Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx> writes: > Update documentation for using the tool to support performance level > change via OOB (Out of Band) interface. > > Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx> > --- > .../admin-guide/pm/intel-speed-select.rst | 19 +++++++++++++++++++ > 1 file changed, 19 insertions(+) > > diff --git a/Documentation/admin-guide/pm/intel-speed-select.rst b/Documentation/admin-guide/pm/intel-speed-select.rst > index 0a1fbdb54bfe..4146a2da35ea 100644 > --- a/Documentation/admin-guide/pm/intel-speed-select.rst > +++ b/Documentation/admin-guide/pm/intel-speed-select.rst > @@ -262,6 +262,25 @@ Which shows that the base frequency now increased from 2600 MHz at performance > level 0 to 2800 MHz at performance level 4. As a result, any workload, which can > use fewer CPUs, can see a boost of 200 MHz compared to performance level 0. > > +Changing performance level via BMC Interface > +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > + > +It is possible to change SST-PP level using out of band (OOB) agent (Via some > +remote management console, through BMC "Baseboard Management Controller" > +interface). This mode is supported from the Sapphire Rapids processor > +generation. The kernel and tool change to support this mode is added to Linux > +kernel version 5.18. To enable this feature, kernel config > +"CONFIG_INTEL_HFI_THERMAL" is required. The minimum version of the tool > +is "v1.12" to support this feature, which is part of Linux kernel version 5.18. > + > +To support such configuration, this tool can be used as a daemon. Add > +a command line option --oob:: > + > +# intel-speed-select --oob > + This suggests you haven't actually built the documentation with your change and verified that you got the result you were after. Literal blocks need to be indented. Thanks, jon
