ixgbe: performance tweaks

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drop variables that had cache lines modified in simultaneous hot paths.
keep some variables modified on hot paths but make their storage per queue.
cache align DMA data buffer start addresses.
cache align (padding) some structures that end within a cacheline.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Jesse Brandeburg 2009-12-03 11:33:29 +00:00 • committed by David S. Miller

parent 6bacb30079

commit 7ca3bc582c

3 changed files with 27 additions and 30 deletions

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20

drivers/net/ixgbe/ixgbe.h

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5

drivers/net/ixgbe/ixgbe_ethtool.c

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32

drivers/net/ixgbe/ixgbe_main.c

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