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);
if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
} while (m != NULL);
splx(s);
return;
}
s = splimp();
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
if (ifp->if_snd.ifq_len != 0)
fwe_as_output(fwe, ifp);
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
splx(s);
}
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_ref(caddr_t buf, u_int size)
{
int *p;
FWEDEBUG("fwe_ref: called\n");
p = (int *)buf;
(*p) ++;
}
static void
fwe_free(caddr_t buf, u_int size)
{
int *p;
FWEDEBUG("fwe_free:\n");
p = (int *)buf;
(*p) --;
if (*p < 1)
free(buf, M_DEVBUF);
}
static void
fwe_init(void *arg)
{
struct fwe_softc *fwe = ((struct fwe_eth_softc *)arg)->fwe;
struct firewire_comm *fc;
struct ifnet *ifp = &fwe->fwe_if;
struct fw_xferq *xferq;
int i;
FWEDEBUG("initializing %s%d\n", ifp->if_name, ifp->if_unit);
/* XXX keep promiscoud mode */
ifp->if_flags |= IFF_PROMISC;
fc = fwe->fd.fc;
#define START 0
if (fwe->dma_ch < 0) {
xferq = NULL;
for (i = START; i < fc->nisodma; i ++) {
xferq = fc->ir[i];
if ((xferq->flag & FWXFERQ_OPEN) == 0)
break;
}
if (xferq == NULL) {
printf("no free dma channel\n");
return;
}
fwe->dma_ch = i;
fwe->stream_ch = stream_ch;
fwe->pkt_hdr.mode.stream.chtag = fwe->stream_ch;
/* allocate DMA channel and init packet mode */
xferq->flag |= FWXFERQ_OPEN | FWXFERQ_PACKET;
xferq->flag |= fwe->stream_ch & 0xff;
/* register fwe_input handler */
xferq->sc = (caddr_t) fwe;
xferq->hand = fwe_as_input;
xferq->flag |= FWXFERQ_HANDLER;
} else
xferq = fc->ir[fwe->dma_ch];
/* start dma */
if ((xferq->flag & FWXFERQ_RUNNING) == 0)
fc->irx_enable(fc, fwe->dma_ch);
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
FWE_POLL_REGISTER(fwe_poll, fwe, ifp);
#if 0
/* attempt to start output */
fwe_start(ifp);
#endif
}
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);
}
static void
fwe_start(struct ifnet *ifp)
{
struct fwe_softc *fwe = ((struct fwe_eth_softc *)ifp->if_softc)->fwe;
int s;
#if 1
FWEDEBUG("%s%d starting\n", ifp->if_name, ifp->if_unit);
if (fwe->dma_ch < 0) {
struct mbuf *m = NULL;
FWEDEBUG("%s%d not ready.\n", ifp->if_name, ifp->if_unit);
s = splimp();
do {
IF_DEQUEUE(&ifp->if_snd, m);
if (m != NULL)
m_freem(m);
ifp->if_oerrors ++;
} while (m != NULL);
splx(s);
return;
}
#endif
s = splimp();
ifp->if_flags |= IFF_OACTIVE;
if (ifp->if_snd.ifq_len != 0)
fwe_as_output(fwe, ifp);
ifp->if_flags &= ~IFF_OACTIVE;
splx(s);
}
static void
fwe_output_callback(struct fw_xfer *xfer)
{
struct fwe_softc *fwe;
struct ifnet *ifp;
fwe = (struct fwe_softc *)xfer->sc;
/* XXX error check */
FWEDEBUG("resp = %d\n", xfer->resp);
m_freem(xfer->mbuf);
xfer->send.buf = NULL;
fw_xfer_free(xfer);
#if 1
/* XXX for queue full */
ifp = &fwe->fwe_if;
if (ifp->if_snd.ifq_head != NULL)
fwe_start(ifp);
#endif
}
/* 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_NOWAIT, 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 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_WAITOK, 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_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_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;
}
/* Async. stream output */
static void
fwe_as_input(struct fw_xferq *xferq)
{
struct mbuf *m;
struct ether_header *eh;
struct ifnet *ifp;
struct fw_xfer *xfer;
struct fwe_softc *fwe;
u_char *c;
int len;
caddr_t p;
fwe = (struct fwe_softc *)xferq->sc;
ifp = &fwe->fwe_if;
#if 0
FWE_POLL_REGISTER(fwe_poll, fwe, ifp);
#endif
while ((xfer = STAILQ_FIRST(&xferq->q)) != NULL) {
STAILQ_REMOVE_HEAD(&xferq->q, link);
xferq->queued --;
MGETHDR(m, M_DONTWAIT, MT_DATA);
if (m == NULL) {
printf("MGETHDR failed\n");
fw_xfer_free(xfer);
return;
}
len = xfer->recv.off + xfer->recv.len;
FWEDEBUG("fwe_as_input len=%d\n", len);
#if __FreeBSD_version >= 500000
MEXTADD(m, xfer->recv.buf, len, fwe_free, NULL, 0, EXT_NET_DRV);
#else
m->m_flags |= M_EXT;
m->m_ext.ext_buf = xfer->recv.buf;
m->m_ext.ext_size = len;
m->m_ext.ext_free = fwe_free;
m->m_ext.ext_ref = fwe_ref;
*((int *)m->m_ext.ext_buf) = 1; /* XXX refcount */
#endif
p = xfer->recv.buf + xfer->recv.off + HDR_LEN + ALIGN_PAD;
eh = (struct ether_header *)p;
#if __FreeBSD_version >= 500000
len -= xfer->recv.off + HDR_LEN + ALIGN_PAD;
#else
p += sizeof(struct ether_header);
len -= xfer->recv.off + HDR_LEN + ALIGN_PAD
+ sizeof(struct ether_header);
#endif
m->m_data = p;
m->m_len = m->m_pkthdr.len = len;
m->m_pkthdr.rcvif = ifp;
c = (char *)eh;
#if 0
FWEDEBUG("%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 __FreeBSD_version >= 500000
(*ifp->if_input)(ifp, m);
#else
ether_input(ifp, eh, m);
#endif
ifp->if_ipackets ++;
xfer->recv.buf = NULL;
fw_xfer_free(xfer);
}
}
static void
fwe_free(void *buf, void *args)
{
FWEDEBUG("fwe_free:\n");
free(buf, M_DEVBUF);
}
static int
fwe_attach(device_t dev)
{
struct fwe_softc *fwe;
struct ifnet *ifp;
int unit, s;
u_char *eaddr;
fwe = ((struct fwe_softc *)device_get_softc(dev));
unit = device_get_unit(dev);
bzero(fwe, sizeof(struct fwe_softc));
/* XXX */
fwe->stream_ch = stream_ch;
fwe->dma_ch = -1;
fwe->fd.fc = device_get_ivars(dev);
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)
eaddr = &fwe->eth_softc.arpcom.ac_enaddr[0];
eaddr[0] = (fwe->fd.fc->eui[0] | LOCAL) & ~GROUP;
eaddr[1] = fwe->fd.fc->eui[1];
eaddr[2] = fwe->fd.fc->eui[2];
eaddr[3] = fwe->fd.fc->eui[5];
eaddr[4] = fwe->fd.fc->eui[6];
eaddr[5] = fwe->fd.fc->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->fwe_if;
ifp->if_softc = &fwe->eth_softc;
ifp->if_unit = unit;
ifp->if_name = "fwe";
ifp->if_init = fwe_init;
ifp->if_output = ether_output;
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 = FWMAXQUEUE - 1;
s = splimp();
#if __FreeBSD_version >= 500000
ether_ifattach(ifp, eaddr);
#else
ether_ifattach(ifp, 1);
#endif
splx(s);
/* Tell the upper layer(s) we support long frames. */
ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header);
#if __FreeBSD_version >= 500000
ifp->if_capabilities |= IFCAP_VLAN_MTU;
#endif
ifp->if_snd.ifq_maxlen = MAX_QUEUED - 1;
FWEDEBUG("interface %s%d created.\n", ifp->if_name, ifp->if_unit);
return 0;
}