diff options
| -rw-r--r-- | drivers/net/ethernet/marvell/sky2.c | 85 |
1 files changed, 59 insertions, 26 deletions
diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c index ef2dc021d09c..338b10c6f52e 100644 --- a/drivers/net/ethernet/marvell/sky2.c +++ b/drivers/net/ethernet/marvell/sky2.c @@ -148,6 +148,7 @@ static const unsigned rxqaddr[] = { Q_R1, Q_R2 }; static const u32 portirq_msk[] = { Y2_IS_PORT_1, Y2_IS_PORT_2 }; static void sky2_set_multicast(struct net_device *dev); +static irqreturn_t sky2_intr(int irq, void *dev_id); /* Access to PHY via serial interconnect */ static int gm_phy_write(struct sky2_hw *hw, unsigned port, u16 reg, u16 val) @@ -1715,6 +1716,27 @@ static void sky2_hw_up(struct sky2_port *sky2) sky2_rx_start(sky2); } +/* Setup device IRQ and enable napi to process */ +static int sky2_setup_irq(struct sky2_hw *hw, const char *name) +{ + struct pci_dev *pdev = hw->pdev; + int err; + + err = request_irq(pdev->irq, sky2_intr, + (hw->flags & SKY2_HW_USE_MSI) ? 0 : IRQF_SHARED, + name, hw); + if (err) + dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq); + else { + napi_enable(&hw->napi); + sky2_write32(hw, B0_IMSK, Y2_IS_BASE); + sky2_read32(hw, B0_IMSK); + } + + return err; +} + + /* Bring up network interface. */ static int sky2_up(struct net_device *dev) { @@ -1730,6 +1752,10 @@ static int sky2_up(struct net_device *dev) if (err) goto err_out; + /* With single port, IRQ is setup when device is brought up */ + if (hw->ports == 1 && (err = sky2_setup_irq(hw, dev->name))) + goto err_out; + sky2_hw_up(sky2); /* Enable interrupts from phy/mac for port */ @@ -2091,8 +2117,13 @@ static int sky2_down(struct net_device *dev) sky2_read32(hw, B0_IMSK) & ~portirq_msk[sky2->port]); sky2_read32(hw, B0_IMSK); - synchronize_irq(hw->pdev->irq); - napi_synchronize(&hw->napi); + if (hw->ports == 1) { + napi_disable(&hw->napi); + free_irq(hw->pdev->irq, hw); + } else { + synchronize_irq(hw->pdev->irq); + napi_synchronize(&hw->napi); + } sky2_hw_down(sky2); @@ -4798,7 +4829,7 @@ static const char *sky2_name(u8 chipid, char *buf, int sz) static int __devinit sky2_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { - struct net_device *dev; + struct net_device *dev, *dev1; struct sky2_hw *hw; int err, using_dac = 0, wol_default; u32 reg; @@ -4924,33 +4955,26 @@ static int __devinit sky2_probe(struct pci_dev *pdev, netif_napi_add(dev, &hw->napi, sky2_poll, NAPI_WEIGHT); - err = request_irq(pdev->irq, sky2_intr, - (hw->flags & SKY2_HW_USE_MSI) ? 0 : IRQF_SHARED, - hw->irq_name, hw); - if (err) { - dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq); - goto err_out_unregister; - } - sky2_write32(hw, B0_IMSK, Y2_IS_BASE); - napi_enable(&hw->napi); - sky2_show_addr(dev); if (hw->ports > 1) { - struct net_device *dev1; - - err = -ENOMEM; dev1 = sky2_init_netdev(hw, 1, using_dac, wol_default); - if (dev1 && (err = register_netdev(dev1)) == 0) - sky2_show_addr(dev1); - else { - dev_warn(&pdev->dev, - "register of second port failed (%d)\n", err); - 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 = sky2_setup_irq(hw, hw->irq_name); + if (err) + goto err_out_unregister_dev1; + + sky2_show_addr(dev1); } setup_timer(&hw->watchdog_timer, sky2_watchdog, (unsigned long) hw); @@ -4961,6 +4985,10 @@ static int __devinit sky2_probe(struct pci_dev *pdev, return 0; +err_out_unregister_dev1: + unregister_netdev(dev1); +err_out_free_dev1: + free_netdev(dev1); err_out_unregister: if (hw->flags & SKY2_HW_USE_MSI) pci_disable_msi(pdev); @@ -5000,13 +5028,18 @@ static void __devexit sky2_remove(struct pci_dev *pdev) unregister_netdev(hw->dev[i]); sky2_write32(hw, B0_IMSK, 0); + sky2_read32(hw, B0_IMSK); sky2_power_aux(hw); sky2_write8(hw, B0_CTST, CS_RST_SET); sky2_read8(hw, B0_CTST); - free_irq(pdev->irq, hw); + if (hw->ports > 1) { + napi_disable(&hw->napi); + free_irq(pdev->irq, hw); + } + if (hw->flags & SKY2_HW_USE_MSI) pci_disable_msi(pdev); pci_free_consistent(pdev, hw->st_size * sizeof(struct sky2_status_le), |