igb: Refactor clean_rx_irq to reduce overhead and improve performance
authorAlexander Duyck <alexander.h.duyck@intel.com>
Fri, 26 Aug 2011 07:43:54 +0000 (07:43 +0000)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>
Tue, 20 Sep 2011 06:58:20 +0000 (23:58 -0700)
commit16eb8815c2355b50bff218513367778e6303e9f9
tree007e294a9e6d167dd95342357cc0bbeb95be4b6c
parent238ac817fd23f7dd5f61a8c51b4678f8d199db57
igb: Refactor clean_rx_irq to reduce overhead and improve performance

This change is meant to be a general cleanup and performance improvement
for clean_rx_irq.  The previous patch should have updated the allocation so
that the rings can be treated as read-only within the clean_rx_irq
function.  In addition I am re-ordering the operations such that several
goals are accomplished including reducing the overhead for packet
accounting, reducing the number of items on the stack, and improving
overall performance.

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>
drivers/net/ethernet/intel/igb/igb_main.c