On 02/08/2018 10:35 AM, Javier Gonzalez wrote:
On 5 Feb 2018, at 13.15, Matias Bjørling <m...@lightnvm.io> wrote:


A couple of patches for 2.0 support for the lightnvm subsystem. They
form the basis for integrating 2.0 support.

For the rest of the support, Javier has code that implements report
chunk and sets up the LBA format data structure. He also has a bunch
of patches that brings pblk up to speed.

The first two patches is preparation for the 2.0 work. The third patch
implements the 2.0 data structures, the geometry command, and exposes
the sysfs attributes that comes with the 2.0 specification. Note that
the attributes between 1.2 and 2.0 are different, and it is expected
that user-space shall use the version sysfs attribute to know which
attributes will be available.

The last patch implements support for using the nvme namespace logical
block and metadata fields and sync it with the internal lightnvm
identify structures.


Matias Bjørling (4):
  lightnvm: make 1.2 data structures explicit
  lightnvm: flatten nvm_id_group into nvm_id
  lightnvm: add 2.0 geometry identification
  nvme: lightnvm: add late setup of block size and metadata

drivers/lightnvm/core.c      |  27 ++-
drivers/nvme/host/core.c     |   2 +
drivers/nvme/host/lightnvm.c | 508 ++++++++++++++++++++++++++++++++-----------
drivers/nvme/host/nvme.h     |   2 +
include/linux/lightnvm.h     |  64 +++---
5 files changed, 426 insertions(+), 177 deletions(-)


Thanks for posting these. I have started rebasing my patches on top of
the new geometry - it is a bit different of how I implemented it, but
I'll take care of it.

I'll review as I go - some of the changes I have might make sense to
squash in your patches to keep a clean history...


I'll add a couple of patches abstracting the geometry so that at core.c
level we only work with a single geometry structure. This is they way it
is done in the early patches I pointe you to before. Then it is patches
building bottom-up support for the new features in 2.0.

Yep, I was expecting that. I skipped that part since it went into pblk and you already had some patches for it.


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