diff options
| author | Shijith Thotton <sthotton@marvell.com> | 2025-01-03 18:31:36 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2025-01-27 17:39:25 +0300 |
| commit | 1629ee1078fc2ac38e324adb0e50c8b04ec714a2 (patch) | |
| tree | 1063ab1807c4739c08dd0069fe2e135525bad69e | |
| parent | 59e457122982534f1c0fc1171056d0d8b1ed9f68 (diff) | |
| download | linux-1629ee1078fc2ac38e324adb0e50c8b04ec714a2.tar.xz | |
virtio-pci: define type and header for PCI vendor data
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@redhat.com>
Signed-off-by: Shijith Thotton <sthotton@marvell.com>
Message-Id: <20250103153226.1933479-3-sthotton@marvell.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
| -rw-r--r-- | include/uapi/linux/virtio_pci.h | 14 |
1 files changed, 14 insertions, 0 deletions
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 */ |