ivampiresp/Spdk
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

CHANGELOG: add missing entries for SPDK 22.09

Browse Source 
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I2507a58f19a4f76a01caf7cfce788f69dba3e35b
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14757
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This commit is contained in:
Tomasz Zawadzki 2022-09-29 17:50:30 +02:00
parent 030951b454
commit 5accac26fd
1 changed files with 43 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
CHANGELOG.md
View File

@ -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.