diff options
| author |   Charles McLachlan <cmclachlan@solarflare.com> | 2019-10-31 10:24:12 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-10-31 14:14:53 -0700 |
| commit | dfe44c1f52eed6020df74e83d21d617308164a68 (patch) | |
| tree | 04fdf1c0534b08b71fa3ae5d9396a2a599a776a0 /drivers/net/ethernet/sfc/efx.c | |
| parent | sfc: allocate channels for XDP tx queues (diff) | |
| download | linux-dev-dfe44c1f52eed6020df74e83d21d617308164a68.tar.xz linux-dev-dfe44c1f52eed6020df74e83d21d617308164a68.zip | |
sfc: handle XDP_TX outcomes of XDP eBPF programs
Provide an ndo_xdp_xmit function that uses the XDP tx queue for this
CPU to send the packet.
Signed-off-by: Charles McLachlan <cmclachlan@solarflare.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/efx.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/efx.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index 10c9b1ede799..0fa9972027db 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -228,6 +228,8 @@ static void efx_start_all(struct efx_nic *efx); static void efx_stop_all(struct efx_nic *efx); static int efx_xdp_setup_prog(struct efx_nic *efx, struct bpf_prog *prog); static int efx_xdp(struct net_device *dev, struct netdev_bpf *xdp); +static int efx_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **xdpfs, + u32 flags); #define EFX_ASSERT_RESET_SERIALISED(efx) \ do { \ @@ -2633,6 +2635,7 @@ static const struct net_device_ops efx_netdev_ops = { #endif .ndo_udp_tunnel_add = efx_udp_tunnel_add, .ndo_udp_tunnel_del = efx_udp_tunnel_del, + .ndo_xdp_xmit = efx_xdp_xmit, .ndo_bpf = efx_xdp }; @@ -2680,6 +2683,17 @@ static int efx_xdp(struct net_device *dev, struct netdev_bpf *xdp) } } +static int efx_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **xdpfs, + u32 flags) +{ + struct efx_nic *efx = netdev_priv(dev); + + if (!netif_running(dev)) + return -EINVAL; + + return efx_xdp_tx_buffers(efx, n, xdpfs, flags & XDP_XMIT_FLUSH); +} + static void efx_update_name(struct efx_nic *efx) { strcpy(efx->name, efx->net_dev->name); |