net: comment fixes against BPF devmap helper calls
Update BPF comments to accurately reflect XDP usage.
Fixes: 97f91a7cf0
("bpf: add bpf_redirect_map helper routine")
Reported-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -345,14 +345,20 @@ union bpf_attr {
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* int bpf_redirect(ifindex, flags)
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* int bpf_redirect(ifindex, flags)
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* redirect to another netdev
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* redirect to another netdev
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* @ifindex: ifindex of the net device
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* @ifindex: ifindex of the net device
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* @flags: bit 0 - if set, redirect to ingress instead of egress
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* @flags:
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* other bits - reserved
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* cls_bpf:
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* Return: TC_ACT_REDIRECT
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* bit 0 - if set, redirect to ingress instead of egress
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* int bpf_redirect_map(key, map, flags)
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* other bits - reserved
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* xdp_bpf:
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* all bits - reserved
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* Return: cls_bpf: TC_ACT_REDIRECT on success or TC_ACT_SHOT on error
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* xdp_bfp: XDP_REDIRECT on success or XDP_ABORT on error
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* int bpf_redirect_map(map, key, flags)
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* redirect to endpoint in map
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* redirect to endpoint in map
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* @map: pointer to dev map
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* @key: index in map to lookup
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* @key: index in map to lookup
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* @map: fd of map to do lookup in
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* @flags: --
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* @flags: --
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* Return: XDP_REDIRECT on success or XDP_ABORT on error
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*
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*
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* u32 bpf_get_route_realm(skb)
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* u32 bpf_get_route_realm(skb)
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* retrieve a dst's tclassid
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* retrieve a dst's tclassid
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