使用FreeIPMI API從IPMI獲取所有DIMM信息

Question

以下是$ipmitool -sensor的輸出，它們顯示了所有DIMM信息。但是FreeIPMI只有插件的DIMM信息。我如何通過在C中使用FreeIPMI API來獲取所有內存DIMM信息？

$ sudo ipmitool sensor 
CPU Temp   | 59.000  | degrees C | ok | 0.000  | 0.000  | 0.000  | 99.000 | 104.000 | 104.000 
System Temp  | 35.000  | degrees C | ok | -10.000 | -5.000 | 0.000  | 80.000 | 85.000 | 90.000  
Peripheral Temp | 49.000  | degrees C | ok | -10.000 | -5.000 | 0.000  | 80.000 | 85.000 | 90.000  
DIMMA1 Temp  | na   |   | na | na  | na  | na  | na  | na  | na   
DIMMA2 Temp  | na   |   | na | na  | na  | na  | na  | na  | na   
DIMMB1 Temp  | 36.000  | degrees C | ok | -5.000 | 0.000  | 5.000  | 80.000 | 85.000 | 90.000  
DIMMB2 Temp  | na   |   | na | na  | na  | na  | na  | na  | na   
FAN1    | 3800.000 | RPM  | ok | 300.000 | 500.000 | 700.000 | 25300.000 | 25400.000 | 25500.000 
FAN2    | 4100.000 | RPM  | ok | 300.000 | 500.000 | 700.000 | 25300.000 | 25400.000 | 25500.000 
FAN3    | 4100.000 | RPM  | ok | 300.000 | 500.000 | 700.000 | 25300.000 | 25400.000 | 25500.000 
FANA    | 4400.000 | RPM  | ok | 300.000 | 500.000 | 700.000 | 25300.000 | 25400.000 | 25500.000 
12V    | 12.000  | Volts  | ok | 10.173 | 10.299 | 10.740 | 12.945 | 13.260 | 13.386  
5VCC    | 4.922  | Volts  | ok | 4.246  | 4.298  | 4.480  | 5.390  | 5.546  | 5.598  
3.3VCC   | 3.248  | Volts  | ok | 2.789  | 2.823  | 2.959  | 3.554  | 3.656  | 3.690  
VBAT    | 3.047  | Volts  | ok | 2.375  | 2.487  | 2.599  | 3.775  | 3.887  | 3.999  
Vcpu    | 1.809  | Volts  | ok | 1.242  | 1.260  | 1.395  | 1.899  | 2.088  | 2.106  
VDIMMAB   | 1.191  | Volts  | ok | 0.948  | 0.975  | 1.047  | 1.344  | 1.425  | 1.443  
VDIMMCD   | 1.209  | Volts  | ok | 0.948  | 0.975  | 1.047  | 1.344  | 1.425  | 1.443  
5VSB    | 4.974  | Volts  | ok | 4.246  | 4.298  | 4.480  | 5.390  | 5.546  | 5.598  
3.3VSB   | 3.197  | Volts  | ok | 2.789  | 2.823  | 2.959  | 3.554  | 3.656  | 3.690  
1.5V PCH   | 1.509  | Volts  | ok | 1.320  | 1.347  | 1.401  | 1.644  | 1.671  | 1.698  
1.2V BMC   | 1.218  | Volts  | ok | 1.020  | 1.047  | 1.092  | 1.344  | 1.371  | 1.398  
1.05V PCH  | 1.041  | Volts  | ok | 0.870  | 0.897  | 0.942  | 1.194  | 1.221  | 1.248  
Chassis Intru | 0x0  | discrete | 0x0000| na  | na  | na  | na  | na  | na  

關於內存信息，我知道DIMMA1，A2和B2不是插件，DIMMB1在溫度爲36.0度。

這裏是從FreeIPMI的ipmimonitoring-sensors輸出：

Record ID, Sensor Name, Sensor Number, Sensor Type, Sensor State, Sensor Reading, Sensor Units, Sensor Event/Reading Type Code, Sensor Event Bitmask, Sensor Event String 
4, Processor 1 CPU Temp, 1, Temperature, Nominal, 60.00, C, 1h, C0h, 'OK' 
71, System Board 1 System Temp, 11, Temperature, Nominal, 36.00, C, 1h, C0h, 'OK' 
138, System Board 2 Peripheral Temp, 14, Temperature, Nominal, 50.00, C, 1h, C0h, 'OK' 
339, Memory Device 68 DIMMB1 Temp, 180, Temperature, Nominal, 37.00, C, 1h, C0h, 'OK' 
473, Fan 1 FAN1, 65, Fan, Nominal, 3800.00, RPM, 1h, C0h, 'OK' 
540, Fan 2 FAN2, 66, Fan, Nominal, 4100.00, RPM, 1h, C0h, 'OK' 
607, Fan 3 FAN3, 67, Fan, Nominal, 4000.00, RPM, 1h, C0h, 'OK' 
674, Fan 5 FANA, 69, Fan, Nominal, 4300.00, RPM, 1h, C0h, 'OK' 
741, System Board 17 12V, 48, Voltage, Nominal, 12.00, V, 1h, C0h, 'OK' 
808, System Board 33 5VCC, 49, Voltage, Nominal, 4.92, V, 1h, C0h, 'OK' 
875, System Board 32 3.3VCC, 50, Voltage, Nominal, 3.25, V, 1h, C0h, 'OK' 
942, System Board 18 VBAT, 51, Voltage, Nominal, 3.05, V, 1h, C0h, 'OK' 
1009, Processor 2 Vcpu, 52, Voltage, Nominal, 1.81, V, 1h, C0h, 'OK' 
1076, Memory Device 1 VDIMMAB, 53, Voltage, Nominal, 1.19, V, 1h, C0h, 'OK' 
1143, Memory Device 2 VDIMMCD, 55, Voltage, Nominal, 1.21, V, 1h, C0h, 'OK' 
1210, System Board 15 5VSB, 56, Voltage, Nominal, 4.97, V, 1h, C0h, 'OK' 
1277, System Board 16 3.3VSB, 57, Voltage, Nominal, 3.20, V, 1h, C0h, 'OK' 
1344, System Board 19 1.5V PCH, 60, Voltage, Nominal, 1.51, V, 1h, C0h, 'OK' 
1411, System Board 20 1.2V BMC, 61, Voltage, Nominal, 1.22, V, 1h, C0h, 'OK' 
1478, System Board 21 1.05V PCH, 62, Voltage, Nominal, 1.04, V, 1h, C0h, 'OK' 
1545, System Chassis Chassis Intru, 170, Physical Security, Nominal, N/A, N/A, 6Fh, 0h, 'OK' 

但是，沒有信息的DIMMA1，A2和B2，因爲他們沒有插件。所以我跟蹤的IMPI監控 - sensor.c

if ((sensor_count = ipmi_monitoring_sensor_readings_by_record_id (ctx, 
                    hostname, 
                    ipmi_config, 
                    sensor_reading_flags, 
                    NULL, /* record_ids */ 
                    0, /* record_ids_length */ 
                    NULL, 
                    NULL)) < 0) 

和配置

static void 
_init_ipmi_config (struct ipmi_monitoring_ipmi_config *ipmi_config) 
{ 
    assert (ipmi_config); 

    ipmi_config->driver_type = driver_type; 
    ipmi_config->disable_auto_probe = disable_auto_probe; 
    ipmi_config->driver_address = driver_address; 
    ipmi_config->register_spacing = register_spacing; 
    ipmi_config->driver_device = driver_device; 

    ipmi_config->protocol_version = protocol_version; 
    ipmi_config->username = username; 
    ipmi_config->password = password; 
    ipmi_config->k_g = k_g; 
    ipmi_config->k_g_len = k_g_len; 
    ipmi_config->privilege_level = privilege_level; 
    ipmi_config->authentication_type = authentication_type; 
    ipmi_config->cipher_suite_id = cipher_suite_id; 
    ipmi_config->session_timeout_len = session_timeout; 
    ipmi_config->retransmission_timeout_len = retransmission_timeout; 

    ipmi_config->workaround_flags = workaround_flags; 
} 

我可以假設，主板擁有4條DIMM插槽的代碼，如果他們沒有在FreeIPMI傳感器發現輸出，我可以猜測他們不是插件。但是，如何通過IPMI命令知道主板上的所有DIMM插槽？

Answer 1

FreeIPMI維護者在這裏。一般來說，如果FreeIPMI中的大多數工具「不可用」，它們將不會輸出有關傳感器的信息。 （在內部，映射到我不會詳述的各種事情）。看起來ipmitool默認輸出一些傳感器信息，不管可用性如何。

每個關於使用IPMI命令的問題。使用FreeIPMI的ipmi-sensors，您可以使用-v（或可能是-vv）查看剩餘的DIMM。

根據關於A​​PI的標題問題，在libipmimonitoring API中，密鑰標記是IPMI_MONITORING_SENSOR_READING_FLAGS_IGNORE_NON_INTERPRETABLE_SENSORS。在示例代碼中查找，您可能會看到該做什麼。