Commit 5accac26 authored by Tomasz Zawadzki's avatar Tomasz Zawadzki
Browse files

CHANGELOG: add missing entries for SPDK 22.09 



Signed-off-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I2507a58f19a4f76a01caf7cfce788f69dba3e35b
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14757


Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
parent 030951b4

CHANGELOG.md

+43 −0
Original line number Diff line number Diff line
@@ -25,6 +25,19 @@ thread for each bdev_io submitted to the bdev. 
A new API `spdk_bdev_get_current_qd` was added to measure and return the queue depth from a

bdev. This API is available even when queue depth sampling is disabled.



Added `spdk_bdev_seek_data`, `spdk_bdev_seek_hole` and `spdk_bdev_io_get_seek_offset` functions

that start from a given offset and seek for next data or for next hole. At this time only

supported by lvol bdev module.



A new parameter `io_drain_timeout` has been added to `spdk_bdev` structure. It controls how long

a bdev reset must wait for IO to complete prior to issuing a reset to the underlying device.

If there is no outstanding IO at the end of that period, the reset is skipped.

Best defined for bdevs that share an underlying bdev, such as multiple lvol bdevs sharing

an nvme device, to avoid unnecessarily resetting the underlying bdev and affecting other

bdevs that are sharing it.

Modifying this field is optional. Setting the value to 0 keeps the original behavior

to always send resets immediately, even if there is no I/O outstanding.



### blobstore



Reserve space for `used_clusters` bitmap. The reserved space could be used for blobstore growing
@@ -33,11 +46,33 @@ in the future. 
Added `is_zeroes` operation to `spdk_bs_dev`. It allows to detect if logical blocks are backed

by zeroes device and do a shortcut in copy-on-write flow by excluding copy part from zeroes device.



Added `spdk_blob_get_next_allocated_io_unit` and `spdk_blob_get_next_unallocated_io_unit` functions

that start from a given offset and seek for first io_unit belonging to an allocated cluster

or first io_unit belonging to an unallocated cluster.



Added `spdk_bs_grow` function to grow blobstore size if the underlying bdev size is increased.

This is used by lvol bdev via `bdev_lvol_grow_lvstore` RPC.



### daos



Added new DAOS bdev module, that creates SPDK block device on top of DAOS DFS.

Please see [documentation](https://spdk.io/doc/bdev.html#bdev_config_daos) for more details.



### env



Added `spdk_pci_register_device_provider` and matching `SPDK_PCI_REGISTER_DEVICE_PROVIDER`

functions for registering PCI device providers. That allow the VMD driver to be notified

when users want to attach a device under a given BDF and when a device is detached.



### init



`spdk_subsystem_init_from_json_config` now fails if the JSON configuration file is not

an object with an array named "subsystems".



### iscsi



Added `bdev_iscsi_set_options` RPC to modify options of the iSCSI bdev module.



### json



Added `spdk_json_find` API return errcode: EPROTOTYPE - json not enclosed in {}.
@@ -111,6 +146,12 @@ Added new functions: `spdk_hexlify` and `spdk_unhexlify`. 
A new API `spdk_xor_gen` was added to generate XOR from multiple source buffers. It is going to be

used by `raid5f` for calculating parity.



### vfu_tgt



Added vfu_tgt library abstraction based on libvfio-user for PCI device emulation.

Besides the NVMe device emulation, its now possible to emulate virtio-blk and virtio-scsi

devices.



### virtio



virtio-vhost-user no longer tries to support dynamic memory allocation.  The vhost target does
@@ -121,6 +162,8 @@ start/stop. Applications using the virtio library in vhost-user mode should now 
the application's memory using the -s/--mem-size option and use single shared memory file

segments using the -g/--single-file-segments option.



Added `vfio-user` transport type for virtio-blk and virtio-scsi devices.



### vmd



Fixed hotplug when a device is inserted in a slot in which a disk was already enumerated previously.