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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 void *pci_map_resource(void *requested_addr, int fd, off_t offset,
46 size_t size, int additional_flags);
48 /* map IGB_UIO resource prototype */
49 int pci_uio_map_resource(struct rte_pci_device *dev);
51 void pci_unmap_resource(void *requested_addr, size_t size);
53 #ifdef RTE_LIBRTE_EAL_HOTPLUG
54 /* unmap IGB_UIO resource prototype */
55 void pci_uio_unmap_resource(struct rte_pci_device *dev);
56 #endif /* RTE_LIBRTE_EAL_HOTPLUG */
60 #define VFIO_MAX_GROUPS 64
62 int pci_vfio_enable(void);
63 int pci_vfio_is_enabled(void);
64 int pci_vfio_mp_sync_setup(void);
66 /* map VFIO resource prototype */
67 int pci_vfio_map_resource(struct rte_pci_device *dev);
68 int pci_vfio_get_group_fd(int iommu_group_fd);
69 int pci_vfio_get_container_fd(void);
72 * Function prototypes for VFIO multiprocess sync functions
74 int vfio_mp_sync_send_request(int socket, int req);
75 int vfio_mp_sync_receive_request(int socket);
76 int vfio_mp_sync_send_fd(int socket, int fd);
77 int vfio_mp_sync_receive_fd(int socket);
78 int vfio_mp_sync_connect_to_primary(void);
80 /* socket comm protocol definitions */
81 #define SOCKET_REQ_CONTAINER 0x100
82 #define SOCKET_REQ_GROUP 0x200
84 #define SOCKET_NO_FD 0x1
85 #define SOCKET_ERR 0xFF
88 * we don't need to store device fd's anywhere since they can be obtained from
89 * the group fd via an ioctl() call.
98 int vfio_container_fd;
99 int vfio_container_has_dma;
101 struct vfio_group vfio_groups[VFIO_MAX_GROUPS];
106 #endif /* EAL_PCI_INIT_H_ */