netdev - Re: [PATCH net-next v9 2/8] net: phy: Support speed selection for PHY loopback

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Message-ID: <20250304081502.7f670381@kernel.org>
Date: Tue, 4 Mar 2025 08:15:02 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: linux@...linux.org.uk
Cc: Andrew Lunn <andrew@...n.ch>, Gerhard Engleder
 <gerhard@...leder-embedded.com>, hkallweit1@...il.com, davem@...emloft.net,
 edumazet@...gle.com, pabeni@...hat.com, netdev@...r.kernel.org,
 ltrager@...a.com, Jijie Shao <shaojijie@...wei.com>
Subject: Re: [PATCH net-next v9 2/8] net: phy: Support speed selection for
 PHY loopback

On Tue, 4 Mar 2025 14:20:02 +0100 Andrew Lunn wrote:
> The current IOCTL interface is definitely too limiting for what Lee
> will need. So there is a netlink API coming soon. Should Gerhard and
> Jijie try to shoehorn what they want into the current IOCTL handler,
> or help design the netlink API? How can selftest.c be taken apart and
> put back together to make it more useful? And should the high level
> API for PRBS be exported through it, making it easier to use for any
> netdev?

As we think about this let's keep in mind that selftests are generic,
not PHY-centric. Even if we can pass all link settings in there are
other innumerable params people may want in the future.