if (!test_bit(__IXGBE_DOWN, &adapter->state)) {
IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_EIMC_LSC);
IXGBE_WRITE_FLUSH(hw);
- schedule_work(&adapter->watchdog_task);
+ ixgbe_service_event_schedule(adapter);
}
}
* link up interrupt but shouldn't be a problem */
adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE;
adapter->link_check_timeout = jiffies;
- mod_timer(&adapter->watchdog_timer, jiffies);
mod_timer(&adapter->service_timer, jiffies);
/* Set PF Reset Done bit so PF/VF Mail Ops can work */
netif_tx_stop_all_queues(netdev);
- del_timer_sync(&adapter->watchdog_timer);
- cancel_work_sync(&adapter->watchdog_task);
/* call carrier off first to avoid false dev_watchdog timeouts */
netif_carrier_off(netdev);
netif_tx_disable(netdev);
}
/**
- * ixgbe_watchdog - Timer Call-back
- * @data: pointer to adapter cast into an unsigned long
+ * ixgbe_fdir_reinit_task - worker thread to reinit FDIR filter table
+ * @work: pointer to work_struct containing our data
**/
-static void ixgbe_watchdog(unsigned long data)
+static void ixgbe_fdir_reinit_task(struct work_struct *work)
+{
+ struct ixgbe_adapter *adapter = container_of(work,
+ struct ixgbe_adapter,
+ fdir_reinit_task);
+ struct ixgbe_hw *hw = &adapter->hw;
+ int i;
+
+ if (ixgbe_reinit_fdir_tables_82599(hw) == 0) {
+ for (i = 0; i < adapter->num_tx_queues; i++)
+ set_bit(__IXGBE_TX_FDIR_INIT_DONE,
+ &(adapter->tx_ring[i]->state));
+ } else {
+ e_err(probe, "failed to finish FDIR re-initialization, "
+ "ignored adding FDIR ATR filters\n");
+ }
+ /* Done FDIR Re-initialization, enable transmits */
+ netif_tx_start_all_queues(adapter->netdev);
+}
+
+/**
+ * ixgbe_check_hang_subtask - check for hung queues and dropped interrupts
+ * @adapter - pointer to the device adapter structure
+ *
+ * This function serves two purposes. First it strobes the interrupt lines
+ * in order to make certain interrupts are occuring. Secondly it sets the
+ * bits needed to check for TX hangs. As a result we should immediately
+ * determine if a hang has occured.
+ */
+static void ixgbe_check_hang_subtask(struct ixgbe_adapter *adapter)
{
- struct ixgbe_adapter *adapter = (struct ixgbe_adapter *)data;
struct ixgbe_hw *hw = &adapter->hw;
u64 eics = 0;
int i;
- /*
- * Do the watchdog outside of interrupt context due to the lovely
- * delays that some of the newer hardware requires
- */
+ /* If we're down or resetting, just bail */
+ if (test_bit(__IXGBE_DOWN, &adapter->state) ||
+ test_bit(__IXGBE_RESETTING, &adapter->state))
+ return;
- if (test_bit(__IXGBE_DOWN, &adapter->state))
- goto watchdog_short_circuit;
+ /* Force detection of hung controller */
+ if (netif_carrier_ok(adapter->netdev)) {
+ for (i = 0; i < adapter->num_tx_queues; i++)
+ set_check_for_tx_hang(adapter->tx_ring[i]);
+ }
if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) {
/*
*/
IXGBE_WRITE_REG(hw, IXGBE_EICS,
(IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER));
- goto watchdog_reschedule;
- }
-
- /* get one bit for every active tx/rx interrupt vector */
- for (i = 0; i < adapter->num_msix_vectors - NON_Q_VECTORS; i++) {
- struct ixgbe_q_vector *qv = adapter->q_vector[i];
- if (qv->rxr_count || qv->txr_count)
- eics |= ((u64)1 << i);
+ } else {
+ /* get one bit for every active tx/rx interrupt vector */
+ for (i = 0; i < adapter->num_msix_vectors - NON_Q_VECTORS; i++) {
+ struct ixgbe_q_vector *qv = adapter->q_vector[i];
+ if (qv->rxr_count || qv->txr_count)
+ eics |= ((u64)1 << i);
+ }
}
- /* Cause software interrupt to ensure rx rings are cleaned */
+ /* Cause software interrupt to ensure rings are cleaned */
ixgbe_irq_rearm_queues(adapter, eics);
-watchdog_reschedule:
- /* Reset the timer */
- mod_timer(&adapter->watchdog_timer, round_jiffies(jiffies + 2 * HZ));
-
-watchdog_short_circuit:
- schedule_work(&adapter->watchdog_task);
}
/**
- * ixgbe_fdir_reinit_task - worker thread to reinit FDIR filter table
- * @work: pointer to work_struct containing our data
+ * ixgbe_watchdog_update_link - update the link status
+ * @adapter - pointer to the device adapter structure
+ * @link_speed - pointer to a u32 to store the link_speed
**/
-static void ixgbe_fdir_reinit_task(struct work_struct *work)
+static void ixgbe_watchdog_update_link(struct ixgbe_adapter *adapter)
{
- struct ixgbe_adapter *adapter = container_of(work,
- struct ixgbe_adapter,
- fdir_reinit_task);
struct ixgbe_hw *hw = &adapter->hw;
+ u32 link_speed = adapter->link_speed;
+ bool link_up = adapter->link_up;
int i;
- if (ixgbe_reinit_fdir_tables_82599(hw) == 0) {
- for (i = 0; i < adapter->num_tx_queues; i++)
- set_bit(__IXGBE_TX_FDIR_INIT_DONE,
- &(adapter->tx_ring[i]->state));
+ if (!(adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE))
+ return;
+
+ if (hw->mac.ops.check_link) {
+ hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
} else {
- e_err(probe, "failed to finish FDIR re-initialization, "
- "ignored adding FDIR ATR filters\n");
+ /* always assume link is up, if no check link function */
+ link_speed = IXGBE_LINK_SPEED_10GB_FULL;
+ link_up = true;
}
- /* Done FDIR Re-initialization, enable transmits */
- netif_tx_start_all_queues(adapter->netdev);
+ if (link_up) {
+ if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
+ for (i = 0; i < MAX_TRAFFIC_CLASS; i++)
+ hw->mac.ops.fc_enable(hw, i);
+ } else {
+ hw->mac.ops.fc_enable(hw, 0);
+ }
+ }
+
+ if (link_up ||
+ time_after(jiffies, (adapter->link_check_timeout +
+ IXGBE_TRY_LINK_TIMEOUT))) {
+ adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE;
+ IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMC_LSC);
+ IXGBE_WRITE_FLUSH(hw);
+ }
+
+ adapter->link_up = link_up;
+ adapter->link_speed = link_speed;
}
-static void ixgbe_spoof_check(struct ixgbe_adapter *adapter)
+/**
+ * ixgbe_watchdog_link_is_up - update netif_carrier status and
+ * print link up message
+ * @adapter - pointer to the device adapter structure
+ **/
+static void ixgbe_watchdog_link_is_up(struct ixgbe_adapter *adapter)
{
- u32 ssvpc;
+ struct net_device *netdev = adapter->netdev;
+ struct ixgbe_hw *hw = &adapter->hw;
+ u32 link_speed = adapter->link_speed;
+ bool flow_rx, flow_tx;
- /* Do not perform spoof check for 82598 */
- if (adapter->hw.mac.type == ixgbe_mac_82598EB)
+ /* only continue if link was previously down */
+ if (netif_carrier_ok(netdev))
return;
- ssvpc = IXGBE_READ_REG(&adapter->hw, IXGBE_SSVPC);
+ adapter->flags2 &= ~IXGBE_FLAG2_SEARCH_FOR_SFP;
- /*
- * ssvpc register is cleared on read, if zero then no
- * spoofed packets in the last interval.
- */
- if (!ssvpc)
- return;
+ switch (hw->mac.type) {
+ case ixgbe_mac_82598EB: {
+ u32 frctl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
+ u32 rmcs = IXGBE_READ_REG(hw, IXGBE_RMCS);
+ flow_rx = !!(frctl & IXGBE_FCTRL_RFCE);
+ flow_tx = !!(rmcs & IXGBE_RMCS_TFCE_802_3X);
+ }
+ break;
+ case ixgbe_mac_X540:
+ case ixgbe_mac_82599EB: {
+ u32 mflcn = IXGBE_READ_REG(hw, IXGBE_MFLCN);
+ u32 fccfg = IXGBE_READ_REG(hw, IXGBE_FCCFG);
+ flow_rx = !!(mflcn & IXGBE_MFLCN_RFCE);
+ flow_tx = !!(fccfg & IXGBE_FCCFG_TFCE_802_3X);
+ }
+ break;
+ default:
+ flow_tx = false;
+ flow_rx = false;
+ break;
+ }
+ e_info(drv, "NIC Link is Up %s, Flow Control: %s\n",
+ (link_speed == IXGBE_LINK_SPEED_10GB_FULL ?
+ "10 Gbps" :
+ (link_speed == IXGBE_LINK_SPEED_1GB_FULL ?
+ "1 Gbps" :
+ (link_speed == IXGBE_LINK_SPEED_100_FULL ?
+ "100 Mbps" :
+ "unknown speed"))),
+ ((flow_rx && flow_tx) ? "RX/TX" :
+ (flow_rx ? "RX" :
+ (flow_tx ? "TX" : "None"))));
- e_warn(drv, "%d Spoofed packets detected\n", ssvpc);
+ netif_carrier_on(netdev);
+#ifdef HAVE_IPLINK_VF_CONFIG
+ ixgbe_check_vf_rate_limit(adapter);
+#endif /* HAVE_IPLINK_VF_CONFIG */
}
-static DEFINE_MUTEX(ixgbe_watchdog_lock);
-
/**
- * ixgbe_watchdog_task - worker thread to bring link up
- * @work: pointer to work_struct containing our data
+ * ixgbe_watchdog_link_is_down - update netif_carrier status and
+ * print link down message
+ * @adapter - pointer to the adapter structure
**/
-static void ixgbe_watchdog_task(struct work_struct *work)
+static void ixgbe_watchdog_link_is_down(struct ixgbe_adapter* adapter)
{
- struct ixgbe_adapter *adapter = container_of(work,
- struct ixgbe_adapter,
- watchdog_task);
struct net_device *netdev = adapter->netdev;
struct ixgbe_hw *hw = &adapter->hw;
- u32 link_speed;
- bool link_up;
- int i;
- struct ixgbe_ring *tx_ring;
- int some_tx_pending = 0;
-
- mutex_lock(&ixgbe_watchdog_lock);
- link_up = adapter->link_up;
- link_speed = adapter->link_speed;
+ adapter->link_up = false;
+ adapter->link_speed = 0;
- if (adapter->flags & IXGBE_FLAG_NEED_LINK_UPDATE) {
- hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
- if (link_up) {
-#ifdef CONFIG_DCB
- if (adapter->flags & IXGBE_FLAG_DCB_ENABLED) {
- for (i = 0; i < MAX_TRAFFIC_CLASS; i++)
- hw->mac.ops.fc_enable(hw, i);
- } else {
- hw->mac.ops.fc_enable(hw, 0);
- }
-#else
- hw->mac.ops.fc_enable(hw, 0);
-#endif
- }
+ /* only continue if link was up previously */
+ if (!netif_carrier_ok(netdev))
+ return;
- if (link_up ||
- time_after(jiffies, (adapter->link_check_timeout +
- IXGBE_TRY_LINK_TIMEOUT))) {
- adapter->flags &= ~IXGBE_FLAG_NEED_LINK_UPDATE;
- IXGBE_WRITE_REG(hw, IXGBE_EIMS, IXGBE_EIMC_LSC);
- }
- adapter->link_up = link_up;
- adapter->link_speed = link_speed;
- }
+ /* poll for SFP+ cable when link is down */
+ if (ixgbe_is_sfp(hw) && hw->mac.type == ixgbe_mac_82598EB)
+ adapter->flags2 |= IXGBE_FLAG2_SEARCH_FOR_SFP;
- if (link_up) {
- if (!netif_carrier_ok(netdev)) {
- bool flow_rx, flow_tx;
-
- switch (hw->mac.type) {
- case ixgbe_mac_82598EB: {
- u32 frctl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
- u32 rmcs = IXGBE_READ_REG(hw, IXGBE_RMCS);
- flow_rx = !!(frctl & IXGBE_FCTRL_RFCE);
- flow_tx = !!(rmcs & IXGBE_RMCS_TFCE_802_3X);
- }
- break;
- case ixgbe_mac_82599EB:
- case ixgbe_mac_X540: {
- u32 mflcn = IXGBE_READ_REG(hw, IXGBE_MFLCN);
- u32 fccfg = IXGBE_READ_REG(hw, IXGBE_FCCFG);
- flow_rx = !!(mflcn & IXGBE_MFLCN_RFCE);
- flow_tx = !!(fccfg & IXGBE_FCCFG_TFCE_802_3X);
- }
- break;
- default:
- flow_tx = false;
- flow_rx = false;
- break;
- }
+ e_info(drv, "NIC Link is Down\n");
+ netif_carrier_off(netdev);
+}
- e_info(drv, "NIC Link is Up %s, Flow Control: %s\n",
- (link_speed == IXGBE_LINK_SPEED_10GB_FULL ?
- "10 Gbps" :
- (link_speed == IXGBE_LINK_SPEED_1GB_FULL ?
- "1 Gbps" :
- (link_speed == IXGBE_LINK_SPEED_100_FULL ?
- "100 Mbps" :
- "unknown speed"))),
- ((flow_rx && flow_tx) ? "RX/TX" :
- (flow_rx ? "RX" :
- (flow_tx ? "TX" : "None"))));
-
- netif_carrier_on(netdev);
- ixgbe_check_vf_rate_limit(adapter);
- } else {
- /* Force detection of hung controller */
- for (i = 0; i < adapter->num_tx_queues; i++) {
- tx_ring = adapter->tx_ring[i];
- set_check_for_tx_hang(tx_ring);
- }
- }
- } else {
- adapter->link_up = false;
- adapter->link_speed = 0;
- if (netif_carrier_ok(netdev)) {
- e_info(drv, "NIC Link is Down\n");
- netif_carrier_off(netdev);
- }
- }
+/**
+ * ixgbe_watchdog_flush_tx - flush queues on link down
+ * @adapter - pointer to the device adapter structure
+ **/
+static void ixgbe_watchdog_flush_tx(struct ixgbe_adapter *adapter)
+{
+ int i;
+ int some_tx_pending = 0;
- if (!netif_carrier_ok(netdev)) {
+ if (!netif_carrier_ok(adapter->netdev)) {
for (i = 0; i < adapter->num_tx_queues; i++) {
- tx_ring = adapter->tx_ring[i];
+ struct ixgbe_ring *tx_ring = adapter->tx_ring[i];
if (tx_ring->next_to_use != tx_ring->next_to_clean) {
some_tx_pending = 1;
break;
* to get done, so reset controller to flush Tx.
* (Do the reset outside of interrupt context).
*/
- schedule_work(&adapter->reset_task);
+ schedule_work(&adapter->reset_task);
}
}
+}
+
+static void ixgbe_spoof_check(struct ixgbe_adapter *adapter)
+{
+ u32 ssvpc;
+
+ /* Do not perform spoof check for 82598 */
+ if (adapter->hw.mac.type == ixgbe_mac_82598EB)
+ return;
+
+ ssvpc = IXGBE_READ_REG(&adapter->hw, IXGBE_SSVPC);
+
+ /*
+ * ssvpc register is cleared on read, if zero then no
+ * spoofed packets in the last interval.
+ */
+ if (!ssvpc)
+ return;
+
+ e_warn(drv, "%d Spoofed packets detected\n", ssvpc);
+}
+
+/**
+ * ixgbe_watchdog_subtask - check and bring link up
+ * @adapter - pointer to the device adapter structure
+ **/
+static void ixgbe_watchdog_subtask(struct ixgbe_adapter *adapter)
+{
+ /* if interface is down do nothing */
+ if (test_bit(__IXGBE_DOWN, &adapter->state))
+ return;
+
+ ixgbe_watchdog_update_link(adapter);
+
+ if (adapter->link_up)
+ ixgbe_watchdog_link_is_up(adapter);
+ else
+ ixgbe_watchdog_link_is_down(adapter);
ixgbe_spoof_check(adapter);
ixgbe_update_stats(adapter);
- mutex_unlock(&ixgbe_watchdog_lock);
+
+ ixgbe_watchdog_flush_tx(adapter);
}
/**
ixgbe_sfp_detection_subtask(adapter);
ixgbe_sfp_link_config_subtask(adapter);
+ ixgbe_watchdog_subtask(adapter);
+ ixgbe_check_hang_subtask(adapter);
ixgbe_service_event_complete(adapter);
}
setup_timer(&adapter->service_timer, &ixgbe_service_timer,
(unsigned long) adapter);
- init_timer(&adapter->watchdog_timer);
- adapter->watchdog_timer.function = ixgbe_watchdog;
- adapter->watchdog_timer.data = (unsigned long)adapter;
INIT_WORK(&adapter->reset_task, ixgbe_reset_task);
- INIT_WORK(&adapter->watchdog_task, ixgbe_watchdog_task);
INIT_WORK(&adapter->service_task, ixgbe_service_task);
clear_bit(__IXGBE_SERVICE_SCHED, &adapter->state);
set_bit(__IXGBE_DOWN, &adapter->state);
cancel_work_sync(&adapter->service_task);
- /*
- * The timers may be rescheduled, so explicitly disable them
- * from being rescheduled.
- */
- del_timer_sync(&adapter->watchdog_timer);
-
- cancel_work_sync(&adapter->watchdog_task);
if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE ||
adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE)
cancel_work_sync(&adapter->fdir_reinit_task);
projects / linux-2.6-microblaze.git / commitdiff