PCI/IOV: Skip BAR sizing for VFs

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Per PCIe r4.0, sec 9.3.4.1.11, the BAR registers in VF config space are all
RO Zero, so skip sizing them.

This is an optimization when enabling SR-IOV on a device with many VFs.

Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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KarimAllah Ahmed 2018-03-03 05:33:10 +01:00 • committed by Bjorn Helgaas

parent be20f6b063

commit bf4447fd1c

1 changed files with 4 additions and 0 deletions

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drivers/pci/probe.c

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