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e1000e: Revert "e1000e: Make watchdog use delayed work" 

This reverts commit 59653e6497.

This is due to this commit causing driver crashes and connections to
reset unexpectedly.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
This commit is contained in:
Jeff Kirsher 2020-01-04 23:29:22 -08:00
parent bb37362f34
commit d5ad7a6a7f
2 changed files with 27 additions and 32 deletions
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5
drivers/net/ethernet/intel/e1000e/e1000.h
View File

@ -185,13 +185,12 @@ struct e1000_phy_regs {
/* board specific private data structure */
struct e1000_adapter {
struct timer_list watchdog_timer;
struct timer_list phy_info_timer;
struct timer_list blink_timer;
struct work_struct reset_task;
struct delayed_work watchdog_task;
struct workqueue_struct *e1000_workqueue;
struct work_struct watchdog_task;
const struct e1000_info *ei;

54
drivers/net/ethernet/intel/e1000e/netdev.c
View File

@ -1780,8 +1780,7 @@ static irqreturn_t e1000_intr_msi(int __always_unused irq, void *data)
}
/* guard against interrupt when we're going down */
if (!test_bit(__E1000_DOWN, &adapter->state))
mod_delayed_work(adapter->e1000_workqueue,
&adapter->watchdog_task, HZ);
mod_timer(&adapter->watchdog_timer, jiffies + 1);
}
/* Reset on uncorrectable ECC error */
@ -1861,8 +1860,7 @@ static irqreturn_t e1000_intr(int __always_unused irq, void *data)
}
/* guard against interrupt when we're going down */
if (!test_bit(__E1000_DOWN, &adapter->state))
mod_delayed_work(adapter->e1000_workqueue,
&adapter->watchdog_task, HZ);
mod_timer(&adapter->watchdog_timer, jiffies + 1);
}
/* Reset on uncorrectable ECC error */
@ -1907,8 +1905,7 @@ static irqreturn_t e1000_msix_other(int __always_unused irq, void *data)
hw->mac.get_link_status = true;
/* guard against interrupt when we're going down */
if (!test_bit(__E1000_DOWN, &adapter->state))
mod_delayed_work(adapter->e1000_workqueue,
&adapter->watchdog_task, HZ);
mod_timer(&adapter->watchdog_timer, jiffies + 1);
}
if (!test_bit(__E1000_DOWN, &adapter->state))
@ -4284,6 +4281,7 @@ void e1000e_down(struct e1000_adapter *adapter, bool reset)
napi_synchronize(&adapter->napi);
del_timer_sync(&adapter->watchdog_timer);
del_timer_sync(&adapter->phy_info_timer);
spin_lock(&adapter->stats64_lock);
@ -5155,11 +5153,25 @@ static void e1000e_check_82574_phy_workaround(struct e1000_adapter *adapter)
}
}
/**
* e1000_watchdog - Timer Call-back
* @data: pointer to adapter cast into an unsigned long
**/
static void e1000_watchdog(struct timer_list *t)
{
struct e1000_adapter *adapter = from_timer(adapter, t, watchdog_timer);
/* Do the rest outside of interrupt context */
schedule_work(&adapter->watchdog_task);
/* TODO: make this use queue_delayed_work() */
}
static void e1000_watchdog_task(struct work_struct *work)
{
struct e1000_adapter *adapter = container_of(work,
struct e1000_adapter,
watchdog_task.work);
watchdog_task);
struct net_device *netdev = adapter->netdev;
struct e1000_mac_info *mac = &adapter->hw.mac;
struct e1000_phy_info *phy = &adapter->hw.phy;
@ -5407,9 +5419,8 @@ link_up:
/* Reset the timer */
if (!test_bit(__E1000_DOWN, &adapter->state))
queue_delayed_work(adapter->e1000_workqueue,
&adapter->watchdog_task,
round_jiffies(2 * HZ));
mod_timer(&adapter->watchdog_timer,
round_jiffies(jiffies + 2 * HZ));
}
#define E1000_TX_FLAGS_CSUM 0x00000001
@ -7449,21 +7460,11 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_eeprom;
}
adapter->e1000_workqueue = alloc_workqueue("%s", WQ_MEM_RECLAIM, 0,
e1000e_driver_name);
if (!adapter->e1000_workqueue) {
err = -ENOMEM;
goto err_workqueue;
}
INIT_DELAYED_WORK(&adapter->watchdog_task, e1000_watchdog_task);
queue_delayed_work(adapter->e1000_workqueue, &adapter->watchdog_task,
0);
timer_setup(&adapter->watchdog_timer, e1000_watchdog, 0);
timer_setup(&adapter->phy_info_timer, e1000_update_phy_info, 0);
INIT_WORK(&adapter->reset_task, e1000_reset_task);
INIT_WORK(&adapter->watchdog_task, e1000_watchdog_task);
INIT_WORK(&adapter->downshift_task, e1000e_downshift_workaround);
INIT_WORK(&adapter->update_phy_task, e1000e_update_phy_task);
INIT_WORK(&adapter->print_hang_task, e1000_print_hw_hang);
@ -7557,9 +7558,6 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
return 0;
err_register:
flush_workqueue(adapter->e1000_workqueue);
destroy_workqueue(adapter->e1000_workqueue);
err_workqueue:
if (!(adapter->flags & FLAG_HAS_AMT))
e1000e_release_hw_control(adapter);
err_eeprom:
@ -7604,17 +7602,15 @@ static void e1000_remove(struct pci_dev *pdev)
* from being rescheduled.
*/
set_bit(__E1000_DOWN, &adapter->state);
del_timer_sync(&adapter->watchdog_timer);
del_timer_sync(&adapter->phy_info_timer);
cancel_work_sync(&adapter->reset_task);
cancel_work_sync(&adapter->watchdog_task);
cancel_work_sync(&adapter->downshift_task);
cancel_work_sync(&adapter->update_phy_task);
cancel_work_sync(&adapter->print_hang_task);
cancel_delayed_work(&adapter->watchdog_task);
flush_workqueue(adapter->e1000_workqueue);
destroy_workqueue(adapter->e1000_workqueue);
if (adapter->flags & FLAG_HAS_HW_TIMESTAMP) {
cancel_work_sync(&adapter->tx_hwtstamp_work);
if (adapter->tx_hwtstamp_skb) {