tree a26dc79db184a6977919909c3cc2dd653efe83f3
parent 1789382a72a537447d65ea4131d8bcc1ad85ce7b
author Donald Dutile <ddutile@redhat.com> 1352146837 -0500
committer Bjorn Helgaas <bhelgaas@google.com> 1352522259 -0700

PCI: Provide method to reduce the number of total VFs supported

Some implementations of SRIOV provide a capability structure
value of TotalVFs that is greater than what the software can support.
Provide a method to reduce the capability structure reported value
to the value the driver can support.
This ensures sysfs reports the current capability of the system,
hardware and software.
Example for its use: igb & ixgbe -- report 8 & 64 as TotalVFs,
but drivers only support 7 & 63 maximum.

Signed-off-by: Donald Dutile <ddutile@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>