from .helpers import deprecated_alias @deprecated_alias('set_bdev_options') def bdev_set_options(client, bdev_io_pool_size=None, bdev_io_cache_size=None, bdev_auto_examine=None): """Set parameters for the bdev subsystem. Args: bdev_io_pool_size: number of bdev_io structures in shared buffer pool (optional) bdev_io_cache_size: maximum number of bdev_io structures cached per thread (optional) bdev_auto_examine: if set to false, the bdev layer will not examine every disks automatically (optional) """ params = {} if bdev_io_pool_size: params['bdev_io_pool_size'] = bdev_io_pool_size if bdev_io_cache_size: params['bdev_io_cache_size'] = bdev_io_cache_size if bdev_auto_examine is not None: params["bdev_auto_examine"] = bdev_auto_examine return client.call('bdev_set_options', params) @deprecated_alias('construct_compress_bdev') def bdev_compress_create(client, base_bdev_name, pm_path, lb_size): """Construct a compress virtual block device. Args: base_bdev_name: name of the underlying base bdev pm_path: path to persistent memory lb_size: logical block size for the compressed vol in bytes. Must be 4K or 512. Returns: Name of created virtual block device. """ params = {'base_bdev_name': base_bdev_name, 'pm_path': pm_path, 'lb_size': lb_size} return client.call('bdev_compress_create', params) @deprecated_alias('delete_compress_bdev') def bdev_compress_delete(client, name): """Delete compress virtual block device. Args: name: name of compress vbdev to delete """ params = {'name': name} return client.call('bdev_compress_delete', params) @deprecated_alias('set_compress_pmd') def compress_set_pmd(client, pmd): """Set pmd options for the bdev compress. Args: pmd: 0 = auto-select, 1 = QAT, 2 = ISAL """ params = {'pmd': pmd} return client.call('compress_set_pmd', params) def bdev_compress_get_orphans(client, name=None): """Get a list of comp bdevs that do not have a pmem file (aka orphaned). Args: name: comp bdev name to query (optional; if omitted, query all comp bdevs) Returns: List of comp bdev names. """ params = {} if name: params['name'] = name return client.call('bdev_compress_get_orphans', params) @deprecated_alias('construct_crypto_bdev') def bdev_crypto_create(client, base_bdev_name, name, crypto_pmd, key, cipher=None, key2=None): """Construct a crypto virtual block device. Args: base_bdev_name: name of the underlying base bdev name: name for the crypto vbdev crypto_pmd: name of of the DPDK crypto driver to use key: key Returns: Name of created virtual block device. """ params = {'base_bdev_name': base_bdev_name, 'name': name, 'crypto_pmd': crypto_pmd, 'key': key} if cipher: params['cipher'] = cipher if key2: params['key2'] = key2 return client.call('bdev_crypto_create', params) @deprecated_alias('delete_crypto_bdev') def bdev_crypto_delete(client, name): """Delete crypto virtual block device. Args: name: name of crypto vbdev to delete """ params = {'name': name} return client.call('bdev_crypto_delete', params) @deprecated_alias('construct_ocf_bdev') def bdev_ocf_create(client, name, mode, cache_bdev_name, core_bdev_name): """Add an OCF block device Args: name: name of constructed OCF bdev mode: OCF cache mode: {'wb', 'wt', 'pt', 'wa', 'wi', 'wo'} cache_bdev_name: name of underlying cache bdev core_bdev_name: name of underlying core bdev Returns: Name of created block device """ params = {'name': name, 'mode': mode, 'cache_bdev_name': cache_bdev_name, 'core_bdev_name': core_bdev_name} return client.call('bdev_ocf_create', params) @deprecated_alias('delete_ocf_bdev') def bdev_ocf_delete(client, name): """Delete an OCF device Args: name: name of OCF bdev """ params = {'name': name} return client.call('bdev_ocf_delete', params) @deprecated_alias('get_ocf_stats') def bdev_ocf_get_stats(client, name): """Get statistics of chosen OCF block device Args: name: name of OCF bdev Returns: Statistics as json object """ params = {'name': name} return client.call('bdev_ocf_get_stats', params) @deprecated_alias('get_ocf_stats') def bdev_ocf_get_bdevs(client, name=None): """Get list of OCF devices including unregistered ones Args: name: name of OCF vbdev or name of cache device or name of core device (optional) Returns: Array of OCF devices with their current status """ params = None if name: params = {'name': name} return client.call('bdev_ocf_get_bdevs', params) @deprecated_alias('construct_malloc_bdev') def bdev_malloc_create(client, num_blocks, block_size, name=None, uuid=None): """Construct a malloc block device. Args: num_blocks: size of block device in blocks block_size: block size of device; must be a power of 2 and at least 512 name: name of block device (optional) uuid: UUID of block device (optional) Returns: Name of created block device. """ params = {'num_blocks': num_blocks, 'block_size': block_size} if name: params['name'] = name if uuid: params['uuid'] = uuid return client.call('bdev_malloc_create', params) @deprecated_alias('delete_malloc_bdev') def bdev_malloc_delete(client, name): """Delete malloc block device. Args: bdev_name: name of malloc bdev to delete """ params = {'name': name} return client.call('bdev_malloc_delete', params) @deprecated_alias('construct_null_bdev') def bdev_null_create(client, num_blocks, block_size, name, uuid=None, md_size=None, dif_type=None, dif_is_head_of_md=None): """Construct a null block device. Args: num_blocks: size of block device in blocks block_size: block size of device; data part size must be a power of 2 and at least 512 name: name of block device uuid: UUID of block device (optional) md_size: metadata size of device (optional) dif_type: protection information type (optional) dif_is_head_of_md: protection information is in the first 8 bytes of metadata (optional) Returns: Name of created block device. """ params = {'name': name, 'num_blocks': num_blocks, 'block_size': block_size} if uuid: params['uuid'] = uuid if md_size: params['md_size'] = md_size if dif_type: params['dif_type'] = dif_type if dif_is_head_of_md: params['dif_is_head_of_md'] = dif_is_head_of_md return client.call('bdev_null_create', params) @deprecated_alias('delete_null_bdev') def bdev_null_delete(client, name): """Remove null bdev from the system. Args: name: name of null bdev to delete """ params = {'name': name} return client.call('bdev_null_delete', params) @deprecated_alias('get_raid_bdevs') def bdev_raid_get_bdevs(client, category): """Get list of raid bdevs based on category Args: category: any one of all or online or configuring or offline Returns: List of raid bdev names """ params = {'category': category} return client.call('bdev_raid_get_bdevs', params) @deprecated_alias('construct_raid_bdev') def bdev_raid_create(client, name, raid_level, base_bdevs, strip_size=None, strip_size_kb=None): """Create raid bdev. Either strip size arg will work but one is required. Args: name: user defined raid bdev name strip_size (deprecated): strip size of raid bdev in KB, supported values like 8, 16, 32, 64, 128, 256, etc strip_size_kb: strip size of raid bdev in KB, supported values like 8, 16, 32, 64, 128, 256, etc raid_level: raid level of raid bdev, supported values 0 base_bdevs: Space separated names of Nvme bdevs in double quotes, like "Nvme0n1 Nvme1n1 Nvme2n1" Returns: None """ params = {'name': name, 'raid_level': raid_level, 'base_bdevs': base_bdevs} if strip_size: params['strip_size'] = strip_size if strip_size_kb: params['strip_size_kb'] = strip_size_kb return client.call('bdev_raid_create', params) @deprecated_alias('destroy_raid_bdev') def bdev_raid_delete(client, name): """Delete raid bdev Args: name: raid bdev name Returns: None """ params = {'name': name} return client.call('bdev_raid_delete', params) @deprecated_alias('construct_aio_bdev') def bdev_aio_create(client, filename, name, block_size=None): """Construct a Linux AIO block device. Args: filename: path to device or file (ex: /dev/sda) name: name of block device block_size: block size of device (optional; autodetected if omitted) Returns: Name of created block device. """ params = {'name': name, 'filename': filename} if block_size: params['block_size'] = block_size return client.call('bdev_aio_create', params) @deprecated_alias('delete_aio_bdev') def bdev_aio_delete(client, name): """Remove aio bdev from the system. Args: bdev_name: name of aio bdev to delete """ params = {'name': name} return client.call('bdev_aio_delete', params) def bdev_uring_create(client, filename, name, block_size=None): """Create a bdev with Linux io_uring backend. Args: filename: path to device or file (ex: /dev/nvme0n1) name: name of bdev block_size: block size of device (optional; autodetected if omitted) Returns: Name of created bdev. """ params = {'name': name, 'filename': filename} if block_size: params['block_size'] = block_size return client.call('bdev_uring_create', params) def bdev_uring_delete(client, name): """Delete a uring bdev. Args: name: name of uring bdev to delete """ params = {'name': name} return client.call('bdev_uring_delete', params) @deprecated_alias('set_bdev_nvme_options') def bdev_nvme_set_options(client, action_on_timeout=None, timeout_us=None, retry_count=None, arbitration_burst=None, low_priority_weight=None, medium_priority_weight=None, high_priority_weight=None, nvme_adminq_poll_period_us=None, nvme_ioq_poll_period_us=None, io_queue_requests=None, delay_cmd_submit=None): """Set options for the bdev nvme. This is startup command. Args: action_on_timeout: action to take on command time out. Valid values are: none, reset, abort (optional) timeout_us: Timeout for each command, in microseconds. If 0, don't track timeouts (optional) retry_count: The number of attempts per I/O when an I/O fails (optional) arbitration_burst: The value is expressed as a power of two (optional) low_prioity_weight: The number of commands that may be executed from the low priority queue at one time (optional) medium_prioity_weight: The number of commands that may be executed from the medium priority queue at one time (optional) high_prioity_weight: The number of commands that may be executed from the high priority queue at one time (optional) nvme_adminq_poll_period_us: How often the admin queue is polled for asynchronous events in microseconds (optional) nvme_ioq_poll_period_us: How often to poll I/O queues for completions in microseconds (optional) io_queue_requests: The number of requests allocated for each NVMe I/O queue. Default: 512 (optional) delay_cmd_submit: Enable delayed NVMe command submission to allow batching of multiple commands (optional) """ params = {} if action_on_timeout: params['action_on_timeout'] = action_on_timeout if timeout_us: params['timeout_us'] = timeout_us if retry_count: params['retry_count'] = retry_count if arbitration_burst: params['arbitration_burst'] = arbitration_burst if low_priority_weight: params['low_priority_weight'] = low_priority_weight if medium_priority_weight: params['medium_priority_weight'] = medium_priority_weight if high_priority_weight: params['high_priority_weight'] = high_priority_weight if nvme_adminq_poll_period_us: params['nvme_adminq_poll_period_us'] = nvme_adminq_poll_period_us if nvme_ioq_poll_period_us: params['nvme_ioq_poll_period_us'] = nvme_ioq_poll_period_us if io_queue_requests: params['io_queue_requests'] = io_queue_requests if delay_cmd_submit is not None: params['delay_cmd_submit'] = delay_cmd_submit return client.call('bdev_nvme_set_options', params) @deprecated_alias('set_bdev_nvme_hotplug') def bdev_nvme_set_hotplug(client, enable, period_us=None): """Set options for the bdev nvme. This is startup command. Args: enable: True to enable hotplug, False to disable. period_us: how often the hotplug is processed for insert and remove events. Set 0 to reset to default. (optional) """ params = {'enable': enable} if period_us: params['period_us'] = period_us return client.call('bdev_nvme_set_hotplug', params) @deprecated_alias('construct_nvme_bdev') def bdev_nvme_attach_controller(client, name, trtype, traddr, adrfam=None, trsvcid=None, priority=None, subnqn=None, hostnqn=None, hostaddr=None, hostsvcid=None, prchk_reftag=None, prchk_guard=None): """Construct block device for each NVMe namespace in the attached controller. Args: name: bdev name prefix; "n" + namespace ID will be appended to create unique names trtype: transport type ("PCIe", "RDMA") traddr: transport address (PCI BDF or IP address) adrfam: address family ("IPv4", "IPv6", "IB", or "FC") (optional for PCIe) trsvcid: transport service ID (port number for IP-based addresses; optional for PCIe) priority: transport connection priority (Sock priority for TCP-based transports; optional) subnqn: subsystem NQN to connect to (optional) hostnqn: NQN to connect from (optional) hostaddr: host transport address (IP address for IP-based transports, NULL for PCIe or FC; optional) hostsvcid: host transport service ID (port number for IP-based transports, NULL for PCIe or FC; optional) prchk_reftag: Enable checking of PI reference tag for I/O processing (optional) prchk_guard: Enable checking of PI guard for I/O processing (optional) Returns: Names of created block devices. """ params = {'name': name, 'trtype': trtype, 'traddr': traddr} if hostnqn: params['hostnqn'] = hostnqn if hostaddr: params['hostaddr'] = hostaddr if hostsvcid: params['hostsvcid'] = hostsvcid if adrfam: params['adrfam'] = adrfam if trsvcid: params['trsvcid'] = trsvcid if priority: params['priority'] = priority if subnqn: params['subnqn'] = subnqn if prchk_reftag: params['prchk_reftag'] = prchk_reftag if prchk_guard: params['prchk_guard'] = prchk_guard return client.call('bdev_nvme_attach_controller', params) @deprecated_alias('delete_nvme_controller') def bdev_nvme_detach_controller(client, name): """Detach NVMe controller and delete any associated bdevs. Args: name: controller name """ params = {'name': name} return client.call('bdev_nvme_detach_controller', params) def bdev_nvme_cuse_register(client, name): """Register CUSE devices on NVMe controller. Args: name: Name of the operating NVMe controller """ params = {'name': name} return client.call('bdev_nvme_cuse_register', params) def bdev_nvme_cuse_unregister(client, name): """Unregister CUSE devices on NVMe controller. Args: name: Name of the operating NVMe controller """ params = {'name': name} return client.call('bdev_nvme_cuse_unregister', params) def bdev_zone_block_create(client, name, base_bdev, zone_capacity, optimal_open_zones): """Creates a virtual zone device on top of existing non-zoned bdev. Args: name: Zone device name base_bdev: Base Nvme bdev name zone_capacity: Surfaced zone capacity in blocks optimal_open_zones: Number of zones required to reach optimal write speed (optional, default: 1) Returns: Name of created block device. """ params = {'name': name, 'base_bdev': base_bdev, 'zone_capacity': zone_capacity, 'optimal_open_zones': optimal_open_zones} return client.call('bdev_zone_block_create', params) def bdev_zone_block_delete(client, name): """Remove block zone bdev from the system. Args: name: name of block zone bdev to delete """ params = {'name': name} return client.call('bdev_zone_block_delete', params) @deprecated_alias('construct_rbd_bdev') def bdev_rbd_create(client, pool_name, rbd_name, block_size, name=None, user=None, config=None): """Create a Ceph RBD block device. Args: pool_name: Ceph RBD pool name rbd_name: Ceph RBD image name block_size: block size of RBD volume name: name of block device (optional) user: Ceph user name (optional) config: map of config keys to values (optional) Returns: Name of created block device. """ params = { 'pool_name': pool_name, 'rbd_name': rbd_name, 'block_size': block_size, } if name: params['name'] = name if user is not None: params['user_id'] = user if config is not None: params['config'] = config return client.call('bdev_rbd_create', params) @deprecated_alias('delete_rbd_bdev') def bdev_rbd_delete(client, name): """Remove rbd bdev from the system. Args: name: name of rbd bdev to delete """ params = {'name': name} return client.call('bdev_rbd_delete', params) def bdev_rbd_resize(client, name, new_size): """Resize rbd bdev in the system. Args: name: name of rbd bdev to resize new_size: new bdev size of resize operation. The unit is MiB """ params = { 'name': name, 'new_size': new_size, } return client.call('bdev_rbd_resize', params) @deprecated_alias('construct_error_bdev') def bdev_error_create(client, base_name): """Construct an error injection block device. Args: base_name: base bdev name """ params = {'base_name': base_name} return client.call('bdev_error_create', params) def bdev_delay_create(client, base_bdev_name, name, avg_read_latency, p99_read_latency, avg_write_latency, p99_write_latency): """Construct a delay block device. Args: base_bdev_name: name of the existing bdev name: name of block device avg_read_latency: complete 99% of read ops with this delay p99_read_latency: complete 1% of read ops with this delay avg_write_latency: complete 99% of write ops with this delay p99_write_latency: complete 1% of write ops with this delay Returns: Name of created block device. """ params = { 'base_bdev_name': base_bdev_name, 'name': name, 'avg_read_latency': avg_read_latency, 'p99_read_latency': p99_read_latency, 'avg_write_latency': avg_write_latency, 'p99_write_latency': p99_write_latency, } return client.call('bdev_delay_create', params) def bdev_delay_delete(client, name): """Remove delay bdev from the system. Args: name: name of delay bdev to delete """ params = {'name': name} return client.call('bdev_delay_delete', params) def bdev_delay_update_latency(client, delay_bdev_name, latency_type, latency_us): """Update the latency value for a delay block device Args: delay_bdev_name: name of the delay bdev latency_type: 'one of: avg_read, avg_write, p99_read, p99_write. No other values accepted.' latency_us: 'new latency value.' Returns: True if successful, or a specific error otherwise. """ params = { 'delay_bdev_name': delay_bdev_name, 'latency_type': latency_type, 'latency_us': latency_us, } return client.call('bdev_delay_update_latency', params) @deprecated_alias('delete_error_bdev') def bdev_error_delete(client, name): """Remove error bdev from the system. Args: bdev_name: name of error bdev to delete """ params = {'name': name} return client.call('bdev_error_delete', params) @deprecated_alias('construct_iscsi_bdev') def bdev_iscsi_create(client, name, url, initiator_iqn): """Construct an iSCSI block device. Args: name: name of block device url: iSCSI URL initiator_iqn: IQN name to be used by initiator Returns: Name of created block device. """ params = { 'name': name, 'url': url, 'initiator_iqn': initiator_iqn, } return client.call('bdev_iscsi_create', params) @deprecated_alias('delete_iscsi_bdev') def bdev_iscsi_delete(client, name): """Remove iSCSI bdev from the system. Args: bdev_name: name of iSCSI bdev to delete """ params = {'name': name} return client.call('bdev_iscsi_delete', params) @deprecated_alias('construct_pmem_bdev') def bdev_pmem_create(client, pmem_file, name): """Construct a libpmemblk block device. Args: pmem_file: path to pmemblk pool file name: name of block device Returns: Name of created block device. """ params = { 'pmem_file': pmem_file, 'name': name } return client.call('bdev_pmem_create', params) @deprecated_alias('delete_pmem_bdev') def bdev_pmem_delete(client, name): """Remove pmem bdev from the system. Args: name: name of pmem bdev to delete """ params = {'name': name} return client.call('bdev_pmem_delete', params) @deprecated_alias('construct_passthru_bdev') def bdev_passthru_create(client, base_bdev_name, name): """Construct a pass-through block device. Args: base_bdev_name: name of the existing bdev name: name of block device Returns: Name of created block device. """ params = { 'base_bdev_name': base_bdev_name, 'name': name, } return client.call('bdev_passthru_create', params) @deprecated_alias('delete_passthru_bdev') def bdev_passthru_delete(client, name): """Remove pass through bdev from the system. Args: name: name of pass through bdev to delete """ params = {'name': name} return client.call('bdev_passthru_delete', params) def bdev_opal_create(client, nvme_ctrlr_name, nsid, locking_range_id, range_start, range_length, password): """Create opal virtual block devices from a base nvme bdev. Args: nvme_ctrlr_name: name of the nvme ctrlr nsid: namespace ID of nvme ctrlr locking_range_id: locking range ID corresponding to this virtual bdev range_start: start address of this locking range range_length: length of this locking range password: admin password of base nvme bdev Returns: Name of the new created block devices. """ params = { 'nvme_ctrlr_name': nvme_ctrlr_name, 'nsid': nsid, 'locking_range_id': locking_range_id, 'range_start': range_start, 'range_length': range_length, 'password': password, } return client.call('bdev_opal_create', params) def bdev_opal_get_info(client, bdev_name, password): """Get opal locking range info. Args: bdev_name: name of opal vbdev to get info password: admin password Returns: Locking range info. """ params = { 'bdev_name': bdev_name, 'password': password, } return client.call('bdev_opal_get_info', params) def bdev_opal_delete(client, bdev_name, password): """Delete opal virtual bdev from the system. Args: bdev_name: name of opal vbdev to delete password: admin password of base nvme bdev """ params = { 'bdev_name': bdev_name, 'password': password, } return client.call('bdev_opal_delete', params) def bdev_opal_new_user(client, bdev_name, admin_password, user_id, user_password): """Add a user to opal bdev who can set lock state for this bdev. Args: bdev_name: name of opal vbdev admin_password: admin password user_id: ID of the user who will be added to this opal bdev user_password: password set for this user """ params = { 'bdev_name': bdev_name, 'admin_password': admin_password, 'user_id': user_id, 'user_password': user_password, } return client.call('bdev_opal_new_user', params) def bdev_opal_set_lock_state(client, bdev_name, user_id, password, lock_state): """set lock state for an opal bdev. Args: bdev_name: name of opal vbdev user_id: ID of the user who will set lock state password: password of the user lock_state: lock state to set """ params = { 'bdev_name': bdev_name, 'user_id': user_id, 'password': password, 'lock_state': lock_state, } return client.call('bdev_opal_set_lock_state', params) @deprecated_alias('construct_split_vbdev') def bdev_split_create(client, base_bdev, split_count, split_size_mb=None): """Create split block devices from a base bdev. Args: base_bdev: name of bdev to split split_count: number of split bdevs to create split_size_mb: size of each split volume in MiB (optional) Returns: List of created block devices. """ params = { 'base_bdev': base_bdev, 'split_count': split_count, } if split_size_mb: params['split_size_mb'] = split_size_mb return client.call('bdev_split_create', params) @deprecated_alias('destruct_split_vbdev') def bdev_split_delete(client, base_bdev): """Delete split block devices. Args: base_bdev: name of previously split bdev """ params = { 'base_bdev': base_bdev, } return client.call('bdev_split_delete', params) @deprecated_alias('construct_ftl_bdev') def bdev_ftl_create(client, name, base_bdev, **kwargs): """Construct FTL bdev Args: name: name of the bdev base_bdev: name of the base bdev kwargs: optional parameters """ params = {'name': name, 'base_bdev': base_bdev} for key, value in kwargs.items(): if value is not None: params[key] = value return client.call('bdev_ftl_create', params) @deprecated_alias('delete_ftl_bdev') def bdev_ftl_delete(client, name): """Delete FTL bdev Args: name: name of the bdev """ params = {'name': name} return client.call('bdev_ftl_delete', params) def bdev_ocssd_create(client, ctrlr_name, bdev_name, nsid=None, range=None): """Creates Open Channel zoned bdev on specified Open Channel controller Args: ctrlr_name: name of the OC NVMe controller bdev_name: name of the bdev to create nsid: namespace ID range: parallel unit range """ params = {'ctrlr_name': ctrlr_name, 'bdev_name': bdev_name} if nsid is not None: params['nsid'] = nsid if range is not None: params['range'] = range return client.call('bdev_ocssd_create', params) def bdev_ocssd_delete(client, name): """Deletes Open Channel bdev Args: name: name of the bdev """ params = {'name': name} return client.call('bdev_ocssd_delete', params) @deprecated_alias('get_bdevs') def bdev_get_bdevs(client, name=None): """Get information about block devices. Args: name: bdev name to query (optional; if omitted, query all bdevs) Returns: List of bdev information objects. """ params = {} if name: params['name'] = name return client.call('bdev_get_bdevs', params) @deprecated_alias('get_bdevs_iostat') def bdev_get_iostat(client, name=None): """Get I/O statistics for block devices. Args: name: bdev name to query (optional; if omitted, query all bdevs) Returns: I/O statistics for the requested block devices. """ params = {} if name: params['name'] = name return client.call('bdev_get_iostat', params) @deprecated_alias('enable_bdev_histogram') def bdev_enable_histogram(client, name, enable): """Control whether histogram is enabled for specified bdev. Args: bdev_name: name of bdev """ params = {'name': name, "enable": enable} return client.call('bdev_enable_histogram', params) @deprecated_alias('get_bdev_histogram') def bdev_get_histogram(client, name): """Get histogram for specified bdev. Args: bdev_name: name of bdev """ params = {'name': name} return client.call('bdev_get_histogram', params) @deprecated_alias('bdev_inject_error') def bdev_error_inject_error(client, name, io_type, error_type, num=1): """Inject an error via an error bdev. Args: name: name of error bdev io_type: one of "clear", "read", "write", "unmap", "flush", or "all" error_type: one of "failure" or "pending" num: number of commands to fail """ params = { 'name': name, 'io_type': io_type, 'error_type': error_type, 'num': num, } return client.call('bdev_error_inject_error', params) @deprecated_alias('set_bdev_qd_sampling_period') def bdev_set_qd_sampling_period(client, name, period): """Enable queue depth tracking on a specified bdev. Args: name: name of a bdev on which to track queue depth. period: period (in microseconds) at which to update the queue depth reading. If set to 0, polling will be disabled. """ params = {} params['name'] = name params['period'] = period return client.call('bdev_set_qd_sampling_period', params) @deprecated_alias('set_bdev_qos_limit') def bdev_set_qos_limit( client, name, rw_ios_per_sec=None, rw_mbytes_per_sec=None, r_mbytes_per_sec=None, w_mbytes_per_sec=None): """Set QoS rate limit on a block device. Args: name: name of block device rw_ios_per_sec: R/W IOs per second limit (>=10000, example: 20000). 0 means unlimited. rw_mbytes_per_sec: R/W megabytes per second limit (>=10, example: 100). 0 means unlimited. r_mbytes_per_sec: Read megabytes per second limit (>=10, example: 100). 0 means unlimited. w_mbytes_per_sec: Write megabytes per second limit (>=10, example: 100). 0 means unlimited. """ params = {} params['name'] = name if rw_ios_per_sec is not None: params['rw_ios_per_sec'] = rw_ios_per_sec if rw_mbytes_per_sec is not None: params['rw_mbytes_per_sec'] = rw_mbytes_per_sec if r_mbytes_per_sec is not None: params['r_mbytes_per_sec'] = r_mbytes_per_sec if w_mbytes_per_sec is not None: params['w_mbytes_per_sec'] = w_mbytes_per_sec return client.call('bdev_set_qos_limit', params) @deprecated_alias('apply_firmware') def bdev_nvme_apply_firmware(client, bdev_name, filename): """Download and commit firmware to NVMe device. Args: bdev_name: name of NVMe block device filename: filename of the firmware to download """ params = { 'filename': filename, 'bdev_name': bdev_name, } return client.call('bdev_nvme_apply_firmware', params)