Messages in this thread | | | Date | Mon, 28 Oct 2019 08:39:53 +0100 | From | Christoph Hellwig <> | Subject | Re: [PATCH] nvme: Add hardware monitoring support |
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On Sun, Oct 27, 2019 at 07:41:56PM -0700, Guenter Roeck wrote: > nvme devices report temperature information in the controller information > (for limits) and in the smart log. Currently, the only means to retrieve > this information is the nvme command line interface, which requires > super-user privileges. > > At the same time, it would be desirable to use NVME temperature information > for thermal control. > > This patch adds support to read NVME temperatures from the kernel using the > hwmon API and adds temperature zones for NVME drives. The thermal subsystem > can use this information to set thermal policies, and userspace can access > it using libsensors and/or the "sensors" command.
So these reported values seem to generate some interest. Adding Akinobu Mita who also planned to wire them up to the thermal framework. I don't really know either upper layer so I'm not sure which is the right one, but with this just like with the previous series I am quite worried that we add a lot of kernel boilerplate code for information people can trivially get using nvme-cli.
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