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

Miguel Ojeda miguel.ojeda.sandonis at gmail.com
Sat Feb 24 11:00:47 AEDT 2018

On Thu, Feb 22, 2018 at 2:29 AM, Jae Hyun Yoo
<jae.hyun.yoo at linux.intel.com> wrote:
> 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. :)

By the way, in the rewrite, please try to avoid the create*workqueue()
functions (they are deprecated :).


> Jae

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