[dpdk-dev] [RFC 1/2] ethdev: move queue stats to xstats

[Andrew Rybchenko]

On 10/13/20 12:53 AM, Thomas Monjalon wrote:
> 12/10/2020 18:46, Ferruh Yigit:
>> Queue stats are stored in 'struct rte_eth_stats' as array and array size
>> is defined by 'RTE_ETHDEV_QUEUE_STAT_CNTRS' compile time flag.
>>
>> As a result of technical board discussion, decided to remove the queue
>> statistics from 'struct rte_eth_stats' in the long term.
>>
>> Instead PMDs should represent the queue statistics via xstats, this
>> gives more flexibility on the number of the queues supported.
> 
> Yes

I like Stephen's idea to have dedicated API to get stats per
queue. Of course it is doable via getting xstats by IDs,
but IMHO it is over-complicated. From the other hand
it sounds like a duplication to have it in xstats and
dedicated API (basically the same as we have for basic
stats and xstats).