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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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4
drivers/pci/probe.c
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@@ -785,6 +785,7 @@ static int pci_setup_device(struct pci_dev * dev)
static void pci_release_capabilities(struct pci_dev *dev)
{
pci_vpd_release(dev);
pci_iov_release(dev);
}
/**
@@ -979,6 +980,9 @@ static void pci_init_capabilities(struct pci_dev *dev)
/* Alternative Routing-ID Forwarding */
pci_enable_ari(dev);
/* Single Root I/O Virtualization */
pci_iov_init(dev);
}
void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)