From 2aceefcbd5a73059e5f52831817ec277e987440d Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 25 Jul 2011 13:08:40 -0700 Subject: PCI: make SRIOV resources optional From: Yinghai Lu Allocate resources to SRIOV BARs only after all other required resource-requests are satisfied. Dont retry if resource allocation for SRIOV BARs fail. Signed-off-by: Ram Pai Signed-off-by: Yinghai Lu Signed-off-by: Jesse Barnes --- drivers/pci/setup-bus.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers/pci') diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 1796c6ffe91c..1c19b9f4019a 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -673,6 +673,16 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, if (r->parent || (r->flags & mask) != type) continue; r_size = resource_size(r); +#ifdef CONFIG_PCI_IOV + /* put SRIOV requested res to the optional list */ + if (add_head && i >= PCI_IOV_RESOURCES && + i <= PCI_IOV_RESOURCE_END) { + r->end = r->start - 1; + add_to_list(add_head, dev, r, r_size, 1); + children_add_size += r_size; + continue; + } +#endif /* For bridges size != alignment */ align = pci_resource_alignment(dev, r); order = __ffs(align) - 20; -- cgit v1.2.2