adcf2717cb
Users can create the desired number of RxQ and TxQ in DPDK. For example, if the number of RxQ = 2 and the number of TxQ = 5, a total of 8 file descriptors will be created for a tap device, including RxQ, TxQ, and one for keepalive. The RxQ and TxQ with the same ID are paired by dup(2). In this scenario, Kernel will have 3 RxQ where packets are incoming but not read. The reason for this is that there are only 2 RxQ that are polled by DPDK, while there are 5 queues in Kernel. This patch add a checking if DPDK has appropriate numbers of queues to avoid unexpected packet drop. Signed-off-by: Nobuhiro Miki <nmiki@yahoo-corp.jp> Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com> |
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