diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/removed/sysfs-bus-nfit | 17 | ||||
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-nfit | 19 |
2 files changed, 17 insertions, 19 deletions
diff --git a/Documentation/ABI/removed/sysfs-bus-nfit b/Documentation/ABI/removed/sysfs-bus-nfit new file mode 100644 index 000000000000..ae8c1ca53828 --- /dev/null +++ b/Documentation/ABI/removed/sysfs-bus-nfit @@ -0,0 +1,17 @@ +What: /sys/bus/nd/devices/regionX/nfit/ecc_unit_size +Date: Aug, 2017 +KernelVersion: v4.14 (Removed v4.18) +Contact: linux-nvdimm@lists.01.org +Description: + (RO) Size of a write request to a DIMM that will not incur a + read-modify-write cycle at the memory controller. + + When the nfit driver initializes it runs an ARS (Address Range + Scrub) operation across every pmem range. Part of that process + involves determining the ARS capabilities of a given address + range. One of the capabilities that is reported is the 'Clear + Uncorrectable Error Range Length Unit Size' (see: ACPI 6.2 + section 9.20.7.4 Function Index 1 - Query ARS Capabilities). + This property indicates the boundary at which the NVDIMM may + need to perform read-modify-write cycles to maintain ECC (Error + Correcting Code) blocks. diff --git a/Documentation/ABI/testing/sysfs-bus-nfit b/Documentation/ABI/testing/sysfs-bus-nfit index 619eb8ca0f99..a1cb44dcb908 100644 --- a/Documentation/ABI/testing/sysfs-bus-nfit +++ b/Documentation/ABI/testing/sysfs-bus-nfit @@ -212,22 +212,3 @@ Description: range. Used by NVDIMM Region Mapping Structure to uniquely refer to this structure. Value of 0 is reserved and not used as an index. - - -What: /sys/bus/nd/devices/regionX/nfit/ecc_unit_size -Date: Aug, 2017 -KernelVersion: v4.14 -Contact: linux-nvdimm@lists.01.org -Description: - (RO) Size of a write request to a DIMM that will not incur a - read-modify-write cycle at the memory controller. - - When the nfit driver initializes it runs an ARS (Address Range - Scrub) operation across every pmem range. Part of that process - involves determining the ARS capabilities of a given address - range. One of the capabilities that is reported is the 'Clear - Uncorrectable Error Range Length Unit Size' (see: ACPI 6.2 - section 9.20.7.4 Function Index 1 - Query ARS Capabilities). - This property indicates the boundary at which the NVDIMM may - need to perform read-modify-write cycles to maintain ECC (Error - Correcting Code) blocks. |