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Date:      Thu, 19 Jan 2017 10:30:58 +0000
From:      Edward Tomasz =?utf-8?Q?Napiera=C5=82a?= <trasz@FreeBSD.org>
To:        "Eugene M. Zheganin" <emz@norma.perm.ru>
Cc:        freebsd-net@FreeBSD.org, freebsd-stable <freebsd-stable@FreeBSD.org>
Subject:   Re: decent 40G network adapters
Message-ID:  <20170119103058.GA30694@brick>
In-Reply-To: <587F39E3.1060608@norma.perm.ru>
References:  <587F39E3.1060608@norma.perm.ru>

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On 0118T1448, 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 ?

I'd say Chelsio; it's very well supported, it's actively involved
in FreeBSD development, and there's hardware-specific iSCSI offload
for it (cxgbei).




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