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Allow to focus on exchanging soundings only during SLAC #112

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merged 3 commits into from
Dec 13, 2017

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@mhei mhei commented Nov 13, 2017

The QCA7000 firmware (or better: HomePlug Green PHY as such) does not provide rich possibilities for connection quality checks like other chipsets do. For example with QCA7500 it's possible to transfer some amount of data, then check the average data rate and use this value as connection quality indicator. As this is not possible with QCA7000, one possible indicator value could be the signal attenuation when both sides are SLAC capable.

This PR modifies the existings tools evse and pev to allow focusing on the sounding step only. In other words, it is possible to use the part of a complete SLAC session to determine the attenuation between two PLC peers without the overhead of changing NMK, waiting for QCA7000 reboots etc.
This is intended to be used e.g. in a test bed where this overhead is not desired or required.

And while documenting the new parameters, this PR also contains patches to bring the man pages back in sync with implementation.

Signed-off-by: Michael Heimpold michael.heimpold@i2se.com

mhei added 3 commits November 2, 2017 09:36
Signed-off-by: Michael Heimpold <michael.heimpold@i2se.com>
Signed-off-by: Michael Heimpold <michael.heimpold@i2se.com>
This enhances the evse and pev tool to skip the step which sets
the NMK and other stuff and focus on the sounding part only to
determine attenuation. This can be used for example during a
device test bed, where only the sounding step should be run to
speedup the whole process.

Signed-off-by: Michael Heimpold <michael.heimpold@i2se.com>
@ch-aurich ch-aurich merged commit 2208779 into qca:master Dec 13, 2017
@mhei mhei deleted the slac-minimal-test branch December 13, 2017 09:00
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2 participants