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From: Jakub Kicinski <kuba@kernel.org>
To: Hannes Reinecke <hare@suse.de>
Cc: Chuck Lever <chuck.lever@oracle.com>,
	netdev@vger.kernel.org, linux-nfs@vger.kernel.org,
	linux-nvme@lists.infradead.org, linux-cifs@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, ak@tempesta-tech.com,
	borisp@nvidia.com, simo@redhat.com
Subject: Re: [PATCH RFC 4/5] net/tls: Add support for PF_TLSH (a TLS handshake listener)
Date: Tue, 26 Apr 2022 07:55:00 -0700	[thread overview]
Message-ID: <20220426075500.34776cd5@kernel.org> (raw)
In-Reply-To: <66077b73-c1a4-d2ae-c8e4-3e19e9053171@suse.de>

On Tue, 26 Apr 2022 11:43:37 +0200 Hannes Reinecke wrote:
> > Create the socket in user space, do all the handshakes you need there
> > and then pass it to the kernel.  This is how NBD + TLS works.  Scales
> > better and requires much less kernel code.
> >   
> But we can't, as the existing mechanisms (at least for NVMe) creates the 
> socket in-kernel.
> Having to create the socket in userspace would require a completely new 
> interface for nvme and will not be backwards compatible.
> Not to mention having to rework the nvme driver to accept sockets from 
> userspace instead of creating them internally.
> 
> With this approach we can keep existing infrastructure, and can get a 
> common implementation for either transport.

You add 1.5kLoC and require running a user space agent, surely you're
adding new interfaces and are not backward-compatible already.

I don't understand your argument, maybe you could rephrase / dumb it
down for me?

  parent reply	other threads:[~2022-04-26 14:55 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-18 16:49 [PATCH RFC 0/5] Implement a TLS handshake upcall Chuck Lever
2022-04-18 16:49 ` [PATCH RFC 1/5] net: Add distinct sk_psock field Chuck Lever
2022-04-21  7:35   ` Hannes Reinecke
2022-07-13  4:46     ` Hawkins Jiawei
2022-07-13  4:46       ` Hawkins Jiawei
2022-04-18 16:49 ` [PATCH RFC 2/5] tls: build proto after context has been initialized Chuck Lever
2022-04-25 17:11   ` Jakub Kicinski
2022-04-25 17:51     ` Chuck Lever III
2022-05-20 16:39   ` Chuck Lever III
2022-04-18 16:49 ` [PATCH RFC 3/5] net/tls: Add an AF_TLSH address family Chuck Lever
2022-04-21  7:35   ` Hannes Reinecke
2022-04-18 16:49 ` [PATCH RFC 4/5] net/tls: Add support for PF_TLSH (a TLS handshake listener) Chuck Lever
2022-04-21  7:36   ` Hannes Reinecke
2022-04-25 17:14   ` Jakub Kicinski
2022-04-26  9:43     ` Hannes Reinecke
2022-04-26 14:29       ` Sagi Grimberg
2022-04-26 15:02         ` Jakub Kicinski
2022-04-26 15:58           ` Hannes Reinecke
2022-04-27  0:03             ` Jakub Kicinski
2022-04-27 15:24               ` Chuck Lever III
2022-04-28  7:26               ` Hannes Reinecke
2022-04-28 13:30                 ` Jakub Kicinski
2022-04-28 13:51                   ` Hannes Reinecke
2022-04-28 14:09                     ` Benjamin Coddington
2022-04-28 21:08                       ` Jakub Kicinski
2022-05-24 10:05                         ` [ovs-dev] " Ilya Maximets
2022-04-26 14:55       ` Jakub Kicinski [this message]
2022-04-26 13:48     ` Chuck Lever III
2022-04-26 14:55       ` Jakub Kicinski
2022-04-26 15:58         ` Chuck Lever III
2022-04-26 23:47           ` Jakub Kicinski
2022-04-27 14:42             ` Chuck Lever III
2022-04-27 23:53               ` Jakub Kicinski
2022-04-28  1:29                 ` Chuck Lever III
2022-04-28 21:08                   ` Jakub Kicinski
2022-04-28 21:54                     ` Chuck Lever III
2022-04-28  8:49   ` Boris Pismenny
2022-04-28 13:12     ` Simo Sorce
2022-04-29 15:19       ` Chuck Lever III
2022-04-28 15:24     ` Chuck Lever III
2022-04-29  6:25       ` Hannes Reinecke
2022-04-18 16:49 ` [PATCH RFC 5/5] net/tls: Add observability for AF_TLSH sockets Chuck Lever
2022-04-21  7:36   ` Hannes Reinecke

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