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From: Keith Busch <>
To: Guenter Roeck <>
Cc: Sagi Grimberg <>,,,,
	Akinobu Mita <>, Jens Axboe <>,
	Christoph Hellwig <>, Chris Healy <>
Subject: Re: [PATCH v5] nvme: Add hardware monitoring support
Date: Fri, 8 Nov 2019 10:02:37 +0900	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Wed, Nov 06, 2019 at 06:35:18AM -0800, 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 be able 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.
> Example output from the "sensors" command:
> nvme0-pci-0100
> Adapter: PCI adapter
> Composite:    +39.0°C  (high = +85.0°C, crit = +85.0°C)
> Sensor 1:     +39.0°C
> Sensor 2:     +41.0°C
> Reviewed-by: Christoph Hellwig <>
> Signed-off-by: Guenter Roeck <>

Thanks, applied for 5.5

Linux-nvme mailing list

      reply	other threads:[~2019-11-08  1:02 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-06 14:35 Guenter Roeck
2019-11-08  1:02 ` Keith Busch [this message]

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