]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
ixgbe: Use ring values to test for Tx pending
authorAlexander Duyck <alexander.h.duyck@intel.com>
Wed, 22 Nov 2017 18:56:46 +0000 (10:56 -0800)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>
Tue, 9 Jan 2018 16:50:17 +0000 (08:50 -0800)
commit1489542b9c750cfa39664a6ae37c9ac622b70d24
treeeebe64b4396204cf1b996e25ffb7848494491223
parent4e039c1675d4ecfb8ef25a20ac686b38490b36fd
ixgbe: Use ring values to test for Tx pending

This patch simplifies the check for Tx pending traffic and makes it more
holistic as there being any difference between next_to_use and
next_to_clean is much more informative than if head and tail are equal, as
it is possible for us to either not update tail, or not be notified of
completed work in which case next_to_clean would not be equal to head.

In addition the simplification makes it so that we don't have to read
hardware which allows us to drop a number of variables that were previously
being used in the call.

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>
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c