diff options
Diffstat (limited to 'sys/dev/ae')
| -rw-r--r-- | sys/dev/ae/if_ae.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/sys/dev/ae/if_ae.c b/sys/dev/ae/if_ae.c index 96329fd..3b882ee 100644 --- a/sys/dev/ae/if_ae.c +++ b/sys/dev/ae/if_ae.c @@ -1431,7 +1431,7 @@ ae_tx_avail_size(ae_softc_t *sc) else avail = sc->txd_ack - sc->txd_cur; - return (avail - 4); /* 4-byte header. */ + return (avail); } static int @@ -1448,7 +1448,7 @@ ae_encap(ae_softc_t *sc, struct mbuf **m_head) len = m0->m_pkthdr.len; if ((sc->flags & AE_FLAG_TXAVAIL) == 0 || - ae_tx_avail_size(sc) < len) { + len + sizeof(ae_txd_t) + 3 > ae_tx_avail_size(sc)) { #ifdef AE_DEBUG if_printf(sc->ifp, "No free Tx available.\n"); #endif @@ -1457,11 +1457,10 @@ ae_encap(ae_softc_t *sc, struct mbuf **m_head) hdr = (ae_txd_t *)(sc->txd_base + sc->txd_cur); bzero(hdr, sizeof(*hdr)); - sc->txd_cur = (sc->txd_cur + 4) % AE_TXD_BUFSIZE_DEFAULT; /* Header - size. */ - to_end = AE_TXD_BUFSIZE_DEFAULT - sc->txd_cur; /* Space available to - * the end of the ring - */ + /* Skip header size. */ + sc->txd_cur = (sc->txd_cur + sizeof(ae_txd_t)) % AE_TXD_BUFSIZE_DEFAULT; + /* Space available to the end of the ring */ + to_end = AE_TXD_BUFSIZE_DEFAULT - sc->txd_cur; if (to_end >= len) { m_copydata(m0, 0, len, (caddr_t)(sc->txd_base + sc->txd_cur)); } else { @@ -1840,8 +1839,8 @@ ae_tx_intr(ae_softc_t *sc) /* * Move txd ack and align on 4-byte boundary. */ - sc->txd_ack = ((sc->txd_ack + le16toh(txd->len) + 4 + 3) & ~3) % - AE_TXD_BUFSIZE_DEFAULT; + sc->txd_ack = ((sc->txd_ack + le16toh(txd->len) + + sizeof(ae_txs_t) + 3) & ~3) % AE_TXD_BUFSIZE_DEFAULT; if ((flags & AE_TXS_SUCCESS) != 0) ifp->if_opackets++; |
