Re: [PATCH v7 00/16] libnvdimm: non-volatile memory devices

From: Toshi Kani
Date: Wed Jun 24 2015 - 20:59:49 EST


On Wed, 2015-06-17 at 19:13 -0400, Dan Williams wrote:
> A new sub-system in support of non-volatile memory storage devices.
>
> Stephen, please add libnvdimm-for-next to -next:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm libnvdimm-for-next
>
> Changes since v6 [1]:
>
> 1/ Deferred the patches dependent on ->rw_bytes() (BTT - stacked block
> driver, BLK - mmio aperture windows driver, NFIT_TEST - unit test
> infrastructure for all libnvdimm + nfit components) to their own
> patchset. Make the ->rw_bytes() implementation the first patch in
> that series (Christoph)
>
> 2/ Collected acks from Christoph and Rafael!
>
> 3/ Add a HAS_IOMEM dependency to CONFIG_BLK_DEV_PMEM following commit
> b6f2098fb708 "block: pmem: Add dependency on HAS_IOMEM" in 4.1-rc8.
>
> 4/ Move libnvdimm to subsys_initcall() and move arch/x86/kernel/pmem.c
> back to device_initcall(). This allows ACPI_NFIT to be built-in.
> (Linda)
>
> 5/ Drop the ACPI_DRIVER_ALL_NOTIFY_EVENTS flag in the nfit driver.
> (Rafael)
>
> 6/ Reference count the nvdimm_drvdata object. This fixes a bug that was
> found when the unit tests were extended to test disabling an nvdimm
> while a region device still had references to label data.
>
:
> Dan Williams (16):
> e820, efi: add ACPI 6.0 persistent memory types
> libnvdimm, nfit: initial libnvdimm infrastructure and NFIT support
> libnvdimm: control character device and nvdimm_bus sysfs attributes
> libnvdimm, nfit: dimm/memory-devices
> libnvdimm: control (ioctl) messages for nvdimm_bus and nvdimm devices
> libnvdimm, nvdimm: dimm driver and base libnvdimm device-driver infrastructure
> libnvdimm, nfit: regions (block-data-window, persistent memory, volatile memory)
> libnvdimm: support for legacy (non-aliasing) nvdimms
> libnvdimm, pmem: move pmem to drivers/nvdimm/
> libnvdimm, pmem: add libnvdimm support to the pmem driver
> libnvdimm, nfit: add interleave-set state-tracking infrastructure
> libnvdimm: namespace indices: read and validate
> libnvdimm: pmem label sets and namespace instantiation.
> libnvdimm: blk labels and namespace instantiation
> libnvdimm: write pmem label set
> libnvdimm: write blk label set

We have been successfully running this patchset on our NFIT-enabled
prototype systems with pmem. (Intel example _DSM, label, blk are not
available for testing.)

So for patch 1/16 to 4/15, and 6/16 to 10/16.

Tested-by: Toshi Kani <toshi.kani@xxxxxx>

Thanks,
-Toshi

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