netdev - Re: [PATCH net-next 0/6] net: mvneta: reduce size of TSO header allocation

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Date: Thu, 11 May 2023 11:10:22 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Russell King (Oracle) <linux@...linux.org.uk>
Cc: kabel@...nel.org, davem@...emloft.net, edumazet@...gle.com,
 kuba@...nel.org, netdev@...r.kernel.org, pabeni@...hat.com,
 thomas.petazzoni@...tlin.com
Subject: Re: [PATCH net-next 0/6] net: mvneta: reduce size of TSO header
 allocation

Hello:

This series was applied to netdev/net-next.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Wed, 10 May 2023 11:14:28 +0100 you wrote:
> Hi,
> 
> With reference to
> https://forum.turris.cz/t/random-kernel-exceptions-on-hbl-tos-7-0/18865/
> https://github.com/openwrt/openwrt/pull/12375#issuecomment-1528842334
> 
> It appears that mvneta attempts an order-6 allocation for the TSO
> header memory. While this succeeds early on in the system's life time,
> trying order-6 allocations later can result in failure due to memory
> fragmentation.
> 
> [...]

Here is the summary with links:
  - [net-next,1/5] net: mvneta: fix transmit path dma-unmapping on error
    https://git.kernel.org/netdev/net-next/c/fef99e840d46
  - [net-next,2/5] net: mvneta: mark mapped and tso buffers separately
    https://git.kernel.org/netdev/net-next/c/b0bd1b07c3ad
  - [net-next,3/5] net: mvneta: use buf->type to determine whether to dma-unmap
    https://git.kernel.org/netdev/net-next/c/f00ba4f41acc
  - [net-next,4/5] net: mvneta: move tso_build_hdr() into mvneta_tso_put_hdr()
    https://git.kernel.org/netdev/net-next/c/d41eb5557668
  - [net-next,5/5] net: mvneta: allocate TSO header DMA memory in chunks
    https://git.kernel.org/netdev/net-next/c/33f4cefb26e9

You are awesome, thank you!
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