netdev - Re: [PATCH net-next] net/smc: add support for netdevice in containers.

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Message-ID: <76a74084-a900-d559-1f63-deff84e5848a@linux.ibm.com>
Date: Tue, 26 Sep 2023 13:14:04 +0200
From: Alexandra Winter <wintera@...ux.ibm.com>
To: Leon Romanovsky <leon@...nel.org>,
        Albert Huang <huangjie.albert@...edance.com>
Cc: Karsten Graul <kgraul@...ux.ibm.com>, Wenjia Zhang
 <wenjia@...ux.ibm.com>,
        Jan Karcher <jaka@...ux.ibm.com>,
        "D. Wythe" <alibuda@...ux.alibaba.com>,
        Tony Lu <tonylu@...ux.alibaba.com>, Wen Gu <guwen@...ux.alibaba.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, linux-s390@...r.kernel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        RDMA mailing list <linux-rdma@...r.kernel.org>,
        Jason Gunthorpe <jgg@...dia.com>
Subject: Re: [PATCH net-next] net/smc: add support for netdevice in
 containers.



On 26.09.23 12:48, Leon Romanovsky wrote:
> This patch made me wonder, why doesn't SMC use RDMA-CM like all other
> in-kernel ULPs which work over RDMA?
> 
> Thanks

The idea behind SMC is that it should look an feel to the applications
like TCP sockets. So for connection management it uses TCP over IP;
RDMA is just used for the data transfer.