On 08/31/2016 05:10 PM, Tom Herbert wrote: > This patch set introduces transmit flow steering for socketless packets. > The idea is that we record the transmit queues in a flow table that is > indexed by skbuff hash. The flow table entries have two values: the > queue_index and the head cnt of packets from the TX queue. We only allow > a queue to change for a flow if the tail cnt in the TX queue advances > beyond the recorded head cnt. That is the condition that should indicate > that all outstanding packets for the flow have completed transmission so > the queue can change. > > Tracking the inflight queue is performed as part of DQL. Two fields are > added to the dql structure: num_enqueue_ops and num_completed_ops. > num_enqueue_ops incremented in dql_queued and num_completed_ops is > incremented in dql_completed by the number of operations completed (an > new argument to the function). > > This patch set creates /sys/class/net/eth*/xps_dev_flow_table_cnt > which number of entries in the XPS flow table.
If you respin, do you mind updating the sysfs documentation at Documentation/ABI/testing/sysfs-class-net-queues with the new entries you are adding? Thanks! -- Florian
