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Differential D59062

acpi_pci: Inherit PF locality for SR-IOV VFs
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Authored by kbowling on Fri, Aug 21, 3:37 AM.
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jhb
markj
Commits
rGbf94f298c998: acpi_pci: Inherit PF locality for SR-IOV VFs
rG2dac6502f8b8: acpi_pci: Inherit PF locality for SR-IOV VFs
rG1a2a88684a01: acpi_pci: Inherit PF locality for SR-IOV VFs
Summary
SR-IOV VFs are instantiated from their PF and intentionally do not
receive an ACPI handle by matching their runtime BDF.  Consequently,
ACPI locality queries for a VF fall back to the upstream bus.  This is
usually sufficient, but loses a _PXM supplied specifically for the PF.

Use the PCI core's owning-PF accessor for BUS_GET_DOMAIN and
BUS_GET_CPUS requests made for a VF.  This preserves the VF's lack of
an ACPI handle while allowing its CPU and NUMA placement to follow the
PF.

MFC after:      2 weeks

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Event Timeline

kbowling created this revision.Fri, Aug 21, 3:37 AM
Herald added a subscriber: imp. · View Herald TranscriptFri, Aug 21, 3:37 AM
kbowling requested review of this revision.Fri, Aug 21, 3:37 AM
kbowling added a parent revision: D59061: acpi_pci: Do not match SR-IOV VFs to ACPI devices.
kbowling added a child revision: D59063: acpi_pci: Honor device proximity for DMA tags.Fri, Aug 21, 3:52 AM
kbowling updated this revision to Diff 184729.Sat, Aug 22, 3:24 AM
kbowling edited the summary of this revision. (Show Details)

Accessor split out to 3481a9cdc4dc

jhb accepted this revision.Wed, Aug 26, 6:02 PM
This revision is now accepted and ready to land.Wed, Aug 26, 6:02 PM
Closed by commit rG1a2a88684a01: acpi_pci: Inherit PF locality for SR-IOV VFs (authored by Kevin Bowling <kbowling@FreeBSD.org>). · Explain WhyThu, Aug 27, 5:02 AM
This revision was automatically updated to reflect the committed changes.
Kevin Bowling <kbowling@FreeBSD.org> added a commit: rG1a2a88684a01: acpi_pci: Inherit PF locality for SR-IOV VFs.
Kevin Bowling <kbowling@FreeBSD.org> added a commit: rG2dac6502f8b8: acpi_pci: Inherit PF locality for SR-IOV VFs.Thu, Sep 10, 5:48 AM
Kevin Bowling <kbowling@FreeBSD.org> added a commit: rGbf94f298c998: acpi_pci: Inherit PF locality for SR-IOV VFs.Thu, Sep 10, 5:54 AM

Revision Contents
Changeset List

PathSize
sys/
dev/
acpica/
25 lines

Diff 185178

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sys/dev/acpica/acpi_pci.c

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