[ofa-general] Infiniband Driver support for Mellanox HCA in Centos 5.3

[Tziporet Koren]

Ashwath Narasimhan wrote:
> Hi,
> I am a linux newbie and I am trying to run ipoib on linux Centos 5.3. 
> My software driver does not recognize the hardware even though it is 
> connected.
>
> 1. I am using the following infiniband HCA
> $ my prompt> lspci |grep Mellanox
> 01:00.0 InfiniBand: Mellanox Technologies MT25208 InfiniHost III Ex 
> (Tavor compatibility mode) (rev a0)
>
> 2. I installed the infiniband utilities using ---> yum groupinstall 
> 'OpenFabrics Enterprise Distribution'
>
> 3. I then started the driver in this way -->
>
> [root at localhost ]# /etc/init.d/openibd start
> Loading OpenIB kernel modules:                             [  OK  ]
> [root at localhost ]# ibv_devinfo
> libibverbs: Warning: no userspace device-specific driver found for 
> /sys/class/infiniband_verbs/uverbs0
> No IB devices found
>
> As you can see it says No IB devices found. I am able to detect the 
> hardware using Windows, however I am not able to detect the same using 
> Linux. Please guide me as to what I can do.
Please send output of /var/log/messages
Also output of lsmod to see which modules are loaded
>
> 4. One more Question, As I dug into to the release notes, I find that 
> Centos 5.3 is not supported in the distribution of OFED-1.4. Is this 
> correct? Does this mean I have to downgrade to centos 5.2?
>
> 5. What could be the time frame by which Centos 5.3 is also supported?
>
Which OFED version are you using?
We added RHEL 5.3 support in OFED 1.4.1, and usually when things works 
on it then it will work on CenOS too. Its just that CentOS 5.3 was not 
tested but it should work.

Tziporet