Hello David,
I can observe a netdev watchdog timeout on kernel 4.14.78 when using stmmac
with multiple tx queues.
Backporting the following commit:
commit 52a76235d0c4dd259cd0df503afed4757c04ba1d
Author: Jose Abreu <[email protected]>
Date: Fri Oct 13 10:58:36 2017 +0100
net: stmmac: Use correct values in TQS/RQS fields
Currently we are using all the available fifo size in RQS and
TQS fields. This will not work correctly in multi-queues IP's
because total fifo size must be splitted to the enabled queues.
Correct this by computing the available fifo size per queue and
setting the right value in TQS and RQS fields.
Signed-off-by: Jose Abreu <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Joao Pinto <[email protected]>
Cc: Giuseppe Cavallaro <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
resolves the issue.
The fix was first included in v4.15
$ git tag --contains 52a76235d0c4dd259cd0df503afed4757c04ba1d
v4.15
v4.15-rc1
v4.15-rc2
Could you please queue it up for 4.14 stable?
Kind regards,
Niklas
