diff options
Diffstat (limited to 'include/uapi/linux/virtio_pci.h')
| -rw-r--r-- | include/uapi/linux/virtio_pci.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h index f703afc7ad31..a8208492e822 100644 --- a/include/uapi/linux/virtio_pci.h +++ b/include/uapi/linux/virtio_pci.h @@ -166,6 +166,20 @@ struct virtio_pci_common_cfg { __le32 queue_used_hi; /* read-write */ }; +/* + * Warning: do not use sizeof on this: use offsetofend for + * specific fields you need. + */ +struct virtio_pci_modern_common_cfg { + struct virtio_pci_common_cfg cfg; + + __le16 queue_notify_data; /* read-write */ + __le16 queue_reset; /* read-write */ + + __le16 admin_queue_index; /* read-only */ + __le16 admin_queue_num; /* read-only */ +}; + /* Fields in VIRTIO_PCI_CAP_PCI_CFG: */ struct virtio_pci_cfg_cap { struct virtio_pci_cap cap; @@ -204,7 +218,72 @@ struct virtio_pci_cfg_cap { #define VIRTIO_PCI_COMMON_Q_USEDHI 52 #define VIRTIO_PCI_COMMON_Q_NDATA 56 #define VIRTIO_PCI_COMMON_Q_RESET 58 +#define VIRTIO_PCI_COMMON_ADM_Q_IDX 60 +#define VIRTIO_PCI_COMMON_ADM_Q_NUM 62 #endif /* VIRTIO_PCI_NO_MODERN */ +/* Admin command status. */ +#define VIRTIO_ADMIN_STATUS_OK 0 + +/* Admin command opcode. */ +#define VIRTIO_ADMIN_CMD_LIST_QUERY 0x0 +#define VIRTIO_ADMIN_CMD_LIST_USE 0x1 + +/* Admin command group type. */ +#define VIRTIO_ADMIN_GROUP_TYPE_SRIOV 0x1 + +/* Transitional device admin command. */ +#define VIRTIO_ADMIN_CMD_LEGACY_COMMON_CFG_WRITE 0x2 +#define VIRTIO_ADMIN_CMD_LEGACY_COMMON_CFG_READ 0x3 +#define VIRTIO_ADMIN_CMD_LEGACY_DEV_CFG_WRITE 0x4 +#define VIRTIO_ADMIN_CMD_LEGACY_DEV_CFG_READ 0x5 +#define VIRTIO_ADMIN_CMD_LEGACY_NOTIFY_INFO 0x6 + +struct virtio_admin_cmd_hdr { + __le16 opcode; + /* + * 1 - SR-IOV + * 2-65535 - reserved + */ + __le16 group_type; + /* Unused, reserved for future extensions. */ + __u8 reserved1[12]; + __le64 group_member_id; +}; + +struct virtio_admin_cmd_status { + __le16 status; + __le16 status_qualifier; + /* Unused, reserved for future extensions. */ + __u8 reserved2[4]; +}; + +struct virtio_admin_cmd_legacy_wr_data { + __u8 offset; /* Starting offset of the register(s) to write. */ + __u8 reserved[7]; + __u8 registers[]; +}; + +struct virtio_admin_cmd_legacy_rd_data { + __u8 offset; /* Starting offset of the register(s) to read. */ +}; + +#define VIRTIO_ADMIN_CMD_NOTIFY_INFO_FLAGS_END 0 +#define VIRTIO_ADMIN_CMD_NOTIFY_INFO_FLAGS_OWNER_DEV 0x1 +#define VIRTIO_ADMIN_CMD_NOTIFY_INFO_FLAGS_OWNER_MEM 0x2 + +#define VIRTIO_ADMIN_CMD_MAX_NOTIFY_INFO 4 + +struct virtio_admin_cmd_notify_info_data { + __u8 flags; /* 0 = end of list, 1 = owner device, 2 = member device */ + __u8 bar; /* BAR of the member or the owner device */ + __u8 padding[6]; + __le64 offset; /* Offset within bar. */ +}; + +struct virtio_admin_cmd_notify_info_result { + struct virtio_admin_cmd_notify_info_data entries[VIRTIO_ADMIN_CMD_MAX_NOTIFY_INFO]; +}; + #endif |