PCI_IOV_INIT(9)        FreeBSD Kernel Developer's Manual       PCI_IOV_INIT(9)

NAME
     PCI_IOV_INIT - enable SR-IOV on a PF device

SYNOPSIS
     #include <sys/bus.h>
     #include <machine/stdarg.h>
     #include <sys/nv.h>
     #include <dev/pci/pci_iov.h>

     int
     PCI_IOV_INIT(device_t dev, uint16_t num_vfs, const nvlist_t *pf_config);

DESCRIPTION
     The PCI_IOV_INIT() method is called by the PCI Single-Root I/O
     Virtualization (SR-IOV) infrastucture when the user requests that SR-IOV
     be enabled on a Physical Function (PF).  The number of Virtual Functions
     (VFs) that will be created is passed to this method in the num_vfs
     argument.

     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).

RETURN VALUES
     Returns 0 on success, otherwise an appropriate error is returned.  If
     this method returns an error then the SR-IOV configuration will be
     aborted and no VFs will be created.

SEE ALSO
     nv(9), pci(9), PCI_IOV_ADD_VF(9), pci_iov_schema(9), PCI_IOV_UNINIT(9)

AUTHORS
     This manual page was written by Ryan Stone <rstone@FreeBSD.org>.

FreeBSD 13.1-RELEASE-p6          May 28, 2015          FreeBSD 13.1-RELEASE-p6