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| author |   Keith Busch <keith.busch@intel.com> | 2016-04-29 15:45:18 -0600 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2016-05-17 17:14:21 -0600 |
| commit | 9ec3bb2f994bda9c8817856fdcbfaebe8f62fbd3 (patch) | |
| tree | f97fe0c5ee4c45fe9bc93a735c73d84cef992585 /include/uapi/linux/nvme_ioctl.h | |
| parent | NVMe: Reduce driver log spamming (diff) | |
| download | linux-dev-9ec3bb2f994bda9c8817856fdcbfaebe8f62fbd3.tar.xz linux-dev-9ec3bb2f994bda9c8817856fdcbfaebe8f62fbd3.zip | |
NVMe: Allow user initiated rescan
This exposes ioctl and sysfs methods a user can invoke to request the
driver rescan a controller and its namespaces. This is less harsh than
doing a controller reset, which temporarilly halts all IO, just to
surface a newly attached namespace.
This is mainly useful for controllers that implement the namespace
management command, but do not support the namespace notify change
asynchronous event notification.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/uapi/linux/nvme_ioctl.h')
| -rw-r--r-- | include/uapi/linux/nvme_ioctl.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/nvme_ioctl.h b/include/uapi/linux/nvme_ioctl.h index c4b2a3f90829..50ff21f748b6 100644 --- a/include/uapi/linux/nvme_ioctl.h +++ b/include/uapi/linux/nvme_ioctl.h @@ -61,5 +61,6 @@ struct nvme_passthru_cmd { #define NVME_IOCTL_IO_CMD _IOWR('N', 0x43, struct nvme_passthru_cmd) #define NVME_IOCTL_RESET _IO('N', 0x44) #define NVME_IOCTL_SUBSYS_RESET _IO('N', 0x45) +#define NVME_IOCTL_RESCAN _IO('N', 0x46) #endif /* _UAPI_LINUX_NVME_IOCTL_H */ |