Chelsio Communications Terminator 6, Инструкция по установке и эксплуатации, Страница: 74 / 432

Chapter III. Virtual Function Network (vNIC)
Chelsio Unified Wire for Linux 74
Software/Driver Loading
3.1. Instantiate Virtual Functions (SR-IOV)
To instantiate Virtual Functions (VFs) on the host, run the following commands:
[root@host~]# modprobe cxgb4
[root@host~]# echo n >
/sys/class/net/ethX/device/driver/<bus_id>/sriov_numvfs
Here, ethX is the interface and n specifies the number of VFs to be instantiated per physical
function ( bus_id ). VFs can be instantiated only from PFs 0 - 3 of the Chelsio adapter. A maximum
of 64 virtual functions can be instantiated with 16 virtual functions per physical function.
Example : Instantiating 16 VFs on PF3 of Chelsio adapter.
Unload the vNIC driver on the host (if loaded):
[root@host~]# rmmod cxgb4vf
The virtual functions can now be assigned to virtual machines (guests).
3.2. Loading the Driver
[root@host~]# rmmod csiostor cxgb4i cxgbit iw_cxgb4 chcr cxgb4vf cxgb4
libcxgbi libcxgb
To get familiar with physical and virtual function terminologies, please refer the PCI
Express specification.
Note
Please ensure that all inbox drivers are unloaded before proceeding with
unified wire drivers.
Important