diff options
| -rw-r--r-- | drivers/net/sky2.c | 55 | ||||
| -rw-r--r-- | drivers/net/sky2.h | 3 |
2 files changed, 27 insertions, 31 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 33ba3486389e..00c5f056ef7e 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -99,10 +99,6 @@ static int disable_msi = 0; module_param(disable_msi, int, 0); MODULE_PARM_DESC(disable_msi, "Disable Message Signaled Interrupt (MSI)"); -static int idle_timeout = 100; -module_param(idle_timeout, int, 0); -MODULE_PARM_DESC(idle_timeout, "Watchdog timer for lost interrupts (ms)"); - static const struct pci_device_id sky2_id_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9000) }, /* SK-9Sxx */ { PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, 0x9E00) }, /* SK-9Exx */ @@ -1624,6 +1620,9 @@ static int sky2_down(struct net_device *dev) if (netif_msg_ifdown(sky2)) printk(KERN_INFO PFX "%s: disabling interface\n", dev->name); + if (netif_carrier_ok(dev) && --hw->active == 0) + del_timer(&hw->watchdog_timer); + /* Stop more packets from being queued */ netif_stop_queue(dev); @@ -1744,6 +1743,10 @@ static void sky2_link_up(struct sky2_port *sky2) netif_carrier_on(sky2->netdev); + if (hw->active++ == 0) + mod_timer(&hw->watchdog_timer, jiffies + 1); + + /* Turn on link LED */ sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF); @@ -1795,6 +1798,11 @@ static void sky2_link_down(struct sky2_port *sky2) netif_carrier_off(sky2->netdev); + /* Stop watchdog if both ports are not active */ + if (--hw->active == 0) + del_timer(&hw->watchdog_timer); + + /* Turn on link LED */ sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF); @@ -2426,25 +2434,20 @@ static void sky2_le_error(struct sky2_hw *hw, unsigned port, sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_IRQ_CHK); } -/* If idle then force a fake soft NAPI poll once a second - * to work around cases where sharing an edge triggered interrupt. - */ -static inline void sky2_idle_start(struct sky2_hw *hw) -{ - if (idle_timeout > 0) - mod_timer(&hw->idle_timer, - jiffies + msecs_to_jiffies(idle_timeout)); -} - -static void sky2_idle(unsigned long arg) +/* Check for lost IRQ once a second */ +static void sky2_watchdog(unsigned long arg) { struct sky2_hw *hw = (struct sky2_hw *) arg; - struct net_device *dev = hw->dev[0]; - if (__netif_rx_schedule_prep(dev)) - __netif_rx_schedule(dev); + if (sky2_read32(hw, B0_ISRC)) { + struct net_device *dev = hw->dev[0]; + + if (__netif_rx_schedule_prep(dev)) + __netif_rx_schedule(dev); + } - mod_timer(&hw->idle_timer, jiffies + msecs_to_jiffies(idle_timeout)); + if (hw->active > 0) + mod_timer(&hw->watchdog_timer, round_jiffies(jiffies + HZ)); } /* Hardware/software error handling */ @@ -2732,8 +2735,6 @@ static void sky2_restart(struct work_struct *work) struct net_device *dev; int i, err; - del_timer_sync(&hw->idle_timer); - rtnl_lock(); sky2_write32(hw, B0_IMSK, 0); sky2_read32(hw, B0_IMSK); @@ -2762,8 +2763,6 @@ static void sky2_restart(struct work_struct *work) } } - sky2_idle_start(hw); - rtnl_unlock(); } @@ -4030,11 +4029,9 @@ static int __devinit sky2_probe(struct pci_dev *pdev, sky2_show_addr(dev1); } - setup_timer(&hw->idle_timer, sky2_idle, (unsigned long) hw); + setup_timer(&hw->watchdog_timer, sky2_watchdog, (unsigned long) hw); INIT_WORK(&hw->restart_work, sky2_restart); - sky2_idle_start(hw); - pci_set_drvdata(pdev, hw); return 0; @@ -4069,7 +4066,7 @@ static void __devexit sky2_remove(struct pci_dev *pdev) if (!hw) return; - del_timer_sync(&hw->idle_timer); + del_timer_sync(&hw->watchdog_timer); flush_scheduled_work(); @@ -4113,7 +4110,6 @@ static int sky2_suspend(struct pci_dev *pdev, pm_message_t state) if (!hw) return 0; - del_timer_sync(&hw->idle_timer); netif_poll_disable(hw->dev[0]); for (i = 0; i < hw->ports; i++) { @@ -4179,7 +4175,7 @@ static int sky2_resume(struct pci_dev *pdev) } netif_poll_enable(hw->dev[0]); - sky2_idle_start(hw); + return 0; out: dev_err(&pdev->dev, "resume failed (%d)\n", err); @@ -4196,7 +4192,6 @@ static void sky2_shutdown(struct pci_dev *pdev) if (!hw) return; - del_timer_sync(&hw->idle_timer); netif_poll_disable(hw->dev[0]); for (i = 0; i < hw->ports; i++) { diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h index dce4d276d443..72e12b7cfa40 100644 --- a/drivers/net/sky2.h +++ b/drivers/net/sky2.h @@ -2045,12 +2045,13 @@ struct sky2_hw { u8 chip_rev; u8 pmd_type; u8 ports; + u8 active; struct sky2_status_le *st_le; u32 st_idx; dma_addr_t st_dma; - struct timer_list idle_timer; + struct timer_list watchdog_timer; struct work_struct restart_work; int msi; wait_queue_head_t msi_wait; |