SPDK v18.04: Logical Volume Snapshot/Clone, iSCSI Initiator, Bdev QoS, VPP Userspace TCP/IP

Apr 27, 2018 • Prital Shah

Today, the SPDK team is proud to announce the v18.04 release.

This release contains the following new features:

iSCSI target integration with VPP Userspace TCP/IP: The SPDK iSCSI target now supports the fd.io Vector Packet Processing (VPP) framework userspace TCP/IP stack.
Logical Volume Snapshot/Clone: Users may create snapshots of existing logical volumes and clones of existing snapshots.
Bdev QoS: Enforcement of IOPS limits for quality of service (QoS) has been added to the bdev layer. This capability will enable congestion management by throttling I/Os to block devices at the QoS rate.
Vhost: The SPDK vhost-scsi, vhost-blk and vhost-nvme applications have fixes to address the DPDK rte_vhost vulnerability CVE-2018-1059. Please see this security advisory for additional information on the DPDK vulnerability.
Unified Target Application: A new unified SPDK target application has been added. This application combines the functionality of iSCSI target, NVMe-oF target, and vhost target.
Virtio Block device: A userspace driver for Virtio Block devices has been added.
Virtio with 2MB hugepages: Enables SPDK Virtio to work with 2MB hugepages.

Also, we have added the following experimental features:

iSCSI Initiator: A SPDK iSCSI initiator bdev module has been added.
Vhost NVMe: Support for vhost-nvme has been added to the SPDK vhost target.
SPDKCLI: Interactive command tool for managing SPDK is available.
NVMe CMB: Support for WDS and RDS capable CMBs in NVMe controllers has been added.
RPC: Partial JSON configuration save/load support has been added to several subsystems.

Contributors

Thanks to everyone who contributed patches to the SPDK v18.04 release: