From bdef7de4b8d9be4cf7bf5aea977f827310ab3ff0 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Mon, 1 Jun 2015 14:56:09 -0700 Subject: 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 Suggested-by: Toshiaki Makita Signed-off-by: David S. Miller --- net/core/dev.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'net/core') 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); -- cgit v1.2.3