i40e/i40evf: Faster RX via avoiding FCoE

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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>

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Jesse Brandeburg 2016-04-01 03:56:06 -07:00 • committed by Jeff Kirsher

parent 84b079928a

commit 1f15d66712

5 changed files with 30 additions and 14 deletions

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12

drivers/net/ethernet/intel/i40e/i40e_fcoe.c

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8

drivers/net/ethernet/intel/i40e/i40e_txrx.c

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10

drivers/net/ethernet/intel/i40e/i40e_txrx.h

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4

drivers/net/ethernet/intel/i40evf/i40e_txrx.c

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10

drivers/net/ethernet/intel/i40evf/i40e_txrx.h

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