diff options
| author |   Jose Abreu <Jose.Abreu@synopsys.com> | 2018-06-27 15:03:20 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-06-28 22:24:25 +0900 |
| commit | 4205c88eaf17b5f3ee30032d68df55cd5d9077a1 (patch) | |
| tree | 75a7ae1f806d7e25625405244f43a65dccc86a85 /drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | |
| parent | net/smc: rebuild nonblocking connect (diff) | |
| download | linux-dev-4205c88eaf17b5f3ee30032d68df55cd5d9077a1.tar.xz linux-dev-4205c88eaf17b5f3ee30032d68df55cd5d9077a1.zip | |
net: stmmac: Set DMA buffer size in HW
This is clearly a bug.
We need to set the DMA buffer size in the HW otherwise corruption can
occur when receiving packets.
This is probably not occuring because of small MTU values and because HW
has a default value internally (which currently is bigger than default
buffer size).
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: Vitor Soares <soares@synopsys.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index cba46b62a1cd..60f59abab009 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1804,6 +1804,8 @@ static void stmmac_dma_operation_mode(struct stmmac_priv *priv) stmmac_dma_rx_mode(priv, priv->ioaddr, rxmode, chan, rxfifosz, qmode); + stmmac_set_dma_bfsize(priv, priv->ioaddr, priv->dma_buf_sz, + chan); } for (chan = 0; chan < tx_channels_count; chan++) { |