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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

April 2019 Kernel Hackers Manual 4.9.