On Feb 20 12:59, Jesper Devantier wrote:
> From: Jesper Wendel Devantier <j.devantier@samsung.com>
>
> Flexible Data Placement (FDP) is a newly introduced enhancement
> of the NVM command set introduced by the NVM Express, Inc.
> organization as TP 4146. FDP aims to extend the NVM command set
> to enable host-guided data placement. FDP-enabled namespaces
> can be used as before, but writes may now reference a specific
> placement id which in turn points to a reclaim unit (RU). RUs
> are defined as some amount of physical, non-volatile storage which
> can be erased/reused/repurposed without disturbing any other
> reclaim units.
>
> For further details on FDP, consult the specification, which is
> available as "TP4146 Flexible Data Placement 2022.11.30 Ratified.pdf"
> in the following link:
> https://nvmexpress.org/wp-content/uploads/NVM-Express-2.0-Ratified-TPs_20230111.zip
>
> The FDP work builds on 4 preparatory patches, chiefly to add support for
> endurance groups and directives.
> The final patch adds FDP support itself.
>
> Changelog:
> ==========
>
> * v2 -> v3:
> - remove unused trace points (Keith)
> - style nit - place '||' on preceding line (Keith)
> * v1 -> v2:
> - "hw/nvme: add fleible...": check that max 128 placement handles
> are being created (Keith)
> - removed unused NVMe directives struct (Keith)
>
> Gollu Appalanaidu (1):
> hw/nvme: basic directives support
>
> Jesper Devantier (1):
> hw/nvme: flexible data placement emulation
>
> Joel Granados (1):
> hw/nvme: move adjustment of data_units{read,written}
>
> Klaus Jensen (1):
> hw/nvme: add basic endurance group support
>
> Niklas Cassel (1):
> hw/nvme: store a pointer to the NvmeSubsystem in the NvmeNamespace
>
> hw/nvme/ctrl.c | 798 ++++++++++++++++++++++++++++++++++++++++++-
> hw/nvme/ns.c | 147 ++++++++
> hw/nvme/nvme.h | 92 ++++-
> hw/nvme/subsys.c | 94 ++++-
> hw/nvme/trace-events | 1 +
> include/block/nvme.h | 236 ++++++++++++-
> 6 files changed, 1341 insertions(+), 27 deletions(-)
>
Thanks,
applied to nvme-next.
I took the liberty of fixing up the commit message and adding the
missing DIV_ROUND_UP()'s.