linux/drivers/net/ethernet/intel
Alexander Duyck 1793668c3b i40e/i40evf: Update code to better handle incrementing page count
Update the driver code so that we do bulk updates of the page reference
count instead of just incrementing it by one reference at a time.  The
advantage to doing this is that we cut down on atomic operations and
this in turn should give us a slight improvement in cycles per packet.
In addition if we eventually move this over to using build_skb the gains
will be more noticeable.

I also found and fixed a store forwarding stall from where we were
assigning "*new_buff = *old_buff".  By breaking it up into individual
copies we can avoid this and as a result the performance is slightly
improved.

Change-ID: I1d3880dece4133eca3c32423b04a5467321ccc52
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-03-27 16:45:13 -07:00
..
e1000 e1000: use new API ethtool_{get|set}_link_ksettings 2017-03-21 15:27:58 -07:00
e1000e e1000e: use new API ethtool_{get|set}_link_ksettings 2017-03-21 15:31:30 -07:00
fm10k mqprio: Modify mqprio to pass user parameters via ndo_setup_tc. 2017-03-15 15:20:27 -07:00
i40e i40e/i40evf: Update code to better handle incrementing page count 2017-03-27 16:45:13 -07:00
i40evf i40e/i40evf: Update code to better handle incrementing page count 2017-03-27 16:45:13 -07:00
igb igb: use new API ethtool_{get|set}_link_ksettings 2017-03-21 15:42:19 -07:00
igbvf igbvf: use new API ethtool_{get|set}_link_ksettings 2017-03-21 15:51:39 -07:00
ixgb ixgb: use new API ethtool_{get|set}_link_ksettings 2017-03-21 15:53:19 -07:00
ixgbe igb/ixgbe: Fix typo in igb_build_skb and/or ixgbe_build_skb code comment 2017-03-17 12:55:55 -07:00
ixgbevf ixgbevf: get rid of custom busy polling code 2017-02-03 17:17:53 -05:00
e100.c drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
Kconfig ptp_clock: Allow for it to be optional 2016-11-16 09:26:34 +01:00
Makefile fm10k: Add skeletal frame for Intel(R) FM10000 Ethernet Switch Host Interface Driver 2014-09-23 03:59:13 -07:00