From: Russell King <rmk+ker...@armlinux.org.uk>
Date: Wed, 20 May 2020 12:26:35 +0100
> When rxhash is enabled on any ethernet port except the first in each CP
> block, traffic flow is prevented. The analysis is below:
...
> So, this patch attempts to solve the issue by clearing the
> MVPP2_CLS_SWFWD_PCTRL_MASK() bit, allowing MVPP22_CLS_C2_ATTR0_QHIGH()
> from the classifier to define the queue-high field of the queue number.
>
> My testing seems to confirm my findings above - clearing this bit
> means that if I enable rxhash on eth2, the interface can then pass
> traffic, as we are now directing traffic to RX queue 1 rather than
> queue 33. Traffic still seems to work with rxhash off as well.
>
> Reported-by: Matteo Croce <mcr...@redhat.com>
> Tested-by: Matteo Croce <mcr...@redhat.com>
> Fixes: 895586d5dc32 ("net: mvpp2: cls: Use RSS contexts to handle RSS tables")
> Signed-off-by: Russell King <rmk+ker...@armlinux.org.uk>
Applied and queued up for -stable, thanks Russell.
