realtek: eth: use free floating rings for RTL838x
The ring counters on RTL83xx allow a space of up to 15 entries.
But rings can be filled faster than data is received and might be
much larger defined (128 at the moment). Also NAPI processing
allows much more than 15 packets to be processed in one chunk.
Disable the counters and let the hardware automatically detect
the available buffers by the ownership flag. With this disable
a pseudo workaround that tried to mitigate the buffer filling
on RTL838x due to wrong setup.
Remark. This commit fixes several inconsistencies in the setup
code. RTL838x runs the setup twice with different values. RTL839x
does not run the setup at all.
Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/21856
Signed-off-by: Robert Marko <robimarko@gmail.com>
projects / thirdparty / openwrt.git / commit
