[PATCH] net: thunderx: Fix for Qset error due to CQ full

[David Miller]

From: sunil.kovvuri at gmail.com
Date: Wed, 24 Feb 2016 16:40:50 +0530

> From: Sunil Goutham <sgoutham at cavium.com>
> 
> On Thunderx pass 1.x and pass2 due to a HW errata default CQ
> DROP_LEVEL of 0x80 is not sufficient to avoid CQ_WR_FULL Qset
> error when packets are being received at >20Mpps resulting in
> complete stall of packet reception.
> 
> This patch will configure it to 0x100 which is what is expected
> by HW on Thunderx. On future passes of thunderx and other chips
> HW default/reset value will be 0x100 or higher hence not overwritten.
> 
> Signed-off-by: Jerin Jacob <jerin.jacob at caviumnetworks.com>
> Signed-off-by: Sunil Goutham <sgoutham at cavium.com>

Applied, thank you.