Commit d5ad7a6a authored by Jeff Kirsher's avatar Jeff Kirsher

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

This reverts commit 59653e64.

This is due to this commit causing driver crashes and connections to
reset unexpectedly.
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: default avatarAaron Brown <aaron.f.brown@intel.com>
parent bb37362f
...@@ -185,13 +185,12 @@ struct e1000_phy_regs { ...@@ -185,13 +185,12 @@ struct e1000_phy_regs {
/* board specific private data structure */ /* board specific private data structure */
struct e1000_adapter { struct e1000_adapter {
struct timer_list watchdog_timer;
struct timer_list phy_info_timer; struct timer_list phy_info_timer;
struct timer_list blink_timer; struct timer_list blink_timer;
struct work_struct reset_task; struct work_struct reset_task;
struct delayed_work watchdog_task; struct work_struct watchdog_task;
struct workqueue_struct *e1000_workqueue;
const struct e1000_info *ei; const struct e1000_info *ei;
......
...@@ -1780,8 +1780,7 @@ static irqreturn_t e1000_intr_msi(int __always_unused irq, void *data) ...@@ -1780,8 +1780,7 @@ static irqreturn_t e1000_intr_msi(int __always_unused irq, void *data)
} }
/* guard against interrupt when we're going down */ /* guard against interrupt when we're going down */
if (!test_bit(__E1000_DOWN, &adapter->state)) if (!test_bit(__E1000_DOWN, &adapter->state))
mod_delayed_work(adapter->e1000_workqueue, mod_timer(&adapter->watchdog_timer, jiffies + 1);
&adapter->watchdog_task, HZ);
} }
/* Reset on uncorrectable ECC error */ /* Reset on uncorrectable ECC error */
...@@ -1861,8 +1860,7 @@ static irqreturn_t e1000_intr(int __always_unused irq, void *data) ...@@ -1861,8 +1860,7 @@ static irqreturn_t e1000_intr(int __always_unused irq, void *data)
} }
/* guard against interrupt when we're going down */ /* guard against interrupt when we're going down */
if (!test_bit(__E1000_DOWN, &adapter->state)) if (!test_bit(__E1000_DOWN, &adapter->state))
mod_delayed_work(adapter->e1000_workqueue, mod_timer(&adapter->watchdog_timer, jiffies + 1);
&adapter->watchdog_task, HZ);
} }
/* Reset on uncorrectable ECC error */ /* Reset on uncorrectable ECC error */
...@@ -1907,8 +1905,7 @@ static irqreturn_t e1000_msix_other(int __always_unused irq, void *data) ...@@ -1907,8 +1905,7 @@ static irqreturn_t e1000_msix_other(int __always_unused irq, void *data)
hw->mac.get_link_status = true; hw->mac.get_link_status = true;
/* guard against interrupt when we're going down */ /* guard against interrupt when we're going down */
if (!test_bit(__E1000_DOWN, &adapter->state)) if (!test_bit(__E1000_DOWN, &adapter->state))
mod_delayed_work(adapter->e1000_workqueue, mod_timer(&adapter->watchdog_timer, jiffies + 1);
&adapter->watchdog_task, HZ);
} }
if (!test_bit(__E1000_DOWN, &adapter->state)) if (!test_bit(__E1000_DOWN, &adapter->state))
...@@ -4284,6 +4281,7 @@ void e1000e_down(struct e1000_adapter *adapter, bool reset) ...@@ -4284,6 +4281,7 @@ void e1000e_down(struct e1000_adapter *adapter, bool reset)
napi_synchronize(&adapter->napi); napi_synchronize(&adapter->napi);
del_timer_sync(&adapter->watchdog_timer);
del_timer_sync(&adapter->phy_info_timer); del_timer_sync(&adapter->phy_info_timer);
spin_lock(&adapter->stats64_lock); spin_lock(&adapter->stats64_lock);
...@@ -5155,11 +5153,25 @@ static void e1000e_check_82574_phy_workaround(struct e1000_adapter *adapter) ...@@ -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) static void e1000_watchdog_task(struct work_struct *work)
{ {
struct e1000_adapter *adapter = container_of(work, struct e1000_adapter *adapter = container_of(work,
struct e1000_adapter, struct e1000_adapter,
watchdog_task.work); watchdog_task);
struct net_device *netdev = adapter->netdev; struct net_device *netdev = adapter->netdev;
struct e1000_mac_info *mac = &adapter->hw.mac; struct e1000_mac_info *mac = &adapter->hw.mac;
struct e1000_phy_info *phy = &adapter->hw.phy; struct e1000_phy_info *phy = &adapter->hw.phy;
...@@ -5407,9 +5419,8 @@ static void e1000_watchdog_task(struct work_struct *work) ...@@ -5407,9 +5419,8 @@ static void e1000_watchdog_task(struct work_struct *work)
/* Reset the timer */ /* Reset the timer */
if (!test_bit(__E1000_DOWN, &adapter->state)) if (!test_bit(__E1000_DOWN, &adapter->state))
queue_delayed_work(adapter->e1000_workqueue, mod_timer(&adapter->watchdog_timer,
&adapter->watchdog_task, round_jiffies(jiffies + 2 * HZ));
round_jiffies(2 * HZ));
} }
#define E1000_TX_FLAGS_CSUM 0x00000001 #define E1000_TX_FLAGS_CSUM 0x00000001
...@@ -7449,21 +7460,11 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent) ...@@ -7449,21 +7460,11 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto err_eeprom; goto err_eeprom;
} }
adapter->e1000_workqueue = alloc_workqueue("%s", WQ_MEM_RECLAIM, 0, timer_setup(&adapter->watchdog_timer, e1000_watchdog, 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->phy_info_timer, e1000_update_phy_info, 0); timer_setup(&adapter->phy_info_timer, e1000_update_phy_info, 0);
INIT_WORK(&adapter->reset_task, e1000_reset_task); 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->downshift_task, e1000e_downshift_workaround);
INIT_WORK(&adapter->update_phy_task, e1000e_update_phy_task); INIT_WORK(&adapter->update_phy_task, e1000e_update_phy_task);
INIT_WORK(&adapter->print_hang_task, e1000_print_hw_hang); 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) ...@@ -7557,9 +7558,6 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
return 0; return 0;
err_register: err_register:
flush_workqueue(adapter->e1000_workqueue);
destroy_workqueue(adapter->e1000_workqueue);
err_workqueue:
if (!(adapter->flags & FLAG_HAS_AMT)) if (!(adapter->flags & FLAG_HAS_AMT))
e1000e_release_hw_control(adapter); e1000e_release_hw_control(adapter);
err_eeprom: err_eeprom:
...@@ -7604,17 +7602,15 @@ static void e1000_remove(struct pci_dev *pdev) ...@@ -7604,17 +7602,15 @@ static void e1000_remove(struct pci_dev *pdev)
* from being rescheduled. * from being rescheduled.
*/ */
set_bit(__E1000_DOWN, &adapter->state); set_bit(__E1000_DOWN, &adapter->state);
del_timer_sync(&adapter->watchdog_timer);
del_timer_sync(&adapter->phy_info_timer); del_timer_sync(&adapter->phy_info_timer);
cancel_work_sync(&adapter->reset_task); cancel_work_sync(&adapter->reset_task);
cancel_work_sync(&adapter->watchdog_task);
cancel_work_sync(&adapter->downshift_task); cancel_work_sync(&adapter->downshift_task);
cancel_work_sync(&adapter->update_phy_task); cancel_work_sync(&adapter->update_phy_task);
cancel_work_sync(&adapter->print_hang_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) { if (adapter->flags & FLAG_HAS_HW_TIMESTAMP) {
cancel_work_sync(&adapter->tx_hwtstamp_work); cancel_work_sync(&adapter->tx_hwtstamp_work);
if (adapter->tx_hwtstamp_skb) { if (adapter->tx_hwtstamp_skb) {
......
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