To support shared Rx queue[1], plan to update testpmd with following changes: - Add ``--rxq-share`` to enable shared Rx queue if device supports. - In verbose mode, dump mbuf->port for each received packet. - Check forwarding configuration to make sure queue streams of same share group scheduled on same core. - Change forwarding engines to locate source stream by each packet source port, update stream counters and forward according to source stream setup. [1] https://mails.dpdk.org/archives/dev/2021-July/215575.html Signed-off-by: Xueming Li <xuemingl@nvidia.com>