[PATCH net-next v3] net: airoha_eth: increase max MTU to 9220 for DSA jumbo frames

patchwork-bot+netdevbpf at kernel.org patchwork-bot+netdevbpf at kernel.org
Tue Jan 20 18:40:44 PST 2026


Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba at kernel.org>:

On Mon, 19 Jan 2026 13:06:58 +0530 you wrote:
> The industry standard jumbo frame MTU is 9216 bytes. When using the DSA
> subsystem, a 4-byte tag is added to each Ethernet frame.
> 
> Increase AIROHA_MAX_MTU to 9220 bytes (9216 + 4) so that users can set a
> standard 9216-byte MTU on DSA ports.
> 
> The underlying hardware supports significantly larger frame sizes
> (approximately 16K). However, the maximum MTU is limited to 9220 bytes
> for now, as this is sufficient to support standard jumbo frames and does
> not incur additional memory allocation overhead.
> 
> [...]

Here is the summary with links:
  - [net-next,v3] net: airoha_eth: increase max MTU to 9220 for DSA jumbo frames
    https://git.kernel.org/netdev/net-next/c/6406fc709ace

You are awesome, thank you!
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