ACK / APPLIED[E]: [SRU] [B/D/Unstable/OEM-B/OEM-OSP1-B] [PATCH 0/1] Intel ethernet I219 may wrongly detect connection speed as 10Mbps

Seth Forshee seth.forshee at
Wed Jul 17 16:27:58 UTC 2019

On Thu, Jul 11, 2019 at 05:43:15PM +0800, Kai-Heng Feng wrote:
> BugLink:
> [Impact]
> Intel I219 ethernet may wrongly detect 1Gbps network as 10Mbps after
> ethernet cable hotplugging.
> [Fix]
> Use delayed work before deciding the network speed.
> This essentially workarounds unreliable reading on MII_BMSR register.
> [Test]
> Before the patch the network operates at 10Mbps after cable gets
> plugged.
> With the fix, network always operates in 1Gbps.
> [Regression Potential]
> Low. It changes the watchdog task from timer to delayed work, the logic
> is essentially the same.

Positive testing, making its way upstream.

Acked-by: Seth Forshee <seth.forshee at>

Applied to eoan/master-next, thanks!

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