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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation
*/
#ifndef EAL_VFIO_H_
#define EAL_VFIO_H_
/*
* determine if VFIO is present on the system
*/
#if !defined(VFIO_PRESENT) && defined(RTE_EAL_VFIO)
#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0)
#define VFIO_PRESENT
#else
#pragma message("VFIO configured but not supported by this kernel, disabling.")
#endif /* kernel version >= 3.6.0 */
#endif /* RTE_EAL_VFIO */
#ifdef VFIO_PRESENT
#include <stdint.h>
#include <linux/vfio.h>
#define RTE_VFIO_TYPE1 VFIO_TYPE1_IOMMU
#ifndef VFIO_SPAPR_TCE_v2_IOMMU
#define RTE_VFIO_SPAPR 7
#define VFIO_IOMMU_SPAPR_REGISTER_MEMORY _IO(VFIO_TYPE, VFIO_BASE + 17)
#define VFIO_IOMMU_SPAPR_UNREGISTER_MEMORY _IO(VFIO_TYPE, VFIO_BASE + 18)
#define VFIO_IOMMU_SPAPR_TCE_CREATE _IO(VFIO_TYPE, VFIO_BASE + 19)
#define VFIO_IOMMU_SPAPR_TCE_REMOVE _IO(VFIO_TYPE, VFIO_BASE + 20)
struct vfio_iommu_spapr_register_memory {
uint32_t argsz;
uint32_t flags;
uint64_t vaddr;
uint64_t size;
};
struct vfio_iommu_spapr_tce_create {
uint32_t argsz;
uint32_t flags;
/* in */
uint32_t page_shift;
uint32_t __resv1;
uint64_t window_size;
uint32_t levels;
uint32_t __resv2;
/* out */
uint64_t start_addr;
};
struct vfio_iommu_spapr_tce_remove {
uint32_t argsz;
uint32_t flags;
/* in */
uint64_t start_addr;
};
struct vfio_iommu_spapr_tce_ddw_info {
uint64_t pgsizes;
uint32_t max_dynamic_windows_supported;
uint32_t levels;
};
/* SPAPR_v2 is not present, but SPAPR might be */
#ifndef VFIO_SPAPR_TCE_IOMMU
#define VFIO_IOMMU_SPAPR_TCE_GET_INFO _IO(VFIO_TYPE, VFIO_BASE + 12)
struct vfio_iommu_spapr_tce_info {
uint32_t argsz;
uint32_t flags;
uint32_t dma32_window_start;
uint32_t dma32_window_size;
struct vfio_iommu_spapr_tce_ddw_info ddw;
};
#endif /* VFIO_SPAPR_TCE_IOMMU */
#else /* VFIO_SPAPR_TCE_v2_IOMMU */
#define RTE_VFIO_SPAPR VFIO_SPAPR_TCE_v2_IOMMU
#endif
#define VFIO_MAX_GROUPS RTE_MAX_VFIO_GROUPS
#define VFIO_MAX_CONTAINERS RTE_MAX_VFIO_CONTAINERS
/*
* we don't need to store device fd's anywhere since they can be obtained from
* the group fd via an ioctl() call.
*/
struct vfio_group {
int group_num;
int fd;
int devices;
};
/* DMA mapping function prototype.
* Takes VFIO container fd as a parameter.
* Returns 0 on success, -1 on error.
* */
typedef int (*vfio_dma_func_t)(int);
/* Custom memory region DMA mapping function prototype.
* Takes VFIO container fd, virtual address, phisical address, length and
* operation type (0 to unmap 1 for map) as a parameters.
* Returns 0 on success, -1 on error.
**/
typedef int (*vfio_dma_user_func_t)(int fd, uint64_t vaddr, uint64_t iova,
uint64_t len, int do_map);
struct vfio_iommu_type {
int type_id;
const char *name;
vfio_dma_user_func_t dma_user_map_func;
vfio_dma_func_t dma_map_func;
};
/* pick IOMMU type. returns a pointer to vfio_iommu_type or NULL for error */
const struct vfio_iommu_type *
vfio_set_iommu_type(int vfio_container_fd);
/* check if we have any supported extensions */
int
vfio_has_supported_extensions(int vfio_container_fd);
int vfio_mp_sync_setup(void);
#define EAL_VFIO_MP "eal_vfio_mp_sync"
#define SOCKET_REQ_CONTAINER 0x100
#define SOCKET_REQ_GROUP 0x200
#define SOCKET_CLR_GROUP 0x300
#define SOCKET_OK 0x0
#define SOCKET_NO_FD 0x1
#define SOCKET_ERR 0xFF
struct vfio_mp_param {
int req;
int result;
int group_num;
};
#endif /* VFIO_PRESENT */
#endif /* EAL_VFIO_H_ */
|
