net: stmmac: Set DMA buffer size in HW
authorJose Abreu <Jose.Abreu@synopsys.com>
Wed, 27 Jun 2018 14:03:20 +0000 (15:03 +0100)
committerDavid S. Miller <davem@davemloft.net>
Thu, 28 Jun 2018 13:24:25 +0000 (22:24 +0900)
commit4205c88eaf17b5f3ee30032d68df55cd5d9077a1
tree75a7ae1f806d7e25625405244f43a65dccc86a85
parent24ac3a08e65845a098140ff270229dec4a897404
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>
drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.c
drivers/net/ethernet/stmicro/stmmac/dwmac4_dma.h
drivers/net/ethernet/stmicro/stmmac/hwif.h
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c