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tlan: Enable link monitoring 

Enable old link monitoring code and modify it:
 - control LINK LED
 - use separate timer so it does not interfere with ACT LED

Tested with Olicom OC-2326.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ondrej Zary 2014-06-30 18:38:28 +02:00 committed by David S. Miller
parent eb522bb4e0
commit c0a87c22d3
2 changed files with 47 additions and 67 deletions
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111
drivers/net/ethernet/ti/tlan.c
View File

@ -69,10 +69,6 @@ MODULE_AUTHOR("Maintainer: Samuel Chessman <chessman@tux.org>");
MODULE_DESCRIPTION("Driver for TI ThunderLAN based ethernet PCI adapters");
MODULE_LICENSE("GPL");
/* Define this to enable Link beat monitoring */
#undef MONITOR
/* Turn on debugging. See Documentation/networking/tlan.txt for details */
static int debug;
module_param(debug, int, 0);
@ -194,9 +190,7 @@ static void tlan_phy_power_up(struct net_device *);
static void tlan_phy_reset(struct net_device *);
static void tlan_phy_start_link(struct net_device *);
static void tlan_phy_finish_auto_neg(struct net_device *);
#ifdef MONITOR
static void tlan_phy_monitor(struct net_device *);
#endif
static void tlan_phy_monitor(unsigned long);
/*
static int tlan_phy_nop(struct net_device *);
@ -339,6 +333,7 @@ static void tlan_stop(struct net_device *dev)
{
struct tlan_priv *priv = netdev_priv(dev);
del_timer_sync(&priv->media_timer);
tlan_read_and_clear_stats(dev, TLAN_RECORD);
outl(TLAN_HC_AD_RST, dev->base_addr + TLAN_HOST_CMD);
/* Reset and power down phy */
@ -888,6 +883,7 @@ static int tlan_open(struct net_device *dev)
}
init_timer(&priv->timer);
init_timer(&priv->media_timer);
tlan_start(dev);
@ -1810,11 +1806,6 @@ static void tlan_timer(unsigned long data)
priv->timer.function = NULL;
switch (priv->timer_type) {
#ifdef MONITOR
case TLAN_TIMER_LINK_BEAT:
tlan_phy_monitor(dev);
break;
#endif
case TLAN_TIMER_PHY_PDOWN:
tlan_phy_power_down(dev);
break;
@ -1858,8 +1849,6 @@ static void tlan_timer(unsigned long data)
}
/*****************************************************************************
******************************************************************************
@ -2257,42 +2246,39 @@ tlan_finish_reset(struct net_device *dev)
tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
udelay(1000);
tlan_mii_read_reg(dev, phy, MII_GEN_STS, &status);
if ((status & MII_GS_LINK) &&
/* We only support link info on Nat.Sem. PHY's */
(tlphy_id1 == NAT_SEM_ID1) &&
(tlphy_id2 == NAT_SEM_ID2)) {
tlan_mii_read_reg(dev, phy, MII_AN_LPA, &partner);
tlan_mii_read_reg(dev, phy, TLAN_TLPHY_PAR, &tlphy_par);
if (status & MII_GS_LINK) {
/* We only support link info on Nat.Sem. PHY's */
if ((tlphy_id1 == NAT_SEM_ID1) &&
(tlphy_id2 == NAT_SEM_ID2)) {
tlan_mii_read_reg(dev, phy, MII_AN_LPA,
&partner);
tlan_mii_read_reg(dev, phy, TLAN_TLPHY_PAR,
&tlphy_par);
netdev_info(dev,
"Link active with %s %uMbps %s-Duplex\n",
!(tlphy_par & TLAN_PHY_AN_EN_STAT)
? "forced" : "Autonegotiation enabled,",
tlphy_par & TLAN_PHY_SPEED_100
? 100 : 10,
tlphy_par & TLAN_PHY_DUPLEX_FULL
? "Full" : "Half");
netdev_info(dev,
"Link active, %s %uMbps %s-Duplex\n",
!(tlphy_par & TLAN_PHY_AN_EN_STAT)
? "forced" : "Autonegotiation enabled,",
tlphy_par & TLAN_PHY_SPEED_100
? 100 : 10,
tlphy_par & TLAN_PHY_DUPLEX_FULL
? "Full" : "Half");
if (tlphy_par & TLAN_PHY_AN_EN_STAT) {
netdev_info(dev, "Partner capability:");
for (i = 5; i < 10; i++)
if (partner & (1 << i))
pr_cont(" %s", media[i-5]);
pr_cont("\n");
}
tlan_dio_write8(dev->base_addr, TLAN_LED_REG,
TLAN_LED_LINK);
#ifdef MONITOR
/* We have link beat..for now anyway */
priv->link = 1;
/*Enabling link beat monitoring */
tlan_set_timer(dev, (10*HZ), TLAN_TIMER_LINK_BEAT);
#endif
} else if (status & MII_GS_LINK) {
netdev_info(dev, "Link active\n");
tlan_dio_write8(dev->base_addr, TLAN_LED_REG,
TLAN_LED_LINK);
if (tlphy_par & TLAN_PHY_AN_EN_STAT) {
netdev_info(dev, "Partner capability:");
for (i = 5; i < 10; i++)
if (partner & (1 << i))
pr_cont(" %s",
media[i-5]);
pr_cont("\n");
}
} else
netdev_info(dev, "Link active\n");
/* Enabling link beat monitoring */
priv->media_timer.function = tlan_phy_monitor;
priv->media_timer.data = (unsigned long) dev;
priv->media_timer.expires = jiffies + HZ;
add_timer(&priv->media_timer);
}
}
@ -2314,6 +2300,7 @@ tlan_finish_reset(struct net_device *dev)
dev->base_addr + TLAN_HOST_CMD + 1);
outl(priv->rx_list_dma, dev->base_addr + TLAN_CH_PARM);
outl(TLAN_HC_GO | TLAN_HC_RT, dev->base_addr + TLAN_HOST_CMD);
tlan_dio_write8(dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK);
netif_carrier_on(dev);
} else {
netdev_info(dev, "Link inactive, will retry in 10 secs...\n");
@ -2719,7 +2706,6 @@ static void tlan_phy_finish_auto_neg(struct net_device *dev)
}
#ifdef MONITOR
/*********************************************************************
*
@ -2729,18 +2715,18 @@ static void tlan_phy_finish_auto_neg(struct net_device *dev)
* None
*
* Params:
* dev The device structure of this device.
* data The device structure of this device.
*
*
* This function monitors PHY condition by reading the status
* register via the MII bus. This can be used to give info
* about link changes (up/down), and possible switch to alternate
* media.
* register via the MII bus, controls LINK LED and notifies the
* kernel about link state.
*
*******************************************************************/
void tlan_phy_monitor(struct net_device *dev)
static void tlan_phy_monitor(unsigned long data)
{
struct net_device *dev = (struct net_device *) data;
struct tlan_priv *priv = netdev_priv(dev);
u16 phy;
u16 phy_status;
@ -2752,30 +2738,25 @@ void tlan_phy_monitor(struct net_device *dev)
/* Check if link has been lost */
if (!(phy_status & MII_GS_LINK)) {
if (priv->link) {
priv->link = 0;
if (netif_carrier_ok(dev)) {
printk(KERN_DEBUG "TLAN: %s has lost link\n",
dev->name);
tlan_dio_write8(dev->base_addr, TLAN_LED_REG, 0);
netif_carrier_off(dev);
tlan_set_timer(dev, (2*HZ), TLAN_TIMER_LINK_BEAT);
return;
}
}
/* Link restablished? */
if ((phy_status & MII_GS_LINK) && !priv->link) {
priv->link = 1;
if ((phy_status & MII_GS_LINK) && !netif_carrier_ok(dev)) {
tlan_dio_write8(dev->base_addr, TLAN_LED_REG, TLAN_LED_LINK);
printk(KERN_DEBUG "TLAN: %s has reestablished link\n",
dev->name);
netif_carrier_on(dev);
}
/* Setup a new monitor */
tlan_set_timer(dev, (2*HZ), TLAN_TIMER_LINK_BEAT);
priv->media_timer.expires = jiffies + HZ;
add_timer(&priv->media_timer);
}
#endif /* MONITOR */
/*****************************************************************************
******************************************************************************

3
drivers/net/ethernet/ti/tlan.h
View File

@ -195,6 +195,7 @@ struct tlan_priv {
u32 timer_set_at;
u32 timer_type;
struct timer_list timer;
struct timer_list media_timer;
struct board *adapter;
u32 adapter_rev;
u32 aui;
@ -206,7 +207,6 @@ struct tlan_priv {
u8 tlan_rev;
u8 tlan_full_duplex;
spinlock_t lock;
u8 link;
struct work_struct tlan_tqueue;
u8 neg_be_verbose;
};
@ -219,7 +219,6 @@ struct tlan_priv {
*
****************************************************************/
#define TLAN_TIMER_LINK_BEAT 1
#define TLAN_TIMER_ACTIVITY 2
#define TLAN_TIMER_PHY_PDOWN 3
#define TLAN_TIMER_PHY_PUP 4