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path: root/drivers/net/sky2.c
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Diffstat (limited to 'drivers/net/sky2.c')
-rw-r--r--drivers/net/sky2.c94
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];
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-15 08:25:51 +0000