PCI: handle SR-IOV Virtual Function Migration

Add or remove a Virtual Function after receiving a Migrate In or Out
Request.

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, 4 insertions, 0 deletions

diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 0f1c7d103509..22dcfdb75d91 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -1,6 +1,8 @@
 #ifndef DRIVERS_PCI_H
 #define DRIVERS_PCI_H
 
+#include <linux/workqueue.h>
+
 #define PCI_CFG_SPACE_SIZE      256
 #define PCI_CFG_SPACE_EXP_SIZE  4096
 
@@ -218,6 +220,8 @@ struct pci_sriov {
         struct pci_dev *dev;    /* lowest numbered PF */
         struct pci_dev *self;   /* this PF */
         struct mutex lock;      /* lock for VF bus */
+        struct work_struct mtask; /* VF Migration task */
+        u8 __iomem *mstate;     /* VF Migration State Array */
 };
 
 #ifdef CONFIG_PCI_IOV