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| author | Dan Williams <dan.j.williams@intel.com> | 2016-02-17 22:08:58 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-02-24 02:17:20 +0100 |
| commit | 4577b0665515e0abc7bc72562d6328d179598815 (patch) | |
| tree | 8f12403a354a91c3ca67809697dcd6099d5f1bf1 /drivers/acpi/nfit.c | |
| parent | libnvdimm, tools/testing/nvdimm: fix 'ars_status' output buffer sizing (diff) | |
| download | linux-4577b0665515e0abc7bc72562d6328d179598815.tar.xz linux-4577b0665515e0abc7bc72562d6328d179598815.zip | |
nfit: update address range scrub commands to the acpi 6.1 format
The original format of these commands from the "NVDIMM DSM Interface
Example" [1] are superseded by the ACPI 6.1 definition of the "NVDIMM Root
Device _DSMs" [2].
[1]: http://pmem.io/documents/NVDIMM_DSM_Interface_Example.pdf
[2]: http://www.uefi.org/sites/default/files/resources/ACPI_6_1.pdf
"9.20.7 NVDIMM Root Device _DSMs"
Changes include:
1/ New 'restart' fields in ars_status, unfortunately these are
implemented in the middle of the existing definition so this change
is not backwards compatible. The expectation is that shipping
platforms will only ever support the ACPI 6.1 definition.
2/ New status values for ars_start ('busy') and ars_status ('overflow').
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Linda Knippers <linda.knippers@hpe.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/acpi/nfit.c')
| -rw-r--r-- | drivers/acpi/nfit.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c index 1d4b9c6bdf45..fb53db187854 100644 --- a/drivers/acpi/nfit.c +++ b/drivers/acpi/nfit.c @@ -1503,9 +1503,7 @@ static int ars_do_start(struct nvdimm_bus_descriptor *nd_desc, case 1: /* ARS unsupported, but we should never get here */ return 0; - case 2: - return -EINVAL; - case 3: + case 6: /* ARS is in progress */ msleep(1000); break; @@ -1537,6 +1535,8 @@ static int ars_get_status(struct nvdimm_bus_descriptor *nd_desc, case 2: /* No ARS performed for the current boot */ return 0; + case 3: + /* TODO: error list overflow support */ default: return -ENXIO; } |