Commit b9ec6c1b authored by Michael Chan's avatar Michael Chan Committed by David S. Miller

[TG3]: Add tg3_restart_hw()

Add tg3_restart_hw() to handle failures when re-initializing the
device.
Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d569f1d7
......@@ -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);
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;
......@@ -5832,8 +5859,8 @@ 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);
err = tg3_restart_hw(tp, 0);
if (!err)
tg3_netif_start(tp);
tg3_full_unlock(tp);
} else {
......@@ -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);
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);
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;
......@@ -8740,7 +8771,7 @@ 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);
if (!tg3_restart_hw(tp, 1))
tg3_netif_start(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 = {
......
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