diff options
Diffstat (limited to 'Documentation/PCI/MSI-HOWTO.txt')
| -rw-r--r-- | Documentation/PCI/MSI-HOWTO.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/PCI/MSI-HOWTO.txt b/Documentation/PCI/MSI-HOWTO.txt index 0ac612b8c3fb..c55df2911136 100644 --- a/Documentation/PCI/MSI-HOWTO.txt +++ b/Documentation/PCI/MSI-HOWTO.txt | |||
| @@ -99,6 +99,10 @@ PCI_IRQ_NOMSI and PCI_IRQ_NOMSIX flag in case a device claims to support | |||
| 99 | MSI or MSI-X, but the support is broken, or to pass PCI_IRQ_NOLEGACY in | 99 | MSI or MSI-X, but the support is broken, or to pass PCI_IRQ_NOLEGACY in |
| 100 | case the device does not support legacy interrupt lines. | 100 | case the device does not support legacy interrupt lines. |
| 101 | 101 | ||
| 102 | By default this function will spread the interrupts around the available | ||
| 103 | CPUs, but this feature can be disabled by passing the PCI_IRQ_NOAFFINITY | ||
| 104 | flag. | ||
| 105 | |||
| 102 | To get the Linux IRQ numbers passed to request_irq() and free_irq() and the | 106 | To get the Linux IRQ numbers passed to request_irq() and free_irq() and the |
| 103 | vectors, use the following function: | 107 | vectors, use the following function: |
| 104 | 108 | ||