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34 #ifndef EAL_PCI_INIT_H_
35 #define EAL_PCI_INIT_H_
40 * Helper function to map PCI resources right after hugepages in virtual memory
42 extern void *pci_map_addr;
43 void *pci_find_max_end_va(void);
45 int pci_uio_alloc_resource(struct rte_pci_device *dev,
46 struct mapped_pci_resource **uio_res);
47 void pci_uio_free_resource(struct rte_pci_device *dev,
48 struct mapped_pci_resource *uio_res);
49 int pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
50 struct mapped_pci_resource *uio_res, int map_idx);
54 #define VFIO_MAX_GROUPS 64
56 int pci_vfio_enable(void);
57 int pci_vfio_is_enabled(void);
58 int pci_vfio_mp_sync_setup(void);
60 /* map VFIO resource prototype */
61 int pci_vfio_map_resource(struct rte_pci_device *dev);
62 int pci_vfio_get_group_fd(int iommu_group_fd);
63 int pci_vfio_get_container_fd(void);
66 * Function prototypes for VFIO multiprocess sync functions
68 int vfio_mp_sync_send_request(int socket, int req);
69 int vfio_mp_sync_receive_request(int socket);
70 int vfio_mp_sync_send_fd(int socket, int fd);
71 int vfio_mp_sync_receive_fd(int socket);
72 int vfio_mp_sync_connect_to_primary(void);
74 /* socket comm protocol definitions */
75 #define SOCKET_REQ_CONTAINER 0x100
76 #define SOCKET_REQ_GROUP 0x200
78 #define SOCKET_NO_FD 0x1
79 #define SOCKET_ERR 0xFF
82 * we don't need to store device fd's anywhere since they can be obtained from
83 * the group fd via an ioctl() call.
92 int vfio_container_fd;
93 int vfio_container_has_dma;
95 struct vfio_group vfio_groups[VFIO_MAX_GROUPS];
100 #endif /* EAL_PCI_INIT_H_ */