Thread (3 messages) 3 messages, 3 authors, 2026-02-06

Re: [PATCH net-next V2] net/mlx5e: SHAMPO, Switch to header memcpy

From: patchwork-bot+netdevbpf@kernel.org
Date: 2026-02-06 02:50:10
Also in: linux-rdma, lkml

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski [off-list ref]:

On Wed, 4 Feb 2026 22:03:45 +0200 you wrote:
From: Dragos Tatulea <dtatulea@nvidia.com>

Previously the HW-GRO code was using a separate page_pool for the header
buffer. The pages of the header buffer were replenished via UMR. This
mechanism has some drawbacks:
- Reference counting on the page_pool page frags is not cheap.
- UMRs have HW overhead for updating and also for access. Especially for
  the KLM type which was previously used.
- UMR code for headers is complex.

[...]
Here is the summary with links:
  - [net-next,V2] net/mlx5e: SHAMPO, Switch to header memcpy
    https://git.kernel.org/netdev/net-next/c/24cf78c73831

You are awesome, thank you!
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