[ar71xx] ag71xx: add initial message level support

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12262 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h

@@ -37,7 +37,7 @@
 #define ETH_FCS_LEN	4
 
 #define AG71XX_DRV_NAME		"ag71xx"
-#define AG71XX_DRV_VERSION	"0.4.0"
+#define AG71XX_DRV_VERSION	"0.4.1"
 
 #define AG71XX_NAPI_TX		1
 
@@ -120,6 +120,7 @@ struct ag71xx {
 	struct platform_device	*pdev;
 	struct net_device	*dev;
 	struct napi_struct	napi;
+	u32			msg_enable;
 
 	struct ag71xx_ring	rx_ring;
 	struct ag71xx_ring	tx_ring;

target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ethtool.c

@@ -47,9 +47,25 @@ static void ag71xx_ethtool_get_drvinfo(struct net_device *dev,
 	strcpy(info->bus_info, ag->pdev->dev.bus_id);
 }
 
+static u32 ag71xx_ethtool_get_msglevel(struct net_device *dev)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+
+	return ag->msg_enable;
+}
+
+static void ag71xx_ethtool_set_msglevel(struct net_device *dev, u32 msg_level)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+
+	ag->msg_enable = msg_level;
+}
+
 struct ethtool_ops ag71xx_ethtool_ops = {
 	.set_settings	= ag71xx_ethtool_set_settings,
 	.get_settings	= ag71xx_ethtool_get_settings,
 	.get_drvinfo	= ag71xx_ethtool_get_drvinfo,
+	.get_msglevel	= ag71xx_ethtool_get_msglevel,
+	.set_msglevel	= ag71xx_ethtool_set_msglevel,
 	.get_link	= ethtool_op_get_link,
 };

target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c

@@ -13,6 +13,21 @@
 
 #include "ag71xx.h"
 
+#define AG71XX_DEFAULT_MSG_ENABLE	\
+	( NETIF_MSG_DRV 		\
+	| NETIF_MSG_PROBE		\
+	| NETIF_MSG_LINK		\
+	| NETIF_MSG_TIMER		\
+	| NETIF_MSG_IFDOWN		\
+	| NETIF_MSG_IFUP		\
+	| NETIF_MSG_RX_ERR		\
+	| NETIF_MSG_TX_ERR )
+
+static int ag71xx_debug = -1;
+
+module_param(ag71xx_debug, int, 0);
+MODULE_PARM_DESC(ag71xx_debug, "Debug level (-1=defaults,0=none,...,16=all)");
+
 static void ag71xx_dump_regs(struct ag71xx *ag)
 {
 	DBG("%s: mac_cfg1=%08x, mac_cfg2=%08x, ipg=%08x, hdx=%08x, mfl=%08x\n",
@@ -601,8 +616,9 @@ static int ag71xx_poll(struct napi_struct *napi, int limit)
 	}
 
 	if (status & AG71XX_INT_RX_OF) {
-		printk(KERN_ALERT "%s: rx owerflow, restarting dma\n",
-			dev->name);
+		if (netif_msg_rx_err(ag))
+			printk(KERN_ALERT "%s: rx owerflow, restarting dma\n",
+				dev->name);
 
 		/* ack interrupt */
 		ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_OF);
@@ -692,6 +708,8 @@ static int __init ag71xx_probe(struct platform_device *pdev)
 	ag->pdev = pdev;
 	ag->dev = dev;
 	ag->mii_bus = &ag71xx_mdio_bus->mii_bus;
+	ag->msg_enable = netif_msg_init(ag71xx_debug,
+					AG71XX_DEFAULT_MSG_ENABLE);
 	spin_lock_init(&ag->lock);
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base");

target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_phy.c

@@ -87,7 +87,8 @@ static void ag71xx_phy_link_update(struct ag71xx *ag)
 
 	if (!ag->link) {
 		netif_carrier_off(ag->dev);
-		printk(KERN_INFO "%s: link down\n", ag->dev->name);
+		if (netif_msg_link(ag))
+			printk(KERN_INFO "%s: link down\n", ag->dev->name);
 		return;
 	}
 
@@ -133,10 +134,11 @@ static void ag71xx_phy_link_update(struct ag71xx *ag)
 	ag71xx_wr(ag, AG71XX_REG_MAC_IFCTL, ifctl);
 
 	netif_carrier_on(ag->dev);
-	printk(KERN_INFO "%s: link up (%sMbps/%s duplex)\n",
-		ag->dev->name,
-		ag71xx_speed_str(ag),
-		(DUPLEX_FULL == ag->duplex) ? "Full" : "Half");
+	if (netif_msg_link(ag))
+		printk(KERN_INFO "%s: link up (%sMbps/%s duplex)\n",
+			ag->dev->name,
+			ag71xx_speed_str(ag),
+			(DUPLEX_FULL == ag->duplex) ? "Full" : "Half");
 
 	DBG("%s: fifo1=%#x, fifo2=%#x, fifo3=%#x, fifo4=%#x, fifo5=%#x\n",
 		ag->dev->name,