Add support for MSI-X to xhci_pci
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Authored by andrew on Dec 23 2015, 10:09 PM.

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Reviewers

jhb
• hselasky

Commits

rS292683: Ads support to the xhci pci attachment to use MSI-X interrupts when

Summary

This adds support to the xhci pci attachment to use MSI-X interrupts
when available. This is needed on some hardware, for example the Cavium
ThunderX.

This depends on rS292669

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Repository

rS FreeBSD src repository - subversion

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Buildable 1812
Build 1819: arc lint + arc unit

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andrew updated this revision to Diff 11647.Dec 23 2015, 10:09 PM

andrew retitled this revision from to Add support for MSI-X to xhci_pci.

andrew updated this object.

andrew edited the test plan for this revision. (Show Details)

andrew added a reviewer: • hselasky.

andrew added a subscriber: emaste.

Herald added a subscriber: imp. · View Herald TranscriptDec 23 2015, 10:09 PM

emaste added a subscriber: jhb.Dec 24 2015, 12:22 AM

Note that technically the PBA might be in a different BAR, but if so pci_alloc_msix() will fail and this will fall through to MSI or INTx, so this should be fine. Someday I will fix the PCI bus to alloc the MSI-X BARs on-demand instead. :-/

This revision is now accepted and ready to land.Dec 24 2015, 6:00 AM