Debian 7 Infiniband

Infiniband configuration in Debian 7

Install the required software

apt-get -y install infiniband-diags ibutils libmthca ibverbs-utils libibumad libibmad libibverbs1 libmthca1 libmthca1-dbg libmthca-dev libopensm2 opensm

Load the kernel Modules

Load the proper linux modules. Edit the file /etc/modules and add the following lines

File: /etc/modules

#tarjeta Mellanox MT26438
mlx4_ib

#IP over IB
ib_ipoib

# Protocol modules
# Common modules
rdma_ucm
ib_umad
ib_uverbs

Then, execute the following commands

modprobe mlx4_ib modprobe ib_ipoib modprobe rdma_ucm modprobe ib_umad modprobe ib_uverbs

Subnetting Daemon Configuration

find the available ports in the card.

ibstat -p

The output are the identifiers of the ports. Example:

       0x78e7d10300244e95

Then, edit the file /etc/default/opensm

And change the following line

       PORTS=ALL

Like this

       PORTS="0x78e7d10300244e95"

Start The Subnetting Service

Start the opensm service

/etc/init.d/opensm start

Configure the Infiniband Interface

Edit the file /etc/network/interfaces and add the following lines

File: /etc/network/interfaces

        auto ib0
        iface ib0 inet static
        address 192.168.38.71
        netmask 255.255.255.0
        broadcast 192.168.38.255

Then, start the interface

ifup ib0

Test the interface using the following commands

ibstat ibhosts