PCI: initialize and release SR-IOV capability
If a device has the SR-IOV capability, initialize it (set the ARI
Capable Hierarchy in the lowest numbered PF if necessary; calculate
the System Page Size for the VF MMIO, probe the VF Offset, Stride
and BARs). A lock for the VF bus allocation is also initialized if
a PF is the lowest numbered PF.
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>
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 1f6c5dd..8ce2f2d 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -93,6 +93,12 @@
/* #6: expansion ROM resource */
PCI_ROM_RESOURCE,
+ /* device specific resources */
+#ifdef CONFIG_PCI_IOV
+ PCI_IOV_RESOURCES,
+ PCI_IOV_RESOURCE_END = PCI_IOV_RESOURCES + PCI_SRIOV_NUM_BARS - 1,
+#endif
+
/* resources assigned to buses behind the bridge */
#define PCI_BRIDGE_RESOURCE_NUM 4
@@ -180,6 +186,7 @@
struct pcie_link_state;
struct pci_vpd;
+struct pci_sriov;
/*
* The pci_dev structure is used to describe PCI devices.
@@ -257,6 +264,7 @@
unsigned int is_managed:1;
unsigned int is_pcie:1;
unsigned int state_saved:1;
+ unsigned int is_physfn:1;
pci_dev_flags_t dev_flags;
atomic_t enable_cnt; /* pci_enable_device has been called */
@@ -270,6 +278,9 @@
struct list_head msi_list;
#endif
struct pci_vpd *vpd;
+#ifdef CONFIG_PCI_IOV
+ struct pci_sriov *sriov; /* SR-IOV capability related */
+#endif
};
extern struct pci_dev *alloc_pci_dev(void);