[0/7] PMEM device emulation without nfit depenency

Message

Santosh Sivaraj Dec. 22, 2020, 4:22 a.m. UTC

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 emulated PMEM device is made part of the PAPR family.

Corresponding changes for ndctl is also required, to add attributes needed
for the test, which will be sent as a reply to this patch.

None of tests passed on PAPR before, now there are 16 test that pass. Error
injection tests and SMART are not yet implemented.

Santosh Sivaraj (7):
  testing/nvdimm: Add test module for non-nfit platforms
  ndtest: Add compatability string to treat it as PAPR family
  ndtest: Add dimms to the two buses
  ndtest: Add dimm attributes
  ndtest: Add regions and mappings to the test buses
  ndtest: Add nvdimm control functions
  ndtest: Add papr health related flags

 tools/testing/nvdimm/config_check.c |    3 +-
 tools/testing/nvdimm/test/Kbuild    |    6 +-
 tools/testing/nvdimm/test/ndtest.c  | 1138 +++++++++++++++++++++++++++
 tools/testing/nvdimm/test/ndtest.h  |  109 +++
 4 files changed, 1254 insertions(+), 2 deletions(-)
 create mode 100644 tools/testing/nvdimm/test/ndtest.c
 create mode 100644 tools/testing/nvdimm/test/ndtest.h

Comments

Dan Williams Dec. 24, 2020, 6:26 p.m. UTC | #1

On Mon, Dec 21, 2020 at 8:23 PM Santosh Sivaraj <[e-mail]> wrote:
>
> 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 emulated PMEM device is made part of the PAPR family.
>
> Corresponding changes for ndctl is also required, to add attributes needed
> for the test, which will be sent as a reply to this patch.
>
> None of tests passed on PAPR before, now there are 16 test that pass. Error
> injection tests and SMART are not yet implemented.
>

Thanks Santosh, I'll circle back to this after the holiday break. I
assume it can go in for v5.11 post -rc1 since it has zero regression
risk.