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| author |   Josef Bacik <josef@toxicpanda.com> | 2017-04-06 17:02:05 -0400 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2017-04-17 09:58:42 -0600 |
| commit | 47d902b90a32a42a3d33aef3a02170fc6f70aa23 (patch) | |
| tree | 194a8be4a065ee133d1ea3f035eb11ffe2ba0af7 /include/uapi/linux/nbd-netlink.h | |
| parent | nbd: handle dead connections (diff) | |
| download | linux-dev-47d902b90a32a42a3d33aef3a02170fc6f70aa23.tar.xz linux-dev-47d902b90a32a42a3d33aef3a02170fc6f70aa23.zip | |
nbd: add a status netlink command
Allow users to query the status of existing nbd devices. Right now this
only returns whether or not the device is connected, but could be
extended in the future to include more information.
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to '')
| -rw-r--r-- | include/uapi/linux/nbd-netlink.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/uapi/linux/nbd-netlink.h b/include/uapi/linux/nbd-netlink.h index c2209c75626c..6f7ca3d63a65 100644 --- a/include/uapi/linux/nbd-netlink.h +++ b/include/uapi/linux/nbd-netlink.h @@ -33,11 +33,35 @@ enum { NBD_ATTR_CLIENT_FLAGS, NBD_ATTR_SOCKETS, NBD_ATTR_DEAD_CONN_TIMEOUT, + NBD_ATTR_DEVICE_LIST, __NBD_ATTR_MAX, }; #define NBD_ATTR_MAX (__NBD_ATTR_MAX - 1) /* + * This is the format for multiple devices with NBD_ATTR_DEVICE_LIST + * + * [NBD_ATTR_DEVICE_LIST] + * [NBD_DEVICE_ITEM] + * [NBD_DEVICE_INDEX] + * [NBD_DEVICE_CONNECTED] + */ +enum { + NBD_DEVICE_ITEM_UNSPEC, + NBD_DEVICE_ITEM, + __NBD_DEVICE_ITEM_MAX, +}; +#define NBD_DEVICE_ITEM_MAX (__NBD_DEVICE_ITEM_MAX - 1) + +enum { + NBD_DEVICE_UNSPEC, + NBD_DEVICE_INDEX, + NBD_DEVICE_CONNECTED, + __NBD_DEVICE_MAX, +}; +#define NBD_DEVICE_ATTR_MAX (__NBD_DEVICE_MAX - 1) + +/* * This is the format for multiple sockets with NBD_ATTR_SOCKETS * * [NBD_ATTR_SOCKETS] @@ -66,6 +90,7 @@ enum { NBD_CMD_DISCONNECT, NBD_CMD_RECONFIGURE, NBD_CMD_LINK_DEAD, + NBD_CMD_STATUS, __NBD_CMD_MAX, }; #define NBD_CMD_MAX (__NBD_CMD_MAX - 1) |