1 What: /sys/bus/platform/devices/dfl-fme.0/ports_num 2 Date: June 2018 3 KernelVersion: 4.19 4 Contact: Wu Hao <hao.wu@intel.com> 5 Description: Read-only. One DFL FPGA device may have more than 1 6 port/Accelerator Function Unit (AFU). It returns the 7 number of ports on the FPGA device when read it. 8 9 What: /sys/bus/platform/devices/dfl-fme.0/bitstream_id 10 Date: June 2018 11 KernelVersion: 4.19 12 Contact: Wu Hao <hao.wu@intel.com> 13 Description: Read-only. It returns Bitstream (static FPGA region) 14 identifier number, which includes the detailed version 15 and other information of this static FPGA region. 16 17 What: /sys/bus/platform/devices/dfl-fme.0/bitstream_metadata 18 Date: June 2018 19 KernelVersion: 4.19 20 Contact: Wu Hao <hao.wu@intel.com> 21 Description: Read-only. It returns Bitstream (static FPGA region) meta 22 data, which includes the synthesis date, seed and other 23 information of this static FPGA region. 24 25 What: /sys/bus/platform/devices/dfl-fme.0/cache_size 26 Date: August 2019 27 KernelVersion: 5.4 28 Contact: Wu Hao <hao.wu@intel.com> 29 Description: Read-only. It returns cache size of this FPGA device. 30 31 What: /sys/bus/platform/devices/dfl-fme.0/fabric_version 32 Date: August 2019 33 KernelVersion: 5.4 34 Contact: Wu Hao <hao.wu@intel.com> 35 Description: Read-only. It returns fabric version of this FPGA device. 36 Userspace applications need this information to select 37 best data channels per different fabric design. 38 39 What: /sys/bus/platform/devices/dfl-fme.0/socket_id 40 Date: August 2019 41 KernelVersion: 5.4 42 Contact: Wu Hao <hao.wu@intel.com> 43 Description: Read-only. It returns socket_id to indicate which socket 44 this FPGA belongs to, only valid for integrated solution. 45 User only needs this information, in case standard numa node 46 can't provide correct information. 47 48 What: /sys/bus/platform/devices/dfl-fme.0/errors/pcie0_errors 49 Date: August 2019 50 KernelVersion: 5.4 51 Contact: Wu Hao <hao.wu@intel.com> 52 Description: Read-Write. Read this file for errors detected on pcie0 link. 53 Write this file to clear errors logged in pcie0_errors. Write 54 fails with -EINVAL if input parsing fails or input error code 55 doesn't match. 56 57 What: /sys/bus/platform/devices/dfl-fme.0/errors/pcie1_errors 58 Date: August 2019 59 KernelVersion: 5.4 60 Contact: Wu Hao <hao.wu@intel.com> 61 Description: Read-Write. Read this file for errors detected on pcie1 link. 62 Write this file to clear errors logged in pcie1_errors. Write 63 fails with -EINVAL if input parsing fails or input error code 64 doesn't match. 65 66 What: /sys/bus/platform/devices/dfl-fme.0/errors/nonfatal_errors 67 Date: August 2019 68 KernelVersion: 5.4 69 Contact: Wu Hao <hao.wu@intel.com> 70 Description: Read-only. It returns non-fatal errors detected. 71 72 What: /sys/bus/platform/devices/dfl-fme.0/errors/catfatal_errors 73 Date: August 2019 74 KernelVersion: 5.4 75 Contact: Wu Hao <hao.wu@intel.com> 76 Description: Read-only. It returns catastrophic and fatal errors detected. 77 78 What: /sys/bus/platform/devices/dfl-fme.0/errors/inject_errors 79 Date: August 2019 80 KernelVersion: 5.4 81 Contact: Wu Hao <hao.wu@intel.com> 82 Description: Read-Write. Read this file to check errors injected. Write this 83 file to inject errors for testing purpose. Write fails with 84 -EINVAL if input parsing fails or input inject error code isn't 85 supported. 86 87 What: /sys/bus/platform/devices/dfl-fme.0/errors/fme_errors 88 Date: August 2019 89 KernelVersion: 5.4 90 Contact: Wu Hao <hao.wu@intel.com> 91 Description: Read-Write. Read this file to get errors detected on FME. 92 Write this file to clear errors logged in fme_errors. Write 93 fails with -EINVAL if input parsing fails or input error code 94 doesn't match. 95 96 What: /sys/bus/platform/devices/dfl-fme.0/errors/first_error 97 Date: August 2019 98 KernelVersion: 5.4 99 Contact: Wu Hao <hao.wu@intel.com> 100 Description: Read-only. Read this file to get the first error detected by 101 hardware. 102 103 What: /sys/bus/platform/devices/dfl-fme.0/errors/next_error 104 Date: August 2019 105 KernelVersion: 5.4 106 Contact: Wu Hao <hao.wu@intel.com> 107 Description: Read-only. Read this file to get the second error detected by 108 hardware. 109 110 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/name 111 Date: October 2019 112 KernelVersion: 5.5 113 Contact: Wu Hao <hao.wu@intel.com> 114 Description: Read-Only. Read this file to get the name of hwmon device, it 115 supports values: 116 117 ================= ========================= 118 'dfl_fme_thermal' thermal hwmon device name 119 'dfl_fme_power' power hwmon device name 120 ================= ========================= 121 122 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/temp1_input 123 Date: October 2019 124 KernelVersion: 5.5 125 Contact: Wu Hao <hao.wu@intel.com> 126 Description: Read-Only. It returns FPGA device temperature in millidegrees 127 Celsius. 128 129 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/temp1_max 130 Date: October 2019 131 KernelVersion: 5.5 132 Contact: Wu Hao <hao.wu@intel.com> 133 Description: Read-Only. It returns hardware threshold1 temperature in 134 millidegrees Celsius. If temperature rises at or above this 135 threshold, hardware starts 50% or 90% throttling (see 136 'temp1_max_policy'). 137 138 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/temp1_crit 139 Date: October 2019 140 KernelVersion: 5.5 141 Contact: Wu Hao <hao.wu@intel.com> 142 Description: Read-Only. It returns hardware threshold2 temperature in 143 millidegrees Celsius. If temperature rises at or above this 144 threshold, hardware starts 100% throttling. 145 146 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/temp1_emergency 147 Date: October 2019 148 KernelVersion: 5.5 149 Contact: Wu Hao <hao.wu@intel.com> 150 Description: Read-Only. It returns hardware trip threshold temperature in 151 millidegrees Celsius. If temperature rises at or above this 152 threshold, a fatal event will be triggered to board management 153 controller (BMC) to shutdown FPGA. 154 155 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/temp1_max_alarm 156 Date: October 2019 157 KernelVersion: 5.5 158 Contact: Wu Hao <hao.wu@intel.com> 159 Description: Read-only. It returns 1 if temperature is currently at or above 160 hardware threshold1 (see 'temp1_max'), otherwise 0. 161 162 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/temp1_crit_alarm 163 Date: October 2019 164 KernelVersion: 5.5 165 Contact: Wu Hao <hao.wu@intel.com> 166 Description: Read-only. It returns 1 if temperature is currently at or above 167 hardware threshold2 (see 'temp1_crit'), otherwise 0. 168 169 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/temp1_max_policy 170 Date: October 2019 171 KernelVersion: 5.5 172 Contact: Wu Hao <hao.wu@intel.com> 173 Description: Read-Only. Read this file to get the policy of hardware threshold1 174 (see 'temp1_max'). It only supports two values (policies): 175 176 == ========================== 177 0 AP2 state (90% throttling) 178 1 AP1 state (50% throttling) 179 == ========================== 180 181 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_input 182 Date: October 2019 183 KernelVersion: 5.5 184 Contact: Wu Hao <hao.wu@intel.com> 185 Description: Read-Only. It returns current FPGA power consumption in uW. 186 187 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_max 188 Date: October 2019 189 KernelVersion: 5.5 190 Contact: Wu Hao <hao.wu@intel.com> 191 Description: Read-Write. Read this file to get current hardware power 192 threshold1 in uW. If power consumption rises at or above 193 this threshold, hardware starts 50% throttling. 194 Write this file to set current hardware power threshold1 in uW. 195 As hardware only accepts values in Watts, so input value will 196 be round down per Watts (< 1 watts part will be discarded) and 197 clamped within the range from 0 to 127 Watts. Write fails with 198 -EINVAL if input parsing fails. 199 200 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_crit 201 Date: October 2019 202 KernelVersion: 5.5 203 Contact: Wu Hao <hao.wu@intel.com> 204 Description: Read-Write. Read this file to get current hardware power 205 threshold2 in uW. If power consumption rises at or above 206 this threshold, hardware starts 90% throttling. 207 Write this file to set current hardware power threshold2 in uW. 208 As hardware only accepts values in Watts, so input value will 209 be round down per Watts (< 1 watts part will be discarded) and 210 clamped within the range from 0 to 127 Watts. Write fails with 211 -EINVAL if input parsing fails. 212 213 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_max_alarm 214 Date: October 2019 215 KernelVersion: 5.5 216 Contact: Wu Hao <hao.wu@intel.com> 217 Description: Read-only. It returns 1 if power consumption is currently at or 218 above hardware threshold1 (see 'power1_max'), otherwise 0. 219 220 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_crit_alarm 221 Date: October 2019 222 KernelVersion: 5.5 223 Contact: Wu Hao <hao.wu@intel.com> 224 Description: Read-only. It returns 1 if power consumption is currently at or 225 above hardware threshold2 (see 'power1_crit'), otherwise 0. 226 227 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_xeon_limit 228 Date: October 2019 229 KernelVersion: 5.5 230 Contact: Wu Hao <hao.wu@intel.com> 231 Description: Read-Only. It returns power limit for XEON in uW. 232 233 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_fpga_limit 234 Date: October 2019 235 KernelVersion: 5.5 236 Contact: Wu Hao <hao.wu@intel.com> 237 Description: Read-Only. It returns power limit for FPGA in uW. 238 239 What: /sys/bus/platform/devices/dfl-fme.0/hwmon/hwmonX/power1_ltr 240 Date: October 2019 241 KernelVersion: 5.5 242 Contact: Wu Hao <hao.wu@intel.com> 243 Description: Read-only. Read this file to get current Latency Tolerance 244 Reporting (ltr) value. It returns 1 if all Accelerated 245 Function Units (AFUs) can tolerate latency >= 40us for memory 246 access or 0 if any AFU is latency sensitive (< 40us).
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