Thread (3 messages) 3 messages, 3 authors, 2025-09-30

Re: [PATCH net-next v2] page_pool: Clamp pool size to max 16K pages

From: patchwork-bot+netdevbpf@kernel.org
Date: 2025-09-30 10:30:13
Also in: lkml

Hello:

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

On Fri, 26 Sep 2025 16:16:05 +0300 you wrote:
page_pool_init() returns E2BIG when the page_pool size goes above 32K
pages. As some drivers are configuring the page_pool size according to
the MTU and ring size, there are cases where this limit is exceeded and
the queue creation fails.

The page_pool size doesn't have to cover a full queue, especially for
larger ring size. So clamp the size instead of returning an error. Do
this in the core to avoid having each driver do the clamping.

[...]
Here is the summary with links:
  - [net-next,v2] page_pool: Clamp pool size to max 16K pages
    https://git.kernel.org/netdev/net-next/c/a1b501a8c6a8

You are awesome, thank you!
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