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FS#559 - No Ethernet statistics on ag71xx #5518

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openwrt-bot opened this issue Feb 27, 2017 · 5 comments
Open

FS#559 - No Ethernet statistics on ag71xx #5518

openwrt-bot opened this issue Feb 27, 2017 · 5 comments
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@openwrt-bot
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jch:

On WNDR3700v2:

# ethtool -i eth1 | head -n 2
driver: ag71xx
version: 0.5.35
# ethtool -S eth1
no stats available

The only statistics available are the ones provided by ifconfig, but I'm not sure whether that is accurate — I'm not seeing any drops even under load.

Note that statistics are available on the switch (through swconfig show), it's only the SoC's interface that's impacted.

(While I'm at it, the driver is incomplete in other ways — there's no support for Pause frames or for scatter-gather, although a quick read of the datasheet indicates that it should be possible to implement these features. I'm not sure that's important, though.)

@openwrt-bot
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yousong:

Some stats will be available in debugfs when the following options are enabled

CONFIG_AG71XX_DEBUG=y CONFIG_AG71XX_DEBUG_FS=y

But it's true that relevant ethtool interface is not implemented yet.

@openwrt-bot
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jch:

@openwrt-bot
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jch:

Please leave open, even though nobody is working on it. This is a confirmed issue.

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yousong:

Okay, I see. There is actually a "Feature Request" Task Type.

It's a request for a feature that is good-to-have, but also seems to be not a priority for people viewing the tasklist thus far

I closed it mainly because "issues" like these will very likely rot in the tracker over time and accumulate to a point to make real bugs a minority. That will frustrate people I think.

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zentorin:

But it's true that relevant ethtool interface is not implemented yet.

For ethX interface, we can use CPU port statistics.
If this solution is correct, I can try to implement it later.

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