linux-kernel - Is it possible to undo the ixgbe device name change?

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Message-ID: <3452224.1745518016@warthog.procyon.org.uk>
Date: Thu, 24 Apr 2025 19:06:56 +0100
From: David Howells <dhowells@...hat.com>
To: Jedrzej Jagielski <jedrzej.jagielski@...el.com>
cc: dhowells@...hat.com, Przemek Kitszel <przemyslaw.kitszel@...el.com>,
    Tony Nguyen <anthony.l.nguyen@...el.com>,
    Paulo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
    linux-kernel@...r.kernel.org
Subject: Is it possible to undo the ixgbe device name change?

[resent with mailing list addresses fixes]

Hi,

With commit:

	a0285236ab93fdfdd1008afaa04561d142d6c276
	ixgbe: add initial devlink support

the name of the device that I see on my 10G ethernet card changes from enp1s0
to enp1s0np0.

This is a bit of a problem for my test box because I have Network Manager set
up static configuration for that enp1s0... which no longer exists when that
commit is applied.  I could change to enp1s0np0, but then this would no longer
exist if I want to test a kernel that doesn't have that commit applied.

If the name doesn't exist, booting pauses for about a minute while NM tries to
find it (probably a NM bug), so adding both names isn't an option either :-/

(I don't use DHCP for this adapter as it's directly wired to another test box)

Alternatively, as a compromise, might it be possible to omit the "np0" bit if
the adapter only has one port?

Thanks,
David