On Tuesday 23 October 2007 15:31:07 Anas Nashif wrote:
> Andrew,
>
> Thanks for the feedback.
>
> Andrew Morton wrote:
> > On Mon, 22 Oct 2007 13:22:38 -0400 Anas Nashif <[email protected]> wrote:
> >>
> >> The patch is large so I'm placing the diff on the web for download
> >> rather than attaching it here. Download:
> >>
> >> http://download.openamt.org/intel-MEI.diff
> >
> > Please get the patches mailed out somehow. Consider splitting the patch
> > up. I think you could send it as-is (200k will fit, I believe) but it's
> > rather too large to review effectively.
> >
> > The code looks good from a quick scan. Immediate impressions from a
> > quick scan, mainly trivia:
> >
>
> We will fix the issues below and send the revised patch to the list.
>
> >
> >
> > - Why does a new driver have "additional char device for legacy mode"?
> >
>
> It is not quite new. What is currently considered legacy was supported
> on Linux with a driver that was never submitted upstream (although it is
> open-source and available from e1000.sf.net).
> Some applications still use the legacy interface (KCS style) and have to
> be supported with the new driver as well.
>
> (...)
>
> > - The changelog could do with some expansion. What is "Intel(R)
> > Manageability Engine (ME) firmware"? Why do we want to include this code
> > in Linux? What value has it to our users, etc? Bascially: tell us more
> > stuff.
>
> The core hardware architecture of Intel Active Management Technology
> (Intel AMT) is resident in firmware. The micro-controller within the
> chipset's graphics and memory controller (MCH) hub houses the Management
> Engine (ME) firmware, which implements various services on behalf of
> management applications. Additionally, flash memory houses system BIOS,
> code used by the management engine, and a third-party data store (3PDS)
> that enables applications to store information as needed in non-volatile
> memory.
>
> Communication between the host OS and the ME is accomplished by means of
> the Intel Management Engine Interface (aka HECI: Host Embedded
> Controller Interface ). MEI is bi-directional, and either the host or
> Intel AMT firmware can initiate transactions.
>
> Some of the ME subsystems that can be access via MEI driver:
>
> - Intel(R) Quiet System Technology (QST) is implemented as a firmware
> subsystem that runs in the ME. Programs that wish to expose the
> health monitoring and fan speed control capabilities of Intel(R) QST
> will need to use the MEI driver to communicate with the ME sub-system.
> - ASF is the "Alert Standard Format" which is an DMTF manageability
> standard. It is implemented in the PC's hardware and firmware, and is
> managed from a remote console.
>
> Most recent Intel desktop chipsets have one or more of the above ME
> services. The MEI driver will make it possible to support the above
> features on Linux and provides applications access to the ME and it's
> features. The MEI drivers will also help bridge a current gap related to
> lm_sensors support on recent desktop chipsets.
Care to tell me, and other users of recent intel motherboards,
when QST tool to access HW sensors will be released, or at least
is it developed?
>
>
> Anas
>
>
> -
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>
Best regards,
Maxim Levitsky
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