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Code Issues Releases Activity

Remember the bus_dmamap_t where we loaded the mbuf, and sync this map instead

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of tx_buffer->map, or we could end up syncing the wrong map.
This commit is contained in:
Olivier Houchard 2005-11-24 15:13:47 +00:00
parent e30534d50b
commit 5498dbb282
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=152774
1 changed files with 3 additions and 1 deletions
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4
sys/dev/em/if_em.c
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@ -1219,6 +1219,7 @@ em_encap(struct adapter *adapter, struct mbuf **m_headp)
u_int32_t txd_upper;
u_int32_t txd_lower, txd_used = 0, txd_saved = 0;
int i, j, error = 0;
bus_dmamap_t map;
struct mbuf *m_head;
@ -1253,6 +1254,7 @@ em_encap(struct adapter *adapter, struct mbuf **m_headp)
tx_buffer = &adapter->tx_buffer_area[adapter->next_avail_tx_desc];
error = bus_dmamap_load_mbuf_sg(adapter->txtag, tx_buffer->map, m_head,
segs, &nsegs, BUS_DMA_NOWAIT);
map = tx_buffer->map;
if (error != 0) {
adapter->no_tx_dma_setup++;
return (error);
@ -1383,7 +1385,7 @@ em_encap(struct adapter *adapter, struct mbuf **m_headp)
}
tx_buffer->m_head = m_head;
bus_dmamap_sync(adapter->txtag, tx_buffer->map, BUS_DMASYNC_PREWRITE);
bus_dmamap_sync(adapter->txtag, map, BUS_DMASYNC_PREWRITE);
/*
* Last Descriptor of Packet needs End Of Packet (EOP)