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tsnep: Prepare RX buffer for XDP support
authorGerhard Engleder <gerhard@engleder-embedded.com>
Mon, 16 Jan 2023 20:24:55 +0000 (21:24 +0100)
committerDavid S. Miller <davem@davemloft.net>
Wed, 18 Jan 2023 13:17:06 +0000 (13:17 +0000)
commitcc3e254f9443cdb5f41c5e59f7275fe2943fb160
treedb7c0541a03cb53725da4ff50631b5af49f28factree
parent59d562aa1983ab0d4c3d2a03edccb3b9829bb595commit | diff
tsnep: Prepare RX buffer for XDP support

Always reserve XDP_PACKET_HEADROOM in front of RX buffer. Similar DMA
direction is always set to DMA_BIDIRECTIONAL. This eliminates the need
for RX queue reconfiguration during BPF program setup. The RX queue is
always prepared for XDP.

No negative impact of DMA_BIDIRECTIONAL was measured.

Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/engleder/tsnep_main.c diff | blob | history
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