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[TG3]: Add tg3_restart_hw()

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Add tg3_restart_hw() to handle failures when re-initializing the
device.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2006-07-25 16:37:27 -07:00 committed by David S. Miller
parent d569f1d72f
commit b9ec6c1b91
1 changed files with 58 additions and 22 deletions
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80
drivers/net/tg3.c
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@ -3590,6 +3590,28 @@ static irqreturn_t tg3_test_isr(int irq, void *dev_id,
static int tg3_init_hw(struct tg3 *, int);
static int tg3_halt(struct tg3 *, int, int);
/* Restart hardware after configuration changes, self-test, etc.
* Invoked with tp->lock held.
*/
static int tg3_restart_hw(struct tg3 *tp, int reset_phy)
{
int err;
err = tg3_init_hw(tp, reset_phy);
if (err) {
printk(KERN_ERR PFX "%s: Failed to re-initialize device, "
"aborting.\n", tp->dev->name);
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
tg3_full_unlock(tp);
del_timer_sync(&tp->timer);
tp->irq_sync = 0;
netif_poll_enable(tp->dev);
dev_close(tp->dev);
tg3_full_lock(tp, 0);
}
return err;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
static void tg3_poll_controller(struct net_device *dev)
{
@ -3630,13 +3652,15 @@ static void tg3_reset_task(void *_data)
}
tg3_halt(tp, RESET_KIND_SHUTDOWN, 0);
tg3_init_hw(tp, 1);
if (tg3_init_hw(tp, 1))
goto out;
tg3_netif_start(tp);
if (restart_timer)
mod_timer(&tp->timer, jiffies + 1);
out:
tp->tg3_flags &= ~TG3_FLAG_IN_RESET_TASK;
tg3_full_unlock(tp);
@ -4124,6 +4148,7 @@ static inline void tg3_set_mtu(struct net_device *dev, struct tg3 *tp,
static int tg3_change_mtu(struct net_device *dev, int new_mtu)
{
struct tg3 *tp = netdev_priv(dev);
int err;
if (new_mtu < TG3_MIN_MTU || new_mtu > TG3_MAX_MTU(tp))
return -EINVAL;
@ -4144,13 +4169,14 @@ static int tg3_change_mtu(struct net_device *dev, int new_mtu)
tg3_set_mtu(dev, tp, new_mtu);
tg3_init_hw(tp, 0);
err = tg3_restart_hw(tp, 0);
tg3_netif_start(tp);
if (!err)
tg3_netif_start(tp);
tg3_full_unlock(tp);
return 0;
return err;
}
/* Free up pending packets in all rx/tx rings.
@ -5815,6 +5841,7 @@ static int tg3_set_mac_addr(struct net_device *dev, void *p)
{
struct tg3 *tp = netdev_priv(dev);
struct sockaddr *addr = p;
int err = 0;
if (!is_valid_ether_addr(addr->sa_data))
return -EINVAL;
@ -5832,9 +5859,9 @@ static int tg3_set_mac_addr(struct net_device *dev, void *p)
tg3_full_lock(tp, 1);
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
tg3_init_hw(tp, 0);
tg3_netif_start(tp);
err = tg3_restart_hw(tp, 0);
if (!err)
tg3_netif_start(tp);
tg3_full_unlock(tp);
} else {
spin_lock_bh(&tp->lock);
@ -5842,7 +5869,7 @@ static int tg3_set_mac_addr(struct net_device *dev, void *p)
spin_unlock_bh(&tp->lock);
}
return 0;
return err;
}
/* tp->lock is held. */
@ -7956,7 +7983,7 @@ static void tg3_get_ringparam(struct net_device *dev, struct ethtool_ringparam *
static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *ering)
{
struct tg3 *tp = netdev_priv(dev);
int irq_sync = 0;
int irq_sync = 0, err = 0;
if ((ering->rx_pending > TG3_RX_RING_SIZE - 1) ||
(ering->rx_jumbo_pending > TG3_RX_JUMBO_RING_SIZE - 1) ||
@ -7980,13 +8007,14 @@ static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *e
if (netif_running(dev)) {
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
tg3_init_hw(tp, 1);
tg3_netif_start(tp);
err = tg3_restart_hw(tp, 1);
if (!err)
tg3_netif_start(tp);
}
tg3_full_unlock(tp);
return 0;
return err;
}
static void tg3_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
@ -8001,7 +8029,7 @@ static void tg3_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam
static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *epause)
{
struct tg3 *tp = netdev_priv(dev);
int irq_sync = 0;
int irq_sync = 0, err = 0;
if (netif_running(dev)) {
tg3_netif_stop(tp);
@ -8025,13 +8053,14 @@ static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam
if (netif_running(dev)) {
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
tg3_init_hw(tp, 1);
tg3_netif_start(tp);
err = tg3_restart_hw(tp, 1);
if (!err)
tg3_netif_start(tp);
}
tg3_full_unlock(tp);
return 0;
return err;
}
static u32 tg3_get_rx_csum(struct net_device *dev)
@ -8666,7 +8695,9 @@ static int tg3_test_loopback(struct tg3 *tp)
if (!netif_running(tp->dev))
return TG3_LOOPBACK_FAILED;
tg3_reset_hw(tp, 1);
err = tg3_reset_hw(tp, 1);
if (err)
return TG3_LOOPBACK_FAILED;
if (tg3_run_loopback(tp, TG3_MAC_LOOPBACK))
err |= TG3_MAC_LOOPBACK_FAILED;
@ -8740,8 +8771,8 @@ static void tg3_self_test(struct net_device *dev, struct ethtool_test *etest,
tg3_halt(tp, RESET_KIND_SHUTDOWN, 1);
if (netif_running(dev)) {
tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
tg3_init_hw(tp, 1);
tg3_netif_start(tp);
if (!tg3_restart_hw(tp, 1))
tg3_netif_start(tp);
}
tg3_full_unlock(tp);
@ -11699,7 +11730,8 @@ static int tg3_suspend(struct pci_dev *pdev, pm_message_t state)
tg3_full_lock(tp, 0);
tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
tg3_init_hw(tp, 1);
if (tg3_restart_hw(tp, 1))
goto out;
tp->timer.expires = jiffies + tp->timer_offset;
add_timer(&tp->timer);
@ -11707,6 +11739,7 @@ static int tg3_suspend(struct pci_dev *pdev, pm_message_t state)
netif_device_attach(dev);
tg3_netif_start(tp);
out:
tg3_full_unlock(tp);
}
@ -11733,16 +11766,19 @@ static int tg3_resume(struct pci_dev *pdev)
tg3_full_lock(tp, 0);
tp->tg3_flags |= TG3_FLAG_INIT_COMPLETE;
tg3_init_hw(tp, 1);
err = tg3_restart_hw(tp, 1);
if (err)
goto out;
tp->timer.expires = jiffies + tp->timer_offset;
add_timer(&tp->timer);
tg3_netif_start(tp);
out:
tg3_full_unlock(tp);
return 0;
return err;
}
static struct pci_driver tg3_driver = {