PCI/sysfs: add per pci device msi[x] irq listing (v5)

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This patch adds a per-pci-device subdirectory in sysfs called:
/sys/bus/pci/devices/<device>/msi_irqs

This sub-directory exports the set of msi vectors allocated by a given
pci device, by creating a numbered sub-directory for each vector beneath
msi_irqs.  For each vector various attributes can be exported.
Currently the only attribute is called mode, which tracks the
operational mode of that vector (msi vs. msix)

Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

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This commit is contained in:

Neil Horman 2011-10-06 14:08:18 -04:00 • committed by Jesse Barnes

parent 8b6a5af92c

commit da8d1c8ba4

4 changed files with 133 additions and 0 deletions

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18

Documentation/ABI/testing/sysfs-bus-pci

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111

drivers/pci/msi.c

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3

include/linux/msi.h

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1

include/linux/pci.h

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