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sonic-buildimage/platform/pddf
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FuzailBrcm d3f2da8679
[pddf]: Adding support for fan_drawer class in PDDF common platform APIs (#10213) 
Why I did it
fan_drawer support was missing in PDDF common platform APIs. This resulted in 'thermalctld' not working and 'show platform fan' and 'show platfomr temperature' commands not working.
_thermal_list array inside PSU class was not initialized. Made changes to attach the PSU related thermal sensors in the PSU instance.
How I did it
Added a common class pddf_fan_drawer.py. This class uses the PDDF JSON to fetch the platform specific data. A platform which uses PDDF would follow the below hierarchy.

fan_drawer_base.py ---> pddf_fan_drawer.py ---> fan_drawer.py

How to verify it
Run the 'show platform fan' and 'show platform temperature' commands and check the o/p.

o/p on AS7326:

root@sonic:/home/admin# show platform fan
s  Drawer    LED         FAN    Speed    Direction    Presence    Status          Timestamp
--------  -----  ----------  -------  -----------  ----------  --------  -----------------
Fantray1  green  Fantray1_1      38%      EXHAUST     Present        OK  20220311 04:15:03
Fantray1  green  Fantray1_2      38%      EXHAUST     Present        OK  20220311 04:15:03
Fantray2  green  Fantray2_1      38%      EXHAUST     Present        OK  20220311 04:15:03
Fantray2  green  Fantray2_2      38%      EXHAUST     Present        OK  20220311 04:15:03
Fantray3  green  Fantray3_1      38%      EXHAUST     Present        OK  20220311 04:15:03
Fantray3  green  Fantray3_2      38%      EXHAUST     Present        OK  20220311 04:15:03
Fantray4  green  Fantray4_1      38%      EXHAUST     Present        OK  20220311 04:15:03
Fantray4  green  Fantray4_2      38%      EXHAUST     Present        OK  20220311 04:15:03
Fantray5  green  Fantray5_1      38%      EXHAUST     Present        OK  20220311 04:15:03
Fantray5  green  Fantray5_2      38%      EXHAUST     Present        OK  20220311 04:15:03
Fantray6  green  Fantray6_1      38%      EXHAUST     Present        OK  20220311 04:15:03
Fantray6  green  Fantray6_2      38%      EXHAUST     Present        OK  20220311 04:15:03
     N/A    off   PSU1_FAN1       0%                  Present    Not OK  20220311 04:15:05
     N/A  green   PSU2_FAN1      34%      EXHAUST     Present        OK  20220311 04:15:05
hroot@sonic:/home/admin# show platform temperature
    Sensor    Temperature    High TH    Low TH    Crit High TH    Crit Low TH    Warning          Timestamp
----------  -------------  ---------  --------  --------------  -------------  ---------  -----------------
PSU1_TEMP1            0          N/A       N/A             N/A            N/A      False  20220311 04:15:05
PSU2_TEMP1           37          N/A       N/A             N/A            N/A      False  20220311 04:15:05
     TEMP1           37         80.0       N/A             N/A            N/A      False  20220311 04:15:05
     TEMP2           27         80.0       N/A             N/A            N/A      False  20220311 04:15:05
     TEMP3           28.5       80.0       N/A             N/A            N/A      False  20220311 04:15:05
     TEMP4           30.5       80.0       N/A             N/A            N/A      False  20220311 04:15:05
root@sonic:/home/admin#
root@sonic:/home/admin#
root@sonic:/home/admin#
o/p on AS7726:

root@as7726-32x-2:~# show platform fan
  Drawer    LED         FAN    Speed    Direction    Presence    Status          Timestamp
--------  -----  ----------  -------  -----------  ----------  --------  -----------------
Fantray1  green  Fantray1_1      38%      EXHAUST     Present        OK  20220311 08:13:04
Fantray1  green  Fantray1_2      38%      EXHAUST     Present        OK  20220311 08:13:04
Fantray2  green  Fantray2_1      38%      EXHAUST     Present        OK  20220311 08:13:04
Fantray2  green  Fantray2_2      38%      EXHAUST     Present        OK  20220311 08:13:04
Fantray3  green  Fantray3_1      38%      EXHAUST     Present        OK  20220311 08:13:04
Fantray3  green  Fantray3_2      38%      EXHAUST     Present        OK  20220311 08:13:04
Fantray4  green  Fantray4_1      38%      EXHAUST     Present        OK  20220311 08:13:04
Fantray4  green  Fantray4_2      38%      EXHAUST     Present        OK  20220311 08:13:04
Fantray5  green  Fantray5_1      38%      EXHAUST     Present        OK  20220311 08:13:04
Fantray5  green  Fantray5_2      38%      EXHAUST     Present        OK  20220311 08:13:04
Fantray6  green  Fantray6_1      38%      EXHAUST     Present        OK  20220311 08:13:04
Fantray6  green  Fantray6_2      38%      EXHAUST     Present        OK  20220311 08:13:04
     N/A  green   PSU1_FAN1      23%      EXHAUST     Present        OK  20220311 08:13:04
     N/A  green   PSU2_FAN1      22%      EXHAUST     Present        OK  20220311 08:13:04
root@as7726-32x-2:~# show platform temp
    Sensor    Temperature    High TH    Low TH    Crit High TH    Crit Low TH    Warning          Timestamp
----------  -------------  ---------  --------  --------------  -------------  ---------  -----------------
PSU1_TEMP1           28          N/A       N/A             N/A            N/A      False  20220311 08:13:04
PSU2_TEMP1           25          N/A       N/A             N/A            N/A      False  20220311 08:13:04
     TEMP1           23.5       80.0       N/A             N/A            N/A      False  20220311 08:13:04
     TEMP2           27         80.0       N/A             N/A            N/A      False  20220311 08:13:04
     TEMP3           24         80.0       N/A             N/A            N/A      False  20220311 08:13:04
     TEMP4           27         80.0       N/A             N/A            N/A      False  20220311 08:13:04
     TEMP5           24         80.0       N/A             N/A            N/A      False  20220311 08:13:04
2022-03-18 11:14:10 -07:00
..
i2c [pddf]: Support for idle_state device parameter is required for muxes using i2c_mux_pca954x driver (#10060) 2022-03-03 15:58:34 -08:00
platform-api-pddf-base [pddf]: Adding support for fan_drawer class in PDDF common platform APIs (#10213) 2022-03-18 11:14:10 -07:00
platform-api-pddf-base.dep [pddf]: Update PDDF utils and common platform APIs for Debian Bullseye (#9585) 2022-01-02 22:27:01 -08:00
platform-api-pddf-base.mk Python 2 removal/cleanup 2021-11-10 15:27:22 -08:00
platform-modules-pddf.dep Platform Driver Developement Framework (PDDF) (#4756) 2020-11-12 10:22:38 -08:00
platform-modules-pddf.mk Platform Driver Developement Framework (PDDF) (#4756) 2020-11-12 10:22:38 -08:00
README.md Platform Driver Developement Framework (PDDF) (#4756) 2020-11-12 10:22:38 -08:00
rules.dep Platform Driver Developement Framework (PDDF) (#4756) 2020-11-12 10:22:38 -08:00
rules.mk Platform Driver Developement Framework (PDDF) (#4756) 2020-11-12 10:22:38 -08:00

README.md

Platform Driver Development Framework (PDDF) is part of SONiC Platform Development Kit (PDK) which optimizes the platform developement.

SONiC PDDF (Platform driver development framework) supports the following HW devices on a given platform:

  • Fan
  • PSU
  • System EEPROM
  • CPLD
  • CPLDMUX
  • GPIO
  • Optic Transceivers
  • System LED control via CPLD
  • System Status Registers in CPLD
  • Temp Sensors

This folder for the PDDF consists of the following:

  • PDDF python utility scripts
  • Generic PDDF HW device drivers in kernel space