Re: [ewg] OFED release with RoCE v2 support

2016-05-18 Thread Woodruff, Robert J 

>Do they send out the bi-weekly ewg conference call details in the ewg mailing 
>list?

Yes, usually a couple days before the meetings. They happen bi-weekly on 
Mondays at 9:00am PST.
The next one will be next Monday, May 23. Arlin will send out the agenda later 
this week. 


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Re: [ewg] OFED release with RoCE v2 support

2016-05-18 Thread Ameen Rahman 

> -Original Message-
> From: Woodruff, Robert J [mailto:robert.j.woodr...@intel.com]
> Sent: Tuesday, May 17, 2016 7:23 AM
> To: Ameen Rahman ; linux-
> r...@vger.kernel.org
> Cc: ewg@lists.openfabrics.org
> Subject: RE: OFED release with RoCE v2 support
> 
> >When can we expect to see an OFED release with RoCE v2 support?
> 
> Since the RoCEv2 support has now been accepted upstream (in 4.6 I believe),
> it will be in the next major OFED release which we will start working on
> following the completion of OFED-3.18-2.  Work on that next OFED should
> start in a few weeks as OFED-3.18-2 is already at RC1.

Thanks for the quick response.  

Do we have any rough estimate on when the next major release of  OFED will GA?
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Re: [ewg] OFED release with RoCE v2 support

2016-05-18 Thread Doug Ledford 
On 05/18/2016 11:22 AM, Woodruff, Robert J wrote:
>> In this case, I expect you guys to be hurting hard when you try to do all 
>> the backports.  The problem is that in the last year we have made lots >of 
>> changes that depend on upstream kernel improvements both inside the RDMA 
>> stack and out.  I suspect this backport cycle may be worse >than those in 
>> the past.  But I could be wrong...
> 
> Yes, and of course it depends on which distro kernel we attempt to backport 
> to. For the later model RHEL 7.x and SLES 12 kernels, it may not
> be as bad, if those kernels have picked up the required upstream kernel 
> improvements. I am however worried that it might be too hard to try to 
> backport to a RHEL 6.x series kernel. We'll have to evaluate that once we 
> start work on the next major OFED. 

I would not be surprised in the least if backports to an EL6 kernel are
a simple no-go for current upstream code.



-- 
Doug Ledford 
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Re: [ewg] OFED release with RoCE v2 support

2016-05-18 Thread Woodruff, Robert J 
>In this case, I expect you guys to be hurting hard when you try to do all the 
>backports.  The problem is that in the last year we have made lots >of changes 
>that depend on upstream kernel improvements both inside the RDMA stack and 
>out.  I suspect this backport cycle may be worse >than those in the past.  But 
>I could be wrong...

Yes, and of course it depends on which distro kernel we attempt to backport to. 
For the later model RHEL 7.x and SLES 12 kernels, it may not
be as bad, if those kernels have picked up the required upstream kernel 
improvements. I am however worried that it might be too hard to try to backport 
to a RHEL 6.x series kernel. We'll have to evaluate that once we start work on 
the next major OFED. 



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Re: [ewg] OFED release with RoCE v2 support

2016-05-18 Thread Doug Ledford 
On 05/18/2016 10:24 AM, Woodruff, Robert J wrote:
> 
>> Thanks for the quick response.  
> 
>> Do we have any rough estimate on when the next major release of  OFED will 
>> GA?
> 
> In the past, when we move up to a new kernel version, it usually takes a fair 
> amount of time for people to develop all the backports 
> to the various Linux distro kernels.  From past experience, I would estimate 
> at least 6 months, which would put the release
> at the end of the year or so. If you want to keep closer tabs on the 
> activities, you can subscribe to the ewg email list and/or attend the
> bi-weekly ewg conference calls. 

In this case, I expect you guys to be hurting hard when you try to do
all the backports.  The problem is that in the last year we have made
lots of changes that depend on upstream kernel improvements both inside
the RDMA stack and out.  I suspect this backport cycle may be worse than
those in the past.  But I could be wrong...

-- 
Doug Ledford 
  GPG KeyID: 0E572FDD




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Re: [ewg] OFED release with RoCE v2 support

2016-05-18 Thread Woodruff, Robert J 

>Thanks for the quick response.  

>Do we have any rough estimate on when the next major release of  OFED will GA?

In the past, when we move up to a new kernel version, it usually takes a fair 
amount of time for people to develop all the backports 
to the various Linux distro kernels.  From past experience, I would estimate at 
least 6 months, which would put the release
at the end of the year or so. If you want to keep closer tabs on the 
activities, you can subscribe to the ewg email list and/or attend the
bi-weekly ewg conference calls. 
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Re: [ewg] OFED release with RoCE v2 support

2016-05-17 Thread Woodruff, Robert J 
>When can we expect to see an OFED release with RoCE v2 support? 

Since the RoCEv2 support has now been accepted upstream (in 4.6 I believe), it 
will be in the next major OFED release which 
we will start working on following the completion of OFED-3.18-2.  Work on that 
next OFED should start in a few weeks as OFED-3.18-2
is already at RC1. 
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