Added macro definition for VIRTIO_PCI_CAP_VENDOR_CFG to identify the PCI
vendor data type in the virtio_pci_cap structure. Defined a new struct
virtio_pci_vndr_data for the vendor data capability header as per the
specification.
Acked-by: Jason Wang <jasowang@xxxxxxxxxx>
Signed-off-by: Shijith Thotton <sthotton@xxxxxxxxxxx>
---
include/uapi/linux/virtio_pci.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h
index 1beb317df1b9..8549d4571257 100644
--- a/include/uapi/linux/virtio_pci.h
+++ b/include/uapi/linux/virtio_pci.h
@@ -116,6 +116,8 @@
#define VIRTIO_PCI_CAP_PCI_CFG 5
/* Additional shared memory capability */
#define VIRTIO_PCI_CAP_SHARED_MEMORY_CFG 8
+/* PCI vendor data configuration */
+#define VIRTIO_PCI_CAP_VENDOR_CFG 9
/* This is the PCI capability header: */
struct virtio_pci_cap {
@@ -130,6 +132,18 @@ struct virtio_pci_cap {
__le32 length; /* Length of the structure, in bytes. */
};
+/* This is the PCI vendor data capability header: */
+struct virtio_pci_vndr_data {
+ __u8 cap_vndr; /* Generic PCI field: PCI_CAP_ID_VNDR */
+ __u8 cap_next; /* Generic PCI field: next ptr. */
+ __u8 cap_len; /* Generic PCI field: capability length */
+ __u8 cfg_type; /* Identifies the structure. */
+ __u16 vendor_id; /* Identifies the vendor-specific format. */
+ /* For Vendor Definition */
+ /* Pads structure to a multiple of 4 bytes */
+ /* Reads must not have side effects */
+};
+
struct virtio_pci_cap64 {
struct virtio_pci_cap cap;
__le32 offset_hi; /* Most sig 32 bits of offset */
--
2.25.1
