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34 #ifndef EAL_PCI_INIT_H_
35 #define EAL_PCI_INIT_H_
37 #include <linux/version.h>
41 /** IO resource type: */
42 #define IORESOURCE_IO 0x00000100
43 #define IORESOURCE_MEM 0x00000200
46 * Helper function to map PCI resources right after hugepages in virtual memory
48 extern void *pci_map_addr;
49 void *pci_find_max_end_va(void);
51 /* parse one line of the "resource" sysfs file (note that the 'line'
54 int pci_parse_one_sysfs_resource(char *line, size_t len, uint64_t *phys_addr,
55 uint64_t *end_addr, uint64_t *flags);
57 int pci_uio_alloc_resource(struct rte_pci_device *dev,
58 struct mapped_pci_resource **uio_res);
59 void pci_uio_free_resource(struct rte_pci_device *dev,
60 struct mapped_pci_resource *uio_res);
61 int pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
62 struct mapped_pci_resource *uio_res, int map_idx);
64 int pci_uio_read_config(const struct rte_intr_handle *intr_handle,
65 void *buf, size_t len, off_t offs);
66 int pci_uio_write_config(const struct rte_intr_handle *intr_handle,
67 const void *buf, size_t len, off_t offs);
69 int pci_uio_ioport_map(struct rte_pci_device *dev, int bar,
70 struct rte_pci_ioport *p);
71 void pci_uio_ioport_read(struct rte_pci_ioport *p,
72 void *data, size_t len, off_t offset);
73 void pci_uio_ioport_write(struct rte_pci_ioport *p,
74 const void *data, size_t len, off_t offset);
75 int pci_uio_ioport_unmap(struct rte_pci_ioport *p);
79 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 10, 0)
80 #define RTE_PCI_MSIX_TABLE_BIR 0x7
81 #define RTE_PCI_MSIX_TABLE_OFFSET 0xfffffff8
82 #define RTE_PCI_MSIX_FLAGS_QSIZE 0x07ff
84 #define RTE_PCI_MSIX_TABLE_BIR PCI_MSIX_TABLE_BIR
85 #define RTE_PCI_MSIX_TABLE_OFFSET PCI_MSIX_TABLE_OFFSET
86 #define RTE_PCI_MSIX_FLAGS_QSIZE PCI_MSIX_FLAGS_QSIZE
89 /* access config space */
90 int pci_vfio_read_config(const struct rte_intr_handle *intr_handle,
91 void *buf, size_t len, off_t offs);
92 int pci_vfio_write_config(const struct rte_intr_handle *intr_handle,
93 const void *buf, size_t len, off_t offs);
95 int pci_vfio_ioport_map(struct rte_pci_device *dev, int bar,
96 struct rte_pci_ioport *p);
97 void pci_vfio_ioport_read(struct rte_pci_ioport *p,
98 void *data, size_t len, off_t offset);
99 void pci_vfio_ioport_write(struct rte_pci_ioport *p,
100 const void *data, size_t len, off_t offset);
101 int pci_vfio_ioport_unmap(struct rte_pci_ioport *p);
103 /* map/unmap VFIO resource prototype */
104 int pci_vfio_map_resource(struct rte_pci_device *dev);
105 int pci_vfio_unmap_resource(struct rte_pci_device *dev);
107 int pci_vfio_is_enabled(void);
111 #endif /* EAL_PCI_INIT_H_ */