netdev - Re: [PATCH net-next V6 13/13] net/mlx5: Implement eSwitch hairpin per prio buffers devlink params

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Message-ID: <20250709084117.GO452973@horms.kernel.org>
Date: Wed, 9 Jul 2025 09:41:17 +0100
From: Simon Horman <horms@...nel.org>
To: Saeed Mahameed <saeed@...nel.org>
Cc: "David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
	Tariq Toukan <tariqt@...dia.com>, Gal Pressman <gal@...dia.com>,
	Leon Romanovsky <leonro@...dia.com>, Jiri Pirko <jiri@...dia.com>
Subject: Re: [PATCH net-next V6 13/13] net/mlx5: Implement eSwitch hairpin
 per prio buffers devlink params

On Tue, Jul 08, 2025 at 08:04:55PM -0700, Saeed Mahameed wrote:
> From: Saeed Mahameed <saeedm@...dia.com>
> 
> E-Switch hairpin per prio buffers are controlled and configurable by the
> device, add two devlink params to control them.
> 
> esw_haripin_per_prio_log_queue_size: p0,p1,....,p7
>   Log(base 2) of the number of packets descriptors allocated
>   internally for hairpin for IEEE802.1p priorities.
>   0 means that no descriptors are allocated for this priority
>   and traffic with this priority will be dropped.
> 
> esw_hairpin_per_prio_log_buf_size: p0,p1,...,p7
>   Log(base 2) of the buffer size (in bytes) allocated internally
>   for hairpin for IEEE802.1p priorities.
>   0 means no buffer for this priority and traffic with this
>   priority will be dropped.
> 
> Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
> Reviewed-by: Jiri Pirko <jiri@...dia.com>

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