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i40e: move check of full Tx ring to outside of send loop
Move the check if the HW Tx ring is full to outside the send loop. Currently it is checked for every single descriptor that we send. Instead, tell the send loop to only process a maximum number of packets equal to the number of available slots in the Tx ring. This way, we can remove the check inside the send loop to and gain some performance. Suggested-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Magnus Karlsson
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Tony Nguyen
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Jul 1, 2020
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