[U-Boot] [PATCH 0/8] nvme: Add NVM Express driver support

Tom Rini trini at konsulko.com
Thu Aug 10 01:31:31 UTC 2017


On Thu, Aug 10, 2017 at 06:40:57AM +0800, Bin Meng wrote:
> Hi Tom,
> 
> On Thu, Aug 3, 2017 at 5:30 PM, Bin Meng <bmeng.cn at gmail.com> wrote:
> > This series adds NVM Express driver support to U-Boot.
> >
> > This series is based on previous RFC v2 patchset [1][2] done by
> > Zhikang Zhang and Wenbin Song, as well as Jon Nettleton's fixes
> > [3] on top of the RFC v1.
> >
> > The patches are organized in a way that meets the requirement
> > of upstream. Jon's fixes were squashed/integrated with a proper
> > order in this series.
> >
> > The original RFC driver was cleaned up a lot, to remove the
> > compilation limitation on non-ARMv8 architecture (including a
> > header file from armv8), drop the board_r.c modification, drop
> > unnecessary PCI configuration space initialization, add 32-bit
> > architecture support of readq/writeq operations, eliminate
> > compiler warnings, as well as coding convention clean up, plus
> > a fix to a bug that is exposed by QEMU platform.
> >
> > Tested with an Intel SSD 750 series NVMe 400GB card, a Plextor
> > NVMe SSD M8Pe Series 256GB card, on Intel Crown Bay board, as
> > well as QEMU x86 emulation platform.
> >
> > This series is available at u-boot-x86/nvme-working for testing.
> >
> > [1] http://patchwork.ozlabs.org/patch/753088/
> > [2] http://patchwork.ozlabs.org/patch/753089/
> > [3] http://patchwork.ozlabs.org/patch/794909/
> >
> >
> > Bin Meng (2):
> >   nvme: Handle zero Maximum Data Transfer Size (MDTS)
> >   x86: qemu: Enable NVMe driver
> >
> > Jon Nettleton (2):
> >   nvme: Detect devices that are class Storage Express
> >   nvme: Fix number of blocks detection
> >
> > Zhikang Zhang (4):
> >   dm: blk: part: Add UCLASS_NVME and IF_TYPE_NVME
> >   nvme: Add NVM Express driver support
> >   nvme: Add show routine to print detailed information
> >   nvme: Add nvme commands
> >
> >  cmd/Kconfig                |   7 +
> >  cmd/Makefile               |   1 +
> >  cmd/nvme.c                 | 197 +++++++++++
> >  configs/qemu-x86_defconfig |   1 +
> >  disk/part.c                |   6 +-
> >  doc/README.nvme            |  86 +++++
> >  drivers/Kconfig            |   2 +
> >  drivers/Makefile           |   1 +
> >  drivers/block/blk-uclass.c |   2 +
> >  drivers/nvme/Kconfig       |  12 +
> >  drivers/nvme/Makefile      |   7 +
> >  drivers/nvme/nvme-uclass.c |  62 ++++
> >  drivers/nvme/nvme.c        | 860 +++++++++++++++++++++++++++++++++++++++++++++
> >  drivers/nvme/nvme.h        | 717 +++++++++++++++++++++++++++++++++++++
> >  drivers/nvme/nvme_show.c   | 127 +++++++
> >  include/blk.h              |   1 +
> >  include/dm/uclass-id.h     |   1 +
> >  include/nvme.h             |  82 +++++
> >  include/pci_ids.h          |   1 +
> >  19 files changed, 2172 insertions(+), 1 deletion(-)
> >  create mode 100644 cmd/nvme.c
> >  create mode 100644 doc/README.nvme
> >  create mode 100644 drivers/nvme/Kconfig
> >  create mode 100644 drivers/nvme/Makefile
> >  create mode 100644 drivers/nvme/nvme-uclass.c
> >  create mode 100644 drivers/nvme/nvme.c
> >  create mode 100644 drivers/nvme/nvme.h
> >  create mode 100644 drivers/nvme/nvme_show.c
> >  create mode 100644 include/nvme.h
> 
> Do you think this NVMe support can be included in 2017.09? If yes (and
> no other review comments from the list), I can apply and for you to
> pull via the x86 tree.

I've reviewed it, and things look good.  I'll pick it up in a day or
two.  My question now is, can this also be enabled for sandbox, given
that we have PCI there?  Thanks!

-- 
Tom
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