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From: Danfeng Shan <dfshan1991@163.com>
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Date: Wed, 14 Sep 2016 10:29:10 +0800
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Subject: [dpdk-users] How can I get the tx queue length
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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.