diff options
| author |   Alexander Duyck <alexander.h.duyck@intel.com> | 2012-11-13 04:03:22 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2012-11-13 14:18:14 -0500 |
| commit | ed6aa10580b852e29acd48b686438fac8605a97b (patch) | |
| tree | fcd1e774a5b8c8ae5aee20caa02763d96c62f4f2 /drivers/net/ethernet/intel | |
| parent | igb: Support for modifying UDP RSS flow hashing (diff) | |
| download | linux-dev-ed6aa10580b852e29acd48b686438fac8605a97b.tar.xz linux-dev-ed6aa10580b852e29acd48b686438fac8605a97b.zip | |
igb: Make TSO check for CHECKSUM_PARTIAL to avoid skb_is_gso check
This change is meant to reduce the overhead for workloads that are not
using either TSO or checksum offloads. Most of the time the compiler
should jump ahead after failing this check to the VLAN check since in the
igb_tx_csum call we start with that check as well.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/intel')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index da9fd7b8e23a..b0730e9c7766 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -3998,6 +3998,9 @@ static int igb_tso(struct igb_ring *tx_ring, u32 vlan_macip_lens, type_tucmd; u32 mss_l4len_idx, l4len; + if (skb->ip_summed != CHECKSUM_PARTIAL) + return 0; + if (!skb_is_gso(skb)) return 0; |