[dpdk-users] How can I get the tx queue length

[Danfeng Shan]

Hi, all

DPDK has a function " rte_eth_rx_queue_count" to get the number of used 
descriptors in a specific (rx) queue. (api doc of this function: 
http://dpdk.org/doc/api/rte__ethdev_8h.html#a02445040da8af03a8757ff9577a9b699)

However, I cannot find the corresponding function (like 
rte_eth_tx_queue_count) that can get the number of used descriptors in 
tx queue.

Is there any technical limitations ?

Thanks.