diff options
| author | Stefan Assmann <sassmann@kpanic.de> | 2012-12-04 06:00:12 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2012-12-06 21:45:59 -0800 |
| commit | 53c7d06418bdf2f20fc869b33e3a44bb770aff1e (patch) | |
| tree | dd2634954e3eb0e64324188cc55ae92bd64b6783 /drivers | |
| parent | cb6d0f5eef58cfa1a78ebcfebd3d630c31061f79 (diff) | |
| download | linux-53c7d06418bdf2f20fc869b33e3a44bb770aff1e.tar.bz2 | |
igb: remove duplicate code for fallback interrupt initialization
Given a small change to igb_init_interrupt_scheme() the function fits
igb_request_irq() for MSI/legacy interrupts initialization as well, instead of
duplicating most of its code there.
Also adding a missing igb_configure() to igb_request_irq() for MSI fallback
to work properly.
Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index de4ebb306530..615b68c06505 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -122,6 +122,7 @@ static void igb_remove(struct pci_dev *pdev); static int igb_sw_init(struct igb_adapter *); static int igb_open(struct net_device *); static int igb_close(struct net_device *); +static void igb_configure(struct igb_adapter *); static void igb_configure_tx(struct igb_adapter *); static void igb_configure_rx(struct igb_adapter *); static void igb_clean_all_tx_rings(struct igb_adapter *); @@ -948,11 +949,14 @@ static void igb_clear_interrupt_scheme(struct igb_adapter *adapter) * Attempt to configure interrupts using the best available * capabilities of the hardware and kernel. **/ -static void igb_set_interrupt_capability(struct igb_adapter *adapter) +static void igb_set_interrupt_capability(struct igb_adapter *adapter, bool msix) { int err; int numvecs, i; + if (!msix) + goto msi_only; + /* Number of supported queues. */ adapter->num_rx_queues = adapter->rss_queues; if (adapter->vfs_allocated_count) @@ -1199,12 +1203,12 @@ err_out: * * This function initializes the interrupts and allocates all of the queues. **/ -static int igb_init_interrupt_scheme(struct igb_adapter *adapter) +static int igb_init_interrupt_scheme(struct igb_adapter *adapter, bool msix) { struct pci_dev *pdev = adapter->pdev; int err; - igb_set_interrupt_capability(adapter); + igb_set_interrupt_capability(adapter, msix); err = igb_alloc_q_vectors(adapter); if (err) { @@ -1240,20 +1244,15 @@ static int igb_request_irq(struct igb_adapter *adapter) /* fall back to MSI */ igb_free_all_tx_resources(adapter); igb_free_all_rx_resources(adapter); + igb_clear_interrupt_scheme(adapter); - if (!pci_enable_msi(pdev)) - adapter->flags |= IGB_FLAG_HAS_MSI; - adapter->num_tx_queues = 1; - adapter->num_rx_queues = 1; - adapter->num_q_vectors = 1; - err = igb_alloc_q_vectors(adapter); - if (err) { - dev_err(&pdev->dev, - "Unable to allocate memory for vectors\n"); + err = igb_init_interrupt_scheme(adapter, false); + if (err) goto request_done; - } + igb_setup_all_tx_resources(adapter); igb_setup_all_rx_resources(adapter); + igb_configure(adapter); } igb_assign_vector(adapter->q_vector[0], 0); @@ -2444,7 +2443,7 @@ static int igb_sw_init(struct igb_adapter *adapter) GFP_ATOMIC); /* This call may decrease the number of queues */ - if (igb_init_interrupt_scheme(adapter)) { + if (igb_init_interrupt_scheme(adapter, true)) { dev_err(&pdev->dev, "Unable to allocate memory for queues\n"); return -ENOMEM; } @@ -6818,7 +6817,7 @@ static int igb_resume(struct device *dev) pci_enable_wake(pdev, PCI_D3hot, 0); pci_enable_wake(pdev, PCI_D3cold, 0); - if (igb_init_interrupt_scheme(adapter)) { + if (igb_init_interrupt_scheme(adapter, true)) { dev_err(&pdev->dev, "Unable to allocate memory for queues\n"); return -ENOMEM; } |