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PCI: initialize and release SR-IOV capability

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If a device has the SR-IOV capability, initialize it (set the ARI
Capable Hierarchy in the lowest numbered PF if necessary; calculate
the System Page Size for the VF MMIO, probe the VF Offset, Stride
and BARs). A lock for the VF bus allocation is also initialized if
a PF is the lowest numbered PF.

Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Yu Zhao
2009-03-20 11:25:11 +08:00
committed by Jesse Barnes
parent 8293b0f629
commit d1b054da8f
8 changed files with 286 additions and 0 deletions
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drivers/pci/Kconfig
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@@ -59,3 +59,13 @@ config HT_IRQ
This allows native hypertransport devices to use interrupts.
If unsure say Y.
config PCI_IOV
bool "PCI IOV support"
depends on PCI
help
I/O Virtualization is a PCI feature supported by some devices
which allows them to create virtual devices which share their
physical resources.
If unsure, say N.