linux-dev/tools/testing/nvdimm/test/ndtest.c, branch linus/master

nvdimm/region: Delete nd_blk_region infrastructure

2022-03-11T23:53:13Z

Now that the nd_namespace_blk infrastructure is removed, delete all the region machinery to coordinate provisioning aliased capacity between PMEM and BLK. Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/164688418803.2879318.1302315202397235855.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams

dax: Kill DEV_DAX_PMEM_COMPAT

2021-11-25T03:21:35Z

The /sys/class/dax compatibility option has shipped in the kernel for 4 years now which should be sufficient time for tools to abandon the old ABI in favor of the /sys/bus/dax device-model. Delete it now and see if anyone screams. Since this compatibility option shipped there has been more reports of users being surprised by the compat ABI than surprised by the "new", so the compat infrastructure has outlived its usefulness. Recall that /sys/bus/dax device-model is required for the dax kmem driver which allows PMEM to be used as "System RAM". The following projects were known to have a dependency on /sys/class/dax and have dropped their dependency as of the listed version: - ndctl (including libndctl, daxctl, and libdaxctl): v64+ - fio: v3.13+ - pmdk: v1.5.2+ As further evidence this option is no longer needed some distributions have already stopped enabling CONFIG_DEV_DAX_PMEM_COMPAT. Cc: Ira Weiny Cc: Dave Jiang Reported-by: Vishal Verma Acked-by: Dave Hansen Reviewed-by: Jane Chu Link: https://lore.kernel.org/r/163701116195.3784476.726128179293466337.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams

ndtest: Add papr health related flags

2021-01-28T08:22:49Z

sysfs attibutes to show health related flags are added. Signed-off-by: Santosh Sivaraj Link: https://lore.kernel.org/r/20201222042240.2983755-8-santosh@fossix.org Signed-off-by: Dan Williams

ndtest: Add nvdimm control functions

2021-01-28T08:22:49Z

Add functions to support ND_CMD_GET_CONFIG_SIZE, ND_CMD_SET_CONFIG_DATA and ND_CMD_GET_CONFIG_DATA. Signed-off-by: Santosh Sivaraj Link: https://lore.kernel.org/r/20201222042240.2983755-7-santosh@fossix.org Signed-off-by: Dan Williams

ndtest: Add regions and mappings to the test buses

2021-01-28T08:22:49Z

The bus config array is used to hold the regions and the respective mappings. This config based interface enables to change the dimm/region/namespace layouts easily. Signed-off-by: Santosh Sivaraj Link: https://lore.kernel.org/r/20201222042240.2983755-6-santosh@fossix.org Signed-off-by: Dan Williams

ndtest: Add dimm attributes

2021-01-28T08:22:49Z

This patch adds sysfs attributes for nvdimm and the dimm device. Signed-off-by: Santosh Sivaraj Link: https://lore.kernel.org/r/20201222042240.2983755-5-santosh@fossix.org Signed-off-by: Dan Williams

ndtest: Add dimms to the two buses

2021-01-28T08:22:49Z

A config array is used to hold the dimms for each bus. These dimms are registered with nvdimm, and new nvdimms are created on the buses. Signed-off-by: Santosh Sivaraj Link: https://lore.kernel.org/r/20201222042240.2983755-4-santosh@fossix.org Signed-off-by: Dan Williams

ndtest: Add compatability string to treat it as PAPR family

2021-01-28T08:22:49Z

Since this module is written to be platform agnostic, the module is made part of the PAPR_FAMILY. ndctl identifies the family using the compatible string inside of_node dir-entry. Signed-off-by: Santosh Sivaraj Link: https://lore.kernel.org/r/20201222042240.2983755-3-santosh@fossix.org Signed-off-by: Dan Williams

testing/nvdimm: Add test module for non-nfit platforms

2021-01-28T08:22:48Z

The current test module cannot be used for testing platforms (make check) that do not have support for NFIT. In order to get the ndctl tests working, we need a module which can emulate NVDIMM devices without relying on ACPI/NFIT. The aim of this proposed module is to implement a similar functionality to the existing module but without the ACPI dependencies. This RFC series is split into reviewable and compilable chunks. This patch adds a new driver and registers two nvdimm bus needed for ndctl make check. Signed-off-by: Santosh Sivaraj Link: https://lore.kernel.org/r/20201222042240.2983755-2-santosh@fossix.org Signed-off-by: Dan Williams