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rtwn_pci: fix excessive packet loss on Tx with RTL8188EE.

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Use proper flags for bus_dmamap_sync() in Tx path.

Tested with:	RTL8188EE, STA mode

MFC after:	4 days
This commit is contained in:
Andriy Voskoboinyk 2019-01-01 23:41:16 +00:00
parent 45a18a1fe3
commit 387c3f1495
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=342672
1 changed files with 2 additions and 2 deletions
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4
sys/dev/rtwn/pci/rtwn_pci_tx.c
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@ -174,8 +174,8 @@ rtwn_pci_tx_start_frame(struct rtwn_softc *sc, struct ieee80211_node *ni,
rtwn_dump_tx_desc(sc, txd);
bus_dmamap_sync(ring->desc_dmat, ring->desc_map,
BUS_DMASYNC_POSTWRITE);
bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_POSTWRITE);
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
bus_dmamap_sync(ring->data_dmat, data->map, BUS_DMASYNC_PREWRITE);
data->m = m;
data->ni = ni;