1#!/usr/bin/env python3 2 3# This tool runs on the host CPU and gathers all SST related configuration from 4# the BMC (Redfish) and from the linux driver, and compares them to catch any 5# errors or disagreement. Only required arguments are the details to start a 6# Redfish session. 7# 8# This was tested running on a live Arch Linux ISO environment. Any Linux 9# installation should work, but best to get the latest tools and kernel driver. 10# 11# Required dependencies: 12# * DMTF's redfish python library. This is available in pip. 13# * intel-speed-select tool from the kernel source tree 14# (tools/power/x86/intel-speed-select), and available in the PATH. 15 16import redfish 17 18import argparse 19import json 20import re 21import subprocess 22import sys 23 24linux_cpu_map = dict() 25success = True 26 27def get_linux_output(): 28 cmd = "/usr/bin/env intel-speed-select --debug --format json perf-profile info".split() 29 process = subprocess.run(cmd, capture_output=True, text=True) 30 process.check_returncode() 31 result = json.loads(process.stderr) 32 33 global linux_cpu_map 34 linux_cpu_map = dict() 35 for line in process.stdout.split('\n'): 36 match = re.search("logical_cpu:(\d+).*punit_core:(\d+)", line) 37 if not match: 38 continue 39 logical_thread = int(match.group(1)) 40 physical_core = int(match.group(2)) 41 linux_cpu_map[logical_thread] = physical_core 42 43 cmd = "/usr/bin/env intel-speed-select --format json perf-profile get-config-current-level".split() 44 process = subprocess.run(cmd, capture_output=True, text=True) 45 current_level = json.loads(process.stderr) 46 47 for proc, data in current_level.items(): 48 result[proc].update(data) 49 50 return result 51 52 53def compare(redfish_val, linux_val, description): 54 err = "" 55 if redfish_val != linux_val: 56 err = "!! MISMATCH !!" 57 global success 58 success = False 59 print(f"{description}: {err}") 60 print(f" Redfish: {redfish_val}") 61 print(f" Linux: {linux_val}") 62 63 64def get_linux_package(linux_data, redfish_id): 65 match = re.match("cpu(\d+)", redfish_id) 66 if not match: 67 raise RuntimeError(f"Redfish CPU name is unexpected: {redfish_id}") 68 num = match.group(1) 69 matching_keys = [] 70 for key in linux_data.keys(): 71 if re.match(f"^package-{num}:.*", key): 72 matching_keys.append(key) 73 if len(matching_keys) != 1: 74 raise RuntimeError(f"Unexpected number of matching linux objects for {redfish_id}") 75 return linux_data[matching_keys[0]] 76 77 78def compare_config(redfish_config, linux_config): 79 print(f"--Checking {redfish_config['Id']}--") 80 compare(redfish_config["BaseSpeedMHz"], int(linux_config["base-frequency(MHz)"]), "Base Speed") 81 82 actual_hp_p1 = actual_lp_p1 = 0 83 actual_hp_cores = set() 84 for bf in redfish_config["BaseSpeedPrioritySettings"]: 85 if not actual_hp_p1 or bf["BaseSpeedMHz"] > actual_hp_p1: 86 actual_hp_p1 = bf["BaseSpeedMHz"] 87 actual_hp_cores = set(bf["CoreIDs"]) 88 if not actual_lp_p1 or bf["BaseSpeedMHz"] < actual_lp_p1: 89 actual_lp_p1 = bf["BaseSpeedMHz"] 90 91 exp_hp_p1 = exp_lp_p1 = 0 92 exp_hp_cores = set() 93 if "speed-select-base-freq-properties" in linux_config: 94 exp_bf_props = linux_config["speed-select-base-freq-properties"] 95 exp_hp_p1 = int(exp_bf_props["high-priority-base-frequency(MHz)"]) 96 exp_hp_cores = set(map(lambda x: linux_cpu_map[x], 97 map(int, exp_bf_props["high-priority-cpu-list"].split(",")))) 98 exp_lp_p1 = int(exp_bf_props["low-priority-base-frequency(MHz)"]) 99 100 compare(actual_hp_p1, exp_hp_p1, "SST-BF High Priority P1 Freq") 101 compare(actual_hp_cores, exp_hp_cores, "SST-BF High Priority Core List") 102 compare(actual_lp_p1, exp_lp_p1, "SST-BF Low Priority P1 Freq") 103 104 105 compare(redfish_config["MaxJunctionTemperatureCelsius"], 106 int(linux_config["tjunction-max(C)"]), 107 "Junction Temperature") 108 compare(redfish_config["MaxSpeedMHz"], 109 int(linux_config["turbo-ratio-limits-sse"]["bucket-0"]["max-turbo-frequency(MHz)"]), 110 "SSE Max Turbo Speed") 111 compare(redfish_config["TDPWatts"], 112 int(linux_config["thermal-design-power(W)"]), 113 "TDP") 114 compare(redfish_config["TotalAvailableCoreCount"], 115 int(linux_config["enable-cpu-count"])//2, 116 "Enabled Core Count") 117 118 actual_turbo = [(x["ActiveCoreCount"], x["MaxSpeedMHz"]) for x in redfish_config["TurboProfile"]] 119 linux_turbo = linux_config["turbo-ratio-limits-sse"] 120 exp_turbo = [] 121 for bucket_key in sorted(linux_turbo.keys()): 122 bucket = linux_turbo[bucket_key] 123 exp_turbo.append((int(bucket["core-count"]), int(bucket["max-turbo-frequency(MHz)"]))) 124 compare(actual_turbo, exp_turbo, "SSE Turbo Profile") 125 126 127def get_level_from_config_id(config_id): 128 match = re.match("config(\d+)", config_id) 129 if not match: 130 raise RuntimeError(f"Invalid config name {config_id}") 131 return match.group(1) 132 133 134def main(): 135 parser = argparse.ArgumentParser(description="Compare Redfish SST properties against Linux tools") 136 parser.add_argument("hostname") 137 parser.add_argument("--username", "-u", default="root") 138 parser.add_argument("--password", "-p", default="0penBmc") 139 args = parser.parse_args() 140 141 linux_data = get_linux_output() 142 143 bmc = redfish.redfish_client(base_url=f"https://{args.hostname}", 144 username=args.username, password=args.password) 145 bmc.login(auth="session") 146 147 # Load the ProcessorCollection 148 resp = json.loads(bmc.get("/redfish/v1/Systems/system/Processors").text) 149 for proc_member in resp["Members"]: 150 proc_resp = json.loads(bmc.get(proc_member["@odata.id"]).text) 151 proc_id = proc_resp["Id"] 152 print() 153 print(f"----Checking Processor {proc_id}----") 154 155 if proc_resp["Status"]["State"] == "Absent": 156 print("Not populated") 157 continue 158 159 # Get subset of intel-speed-select data which applies to this CPU 160 pkg_data = get_linux_package(linux_data, proc_id) 161 162 # Check currently applied config 163 applied_config = proc_resp["AppliedOperatingConfig"]["@odata.id"].split('/')[-1] 164 current_level = get_level_from_config_id(applied_config) 165 compare(current_level, pkg_data["get-config-current_level"], "Applied Config") 166 167 exp_cur_level_data = pkg_data[f"perf-profile-level-{current_level}"] 168 169 # Check whether SST-BF is enabled 170 bf_enabled = proc_resp["BaseSpeedPriorityState"].lower() 171 exp_bf_enabled = exp_cur_level_data["speed-select-base-freq"] 172 if exp_bf_enabled == "unsupported": 173 exp_bf_enabled = "disabled" 174 compare(bf_enabled, exp_bf_enabled, "SST-BF Enabled?") 175 176 # Check high speed core list 177 hscores = set(proc_resp["HighSpeedCoreIDs"]) 178 exp_hscores = set() 179 if "speed-select-base-freq-properties" in exp_cur_level_data: 180 exp_hscores = exp_cur_level_data["speed-select-base-freq-properties"]["high-priority-cpu-list"] 181 exp_hscores = set([linux_cpu_map[int(x)] for x in exp_hscores.split(",")]) 182 compare(hscores, exp_hscores, "High Speed Core List") 183 184 # Load the OperatingConfigCollection 185 resp = json.loads(bmc.get(proc_resp["OperatingConfigs"]["@odata.id"]).text) 186 187 # Check number of available configs 188 profile_keys = list(filter(lambda x: x.startswith("perf-profile-level"), pkg_data.keys())) 189 compare(resp["Members@odata.count"], int(len(profile_keys)), "Number of profiles") 190 191 for config_member in resp["Members"]: 192 # Load each OperatingConfig and compare all its contents 193 config_resp = json.loads(bmc.get(config_member["@odata.id"]).text) 194 level = get_level_from_config_id(config_resp["Id"]) 195 exp_level_data = pkg_data[f"perf-profile-level-{level}"] 196 compare_config(config_resp, exp_level_data) 197 198 print() 199 if success: 200 print("Everything matched! :)") 201 return 0 202 else: 203 print("There were mismatches, please check output :(") 204 return 1 205 206if __name__ == "__main__": 207 sys.exit(main()) 208