On Tue, Feb 22, 2022 at 10:23:51AM -0600, Frank Li wrote: > This implement NTB function for PCIe EP to RC connections. > The existed ntb epf need two PCI EPs and two PCI Host. > > This just need EP to RC connections. > > ┌────────────┐ ┌─────────────────────────────────────┐ > │ │ │ │ > ├────────────┤ │ ┌──────────────┤ > │ NTB │ │ │ NTB │ > │ NetDev │ │ │ NetDev │ > ├────────────┤ │ ├──────────────┤ > │ NTB │ │ │ NTB │ > │ Transfer │ │ │ Transfer │ > ├────────────┤ │ ├──────────────┤ > │ │ │ │ │ > │ PCI NTB │ │ │ │ > │ EPF │ │ │ │ > │ Driver │ │ │ PCI Virtual │ > │ │ ├───────────────┐ │ NTB Driver │ > │ │ │ PCI EP NTB │◄────►│ │ > │ │ │ FN Driver │ │ │ > ├────────────┤ ├───────────────┤ ├──────────────┤ > │ │ │ │ │ │ > │ PCI BUS │ ◄─────► │ PCI EP BUS │ │ Virtual PCI │ > │ │ PCI │ │ │ BUS │ > └────────────┘ └───────────────┴──────┴──────────────┘ > PCI RC PCI EP > > > > Frank Li (4): > PCI: designware-ep: Allow pci_epc_set_bar() update inbound map address > NTB: epf: Allow more flexibility in the memory BAR map method > PCI: endpoint: Support NTB transfer between RC and EP > Documentation: PCI: Add specification for the PCI vNTB function device > > Documentation/PCI/endpoint/index.rst | 2 + > .../PCI/endpoint/pci-vntb-function.rst | 126 ++ > Documentation/PCI/endpoint/pci-vntb-howto.rst | 167 ++ > drivers/ntb/hw/epf/ntb_hw_epf.c | 48 +- > .../pci/controller/dwc/pcie-designware-ep.c | 10 +- > drivers/pci/endpoint/functions/Kconfig | 11 + > drivers/pci/endpoint/functions/Makefile | 1 + > drivers/pci/endpoint/functions/pci-epf-vntb.c | 1424 +++++++++++++++++ > 8 files changed, 1775 insertions(+), 14 deletions(-) > create mode 100644 Documentation/PCI/endpoint/pci-vntb-function.rst > create mode 100644 Documentation/PCI/endpoint/pci-vntb-howto.rst > create mode 100644 drivers/pci/endpoint/functions/pci-epf-vntb.c > > -- > 2.24.0.rc1 > Sorry for the extremely long delay in response. This series has been in my ntb-next branch for some time and will be in my pull request for v5.20 which should be going out later today. Thanks, Jon
