The SRIOV Config tab allows you to specify the SR-IOV capability for a physical function (PF). The information is used to construct the SR-IOV capability structure. Virtual functions do not exist on power-on. It is the function of the system software to discover and enable VFs based on system capability. The VF support is discovered by scanning the SR-IOV capability structure for each PF.
The SRIOV Config Tab is shown in the following figure.
- General SRIOV Config
- This value specifies the offset of the first PF with at least one enabled VF. When ARI is enabled, allowed value is 'd4 or 'd64, and the total number of VF in all PFs plus this field must not be greater than 256. When ARI is disabled, this field will be set to 1 to support 1PFplus 7VF non-ARI SRIOV configurations only.
- Number of PFx VFs
- Indicates the number of virtual functions associated to the physical function. A total of 252 virtual functions are available that can be flexibly used across the four physical functions.
- VF Device ID
- Indicates the 16-bit Device ID for all virtual functions associated with the physical function.