diff options
| author | Auke Kok <auke-jan.h.kok@intel.com> | 2007-05-17 15:29:07 -0700 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-05-17 20:43:15 -0400 |
| commit | fb136c070bfdde11dc79758674f54fb26bba1a2f (patch) | |
| tree | 3210ac72ce77727fe99e0365a26ad3fe64d7fde4 /drivers/net/ixgb | |
| parent | 4a79a04e4c0aa06b556b7d52bfb31c05fbb05616 (diff) | |
| download | op-kernel-dev-fb136c070bfdde11dc79758674f54fb26bba1a2f.zip op-kernel-dev-fb136c070bfdde11dc79758674f54fb26bba1a2f.tar.gz | |
ixgb: don't print error if pci_enable_msi() fails, cleanup minor leak
pci_enable_msi calls can fail for normal operational reasons. Driver
should not print an error message in that case. Fix a leak that leaves
msi enabled if pci_request_irq fails. We can remove CONFIG_PCI_MSI
ifdefs alltogether
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/ixgb')
| -rw-r--r-- | drivers/net/ixgb/ixgb.h | 2 | ||||
| -rw-r--r-- | drivers/net/ixgb/ixgb_main.c | 36 |
2 files changed, 15 insertions, 23 deletions
diff --git a/drivers/net/ixgb/ixgb.h b/drivers/net/ixgb/ixgb.h index c8e9086..3569d5b 100644 --- a/drivers/net/ixgb/ixgb.h +++ b/drivers/net/ixgb/ixgb.h @@ -193,8 +193,6 @@ struct ixgb_adapter { u16 msg_enable; struct ixgb_hw_stats stats; uint32_t alloc_rx_buff_failed; -#ifdef CONFIG_PCI_MSI boolean_t have_msi; -#endif }; #endif /* _IXGB_H_ */ diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c index 6d2b059..991c883 100644 --- a/drivers/net/ixgb/ixgb_main.c +++ b/drivers/net/ixgb/ixgb_main.c @@ -227,7 +227,7 @@ int ixgb_up(struct ixgb_adapter *adapter) { struct net_device *netdev = adapter->netdev; - int err; + int err, irq_flags = IRQF_SHARED; int max_frame = netdev->mtu + ENET_HEADER_SIZE + ENET_FCS_LENGTH; struct ixgb_hw *hw = &adapter->hw; @@ -246,26 +246,21 @@ ixgb_up(struct ixgb_adapter *adapter) /* disable interrupts and get the hardware into a known state */ IXGB_WRITE_REG(&adapter->hw, IMC, 0xffffffff); -#ifdef CONFIG_PCI_MSI - { - boolean_t pcix = (IXGB_READ_REG(&adapter->hw, STATUS) & - IXGB_STATUS_PCIX_MODE) ? TRUE : FALSE; - adapter->have_msi = TRUE; - - if (!pcix) - adapter->have_msi = FALSE; - else if((err = pci_enable_msi(adapter->pdev))) { - DPRINTK(PROBE, ERR, - "Unable to allocate MSI interrupt Error: %d\n", err); - adapter->have_msi = FALSE; + /* only enable MSI if bus is in PCI-X mode */ + if (IXGB_READ_REG(&adapter->hw, STATUS) & IXGB_STATUS_PCIX_MODE) { + err = pci_enable_msi(adapter->pdev); + if (!err) { + adapter->have_msi = 1; + irq_flags = 0; + } /* proceed to try to request regular interrupt */ } - } -#endif - if((err = request_irq(adapter->pdev->irq, &ixgb_intr, - IRQF_SHARED | IRQF_SAMPLE_RANDOM, - netdev->name, netdev))) { + err = request_irq(adapter->pdev->irq, &ixgb_intr, irq_flags, + netdev->name, netdev); + if (err) { + if (adapter->have_msi) + pci_disable_msi(adapter->pdev); DPRINTK(PROBE, ERR, "Unable to allocate interrupt Error: %d\n", err); return err; @@ -307,11 +302,10 @@ ixgb_down(struct ixgb_adapter *adapter, boolean_t kill_watchdog) ixgb_irq_disable(adapter); free_irq(adapter->pdev->irq, netdev); -#ifdef CONFIG_PCI_MSI - if(adapter->have_msi == TRUE) + + if (adapter->have_msi) pci_disable_msi(adapter->pdev); -#endif if(kill_watchdog) del_timer_sync(&adapter->watchdog_timer); #ifdef CONFIG_IXGB_NAPI |
