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34 #ifndef EAL_PCI_INIT_H_
35 #define EAL_PCI_INIT_H_
39 /** IO resource type: */
40 #define IORESOURCE_IO 0x00000100
41 #define IORESOURCE_MEM 0x00000200
44 * Helper function to map PCI resources right after hugepages in virtual memory
46 extern void *pci_map_addr;
47 void *pci_find_max_end_va(void);
49 /* parse one line of the "resource" sysfs file (note that the 'line'
52 int pci_parse_one_sysfs_resource(char *line, size_t len, uint64_t *phys_addr,
53 uint64_t *end_addr, uint64_t *flags);
55 int pci_uio_alloc_resource(struct rte_pci_device *dev,
56 struct mapped_pci_resource **uio_res);
57 void pci_uio_free_resource(struct rte_pci_device *dev,
58 struct mapped_pci_resource *uio_res);
59 int pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
60 struct mapped_pci_resource *uio_res, int map_idx);
62 int pci_uio_read_config(const struct rte_intr_handle *intr_handle,
63 void *buf, size_t len, off_t offs);
64 int pci_uio_write_config(const struct rte_intr_handle *intr_handle,
65 const void *buf, size_t len, off_t offs);
67 int pci_uio_ioport_map(struct rte_pci_device *dev, int bar,
68 struct rte_pci_ioport *p);
69 void pci_uio_ioport_read(struct rte_pci_ioport *p,
70 void *data, size_t len, off_t offset);
71 void pci_uio_ioport_write(struct rte_pci_ioport *p,
72 const void *data, size_t len, off_t offset);
73 int pci_uio_ioport_unmap(struct rte_pci_ioport *p);
77 #define VFIO_MAX_GROUPS 64
79 int pci_vfio_enable(void);
80 int pci_vfio_is_enabled(void);
81 int pci_vfio_mp_sync_setup(void);
83 /* access config space */
84 int pci_vfio_read_config(const struct rte_intr_handle *intr_handle,
85 void *buf, size_t len, off_t offs);
86 int pci_vfio_write_config(const struct rte_intr_handle *intr_handle,
87 const void *buf, size_t len, off_t offs);
89 int pci_vfio_ioport_map(struct rte_pci_device *dev, int bar,
90 struct rte_pci_ioport *p);
91 void pci_vfio_ioport_read(struct rte_pci_ioport *p,
92 void *data, size_t len, off_t offset);
93 void pci_vfio_ioport_write(struct rte_pci_ioport *p,
94 const void *data, size_t len, off_t offset);
95 int pci_vfio_ioport_unmap(struct rte_pci_ioport *p);
97 /* map VFIO resource prototype */
98 int pci_vfio_map_resource(struct rte_pci_device *dev);
99 int pci_vfio_get_group_fd(int iommu_group_fd);
100 int pci_vfio_get_container_fd(void);
103 * Function prototypes for VFIO multiprocess sync functions
105 int vfio_mp_sync_send_request(int socket, int req);
106 int vfio_mp_sync_receive_request(int socket);
107 int vfio_mp_sync_send_fd(int socket, int fd);
108 int vfio_mp_sync_receive_fd(int socket);
109 int vfio_mp_sync_connect_to_primary(void);
111 /* socket comm protocol definitions */
112 #define SOCKET_REQ_CONTAINER 0x100
113 #define SOCKET_REQ_GROUP 0x200
114 #define SOCKET_OK 0x0
115 #define SOCKET_NO_FD 0x1
116 #define SOCKET_ERR 0xFF
119 * we don't need to store device fd's anywhere since they can be obtained from
120 * the group fd via an ioctl() call.
129 int vfio_container_fd;
130 int vfio_container_has_dma;
132 struct vfio_group vfio_groups[VFIO_MAX_GROUPS];
137 #endif /* EAL_PCI_INIT_H_ */