1 files changed, 41 insertions, 53 deletions

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index ea117fc3d5e..a0d75b0f379 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -1130,7 +1130,7 @@ static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp
         u16 port = sky2->port;
 
         netif_tx_lock_bh(dev);
-        netif_poll_disable(sky2->hw->dev[0]);
+        napi_disable(&hw->napi);
 
         sky2->vlgrp = grp;
         if (grp) {
@@ -1145,7 +1145,7 @@ static void sky2_vlan_rx_register(struct net_device *dev, struct vlan_group *grp
                              TX_VLAN_TAG_OFF);
         }
 
-        netif_poll_enable(sky2->hw->dev[0]);
+        napi_enable(&hw->napi);
         netif_tx_unlock_bh(dev);
 }
 #endif
@@ -1385,9 +1385,13 @@ static int sky2_up(struct net_device *dev)
         sky2_prefetch_init(hw, txqaddr[port], sky2->tx_le_map,
                            TX_RING_SIZE - 1);
 
+        napi_enable(&hw->napi);
+
         err = sky2_rx_start(sky2);
-        if (err)
+        if (err) {
+                napi_disable(&hw->napi);
                 goto err_out;
+        }
 
         /* Enable interrupts from phy/mac for port */
         imask = sky2_read32(hw, B0_IMSK);
@@ -1676,6 +1680,8 @@ static int sky2_down(struct net_device *dev)
         /* Stop more packets from being queued */
         netif_stop_queue(dev);
 
+        napi_disable(&hw->napi);
+
         /* Disable port IRQ */
         imask = sky2_read32(hw, B0_IMSK);
         imask &= ~portirq_msk[port];
@@ -2016,7 +2022,7 @@ static int sky2_change_mtu(struct net_device *dev, int new_mtu)
 
         dev->trans_start = jiffies;     /* prevent tx timeout */
         netif_stop_queue(dev);
-        netif_poll_disable(hw->dev[0]);
+        napi_disable(&hw->napi);
 
         synchronize_irq(hw->pdev->irq);
 
@@ -2043,12 +2049,16 @@ static int sky2_change_mtu(struct net_device *dev, int new_mtu)
         err = sky2_rx_start(sky2);
         sky2_write32(hw, B0_IMSK, imask);
 
+        /* Unconditionally re-enable NAPI because even if we
+         * call dev_close() that will do a napi_disable().
+         */
+        napi_enable(&hw->napi);
+
         if (err)
                 dev_close(dev);
         else {
                 gma_write16(hw, port, GM_GP_CTRL, ctl);
 
-                netif_poll_enable(hw->dev[0]);
                 netif_wake_queue(dev);
         }
 
@@ -2544,18 +2554,15 @@ static int sky2_rx_hung(struct net_device *dev)
 static void sky2_watchdog(unsigned long arg)
 {
         struct sky2_hw *hw = (struct sky2_hw *) arg;
-        struct net_device *dev;
 
         /* Check for lost IRQ once a second */
         if (sky2_read32(hw, B0_ISRC)) {
-                dev = hw->dev[0];
-                if (__netif_rx_schedule_prep(dev))
-                        __netif_rx_schedule(dev);
+                napi_schedule(&hw->napi);
         } else {
                 int i, active = 0;
 
                 for (i = 0; i < hw->ports; i++) {
-                        dev = hw->dev[i];
+                        struct net_device *dev = hw->dev[i];
                         if (!netif_running(dev))
                                 continue;
                         ++active;
@@ -2605,11 +2612,11 @@ static void sky2_err_intr(struct sky2_hw *hw, u32 status)
                 sky2_le_error(hw, 1, Q_XA2, TX_RING_SIZE);
 }
 
-static int sky2_poll(struct net_device *dev0, int *budget)
+static int sky2_poll(struct napi_struct *napi, int work_limit)
 {
-        struct sky2_hw *hw = ((struct sky2_port *) netdev_priv(dev0))->hw;
-        int work_done;
+        struct sky2_hw *hw = container_of(napi, struct sky2_hw, napi);
         u32 status = sky2_read32(hw, B0_Y2_SP_EISR);
+        int work_done;
 
         if (unlikely(status & Y2_IS_ERROR))
                 sky2_err_intr(hw, status);
@@ -2620,31 +2627,27 @@ static int sky2_poll(struct net_device *dev0, int *budget)
         if (status & Y2_IS_IRQ_PHY2)
                 sky2_phy_intr(hw, 1);
 
-        work_done = sky2_status_intr(hw, min(dev0->quota, *budget));
-        *budget -= work_done;
-        dev0->quota -= work_done;
+        work_done = sky2_status_intr(hw, work_limit);
 
         /* More work? */
-        if (hw->st_idx != sky2_read16(hw, STAT_PUT_IDX))
-                return 1;
+        if (hw->st_idx == sky2_read16(hw, STAT_PUT_IDX)) {
+                /* Bug/Errata workaround?
+                 * Need to kick the TX irq moderation timer.
+                 */
+                if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_START) {
+                        sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP);
+                        sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
+                }
 
-        /* Bug/Errata workaround?
-         * Need to kick the TX irq moderation timer.
-         */
-        if (sky2_read8(hw, STAT_TX_TIMER_CTRL) == TIM_START) {
-                sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_STOP);
-                sky2_write8(hw, STAT_TX_TIMER_CTRL, TIM_START);
+                napi_complete(napi);
+                sky2_read32(hw, B0_Y2_SP_LISR);
         }
-        netif_rx_complete(dev0);
-
-        sky2_read32(hw, B0_Y2_SP_LISR);
-        return 0;
+        return work_done;
 }
 
 static irqreturn_t sky2_intr(int irq, void *dev_id)
 {
         struct sky2_hw *hw = dev_id;
-        struct net_device *dev0 = hw->dev[0];
         u32 status;
 
         /* Reading this mask interrupts as side effect */
@@ -2653,8 +2656,8 @@ static irqreturn_t sky2_intr(int irq, void *dev_id)
                 return IRQ_NONE;
 
         prefetch(&hw->st_le[hw->st_idx]);
-        if (likely(__netif_rx_schedule_prep(dev0)))
-                __netif_rx_schedule(dev0);
+
+        napi_schedule(&hw->napi);
 
         return IRQ_HANDLED;
 }
@@ -2663,10 +2666,8 @@ static irqreturn_t sky2_intr(int irq, void *dev_id)
 static void sky2_netpoll(struct net_device *dev)
 {
         struct sky2_port *sky2 = netdev_priv(dev);
-        struct net_device *dev0 = sky2->hw->dev[0];
 
-        if (netif_running(dev) && __netif_rx_schedule_prep(dev0))
-                __netif_rx_schedule(dev0);
+        napi_schedule(&sky2->hw->napi);
 }
 #endif
 
@@ -2914,8 +2915,6 @@ static void sky2_restart(struct work_struct *work)
         sky2_write32(hw, B0_IMSK, 0);
         sky2_read32(hw, B0_IMSK);
 
-        netif_poll_disable(hw->dev[0]);
-
         for (i = 0; i < hw->ports; i++) {
                 dev = hw->dev[i];
                 if (netif_running(dev))
@@ -2924,7 +2923,6 @@ static void sky2_restart(struct work_struct *work)
 
         sky2_reset(hw);
         sky2_write32(hw, B0_IMSK, Y2_IS_BASE);
-        netif_poll_enable(hw->dev[0]);
 
         for (i = 0; i < hw->ports; i++) {
                 dev = hw->dev[i];
@@ -3735,7 +3733,7 @@ static int sky2_debug_show(struct seq_file *seq, void *v)
 {
         struct net_device *dev = seq->private;
         const struct sky2_port *sky2 = netdev_priv(dev);
-        const struct sky2_hw *hw = sky2->hw;
+        struct sky2_hw *hw = sky2->hw;
         unsigned port = sky2->port;
         unsigned idx, last;
         int sop;
@@ -3748,7 +3746,7 @@ static int sky2_debug_show(struct seq_file *seq, void *v)
                    sky2_read32(hw, B0_IMSK),
                    sky2_read32(hw, B0_Y2_SP_ICR));
 
-        netif_poll_disable(hw->dev[0]);
+        napi_disable(&hw->napi);
         last = sky2_read16(hw, STAT_PUT_IDX);
 
         if (hw->st_idx == last)
@@ -3818,7 +3816,7 @@ static int sky2_debug_show(struct seq_file *seq, void *v)
                    last = sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_PUT_IDX)),
                    sky2_read16(hw, Y2_QADDR(rxqaddr[port], PREF_UNIT_LAST_IDX)));
 
-        netif_poll_enable(hw->dev[0]);
+        napi_enable(&hw->napi);
         return 0;
 }
 
@@ -3943,15 +3941,8 @@ static __devinit struct net_device *sky2_init_netdev(struct sky2_hw *hw,
         SET_ETHTOOL_OPS(dev, &sky2_ethtool_ops);
         dev->tx_timeout = sky2_tx_timeout;
         dev->watchdog_timeo = TX_WATCHDOG;
-        if (port == 0)
-                dev->poll = sky2_poll;
-        dev->weight = NAPI_WEIGHT;
 #ifdef CONFIG_NET_POLL_CONTROLLER
-        /* Network console (only works on port 0)
-         * because netpoll makes assumptions about NAPI
-         */
-        if (port == 0)
-                dev->poll_controller = sky2_netpoll;
+        dev->poll_controller = sky2_netpoll;
 #endif
 
         sky2 = netdev_priv(dev);
@@ -4166,6 +4157,7 @@ static int __devinit sky2_probe(struct pci_dev *pdev,
                 err = -ENOMEM;
                 goto err_out_free_pci;
         }
+        netif_napi_add(dev, &hw->napi, sky2_poll, NAPI_WEIGHT);
 
         if (!disable_msi && pci_enable_msi(pdev) == 0) {
                 err = sky2_test_msi(hw);
@@ -4288,8 +4280,6 @@ static int sky2_suspend(struct pci_dev *pdev, pm_message_t state)
         if (!hw)
                 return 0;
 
-        netif_poll_disable(hw->dev[0]);
-
         for (i = 0; i < hw->ports; i++) {
                 struct net_device *dev = hw->dev[i];
                 struct sky2_port *sky2 = netdev_priv(dev);
@@ -4356,8 +4346,6 @@ static int sky2_resume(struct pci_dev *pdev)
                 }
         }
 
-        netif_poll_enable(hw->dev[0]);
-
         return 0;
 out:
         dev_err(&pdev->dev, "resume failed (%d)\n", err);
@@ -4374,7 +4362,7 @@ static void sky2_shutdown(struct pci_dev *pdev)
         if (!hw)
                 return;
 
-        netif_poll_disable(hw->dev[0]);
+        napi_disable(&hw->napi);
 
         for (i = 0; i < hw->ports; i++) {
                 struct net_device *dev = hw->dev[i];