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
|
/*
* Copyright (c) 2023-2024 Ian Marco Moffett and the Osmora Team.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of Hyra 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 _IC_NVMEVAR_H_
#define _IC_NVMEVAR_H_
#include <sys/types.h>
/* Admin commands */
#define NVME_OP_CREATE_IOSQ 0x01
#define NVME_OP_CREATE_IOCQ 0x05
#define NVME_OP_IDENTIFY 0x06
/* Identify CNS values */
#define ID_CNS_CTRL 0x01 /* Identify controller */
#define ID_CNS_NSID_LIST 0x07 /* Active NSID list */
struct nvme_identify_cmd {
uint8_t opcode;
uint8_t flags;
uint16_t cid;
uint32_t nsid;
uint64_t unused1;
uint64_t unused2;
uint64_t prp1;
uint64_t prp2;
uint32_t cns;
uint32_t unused3[5];
};
/* Command completion queue entry */
struct nvme_cq_entry {
uint32_t res;
uint32_t unused;
uint16_t sqhead;
uint16_t sqid;
uint16_t cid;
uint16_t status;
};
struct nvme_cmd {
union {
struct nvme_identify_cmd identify;
};
};
struct nvme_queue {
struct nvme_cmd *sq; /* Submission queue */
struct nvme_cq_entry *cq; /* Completion queue */
uint16_t sq_head; /* Submission queue head */
uint16_t sq_tail; /* Submission queue tail */
uint16_t cq_head; /* Completion queue head */
uint8_t cq_phase : 1; /* Completion queue phase bit */
uint16_t size; /* Size in elements */
volatile uint32_t *sq_db; /* Submission doorbell */
volatile uint32_t *cq_db; /* Completion doorbell */
};
struct nvme_id {
uint16_t vid;
uint16_t ssvid;
char sn[20];
char mn[40];
char fr[8];
uint8_t rab;
uint8_t ieee[3];
uint8_t mic;
uint8_t mdts;
uint16_t ctrlid;
uint32_t version;
uint32_t unused1[43];
uint16_t oacs;
uint8_t acl;
uint8_t aerl;
uint8_t fw;
uint8_t lpa;
uint8_t elpe;
uint8_t npss;
uint8_t avscc;
uint8_t apsta;
uint16_t wctemp;
uint16_t cctemp;
uint16_t unused2[121];
uint8_t sqes;
uint8_t cqes;
uint16_t unused3;
uint32_t nn;
uint16_t oncs;
uint16_t fuses;
uint8_t fna;
uint8_t vwc;
uint16_t awun;
uint16_t awupf;
uint8_t nvscc;
uint8_t unused4;
uint16_t acwu;
uint16_t unused5;
uint32_t sgls;
uint32_t unused6[1401];
uint8_t vs[1024];
};
struct nvme_ctrl {
struct nvme_queue adminq;
};
#endif /* !_IC_NVMEVAR_H_ */
|
