Fan speed controller validation

Fan speed controller validation

[Kumar Thangavel]

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Hi All,

Our product have Inlet temperature sensor and  two Fan with TACHO sensor feedback connected through Fan speed controller to BMC SoC.
We can able to read temperature sensor and control the Fan (PWM) through D-Bus interface.
All product specific configuration declared as JSON configuration file in Entity-Manager .
What is the procedure to  test  Fan Speed Controller(FSC)  based on STEP and PID based algorithm.

Please find the attached FanSensor dbus logs for your reference.

Thanks,
Kumar.








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root@yosemitev2:~# busctl tree xyz.openbmc_project.FanSensor --no-pager
`-/xyz
  `-/xyz/openbmc_project
    |-/xyz/openbmc_project/control
    | `-/xyz/openbmc_project/control/fanpwm
    |   |-/xyz/openbmc_project/control/fanpwm/Pwm_1
    |   `-/xyz/openbmc_project/control/fanpwm/Pwm_2
    `-/xyz/openbmc_project/sensors
      |-/xyz/openbmc_project/sensors/fan_pwm
      | |-/xyz/openbmc_project/sensors/fan_pwm/Pwm_1
      | `-/xyz/openbmc_project/sensors/fan_pwm/Pwm_2
      `-/xyz/openbmc_project/sensors/fan_tach
        |-/xyz/openbmc_project/sensors/fan_tach/SP_FAN0_TACH
        `-/xyz/openbmc_project/sensors/fan_tach/SP_FAN1_TACH

Re: Fan speed controller validation

[Vijay Khemka]

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Kumar,
If you are using entity manager, then you should have entry for fan speed controller table in entity manager json file. Then you need to run swampd. Once swampd is running then you can change temperature values via dbus interface and see if fan speeds are changing.

Regards
-Vijay

From: openbmc <openbmc-bounces+vijaykhemka=fb.com@lists.ozlabs.org> on behalf of Kumar Thangavel <thangavel.k@hcl.com>
Date: Sunday, November 17, 2019 at 7:44 PM
To: "openbmc@lists.ozlabs.org" <openbmc@lists.ozlabs.org>
Subject: Fan speed controller validation

Hi All,

Our product have Inlet temperature sensor and  two Fan with TACHO sensor feedback connected through Fan speed controller to BMC SoC.
We can able to read temperature sensor and control the Fan (PWM) through D-Bus interface.
All product specific configuration declared as JSON configuration file in Entity-Manager .
What is the procedure to  test  Fan Speed Controller(FSC)  based on STEP and PID based algorithm.

Please find the attached FanSensor dbus logs for your reference.

Thanks,
Kumar.








::DISCLAIMER::
________________________________
The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects.
________________________________

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RE: Fan speed controller validation

[Kumar Thangavel]

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Hi Vijay,

Thanks for your response.

We are using entity-manager for fan speed controller. So we have entry for fan speed controller in json file.

As you suggested, we could able to see some pwm and fan speed values are changing if we update the temperature values while swampd is running in TP.

In YV2, the pwm values are not updating properly if temperature updates.

Please find the attached documents  for temperatures and pwm values of TP and YV2.

As of now, we are using same TP speed controller table entries for YV2.

Could you please let us know the procedure for fan speed validation.

Thanks,
Kumar.

From: Vijay Khemka <vijaykhemka@fb.com>
Sent: Friday, November 22, 2019 12:14 AM
To: Kumar Thangavel <thangavel.k@hcl.com>; openbmc@lists.ozlabs.org
Subject: Re: Fan speed controller validation

Kumar,
If you are using entity manager, then you should have entry for fan speed controller table in entity manager json file. Then you need to run swampd. Once swampd is running then you can change temperature values via dbus interface and see if fan speeds are changing.

Regards
-Vijay

From: openbmc <openbmc-bounces+vijaykhemka=fb.com@lists.ozlabs.org<mailto:openbmc-bounces+vijaykhemka=fb.com@lists.ozlabs.org>> on behalf of Kumar Thangavel <thangavel.k@hcl.com<mailto:thangavel.k@hcl.com>>
Date: Sunday, November 17, 2019 at 7:44 PM
To: "openbmc@lists.ozlabs.org<mailto:openbmc@lists.ozlabs.org>" <openbmc@lists.ozlabs.org<mailto:openbmc@lists.ozlabs.org>>
Subject: Fan speed controller validation

Hi All,

Our product have Inlet temperature sensor and  two Fan with TACHO sensor feedback connected through Fan speed controller to BMC SoC.
We can able to read temperature sensor and control the Fan (PWM) through D-Bus interface.
All product specific configuration declared as JSON configuration file in Entity-Manager .
What is the procedure to  test  Fan Speed Controller(FSC)  based on STEP and PID based algorithm.

Please find the attached FanSensor dbus logs for your reference.

Thanks,
Kumar.








::DISCLAIMER::
________________________________
The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects.
________________________________

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Re: Fan speed controller validation

[Vijay Khemka]

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Hi Kumar,
It is same for all platforms. Do you see swampd running in your platform. If it is running then you can change your temperature value beyong any of limit provided in fan table and fan speed should change to the mention values in table.

Regards
-Vijay

From: Kumar Thangavel <thangavel.k@hcl.com>
Date: Thursday, November 28, 2019 at 4:37 AM
To: Vijay Khemka <vijaykhemka@fb.com>, "openbmc@lists.ozlabs.org" <openbmc@lists.ozlabs.org>
Subject: RE: Fan speed controller validation

Hi Vijay,

Thanks for your response.

We are using entity-manager for fan speed controller. So we have entry for fan speed controller in json file.

As you suggested, we could able to see some pwm and fan speed values are changing if we update the temperature values while swampd is running in TP.

In YV2, the pwm values are not updating properly if temperature updates.

Please find the attached documents  for temperatures and pwm values of TP and YV2.

As of now, we are using same TP speed controller table entries for YV2.

Could you please let us know the procedure for fan speed validation.

Thanks,
Kumar.

From: Vijay Khemka <vijaykhemka@fb.com>
Sent: Friday, November 22, 2019 12:14 AM
To: Kumar Thangavel <thangavel.k@hcl.com>; openbmc@lists.ozlabs.org
Subject: Re: Fan speed controller validation

Kumar,
If you are using entity manager, then you should have entry for fan speed controller table in entity manager json file. Then you need to run swampd. Once swampd is running then you can change temperature values via dbus interface and see if fan speeds are changing.

Regards
-Vijay

From: openbmc <openbmc-bounces+vijaykhemka=fb.com@lists.ozlabs.org<mailto:openbmc-bounces+vijaykhemka=fb.com@lists.ozlabs.org>> on behalf of Kumar Thangavel <thangavel.k@hcl.com<mailto:thangavel.k@hcl.com>>
Date: Sunday, November 17, 2019 at 7:44 PM
To: "openbmc@lists.ozlabs.org<mailto:openbmc@lists.ozlabs.org>" <openbmc@lists.ozlabs.org<mailto:openbmc@lists.ozlabs.org>>
Subject: Fan speed controller validation

Hi All,

Our product have Inlet temperature sensor and  two Fan with TACHO sensor feedback connected through Fan speed controller to BMC SoC.
We can able to read temperature sensor and control the Fan (PWM) through D-Bus interface.
All product specific configuration declared as JSON configuration file in Entity-Manager .
What is the procedure to  test  Fan Speed Controller(FSC)  based on STEP and PID based algorithm.

Please find the attached FanSensor dbus logs for your reference.

Thanks,
Kumar.








::DISCLAIMER::
________________________________
The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects.
________________________________

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