Re: gpsd-dev Digest, Vol 136, Issue 8

[Gary E. Miller]

Yo Danny!

On Fri, 24 Feb 2023 04:47:05 +0000
"Kuo, Danny" <danny.kuo@intel.com> wrote:

> Looks like the github send out email in different time ordering, so I
> copy and answer Gary's question here:

GitHub?

> What kind of Linux drivers use major device numbers 238 or 510?
> Ans: I am not quit sure, maybe it is a proprietary number from Intel
> driver develop team, if below information not able to tell I will add
> driver developer into this discussion thread.

You misunderstand the question.  major device numbers 238 and 510
are dynamically assigned by linux when the matching modules are loaded.
So, not proprietary, dynamic.  The only way to know the attached
driver is from your dmesg, or similar.

> Do you know the driver name for those?
> Ans: this is Intel E810 Ethernet chip which use "ice" driver, you can
> download from link
> https://sourceforge.net/projects/e1000/files/ice%20stable/ The latest
> version is ice-1.11.14

6MB of source?  If the guy that wrote that contacts us here, then I may
look at that.  Otherwise way too much work for us to do your debugging
for free.  Especially with zero documentation.

Got any documentation for that?

> Maybe the lshw I asked for will help explain that.
> Ans: info from lshw you can keep as record, it is 4 port NIC

Weird.  But I see why someone may want a GNSS on an SFP card.

> Since we know the E810 is a network card, with no GNSS on it, what is
> the device you are really working on? Ans: E810 is controller name
> while there are lot of sku for different speed and purpose(datacenter
> or edge), the one with GNSS is "E810-XXV-4T", the "T" means time sync
> NIC. See below lspci output And the product details you can download
> from
> https://www.intel.com/content/www/us/en/products/sku/211608/intel-ethernet-network-adapter-e810xxvda4t/specifications.html

Nothing there about GNSS.  No real "details" at all.  It points to some doc,
but nothing in that doc about thee GNSS receiver.  So, again, not helpful.

I find this very concerning:

    Supported Operating Systems Red Hat Linux*

Maybe if there was some real documentation...

> # lspci -vvs 0000:86:00.0 | head -2
> 86:00.0 Ethernet controller: Intel Corporation Ethernet Controller
> E810-C for SFP (rev 02) Subsystem: Intel Corporation Ethernet Network
> Adapter E810-XXV-4T

You helpfully removed tha parts I asked for...

Does this thing work with minicom?

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        gem@rellim.com  Tel:+1 541 382 8588

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    "If you can't measure it, you can't improve it." - Lord Kelvin

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