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| author | Minwoo Im <minwoo.im.dev@gmail.com> | 2021-02-06 00:30:10 +0900 |
|---|---|---|
| committer | Klaus Jensen <k.jensen@samsung.com> | 2021-03-09 11:00:57 +0100 |
| commit | 037953b5b299daec4d92253858de32c15dd4e9f4 (patch) | |
| tree | 2107afde74b3a959ed2c37fe0bd24a9f756fbc83 /hw/block/nvme-subsys.h | |
| parent | 81d07f4ff51a2b5249f940975acfb9b0d787d593 (diff) | |
hw/block/nvme: support namespace detach
Given that now we have nvme-subsys device supported, we can manage
namespace allocated, but not attached: detached. This patch introduced
a parameter for nvme-ns device named 'detached'. This parameter
indicates whether the given namespace device is detached from
a entire NVMe subsystem('subsys' given case, shared namespace) or a
controller('bus' given case, private namespace).
- Allocated namespace
1) Shared ns in the subsystem 'subsys0':
-device nvme-ns,id=ns1,drive=blknvme0,nsid=1,subsys=subsys0,detached=true
2) Private ns for the controller 'nvme0' of the subsystem 'subsys0':
-device nvme-subsys,id=subsys0
-device nvme,serial=foo,id=nvme0,subsys=subsys0
-device nvme-ns,id=ns1,drive=blknvme0,nsid=1,bus=nvme0,detached=true
3) (Invalid case) Controller 'nvme0' has no subsystem to manage ns:
-device nvme,serial=foo,id=nvme0
-device nvme-ns,id=ns1,drive=blknvme0,nsid=1,bus=nvme0,detached=true
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
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 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/block/nvme-subsys.h b/hw/block/nvme-subsys.h index 7a54a85120..507efcd23f 100644 --- a/hw/block/nvme-subsys.h +++ b/hw/block/nvme-subsys.h @@ -23,6 +23,7 @@ typedef struct NvmeSubsystem { uint8_t subnqn[256]; NvmeCtrl *ctrls[NVME_SUBSYS_MAX_CTRLS]; + /* Allocated namespaces for this subsystem */ NvmeNamespace *namespaces[NVME_SUBSYS_MAX_NAMESPACES]; struct { |