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| author | Jesper Dangaard Brouer <brouer@redhat.com> | 2018-05-31 10:59:47 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-06-03 17:11:34 +0200 |
| commit | 42b33468987bac0dd95c30f14820c7abac04a153 (patch) | |
| tree | e15d264d864bf9da0b438a0c6db4b2181eab3c4b /drivers/net/virtio_net.c | |
| parent | Merge branch 'misc-BPF-improvements' (diff) | |
| download | linux-42b33468987bac0dd95c30f14820c7abac04a153.tar.xz linux-42b33468987bac0dd95c30f14820c7abac04a153.zip | |
xdp: add flags argument to ndo_xdp_xmit API
This patch only change the API and reject any use of flags. This is an
intermediate step that allows us to implement the flush flag operation
later, for each individual driver in a separate patch.
The plan is to implement flush operation via XDP_XMIT_FLUSH flag
and then remove XDP_XMIT_FLAGS_NONE when done.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'drivers/net/virtio_net.c')
| -rw-r--r-- | drivers/net/virtio_net.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index b2647dd5d302..4ed823625953 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -468,7 +468,7 @@ static int __virtnet_xdp_tx_xmit(struct virtnet_info *vi, } static int virtnet_xdp_xmit(struct net_device *dev, - int n, struct xdp_frame **frames) + int n, struct xdp_frame **frames, u32 flags) { struct virtnet_info *vi = netdev_priv(dev); struct receive_queue *rq = vi->rq; @@ -481,6 +481,9 @@ static int virtnet_xdp_xmit(struct net_device *dev, int err; int i; + if (unlikely(flags & ~XDP_XMIT_FLAGS_NONE)) + return -EINVAL; + qp = vi->curr_queue_pairs - vi->xdp_queue_pairs + smp_processor_id(); sq = &vi->sq[qp]; |