netdev - Re: STMMAC Ethernet Driver support

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Message-ID: <20231208101216.3fca85b1@kernel.org>
Date: Fri, 8 Dec 2023 10:12:16 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Richard Tresidder <rtresidd@...ctromag.com.au>
Cc: netdev@...r.kernel.org
Subject: Re: STMMAC Ethernet Driver support

On Fri, 8 Dec 2023 14:03:25 +0800 Richard Tresidder wrote:
> I've looked through the diffset 6.3.3 >>> 6.6.3 on the driver
> drivers\net\ethernet\stmicro\stmmac
> But nothing is jumping out at me.
> 
> I could use a pointer as to where to look to start tracing this.

Bisection is good way to zero in on the bad change if you don't
have much hard to rebase code in your tree.

Otherwise you can dump the relevant registers and the descriptors
(descriptors_status file in debugfs) and see if driver is doing
anything differently on the newer kernel?