From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- Documentation/ABI/testing/sysfs-bus-rbd | 162 ++++++++++++++++++++++++++++++++ 1 file changed, 162 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-rbd (limited to 'Documentation/ABI/testing/sysfs-bus-rbd') diff --git a/Documentation/ABI/testing/sysfs-bus-rbd b/Documentation/ABI/testing/sysfs-bus-rbd new file mode 100644 index 000000000..cc30bee8b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-rbd @@ -0,0 +1,162 @@ +What: /sys/bus/rbd/add +Date: Oct, 2010 +KernelVersion: v2.6.37 +Contact: Sage Weil +Description: + (WO) Add rbd block device. + + Usage: [] + + $ echo "192.168.0.1 name=admin rbd foo" > /sys/bus/rbd/add + + The snapshot name can be "-" or omitted to map the image + read/write. A will be assigned for any registered block + device. If snapshot is used, it will be mapped read-only. + + +What: /sys/bus/rbd/remove +Date: Oct, 2010 +KernelVersion: v2.6.37 +Contact: Sage Weil +Description: + (WO) Remove rbd block device. + + Usage: [force] + + $ echo 2 > /sys/bus/rbd/remove + + Optional "force" argument which when passed will wait for + running requests and then unmap the image. Requests sent to the + driver after initiating the removal will be failed. (August + 2016, since 4.9.) + + +What: /sys/bus/rbd/add_single_major +Date: Dec, 2013 +KernelVersion: v3.14 +Contact: Sage Weil +Description: + (WO) Available only if rbd module is inserted with single_major + parameter set to true. + + Usage is the same as for /sys/bus/rbd/add. If present, this + should be used instead of the latter: any attempts to use + /sys/bus/rbd/add if /sys/bus/rbd/add_single_major is available + will fail for backwards compatibility reasons. + + +What: /sys/bus/rbd/remove_single_major +Date: Dec, 2013 +KernelVersion: v3.14 +Contact: Sage Weil +Description: + (WO) Available only if rbd module is inserted with single_major + parameter set to true. + + Usage is the same as for /sys/bus/rbd/remove. If present, this + should be used instead of the latter: any attempts to use + /sys/bus/rbd/remove if /sys/bus/rbd/remove_single_major is + available will fail for backwards compatibility reasons. + + +What: /sys/bus/rbd/supported_features +Date: Mar, 2017 +KernelVersion: v4.11 +Contact: Sage Weil +Description: + (RO) Displays the features supported by the rbd module so that + userspace can generate meaningful error messages and spell out + unsupported features that need to be disabled. + + +What: /sys/bus/rbd/devices//size +What: /sys/bus/rbd/devices//major +What: /sys/bus/rbd/devices//client_id +What: /sys/bus/rbd/devices//pool +What: /sys/bus/rbd/devices//name +What: /sys/bus/rbd/devices//refresh +What: /sys/bus/rbd/devices//current_snap +Date: Oct, 2010 +KernelVersion: v2.6.37 +Contact: Sage Weil +Description: + size: (RO) The size (in bytes) of the mapped block + device. + + major: (RO) The block device major number. + + client_id: (RO) The ceph unique client id that was assigned + for this specific session. + + pool: (RO) The name of the storage pool where this rbd + image resides. An rbd image name is unique + within its pool. + + name: (RO) The name of the rbd image. + + refresh: (WO) Writing to this file will reread the image + header data and set all relevant data structures + accordingly. + + current_snap: (RO) The current snapshot for which the device + is mapped. + + +What: /sys/bus/rbd/devices//pool_id +Date: Jul, 2012 +KernelVersion: v3.6 +Contact: Sage Weil +Description: + (RO) The unique identifier for the rbd image's pool. This is a + permanent attribute of the pool. A pool's id will never change. + + +What: /sys/bus/rbd/devices//image_id +What: /sys/bus/rbd/devices//features +Date: Oct, 2012 +KernelVersion: v3.7 +Contact: Sage Weil +Description: + image_id: (RO) The unique id for the rbd image. (For rbd + image format 1 this is empty.) + + features: (RO) A hexadecimal encoding of the feature bits + for this image. + + +What: /sys/bus/rbd/devices//parent +Date: Nov, 2012 +KernelVersion: v3.8 +Contact: Sage Weil +Description: + (RO) Information identifying the chain of parent images in a + layered rbd image. Entries are separated by empty lines. + + +What: /sys/bus/rbd/devices//minor +Date: Dec, 2013 +KernelVersion: v3.14 +Contact: Sage Weil +Description: + (RO) The block device minor number. + + +What: /sys/bus/rbd/devices//snap_id +What: /sys/bus/rbd/devices//config_info +What: /sys/bus/rbd/devices//cluster_fsid +What: /sys/bus/rbd/devices//client_addr +Date: Aug, 2016 +KernelVersion: v4.9 +Contact: Sage Weil +Description: + snap_id: (RO) The current snapshot's id. + + config_info: (RO) The string written into + /sys/bus/rbd/add{,_single_major}. + + cluster_fsid: (RO) The ceph cluster UUID. + + client_addr: (RO) The ceph unique client + entity_addr_t (address + nonce). The format is +
:/: '1.2.3.4:1234/5678' or + '[1:2:3:4:5:6:7:8]:1234/5678'. -- cgit v1.2.3