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| author | Matias Bjørling <m@bjorling.me> | 2016-01-12 07:49:37 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2016-01-12 16:21:18 +0100 |
| commit | 5569615424613aa006005f18b03a3a12738a47d7 (patch) | |
| tree | 340aeb95fc2416c298107aaa5f18fdb453c3493d /include | |
| parent | lightnvm: core on-disk initialization (diff) | |
| download | linux-5569615424613aa006005f18b03a3a12738a47d7.tar.xz linux-5569615424613aa006005f18b03a3a12738a47d7.zip | |
lightnvm: introduce ioctl to initialize device
Based on the previous patch, we now introduce an ioctl to initialize the
device using nvm_init_sysblock and create the necessary system blocks.
The user may specify the media manager that they wish to instantiate on
top. Default from user-space will be "gennvm".
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/lightnvm.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/uapi/linux/lightnvm.h b/include/uapi/linux/lightnvm.h index 0171b85e7efc..56339e2e0a46 100644 --- a/include/uapi/linux/lightnvm.h +++ b/include/uapi/linux/lightnvm.h @@ -101,6 +101,12 @@ struct nvm_ioctl_remove { __u32 flags; }; +struct nvm_ioctl_dev_init { + char dev[DISK_NAME_LEN]; /* open-channel SSD device */ + char mmtype[NVM_MMTYPE_LEN]; /* register to media manager */ + + __u32 flags; +}; /* The ioctl type, 'L', 0x20 - 0x2F documented in ioctl-number.txt */ enum { @@ -111,6 +117,9 @@ enum { /* device level cmds */ NVM_DEV_CREATE_CMD, NVM_DEV_REMOVE_CMD, + + /* Init a device to support LightNVM media managers */ + NVM_DEV_INIT_CMD, }; #define NVM_IOCTL 'L' /* 0x4c */ @@ -123,6 +132,8 @@ enum { struct nvm_ioctl_create) #define NVM_DEV_REMOVE _IOW(NVM_IOCTL, NVM_DEV_REMOVE_CMD, \ struct nvm_ioctl_remove) +#define NVM_DEV_INIT _IOW(NVM_IOCTL, NVM_DEV_INIT_CMD, \ + struct nvm_ioctl_dev_init) #define NVM_VERSION_MAJOR 1 #define NVM_VERSION_MINOR 0 |