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mv643xx_eth: print message on link status change 

When there is a link status change (link or phy status interrupt),
print a message notifying the user of the new link status.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
This commit is contained in:
Lennert Buytenhek 2008-07-24 06:22:59 +02:00 committed by Lennert Buytenhek
parent 81600eea98
commit 2f7eb47a7b
1 changed files with 69 additions and 22 deletions
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91
drivers/net/mv643xx_eth.c
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@ -91,6 +91,12 @@ static char mv643xx_eth_driver_version[] = "1.1";
#define PORT_STATUS(p) (0x0444 + ((p) << 10))
#define TX_FIFO_EMPTY 0x00000400
#define TX_IN_PROGRESS 0x00000080
#define PORT_SPEED_MASK 0x00000030
#define PORT_SPEED_1000 0x00000010
#define PORT_SPEED_100 0x00000020
#define PORT_SPEED_10 0x00000000
#define FLOW_CONTROL_ENABLED 0x00000008
#define FULL_DUPLEX 0x00000004
#define LINK_UP 0x00000002
#define TXQ_COMMAND(p) (0x0448 + ((p) << 10))
#define TXQ_FIX_PRIO_CONF(p) (0x044c + ((p) << 10))
@ -1679,6 +1685,64 @@ static void txq_deinit(struct tx_queue *txq)
/* netdev ops and related ***************************************************/
static void handle_link_event(struct mv643xx_eth_private *mp)
{
struct net_device *dev = mp->dev;
u32 port_status;
int speed;
int duplex;
int fc;
port_status = rdl(mp, PORT_STATUS(mp->port_num));
if (!(port_status & LINK_UP)) {
if (netif_carrier_ok(dev)) {
int i;
printk(KERN_INFO "%s: link down\n", dev->name);
netif_carrier_off(dev);
netif_stop_queue(dev);
for (i = 0; i < 8; i++) {
struct tx_queue *txq = mp->txq + i;
if (mp->txq_mask & (1 << i)) {
txq_reclaim(txq, 1);
txq_reset_hw_ptr(txq);
}
}
}
return;
}
switch (port_status & PORT_SPEED_MASK) {
case PORT_SPEED_10:
speed = 10;
break;
case PORT_SPEED_100:
speed = 100;
break;
case PORT_SPEED_1000:
speed = 1000;
break;
default:
speed = -1;
break;
}
duplex = (port_status & FULL_DUPLEX) ? 1 : 0;
fc = (port_status & FLOW_CONTROL_ENABLED) ? 1 : 0;
printk(KERN_INFO "%s: link up, %d Mb/s, %s duplex, "
"flow control %sabled\n", dev->name,
speed, duplex ? "full" : "half",
fc ? "en" : "dis");
if (!netif_carrier_ok(dev)) {
netif_carrier_on(dev);
netif_wake_queue(dev);
}
}
static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
@ -1698,28 +1762,8 @@ static irqreturn_t mv643xx_eth_irq(int irq, void *dev_id)
wrl(mp, INT_CAUSE_EXT(mp->port_num), ~int_cause_ext);
}
if (int_cause_ext & (INT_EXT_PHY | INT_EXT_LINK)) {
if (rdl(mp, PORT_STATUS(mp->port_num)) & LINK_UP) {
if (!netif_carrier_ok(dev)) {
netif_carrier_on(dev);
netif_wake_queue(dev);
}
} else if (netif_carrier_ok(dev)) {
int i;
netif_stop_queue(dev);
netif_carrier_off(dev);
for (i = 0; i < 8; i++) {
struct tx_queue *txq = mp->txq + i;
if (mp->txq_mask & (1 << i)) {
txq_reclaim(txq, 1);
txq_reset_hw_ptr(txq);
}
}
}
}
if (int_cause_ext & (INT_EXT_PHY | INT_EXT_LINK))
handle_link_event(mp);
/*
* RxBuffer or RxError set for any of the 8 queues?
@ -1970,6 +2014,9 @@ static int mv643xx_eth_open(struct net_device *dev)
napi_enable(&mp->napi);
#endif
netif_carrier_off(dev);
netif_stop_queue(dev);
port_start(mp);
set_rx_coal(mp, 0);