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netxen_nic: netxen_setup_intr() function code cleanup 

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Manish Chopra 2013-05-30 09:51:36 +00:00 committed by David S. Miller
parent b08a92bb73
commit a120e86467
1 changed files with 46 additions and 31 deletions
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77
drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
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@ -593,47 +593,43 @@ static const struct net_device_ops netxen_netdev_ops = {
};
static void
netxen_setup_intr(struct netxen_adapter *adapter)
netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
{
struct netxen_legacy_intr_set *legacy_intrp;
struct pci_dev *pdev = adapter->pdev;
int err, num_msix;
if (adapter->rss_supported) {
num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
MSIX_ENTRIES_PER_ADAPTER : 2;
} else
num_msix = 1;
adapter->max_sds_rings = 1;
adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
u32 tgt_status_reg, int_state_reg;
if (adapter->ahw.revision_id >= NX_P3_B0)
legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
else
legacy_intrp = &legacy_intr[0];
tgt_status_reg = legacy_intrp->tgt_status_reg;
int_state_reg = ISR_INT_STATE_REG;
adapter->int_vec_bit = legacy_intrp->int_vec_bit;
adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
legacy_intrp->tgt_status_reg);
adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
legacy_intrp->tgt_mask_reg);
legacy_intrp->tgt_mask_reg);
adapter->pci_int_reg = netxen_get_ioaddr(adapter,
legacy_intrp->pci_int_reg);
legacy_intrp->pci_int_reg);
adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
if (adapter->ahw.revision_id >= NX_P3_B1)
adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
ISR_INT_STATE_REG);
int_state_reg);
else
adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
CRB_INT_VECTOR);
CRB_INT_VECTOR);
}
netxen_set_msix_bit(pdev, 0);
static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
int num_msix)
{
struct pci_dev *pdev = adapter->pdev;
u32 value;
int err;
if (adapter->msix_supported) {
netxen_init_msix_entries(adapter, num_msix);
err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
if (err == 0) {
@ -644,26 +640,45 @@ netxen_setup_intr(struct netxen_adapter *adapter)
adapter->max_sds_rings = num_msix;
dev_info(&pdev->dev, "using msi-x interrupts\n");
return;
return 0;
}
if (err > 0)
pci_disable_msix(pdev);
/* fall through for msi */
}
if (use_msi && !pci_enable_msi(pdev)) {
value = msi_tgt_status[adapter->ahw.pci_func];
adapter->flags |= NETXEN_NIC_MSI_ENABLED;
adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
msi_tgt_status[adapter->ahw.pci_func]);
dev_info(&pdev->dev, "using msi interrupts\n");
adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
adapter->msix_entries[0].vector = pdev->irq;
return;
dev_info(&pdev->dev, "using msi interrupts\n");
return 0;
}
dev_info(&pdev->dev, "using legacy interrupts\n");
return -EIO;
}
static void netxen_setup_intr(struct netxen_adapter *adapter)
{
struct pci_dev *pdev = adapter->pdev;
int num_msix;
if (adapter->rss_supported)
num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
MSIX_ENTRIES_PER_ADAPTER : 2;
else
num_msix = 1;
adapter->max_sds_rings = 1;
adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
netxen_initialize_interrupt_registers(adapter);
netxen_set_msix_bit(pdev, 0);
if (!netxen_setup_msi_interrupts(adapter, num_msix))
return;
adapter->msix_entries[0].vector = pdev->irq;
dev_info(&pdev->dev, "using legacy interrupts\n");
}
static void