netdev - [PATCH net-next 1/6] net: hip04: Set more appropriate value for tx coalesce num

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Date:	Wed, 15 Apr 2015 20:30:03 +0800
From:	Ding Tianhong <dingtianhong@...wei.com>
To:	<arnd@...db.de>, <davem@...emloft.net>, <grant.likely@...aro.org>
CC:	<sergei.shtylyov@...entembedded.com>,
	<linux-arm-kernel@...ts.infradead.org>, <eric.dumazet@...il.com>,
	<zhangfei.gao@...aro.org>, <joe@...ches.com>,
	<netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux@....linux.org.uk>
Subject: [PATCH net-next 1/6] net: hip04: Set more appropriate value for tx coalesce num

According Arnd's suggestion, the user might set the tx coalesce value
in large range for different workloads, so we should define them to
appropriate value.

Signed-off-by: Ding Tianhong <dingtianhong@...wei.com>
Cc: "David S. Miller" <davem@...emloft.net>
Cc: Eric Dumazet <eric.dumazet@...il.com>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Zhangfei Gao <zhangfei.gao@...aro.org>
Cc: Dan Carpenter <dan.carpenter@...cle.com>
Cc: Joe Perches <joe@...ches.com>
---
 drivers/net/ethernet/hisilicon/hip04_eth.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c
index b72d238..b0a7f03 100644
--- a/drivers/net/ethernet/hisilicon/hip04_eth.c
+++ b/drivers/net/ethernet/hisilicon/hip04_eth.c
@@ -126,10 +126,10 @@
 #define DRV_NAME			"hip04-ether"
 #define DRV_VERSION			"v1.0"
 
-#define HIP04_MAX_TX_COALESCE_USECS	200
-#define HIP04_MIN_TX_COALESCE_USECS	100
-#define HIP04_MAX_TX_COALESCE_FRAMES	200
-#define HIP04_MIN_TX_COALESCE_FRAMES	100
+#define HIP04_MAX_TX_COALESCE_USECS	100000
+#define HIP04_MIN_TX_COALESCE_USECS	1
+#define HIP04_MAX_TX_COALESCE_FRAMES	(TX_DESC_NUM - 1)
+#define HIP04_MIN_TX_COALESCE_FRAMES	1
 
 struct tx_desc {
 	u32 send_addr;
-- 
1.8.0


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