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34 #ifndef EAL_PCI_INIT_H_
35 #define EAL_PCI_INIT_H_
47 * For multi-process we need to reproduce all PCI mappings in secondary
48 * processes, so save them in a tailq.
50 struct mapped_pci_resource {
51 TAILQ_ENTRY(mapped_pci_resource) next;
53 struct rte_pci_addr pci_addr;
56 struct pci_map maps[PCI_MAX_RESOURCE];
59 TAILQ_HEAD(mapped_pci_res_list, mapped_pci_resource);
60 extern struct mapped_pci_res_list *pci_res_list;
63 * Helper function to map PCI resources right after hugepages in virtual memory
65 extern void *pci_map_addr;
66 void *pci_find_max_end_va(void);
68 void *pci_map_resource(void *requested_addr, int fd, off_t offset,
71 /* map IGB_UIO resource prototype */
72 int pci_uio_map_resource(struct rte_pci_device *dev);
76 #define VFIO_MAX_GROUPS 64
78 int pci_vfio_enable(void);
79 int pci_vfio_is_enabled(void);
80 int pci_vfio_mp_sync_setup(void);
82 /* map VFIO resource prototype */
83 int pci_vfio_map_resource(struct rte_pci_device *dev);
84 int pci_vfio_get_group_fd(int iommu_group_fd);
85 int pci_vfio_get_container_fd(void);
88 * Function prototypes for VFIO multiprocess sync functions
90 int vfio_mp_sync_send_request(int socket, int req);
91 int vfio_mp_sync_receive_request(int socket);
92 int vfio_mp_sync_send_fd(int socket, int fd);
93 int vfio_mp_sync_receive_fd(int socket);
94 int vfio_mp_sync_connect_to_primary(void);
96 /* socket comm protocol definitions */
97 #define SOCKET_REQ_CONTAINER 0x100
98 #define SOCKET_REQ_GROUP 0x200
100 #define SOCKET_NO_FD 0x1
101 #define SOCKET_ERR 0xFF
104 * we don't need to store device fd's anywhere since they can be obtained from
105 * the group fd via an ioctl() call.
114 int vfio_container_fd;
115 int vfio_container_has_dma;
117 struct vfio_group vfio_groups[VFIO_MAX_GROUPS];
122 #endif /* EAL_PCI_INIT_H_ */