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authorStephen Hemminger <shemminger@linux-foundation.org>2007-03-16 14:01:27 -0700
committerJeff Garzik <jeff@garzik.org>2007-03-23 01:48:33 -0400
commit4ebabfcb1d6af5191ef5c8305717ccbc24979f6c (patch)
treebaa48c3423069032e9ef71c7b028c663d6c98475
parente3a1b99fb60dab1b39d5022d1d8f47bebfe6d8c6 (diff)
downloadlinux-2.6.34-ux500-4ebabfcb1d6af5191ef5c8305717ccbc24979f6c.tar.gz
skge: mask irqs when device down
Wheen a port on the skge driver is not used, it should mask off interrupts from theat port. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
-rw-r--r--drivers/net/skge.c24
1 files changed, 17 insertions, 7 deletions
diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index fad189e01ec..6e1eb23d93c 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -105,7 +105,8 @@ static const int txqaddr[] = { Q_XA1, Q_XA2 };
static const int rxqaddr[] = { Q_R1, Q_R2 };
static const u32 rxirqmask[] = { IS_R1_F, IS_R2_F };
static const u32 txirqmask[] = { IS_XA1_F, IS_XA2_F };
-static const u32 irqmask[] = { IS_R1_F|IS_XA1_F, IS_R2_F|IS_XA2_F };
+static const u32 napimask[] = { IS_R1_F|IS_XA1_F, IS_R2_F|IS_XA2_F };
+static const u32 portmask[] = { IS_PORT_1, IS_PORT_2 };
static int skge_get_regs_len(struct net_device *dev)
{
@@ -2504,6 +2505,11 @@ static int skge_up(struct net_device *dev)
skge_write8(hw, Q_ADDR(rxqaddr[port], Q_CSR), CSR_START | CSR_IRQ_CL_F);
skge_led(skge, LED_MODE_ON);
+ spin_lock_irq(&hw->hw_lock);
+ hw->intr_mask |= portmask[port];
+ skge_write32(hw, B0_IMSK, hw->intr_mask);
+ spin_unlock_irq(&hw->hw_lock);
+
netif_poll_enable(dev);
return 0;
@@ -2533,6 +2539,13 @@ static int skge_down(struct net_device *dev)
if (hw->chip_id == CHIP_ID_GENESIS && hw->phy_type == SK_PHY_XMAC)
cancel_delayed_work(&skge->link_thread);
+ netif_poll_disable(dev);
+
+ spin_lock_irq(&hw->hw_lock);
+ hw->intr_mask &= ~portmask[port];
+ skge_write32(hw, B0_IMSK, hw->intr_mask);
+ spin_unlock_irq(&hw->hw_lock);
+
skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF);
if (hw->chip_id == CHIP_ID_GENESIS)
genesis_stop(skge);
@@ -2575,8 +2588,6 @@ static int skge_down(struct net_device *dev)
skge_led(skge, LED_MODE_OFF);
- netif_poll_disable(dev);
-
netif_tx_lock_bh(dev);
skge_tx_clean(dev);
netif_tx_unlock_bh(dev);
@@ -3051,7 +3062,7 @@ static int skge_poll(struct net_device *dev, int *budget)
spin_lock_irqsave(&hw->hw_lock, flags);
__netif_rx_complete(dev);
- hw->intr_mask |= irqmask[skge->port];
+ hw->intr_mask |= napimask[skge->port];
skge_write32(hw, B0_IMSK, hw->intr_mask);
skge_read32(hw, B0_IMSK);
spin_unlock_irqrestore(&hw->hw_lock, flags);
@@ -3415,10 +3426,9 @@ static int skge_reset(struct skge_hw *hw)
else
hw->ram_size = t8 * 4096;
- hw->intr_mask = IS_HW_ERR | IS_PORT_1;
- if (hw->ports > 1)
- hw->intr_mask |= IS_PORT_2;
+ hw->intr_mask = IS_HW_ERR;
+ /* Use PHY IRQ for all but fiber based Genesis board */
if (!(hw->chip_id == CHIP_ID_GENESIS && hw->phy_type == SK_PHY_XMAC))
hw->intr_mask |= IS_EXT_REG;