diff options
Diffstat (limited to 'src/import/chips/ocmb/explorer/procedures/hwp/memory/lib/power_thermal/exp_throttle.C')
| -rw-r--r-- | src/import/chips/ocmb/explorer/procedures/hwp/memory/lib/power_thermal/exp_throttle.C | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/src/import/chips/ocmb/explorer/procedures/hwp/memory/lib/power_thermal/exp_throttle.C b/src/import/chips/ocmb/explorer/procedures/hwp/memory/lib/power_thermal/exp_throttle.C index b3114480e..0e95aebb7 100644 --- a/src/import/chips/ocmb/explorer/procedures/hwp/memory/lib/power_thermal/exp_throttle.C +++ b/src/import/chips/ocmb/explorer/procedures/hwp/memory/lib/power_thermal/exp_throttle.C @@ -22,3 +22,137 @@ /* permissions and limitations under the License. */ /* */ /* IBM_PROLOG_END_TAG */ + +/// +/// @file exp_throttle.C +/// @brief Determine throttle settings for memory +/// +// *HWP HWP Owner: Andre A. Marin <aamarin@us.ibm.com> +// *HWP HWP Backup: Louis Stermole <stermole@us.ibm.com> +// *HWP Team: Memory +// *HWP Level: 3 +// *HWP Consumed by: FSP:HB + +#include <lib/shared/exp_defaults.H> +// fapi2 +#include <fapi2.H> + +#include <lib/shared/exp_consts.H> +#include <lib/power_thermal/exp_throttle.H> +#include <mss_explorer_attribute_getters.H> +#include <mss_explorer_attribute_setters.H> +#include <generic/memory/lib/utils/count_dimm.H> + +namespace mss +{ +namespace power_thermal +{ +/// +/// @brief Calcuate the throttle values based on throttle type +/// @param[in] i_target +/// @param[in] i_throttle_type thermal boolean to determine whether to calculate throttles based on the power regulator or thermal limits +/// @return fapi2::ReturnCode - FAPI2_RC_SUCCESS iff get is OK +/// @note Called in p9_mss_bulk_pwr_throttles +/// @note determines the throttle levels based off of the port's power curve, +/// sets the slot throttles to the same +/// @note Enums are POWER for power egulator throttles and THERMAL for thermal throttles +/// @note equalizes the throttles to the lowest of runtime and the lowest slot-throttle value +/// +fapi2::ReturnCode pwr_throttles( const fapi2::Target<fapi2::TARGET_TYPE_OCMB_CHIP>& i_target, + const mss::throttle_type i_throttle_type) +{ + FAPI_INF("Start exp_bulk_pwr_throttle for %s type throttling for %s", + (( i_throttle_type == mss::throttle_type::THERMAL) ? "THERMAL" : "POWER"), mss::c_str(i_target)); + + if (mss::count_dimm (i_target) == 0) + { + return fapi2::FAPI2_RC_SUCCESS; + } + + uint16_t l_slot = 0; + uint16_t l_port = 0; + uint32_t l_power = 0; + + for (const auto& l_port_target : mss::find_targets<fapi2::TARGET_TYPE_MEM_PORT>(i_target)) + { + fapi2::ReturnCode l_rc = fapi2::FAPI2_RC_SUCCESS; + + //Don't run if there are no dimms on the port + if (mss::count_dimm(l_port_target) == 0) + { + continue; + } + + mss::power_thermal::throttle<> l_pwr_struct(l_port_target, l_rc); + FAPI_TRY(l_rc, "Error constructing mss:power_thermal::throttle object for target %s", + mss::c_str(l_port_target)); + + //Let's do the actual work now + if ( i_throttle_type == mss::throttle_type::THERMAL) + { + FAPI_TRY (l_pwr_struct.thermal_throttles()); + } + else + { + FAPI_TRY (l_pwr_struct.power_regulator_throttles()); + } + + l_slot = l_pwr_struct.iv_n_slot; + l_port = l_pwr_struct.iv_n_port; + l_power = l_pwr_struct.iv_calc_port_maxpower; + + FAPI_INF("For target %s Calculated power is %d, throttle per slot is %d, throttle per port is %d", + mss::c_str(l_port_target), l_power, l_slot, l_port); + + FAPI_TRY(mss::attr::set_port_maxpower( l_port_target, l_power)); + FAPI_TRY(mss::attr::set_mem_throttled_n_commands_per_slot( l_port_target, l_slot)); + FAPI_TRY(mss::attr::set_mem_throttled_n_commands_per_port( l_port_target, l_port)); + } + + FAPI_INF("End bulk_pwr_throttles for %s", mss::c_str(i_target)); + return fapi2::current_err; + +fapi_try_exit: + FAPI_ERR("Error calculating bulk_pwr_throttles using %s throttling", + ((i_throttle_type == mss::throttle_type::POWER) ? "power" : "thermal")); + return fapi2::current_err; +} + +/// +/// @brief Equalize the throttles among OCMB chips +/// @param[in] i_targets vector of OCMB chips +/// @param[in] i_throttle_type thermal boolean to determine whether to calculate throttles based on the power regulator or thermal limits +/// @return fapi2::ReturnCode - FAPI2_RC_SUCCESS iff get is OK +/// @note equalizes the throttles to the lowest of runtime and the lowest slot-throttle value +/// +fapi2::ReturnCode equalize_throttles( const std::vector< fapi2::Target<fapi2::TARGET_TYPE_OCMB_CHIP> >& i_targets, + const mss::throttle_type i_throttle_type) +{ + FAPI_INF("Start equalize_throttles for %s type throttling", + (( i_throttle_type == mss::throttle_type::THERMAL) ? "THERMAL" : "POWER")); + + std::vector< fapi2::Target<fapi2::TARGET_TYPE_MEM_PORT> > l_exceeded_power; + + // Set all of the throttles to the lowest value per port for performance reasons + FAPI_TRY(mss::power_thermal::equalize_throttles(i_targets, i_throttle_type, l_exceeded_power)); + + // Report any port that exceeded the max power limit, and return a failing RC if we have any + for (const auto& l_port : l_exceeded_power) + { + FAPI_ERR(" MEM_PORT %s estimated power exceeded the maximum allowed", mss::c_str(l_port) ); + fapi2::current_err = fapi2::FAPI2_RC_FALSE; + } + + FAPI_INF("End equalize_throttles"); + return fapi2::current_err; + +fapi_try_exit: + FAPI_ERR("Error calculating equalize_throttles using %s throttling", + ((i_throttle_type == mss::throttle_type::POWER) ? "power" : "thermal")); + return fapi2::current_err; +} + + + +}//namespace power_thermal +}//namespace mss |
