accel
Added API spdk_accel_submit_xor to perform XOR.
Configuration of mlx5_pci driver of accel_dpdk_cryptodev module was changed. Now key and key2
should have equal length and key size in hexlified form can be either 32 bytes for 128b XTS key or
64 bytes for 256b XTS key. Support of the wrapped crypto credentials mode for this driver is
dropped, only plain text mode is supported.
The accel library will now collect statistics on the number of executed operations and processed
bytes. These statistics can be retreived using the accel_get_stats RPC.
Added support for appending a crc32 calculation to an accel sequence.
bdev
A new API spdk_bdev_module_claim_bdev_desc was added. Unlike spdk_bdev_module_claim_bdev, this
function requires a bdev descriptor to be passed and the claim is automatically released when the
descriptor is closed. It allows bdev modules to claim bdevs as a single writer, multiple writers, or
multiple readers.
New APIs spdk_bdev_quiesce, spdk_bdev_unquiesce, spdk_bdev_quiesce_range and
spdk_bdev_unquiesce_range were added. These allow I/O to be quiesced on an entire bdev or
a specified LBA range.
Removed spdk_bdev_ext_io_opts from spdk_bdev_io and replaced it with fields that were missing in
spdk_bdev_io.
It is now possible to submit an I/O with an associated accel sequence. All operations in such
sequence will be executed prior to sending the I/O (writes) or after its completion (reads).
env
New functions spdk_env_get_main_core and spdk_env_get_cpuset were added.
It is now possible to run applications on cores with IDs greater than 128 by passing a core map
using the --lcores parameter.
examples
examples/nvme/perf application now accepts --use-every-core parameter that changes
the existing worker and namespace association logic to access every namespace from each worker.
This replicates behavior of bdevperf application when -C option is provided.
gpt
GPT bdevs now use the GPT Unique Partition ID as the bdev's UUID.
idxd
Removed the SPDK_IDXD_FLAG_PERSISTENT flag.
lvol
New API spdk_lvol_iter_immediate_clones was added to iterate the clones of an lvol.
New APIs spdk_lvol_get_by_uuid and spdk_lvol_get_by_names to get lvols by the lvol's UUID or
lvstore and lvol names.
New bdev_lvol_get_lvols RPC to list logical volumes. This provides information about logical
volumes without providing information about the bdevs. It is useful for listing the lvols
associated with specific lvol stores and for listing lvols that are degraded and have no
associated bdev.
Added support for external snapshots making it possible to create clones of any (including non-lvol)
bdev. Users can create such clones using the bdev_lvol_clone_bdev RPC.
nvme
New API spdk_nvme_ns_get_format_index was added to calculate the exact format index, that
was used to format the namespace.
Added two new APIs spdk_nvme_ns_cmd_io_mgmt_recv and spdk_nvme_ns_cmd_io_mgmt_send to
receive and send the I/O management commands.
nvmf
New spdk_nvmf_request_copy_to/from_buf() APIs have been added, which support
iovecs, unlike the deprecated spdk_nvmf_request_get_data().
Two functions related to Asynchronous Event and error handling have been made public:
spdk_nvmf_ctrlr_async_event_error_event,spdk_nvmf_ctrlr_abort_aer.
New spdk_nvmf_transport_create_async was added, it accepts a callback and callback argument.
spdk_nvmf_transport_create is marked deprecated.
Parameters cb_fn and ctx of spdk_nvmf_qpair_disconnect API are deprecated. These parameters
will be removed in 23.09 release.
Added a secure_channel parameter to the nvmf_subsystem_add_listener RPC. When true, all
connections established via this listener will immediately attempt to establish a secure channel,
prior to any authentication. Only valid for the TCP transport.
Added two optional transport module callbacks: subsystem_add_host() and subsystem_remove_host().
These functions will notify a transport about adding/removing hosts' access.
TLS PSK identity is now generated from subsystem NQN and host NQN. PSK interchange format is now
expected as input, when configuring TLS in SPDK. TLS feature is considered experimental.
part
New API spdk_bdev_part_construct_ext is added and allows the bdev's UUID to be specified.
sock
Added a zero copy receive interface allowing users to provide buffers to a socket group (via
spdk_sock_group_provide_buf()), which will then get filled with the next portions of the stream on
each socket. After that, pointer to the buffer holding the next part of the data can be obtained
using spdk_sock_recv_next().
Added a callback get_key() to spdk_sock_impl_opts structure.
New function spdk_sock_get_impl_name() was added to retrieve current socket implementation name.
thread
Added two new APIs spdk_thread_bind and spdk_thread_is_bound to bind or unbind spdk_thread
to its current CPU core, and check bound status.
ublk
Enabled support for UBLK_F_NEED_GET_DATA. The buffers are no longer pre-allocated during
initialization, but are allocated on-demand. Additionally, they're now allocated from the iobuf
buffer pools.
util
New APIs spdk_uuid_is_null and spdk_uuid_set_null were added to compare and
set UUID to NULL value.
Added new functions, spdk_fd_group_{nest,unnest}, providing efficient way of adding one
fd_group's file descriptors to another fd_group.