void
smsc_init(void *xsc)
{
struct smsc_softc *sc = xsc;
struct ifnet *ifp = &sc->sc_ac.ac_if;
struct smsc_chain *c;
usbd_status err;
int s, i;
s = splnet();
/* Cancel pending I/O */
smsc_stop(sc);
/* Reset the ethernet interface. */
smsc_reset(sc);
/* Init RX ring. */
if (smsc_rx_list_init(sc) == ENOBUFS) {
printf("%s: rx list init failed\n", sc->sc_dev.dv_xname);
splx(s);
return;
}
/* Init TX ring. */
if (smsc_tx_list_init(sc) == ENOBUFS) {
printf("%s: tx list init failed\n", sc->sc_dev.dv_xname);
splx(s);
return;
}
/* Program promiscuous mode and multicast filters. */
smsc_iff(sc);
/* Open RX and TX pipes. */
err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[SMSC_ENDPT_RX],
USBD_EXCLUSIVE_USE, &sc->sc_ep[SMSC_ENDPT_RX]);
if (err) {
printf("%s: open rx pipe failed: %s\n",
sc->sc_dev.dv_xname, usbd_errstr(err));
splx(s);
return;
}
err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[SMSC_ENDPT_TX],
USBD_EXCLUSIVE_USE, &sc->sc_ep[SMSC_ENDPT_TX]);
if (err) {
printf("%s: open tx pipe failed: %s\n",
sc->sc_dev.dv_xname, usbd_errstr(err));
splx(s);
return;
}
/* Start up the receive pipe. */
for (i = 0; i < SMSC_RX_LIST_CNT; i++) {
c = &sc->sc_cdata.rx_chain[i];
usbd_setup_xfer(c->sc_xfer, sc->sc_ep[SMSC_ENDPT_RX],
c, c->sc_buf, sc->sc_bufsz,
USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, smsc_rxeof);
usbd_transfer(c->sc_xfer);
}
/* TCP/UDP checksum offload engines. */
smsc_sethwcsum(sc);
/* Indicate we are up and running. */
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
timeout_add_sec(&sc->sc_stat_ch, 1);
splx(s);
}
int
smsc_init(struct ifnet *ifp)
{
struct smsc_softc *sc = ifp->if_softc;
struct smsc_chain *c;
usbd_status err;
int s, i;
if (sc->sc_dying)
return EIO;
s = splnet();
/* Cancel pending I/O */
if (ifp->if_flags & IFF_RUNNING)
smsc_stop(ifp, 1);
/* Reset the ethernet interface. */
smsc_reset(sc);
/* Init RX ring. */
if (smsc_rx_list_init(sc) == ENOBUFS) {
aprint_error_dev(sc->sc_dev, "rx list init failed\n");
splx(s);
return EIO;
}
/* Init TX ring. */
if (smsc_tx_list_init(sc) == ENOBUFS) {
aprint_error_dev(sc->sc_dev, "tx list init failed\n");
splx(s);
return EIO;
}
/* Load the multicast filter. */
smsc_setmulti(sc);
/* TCP/UDP checksum offload engines. */
smsc_sethwcsum(sc);
/* Open RX and TX pipes. */
err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[SMSC_ENDPT_RX],
USBD_EXCLUSIVE_USE, &sc->sc_ep[SMSC_ENDPT_RX]);
if (err) {
printf("%s: open rx pipe failed: %s\n",
device_xname(sc->sc_dev), usbd_errstr(err));
splx(s);
return EIO;
}
err = usbd_open_pipe(sc->sc_iface, sc->sc_ed[SMSC_ENDPT_TX],
USBD_EXCLUSIVE_USE, &sc->sc_ep[SMSC_ENDPT_TX]);
if (err) {
printf("%s: open tx pipe failed: %s\n",
device_xname(sc->sc_dev), usbd_errstr(err));
splx(s);
return EIO;
}
/* Start up the receive pipe. */
for (i = 0; i < SMSC_RX_LIST_CNT; i++) {
c = &sc->sc_cdata.rx_chain[i];
usbd_setup_xfer(c->sc_xfer, sc->sc_ep[SMSC_ENDPT_RX],
c, c->sc_buf, sc->sc_bufsz,
USBD_SHORT_XFER_OK | USBD_NO_COPY,
USBD_NO_TIMEOUT, smsc_rxeof);
usbd_transfer(c->sc_xfer);
}
/* Indicate we are up and running. */
ifp->if_flags |= IFF_RUNNING;
ifp->if_flags &= ~IFF_OACTIVE;
splx(s);
callout_reset(&sc->sc_stat_ch, hz, smsc_tick, sc);
return 0;
}