Merge branch 'pci/endpoint'

- Pass the correct physical and virtual endpoint function numbers when
  setting translation of inbound memory windows (Koichiro Den)

- Make embedded doorbell IRQ non-shared, since currently only the first EPF
  can allocate doorbells (Koichiro Den)

- MSI doorbells currently target the first EPF attached to an EPC; let
  other EPFs try the embedded doorbell instead of failing when they can't
  use the MSI doorbell (Koichiro Den)

- Serialize scan of vNTB virtual PCI bus with other PCI topology changes
  (Koichiro Den)

- Manage vNTB lifetimes to avoid leaking virtual devices and buses and
  allow removal (Koichiro Den)

- Track vNTB link state from both sides so both see the same effective link
  state (Koichiro Den)

- Add local epf pointer to shorten repeated ntp->epf accesses (Koichiro
  Den)

- Configure vNTB MSI-X when supported to avoid IOMMU faults and failure to
  deliver doorbell interrupts on RC (Koichiro Den)

* pci/endpoint:
  PCI: endpoint: pci-epf-vntb: Honor MSI-X selection
  PCI: endpoint: pci-epf-vntb: Use a local epf pointer in interrupt setup
  PCI: endpoint: pci-epf-vntb: Track link state from both sides
  PCI: endpoint: pci-epf-vntb: Manage virtual NTB and PCI bus lifetime
  PCI: endpoint: pci-epf-vntb: Serialize virtual PCI bus scan
  PCI: endpoint: pci-ep-msi: Let non-first EPFs use embedded doorbells
  PCI: endpoint: pci-ep-msi: Make embedded doorbell IRQ exclusive
  PCI: endpoint: pci-epf-vntb: Pass PF/VF number when BAR programming

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