host:
Replace the msgpack-RPC (rpclib) client with a gRPC-based
implementation. Add auto-generated C++ client and Python bindings
from protobuf definitions. Remove rpclib dependency and integrate
FindgRPC into CMake.
mpm:
Replace the msgpack-RPC server with a gRPC server generated from
protobuf definitions. Add pb_utils.py for type conversion between
Python and protobuf. Update rpc_server.py to dispatch calls via
gRPC stubs. Update mpm_shell to use gRPC. Replace pyudev with sysfs
scan in uio device discovery.
Bump MPM compatibility number to 7.0 and RPC version to 2.
This change requires new depedencies. E.g. for Ubuntu 24.04 or 25.10:
libgrpc++-dev, libprotobuf-dev, protobuf-compiler-grpc, python3-grpcio
This adds a new key to the discovery information coming from MPM
devices (rpc_version). The purpose of this is to smooth a transition to
alternative RPC subsystems other than mprpc.
If a device reports a different RPC version than supported by UHD, it
can still be found, but cannot be used for UHD sessions.
setproctitle is not available by default on our embedded systems. We therefore use it only if the module is installed and leave the title as is otherwise.
To get the process title one has to install setproctitle via pip and then restart MPM.
During debug, it is often helpful to distinguish the processes by
name. By default, Python processes inherit the name of the parent,
which is the name of the script executed. This change sets explicit
names for all our MPM processes.
The ECHO send error occurs if the sender tries a MTU size which
is greater than what is supported in the direction from the MPM
device back to the sender. This is uncritical as the sender will
try with a smaller MTU size afterwards. Hence, demote the log
level of this message to debug and add information about the
packet size to better understand what is happening.
MPM devices currently do not report their device name in the discovery
process. This adds the device name. After the change the device name
is reported, e.g. when using uhd_find_devices, like so:
$> uhd_find_devices
--------------------------------------------------
-- UHD Device 0
--------------------------------------------------
Device Address:
serial: DEADBEEF
claimed: False
fpga: X4_200
mgmt_addr: <mpm device ip>
name: <mpm device host name>
product: x410
type: x4xx
This gets closer to what our hardware can actually support. See the
comments for further explanations.
This has the side-effect of patching an issue on X410 (using 200 MHz
images) where garbage samples would get injected (one per packet). It
is not, however, the final fix for that problem.
The log output at level 'INFO' was pretty cluttered. This cleans up the
log messages at the higher levels. In some cases, log message typos or
capitalizations were also fixed.
The echo server was using the wrong socket options, allowing responses
to be fragmented. Since we use the echo server for MTU discovery, that
would have beaten the purpose.
Also includes minor formatting fixes.
- Moved nijesdcore to cores/
- Moved udev, net, dtoverlay, uio to sys_utils/
- Made all imports non-relative (except in __init__.py files)
- Removed some unnecessary imports
- Reordered some imports for Python conventions
- Creates mpm/ subdirectory
- First pass at hardware daemon/MPM
- New code for LMK04828, AD9371
- spidev integration
Contributions by:
Martin Braun <martin.braun@ettus.com>
Derek Kozel <derek.kozel@ettus.com>
Mark Meserve <mark.meserve@ni.com>
Andrej Rode <andrej.rode@ettus.com>
