diff options
| author | Minwoo Im <minwoo.im.dev@gmail.com> | 2021-01-24 11:54:45 +0900 |
|---|---|---|
| committer | Klaus Jensen <k.jensen@samsung.com> | 2021-03-09 11:00:55 +0100 |
| commit | eb2e89747eca57fb0028001b28b3c4e0c1540e3a (patch) | |
| tree | 5202cd538a6cfebc5a506cb4895ecb5036ad9e51 /hw/block/nvme-subsys.h | |
| parent | 229a834518b950d56fd1bc94923276504d0ee9d4 (diff) | |
hw/block/nvme: introduce nvme-subsys device
To support multi-path in QEMU NVMe device model, We need to have NVMe
subsystem hierarchy to map controllers and namespaces to a NVMe
subsystem.
This patch introduced a simple nvme-subsys device model. The subsystem
will be prepared with subsystem NQN with <subsys_id> provided in
nvme-subsys device:
ex) -device nvme-subsys,id=subsys0: nqn.2019-08.org.qemu:subsys0
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Tested-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
[k.jensen: added 'nqn' device parameter per request]
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Diffstat (limited to 'hw/block/nvme-subsys.h')
| -rw-r--r-- | hw/block/nvme-subsys.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/hw/block/nvme-subsys.h b/hw/block/nvme-subsys.h new file mode 100644 index 0000000000..fc86d01ff3 --- /dev/null +++ b/hw/block/nvme-subsys.h @@ -0,0 +1,29 @@ +/* + * 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 + +typedef struct NvmeCtrl NvmeCtrl; +typedef struct NvmeNamespace NvmeNamespace; +typedef struct NvmeSubsystem { + DeviceState parent_obj; + uint8_t subnqn[256]; + + struct { + char *nqn; + } params; +} NvmeSubsystem; + +#endif /* NVME_SUBSYS_H */ |