i40e: added queue pair disable/enable functions
Add functions for queue pair enable/disable. Instead of resetting the whole device, only the affected queue pair is disabled or enabled. This plumbing is used in a later commit, when zero-copy AF_XDP support is introduced. Signed-off-by: NBjörn Töpel <bjorn.topel@intel.com> Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
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