Re: [PATCH v2 10/10] docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document affinity_domain_via_partition sysfs interface file
Hi, Same correction comments as in the other 4 patches (not repeated here). On 7/10/23 02:27, Kajol Jain wrote: > Add details of the new hv-gpci interface file called > "affinity_domain_via_partition" in the ABI documentation. > > Signed-off-by: Kajol Jain > --- > .../sysfs-bus-event_source-devices-hv_gpci| 32 +++ > 1 file changed, 32 insertions(+) > > diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci > b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci > index d8e65b93d1f7..b03b2bd4b081 100644 > --- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci > +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci > @@ -208,3 +208,35 @@ Description: admin read only > more information. > > * "-EFBIG" : System information exceeds PAGE_SIZE. > + > +What: > /sys/devices/hv_gpci/interface/affinity_domain_via_partition > +Date:July 2023 > +Contact: Linux on PowerPC Developer List > +Description: admin read only > + This sysfs file exposes the system topology information by > making HCALL > + H_GET_PERF_COUNTER_INFO. The HCALL is made with counter request > value > + AFFINITY_DOMAIN_INFORMATION_BY_PARTITION(0xB1). > + > + * This sysfs file will be created only for power10 and above > platforms. > + > + * User needs root privileges to read data from this sysfs file. > + > + * This sysfs file will be created, only when the HCALL returns > "H_SUCESS", > + "H_AUTHORITY" and "H_PARAMETER" as the return type. > + > + HCALL with return error type "H_AUTHORITY", can be resolved > during > + runtime by setting "Enable Performance Information > Collection" option. > + > + * The end user reading this sysfs file must decode the content > as per > + underlying platform/firmware. > + > + Possible error codes while reading this sysfs file: > + > + * "-EPERM" : Partition is not permitted to retrieve performance > information, > + required to set "Enable Performance Information > Collection" option. > + > + * "-EIO" : Can't retrieve system information because of invalid > buffer length/invalid address > +or because of some hardware error. Refer > getPerfCountInfo documentation for > +more information. > + > + * "-EFBIG" : System information exceeds PAGE_SIZE. -- ~Randy
[PATCH v2 10/10] docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document affinity_domain_via_partition sysfs interface file
Add details of the new hv-gpci interface file called "affinity_domain_via_partition" in the ABI documentation. Signed-off-by: Kajol Jain --- .../sysfs-bus-event_source-devices-hv_gpci| 32 +++ 1 file changed, 32 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci index d8e65b93d1f7..b03b2bd4b081 100644 --- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_gpci @@ -208,3 +208,35 @@ Description: admin read only more information. * "-EFBIG" : System information exceeds PAGE_SIZE. + +What: /sys/devices/hv_gpci/interface/affinity_domain_via_partition +Date: July 2023 +Contact: Linux on PowerPC Developer List +Description: admin read only + This sysfs file exposes the system topology information by making HCALL + H_GET_PERF_COUNTER_INFO. The HCALL is made with counter request value + AFFINITY_DOMAIN_INFORMATION_BY_PARTITION(0xB1). + + * This sysfs file will be created only for power10 and above platforms. + + * User needs root privileges to read data from this sysfs file. + + * This sysfs file will be created, only when the HCALL returns "H_SUCESS", + "H_AUTHORITY" and "H_PARAMETER" as the return type. + + HCALL with return error type "H_AUTHORITY", can be resolved during + runtime by setting "Enable Performance Information Collection" option. + + * The end user reading this sysfs file must decode the content as per + underlying platform/firmware. + + Possible error codes while reading this sysfs file: + + * "-EPERM" : Partition is not permitted to retrieve performance information, + required to set "Enable Performance Information Collection" option. + + * "-EIO" : Can't retrieve system information because of invalid buffer length/invalid address + or because of some hardware error. Refer getPerfCountInfo documentation for + more information. + + * "-EFBIG" : System information exceeds PAGE_SIZE. -- 2.31.1