X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=drivers%2Fnet%2Fixgbe%2Fixgbe_main.c;h=fd27513a92f6134f2bd3d04094755e165410d3c9;hb=b453368dfd74ba5a49bfaa853251212fa306e70d;hp=335119a5687abf1788ee836e80fb73b9e6fb3519;hpb=af4330631cd48987755f1a8d324dc318f60cf16b;p=karo-tx-linux.git

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 335119a5687a..fd27513a92f6 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -1433,27 +1433,6 @@ static void ixgbe_set_itr(struct ixgbe_adapter *adapter)
 	return;
 }
 
-/**
- * ixgbe_irq_disable - Mask off interrupt generation on the NIC
- * @adapter: board private structure
- **/
-static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter)
-{
-	IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, ~0);
-	if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
-		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0);
-		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(2), ~0);
-	}
-	IXGBE_WRITE_FLUSH(&adapter->hw);
-	if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
-		int i;
-		for (i = 0; i < adapter->num_msix_vectors; i++)
-			synchronize_irq(adapter->msix_entries[i].vector);
-	} else {
-		synchronize_irq(adapter->pdev->irq);
-	}
-}
-
 /**
  * ixgbe_irq_enable - Enable default interrupt generation settings
  * @adapter: board private structure
@@ -1596,6 +1575,39 @@ static void ixgbe_free_irq(struct ixgbe_adapter *adapter)
 	}
 }
 
+/**
+ * ixgbe_irq_disable - Mask off interrupt generation on the NIC
+ * @adapter: board private structure
+ **/
+static inline void ixgbe_irq_disable(struct ixgbe_adapter *adapter)
+{
+	IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC, ~0);
+	if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
+		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(1), ~0);
+		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMC_EX(2), ~0);
+	}
+	IXGBE_WRITE_FLUSH(&adapter->hw);
+	if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
+		int i;
+		for (i = 0; i < adapter->num_msix_vectors; i++)
+			synchronize_irq(adapter->msix_entries[i].vector);
+	} else {
+		synchronize_irq(adapter->pdev->irq);
+	}
+}
+
+static inline void ixgbe_irq_enable_queues(struct ixgbe_adapter *adapter)
+{
+	u32 mask = IXGBE_EIMS_RTX_QUEUE;
+	IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS, mask);
+	if (adapter->hw.mac.type == ixgbe_mac_82599EB) {
+		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS_EX(1), mask << 16);
+		IXGBE_WRITE_REG(&adapter->hw, IXGBE_EIMS_EX(2),
+		                (mask << 16 | mask));
+	}
+	/* skip the flush */
+}
+
 /**
  * ixgbe_configure_msi_and_legacy - Initialize PIN (INTA...) and MSI interrupts
  *
@@ -2624,7 +2636,7 @@ static int ixgbe_poll(struct napi_struct *napi, int budget)
 		if (adapter->itr_setting & 1)
 			ixgbe_set_itr(adapter);
 		if (!test_bit(__IXGBE_DOWN, &adapter->state))
-			ixgbe_irq_enable(adapter);
+			ixgbe_irq_enable_queues(adapter);
 	}
 	return work_done;
 }
@@ -3806,17 +3818,54 @@ static void ixgbe_watchdog(unsigned long data)
 	/* Do the watchdog outside of interrupt context due to the lovely
 	 * delays that some of the newer hardware requires */
 	if (!test_bit(__IXGBE_DOWN, &adapter->state)) {
+		u64 eics = 0;
+		int i;
+
+		for (i = 0; i < adapter->num_msix_vectors - NON_Q_VECTORS; i++)
+			eics |= (1 << i);
+
 		/* Cause software interrupt to ensure rx rings are cleaned */
-		if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
-			u32 eics =
-			 (1 << (adapter->num_msix_vectors - NON_Q_VECTORS)) - 1;
-			IXGBE_WRITE_REG(hw, IXGBE_EICS, eics);
-		} else {
-			/* For legacy and MSI interrupts don't set any bits that
-			 * are enabled for EIAM, because this operation would
-			 * set *both* EIMS and EICS for any bit in EIAM */
-			IXGBE_WRITE_REG(hw, IXGBE_EICS,
-                                    (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER));
+		switch (hw->mac.type) {
+		case ixgbe_mac_82598EB:
+			if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
+				IXGBE_WRITE_REG(hw, IXGBE_EICS, (u32)eics);
+			} else {
+				/*
+				 * for legacy and MSI interrupts don't set any
+				 * bits that are enabled for EIAM, because this
+				 * operation would set *both* EIMS and EICS for
+				 * any bit in EIAM
+				 */
+				IXGBE_WRITE_REG(hw, IXGBE_EICS,
+				     (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER));
+			}
+			break;
+		case ixgbe_mac_82599EB:
+			if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) {
+				/*
+				 * EICS(0..15) first 0-15 q vectors
+				 * EICS[1] (16..31) q vectors 16-31
+				 * EICS[2] (0..31) q vectors 32-63
+				 */
+				IXGBE_WRITE_REG(hw, IXGBE_EICS,
+				                (u32)(eics & 0xFFFF));
+				IXGBE_WRITE_REG(hw, IXGBE_EICS_EX(1),
+				                (u32)(eics & 0xFFFF0000));
+				IXGBE_WRITE_REG(hw, IXGBE_EICS_EX(2),
+				                (u32)(eics >> 32));
+			} else {
+				/*
+				 * for legacy and MSI interrupts don't set any
+				 * bits that are enabled for EIAM, because this
+				 * operation would set *both* EIMS and EICS for
+				 * any bit in EIAM
+				 */
+				IXGBE_WRITE_REG(hw, IXGBE_EICS,
+				     (IXGBE_EICS_TCP_TIMER | IXGBE_EICS_OTHER));
+			}
+			break;
+		default:
+			break;
 		}
 		/* Reset the timer */
 		mod_timer(&adapter->watchdog_timer,
@@ -4272,6 +4321,16 @@ static int ixgbe_maybe_stop_tx(struct net_device *netdev,
 	return __ixgbe_maybe_stop_tx(netdev, tx_ring, size);
 }
 
+static u16 ixgbe_select_queue(struct net_device *dev, struct sk_buff *skb)
+{
+	struct ixgbe_adapter *adapter = netdev_priv(dev);
+
+	if (adapter->flags & IXGBE_FLAG_DCB_ENABLED)
+		return 0;  /* All traffic should default to class 0 */
+
+	return skb_tx_hash(dev, skb);
+}
+
 static int ixgbe_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
@@ -4401,6 +4460,7 @@ static const struct net_device_ops ixgbe_netdev_ops = {
 	.ndo_open 		= ixgbe_open,
 	.ndo_stop		= ixgbe_close,
 	.ndo_start_xmit		= ixgbe_xmit_frame,
+	.ndo_select_queue	= ixgbe_select_queue,
 	.ndo_get_stats		= ixgbe_get_stats,
 	.ndo_set_rx_mode        = ixgbe_set_rx_mode,
 	.ndo_set_multicast_list	= ixgbe_set_rx_mode,
@@ -4927,8 +4987,20 @@ static int ixgbe_notify_dca(struct notifier_block *nb, unsigned long event,
 
 	return ret_val ? NOTIFY_BAD : NOTIFY_DONE;
 }
+
 #endif /* CONFIG_IXGBE_DCA */
+#ifdef DEBUG
+/**
+ * ixgbe_get_hw_dev_name - return device name string
+ * used by hardware layer to print debugging information
+ **/
+char *ixgbe_get_hw_dev_name(struct ixgbe_hw *hw)
+{
+	struct ixgbe_adapter *adapter = hw->back;
+	return adapter->netdev->name;
+}
 
+#endif
 module_exit(ixgbe_exit_module);
 
 /* ixgbe_main.c */