Commit e88ae01d authored Mar 25, 2015 by Wei Yang Committed by Benjamin Herrenschmidt Mar 31, 2015

PCI: Print PF SR-IOV resource that contains all VF(n) BAR space



When we size VF BAR0, VF BAR1, etc., from the SR-IOV Capability of a PF, we
learn the alignment requirement and amount of space consumed by a single
VF.  But when VFs are enabled, *each* of the NumVFs consumes that amount of
space, so the total size of the PF resource is "VF BAR size * NumVFs".

Add a printk of the total space consumed by the VFs corresponding to what
we already do for normal non-IOV BARs.

No functional change; new message only.

[bhelgaas: split out into its own patch]
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

parent 68f8e9fa

drivers/pci/iov.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -372,6 +372,8 @@ static int sriov_init(struct pci_dev *dev, int pos)
		goto failed;
		}
		res->end = res->start + resource_size(res) * total - 1;
		dev_info(&dev->dev, "VF(n) BAR%d space: %pR (contains BAR%d for %d VFs)\n",
		i, res, i, total);
		nres++;
		}