APPLIED[U]: [PATCH 0/2][SRU][H][I][OEM-5.13][OEM-5.14] e1000e extremly slow

Andrea Righi andrea.righi at canonical.com
Tue Oct 26 11:28:39 UTC 2021


On Tue, Sep 28, 2021 at 11:49:10AM +0800, AceLan Kao wrote:
> From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>
> 
> BugLink: https://bugs.launchpad.net/bugs/1930754
> 
> 
> [Impact]
> e1000e on TGP PCH encounters a network speed issue that rx speed is below
> 1MB/s
> 
> [Fix]
> Intel provides 2 patches to fix this
> https://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=263466
> 
> [Test]
> Verified by our Dell and Lenovo platforms and the bug reporter.
> 
> [Where problems could occur]
> The fix only applies to e1000e with TGP PCH, and add a flag
> "E1000_FFLT_DBG_DONT_GATE_WAKE_DMA_CLK". The impact should be minimized
> and should not lead to other regressions.

Applied to unstable/5.15 with some adjustments:
 - these patches now are applied to linux-next, updated cherry-picked
   line with linux-next sha1
 - updated subject to match linux-next patch subject
 - dropped UBUNTU: SAUCE

-Andrea



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