ASSERT_SERIALIZED(ifp->if_serializer);
- DBRUNIF(1, sc->rx_interrupts++);
-
/* Get the hardware's view of the RX consumer index. */
hw_cons = sc->hw_rx_cons = bce_get_hw_rx_cons(sc);
sw_prod = sc->rx_prod;
sw_prod_bseq = sc->rx_prod_bseq;
- DBPRINT(sc, BCE_INFO_RECV, "%s(enter): sw_prod = 0x%04X, "
- "sw_cons = 0x%04X, sw_prod_bseq = 0x%08X\n",
- __func__, sw_prod, sw_cons, sw_prod_bseq);
-
/* Prevent speculative reads from getting ahead of the status block. */
bus_space_barrier(sc->bce_btag, sc->bce_bhandle, 0, 0,
BUS_SPACE_BARRIER_READ);
- /* Update some debug statistics counters */
- DBRUNIF((sc->free_rx_bd < sc->rx_low_watermark),
- sc->rx_low_watermark = sc->free_rx_bd);
- DBRUNIF((sc->free_rx_bd == 0), sc->rx_empty_count++);
-
/* Scan through the receive chain as long as there is work to do. */
while (sw_cons != hw_cons) {
struct mbuf *m = NULL;
[RX_IDX(sw_chain_cons)];
sc->free_rx_bd++;
- DBRUN(BCE_VERBOSE_RECV,
- if_printf(ifp, "%s(): ", __func__);
- bce_dump_rxbd(sc, sw_chain_cons, rxbd));
-
/* The mbuf is stored with the last rx_bd entry of a packet. */
if (sc->rx_mbuf_ptr[sw_chain_cons] != NULL) {
- /* Validate that this is the last rx_bd. */
- DBRUNIF((!(rxbd->rx_bd_flags & RX_BD_FLAGS_END)),
- if_printf(ifp, "%s(%d): "
- "Unexpected mbuf found in rx_bd[0x%04X]!\n",
- __FILE__, __LINE__, sw_chain_cons);
- bce_breakpoint(sc));
-
if (sw_chain_cons != sw_chain_prod) {
if_printf(ifp, "RX cons(%d) != prod(%d), "
"drop!\n", sw_chain_cons,
len = l2fhdr->l2_fhdr_pkt_len;
status = l2fhdr->l2_fhdr_status;
- DBRUNIF(DB_RANDOMTRUE(bce_debug_l2fhdr_status_check),
- if_printf(ifp,
- "Simulating l2_fhdr status error.\n");
- status = status | L2_FHDR_ERRORS_PHY_DECODE);
-
- /* Watch for unusual sized frames. */
- DBRUNIF((len < BCE_MIN_MTU ||
- len > BCE_MAX_JUMBO_ETHER_MTU_VLAN),
- if_printf(ifp,
- "%s(%d): Unusual frame size found. "
- "Min(%d), Actual(%d), Max(%d)\n",
- __FILE__, __LINE__,
- (int)BCE_MIN_MTU, len,
- (int)BCE_MAX_JUMBO_ETHER_MTU_VLAN);
- bce_dump_mbuf(sc, m);
- bce_breakpoint(sc));
-
len -= ETHER_CRC_LEN;
/* Check the received frame for errors. */
L2_FHDR_ERRORS_TOO_SHORT |
L2_FHDR_ERRORS_GIANT_FRAME)) {
ifp->if_ierrors++;
- DBRUNIF(1, sc->l2fhdr_status_errors++);
/* Reuse the mbuf for a new frame. */
bce_setup_rxdesc_std(sc, sw_chain_prod,
*/
if (bce_newbuf_std(sc, &sw_prod, &sw_chain_prod,
&sw_prod_bseq, 0)) {
- DBRUN(BCE_WARN,
- if_printf(ifp,
- "%s(%d): Failed to allocate new mbuf, "
- "incoming frame dropped!\n",
- __FILE__, __LINE__));
-
ifp->if_ierrors++;
/* Try and reuse the exisitng mbuf. */
m->m_pkthdr.len = m->m_len = len;
m->m_pkthdr.rcvif = ifp;
- DBRUN(BCE_VERBOSE_RECV,
- struct ether_header *eh;
- eh = mtod(m, struct ether_header *);
- if_printf(ifp, "%s(): to: %6D, from: %6D, "
- "type: 0x%04X\n", __func__,
- eh->ether_dhost, ":",
- eh->ether_shost, ":",
- htons(eh->ether_type)));
-
/* Validate the checksum if offload enabled. */
if (ifp->if_capenable & IFCAP_RXCSUM) {
/* Check for an IP datagram. */
0xffff) == 0) {
m->m_pkthdr.csum_flags |=
CSUM_IP_VALID;
- } else {
- DBPRINT(sc, BCE_WARN_RECV,
- "%s(): Invalid IP checksum = 0x%04X!\n",
- __func__, l2fhdr->l2_fhdr_ip_xsum);
}
}
m->m_pkthdr.csum_flags |=
CSUM_DATA_VALID |
CSUM_PSEUDO_HDR;
- } else {
- DBPRINT(sc, BCE_WARN_RECV,
- "%s(): Invalid TCP/UDP checksum = 0x%04X!\n",
- __func__, l2fhdr->l2_fhdr_tcp_udp_xsum);
}
}
}
/* If we have a packet, pass it up the stack */
if (m) {
- DBPRINT(sc, BCE_VERBOSE_RECV,
- "%s(): Passing received frame up.\n", __func__);
-
if (status & L2_FHDR_STATUS_L2_VLAN_TAG) {
m->m_flags |= M_VLANTAG;
m->m_pkthdr.ether_vlantag =
l2fhdr->l2_fhdr_vlan_tag;
}
ifp->if_input(ifp, m);
-
- DBRUNIF(1, sc->rx_mbuf_alloc--);
}
/*
sc->rx_prod);
REG_WR(sc, MB_GET_CID_ADDR(RX_CID) + BCE_L2MQ_RX_HOST_BSEQ,
sc->rx_prod_bseq);
-
- DBPRINT(sc, BCE_INFO_RECV, "%s(exit): rx_prod = 0x%04X, "
- "rx_cons = 0x%04X, rx_prod_bseq = 0x%08X\n",
- __func__, sc->rx_prod, sc->rx_cons, sc->rx_prod_bseq);
}
ASSERT_SERIALIZED(ifp->if_serializer);
- DBRUNIF(1, sc->tx_interrupts++);
-
/* Get the hardware's view of the TX consumer index. */
hw_tx_cons = sc->hw_tx_cons = bce_get_hw_tx_cons(sc);
sw_tx_cons = sc->tx_cons;
/* Cycle through any completed TX chain page entries. */
while (sw_tx_cons != hw_tx_cons) {
-#ifdef BCE_DEBUG
- struct tx_bd *txbd = NULL;
-#endif
sw_tx_chain_cons = TX_CHAIN_IDX(sc, sw_tx_cons);
- DBPRINT(sc, BCE_INFO_SEND,
- "%s(): hw_tx_cons = 0x%04X, sw_tx_cons = 0x%04X, "
- "sw_tx_chain_cons = 0x%04X\n",
- __func__, hw_tx_cons, sw_tx_cons, sw_tx_chain_cons);
-
- DBRUNIF((sw_tx_chain_cons > MAX_TX_BD(sc)),
- if_printf(ifp, "%s(%d): "
- "TX chain consumer out of range! "
- " 0x%04X > 0x%04X\n",
- __FILE__, __LINE__, sw_tx_chain_cons,
- (int)MAX_TX_BD(sc));
- bce_breakpoint(sc));
-
- DBRUNIF(1, txbd = &sc->tx_bd_chain[TX_PAGE(sw_tx_chain_cons)]
- [TX_IDX(sw_tx_chain_cons)]);
-
- DBRUNIF((txbd == NULL),
- if_printf(ifp, "%s(%d): "
- "Unexpected NULL tx_bd[0x%04X]!\n",
- __FILE__, __LINE__, sw_tx_chain_cons);
- bce_breakpoint(sc));
-
- DBRUN(BCE_INFO_SEND,
- if_printf(ifp, "%s(): ", __func__);
- bce_dump_txbd(sc, sw_tx_chain_cons, txbd));
-
/*
* Free the associated mbuf. Remember
* that only the last tx_bd of a packet
* has an mbuf pointer and DMA map.
*/
if (sc->tx_mbuf_ptr[sw_tx_chain_cons] != NULL) {
- /* Validate that this is the last tx_bd. */
- DBRUNIF((!(txbd->tx_bd_flags & TX_BD_FLAGS_END)),
- if_printf(ifp, "%s(%d): "
- "tx_bd END flag not set but "
- "txmbuf == NULL!\n", __FILE__, __LINE__);
- bce_breakpoint(sc));
-
- DBRUN(BCE_INFO_SEND,
- if_printf(ifp, "%s(): Unloading map/freeing mbuf "
- "from tx_bd[0x%04X]\n", __func__,
- sw_tx_chain_cons));
-
/* Unmap the mbuf. */
bus_dmamap_unload(sc->tx_mbuf_tag,
sc->tx_mbuf_map[sw_tx_chain_cons]);
/* Free the mbuf. */
m_freem(sc->tx_mbuf_ptr[sw_tx_chain_cons]);
sc->tx_mbuf_ptr[sw_tx_chain_cons] = NULL;
- DBRUNIF(1, sc->tx_mbuf_alloc--);
ifp->if_opackets++;
}
}
/* Clear the tx hardware queue full flag. */
- if (sc->max_tx_bd - sc->used_tx_bd >= BCE_TX_SPARE_SPACE) {
- DBRUNIF((ifp->if_flags & IFF_OACTIVE),
- DBPRINT(sc, BCE_WARN_SEND,
- "%s(): Open TX chain! %d/%d (used/total)\n",
- __func__, sc->used_tx_bd, sc->max_tx_bd));
+ if (sc->max_tx_bd - sc->used_tx_bd >= BCE_TX_SPARE_SPACE)
ifp->if_flags &= ~IFF_OACTIVE;
- }
sc->tx_cons = sw_tx_cons;
}
projects / dragonfly.git / commitdiff