diff --git a/CHANGELOG.md b/CHANGELOG.md index 1cb836ece..cf9b853af 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,16 +1,13 @@ Changelog ========= -Upcoming release ----------------- +v16.08: iSCSI target, NVMf maturity +----------------------------------- +This release adds a userspace iSCSI target. The iSCSI target is capable of exporting +NVMe devices over a network using the iSCSI protocol. The application is located +in app/iscsi_tgt and a documented configuration file can be found at etc/spdk/spdk.conf.in. -- NVMe - - The Weighted Round Robin arbitration method is now supported. This allows - the user to specify different priorities on a per-I/O-queue basis. To - enable WRR, set the `arb_mechanism` field during `spdk_nvme_probe()`. - - A simplified "Hello World" example was added to show the proper way to use - the NVMe library API; see `examples/nvme/hello_world/hello_world.c`. -- NVMe over Fabrics +This release also significantly improves the existing NVMe over Fabrics target. - The configuration file format was changed, which will require updates to any existing nvmf.conf files (see `etc/spdk/nvmf.conf.in`): - `SubsystemGroup` was renamed to `Subsystem`. @@ -18,7 +15,25 @@ Upcoming release - `nvmf_tgt` was updated to correctly recognize NQN (NVMe Qualified Names) when naming subsystems. The default node name was changed to reflect this; it is now "nqn.2016-06.io.spdk". + - `Port` and `Host` sections were merged into the `Subsystem` section + - Global options to control max queue depth, number of queues, max I/O + size, and max in-capsule data size were added. + - The Nvme section was removed. Now a list of devices is specified by + bus/device/function directly in the Subsystem section. + - Subsystems now have a Mode, which can be Direct or Virtual. This is an attempt + to future-proof the interface, so the only mode supported by this release + is "Direct". - Many bug fixes and cleanups were applied to the `nvmf_tgt` app and library. + - The target now supports discovery. + +This release also adds one new feature and provides some better examples and tools +for the NVMe driver. + - The Weighted Round Robin arbitration method is now supported. This allows + the user to specify different priorities on a per-I/O-queue basis. To + enable WRR, set the `arb_mechanism` field during `spdk_nvme_probe()`. + - A simplified "Hello World" example was added to show the proper way to use + the NVMe library API; see `examples/nvme/hello_world/hello_world.c`. + - A test for measuring software overhead was added. See `test/lib/nvme/overhead`. v16.06: NVMf userspace target -----------------------------