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From: Simon Horman <horms@kernel.org>
To: Tariq Toukan <tariqt@nvidia.com>
Cc: Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Saeed Mahameed <saeedm@nvidia.com>,
	Leon Romanovsky <leon@kernel.org>, Mark Bloch <mbloch@nvidia.com>,
	netdev@vger.kernel.org, linux-rdma@vger.kernel.org,
	linux-kernel@vger.kernel.org, Gal Pressman <gal@nvidia.com>,
	Moshe Shemesh <moshe@nvidia.com>,
	Dragos Tatulea <dtatulea@nvidia.com>
Subject: Re: [PATCH net-next 0/3] net/mlx5e: Improve channel creation time via fast-path MKEY initialization
Date: Fri, 20 Mar 2026 11:56:45 +0000	[thread overview]
Message-ID: <20260320115645.GE1753385@horms.kernel.org> (raw)
In-Reply-To: <20260319074338.24265-1-tariqt@nvidia.com>

On Thu, Mar 19, 2026 at 09:43:35AM +0200, Tariq Toukan wrote:
> Hi,
> 
> This series improves channel creation time by moving per-channel MKEY
> initialization from a slow-path FW command to a fast-path UMR WQE.
> 
> The benefit becomes more significant with larger MKEYs and a higher
> number of channels.
> 
> On my setup with the maximum configuration (248 channels, MTU 9000,
> RX/TX ring size 8K), the "interface up" operation is 2.081 seconds
> faster:
> 
> Before: 5.618 seconds
> After:  3.537 seconds
> 
> This corresponds to ~8.4 msec saved per channel.
> 
> Regards,
> Tariq
> 
> Tariq Toukan (3):
>   net/mlx5e: Move RX MPWQE slowpath fields into a separate struct
>   net/mlx5e: RX, Pre-calculate pad value in MPWQE
>   net/mlx5e: Speed up channel creation by initializing MKEY entries via
>     UMR WQE

Thanks,

For the series:

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


      parent reply	other threads:[~2026-03-20 11:56 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-19  7:43 [PATCH net-next 0/3] net/mlx5e: Improve channel creation time via fast-path MKEY initialization Tariq Toukan
2026-03-19  7:43 ` [PATCH net-next 1/3] net/mlx5e: Move RX MPWQE slowpath fields into a separate struct Tariq Toukan
2026-03-20 23:02   ` Joe Damato
2026-03-19  7:43 ` [PATCH net-next 2/3] net/mlx5e: RX, Pre-calculate pad value in MPWQE Tariq Toukan
2026-03-20 23:02   ` Joe Damato
2026-03-19  7:43 ` [PATCH net-next 3/3] net/mlx5e: Speed up channel creation by initializing MKEY entries via UMR WQE Tariq Toukan
2026-03-24  0:39   ` Jakub Kicinski
2026-03-20 11:56 ` Simon Horman [this message]

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