[NIU]: Fix link LED handling.

The LED in the current driver will not be controlled correctly. During
a link change the carrier of the link is not available and the LED
will never turn on.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/niu.c b/drivers/net/niu.c
index 112ab07..abfc61c 100644 (file)
--- a/drivers/net/niu.c
+++ b/drivers/net/niu.c
@@ -1045,6 +1045,7 @@ static int niu_serdes_init(struct niu *np)
 }
 
 static void niu_init_xif(struct niu *);
+static void niu_handle_led(struct niu *, int status);
 
 static int niu_link_status_common(struct niu *np, int link_up)
 {
@@ -1066,11 +1067,15 @@ static int niu_link_status_common(struct niu *np, int link_up)
 
                spin_lock_irqsave(&np->lock, flags);
                niu_init_xif(np);
+               niu_handle_led(np, 1);
                spin_unlock_irqrestore(&np->lock, flags);
 
                netif_carrier_on(dev);
        } else if (netif_carrier_ok(dev) && !link_up) {
                niuwarn(LINK, "%s: Link is down\n", dev->name);
+               spin_lock_irqsave(&np->lock, flags);
+               niu_handle_led(np, 0);
+               spin_unlock_irqrestore(&np->lock, flags);
                netif_carrier_off(dev);
        }
 
@@ -3915,16 +3920,14 @@ static int niu_init_ipp(struct niu *np)
        return 0;
 }
 
-static void niu_init_xif_xmac(struct niu *np)
+static void niu_handle_led(struct niu *np, int status)
 {
-       struct niu_link_config *lp = &np->link_config;
        u64 val;
-
        val = nr64_mac(XMAC_CONFIG);
 
        if ((np->flags & NIU_FLAGS_10G) != 0 &&
            (np->flags & NIU_FLAGS_FIBER) != 0) {
-               if (netif_carrier_ok(np->dev)) {
+               if (status) {
                        val |= XMAC_CONFIG_LED_POLARITY;
                        val &= ~XMAC_CONFIG_FORCE_LED_ON;
                } else {
@@ -3933,6 +3936,15 @@ static void niu_init_xif_xmac(struct niu *np)
                }
        }
 
+       nw64_mac(XMAC_CONFIG, val);
+}
+
+static void niu_init_xif_xmac(struct niu *np)
+{
+       struct niu_link_config *lp = &np->link_config;
+       u64 val;
+
+       val = nr64_mac(XMAC_CONFIG);
        val &= ~XMAC_CONFIG_SEL_POR_CLK_SRC;
 
        val |= XMAC_CONFIG_TX_OUTPUT_EN;
@@ -4776,6 +4788,8 @@ static int niu_close(struct net_device *dev)
 
        niu_free_channels(np);
 
+       niu_handle_led(np, 0);
+
        return 0;
 }