On Mon, 2022-05-23 at 11:46 -0600, Jonathan Corbet wrote: > 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. You mean I should print the result with the command? Something like this: #intel-speed-select --oob Intel(R) Speed Select Technology OOB mode is enabled and will run as daemon > Literal > blocks need to be indented. I will submit v2. Thanks, Srinivas > > Thanks, > > jon
