From: Antoine Tenart <antoine.tenart@free-electrons.com>
Date: Mon, 11 Dec 2017 08:13:29 +0000 (+0100)
Subject: net: mvpp2: adjust the coalescing parameters
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=86162281c25fd76e604978ffa0b2838e86ad4287;p=openwrt%2Fstaging%2Fblogic.git

net: mvpp2: adjust the coalescing parameters

This patch adjust the coalescing parameters to the vendor
recommendations for the PPv2 network controller.

Suggested-by: Yan Markman <ymarkman@marvell.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c
index aa72109290c3..a19760736b71 100644
--- a/drivers/net/ethernet/marvell/mvpp2.c
+++ b/drivers/net/ethernet/marvell/mvpp2.c
@@ -454,11 +454,11 @@
 /* Various constants */
 
 /* Coalescing */
-#define MVPP2_TXDONE_COAL_PKTS_THRESH	15
+#define MVPP2_TXDONE_COAL_PKTS_THRESH	64
 #define MVPP2_TXDONE_HRTIMER_PERIOD_NS	1000000UL
 #define MVPP2_TXDONE_COAL_USEC		1000
 #define MVPP2_RX_COAL_PKTS		32
-#define MVPP2_RX_COAL_USEC		100
+#define MVPP2_RX_COAL_USEC		64
 
 /* The two bytes Marvell header. Either contains a special value used
  * by Marvell switches when a specific hardware mode is enabled (not