From owner-freebsd-net@freebsd.org  Wed Jan 18 09:48:26 2017
Return-Path: <owner-freebsd-net@freebsd.org>
Delivered-To: freebsd-net@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1B9F4CB4492;
 Wed, 18 Jan 2017 09:48:26 +0000 (UTC)
 (envelope-from emz@norma.perm.ru)
Received: from elf.hq.norma.perm.ru (mail.norma.perm.ru [IPv6:2a00:7540:1::5])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256
 bits)) (Client CN "mail.norma.perm.ru",
 Issuer "Vivat-Trade UNIX Root CA" (not verified))
 by mx1.freebsd.org (Postfix) with ESMTPS id 6AF181C83;
 Wed, 18 Jan 2017 09:48:24 +0000 (UTC)
 (envelope-from emz@norma.perm.ru)
Received: from bsdrookie.norma.com. ([IPv6:fd00::7af])
 by elf.hq.norma.perm.ru (8.15.2/8.15.2) with ESMTPS id v0I9mKKS035238
 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO);
 Wed, 18 Jan 2017 14:48:20 +0500 (YEKT)
 (envelope-from emz@norma.perm.ru)
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=norma.perm.ru; s=key;
 t=1484732900; bh=VNCZm8mpxxUO8e/n8/e8MCAokyjSuC05SxtB9+PPF7o=;
 h=To:From:Subject:Date;
 b=cdaYlZsapSJ5URuQSkwWeyu2Ih7hSraiaFthPCby4dD5sLzp2w/r8EVsqJ3clIlWV
 wGt+7cFzHk36I8QKudvXpyEnxy4GwhVYgAV2t+8fmTWoqS0Qc2ZGha3gbCgng3RgDL
 nh90FHLVrlF4VyUfRlM269LR+pMBX6dnGBQ5jgcM=
To: freebsd-net@FreeBSD.org, freebsd-stable <freebsd-stable@FreeBSD.org>
From: "Eugene M. Zheganin" <emz@norma.perm.ru>
Subject: decent 40G network adapters
Message-ID: <587F39E3.1060608@norma.perm.ru>
Date: Wed, 18 Jan 2017 14:48:19 +0500
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101
 Thunderbird/38.7.0
MIME-Version: 1.0
Content-Type: text/plain; charset=koi8-r
Content-Transfer-Encoding: quoted-printable
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net/>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 18 Jan 2017 09:48:26 -0000

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 ?

Thanks.
Eugene.