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From Jake: Notify the iflib stack of whether we received any pause frames during the timer window. This allows the stack to avoid reporting a Tx hang due to the device being paused. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Submitted by: Jacob Keller <jacob.e.keller@intel.com> Reviewed by: gallatin@ Sponsored by: Intel Corporation Differential Revision: https://reviews.freebsd.org/D21869