Christoph Hellwig 4ef33685aa PCI: Spread interrupt vectors in pci_alloc_irq_vectors() ...

Set the affinity_mask in the PCI device before allocating vectors so that
the affinity can be propagated through the MSI descriptor structures to the
core IRQ code.  To facilitate this, new __pci_enable_msi_range() and
__pci_enable_msix_range() helpers are factored out of their not prefixed
variants which assigning the new IRQ affinity mask in the PCI device so
that the low-level interrupt code can perform the interrupt affinity
assignment and do node-local allocations.

A new PCI_IRQ_NOAFFINITY flag is added to pci_alloc_irq_vectors() so that
this function can also be used by drivers that don't wish to use the
automatic affinity assignment.

[bhelgaas: omit "else" after "return" consistently]
Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Alexander Gordeev <[email protected]>

2016-07-21 15:57:03 -05:00

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00-INDEX

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MSI-HOWTO.txt

PCI: Spread interrupt vectors in pci_alloc_irq_vectors()

2016-07-21 15:57:03 -05:00

pci-error-recovery.txt

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pci-iov-howto.txt

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pci.txt

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pcieaer-howto.txt

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PCIEBUS-HOWTO.txt

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