/*
* open the VCC
*/
void
patm_rx_vcc_open(struct patm_softc *sc, struct patm_vcc *vcc)
{
uint32_t w1 = IDT_RCT_OPEN;
patm_debug(sc, VCC, "%u.%u RX opening", vcc->vcc.vpi, vcc->vcc.vci);
switch (vcc->vcc.aal) {
case ATMIO_AAL_0:
w1 |= IDT_RCT_AAL0 | IDT_RCT_FBP2 | IDT_RCT_RCI;
break;
case ATMIO_AAL_34:
w1 |= IDT_RCT_AAL34;
break;
case ATMIO_AAL_5:
w1 |= IDT_RCT_AAL5;
break;
case ATMIO_AAL_RAW:
w1 |= IDT_RCT_AALRAW | IDT_RCT_RCI;
break;
}
if (vcc->cid != 0)
patm_sram_write4(sc, sc->mmap->rct + vcc->cid *
IDT_RCT_ENTRY_SIZE, w1, 0, 0, 0xffffffff);
else {
/* switch the interface into promiscuous mode */
patm_nor_write(sc, IDT_NOR_CFG, patm_nor_read(sc, IDT_NOR_CFG) |
IDT_CFG_ICAPT | IDT_CFG_VPECA);
}
vcc->vflags |= PATM_VCC_RX_OPEN;
}
/* close the given vcc for transmission */
void
patm_rx_vcc_close(struct patm_softc *sc, struct patm_vcc *vcc)
{
u_int w1;
patm_debug(sc, VCC, "%u.%u RX closing", vcc->vcc.vpi, vcc->vcc.vci);
if (vcc->cid == 0) {
/* switch off promiscuous mode */
patm_nor_write(sc, IDT_NOR_CFG, patm_nor_read(sc, IDT_NOR_CFG) &
~(IDT_CFG_ICAPT | IDT_CFG_VPECA));
vcc->vflags &= ~PATM_VCC_RX_OPEN;
return;
}
/* close the connection but keep state */
w1 = rct_read(sc, vcc->cid, 0);
w1 &= ~IDT_RCT_OPEN;
rct_write(sc, vcc->cid, 0, w1);
/* minimum idle count */
w1 = (w1 & ~IDT_RCT_IACT_CNT_MASK) | (1 << IDT_RCT_IACT_CNT_SHIFT);
rct_write(sc, vcc->cid, 0, w1);
/* initialize scan */
patm_nor_write(sc, IDT_NOR_IRCP, vcc->cid);
vcc->vflags &= ~PATM_VCC_RX_OPEN;
vcc->vflags |= PATM_VCC_RX_CLOSING;
/*
* check the RSQ
* This is a hack. The problem is, that although an entry is written
* to the RSQ, no interrupt is generated. Also we must wait 1 cell
* time for the SAR to process the scan of our connection.
*/
DELAY(1);
patm_intr_rsq(sc);
}
int
patm_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct ifreq *ifr = (struct ifreq *)data;
struct ifaddr *ifa = (struct ifaddr *)data;
struct patm_softc *sc = ifp->if_softc;
int error = 0;
uint32_t cfg;
struct atmio_vcctable *vtab;
switch (cmd) {
case SIOCSIFADDR:
mtx_lock(&sc->mtx);
ifp->if_flags |= IFF_UP;
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
patm_initialize(sc);
switch (ifa->ifa_addr->sa_family) {
#ifdef INET
case AF_INET:
case AF_INET6:
ifa->ifa_rtrequest = atm_rtrequest;
break;
#endif
default:
break;
}
mtx_unlock(&sc->mtx);
break;
case SIOCSIFFLAGS:
mtx_lock(&sc->mtx);
if (ifp->if_flags & IFF_UP) {
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
patm_initialize(sc);
}
} else {
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
patm_stop(sc);
}
}
mtx_unlock(&sc->mtx);
break;
case SIOCGIFMEDIA:
case SIOCSIFMEDIA:
error = ifmedia_ioctl(ifp, ifr, &sc->media, cmd);
/*
* We need to toggle unassigned/idle cells ourself because
* the 77252 generates null cells for spacing. When switching
* null cells of it gets the timing wrong.
*/
mtx_lock(&sc->mtx);
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
if (sc->utopia.state & UTP_ST_UNASS) {
if (!(sc->flags & PATM_UNASS)) {
cfg = patm_nor_read(sc, IDT_NOR_CFG);
cfg &= ~IDT_CFG_IDLECLP;
patm_nor_write(sc, IDT_NOR_CFG, cfg);
sc->flags |= PATM_UNASS;
}
} else {
if (sc->flags & PATM_UNASS) {
cfg = patm_nor_read(sc, IDT_NOR_CFG);
cfg |= IDT_CFG_IDLECLP;
patm_nor_write(sc, IDT_NOR_CFG, cfg);
sc->flags &= ~PATM_UNASS;
}
}
} else {
if (sc->utopia.state & UTP_ST_UNASS)
sc->flags |= PATM_UNASS;
else
sc->flags &= ~PATM_UNASS;
}
mtx_unlock(&sc->mtx);
break;
case SIOCSIFMTU:
/*
* Set the interface MTU.
*/
if (ifr->ifr_mtu > ATMMTU)
error = EINVAL;
else
ifp->if_mtu = ifr->ifr_mtu;
break;
case SIOCATMOPENVCC: /* kernel internal use */
error = patm_open_vcc(sc, (struct atmio_openvcc *)data);
break;
case SIOCATMCLOSEVCC: /* kernel internal use */
error = patm_close_vcc(sc, (struct atmio_closevcc *)data);
break;
case SIOCATMGVCCS: /* external use */
#ifdef CPU_CHERI
#error Unvalidatable ifr_data use. Unsafe with CheriABI.
#endif
/* return vcc table */
vtab = atm_getvccs((struct atmio_vcc **)sc->vccs,
sc->mmap->max_conn, sc->vccs_open, &sc->mtx, 1);
error = copyout(vtab, ifr->ifr_data, sizeof(*vtab) +
vtab->count * sizeof(vtab->vccs[0]));
free(vtab, M_DEVBUF);
break;
case SIOCATMGETVCCS: /* netgraph internal use */
vtab = atm_getvccs((struct atmio_vcc **)sc->vccs,
sc->mmap->max_conn, sc->vccs_open, &sc->mtx, 0);
if (vtab == NULL) {
error = ENOMEM;
break;
}
*(void **)data = vtab;
break;
default:
patm_debug(sc, IOCTL, "unknown cmd=%08lx arg=%p", cmd, data);
error = EINVAL;
break;
}
return (error);
}
