[RFC PATCH 0/3] PCI: Enable 10-bit tags support for PCIe devices

[Dongdong Liu <liudongdong3@huawei.com>]

10-Bit Tag capability, introduced in PCIe-4.0 increases the total Tag
field size from 8 bits to 10 bits.

For platforms where the RC supports 10-Bit Tag Completer capability,
it is highly recommended for platform firmware or operating software
that configures PCIe hierarchies to Set the 10-Bit Tag Requester Enable
bit automatically in Endpoints with 10-Bit Tag Requester capability. This
enables the important class of 10-Bit Tag capable adapters that send
Memory Read Requests only to host memory.

This patchset is to enable 10-bits for PCIe EP devices.

Dongdong Liu (3):
  PCI: Add 10-Bit Tag register definitions
  PCI: Enable 10-bit tags support for PCIe devices
  PCI/IOV: Enable 10-bit tags support for PCIe VF devices

 drivers/pci/iov.c             |  8 ++++++++
 drivers/pci/probe.c           | 39 +++++++++++++++++++++++++++++++++++++++
 include/linux/pci.h           |  1 +
 include/uapi/linux/pci_regs.h |  5 +++++
 4 files changed, 53 insertions(+)

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1.9.1