netdev - Re: [PATCH net-next 5/8] net/mlx5e: Expose the VF/SF RX drop counter on the representor

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Message-ID: <20240328092132.47877242@kernel.org>
Date: Thu, 28 Mar 2024 09:21:32 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Simon Horman <horms@...nel.org>
Cc: Tariq Toukan <tariqt@...dia.com>, "David S. Miller"
 <davem@...emloft.net>, Paolo Abeni <pabeni@...hat.com>, Eric Dumazet
 <edumazet@...gle.com>, netdev@...r.kernel.org, Saeed Mahameed
 <saeedm@...dia.com>, Gal Pressman <gal@...dia.com>, Leon Romanovsky
 <leonro@...dia.com>, Carolina Jubran <cjubran@...dia.com>, Aya Levin
 <ayal@...dia.com>
Subject: Re: [PATCH net-next 5/8] net/mlx5e: Expose the VF/SF RX drop
 counter on the representor

On Thu, 28 Mar 2024 11:18:31 +0000 Simon Horman wrote:
> > The "rx_vport_out_of_buffer" equals the sum of all
> > Q counters out_of_buffer values allocated on the VF/SF.  
> 
> Hi Carolina and Tariq,
> 
> I am wondering if any consideration was given to making this
> a generic counter. Buffer exhaustion sounds like something that
> other NICs may report too.

I think it's basically rx_missed_errors from rtnl_link_stats64.
mlx5 doesn't currently report it at all, AFAICT.