UHD 4.3.0.0 release

The UHD 4.3.0.0 release adds:

• Extension framework support
• FPGA builds using Xilinx Vivado 2021.1 (B2xx, E3xx, N3xx, X3xx, and X4xx devices)
• Bug fixes and improvements for USRP devices. See the changelog.

Changelog

• ci
  • Add n310 rf tests to monopipeline
  • Add XQ testing to n321
  • Mark SucceededWithIssues as failure
  • Remove Fedora 34 and add Fedora 36
  • set required capability for windows builds
  • Workaround Ubuntu 18.04 systemd bug 1988563
• docs
  • Add known issue for Xilinx AR 76681
  • Clarify live install and remove version
• examples
  • Enable radio loopback for a single radio
  • rx_samples_c: Use error_code instead of return_code
• experts
  • Move expert framework into public API
• extension
  • Add extension example
  • Add extension framework
  • Add Extension Framework documentation
• features
  • Make all feature headers install
• fpga
  • ci: Upgrade to Vivado 2021.1
  • docs: Upgrade to Vivado 2021.1
  • e31x: Add PROTOVER to eth_internal
  • e31x: Cleanup MTU parameters
  • e31x: Fix IP dependencies
  • e31x: Upgrade to Vivado 2021.1
  • e320: Bump FPGA compat to 6.1
  • e320: Cleanup MTU parameters
  • e320: Support advanced transport adapter
  • e320: Upgrade to Vivado 2021.1
  • Fix target dependencies in Makefile.xxx.inc
  • Fix Vivado version check in viv_hardware_utils
  • lib: Add advanced features to IPv4 SV transport adapter
  • lib: Add chdr_strip_header module
  • lib: Add compat to Verilog transport adapter
  • lib: Add eth_ipv4_interface_tb
  • lib: Add MTU parameter to eth_internal
  • lib: Add NET_CHDR_W parameter to transport adapters
  • lib: Add RegPort SystemVerilog interface
  • lib: Add support for length in tuser in eth_ipv4_add_udp
  • lib: Add verilog-compatible wrapper for eth_ipv4_interface
  • lib: Fix addsub_hls
  • lib: Fix NODE_INST parameter in eth_internal
  • lib: Upgrade to Vivado 2021.1
  • n3xx: Add BUFG to SPI output line to ease timing
  • n3xx: Add PROTOVER to n3xx_mgt_wrapper
  • n3xx: Bump FPGA compat to 8.1
  • n3xx: Cleanup MTU parameters
  • n3xx: Fix async clocks relationship
  • n3xx: Remove unused USE_REPLAY parameter
  • n3xx: Support advanced transport adapter
  • n3xx: Upgrade to Vivado 2021.1
  • sim: Support unused tkeep in AxiStreamPacket::dump_bytes()
  • sim: Update struct enum initialization
  • sim: Workaround Vivado bug in ChdrIfaceBfm_tb
  • tools: Add utility to upgrade TCL-based BD
  • tools: Allow IP renaming with viv_ip_xci_editor.py
  • tools: Fix HLS IP builder for Vivado 2021.1
  • tools: Lattice build flow clean-up
  • Update makefiles to allow parallel FPGA builds
  • Use AR76780 patch for fir_compiler
  • x300: Cleanup MTU parameters
  • x300: Upgrade to Vivado 2021.1
  • x400: Bump FPGA compat to 7.9
  • x400: Fix link status detection of 10 GbE IP
  • x400: Fix NODE_INST for transport adapters
  • x400: Fix transport adapter PROTOVER
  • x400: Upgrade to Vivado 2021.1
  • x400: zbx: Revision Bump
  • zbx: Update HTML regmap
• host
  • if monotonic don't run monotonic algo
• images
  • Update filesystem images to point to 4.3.0.0-rc2
  • update fpgas for vivado 2021.1 upgrade
  • update manifest for raw udp streaming
  • installer: update ubuntu uhd library verison
• mpm
  • bump fpga compat for raw udp streaming
  • bump x4xx fpga compat
• MPMD:
  • Limit 1GbE MTU discovery to 1500
• python
  • Fix error from pybind11 2.10 update
  • update to pybind11 for Python 3.11
• rfnoc
  • Mutex graph on set_property
• tests
  • Setup isolated processors to use performance governor
• tune_map
  • Publish and simplify zbx_tune_map
• uhd
  • multi_usrp.cpp remove commented out code
  • Revert Raw UDP Host Changes
  • update to uniform SPDX license identifier