tree 66efbbbae92932967599ad7ae3e44981f1fabf4e
parent 8620a103b5e38d952280f3d97b5e1bcce8d7874c
author Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> 1251812996 +0000
committer David S. Miller <davem@davemloft.net> 1251852018 -0700

ixgbe: Properly disable DCB arbiters prior to applying changes

When disabling the Rx and Tx data arbiters prior to configuration changes,
the arbiters were not being shut down properly.  This can create a race
in the DCB hardware blocks, and potentially hang the arbiters.  Also, the
Tx descriptor arbiter shouldn't be disabled when applying configuration
changes; disabling this arbiter can cause a Tx hang.

Signed-off-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>