Re: [PATCH net v2] net: dsa: qca8k: reset cpu port on MTU change

Hello:

This patch was applied to netdev/net.git (master) by Jakub Kicinski kuba@kernel.org:

On Tue, 21 Jun 2022 17:11:22 +0200 you wrote:

It was discovered that the Documentation lacks of a fundamental detail on how to correctly change the MAX_FRAME_SIZE of the switch.

In fact if the MAX_FRAME_SIZE is changed while the cpu port is on, the switch panics and cease to send any packet. This cause the mgmt ethernet system to not receive any packet (the slow fallback still works) and makes the device not reachable. To recover from this a switch reset is required.

[...]

Here is the summary with links: - [net,v2] net: dsa: qca8k: reset cpu port on MTU change https://git.kernel.org/netdev/net/c/386228c694bf

You are awesome, thank you!