IB/ipoib: Use NAPI in UD/TX flows
Instead of explicit call to poll_cq of the tx ring, use the NAPI mechanism to handle the completions of each packet that has been sent to the HW. The next major changes were taken: * The driver init completion function in the creation of the send CQ, that function triggers the napi scheduling. * The driver uses CQ for RX for both modes UD and CM, and CQ for TX for CM and UD. Cc: Kamal Heib <kamalh@mellanox.com> Signed-off-by: Erez Shitrit <erezsh@mellanox.com> Reviewed-by: Alex Vesker <valex@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
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