7 files changed, 71 insertions, 98 deletions

diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index 5c0b457c7868..0f9ee1348552 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -2728,7 +2728,7 @@ static void __devexit e100_remove(struct pci_dev *pdev)
 #define E100_82552_SMARTSPEED   0x14   /* SmartSpeed Ctrl register */
 #define E100_82552_REV_ANEG     0x0200 /* Reverse auto-negotiation */
 #define E100_82552_ANEG_NOW     0x0400 /* Auto-negotiate now */
-static int e100_suspend(struct pci_dev *pdev, pm_message_t state)
+static void __e100_shutdown(struct pci_dev *pdev, bool *enable_wake)
 {
         struct net_device *netdev = pci_get_drvdata(pdev);
         struct nic *nic = netdev_priv(netdev);
@@ -2749,19 +2749,32 @@ static int e100_suspend(struct pci_dev *pdev, pm_message_t state)
                                    E100_82552_SMARTSPEED, smartspeed |
                                    E100_82552_REV_ANEG | E100_82552_ANEG_NOW);
                 }
-                if (pci_enable_wake(pdev, PCI_D3cold, true))
-                        pci_enable_wake(pdev, PCI_D3hot, true);
+                *enable_wake = true;
         } else {
-                pci_enable_wake(pdev, PCI_D3hot, false);
+                *enable_wake = false;
         }
 
         pci_disable_device(pdev);
-        pci_set_power_state(pdev, PCI_D3hot);
+}
 
-        return 0;
+static int __e100_power_off(struct pci_dev *pdev, bool wake)
+{
+        if (wake) {
+                return pci_prepare_to_sleep(pdev);
+        } else {
+                pci_wake_from_d3(pdev, false);
+                return pci_set_power_state(pdev, PCI_D3hot);
+        }
 }
 
 #ifdef CONFIG_PM
+static int e100_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+        bool wake;
+        __e100_shutdown(pdev, &wake);
+        return __e100_power_off(pdev, wake);
+}
+
 static int e100_resume(struct pci_dev *pdev)
 {
         struct net_device *netdev = pci_get_drvdata(pdev);
@@ -2792,7 +2805,10 @@ static int e100_resume(struct pci_dev *pdev)
 
 static void e100_shutdown(struct pci_dev *pdev)
 {
-        e100_suspend(pdev, PMSG_SUSPEND);
+        bool wake;
+        __e100_shutdown(pdev, &wake);
+        if (system_state == SYSTEM_POWER_OFF)
+                __e100_power_off(pdev, wake);
 }
 
 /* ------------------ PCI Error Recovery infrastructure  -------------- */
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
index 11d5db16ed9c..f9a846b1b92f 100644
--- a/drivers/net/forcedeth.c
+++ b/drivers/net/forcedeth.c
@@ -1880,6 +1880,7 @@ static void nv_init_tx(struct net_device *dev)
         np->tx_pkts_in_progress = 0;
         np->tx_change_owner = NULL;
         np->tx_end_flip = NULL;
+        np->tx_stop = 0;
 
         for (i = 0; i < np->tx_ring_size; i++) {
                 if (!nv_optimized(np)) {
@@ -2530,6 +2531,8 @@ static void nv_tx_timeout(struct net_device *dev)
         struct fe_priv *np = netdev_priv(dev);
         u8 __iomem *base = get_hwbase(dev);
         u32 status;
+        union ring_type put_tx;
+        int saved_tx_limit;
 
         if (np->msi_flags & NV_MSI_X_ENABLED)
                 status = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
@@ -2589,24 +2592,32 @@ static void nv_tx_timeout(struct net_device *dev)
         /* 1) stop tx engine */
         nv_stop_tx(dev);
 
-        /* 2) check that the packets were not sent already: */
+        /* 2) complete any outstanding tx and do not give HW any limited tx pkts */
+        saved_tx_limit = np->tx_limit;
+        np->tx_limit = 0; /* prevent giving HW any limited pkts */
+        np->tx_stop = 0;  /* prevent waking tx queue */
         if (!nv_optimized(np))
                 nv_tx_done(dev, np->tx_ring_size);
         else
                 nv_tx_done_optimized(dev, np->tx_ring_size);
 
-        /* 3) if there are dead entries: clear everything */
-        if (np->get_tx_ctx != np->put_tx_ctx) {
-                printk(KERN_DEBUG "%s: tx_timeout: dead entries!\n", dev->name);
-                nv_drain_tx(dev);
-                nv_init_tx(dev);
-                setup_hw_rings(dev, NV_SETUP_TX_RING);
-        }
+        /* save current HW postion */
+        if (np->tx_change_owner)
+                put_tx.ex = np->tx_change_owner->first_tx_desc;
+        else
+                put_tx = np->put_tx;
 
-        netif_wake_queue(dev);
+        /* 3) clear all tx state */
+        nv_drain_tx(dev);
+        nv_init_tx(dev);
+
+        /* 4) restore state to current HW position */
+        np->get_tx = np->put_tx = put_tx;
+        np->tx_limit = saved_tx_limit;
 
-        /* 4) restart tx engine */
+        /* 5) restart tx engine */
         nv_start_tx(dev);
+        netif_wake_queue(dev);
         spin_unlock_irq(&np->lock);
 }
 
diff --git a/drivers/net/ixgbe/ixgbe_common.c b/drivers/net/ixgbe/ixgbe_common.c
index 5567519676d5..186a65069b33 100644
--- a/drivers/net/ixgbe/ixgbe_common.c
+++ b/drivers/net/ixgbe/ixgbe_common.c
@@ -50,7 +50,6 @@ static u16 ixgbe_calc_eeprom_checksum(struct ixgbe_hw *hw);
 static void ixgbe_enable_rar(struct ixgbe_hw *hw, u32 index);
 static void ixgbe_disable_rar(struct ixgbe_hw *hw, u32 index);
 static s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr);
-static void ixgbe_add_mc_addr(struct ixgbe_hw *hw, u8 *mc_addr);
 static void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq);
 
 /**
@@ -1377,8 +1376,7 @@ s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw, u8 *addr_list,
          * Clear accounting of old secondary address list,
          * don't count RAR[0]
          */
-        uc_addr_in_use = hw->addr_ctrl.rar_used_count -
-                         hw->addr_ctrl.mc_addr_in_rar_count - 1;
+        uc_addr_in_use = hw->addr_ctrl.rar_used_count - 1;
         hw->addr_ctrl.rar_used_count -= uc_addr_in_use;
         hw->addr_ctrl.overflow_promisc = 0;
 
@@ -1493,40 +1491,6 @@ static void ixgbe_set_mta(struct ixgbe_hw *hw, u8 *mc_addr)
 }
 
 /**
- *  ixgbe_add_mc_addr - Adds a multicast address.
- *  @hw: pointer to hardware structure
- *  @mc_addr: new multicast address
- *
- *  Adds it to unused receive address register or to the multicast table.
- **/
-static void ixgbe_add_mc_addr(struct ixgbe_hw *hw, u8 *mc_addr)
-{
-        u32 rar_entries = hw->mac.num_rar_entries;
-        u32 rar;
-
-        hw_dbg(hw, " MC Addr =%.2X %.2X %.2X %.2X %.2X %.2X\n",
-               mc_addr[0], mc_addr[1], mc_addr[2],
-               mc_addr[3], mc_addr[4], mc_addr[5]);
-
-        /*
-         * Place this multicast address in the RAR if there is room,
-         * else put it in the MTA
-         */
-        if (hw->addr_ctrl.rar_used_count < rar_entries) {
-                /* use RAR from the end up for multicast */
-                rar = rar_entries - hw->addr_ctrl.mc_addr_in_rar_count - 1;
-                hw->mac.ops.set_rar(hw, rar, mc_addr, 0, IXGBE_RAH_AV);
-                hw_dbg(hw, "Added a multicast address to RAR[%d]\n", rar);
-                hw->addr_ctrl.rar_used_count++;
-                hw->addr_ctrl.mc_addr_in_rar_count++;
-        } else {
-                ixgbe_set_mta(hw, mc_addr);
-        }
-
-        hw_dbg(hw, "ixgbe_add_mc_addr Complete\n");
-}
-
-/**
  *  ixgbe_update_mc_addr_list_generic - Updates MAC list of multicast addresses
  *  @hw: pointer to hardware structure
  *  @mc_addr_list: the list of new multicast addresses
@@ -1542,7 +1506,6 @@ s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw, u8 *mc_addr_list,
                                       u32 mc_addr_count, ixgbe_mc_addr_itr next)
 {
         u32 i;
-        u32 rar_entries = hw->mac.num_rar_entries;
         u32 vmdq;
 
         /*
@@ -1550,18 +1513,8 @@ s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw, u8 *mc_addr_list,
          * use.
          */
         hw->addr_ctrl.num_mc_addrs = mc_addr_count;
-        hw->addr_ctrl.rar_used_count -= hw->addr_ctrl.mc_addr_in_rar_count;
-        hw->addr_ctrl.mc_addr_in_rar_count = 0;
         hw->addr_ctrl.mta_in_use = 0;
 
-        /* Zero out the other receive addresses. */
-        hw_dbg(hw, "Clearing RAR[%d-%d]\n", hw->addr_ctrl.rar_used_count,
-                  rar_entries - 1);
-        for (i = hw->addr_ctrl.rar_used_count; i < rar_entries; i++) {
-                IXGBE_WRITE_REG(hw, IXGBE_RAL(i), 0);
-                IXGBE_WRITE_REG(hw, IXGBE_RAH(i), 0);
-        }
-
         /* Clear the MTA */
         hw_dbg(hw, " Clearing MTA\n");
         for (i = 0; i < hw->mac.mcft_size; i++)
@@ -1570,7 +1523,7 @@ s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw, u8 *mc_addr_list,
         /* Add the new addresses */
         for (i = 0; i < mc_addr_count; i++) {
                 hw_dbg(hw, " Adding the multicast addresses:\n");
-                ixgbe_add_mc_addr(hw, next(hw, &mc_addr_list, &vmdq));
+                ixgbe_set_mta(hw, next(hw, &mc_addr_list, &vmdq));
         }
 
         /* Enable mta */
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 01884256f4c9..07e778d3e5d2 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -3646,6 +3646,8 @@ static int ixgbe_resume(struct pci_dev *pdev)
 
         ixgbe_reset(adapter);
 
+        IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0);
+
         if (netif_running(netdev)) {
                 err = ixgbe_open(adapter->netdev);
                 if (err)
@@ -4575,7 +4577,6 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
         const struct ixgbe_info *ii = ixgbe_info_tbl[ent->driver_data];
         static int cards_found;
         int i, err, pci_using_dac;
-        u16 pm_value = 0;
         u32 part_num, eec;
 
         err = pci_enable_device(pdev);
@@ -4763,11 +4764,8 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
 
         switch (pdev->device) {
         case IXGBE_DEV_ID_82599_KX4:
-#define IXGBE_PCIE_PMCSR 0x44
-                adapter->wol = IXGBE_WUFC_MAG;
-                pci_read_config_word(pdev, IXGBE_PCIE_PMCSR, &pm_value);
-                pci_write_config_word(pdev, IXGBE_PCIE_PMCSR,
-                                      (pm_value | (1 << 8)));
+                adapter->wol = (IXGBE_WUFC_MAG | IXGBE_WUFC_EX |
+                                IXGBE_WUFC_MC | IXGBE_WUFC_BC);
                 break;
         default:
                 adapter->wol = 0;
diff --git a/drivers/net/mlx4/en_netdev.c b/drivers/net/mlx4/en_netdev.c
index 438678ab2a10..7bcc49de1637 100644
--- a/drivers/net/mlx4/en_netdev.c
+++ b/drivers/net/mlx4/en_netdev.c
@@ -583,7 +583,7 @@ int mlx4_en_start_port(struct net_device *dev)
                 err = mlx4_en_activate_cq(priv, cq);
                 if (err) {
                         mlx4_err(mdev, "Failed activating Rx CQ\n");
-                        goto rx_err;
+                        goto cq_err;
                 }
                 for (j = 0; j < cq->size; j++)
                         cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK;
diff --git a/drivers/net/mlx4/en_rx.c b/drivers/net/mlx4/en_rx.c
index 0cbb78ca7b29..7942c4d3cd88 100644
--- a/drivers/net/mlx4/en_rx.c
+++ b/drivers/net/mlx4/en_rx.c
@@ -610,6 +610,10 @@ static struct sk_buff *mlx4_en_rx_skb(struct mlx4_en_priv *priv,
                 used_frags = mlx4_en_complete_rx_desc(priv, rx_desc, skb_frags,
                                                       skb_shinfo(skb)->frags,
                                                       page_alloc, length);
+                if (unlikely(!used_frags)) {
+                        kfree_skb(skb);
+                        return NULL;
+                }
                 skb_shinfo(skb)->nr_frags = used_frags;
 
                 /* Copy headers into the skb linear buffer */
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index 015db1cece72..8e56fcf0a0e3 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -210,14 +210,11 @@ rx_drop:
 
 static struct net_device_stats *veth_get_stats(struct net_device *dev)
 {
-        struct veth_priv *priv;
-        struct net_device_stats *dev_stats;
-        int cpu;
+        struct veth_priv *priv = netdev_priv(dev);
+        struct net_device_stats *dev_stats = &dev->stats;
+        unsigned int cpu;
         struct veth_net_stats *stats;
 
-        priv = netdev_priv(dev);
-        dev_stats = &dev->stats;
-
         dev_stats->rx_packets = 0;
         dev_stats->tx_packets = 0;
         dev_stats->rx_bytes = 0;
@@ -225,16 +222,17 @@ static struct net_device_stats *veth_get_stats(struct net_device *dev)
         dev_stats->tx_dropped = 0;
         dev_stats->rx_dropped = 0;
 
-        for_each_online_cpu(cpu) {
-                stats = per_cpu_ptr(priv->stats, cpu);
+        if (priv->stats)
+                for_each_online_cpu(cpu) {
+                        stats = per_cpu_ptr(priv->stats, cpu);
 
-                dev_stats->rx_packets += stats->rx_packets;
-                dev_stats->tx_packets += stats->tx_packets;
-                dev_stats->rx_bytes += stats->rx_bytes;
-                dev_stats->tx_bytes += stats->tx_bytes;
-                dev_stats->tx_dropped += stats->tx_dropped;
-                dev_stats->rx_dropped += stats->rx_dropped;
-        }
+                        dev_stats->rx_packets += stats->rx_packets;
+                        dev_stats->tx_packets += stats->tx_packets;
+                        dev_stats->rx_bytes += stats->rx_bytes;
+                        dev_stats->tx_bytes += stats->tx_bytes;
+                        dev_stats->tx_dropped += stats->tx_dropped;
+                        dev_stats->rx_dropped += stats->rx_dropped;
+                }
 
         return dev_stats;
 }
@@ -261,6 +259,8 @@ static int veth_close(struct net_device *dev)
         netif_carrier_off(dev);
         netif_carrier_off(priv->peer);
 
+        free_percpu(priv->stats);
+        priv->stats = NULL;
         return 0;
 }
 
@@ -291,15 +291,6 @@ static int veth_dev_init(struct net_device *dev)
         return 0;
 }
 
-static void veth_dev_free(struct net_device *dev)
-{
-        struct veth_priv *priv;
-
-        priv = netdev_priv(dev);
-        free_percpu(priv->stats);
-        free_netdev(dev);
-}
-
 static const struct net_device_ops veth_netdev_ops = {
         .ndo_init            = veth_dev_init,
         .ndo_open            = veth_open,
@@ -317,7 +308,7 @@ static void veth_setup(struct net_device *dev)
         dev->netdev_ops = &veth_netdev_ops;
         dev->ethtool_ops = &veth_ethtool_ops;
         dev->features |= NETIF_F_LLTX;
-        dev->destructor = veth_dev_free;
+        dev->destructor = free_netdev;
 }
 
 /*