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xdp: transition into using xdp_frame for ndo_xdp_xmit

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Changing API ndo_xdp_xmit to take a struct xdp_frame instead of struct
xdp_buff.  This brings xdp_return_frame and ndp_xdp_xmit in sync.

This builds towards changing the API further to become a bulk API,
because xdp_buff is not a queue-able object while xdp_frame is.

V4: Adjust for commit 59655a5b6c ("tuntap: XDP_TX can use native XDP")
V7: Adjust for commit d9314c474d ("i40e: add support for XDP_REDIRECT")

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jesper Dangaard Brouer
2018-04-17 16:46:37 +02:00
committed by David S. Miller
parent 039930945a
commit 44fa2dbd47
7 changed files with 74 additions and 46 deletions
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4
include/linux/netdevice.h
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@@ -1165,7 +1165,7 @@ struct dev_ifalias {
* This function is used to set or query state related to XDP on the
* netdevice and manage BPF offload. See definition of
* enum bpf_netdev_command for details.
* int (*ndo_xdp_xmit)(struct net_device *dev, struct xdp_buff *xdp);
* int (*ndo_xdp_xmit)(struct net_device *dev, struct xdp_frame *xdp);
* This function is used to submit a XDP packet for transmit on a
* netdevice.
* void (*ndo_xdp_flush)(struct net_device *dev);
@@ -1356,7 +1356,7 @@ struct net_device_ops {
int (*ndo_bpf)(struct net_device *dev,
struct netdev_bpf *bpf);
int (*ndo_xdp_xmit)(struct net_device *dev,
struct xdp_buff *xdp);
struct xdp_frame *xdp);
void (*ndo_xdp_flush)(struct net_device *dev);
};