User Manual

Features Overview and ConfigurationRev 2.3-1.0.1

Mellanox Technologies

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Step 2. Enable "Intel Virtualization Technology".

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

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

mand line load parameter for the Linux kernel.

For example, to Intel systems, add:

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

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

file, otherwise SR-IOV cannot be loaded.

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

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

SR-IOV can be enabled and managed by using one of the following methods:

• Run the mlxconfig tool and set the SRIOV_EN parameter to “1” without re-burning the firmware

SRIOV_EN = 1

For further information, please refer to section “mlxconfig - Changing Device Configuration Tool”

in the MFT User Manual (www.mellanox.com > Products > Software > Firmware Tools).

• Burn firmware with SR-IOV support where the number of virtual functions (VFs) will be set to 16

--enable-sriov

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

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