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| author | Jesse Brandeburg | 2016-04-01 12:56:06 +0200 |
|---|---|---|
| committer | Jeff Kirsher | 2016-04-07 03:26:23 +0200 |
| commit | 1f15d66712bb64e39fe2c23b1b32f68f9e1d4ee7 (patch) | |
| tree | 78c5fda55e9acd9e39164c60d3624a50c8eb3664 /drivers/net/ethernet/intel/i40e/i40e_fcoe.c | |
| parent | i40e/i40evf: Drop unused tx_ring argument (diff) | |
| download | kernel-qcow2-linux-1f15d66712bb64e39fe2c23b1b32f68f9e1d4ee7.tar.gz kernel-qcow2-linux-1f15d66712bb64e39fe2c23b1b32f68f9e1d4ee7.tar.xz kernel-qcow2-linux-1f15d66712bb64e39fe2c23b1b32f68f9e1d4ee7.zip | |
i40e/i40evf: Faster RX via avoiding FCoE
As it turns out, calling into other files from hot path hurts
performance a lot. In this case the majority of the time we
call "check FCoE" and the packet is *not* FCoE, but this call
was taking 5% of our total cycles spent on receive.
Change-ID: I080552c26e7060bc7b78504dc2763f6f0b3d8c76
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/i40e/i40e_fcoe.c')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_fcoe.c | 12 |
1 files changed, 1 insertions, 11 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_fcoe.c b/drivers/net/ethernet/intel/i40e/i40e_fcoe.c index 92d2208d13c7..58e6c1570335 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_fcoe.c +++ b/drivers/net/ethernet/intel/i40e/i40e_fcoe.c @@ -1,7 +1,7 @@ /******************************************************************************* * * Intel Ethernet Controller XL710 Family Linux Driver - * Copyright(c) 2013 - 2015 Intel Corporation. + * Copyright(c) 2013 - 2016 Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -38,16 +38,6 @@ #include "i40e_fcoe.h" /** - * i40e_rx_is_fcoe - returns true if the rx packet type is FCoE - * @ptype: the packet type field from rx descriptor write-back - **/ -static inline bool i40e_rx_is_fcoe(u16 ptype) -{ - return (ptype >= I40E_RX_PTYPE_L2_FCOE_PAY3) && - (ptype <= I40E_RX_PTYPE_L2_FCOE_VFT_FCOTHER); -} - -/** * i40e_fcoe_sof_is_class2 - returns true if this is a FC Class 2 SOF * @sof: the FCoE start of frame delimiter **/ |