ixgbe: Simplify logic for getting traffic class from user priority
This patch is meant to help simplify the logic for getting traffic classes from user priorities. To do this I am adding a function named ixgbe_dcb_get_tc_from_up that will go through the traffic classes in reverse order in order to determine which traffic class contains a bit for a given user priority. Adding a declaration for this new function to the header so that we have a centralized means for sorting out traffic classes belonging to features such as FCoE. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Tested-by: Ross Brattain <ross.b.brattain@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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