linux-kernel - Re: [PATCH net-next v1 0/5] net: stmmac: FPE via ethtool + tc

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Message-ID: <20240801161726.mhyv6af43ync7q56@skbuf>
Date: Thu, 1 Aug 2024 19:17:26 +0300
From: Vladimir Oltean <olteanv@...il.com>
To: Furong Xu <0x1207@...il.com>
Cc: Andrew Lunn <andrew@...n.ch>, "David S. Miller" <davem@...emloft.net>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Jose Abreu <joabreu@...opsys.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Joao Pinto <jpinto@...opsys.com>, netdev@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	xfr@...look.com, rock.xu@....com
Subject: Re: [PATCH net-next v1 0/5] net: stmmac: FPE via ethtool + tc

On Thu, Aug 01, 2024 at 07:02:24PM +0300, Vladimir Oltean wrote:
> Hi Furong,
> 
> On Wed, Jul 31, 2024 at 06:43:11PM +0800, Furong Xu wrote:
> > Move the Frame Preemption(FPE) over to the new standard API which uses
> > ethtool-mm/tc-mqprio/tc-taprio.
> 
> Thanks for working on this! I will review it soon.
> 
> On the DWMAC 5.10a that you've tested, were other patches also necessary?
> What is the status of the kselftest? Does it pass? Can you post its
> output as part of the cover letter?

Can you additionally test FPE across a suspend/resume cycle, in 2 cases:
- FPE was enabled before suspend, make sure it runs again automatically
  after resume, and that there are no deadlock issues (to be confirmed
  with CONFIG_PROVE_LOCKING)
- FPE was disabled before suspend, make sure it can be enabled successfully
  after resume