1 files changed, 64 insertions, 138 deletions

diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
index 70f0b5c01dac..bd4624d14ca0 100644
--- a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
+++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
@@ -17,6 +17,7 @@
 #include "txgbe_type.h"
 #include "txgbe_hw.h"
 #include "txgbe_phy.h"
+#include "txgbe_irq.h"
 #include "txgbe_ethtool.h"
 
 char txgbe_driver_name[] = "txgbe";
@@ -76,138 +77,11 @@ static int txgbe_enumerate_functions(struct wx *wx)
 	return physfns;
 }
 
-/**
- * txgbe_irq_enable - Enable default interrupt generation settings
- * @wx: pointer to private structure
- * @queues: enable irqs for queues
- **/
-static void txgbe_irq_enable(struct wx *wx, bool queues)
-{
-	wr32(wx, WX_PX_MISC_IEN, TXGBE_PX_MISC_IEN_MASK);
-
-	/* unmask interrupt */
-	wx_intr_enable(wx, TXGBE_INTR_MISC(wx));
-	if (queues)
-		wx_intr_enable(wx, TXGBE_INTR_QALL(wx));
-}
-
-/**
- * txgbe_intr - msi/legacy mode Interrupt Handler
- * @irq: interrupt number
- * @data: pointer to a network interface device structure
- **/
-static irqreturn_t txgbe_intr(int __always_unused irq, void *data)
-{
-	struct wx_q_vector *q_vector;
-	struct wx *wx  = data;
-	struct pci_dev *pdev;
-	u32 eicr;
-
-	q_vector = wx->q_vector[0];
-	pdev = wx->pdev;
-
-	eicr = wx_misc_isb(wx, WX_ISB_VEC0);
-	if (!eicr) {
-		/* shared interrupt alert!
-		 * the interrupt that we masked before the ICR read.
-		 */
-		if (netif_running(wx->netdev))
-			txgbe_irq_enable(wx, true);
-		return IRQ_NONE;        /* Not our interrupt */
-	}
-	wx->isb_mem[WX_ISB_VEC0] = 0;
-	if (!(pdev->msi_enabled))
-		wr32(wx, WX_PX_INTA, 1);
-
-	wx->isb_mem[WX_ISB_MISC] = 0;
-	/* would disable interrupts here but it is auto disabled */
-	napi_schedule_irqoff(&q_vector->napi);
-
-	/* re-enable link(maybe) and non-queue interrupts, no flush.
-	 * txgbe_poll will re-enable the queue interrupts
-	 */
-	if (netif_running(wx->netdev))
-		txgbe_irq_enable(wx, false);
-
-	return IRQ_HANDLED;
-}
-
-/**
- * txgbe_request_msix_irqs - Initialize MSI-X interrupts
- * @wx: board private structure
- *
- * Allocate MSI-X vectors and request interrupts from the kernel.
- **/
-static int txgbe_request_msix_irqs(struct wx *wx)
-{
-	struct net_device *netdev = wx->netdev;
-	int vector, err;
-
-	for (vector = 0; vector < wx->num_q_vectors; vector++) {
-		struct wx_q_vector *q_vector = wx->q_vector[vector];
-		struct msix_entry *entry = &wx->msix_entries[vector];
-
-		if (q_vector->tx.ring && q_vector->rx.ring)
-			snprintf(q_vector->name, sizeof(q_vector->name) - 1,
-				 "%s-TxRx-%d", netdev->name, entry->entry);
-		else
-			/* skip this unused q_vector */
-			continue;
-
-		err = request_irq(entry->vector, wx_msix_clean_rings, 0,
-				  q_vector->name, q_vector);
-		if (err) {
-			wx_err(wx, "request_irq failed for MSIX interrupt %s Error: %d\n",
-			       q_vector->name, err);
-			goto free_queue_irqs;
-		}
-	}
-
-	return 0;
-
-free_queue_irqs:
-	while (vector) {
-		vector--;
-		free_irq(wx->msix_entries[vector].vector,
-			 wx->q_vector[vector]);
-	}
-	wx_reset_interrupt_capability(wx);
-	return err;
-}
-
-/**
- * txgbe_request_irq - initialize interrupts
- * @wx: board private structure
- *
- * Attempt to configure interrupts using the best available
- * capabilities of the hardware and kernel.
- **/
-static int txgbe_request_irq(struct wx *wx)
-{
-	struct net_device *netdev = wx->netdev;
-	struct pci_dev *pdev = wx->pdev;
-	int err;
-
-	if (pdev->msix_enabled)
-		err = txgbe_request_msix_irqs(wx);
-	else if (pdev->msi_enabled)
-		err = request_irq(wx->pdev->irq, &txgbe_intr, 0,
-				  netdev->name, wx);
-	else
-		err = request_irq(wx->pdev->irq, &txgbe_intr, IRQF_SHARED,
-				  netdev->name, wx);
-
-	if (err)
-		wx_err(wx, "request_irq failed, Error %d\n", err);
-
-	return err;
-}
-
 static void txgbe_up_complete(struct wx *wx)
 {
 	struct net_device *netdev = wx->netdev;
-	struct txgbe *txgbe;
 
+	txgbe_reinit_gpio_intr(wx);
 	wx_control_hw(wx, true);
 	wx_configure_vectors(wx);
 
@@ -215,8 +89,7 @@ static void txgbe_up_complete(struct wx *wx)
 	smp_mb__before_atomic();
 	wx_napi_enable_all(wx);
 
-	txgbe = netdev_to_txgbe(netdev);
-	phylink_start(txgbe->phylink);
+	phylink_start(wx->phylink);
 
 	/* clear any pending interrupts, may auto mask */
 	rd32(wx, WX_PX_IC(0));
@@ -290,18 +163,22 @@ static void txgbe_disable_device(struct wx *wx)
 	wx_update_stats(wx);
 }
 
-static void txgbe_down(struct wx *wx)
+void txgbe_down(struct wx *wx)
 {
-	struct txgbe *txgbe = netdev_to_txgbe(wx->netdev);
-
 	txgbe_disable_device(wx);
 	txgbe_reset(wx);
-	phylink_stop(txgbe->phylink);
+	phylink_stop(wx->phylink);
 
 	wx_clean_all_tx_rings(wx);
 	wx_clean_all_rx_rings(wx);
 }
 
+void txgbe_up(struct wx *wx)
+{
+	wx_configure(wx);
+	txgbe_up_complete(wx);
+}
+
 /**
  *  txgbe_init_type_code - Initialize the shared code
  *  @wx: pointer to hardware structure
@@ -364,10 +241,8 @@ static int txgbe_sw_init(struct wx *wx)
 
 	/* PCI config space info */
 	err = wx_sw_init(wx);
-	if (err < 0) {
-		wx_err(wx, "read of internal subsystem device id failed\n");
+	if (err < 0)
 		return err;
-	}
 
 	txgbe_init_type_code(wx);
 
@@ -378,6 +253,10 @@ static int txgbe_sw_init(struct wx *wx)
 		wx_err(wx, "Do not support MSI-X\n");
 	wx->mac.max_msix_vectors = msix_count;
 
+	wx->ring_feature[RING_F_RSS].limit = min_t(int, TXGBE_MAX_RSS_INDICES,
+						   num_online_cpus());
+	wx->rss_enabled = true;
+
 	/* enable itr by default in dynamic mode */
 	wx->rx_itr_setting = 1;
 	wx->tx_itr_setting = 1;
@@ -504,6 +383,44 @@ static void txgbe_shutdown(struct pci_dev *pdev)
 	}
 }
 
+/**
+ * txgbe_setup_tc - routine to configure net_device for multiple traffic
+ * classes.
+ *
+ * @dev: net device to configure
+ * @tc: number of traffic classes to enable
+ */
+int txgbe_setup_tc(struct net_device *dev, u8 tc)
+{
+	struct wx *wx = netdev_priv(dev);
+	struct txgbe *txgbe = wx->priv;
+
+	/* Hardware has to reinitialize queues and interrupts to
+	 * match packet buffer alignment. Unfortunately, the
+	 * hardware is not flexible enough to do this dynamically.
+	 */
+	if (netif_running(dev))
+		txgbe_close(dev);
+	else
+		txgbe_reset(wx);
+
+	txgbe_free_misc_irq(txgbe);
+	wx_clear_interrupt_scheme(wx);
+
+	if (tc)
+		netdev_set_num_tc(dev, tc);
+	else
+		netdev_reset_tc(dev);
+
+	wx_init_interrupt_scheme(wx);
+	txgbe_setup_misc_irq(txgbe);
+
+	if (netif_running(dev))
+		txgbe_open(dev);
+
+	return 0;
+}
+
 static const struct net_device_ops txgbe_netdev_ops = {
 	.ndo_open               = txgbe_open,
 	.ndo_stop               = txgbe_close,
@@ -640,6 +557,7 @@ static int txgbe_probe(struct pci_dev *pdev,
 
 	netdev->priv_flags |= IFF_UNICAST_FLT;
 	netdev->priv_flags |= IFF_SUPP_NOFCS;
+	netdev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
 
 	netdev->min_mtu = ETH_MIN_MTU;
 	netdev->max_mtu = WX_MAX_JUMBO_FRAME_SIZE -
@@ -711,10 +629,14 @@ static int txgbe_probe(struct pci_dev *pdev,
 	txgbe->wx = wx;
 	wx->priv = txgbe;
 
-	err = txgbe_init_phy(txgbe);
+	err = txgbe_setup_misc_irq(txgbe);
 	if (err)
 		goto err_release_hw;
 
+	err = txgbe_init_phy(txgbe);
+	if (err)
+		goto err_free_misc_irq;
+
 	err = register_netdev(netdev);
 	if (err)
 		goto err_remove_phy;
@@ -741,6 +663,8 @@ static int txgbe_probe(struct pci_dev *pdev,
 
 err_remove_phy:
 	txgbe_remove_phy(txgbe);
+err_free_misc_irq:
+	txgbe_free_misc_irq(txgbe);
 err_release_hw:
 	wx_clear_interrupt_scheme(wx);
 	wx_control_hw(wx, false);
@@ -773,10 +697,12 @@ static void txgbe_remove(struct pci_dev *pdev)
 	unregister_netdev(netdev);
 
 	txgbe_remove_phy(txgbe);
+	txgbe_free_misc_irq(txgbe);
 
 	pci_release_selected_regions(pdev,
 				     pci_select_bars(pdev, IORESOURCE_MEM));
 
+	kfree(wx->rss_key);
 	kfree(wx->mac_table);
 	wx_clear_interrupt_scheme(wx);