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Date:      Mon, 22 Jan 2018 22:11:10 +0000
From:      "Somayajulu, David" <David.Somayajulu@cavium.com>
To:        Meny Yossefi <menyy@mellanox.com>, "freebsd-net@FreeBSD.org" <freebsd-net@FreeBSD.org>, "freebsd-drivers@freebsd.org" <freebsd-drivers@freebsd.org>
Subject:   RE: Questions on OFED in FreeBSD
Message-ID:  <BY2PR07MB1474AC2E231E94FF80961351EEEC0@BY2PR07MB1474.namprd07.prod.outlook.com>
In-Reply-To: <VI1PR0501MB2863B6C46311FD43ABB94F7AC3EA0@VI1PR0501MB2863.eurprd05.prod.outlook.com>
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Hi Meny,
Does OFED in FreeBSD currently support NvMe over Fabrics ?
Thanks
David S.

-----Original Message-----
From: Meny Yossefi [mailto:menyy@mellanox.com]=20
Sent: Tuesday, January 16, 2018 5:27 AM
To: Somayajulu, David <David.Somayajulu@cavium.com>; freebsd-net@FreeBSD.or=
g
Subject: RE: Questions on OFED in FreeBSD

Hi David,=20

I think there's a misunderstanding here. Let me try and clear it.

First OFED version introduced in FreeBSD9 was indeed ofed-1.5.3.=20
Future updates were based on Linux kernel and not the OpenFabrics versionin=
g system.

FreeBSD11 should currently have something similar to Linux v3.10 if I'm not=
 mistaken.

Last big update in FreeBSD12 was based on Linux v4.9.
Hopefully we can MFC it completely to FreeBSD11-STABLE.


Last but not least -  Yes, HEAD supports RoCEv2.

Meny



Hi Meny,

Thanks a lot for the reply and the information.

I have couple of additional questions.
>  4.  Am I correct that the OFED version on FreeBSD 11 is 1.5.3 ?
>[MY] No. We did an upgrade in FreeBSD11 a while back. If I'm not mistaken,=
 FreeBSD11's OFED is currently based on version 2.0+

As per https://emea01.safelinks.protection.outlook.com/?url=3Dhttp%3A%2F%2F=
downloads.openfabrics.org%2FOFED%2F&data=3D02%7C01%7Cfreebsd-commits-tracke=
r%40mellanox.com%7Ca9533172edf24431e8a308d55c3f128f%7Ca652971c7d2e4d9ba6a4d=
149256f461b%7C0%7C1%7C636516348321604768&sdata=3Dit2anKZ%2FjPBnUJl%2FH3cfaN=
15h%2Fps12F4CR%2B3zETyNIE%3D&reserved=3D0  the version following OFED versi=
on 1.5.4 is 3.2. Just curious what 2.0+ version is ?

Am I correct that HEAD supports RoCE v2 ?

Thanks
David S. (davidcs@freebsd.org)

-----Original Message-----
From: Meny Yossefi [mailto:menyy@mellanox.com]
Sent: Sunday, January 14, 2018 2:11 AM
To: Somayajulu, David <David.Somayajulu@cavium.com>; freebsd-net@freebsd.or=
g
Subject: RE: Questions on OFED in FreeBSD

Hi David,

Answers embedded below.

-Meny

-----Original Message-----
From: owner-freebsd-net@freebsd.org [mailto:owner-freebsd-net@freebsd.org] =
On Behalf Of Somayajulu, David
Sent: Tuesday, January 09, 2018 8:08 PM
To: freebsd-net@freebsd.org
Subject: Questions on OFED in FreeBSD

Hi,

  1.  Is RoCE v2 supported of FreeBSD 11 release or 11_stable ?
 [MY] Not currently, though we do have plans adding it in the near future
  2.  How does one figure out the OFED version in a FreeBSD kernel?
[MY] Unfortunately, OFED version is not maintained. Some files do state a v=
ersion, but I wouldn't trust that too much
  3.  Since OFED on HEAD is synced to Linux 4.9 in kernel.org, I presume th=
at it is OFED version 4.8. Am I correct ?
[MY] 4.9+
  4.  Am I correct that the OFED version on FreeBSD 11 is 1.5.3 ?
[MY] No. We did an upgrade in FreeBSD11 a while back. If I'm not mistaken, =
FreeBSD11's OFED is currently based on version 2.0+
  5.  Are there any plans to backport OFED from HEAD to Stable_11?
[MY] Yes.

Thanks
David S. (davidcs@freebsd.org)


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