netdev - Re: [devel-ipsec] [RFC ipsec-next] Add IP-TFS mode to xfrm

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Date: Sun, 12 Nov 2023 21:31:49 -0500
From: Christian Hopps <chopps@...n.net>
To: Antony Antony <antony@...nome.org>
Cc: Christian Hopps <chopps@...pps.org>, devel@...ux-ipsec.org,
 netdev@...r.kernel.org, Christian Hopps <chopps@...n.net>
Subject: Re: [devel-ipsec] [RFC ipsec-next] Add IP-TFS mode to xfrm

Antony Antony <antony@...nome.org> writes:

> On Fri, Nov 10, 2023 at 06:37:11AM -0500, Christian Hopps via Devel wrote:
>> From: Christian Hopps <chopps@...n.net>
>>
>> This patchset adds a new xfrm mode implementing on-demand IP-TFS. IP-TFS
>> (AggFrag encapsulation) has been standardized in RFC9347.
>>
>> Link: https://www.rfc-editor.org/rfc/rfc9347.txt
>
> It would great to have details which parts of the RFC is supported in this
> patch series.

I'll add the new extra text from the Kconfig help text in the next patch set. Here it is now though:

	  Information on the IP-TFS/AGGFRAG encapsulation can be found
	  in RFC 9347. This feature supports demand driven (i.e.,
	  non-constant send rate) IP-TFS to take advantage of the
	  AGGFRAG ESP payload encapsulation. This payload type
	  supports aggregation and fragmentation of the inner IP
	  packet stream which in turn yields higher small-packet
	  bandwidth as well as reducing MTU/PMTU issues. Congestion
	  control is unimplementated as the send rate is demand driven
	  rather than constant.

Thanks!
Chris.

>
> Such as : Non-Congestion-Controlled ...
>
>> In order to allow loading this fucntionality as a module a set of callbacks
>> xfrm_mode_cbs has been added to xfrm as well.
>> --
>> Devel mailing list
>> Devel@...ux-ipsec.org
>> https://linux-ipsec.org/mailman/listinfo/devel

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