t; common/mlx5: add DevX command to query WQ
> common/mlx5: add DevX commands for queue counters
> net/mlx5: fix imissed statistics
>
>
> Regards,
> Asaf Penso
>
> >-Original Message-
> >From: users On Behalf Of Tom Barbette
> >Sent: Tuesday
e
>Sent: Tuesday, April 13, 2021 4:40 PM
>To: Gerry Wan ; users@dpdk.org
>Cc: Matan Azrad ; Shahaf Shuler ;
>Slava Ovsiienko
>Subject: Re: [dpdk-users] mlx5: packets lost between good+discard and phy
>counters
>
>CC-ing maintainers.
>
>I did observe that too. rx_
CC-ing maintainers.
I did observe that too. rx_out_of_buffer is always 0 since a few months
(I did not personnaly try to revert versions as Gerry did, I assume it
was a DPDK update indeed as Gerry verified).
Tom
Le 11-04-21 à 03:31, Gerry Wan a écrit :
After further investigation, I think
After further investigation, I think this may be a bug introduced in DPDK
v20.11, where these "lost" packets should be counted as "rx_out_of_buffer"
and "rx_missed_errors". On v20.08 both of these counters increment, but on
v20.11 and v21.02 these counters always remain 0.
Any workarounds for this
I have a simple forwarding experiment using a mlx5 NIC directly connected
to a generator. I am noticing that at high enough throughput,
rx_good_packets + rx_phy_discard_packets may not equal rx_phy_packets.
Where are these packets being dropped?
Below is an example xstats where I receive at almost
