Manual Pages  — PCI_IOV_INIT

If the driver requested device-specific PF configuration parameters via a PF schema in its call to pci_iov_attach(9), those parameters will be available in the pf_config argument. All configuration parameters that were either set as required parameters or that had a default value set in the PF schema are guaranteed to be present in pf_config. Configuration parameters that were neither set as required nor were given a default value are optional and may or may not be present in pf_config. pf_config will not contain any configuration parameters that were not specified in the PF schema. All configuration parameters will have the correct type and are in the range of valid values specified in the schema.

If this method returns successfully, then this method will not be called again on the same device until after a call to PCI_IOV_UNINIT(9).