1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef EAL_PCI_INIT_H_
#define EAL_PCI_INIT_H_
#include <linux/version.h>
#include <rte_vfio.h>
/** IO resource type: */
#define IORESOURCE_IO 0x00000100
#define IORESOURCE_MEM 0x00000200
/*
* Helper function to map PCI resources right after hugepages in virtual memory
*/
extern void *pci_map_addr;
void *pci_find_max_end_va(void);
/* parse one line of the "resource" sysfs file (note that the 'line'
* string is modified)
*/
int pci_parse_one_sysfs_resource(char *line, size_t len, uint64_t *phys_addr,
uint64_t *end_addr, uint64_t *flags);
int pci_uio_alloc_resource(struct rte_pci_device *dev,
struct mapped_pci_resource **uio_res);
void pci_uio_free_resource(struct rte_pci_device *dev,
struct mapped_pci_resource *uio_res);
int pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
struct mapped_pci_resource *uio_res, int map_idx);
int pci_uio_read_config(const struct rte_intr_handle *intr_handle,
void *buf, size_t len, off_t offs);
int pci_uio_write_config(const struct rte_intr_handle *intr_handle,
const void *buf, size_t len, off_t offs);
int pci_uio_ioport_map(struct rte_pci_device *dev, int bar,
struct rte_pci_ioport *p);
void pci_uio_ioport_read(struct rte_pci_ioport *p,
void *data, size_t len, off_t offset);
void pci_uio_ioport_write(struct rte_pci_ioport *p,
const void *data, size_t len, off_t offset);
int pci_uio_ioport_unmap(struct rte_pci_ioport *p);
#ifdef VFIO_PRESENT
#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 10, 0)
#define RTE_PCI_MSIX_TABLE_BIR 0x7
#define RTE_PCI_MSIX_TABLE_OFFSET 0xfffffff8
#define RTE_PCI_MSIX_FLAGS_QSIZE 0x07ff
#else
#define RTE_PCI_MSIX_TABLE_BIR PCI_MSIX_TABLE_BIR
#define RTE_PCI_MSIX_TABLE_OFFSET PCI_MSIX_TABLE_OFFSET
#define RTE_PCI_MSIX_FLAGS_QSIZE PCI_MSIX_FLAGS_QSIZE
#endif
/* access config space */
int pci_vfio_read_config(const struct rte_intr_handle *intr_handle,
void *buf, size_t len, off_t offs);
int pci_vfio_write_config(const struct rte_intr_handle *intr_handle,
const void *buf, size_t len, off_t offs);
int pci_vfio_ioport_map(struct rte_pci_device *dev, int bar,
struct rte_pci_ioport *p);
void pci_vfio_ioport_read(struct rte_pci_ioport *p,
void *data, size_t len, off_t offset);
void pci_vfio_ioport_write(struct rte_pci_ioport *p,
const void *data, size_t len, off_t offset);
int pci_vfio_ioport_unmap(struct rte_pci_ioport *p);
/* map/unmap VFIO resource prototype */
int pci_vfio_map_resource(struct rte_pci_device *dev);
int pci_vfio_unmap_resource(struct rte_pci_device *dev);
int pci_vfio_is_enabled(void);
#endif
#endif /* EAL_PCI_INIT_H_ */
|
