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ixgbe: Make TSO check for CHECKSUM_PARTIAL to avoid skb_is_gso check

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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
ixgbe_tx_csum call we start with that check as well.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Alexander Duyck 2012-10-30 06:01:40 +00:00 committed by Jeff Kirsher
parent 610a63fc8e
commit 8f4fbb9bfc
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
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@ -5899,6 +5899,9 @@ static int ixgbe_tso(struct ixgbe_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;