diff options
| author | Eric Dumazet | 2015-09-16 00:24:28 +0200 |
|---|---|---|
| committer | David S. Miller | 2015-09-18 06:01:05 +0200 |
| commit | 4b1b865e4e97e336316f30e32af36d71e98bdabc (patch) | |
| tree | de196e18e8380347054a5a4dec871ccfd8cf4f57 /drivers/net/bonding/bond_main.c | |
| parent | tcp: provide skb->hash to synack packets (diff) | |
| download | kernel-qcow2-linux-4b1b865e4e97e336316f30e32af36d71e98bdabc.tar.gz kernel-qcow2-linux-4b1b865e4e97e336316f30e32af36d71e98bdabc.tar.xz kernel-qcow2-linux-4b1b865e4e97e336316f30e32af36d71e98bdabc.zip | |
bonding: use l4 hash if available
If skb carries a l4 hash, no need to perform a flow dissection.
Performance is slightly better :
lpaa5:~# ./super_netperf 200 -H lpaa6 -t TCP_RR -l 100
2.39012e+06
lpaa5:~# ./super_netperf 200 -H lpaa6 -t TCP_RR -l 100
2.39393e+06
lpaa5:~# ./super_netperf 200 -H lpaa6 -t TCP_RR -l 100
2.39988e+06
After patch :
lpaa5:~# ./super_netperf 200 -H lpaa6 -t TCP_RR -l 100
2.43579e+06
lpaa5:~# ./super_netperf 200 -H lpaa6 -t TCP_RR -l 100
2.44304e+06
lpaa5:~# ./super_netperf 200 -H lpaa6 -t TCP_RR -l 100
2.44312e+06
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tom Herbert <tom@herbertland.com>
Cc: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bonding/bond_main.c')
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 771a449d2f56..90f2615428c0 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -3136,6 +3136,10 @@ u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb) struct flow_keys flow; u32 hash; + if (bond->params.xmit_policy == BOND_XMIT_POLICY_ENCAP34 && + skb->l4_hash) + return skb->hash; + if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER2 || !bond_flow_dissect(bond, skb, &flow)) return bond_eth_hash(skb); |