netdev - Re: Microchip net DSA with ptp4l getting tx_timeout failed msg using 6.3.12 kernel and KSZ9567 switch

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Date: Sat, 26 Aug 2023 14:43:04 +0300
From: Vladimir Oltean <olteanv@...il.com>
To: Brian Hutchinson <b.hutchman@...il.com>, Tristram.Ha@...rochip.com,
	Woojung.Huh@...rochip.com
Cc: Christian Eggers <ceggers@...i.de>, netdev@...r.kernel.org,
	arun.ramadoss@...rochip.com, rakesh.sankaranarayanan@...rochip.com
Subject: Re: Microchip net DSA with ptp4l getting tx_timeout failed msg using
 6.3.12 kernel and KSZ9567 switch

On Thu, Aug 24, 2023 at 03:03:32PM -0400, Brian Hutchinson wrote:
> Update.  Top posting because I think this is my issue.
> 
> I dug further into my problem.  I'm using E2E and it looks like the
> mainlined Microchip KSZ DSA PTP code is only supporting P2P.
> 
> The 5.10.69 kernel that I was first able to get working with
> Christian's early pre-mainlined patches had:
> 0016-net-dsa-microchip-ksz9477-add-E2E-support.patch
> 
> ... which gets into the "sticky" bits of why these patches weren't
> accepted in the first place due to some Microchip specific
> implementation if I recall correctly.
> 
> Regards,
> 
> Brian

+Tristram Ha, Woojung Huh