User Manual

Rev 2.0-3.0.0

Mellanox Technologies

Step 2. Enable "Intel Virtualization Technology".

Step 3. Install the hypervisor that supports SR-IOV.

Step 4. Depending on your system, update the /boot/grub/grub.conf file to include a similar command

line load parameter for the Linux kernel.

For example, to Intel systems, add:

Step 5. Install the MLNX_OFED driver for Linux that supports SR-IOV.

Step 6. Verify the HCA is configured to support SR-IOV.

• Verify in the [HCA] section the following field appears

HCA parameters can be configured during firmware update using the

mlnxofedinstall script and

running the

'--enable-sriov' and '--total-vfs <0-63>' installation parameters.

default=0

timeout=5

splashimage=(hd0,0)/grub/splash.xpm.gz

hiddenmenu

title Red Hat Enterprise Linux Server (2.6.32-36.x86-645)

root (hd0,0)

kernel /vmlinuz-2.6.32-36.x86-64 ro root=/dev/VolGroup00/LogVol00 rhgb quiet

intel_iommu=on

initrd /initrd-2.6.32-36.x86-64.img

1. Please make sure the parameter "intel_iommu=on" exists when updating the /boot/grub/grub.conf

file, otherwise SR-IOV cannot be loaded.

[root@selene ~]# mstflint -dev <PCI Device> dc

[HCA]

num_pfs = 1

total_vfs = 5

sriov_en = true

1. If the fields in the example above do not appear in the [HCA] section, meaning SR-IOV is not supported in the used INI.

2. If SR-IOV is supported, to enable if it is not, it is sufficient to set “sriov_en = true” in the INI.