User Manual

ManualsBrandsAsus ManualsServer AccessoriesPEM-FDR

100

Driver FeaturesRev 2.1-1.0.6

Mellanox Technologies

The example above loads the driver with 5 VFs (num_vfs). The standard use of a VF is a single VF

per a single VM. However, the number of VFs varies upon the working mode requirements.

The protocol types are:

• Port 1 = IB

• Port 2 = Ethernet

Parameter Recommended Value

num_vfs • If absent, or zero: no VFs will be available

• If its value is a single number in the range of 0-63: The driver

will enable the

num_vfs VFs on the HCA and this will be

applied to all ConnectX® HCAs on the host.

• If its format is a string: The string specifies the num_vfs

parameter separately per installed HCA.

• The string format is: "bb:dd.f-v,bb:dd.f-v,…"

• bb:dd.f = bus:device.function of the PF of the HCA

• v = number of VFs to enable for that HCA

For example:

• num_vfs=5 - The driver will enable 5 VFs on the HCA and

this will be applied to all ConnectX® HCAs on the host

• num_vfs=00:04.0-5,00:07.0-8 - The driver will enable 5

VFs on the HCA positioned in BDF 00:04.0 and 8 on the one in

00:07.0)

Note: PFs not included in the above list will not have SR-

IOV enabled.

port_type_array Specifies the protocol type of the ports. It is either one array

of 2 port types

't1,t2' for all devices or list of BDF to

port_type_array 'bb:dd.f-t1;t2,...'. (string)

Valid port types: 1-ib, 2-eth, 3-auto, 4-N/A

If only a single port is available, use the N/A port type for

port2 (e.g '1,4').

probe_vf

• If absent or zero: no VF interfaces will be loaded in the Hyper-

visor/host

• If num0_vfs is a number in the range of 1-63, the driver run-

ning on the Hypervisor will itself activate that number of VFs.

All these VFs will run on the Hypervisor. This number will

apply to all ConnectX® HCAs on that host.

• If its format is a string: the string specifies the probe_vf

parameter separately per installed HCA.

• The string format is: "bb:dd.f-v,bb:dd.f-v,…

• bb:dd.f = bus:device.function of the PF of the HCA

• v = number of VFs to use in the PF driver for that HCA

For example:

• probe_vfs=5 - The PF driver will activate 5 VFs on the HCA

and this will be applied to all ConnectX® HCAs on the host

• probe_vfs=00:04.0-5,00:07.0-8 - The PF driver will

activate 5 VFs on the HCA positioned in BDF 00:04.0 and 8

for the one in 00:07.0)

Note: PFs not included in the above list will not activate any

of their VFs in the PF driver.