7cc17f6df9
This patch provides minor improvements to the logic governing dequeuing from the ring. Previously whenever a frame was dequeued we've been trying to dequeue from the ring another one till inflight == 0. Now threshold is set for 8 frames pending in the cache to be consumed by the vnet. This threshold has been chosen based on cache ring stats observation in the system under load. Some unnecessary logic for setting deq_tail has been removed. Also logging has been corrected, and cache ring logic simplied. Type: improvement Signed-off-by: Piotr Bronowski <piotrx.bronowski@intel.com> Change-Id: I19f3daf5913006e9cb23e142a163f596e85f5bda