diff options
author | Tom Herbert <therbert@google.com> | 2014-01-15 08:58:06 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2014-01-16 16:22:54 -0800 |
commit | 0b4cec8c2e872a6bc9146a001d7532f31023aed5 (patch) | |
tree | 4f8553bbaac648dffb40b33c4a1422a6be066724 /drivers/net/xen-netfront.c | |
parent | 57bdf7f42be05640f8080b06844c94367ad1884b (diff) |
net: Check skb->rxhash in gro_receive
When initializing a gro_list for a packet, first check the rxhash of
the incoming skb against that of the skb's in the list. This should be
a very strong inidicator of whether the flow is going to be matched,
and potentially allows a lot of other checks to be short circuited.
Use skb_hash_raw so that we don't force the hash to be calculated.
Tested by running netperf 200 TCP_STREAMs between two machines with
GRO, HW rxhash, and 1G. Saw no performance degration, slight reduction
of time in dev_gro_receive.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/xen-netfront.c')
0 files changed, 0 insertions, 0 deletions