diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/marvell/skge.c | 72 |
1 files changed, 52 insertions, 20 deletions
diff --git a/drivers/net/ethernet/marvell/skge.c b/drivers/net/ethernet/marvell/skge.c index 88e5856e06db..a0a647154245 100644 --- a/drivers/net/ethernet/marvell/skge.c +++ b/drivers/net/ethernet/marvell/skge.c @@ -113,6 +113,7 @@ static void yukon_init(struct skge_hw *hw, int port); static void genesis_mac_init(struct skge_hw *hw, int port); static void genesis_link_up(struct skge_port *skge); static void skge_set_multicast(struct net_device *dev); +static irqreturn_t skge_intr(int irq, void *dev_id); /* Avoid conditionals by using array */ static const int txqaddr[] = { Q_XA1, Q_XA2 }; @@ -2568,6 +2569,16 @@ static int skge_up(struct net_device *dev) if (err) goto free_rx_ring; + if (hw->ports == 1) { + err = request_irq(hw->pdev->irq, skge_intr, IRQF_SHARED, + dev->name, hw); + if (err) { + netdev_err(dev, "Unable to allocate interrupt %d error: %d\n", + hw->pdev->irq, err); + goto free_tx_ring; + } + } + /* Initialize MAC */ spin_lock_bh(&hw->phy_lock); if (is_genesis(hw)) @@ -2595,11 +2606,14 @@ static int skge_up(struct net_device *dev) spin_lock_irq(&hw->hw_lock); hw->intr_mask |= portmask[port]; skge_write32(hw, B0_IMSK, hw->intr_mask); + skge_read32(hw, B0_IMSK); spin_unlock_irq(&hw->hw_lock); napi_enable(&skge->napi); return 0; + free_tx_ring: + kfree(skge->tx_ring.start); free_rx_ring: skge_rx_clean(skge); kfree(skge->rx_ring.start); @@ -2640,9 +2654,13 @@ static int skge_down(struct net_device *dev) spin_lock_irq(&hw->hw_lock); hw->intr_mask &= ~portmask[port]; - skge_write32(hw, B0_IMSK, hw->intr_mask); + skge_write32(hw, B0_IMSK, (hw->ports == 1) ? 0 : hw->intr_mask); + skge_read32(hw, B0_IMSK); spin_unlock_irq(&hw->hw_lock); + if (hw->ports == 1) + free_irq(hw->pdev->irq, hw); + skge_write8(skge->hw, SK_REG(skge->port, LNK_LED_REG), LED_OFF); if (is_genesis(hw)) genesis_stop(skge); @@ -3603,7 +3621,8 @@ static int skge_reset(struct skge_hw *hw) skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100)); skge_write32(hw, B2_IRQM_CTRL, TIM_START); - skge_write32(hw, B0_IMSK, hw->intr_mask); + /* Leave irq disabled until first port is brought up. */ + skge_write32(hw, B0_IMSK, 0); for (i = 0; i < hw->ports; i++) { if (is_genesis(hw)) @@ -3930,31 +3949,39 @@ static int __devinit skge_probe(struct pci_dev *pdev, goto err_out_free_netdev; } - err = request_irq(pdev->irq, skge_intr, IRQF_SHARED, hw->irq_name, hw); - if (err) { - dev_err(&pdev->dev, "%s: cannot assign irq %d\n", - dev->name, pdev->irq); - goto err_out_unregister; - } skge_show_addr(dev); if (hw->ports > 1) { dev1 = skge_devinit(hw, 1, using_dac); - if (dev1 && register_netdev(dev1) == 0) - skge_show_addr(dev1); - else { - /* Failure to register second port need not be fatal */ - dev_warn(&pdev->dev, "register of second port failed\n"); - hw->dev[1] = NULL; - hw->ports = 1; - if (dev1) - free_netdev(dev1); + if (!dev1) { + err = -ENOMEM; + goto err_out_unregister; } + + err = register_netdev(dev1); + if (err) { + dev_err(&pdev->dev, "cannot register second net device\n"); + goto err_out_free_dev1; + } + + err = request_irq(pdev->irq, skge_intr, IRQF_SHARED, + hw->irq_name, hw); + if (err) { + dev_err(&pdev->dev, "cannot assign irq %d\n", + pdev->irq); + goto err_out_unregister_dev1; + } + + skge_show_addr(dev1); } pci_set_drvdata(pdev, hw); return 0; +err_out_unregister_dev1: + unregister_netdev(dev1); +err_out_free_dev1: + free_netdev(dev1); err_out_unregister: unregister_netdev(dev); err_out_free_netdev: @@ -3992,14 +4019,19 @@ static void __devexit skge_remove(struct pci_dev *pdev) spin_lock_irq(&hw->hw_lock); hw->intr_mask = 0; - skge_write32(hw, B0_IMSK, 0); - skge_read32(hw, B0_IMSK); + + if (hw->ports > 1) { + skge_write32(hw, B0_IMSK, 0); + skge_read32(hw, B0_IMSK); + free_irq(pdev->irq, hw); + } spin_unlock_irq(&hw->hw_lock); skge_write16(hw, B0_LED, LED_STAT_OFF); skge_write8(hw, B0_CTST, CS_RST_SET); - free_irq(pdev->irq, hw); + if (hw->ports > 1) + free_irq(pdev->irq, hw); pci_release_regions(pdev); pci_disable_device(pdev); if (dev1) |