centos man page for pci_sriov_set_totalvfs

PCI_SRIOV_SET_TOTALV(9) 					Hardware Interfaces					   PCI_SRIOV_SET_TOTALV(9)

NAME
       pci_sriov_set_totalvfs - - reduce the TotalVFs available

SYNOPSIS
       int pci_sriov_set_totalvfs(struct pci_dev * dev, u16 numvfs);

ARGUMENTS
       dev
	   the PCI PF device

       numvfs
	   number that should be used for TotalVFs supported

DESCRIPTION
       Should be called from PF driver's probe routine with device's mutex held.

       Returns 0 if PF is an SRIOV-capable device and value of numvfs valid. If not a PF return -ENOSYS; if numvfs is invalid return -EINVAL; if
       VFs already enabled, return -EBUSY.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   PCI_SRIOV_SET_TOTALV(9)