linux-kernel - Re: [PATCH net-next] net: mctp: Expose transport binding identifier via IFLA attribute

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Message-ID: <20241107204157.683bca11@kernel.org>
Date: Thu, 7 Nov 2024 20:41:57 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Khang Nguyen <khangng@...amperecomputing.com>
Cc: Jeremy Kerr <jk@...econstruct.com.au>, Matt Johnston
 <matt@...econstruct.com.au>, Andrew Lunn <andrew+netdev@...n.ch>, "David S.
 Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Paolo
 Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 ampere-linux-kernel@...ts.amperecomputing.com, Phong Vo
 <phong@...amperecomputing.com>, Thang Nguyen
 <thang@...amperecomputing.com>, Khanh Pham <khpham@...erecomputing.com>,
 Phong Vo <pvo@...erecomputing.com>, Quan Nguyen
 <quan@...amperecomputing.com>, Chanh Nguyen <chanh@...amperecomputing.com>,
 Thu Nguyen <thu@...amperecomputing.com>, Hieu Le
 <hieul@...erecomputing.com>, openbmc@...ts.ozlabs.org,
 patches@...erecomputing.com
Subject: Re: [PATCH net-next] net: mctp: Expose transport binding identifier
 via IFLA attribute

On Tue,  5 Nov 2024 14:19:15 +0700 Khang Nguyen wrote:
> However, we currently have no means to get this information from MCTP
> links.

I'm not opposed to the netlink attribute, but to be clear this info 
is indirectly available in sysfs, right? We link the netdev to 
the parent device so the type of /sys/class/net/$your_ifc/device
should reveal what the transport is?