Hi Theo :)

Ok sure, I will put on my cape-of-courage and start reading the source.. I
may be some time!

On Wed, Sep 29, 2021 at 1:56 PM Theo de Raadt <dera...@openbsd.org> wrote:

> We tend to keep our driver manual pages without detailed promises.
> They do ethernet, they do it best effort, etc.
>
> What you want to know can be found by reading the source, or the
> commit logs.  Since this is a locally written driver, the code is
> surprisingly approachable.
>
> Andrew Lemin <andrew.le...@gmail.com> wrote:
>
> > Hi. I hope everyone is well and having a great day :)
> >
> > Just a quick question about the mcx (Mellanox 5th generation Ethernet
> > device) drivers
> > https://man.openbsd.org/mcx.4
> >
> > The man page says nothing more than it supports;
> > ConnectX-4 Lx EN
> > ConnectX-4 EN
> > ConnectX-5 EN
> > ConnectX-6 EN
> >
> > I am looking for some clarity on what features and performance
> > characteristics mcx boasts?
> >
> > For example are the following basic hardware features supported by this
> > driver?
> > IPv4 receive IP/TCP/UDP checksum offload
> > IPv4 transmit TCP/UDP checksum offload
> > VLAN tag insertion and stripping
> > interrupt coalescing
> >
> > And what other features does it support?
> >
> > I also came across a comment in some forum a while back (so high quality
> > information 😉) that mentioned Mellanox drivers in OpenBSD are SMP safe
> and
> > so not giant-locked. Is this true?
> >
> > Thanks, Andy,
>

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