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>

diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index c4c33ea..05f9d97 100644 (file)
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -372,6 +372,8 @@ found:
                        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++;
        }