[PATCH v2 7/8] [PATCH 7/8] drivers/hwmon: Add a generic PECI hwmon client driver

Jae Hyun Yoo jae.hyun.yoo at linux.intel.com
Thu Feb 22 12:29:27 AEDT 2018

On 2/21/2018 4:37 PM, Andrew Lunn wrote:
>> But even with this change, it still needs to use delayed creation
>> because BMC side kernel doesn't know how many DIMMs are populated on
>> a remote server before the remote server completes its memory
>> training and testing in BIOS, but it needs to check the remote
>> server's CPU temperature as immediate as possible to make
>> appropriate thermal control based on the remote CPU's temperature to
>> avoid any critical thermal issue. What would be a better solution in
>> this case?
> You could change this driver so that it supports one DIMM.  Move the
> 'hotplug' part into another driver which creates and destroys
> instances of the hwmon DIMM device as the DIMMS come and go.
> Also, do you need to handle CPU hotplug? You could split the CPU
> temperature part into a separate hwmon driver? And again create and
> destroy devices as CPUs come and go?
> 	Andrew

That seems like a possible option. I'll rewrite the hwmon driver again 
like that.

Thanks for the good idea. :)


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