Commit 0c3b091b authored by Mirko Lindner's avatar Mirko Lindner Committed by David S. Miller
Browse files

[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: default avatarDavid S. Miller <davem@davemloft.net>
parent f194d132

drivers/net/niu.c

+18 −4
Original line number Diff line number Diff line
@@ -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;

}