blob: 7d7ef5f7f12b2809cc9c42d210157fa720cbe0cb (
plain)
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
|
/*
* QEMU NVM Express Subsystem: nvme-subsys
*
* Copyright (c) 2021 Minwoo Im <minwoo.im.dev@gmail.com>
*
* This code is licensed under the GNU GPL v2. Refer COPYING.
*/
#ifndef NVME_SUBSYS_H
#define NVME_SUBSYS_H
#define TYPE_NVME_SUBSYS "nvme-subsys"
#define NVME_SUBSYS(obj) \
OBJECT_CHECK(NvmeSubsystem, (obj), TYPE_NVME_SUBSYS)
#define NVME_SUBSYS_MAX_CTRLS 32
#define NVME_MAX_NAMESPACES 256
typedef struct NvmeCtrl NvmeCtrl;
typedef struct NvmeNamespace NvmeNamespace;
typedef struct NvmeSubsystem {
DeviceState parent_obj;
uint8_t subnqn[256];
NvmeCtrl *ctrls[NVME_SUBSYS_MAX_CTRLS];
/* Allocated namespaces for this subsystem */
NvmeNamespace *namespaces[NVME_MAX_NAMESPACES + 1];
struct {
char *nqn;
} params;
} NvmeSubsystem;
int nvme_subsys_register_ctrl(NvmeCtrl *n, Error **errp);
static inline NvmeCtrl *nvme_subsys_ctrl(NvmeSubsystem *subsys,
uint32_t cntlid)
{
if (!subsys || cntlid >= NVME_SUBSYS_MAX_CTRLS) {
return NULL;
}
return subsys->ctrls[cntlid];
}
/*
* Return allocated namespace of the specified nsid in the subsystem.
*/
static inline NvmeNamespace *nvme_subsys_ns(NvmeSubsystem *subsys,
uint32_t nsid)
{
if (!subsys || !nsid || nsid > NVME_MAX_NAMESPACES) {
return NULL;
}
return subsys->namespaces[nsid];
}
#endif /* NVME_SUBSYS_H */
|
