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Convert the number of MSI IRQs on x86 from a constant to a tunable.
rS340460
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Description

Convert the number of MSI IRQs on x86 from a constant to a tunable.

The number of MSI IRQs still defaults to 512, but it can now be
changed at boot time via the machdep.num_msi_irqs tunable.

Reviewed by: kib, royger (older version)
Reviewed by: markj
MFC after: 1 month
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D17977

Details

Provenance
jhbAuthored on
Reviewer
kib
Differential Revision
D17977: Convert the number of MSI IRQs on x86 from a constant to a tunable.
Parents
rS340459: MFC r340361:
Branches
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Changes (4)

PathSize
head/
sys/
x86/
include/
x86/
xen/

rS340460

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head/sys/x86/include/intr_machdep.h

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head/sys/x86/x86/msi.c

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head/sys/x86/xen/xen_intr.c

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head/sys/x86/xen/xen_msi.c

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