netdev - Re: [PATCH net-next] net/mlx5: Expose uar access and odp page fault counters

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Message-ID: <aNaL90oj8vyq9-A9@horms.kernel.org>
Date: Fri, 26 Sep 2025 13:49:59 +0100
From: Simon Horman <horms@...nel.org>
To: Tariq Toukan <tariqt@...dia.com>
Cc: Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Jiri Pirko <jiri@...nulli.us>, Jonathan Corbet <corbet@....net>,
	Saeed Mahameed <saeedm@...dia.com>,
	Leon Romanovsky <leon@...nel.org>, Mark Bloch <mbloch@...dia.com>,
	netdev@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org,
	Gal Pressman <gal@...dia.com>, Maor Gottlieb <maorg@...dia.com>,
	Moshe Shemesh <moshe@...dia.com>,
	Akiva Goldberger <agoldberger@...dia.com>
Subject: Re: [PATCH net-next] net/mlx5: Expose uar access and odp page fault
 counters

On Thu, Sep 25, 2025 at 01:45:30PM +0300, Tariq Toukan wrote:
> From: Akiva Goldberger <agoldberger@...dia.com>
> 
> Add three counters to vnic health reporter:
> bar_uar_access, odp_local_triggered_page_fault, and
> odp_remote_triggered_page_fault.
> 
> - bar_uar_access
>     number of WRITE or READ access operations to the UAR on the PCIe
>     BAR.
> - odp_local_triggered_page_fault
>     number of locally-triggered page-faults due to ODP.
> - odp_remote_triggered_page_fault
>     number of remotly-triggered page-faults due to ODP.
> 
> Example access:
>     $ devlink health diagnose pci/0000:08:00.0 reporter vnic
> 	vNIC env counters:
> 	total_error_queues: 0 send_queue_priority_update_flow: 0
> 	comp_eq_overrun: 0 async_eq_overrun: 0 cq_overrun: 0
> 	invalid_command: 0 quota_exceeded_command: 0
> 	nic_receive_steering_discard: 0 icm_consumption: 1032
> 	bar_uar_access: 1279 odp_local_triggered_page_fault: 20
> 	odp_remote_triggered_page_fault: 34
> 
> Signed-off-by: Akiva Goldberger <agoldberger@...dia.com>
> Reviewed-by: Moshe Shemesh <moshe@...dia.com>
> Signed-off-by: Tariq Toukan <tariqt@...dia.com>

Reviewed-by: Simon Horman <horms@...nel.org>

...