diff options
Diffstat (limited to 'c/src/lib/libbsp/m68k/gen68360/network/network.c')
| -rw-r--r-- | c/src/lib/libbsp/m68k/gen68360/network/network.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/m68k/gen68360/network/network.c b/c/src/lib/libbsp/m68k/gen68360/network/network.c index db0340cc58..7dc4f4a73f 100644 --- a/c/src/lib/libbsp/m68k/gen68360/network/network.c +++ b/c/src/lib/libbsp/m68k/gen68360/network/network.c @@ -364,6 +364,8 @@ m360Enet_retire_tx_bd (struct scc_softc *sc) if (status & (M360_BD_LATE_COLLISION | M360_BD_RETRY_LIMIT | M360_BD_UNDERRUN)) { + int j; + if (status & M360_BD_LATE_COLLISION) scc_softc[0].txLateCollision++; if (status & M360_BD_RETRY_LIMIT) @@ -372,9 +374,37 @@ m360Enet_retire_tx_bd (struct scc_softc *sc) scc_softc[0].txUnderrun++; /* + * Reenable buffer descriptors + */ + j = sc->txBdTail; + for (;;) { + status = (sc->txBdBase + j)->status; + if (status & M360_BD_READY) + break; + (sc->txBdBase + j)->status = M360_BD_READY | + (status & (M360_BD_PAD | + M360_BD_WRAP | + M360_BD_INTERRUPT | + M360_BD_LAST | + M360_BD_TX_CRC)); + if (status & M360_BD_LAST) + break; + if (++j == sc->txBdCount) + j = 0; + } + + /* + * Move transmitter back to the first + * buffer descriptor in the frame. + */ + m360.scc1p._tbptr = m360.scc1p.tbase + + sc->txBdTail * sizeof (m360BufferDescriptor_t); + + /* * Restart the transmitter */ M360ExecuteRISC (M360_CR_OP_RESTART_TX | M360_CR_CHAN_SCC1); + continue; } if (status & M360_BD_DEFER) scc_softc[0].txDeferred++; |