netdev - RE: [RFC PATCH 00/13] Ultra Ethernet driver introduction

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Message-ID:
 <CY8PR12MB7195F4D67BE6D9A970044572DCD72@CY8PR12MB7195.namprd12.prod.outlook.com>
Date: Sun, 9 Mar 2025 03:21:37 +0000
From: Parav Pandit <parav@...dia.com>
To: Leon Romanovsky <leon@...nel.org>, Nikolay Aleksandrov
	<nikolay@...abrica.net>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
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	<kuba@...nel.org>, "pabeni@...hat.com" <pabeni@...hat.com>, Jason Gunthorpe
	<jgg@...dia.com>
Subject: RE: [RFC PATCH 00/13] Ultra Ethernet driver introduction



> From: Leon Romanovsky <leon@...nel.org>
> Sent: Sunday, March 9, 2025 12:17 AM
> 
> On Fri, Mar 07, 2025 at 01:01:50AM +0200, Nikolay Aleksandrov wrote:
> > Hi all,
> 
> <...>
> 
> > Ultra Ethernet is a new RDMA transport.
> 
> Awesome, and now please explain why new subsystem is needed when
> drivers/infiniband already supports at least 5 different RDMA transports
> (OmniPath, iWARP, Infiniband, RoCE v1 and RoCE v2).
> 
6th transport is drivers/infiniband/hw/efa (srd).

> Maybe after this discussion it will be very clear that new subsystem is needed,
> but at least it needs to be stated clearly.
> 
> An please CC RDMA maintainers to any Ultra Ethernet related discussions as it
> is more RDMA than Ethernet.
> 
> Thanks