linux-kernel - Re: [PATCH v1] um: drivers: mark non-vector net transports as obsolete

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Message-ID: <CAFLxGvwHALbhE8XVWCijx25n-LpysYR=fH6WnHADn_=c_BZqow@mail.gmail.com>
Date:   Sun, 19 Jan 2020 22:37:17 +0100
From:   Richard Weinberger <richard.weinberger@...il.com>
To:     Brendan Higgins <brendanhiggins@...gle.com>
Cc:     Jeff Dike <jdike@...toit.com>, Richard Weinberger <richard@....at>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        davidgow@...gle.com, linux-um <linux-um@...ts.infradead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        "Berg, Johannes" <johannes.berg@...el.com>
Subject: Re: [PATCH v1] um: drivers: mark non-vector net transports as obsolete

On Tue, Dec 10, 2019 at 11:34 PM Brendan Higgins
<brendanhiggins@...gle.com> wrote:
>
> UML_NET_VECTOR now supports filters compiled with pcap outside of UML;
> it also supports: EoGRE, EoL2TPv3, RAW (+/- BPF), TAP and BESS.
>
> While vector drivers are not 1:1 replacements for the existing drivers,
> you can achieve the same topologies and the same connectivity at much
> higher performance (2.5 to 9 Gbit on mid-range Ryzen desktop) - the old
> drivers test out in the 500Mbit range on the same hardware.
>
> For all these reasons, the non-vector based transports are now
> unnecessary, and some, most notably pcap and vde are maintenance
> burdens. Thus, it makes sense to at least start thinking about removing
> the non-vector transports, so for now, mark them as obsolete.
>
> Link: https://lore.kernel.org/lkml/15f048d3-07ab-61c1-c6e0-0712e626dd33@cambridgegreys.com/T/#u
> Suggested-by: Anton Ivanov <anton.ivanov@...bridgegreys.com>
> Signed-off-by: Brendan Higgins <brendanhiggins@...gle.com>
> ---
>
> I pretty much stole the commit message from Anton's comments in the
> above link. Anton, if you would like me to credit you as a co-developer,
> feel free to respond with the tags and I will include them on the next
> revision.
>
> ---
>  arch/um/drivers/Kconfig | 81 +++++++++++++++++++++--------------------
>  1 file changed, 41 insertions(+), 40 deletions(-)

Applied. Thanks.

-- 
Thanks,
//richard