[OpenWrt-Devel] [PATCH RFC 0/5] ath79: add micro non-physical true RNG based on timing jitter

[Petr Štetiar]

Etienne Champetier <champetier.etienne at gmail.com> [2019-05-25 12:43:25]:

> Just to be clear i'm 100% in favor of your effort to have random pool init
> done fast on all devices, and your solution, based on Stephan awsome work,
> seems really good I just want to be sure we don't make some devices worse /
> are not missing something

FYI, I've just added more devices to the testing before submitting the next
round of patches, and got following on the MT7620A based device:

 root at OpenWrt:/# cat /proc/cpuinfo
 system type             : MediaTek MT7620A ver:2 eco:6
 machine                 : BDCOM WAP2100-SK
 processor               : 0
 cpu model               : MIPS 24KEc V5.0

 root at OpenWrt:/# cat /sys/devices/system/clocksource/clocksource0/available_clocksource
 systick MIPS

 root at OpenWrt:/# /sbin/urngd 
 jent-rng init failed, err: 2

Where that error 2 is ECOARSETIME. It makes me wonder if there's something
which could be tweaked on kernel side in order to provide better environment
for jent-rng on this quite still popular SoC.

-- ynezz

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