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe;
int s;
FWEDEBUG(ifp, "starting\n");
if (fwe->dma_ch < 0) {
struct mbuf *m = NULL;
FWEDEBUG(ifp, "not ready\n");
s = splimp();
do {
IF_DEQUEUE(&ifp->if_snd, m);
if (m != NULL)
m_freem(m);
ifp->if_oerrors ++;
} while (m != NULL);
splx(s);
return;
}
s = splimp();
#if defined(__FreeBSD__)
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
#else
ifp->if_flags |= IFF_OACTIVE;
#endif
if (ifp->if_snd.ifq_len != 0)
fwe_as_output(fwe, ifp);
#if defined(__FreeBSD__)
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
#else
ifp->if_flags &= ~IFF_OACTIVE;
#endif
splx(s);
}
#define HDR_LEN 4
#ifndef ETHER_ALIGN
#define ETHER_ALIGN 2
#endif
/* Async. stream output */
static void
fwe_as_output(struct fwe_softc *fwe, struct ifnet *ifp)
{
struct mbuf *m;
struct fw_xfer *xfer;
struct fw_xferq *xferq;
struct fw_pkt *fp;
int i = 0;
xfer = NULL;
xferq = fwe->fd.fc->atq;
while ((xferq->queued < xferq->maxq - 1) &&
(ifp->if_snd.ifq_head != NULL)) {
FWE_LOCK(fwe);
xfer = STAILQ_FIRST(&fwe->xferlist);
if (xfer == NULL) {
#if 0
printf("if_fwe: lack of xfer\n");
#endif
FWE_UNLOCK(fwe);
break;
}
STAILQ_REMOVE_HEAD(&fwe->xferlist, link);
FWE_UNLOCK(fwe);
IF_DEQUEUE(&ifp->if_snd, m);
if (m == NULL) {
FWE_LOCK(fwe);
STAILQ_INSERT_HEAD(&fwe->xferlist, xfer, link);
FWE_UNLOCK(fwe);
break;
}
#if defined(__DragonFly__) || __FreeBSD_version < 500000
if (ifp->if_bpf != NULL)
bpf_mtap(ifp, m);
#else
BPF_MTAP(ifp, m);
#endif
/* keep ip packet alignment for alpha */
M_PREPEND(m, ETHER_ALIGN, M_DONTWAIT);
fp = &xfer->send.hdr;
*(uint32_t *)&xfer->send.hdr = *(int32_t *)&fwe->pkt_hdr;
fp->mode.stream.len = m->m_pkthdr.len;
xfer->mbuf = m;
xfer->send.pay_len = m->m_pkthdr.len;
if (fw_asyreq(fwe->fd.fc, -1, xfer) != 0) {
/* error */
ifp->if_oerrors ++;
/* XXX set error code */
fwe_output_callback(xfer);
} else {
ifp->if_opackets ++;
i++;
}
}
#if 0
if (i > 1)
printf("%d queued\n", i);
#endif
if (i > 0)
xferq->start(fwe->fd.fc);
}
/* Async. stream output */
static void
fwe_as_input(struct fw_xferq *xferq)
{
struct mbuf *m, *m0;
struct ifnet *ifp;
struct fwe_softc *fwe;
struct fw_bulkxfer *sxfer;
struct fw_pkt *fp;
u_char *c;
#if defined(__DragonFly__) || __FreeBSD_version < 500000
struct ether_header *eh;
#endif
fwe = (struct fwe_softc *)xferq->sc;
ifp = fwe->eth_softc.ifp;
/* We do not need a lock here because the bottom half is serialized */
while ((sxfer = STAILQ_FIRST(&xferq->stvalid)) != NULL) {
STAILQ_REMOVE_HEAD(&xferq->stvalid, link);
fp = mtod(sxfer->mbuf, struct fw_pkt *);
if (fwe->fd.fc->irx_post != NULL)
fwe->fd.fc->irx_post(fwe->fd.fc, fp->mode.ld);
m = sxfer->mbuf;
/* insert new rbuf */
sxfer->mbuf = m0 = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR);
if (m0 != NULL) {
m0->m_len = m0->m_pkthdr.len = m0->m_ext.ext_size;
STAILQ_INSERT_TAIL(&xferq->stfree, sxfer, link);
} else
printf("%s: m_getcl failed\n", __FUNCTION__);
if (sxfer->resp != 0 || fp->mode.stream.len <
ETHER_ALIGN + sizeof(struct ether_header)) {
m_freem(m);
ifp->if_ierrors ++;
continue;
}
m->m_data += HDR_LEN + ETHER_ALIGN;
c = mtod(m, u_char *);
#if defined(__DragonFly__) || __FreeBSD_version < 500000
eh = (struct ether_header *)c;
m->m_data += sizeof(struct ether_header);
m->m_len = m->m_pkthdr.len = fp->mode.stream.len - ETHER_ALIGN
- sizeof(struct ether_header);
#else
m->m_len = m->m_pkthdr.len = fp->mode.stream.len - ETHER_ALIGN;
#endif
m->m_pkthdr.rcvif = ifp;
#if 0
FWEDEBUG(ifp, "%02x %02x %02x %02x %02x %02x\n"
"%02x %02x %02x %02x %02x %02x\n"
"%02x %02x %02x %02x\n"
"%02x %02x %02x %02x\n"
"%02x %02x %02x %02x\n"
"%02x %02x %02x %02x\n",
c[0], c[1], c[2], c[3], c[4], c[5],
c[6], c[7], c[8], c[9], c[10], c[11],
c[12], c[13], c[14], c[15],
c[16], c[17], c[18], c[19],
c[20], c[21], c[22], c[23],
c[20], c[21], c[22], c[23]
);
#endif
#if defined(__DragonFly__) || __FreeBSD_version < 500000
ether_input(ifp, eh, m);
#else
(*ifp->if_input)(ifp, m);
#endif
ifp->if_ipackets ++;
}
if (STAILQ_FIRST(&xferq->stfree) != NULL)
fwe->fd.fc->irx_enable(fwe->fd.fc, fwe->dma_ch);
}
static devclass_t fwe_devclass;
static device_method_t fwe_methods[] = {
/* device interface */
DEVMETHOD(device_identify, fwe_identify),
DEVMETHOD(device_probe, fwe_probe),
DEVMETHOD(device_attach, fwe_attach),
DEVMETHOD(device_detach, fwe_detach),
{ 0, 0 }
};
static driver_t fwe_driver = {
"fwe",
fwe_methods,
sizeof(struct fwe_softc),
};
#ifdef __DragonFly__
DECLARE_DUMMY_MODULE(fwe);
#endif
DRIVER_MODULE(fwe, firewire, fwe_driver, fwe_devclass, 0, 0);
MODULE_VERSION(fwe, 1);
MODULE_DEPEND(fwe, firewire, 1, 1, 1);