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ixgbe: merge reset task into service task

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This change is meant to further help to reduce possible configuration
collisions between the various tasklets.  This change combines the device
reset with the service task.  As a result it is now not possible to be
updating the link on the device while also resetting the part.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Evan Swanson <evan.swanson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Alexander Duyck 2011-04-27 09:21:16 +00:00 committed by Jeff Kirsher
parent 93c52dd003
commit c83c6cbdbf
2 changed files with 38 additions and 24 deletions
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2
drivers/net/ixgbe/ixgbe.h
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@ -381,6 +381,7 @@ struct ixgbe_adapter {
#define IXGBE_FLAG2_TEMP_SENSOR_CAPABLE (u32)(1 << 2)
#define IXGBE_FLAG2_SEARCH_FOR_SFP (u32)(1 << 4)
#define IXGBE_FLAG2_SFP_NEEDS_RESET (u32)(1 << 5)
#define IXGBE_FLAG2_RESET_REQUESTED (u32)(1 << 6)
unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
u16 bd_number;
@ -454,7 +455,6 @@ struct ixgbe_adapter {
bool link_up;
unsigned long link_check_timeout;
struct work_struct reset_task;
struct work_struct fdir_reinit_task;
struct work_struct check_overtemp_task;
struct work_struct service_task;

60
drivers/net/ixgbe/ixgbe_main.c
View File

@ -833,7 +833,19 @@ static inline bool ixgbe_check_tx_hang(struct ixgbe_ring *tx_ring)
#define DESC_NEEDED (TXD_USE_COUNT(IXGBE_MAX_DATA_PER_TXD) /* skb->data */ + \
MAX_SKB_FRAGS * TXD_USE_COUNT(PAGE_SIZE) + 1) /* for context */
static void ixgbe_tx_timeout(struct net_device *netdev);
/**
* ixgbe_tx_timeout_reset - initiate reset due to Tx timeout
* @adapter: driver private struct
**/
static void ixgbe_tx_timeout_reset(struct ixgbe_adapter *adapter)
{
/* Do the reset outside of interrupt context */
if (!test_bit(__IXGBE_DOWN, &adapter->state)) {
adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED;
ixgbe_service_event_schedule(adapter);
}
}
/**
* ixgbe_clean_tx_irq - Reclaim resources after transmit completes
@ -915,7 +927,7 @@ static bool ixgbe_clean_tx_irq(struct ixgbe_q_vector *q_vector,
adapter->tx_timeout_count + 1, tx_ring->queue_index);
/* schedule immediate reset if we believe we hung */
ixgbe_tx_timeout(adapter->netdev);
ixgbe_tx_timeout_reset(adapter);
/* the adapter is about to reset, no point in enabling stuff */
return true;
@ -4186,6 +4198,7 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
ixgbe_napi_disable_all(adapter);
adapter->flags2 &= ~IXGBE_FLAG2_RESET_REQUESTED;
adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE;
del_timer_sync(&adapter->service_timer);
@ -4288,25 +4301,8 @@ static void ixgbe_tx_timeout(struct net_device *netdev)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
adapter->tx_timeout_count++;
/* Do the reset outside of interrupt context */
schedule_work(&adapter->reset_task);
}
static void ixgbe_reset_task(struct work_struct *work)
{
struct ixgbe_adapter *adapter;
adapter = container_of(work, struct ixgbe_adapter, reset_task);
/* If we're already down or resetting, just bail */
if (test_bit(__IXGBE_DOWN, &adapter->state) ||
test_bit(__IXGBE_RESETTING, &adapter->state))
return;
ixgbe_dump(adapter);
netdev_err(adapter->netdev, "Reset adapter\n");
ixgbe_reinit_locked(adapter);
ixgbe_tx_timeout_reset(adapter);
}
/**
@ -6174,7 +6170,7 @@ static void ixgbe_watchdog_flush_tx(struct ixgbe_adapter *adapter)
* to get done, so reset controller to flush Tx.
* (Do the reset outside of interrupt context).
*/
schedule_work(&adapter->reset_task);
adapter->flags2 |= IXGBE_FLAG2_RESET_REQUESTED;
}
}
}
@ -6341,6 +6337,25 @@ static void ixgbe_service_timer(unsigned long data)
ixgbe_service_event_schedule(adapter);
}
static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter)
{
if (!(adapter->flags2 & IXGBE_FLAG2_RESET_REQUESTED))
return;
adapter->flags2 &= ~IXGBE_FLAG2_RESET_REQUESTED;
/* If we're already down or resetting, just bail */
if (test_bit(__IXGBE_DOWN, &adapter->state) ||
test_bit(__IXGBE_RESETTING, &adapter->state))
return;
ixgbe_dump(adapter);
netdev_err(adapter->netdev, "Reset adapter\n");
adapter->tx_timeout_count++;
ixgbe_reinit_locked(adapter);
}
/**
* ixgbe_service_task - manages and runs subtasks
* @work: pointer to work_struct containing our data
@ -6351,6 +6366,7 @@ static void ixgbe_service_task(struct work_struct *work)
struct ixgbe_adapter,
service_task);
ixgbe_reset_subtask(adapter);
ixgbe_sfp_detection_subtask(adapter);
ixgbe_sfp_link_config_subtask(adapter);
ixgbe_watchdog_subtask(adapter);
@ -7533,8 +7549,6 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
setup_timer(&adapter->service_timer, &ixgbe_service_timer,
(unsigned long) adapter);
INIT_WORK(&adapter->reset_task, ixgbe_reset_task);
INIT_WORK(&adapter->service_task, ixgbe_service_task);
clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state);