netdev - Re: [EXT] Re: [PATCH net-next] sandlan: Add the sandlan virtual network interface

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Message-ID: <CALHoRjcwnHGWKDLD_RO5W2yDSTBbmPUq+eEczk7v5FjuhKikLw@mail.gmail.com>
Date:   Tue, 29 Nov 2022 09:54:29 -0800
From:   Steve Williams <steve.williams@...cruise.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     netdev@...r.kernel.org
Subject: Re: [EXT] Re: [PATCH net-next] sandlan: Add the sandlan virtual
 network interface

On Tue, Nov 22, 2022 at 12:09 PM Andrew Lunn <andrew@...n.ch> wrote:
>
> On Mon, Nov 21, 2022 at 06:59:11PM -0800, Steve Williams wrote:
> > I have had trouble with the veth driver not transparently passing the
> > full ethernet packets unaltered, and this is wreaking havoc with the
> > hanic driver that I have (and that I'm submitting separately). That,
> > and veth nodes only come in pairs, whereas with sandlan I can make
> > more complex LANs and that allows me to emulate more complex
> > situations. But fair point, and I am looking more closely at figuring
> > out exactly what the veth driver is doing to my packets.
>
> If there is a real problem with veth, please describe it, so we can
> fix the bugs. We don't add new emulators because of bugs in the
> existing system.

In light of the feedback I received here, I revisited the issue; and
was able to get the veth driver to work after all, at least for
regression tests of the hanic driver. I can't seem to reproduce the
issue I thought I was having. So that kills one motivation for the
sandlan driver, at least for me.

-- 

Stephen Williams

Senior Software Engineer

Cruise

-- 

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