PCI: add SR-IOV API for Physical Function driver

Add or remove the Virtual Function when the SR-IOV is enabled or
disabled by the device driver. This can happen anytime rather than
only at the device probe stage.

Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index f4fc10fc5872..0f1c7d103509 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -209,6 +209,8 @@ struct pci_sriov {
         u32 cap;                /* SR-IOV Capabilities */
         u16 ctrl;               /* SR-IOV Control */
         u16 total;              /* total VFs associated with the PF */
+        u16 initial;            /* initial VFs associated with the PF */
+        u16 nr_virtfn;          /* number of VFs available */
         u16 offset;             /* first VF Routing ID offset */
         u16 stride;             /* following VF stride */
         u32 pgsz;               /* page size for BAR alignment */