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Subject: Re: decent 40G network adapters
To: "Eugene M. Zheganin" <emz@norma.perm.ru>, freebsd-net@FreeBSD.org,
 freebsd-stable <freebsd-stable@FreeBSD.org>,
 Meny Yossefi <menyy@mellanox.com>
References: <587F39E3.1060608@norma.perm.ru>
From: Hans Petter Selasky <hps@selasky.org>
Message-ID: <59b43877-5194-20bc-27b5-486f7f449cf7@selasky.org>
Date: Wed, 18 Jan 2017 10:51:36 +0100
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On 01/18/17 10:48, Eugene M. Zheganin wrote:
> Hi.
>
> Could someone recommend a decent 40Gbit adapter that are proven to be
> working under FreeBSD ? The intended purpose - iSCSI traffic, not much
> pps, but rates definitely above 10G. I've tried Supermicro-manufactured
> Intel XL710 ones (two boards, different servers - same sad story:
> packets loss, server unresponsive, spikes), seems like they have a
> problem in a driver (or firmware), and though Intel support states this
> is because the Supermicro tampered with the adapter, I'm still
> suspicious about ixl(4). I've also seen in the ML a guy reported the
> exact same problem with ixl(4) as I have found.
>
> So, what would you say ? Chelsio ?
>

Hi,

I think also the Mellanox, mlx4 and mlx5 drivers will support this. Are 
you using infiniband or TCP for backend?

--HPS