mlnx-ofed-4.9-driver-dct

This is our extension to the MLNX-OFED-4.9 driver, aiming to support dynamic connected transport in the kernel-space RDMA driver.

Tested platform:

• Software: ubuntu
• Hardware: ConnectX-4 NIC

Steps for build (Take ubuntu16.04 as an example)

First, we need the original driver, and install the default version on our machine.

wget https://www.mellanox.com/downloads/ofed/MLNX_OFED-4.9-3.1.5.0/MLNX_OFED_LINUX-4.9-3.1.5.0-ubuntu16.04-x86_64.tgz
tar zxf MLNX_OFED_LINUX-4.9-3.1.5.0-ubuntu16.04-x86_64.tgz
cd MLNX_OFED_LINUX-4.9-3.1.5.0-ubuntu16.04-x86_64 
sudo ./mlnxofedinstall
sudo /etc/init.d/openibd restart

Then, reboot your machine if no error prints.

sudo reboot -n

Afterwards, we can build our patch. Assuming we are in directory MLNX_OFED_LINUX-4.9-3.1.5.0-ubuntu16.04-x86_64 (see the first step).

cd src
tar zxf MLNX_OFED_SRC-4.9-3.1.5.0.tgz
mv MLNX_OFED_SRC-4.9-3.1.5.0/SOURCES/mlnx-ofed-kernel_4.9.orig.tar.gz PATH-to-REPO.
 cd $PATH-to-REPO$
./build.sh

Run ./build.sh, and follows the steps prompted by the commandline. ps: if the commandline prompts the patch name, than type any name is ok.

Trouble shooting

What if ib_dc_wr is not found?

• Please remove /usr/src/ofa_kernel/default (i.e. sudo rm -rf /usr/src/ofa_kernel/default), and reinstall the patch.