tree baabd204980889bce5a760d5f65a29234364e80d
parent 9c010de7cf0a76f22fb38800816d34cf95ff9002
author Brett Creeley <brett.creeley@intel.com> 1551396347 -0800
committer Jeff Kirsher <jeffrey.t.kirsher@intel.com> 1555601928 -0700

ice: Calculate ITR increment based on direct calculation

Currently when calculating how much to increment ITR by inside of
ice_update_itr() we do some estimations and intermediate
calculations. Instead of doing estimations, just do the
calculation directly. This allows for a more accurate value and it
makes it easier for the next person to understand and update.

Also, remove the dividing the ITR value by 2 when latency
driven because the ITR values are already so low for 100Gbps
speed. This should help get to the desired ITR value faster.

Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>