[nvme-fabrics]Fabrics over ROCEv2

[Majd Dibbiny]

> On Jun 24, 2016, at 5:32 PM, Marta Rybczynska <mrybczyn at kalray.eu> wrote:
> 
> 
> 
> ----- Le 24 Juin 16, à 15:40, Majd Dibbiny majd at mellanox.com a écrit :
> 
>>> On Jun 24, 2016, at 2:02 PM, Marta Rybczynska <mrybczyn at kalray.eu> wrote:
>>> 
>>> Hello Christoph,
>>> Thanks for the answer. I do indeed have more general problems with
>>> ROCEv2: ib_send_bw works fine for ROCEv1 but not with ROCEv2. I'm
>>> going to follow with the Mellanox persons as it seems to be mlx4 or
>>> configuration-related.
>> Hi Marta,
>> 
>> Do you run with RDMA-CM?
>> Can you please provide the command lines you use and the GIDs table?
> 
> Hello Majd,
> Yes, it's using RDMA-CM. I have re-connected the network and the
This might be related to the fact that you need to configure the RDMA CM mode using configfs. (By default it's V1) 
> machines have 
> rebooted (unrelated panic) and now it's working fine. If I'm able to reproduce 
> the problem, I will keep you updated.
> 
> Thanks for the help all,
> Marta