netdev - Re: [PATCH iwl-net v1] igb: Fix not clearing TimeSync interrupts for 82580

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Message-ID: <Zrb0wdmIsksG38Uc@hoboy.vegasvil.org>
Date: Fri, 9 Aug 2024 22:04:01 -0700
From: Richard Cochran <richardcochran@...il.com>
To: Vinicius Costa Gomes <vinicius.gomes@...el.com>
Cc: intel-wired-lan@...ts.osuosl.org, daiweili@...il.com,
	sasha.neftin@...el.com, kurt@...utronix.de,
	anthony.l.nguyen@...el.com, netdev@...r.kernel.org,
	Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH iwl-net v1] igb: Fix not clearing TimeSync interrupts for
 82580

On Fri, Aug 09, 2024 at 05:23:02PM -0700, Vinicius Costa Gomes wrote:
> It was reported that 82580 NICs have a hardware bug that makes it
> necessary to write into the TSICR (TimeSync Interrupt Cause) register
> to clear it.

Bug, or was it a feature?

Or IOW, maybe i210 changed the semantics of the TSICR?

And what about the 82576?

Thanks,
Richard