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authorStephen Hemminger <shemminger@vyatta.com>2009-04-01 11:20:20 +0000
committerDavid S. Miller <davem@davemloft.net>2009-04-02 01:07:37 -0700
commitf2bde7328633269ee935d9ed96535ade15cc348f (patch)
tree5691cd6965cc7dae9d29b79fd9facfdc4c18199e /net
parentd78ad8cbfe73ad568de38814a75e9c92ad0a907c (diff)
downloadlinux-2.6.38-lt-ux500-f2bde7328633269ee935d9ed96535ade15cc348f.tar.gz
net: allow multiple dev per napi with GRO
GRO assumes that there is a one-to-one relationship between NAPI structure and network device. Some devices like sky2 share multiple devices on a single interrupt so only have one NAPI handler. Rather than split GRO from NAPI, just have GRO assume if device changes that it is a different flow. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/dev.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 52fea5b28ca..91d792d17e0 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2472,8 +2472,9 @@ static int __napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb)
return GRO_NORMAL;
for (p = napi->gro_list; p; p = p->next) {
- NAPI_GRO_CB(p)->same_flow = !compare_ether_header(
- skb_mac_header(p), skb_gro_mac_header(skb));
+ NAPI_GRO_CB(p)->same_flow = (p->dev == skb->dev)
+ && !compare_ether_header(skb_mac_header(p),
+ skb_gro_mac_header(skb));
NAPI_GRO_CB(p)->flush = 0;
}