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authorDavid S. Miller <davem@davemloft.net>2015-06-01 14:56:09 -0700
committerDavid S. Miller <davem@davemloft.net>2015-06-01 14:56:09 -0700
commitbdef7de4b8d9be4cf7bf5aea977f827310ab3ff0 (patch)
tree8fbf2ce8fd40dce5e41cfd243126221a360be352 /net/core
parent493be55ac3d81f9c32832237288eb397a9993d5d (diff)
net: Add priority to packet_offload objects.
When we scan a packet for GRO processing, we want to see the most common packet types in the front of the offload_base list. So add a priority field so we can handle this properly. IPv4/IPv6 get the highest priority with the implicit zero priority field. Next comes ethernet with a priority of 10, and then we have the MPLS types with a priority of 15. Suggested-by: Eric Dumazet <eric.dumazet@gmail.com> Suggested-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/dev.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 594163d0c6eb..0602e917a305 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -469,10 +469,14 @@ EXPORT_SYMBOL(dev_remove_pack);
*/
void dev_add_offload(struct packet_offload *po)
{
- struct list_head *head = &offload_base;
+ struct packet_offload *elem;
spin_lock(&offload_lock);
- list_add_rcu(&po->list, head);
+ list_for_each_entry(elem, &offload_base, list) {
+ if (po->priority < elem->priority)
+ break;
+ }
+ list_add_rcu(&po->list, elem->list.prev);
spin_unlock(&offload_lock);
}
EXPORT_SYMBOL(dev_add_offload);

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