/*
* Update the carrier status
*/
void
utopia_check_carrier(struct utopia *utp, u_int carr_ok)
{
int old;
old = utp->carrier;
if (carr_ok) {
/* carrier */
utp->carrier = UTP_CARR_OK;
if (old != UTP_CARR_OK) {
if_printf(utp->ifatm->ifp, "carrier detected\n");
ATMEV_SEND_IFSTATE_CHANGED(utp->ifatm, 1);
}
} else {
/* no carrier */
utp->carrier = UTP_CARR_LOST;
if (old == UTP_CARR_OK) {
if_printf(utp->ifatm->ifp, "carrier lost\n");
ATMEV_SEND_IFSTATE_CHANGED(utp->ifatm, 0);
}
}
}
/*
* Start the card. This assumes the mutex to be held
*/
void
patm_initialize(struct patm_softc *sc)
{
uint32_t cfg;
u_int i;
patm_debug(sc, ATTACH, "configuring...");
/* clear SRAM */
for (i = 0; i < sc->mmap->sram * 1024; i += 4)
patm_sram_write4(sc, i, 0, 0, 0, 0);
patm_scd_init(sc);
/* configuration register. Setting NOIDLE makes the timing wrong! */
cfg = IDT_CFG_TXFIFO9 | IDT_CFG_RXQ512 | PATM_CFG_VPI |
/* IDT_CFG_NOIDLE | */ sc->mmap->rxtab;
if (!(sc->flags & PATM_UNASS))
cfg |= IDT_CFG_IDLECLP;
patm_nor_write(sc, IDT_NOR_CFG, cfg);
/* clean all the status queues and the Raw handle */
memset(sc->tsq, 0, sc->sq_size);
/* initialize RSQ */
patm_debug(sc, ATTACH, "RSQ %llx", (unsigned long long)sc->rsq_phy);
patm_nor_write(sc, IDT_NOR_RSQB, sc->rsq_phy);
patm_nor_write(sc, IDT_NOR_RSQT, sc->rsq_phy);
patm_nor_write(sc, IDT_NOR_RSQH, 0);
sc->rsq_last = PATM_RSQ_SIZE - 1;
/* initialize TSTB */
patm_nor_write(sc, IDT_NOR_TSTB, sc->mmap->tst1base << 2);
patm_tst_init(sc);
/* initialize TSQ */
for (i = 0; i < IDT_TSQ_SIZE; i++)
sc->tsq[i].stamp = htole32(IDT_TSQE_EMPTY);
patm_nor_write(sc, IDT_NOR_TSQB, sc->tsq_phy);
patm_nor_write(sc, IDT_NOR_TSQH, 0);
patm_nor_write(sc, IDT_NOR_TSQT, 0);
sc->tsq_next = sc->tsq;
/* GP */
#if BYTE_ORDER == BIG_ENDIAN && 0
patm_nor_write(sc, IDT_NOR_GP, IDT_GP_BIGE);
#else
patm_nor_write(sc, IDT_NOR_GP, 0);
#endif
/* VPM */
patm_nor_write(sc, IDT_NOR_VPM, 0);
/* RxFIFO */
patm_nor_write(sc, IDT_NOR_RXFD,
IDT_RXFD(sc->mmap->rxfifo_addr, sc->mmap->rxfifo_code));
patm_nor_write(sc, IDT_NOR_RXFT, 0);
patm_nor_write(sc, IDT_NOR_RXFH, 0);
/* RAWHND */
patm_debug(sc, ATTACH, "RWH %llx",
(unsigned long long)sc->rawhnd_phy);
patm_nor_write(sc, IDT_NOR_RAWHND, sc->rawhnd_phy);
/* ABRSTD */
patm_nor_write(sc, IDT_NOR_ABRSTD,
IDT_ABRSTD(sc->mmap->abrstd_addr, sc->mmap->abrstd_code));
for (i = 0; i < sc->mmap->abrstd_size; i++)
patm_sram_write(sc, sc->mmap->abrstd_addr + i, 0);
patm_nor_write(sc, IDT_NOR_ABRRQ, 0);
patm_nor_write(sc, IDT_NOR_VBRRQ, 0);
/* rate tables */
if (sc->flags & PATM_25M) {
for (i = 0; i < patm_rtables_size; i++)
patm_sram_write(sc, sc->mmap->rtables + i,
patm_rtables25[i]);
} else {
for (i = 0; i < patm_rtables_size; i++)
patm_sram_write(sc, sc->mmap->rtables + i,
patm_rtables155[i]);
}
patm_nor_write(sc, IDT_NOR_RTBL, sc->mmap->rtables << 2);
/* Maximum deficit */
patm_nor_write(sc, IDT_NOR_MXDFCT, 32 | IDT_MDFCT_LCI | IDT_MDFCT_LNI);
/* Free buffer queues */
patm_nor_write(sc, IDT_NOR_FBQP0, 0);
patm_nor_write(sc, IDT_NOR_FBQP1, 0);
patm_nor_write(sc, IDT_NOR_FBQP2, 0);
patm_nor_write(sc, IDT_NOR_FBQP3, 0);
patm_nor_write(sc, IDT_NOR_FBQWP0, 0);
patm_nor_write(sc, IDT_NOR_FBQWP1, 0);
patm_nor_write(sc, IDT_NOR_FBQWP2, 0);
patm_nor_write(sc, IDT_NOR_FBQWP3, 0);
patm_nor_write(sc, IDT_NOR_FBQS0,
(SMBUF_THRESHOLD << 28) |
(SMBUF_NI_THRESH << 24) |
(SMBUF_CI_THRESH << 20) |
SMBUF_CELLS);
patm_nor_write(sc, IDT_NOR_FBQS1,
(LMBUF_THRESHOLD << 28) |
(LMBUF_NI_THRESH << 24) |
(LMBUF_CI_THRESH << 20) |
LMBUF_CELLS);
patm_nor_write(sc, IDT_NOR_FBQS2,
(VMBUF_THRESHOLD << 28) | VMBUF_CELLS);
patm_nor_write(sc, IDT_NOR_FBQS3, 0);
/* make SCD0 for UBR0 */
if ((sc->scd0 = patm_scd_alloc(sc)) == NULL) {
patm_printf(sc, "cannot create UBR0 SCD\n");
patm_reset(sc);
return;
}
sc->scd0->q.ifq_maxlen = PATM_DLFT_MAXQ;
patm_scd_setup(sc, sc->scd0);
patm_tct_setup(sc, sc->scd0, NULL);
patm_debug(sc, ATTACH, "go...");
sc->utopia.flags &= ~UTP_FL_POLL_CARRIER;
sc->ifp->if_drv_flags |= IFF_DRV_RUNNING;
/* enable interrupts, Tx and Rx paths */
cfg |= IDT_CFG_RXPTH | IDT_CFG_RXIIMM | IDT_CFG_RAWIE | IDT_CFG_RQFIE |
IDT_CFG_TIMOIE | IDT_CFG_FBIE | IDT_CFG_TXENB | IDT_CFG_TXINT |
IDT_CFG_TXUIE | IDT_CFG_TXSFI | IDT_CFG_PHYIE;
patm_nor_write(sc, IDT_NOR_CFG, cfg);
for (i = 0; i < sc->mmap->max_conn; i++)
if (sc->vccs[i] != NULL)
patm_load_vc(sc, sc->vccs[i], 1);
ATMEV_SEND_IFSTATE_CHANGED(IFP2IFATM(sc->ifp),
sc->utopia.carrier == UTP_CARR_OK);
}
/*
* Stop the interface
*/
void
patm_stop(struct patm_softc *sc)
{
u_int i;
struct mbuf *m;
struct patm_txmap *map;
struct patm_scd *scd;
sc->ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
sc->utopia.flags |= UTP_FL_POLL_CARRIER;
patm_reset(sc);
mtx_lock(&sc->tst_lock);
i = sc->tst_state;
sc->tst_state = 0;
callout_stop(&sc->tst_callout);
mtx_unlock(&sc->tst_lock);
if (i != 0) {
/* this means we are just entering or leaving the timeout.
* wait a little bit. Doing this correctly would be more
* involved */
DELAY(1000);
}
/*
* Give any waiters on closing a VCC a chance. They will stop
* to wait if they see that IFF_DRV_RUNNING disappeared.
*/
cv_broadcast(&sc->vcc_cv);
/* free large buffers */
patm_debug(sc, ATTACH, "freeing large buffers...");
for (i = 0; i < sc->lbuf_max; i++)
if (sc->lbufs[i].m != NULL)
patm_lbuf_free(sc, &sc->lbufs[i]);
/* free small buffers that are on the card */
patm_debug(sc, ATTACH, "freeing small buffers...");
mbp_card_free(sc->sbuf_pool);
/* free aal0 buffers that are on the card */
patm_debug(sc, ATTACH, "freeing aal0 buffers...");
mbp_card_free(sc->vbuf_pool);
/* freeing partial receive chains and reset vcc state */
for (i = 0; i < sc->mmap->max_conn; i++) {
if (sc->vccs[i] != NULL) {
if (sc->vccs[i]->chain != NULL) {
m_freem(sc->vccs[i]->chain);
sc->vccs[i]->chain = NULL;
sc->vccs[i]->last = NULL;
}
if (sc->vccs[i]->vflags & (PATM_VCC_RX_CLOSING |
PATM_VCC_TX_CLOSING)) {
uma_zfree(sc->vcc_zone, sc->vccs[i]);
sc->vccs[i] = NULL;
} else {
/* keep */
sc->vccs[i]->vflags &= ~PATM_VCC_OPEN;
sc->vccs[i]->cps = 0;
sc->vccs[i]->scd = NULL;
}
}
}
/* stop all active SCDs */
while ((scd = LIST_FIRST(&sc->scd_list)) != NULL) {
/* free queue packets */
for (;;) {
_IF_DEQUEUE(&scd->q, m);
if (m == NULL)
break;
m_freem(m);
}
/* free transmitting packets */
for (i = 0; i < IDT_TSQE_TAG_SPACE; i++) {
if ((m = scd->on_card[i]) != NULL) {
scd->on_card[i] = 0;
map = m->m_pkthdr.header;
bus_dmamap_unload(sc->tx_tag, map->map);
SLIST_INSERT_HEAD(&sc->tx_maps_free, map, link);
m_freem(m);
}
}
patm_scd_free(sc, scd);
}
sc->scd0 = NULL;
sc->flags &= ~PATM_CLR;
/* reset raw cell queue */
sc->rawh = NULL;
ATMEV_SEND_IFSTATE_CHANGED(IFP2IFATM(sc->ifp),
sc->utopia.carrier == UTP_CARR_OK);
}
