diff options
Diffstat (limited to 'drivers/pci/msi/api.c')
| -rw-r--r-- | drivers/pci/msi/api.c | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/drivers/pci/msi/api.c b/drivers/pci/msi/api.c index 6c3ad4863850..2d46a0cfd541 100644 --- a/drivers/pci/msi/api.c +++ b/drivers/pci/msi/api.c @@ -142,12 +142,15 @@ EXPORT_SYMBOL(pci_disable_msix); * @min_vecs: minimum required number of vectors (must be >= 1) * @max_vecs: maximum desired number of vectors * @flags: One or more of: - * %PCI_IRQ_MSIX Allow trying MSI-X vector allocations - * %PCI_IRQ_MSI Allow trying MSI vector allocations - * %PCI_IRQ_LEGACY Allow trying legacy INTx interrupts, if - * and only if @min_vecs == 1 - * %PCI_IRQ_AFFINITY Auto-manage IRQs affinity by spreading - * the vectors around available CPUs + * + * * %PCI_IRQ_MSIX Allow trying MSI-X vector allocations + * * %PCI_IRQ_MSI Allow trying MSI vector allocations + * + * * %PCI_IRQ_LEGACY Allow trying legacy INTx interrupts, if + * and only if @min_vecs == 1 + * + * * %PCI_IRQ_AFFINITY Auto-manage IRQs affinity by spreading + * the vectors around available CPUs * * Allocate up to @max_vecs interrupt vectors on device. MSI-X irq * vector allocation has a higher precedence over plain MSI, which has a @@ -232,10 +235,11 @@ EXPORT_SYMBOL(pci_alloc_irq_vectors_affinity); * pci_irq_vector() - Get Linux IRQ number of a device interrupt vector * @dev: the PCI device to operate on * @nr: device-relative interrupt vector index (0-based); has different - * meanings, depending on interrupt mode - * MSI-X the index in the MSI-X vector table - * MSI the index of the enabled MSI vectors - * INTx must be 0 + * meanings, depending on interrupt mode: + * + * * MSI-X the index in the MSI-X vector table + * * MSI the index of the enabled MSI vectors + * * INTx must be 0 * * Return: the Linux IRQ number, or -EINVAL if @nr is out of range */ @@ -255,10 +259,11 @@ EXPORT_SYMBOL(pci_irq_vector); * pci_irq_get_affinity() - Get a device interrupt vector affinity * @dev: the PCI device to operate on * @nr: device-relative interrupt vector index (0-based); has different - * meanings, depending on interrupt mode - * MSI-X the index in the MSI-X vector table - * MSI the index of the enabled MSI vectors - * INTx must be 0 + * meanings, depending on interrupt mode: + * + * * MSI-X the index in the MSI-X vector table + * * MSI the index of the enabled MSI vectors + * * INTx must be 0 * * Return: MSI/MSI-X vector affinity, NULL if @nr is out of range or if * the MSI(-X) vector was allocated without explicit affinity |