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_
12 /** IO resource type: */
13 #define IORESOURCE_IO 0x00000100
14 #define IORESOURCE_MEM 0x00000200
17 * Helper function to map PCI resources right after hugepages in virtual memory
19 extern void *pci_map_addr;
20 void *pci_find_max_end_va(void);
22 /* parse one line of the "resource" sysfs file (note that the 'line'
25 int pci_parse_one_sysfs_resource(char *line, size_t len, uint64_t *phys_addr,
26 uint64_t *end_addr, uint64_t *flags);
28 int pci_uio_alloc_resource(struct rte_pci_device *dev,
29 struct mapped_pci_resource **uio_res);
30 void pci_uio_free_resource(struct rte_pci_device *dev,
31 struct mapped_pci_resource *uio_res);
32 int pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
33 struct mapped_pci_resource *uio_res, int map_idx);
35 int pci_uio_read_config(const struct rte_intr_handle *intr_handle,
36 void *buf, size_t len, off_t offs);
37 int pci_uio_write_config(const struct rte_intr_handle *intr_handle,
38 const void *buf, size_t len, off_t offs);
40 int pci_uio_ioport_map(struct rte_pci_device *dev, int bar,
41 struct rte_pci_ioport *p);
42 void pci_uio_ioport_read(struct rte_pci_ioport *p,
43 void *data, size_t len, off_t offset);
44 void pci_uio_ioport_write(struct rte_pci_ioport *p,
45 const void *data, size_t len, off_t offset);
46 int pci_uio_ioport_unmap(struct rte_pci_ioport *p);
50 #ifdef PCI_MSIX_TABLE_BIR
51 #define RTE_PCI_MSIX_TABLE_BIR PCI_MSIX_TABLE_BIR
53 #define RTE_PCI_MSIX_TABLE_BIR 0x7
56 #ifdef PCI_MSIX_TABLE_OFFSET
57 #define RTE_PCI_MSIX_TABLE_OFFSET PCI_MSIX_TABLE_OFFSET
59 #define RTE_PCI_MSIX_TABLE_OFFSET 0xfffffff8
62 #ifdef PCI_MSIX_FLAGS_QSIZE
63 #define RTE_PCI_MSIX_FLAGS_QSIZE PCI_MSIX_FLAGS_QSIZE
65 #define RTE_PCI_MSIX_FLAGS_QSIZE 0x07ff
68 /* access config space */
69 int pci_vfio_read_config(const struct rte_intr_handle *intr_handle,
70 void *buf, size_t len, off_t offs);
71 int pci_vfio_write_config(const struct rte_intr_handle *intr_handle,
72 const void *buf, size_t len, off_t offs);
74 int pci_vfio_ioport_map(struct rte_pci_device *dev, int bar,
75 struct rte_pci_ioport *p);
76 void pci_vfio_ioport_read(struct rte_pci_ioport *p,
77 void *data, size_t len, off_t offset);
78 void pci_vfio_ioport_write(struct rte_pci_ioport *p,
79 const void *data, size_t len, off_t offset);
80 int pci_vfio_ioport_unmap(struct rte_pci_ioport *p);
82 /* map/unmap VFIO resource prototype */
83 int pci_vfio_map_resource(struct rte_pci_device *dev);
84 int pci_vfio_unmap_resource(struct rte_pci_device *dev);
86 int pci_vfio_is_enabled(void);
90 #endif /* EAL_PCI_INIT_H_ */