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geneve: avoid indirect calls in GRO path, when possible

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In the most common setups, the geneve tunnels use an inner
ethernet encapsulation. In the GRO path, when such condition is
true, we can call directly the relevant GRO helper and avoid
a few indirect calls.

Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Paolo Abeni 2022-04-13 10:44:40 +02:00 committed by David S. Miller
parent 4867d750b2
commit f623f83ae7
1 changed files with 8 additions and 2 deletions
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10
drivers/net/geneve.c
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@ -533,14 +533,16 @@ static struct sk_buff *geneve_gro_receive(struct sock *sk,
}
}
skb_gro_pull(skb, gh_len);
skb_gro_postpull_rcsum(skb, gh, gh_len);
type = gh->proto_type;
if (likely(type == htons(ETH_P_TEB)))
return call_gro_receive(eth_gro_receive, head, skb);
ptype = gro_find_receive_by_type(type);
if (!ptype)
goto out;
skb_gro_pull(skb, gh_len);
skb_gro_postpull_rcsum(skb, gh, gh_len);
pp = call_gro_receive(ptype->callbacks.gro_receive, head, skb);
flush = 0;
@ -563,6 +565,10 @@ static int geneve_gro_complete(struct sock *sk, struct sk_buff *skb,
gh_len = geneve_hlen(gh);
type = gh->proto_type;
/* since skb->encapsulation is set, eth_gro_complete() sets the inner mac header */
if (likely(type == htons(ETH_P_TEB)))
return eth_gro_complete(skb, nhoff + gh_len);
ptype = gro_find_complete_by_type(type);
if (ptype)
err = ptype->callbacks.gro_complete(skb, nhoff + gh_len);