diff options
| author |   Vladimir Oltean <vladimir.oltean@nxp.com> | 2021-03-31 23:08:57 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-03-31 14:57:44 -0700 |
| commit | 9d2b68cc108db2fdb35022ed2d88cfb305c441a6 (patch) | |
| tree | bfdb28824ada92b1b9f23b7bfbafad8a4805c770 /drivers/net/ethernet/freescale/enetc/enetc_pf.c | |
| parent | net: enetc: increase RX ring default size (diff) | |
| download | linux-dev-9d2b68cc108db2fdb35022ed2d88cfb305c441a6.tar.xz linux-dev-9d2b68cc108db2fdb35022ed2d88cfb305c441a6.zip | |
net: enetc: add support for XDP_REDIRECT
The driver implementation of the XDP_REDIRECT action reuses parts from
XDP_TX, most notably the enetc_xdp_tx function which transmits an array
of TX software BDs. Only this time, the buffers don't have DMA mappings,
we need to create them.
When a BPF program reaches the XDP_REDIRECT verdict for a frame, we can
employ the same buffer reuse strategy as for the normal processing path
and for XDP_PASS: we can flip to the other page half and seed that to
the RX ring.
Note that scatter/gather support is there, but disabled due to lack of
multi-buffer support in XDP (which is added by this series):
https://patchwork.kernel.org/project/netdevbpf/cover/cover.1616179034.git.lorenzo@kernel.org/
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/enetc/enetc_pf.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc_pf.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c index 0484dbe13422..f61fedf462e5 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c @@ -708,6 +708,7 @@ static const struct net_device_ops enetc_ndev_ops = { .ndo_do_ioctl = enetc_ioctl, .ndo_setup_tc = enetc_setup_tc, .ndo_bpf = enetc_setup_bpf, + .ndo_xdp_xmit = enetc_xdp_xmit, }; static void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev, |