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| author | Bjorn Helgaas <bjorn.helgaas@hp.com> | 2004-08-01 20:12:56 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2004-08-01 20:12:56 -0700 |
| commit | d91ee521674c54edff4d3d164062484388a71200 (patch) | |
| tree | 10c84ab929082ced312340226200e212d7b1ff7b /Documentation | |
| parent | 77e3ae29a790a02d1eade16ad6b52e974317b3c4 (diff) | |
| download | history-d91ee521674c54edff4d3d164062484388a71200.tar.gz | |
[PATCH] rename CONFIG_PCI_USE_VECTOR to CONFIG_PCI_MSI
The "vector" terminology is architecture-dependent. The PCI MSI interface
actually deals with Linux IRQ numbers (i.e., things you can pass to
request_irq()), and we shouldn't confuse things by calling them "vectors" just
because we're using MSI rather than an IOSAPIC.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/MSI-HOWTO.txt | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/MSI-HOWTO.txt b/Documentation/MSI-HOWTO.txt index ad1655eb79c66f..d5032eb480aa36 100644 --- a/Documentation/MSI-HOWTO.txt +++ b/Documentation/MSI-HOWTO.txt @@ -93,7 +93,7 @@ increase scalability. 5. Configuring a driver to use MSI/MSI-X By default, the kernel will not enable MSI/MSI-X on all devices that -support this capability. The CONFIG_PCI_USE_VECTOR kernel option +support this capability. The CONFIG_PCI_MSI kernel option must be selected to enable MSI/MSI-X support. 5.1 Including MSI/MSI-X support into the kernel @@ -101,10 +101,10 @@ must be selected to enable MSI/MSI-X support. To allow MSI/MSI-X capable device drivers to selectively enable MSI/MSI-X (using pci_enable_msi()/pci_enable_msix() as described below), the VECTOR based scheme needs to be enabled by setting -CONFIG_PCI_USE_VECTOR during kernel config. +CONFIG_PCI_MSI during kernel config. Since the target of the inbound message is the local APIC, providing -CONFIG_X86_LOCAL_APIC must be enabled as well as CONFIG_PCI_USE_VECTOR. +CONFIG_X86_LOCAL_APIC must be enabled as well as CONFIG_PCI_MSI. 5.2 Configuring for MSI support @@ -410,7 +410,7 @@ system whether it runs when CONFIG_X86_LOCAL_APIC=y. In SMP environment, CONFIG_X86_LOCAL_APIC is automatically set; however, in UP environment, users must manually set CONFIG_X86_LOCAL_APIC. Once CONFIG_X86_LOCAL_APIC=y, setting -CONFIG_PCI_USE_VECTOR enables the VECTOR based scheme and +CONFIG_PCI_MSI enables the VECTOR based scheme and the option for MSI-capable device drivers to selectively enable MSI/MSI-X. |