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When a transmit is complete, sync (and unload!!) the DMA map used

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for the packet.  When setting up a packet for transmit, sync the
DMA map being used.
This commit is contained in:
thorpej 2001-06-30 05:48:24 +00:00
parent 17238bfd2b
commit 6237e487ab
1 changed files with 15 additions and 5 deletions
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20
sys/dev/pci/if_ti.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_ti.c,v 1.28 2001/06/30 04:33:11 thorpej Exp $ */
/* $NetBSD: if_ti.c,v 1.29 2001/06/30 05:48:24 thorpej Exp $ */
/*
* Copyright (c) 1997, 1998, 1999
@ -2084,6 +2084,7 @@ static void ti_txeof(sc)
{
struct ti_tx_desc *cur_tx = NULL;
struct ifnet *ifp;
struct txdmamap_pool_entry *dma;
ifp = &sc->ethercom.ec_if;
@ -2117,10 +2118,14 @@ static void ti_txeof(sc)
m_freem(sc->ti_cdata.ti_tx_chain[idx]);
sc->ti_cdata.ti_tx_chain[idx] = NULL;
/* if (sc->txdma[idx] == 0) panic() */
SIMPLEQ_INSERT_HEAD(&sc->txdma_list, sc->txdma[idx],
link);
sc->txdma[idx] = 0;
dma = sc->txdma[idx];
KDASSERT(dma != NULL);
bus_dmamap_sync(sc->sc_dmat, dma->dmamap, 0,
dma->dmamap->dm_mapsize, BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(sc->sc_dmat, dma->dmamap);
SIMPLEQ_INSERT_HEAD(&sc->txdma_list, dma, link);
sc->txdma[idx] = NULL;
}
sc->ti_txcnt--;
TI_INC(sc->ti_tx_saved_considx, TI_TX_RING_CNT);
@ -2290,6 +2295,11 @@ static int ti_encap(sc, m_head, txidx)
TI_BDFLAG_END;
else
sc->ti_rdata->ti_tx_ring[cur].ti_flags |= TI_BDFLAG_END;
/* Sync the packet's DMA map. */
bus_dmamap_sync(sc->sc_dmat, dmamap, 0, dmamap->dm_mapsize,
BUS_DMASYNC_PREWRITE);
sc->ti_cdata.ti_tx_chain[cur] = m_head;
SIMPLEQ_REMOVE_HEAD(&sc->txdma_list, dma, link);
sc->txdma[cur] = dma;