[PATCH 00/18] hw/block/nvme: Support Namespace Types and Zoned Namespace Command Set

[Dmitry Fomichev]

Zoned Namespace (ZNS) Command Set is a newly introduced command set
published by the NVM Express, Inc. organization as TP 4053. The main
design goals of ZNS are to provide hardware designers the means to
reduce NVMe controller complexity and to allow achieving a better I/O
latency and throughput. SSDs that implement this interface are
commonly known as ZNS SSDs.

This command set is implementing a zoned storage model, similarly to
ZAC/ZBC. As such, there is already support in Linux, allowing one to
perform the majority of tasks needed for managing ZNS SSDs.

The Zoned Namespace Command Set relies on another TP, known as
Namespace Types (NVMe TP 4056), which introduces support for having
multiple command sets per namespace.

Both ZNS and Namespace Types specifications can be downloaded by
visiting the following link -

https://nvmexpress.org/wp-content/uploads/NVM-Express-1.4-Ratified-TPs.zip

This patch series adds Namespace Types support and zoned namespace
emulation capability to the existing NVMe PCI driver.

The patchset is organized as follows -

The first several patches are preparatory and are added to allow for
an easier review of the subsequent commits. The group of patches that
follows adds NS Types support with only NVM Command Set being
available. Finally, the last group of commits makes definitions and
adds new code to support Zoned Namespace Command Set.

This series is based on block-next/block branch.

Based-on: <20200608190821.3293867-1-eblake@redhat.com>

Ajay Joshi (1):
  hw/block/nvme: Define 64 bit cqe.result

Dmitry Fomichev (15):
  hw/block/nvme: Move NvmeRequest has_sg field to a bit flag
  hw/block/nvme: Clean up unused AER definitions
  hw/block/nvme: Add Commands Supported and Effects log
  hw/block/nvme: Define trace events related to NS Types
  hw/block/nvme: Make Zoned NS Command Set definitions
  hw/block/nvme: Define Zoned NS Command Set trace events
  hw/block/nvme: Support Zoned Namespace Command Set
  hw/block/nvme: Introduce max active and open zone limits
  hw/block/nvme: Simulate Zone Active excursions
  hw/block/nvme: Set Finish/Reset Zone Recommended attributes
  hw/block/nvme: Generate zone AENs
  hw/block/nvme: Support Zone Descriptor Extensions
  hw/block/nvme: Add injection of Offline/Read-Only zones
  hw/block/nvme: Use zone metadata file for persistence
  hw/block/nvme: Document zoned parameters in usage text

Niklas Cassel (2):
  hw/block/nvme: Introduce the Namespace Types definitions
  hw/block/nvme: Add support for Namespace Types

 block/nvme.c          |    2 +-
 block/trace-events    |    2 +-
 hw/block/nvme.c       | 2316 ++++++++++++++++++++++++++++++++++++++++-
 hw/block/nvme.h       |  228 +++-
 hw/block/trace-events |   56 +
 include/block/nvme.h  |  282 ++++-
 6 files changed, 2820 insertions(+), 66 deletions(-)

-- 
2.21.0