[PATCH v3 1/1] net/tap: add a check that Rx/Tx have the same num of queues

[Ferruh Yigit]

On 1/19/2022 7:43 AM, Nobuhiro MIKI wrote:
> 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 at yahoo-corp.jp>

Reviewed-by: Ferruh Yigit <ferruh.yigit at intel.com>

Applied to dpdk-next-net/main, thanks.