1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2010-2014 Intel Corporation
5 #ifndef EAL_PCI_INIT_H_
6 #define EAL_PCI_INIT_H_
10 /** IO resource type: */
11 #define IORESOURCE_IO 0x00000100
12 #define IORESOURCE_MEM 0x00000200
15 * Helper function to map PCI resources right after hugepages in virtual memory
17 extern void *pci_map_addr;
18 void *pci_find_max_end_va(void);
20 /* parse one line of the "resource" sysfs file (note that the 'line'
23 int pci_parse_one_sysfs_resource(char *line, size_t len, uint64_t *phys_addr,
24 uint64_t *end_addr, uint64_t *flags);
26 int pci_uio_alloc_resource(struct rte_pci_device *dev,
27 struct mapped_pci_resource **uio_res);
28 void pci_uio_free_resource(struct rte_pci_device *dev,
29 struct mapped_pci_resource *uio_res);
30 int pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
31 struct mapped_pci_resource *uio_res, int map_idx);
33 int pci_uio_read_config(const struct rte_intr_handle *intr_handle,
34 void *buf, size_t len, off_t offs);
35 int pci_uio_write_config(const struct rte_intr_handle *intr_handle,
36 const void *buf, size_t len, off_t offs);
38 int pci_uio_ioport_map(struct rte_pci_device *dev, int bar,
39 struct rte_pci_ioport *p);
40 void pci_uio_ioport_read(struct rte_pci_ioport *p,
41 void *data, size_t len, off_t offset);
42 void pci_uio_ioport_write(struct rte_pci_ioport *p,
43 const void *data, size_t len, off_t offset);
44 int pci_uio_ioport_unmap(struct rte_pci_ioport *p);
48 #ifdef PCI_MSIX_TABLE_BIR
49 #define RTE_PCI_MSIX_TABLE_BIR PCI_MSIX_TABLE_BIR
51 #define RTE_PCI_MSIX_TABLE_BIR 0x7
54 #ifdef PCI_MSIX_TABLE_OFFSET
55 #define RTE_PCI_MSIX_TABLE_OFFSET PCI_MSIX_TABLE_OFFSET
57 #define RTE_PCI_MSIX_TABLE_OFFSET 0xfffffff8
60 #ifdef PCI_MSIX_FLAGS_QSIZE
61 #define RTE_PCI_MSIX_FLAGS_QSIZE PCI_MSIX_FLAGS_QSIZE
63 #define RTE_PCI_MSIX_FLAGS_QSIZE 0x07ff
66 /* access config space */
67 int pci_vfio_read_config(const struct rte_intr_handle *intr_handle,
68 void *buf, size_t len, off_t offs);
69 int pci_vfio_write_config(const struct rte_intr_handle *intr_handle,
70 const void *buf, size_t len, off_t offs);
72 int pci_vfio_ioport_map(struct rte_pci_device *dev, int bar,
73 struct rte_pci_ioport *p);
74 void pci_vfio_ioport_read(struct rte_pci_ioport *p,
75 void *data, size_t len, off_t offset);
76 void pci_vfio_ioport_write(struct rte_pci_ioport *p,
77 const void *data, size_t len, off_t offset);
78 int pci_vfio_ioport_unmap(struct rte_pci_ioport *p);
80 /* map/unmap VFIO resource prototype */
81 int pci_vfio_map_resource(struct rte_pci_device *dev);
82 int pci_vfio_unmap_resource(struct rte_pci_device *dev);
84 int pci_vfio_is_enabled(void);
88 #endif /* EAL_PCI_INIT_H_ */