pci_sriov_set_totalvfs (9) Linux Manual Page
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.