This commit moves these two classes from chdr_stream.py to
chdr_endpoint.py.
ChdrEndpoint needs to be aware of the specific implementation of these
classes, while ChdrInputStream and ChdrOutputStream treats them like
black boxes. Therefore, it makes more sense to have these classes
together with ChdrEndpoint
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
This commit adds the ability to specify a path to an arbitrary python
file in a simulator config file, which will be imported and used to
construct a SampleSink or SampleSource for use with data streaming.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
This commit adds flow control support when streaming data from the
Simulator to UHD. It no longer ignores STRS packets.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
This commit moves various magic numbers and hardware specific settings
into the configuration file. It also provides default presets for said
configuration files which can be inherited from.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
When sending data to the simulator, python simply cannot process the
data as fast as UHD can send it. Flow control ensures that uhd doesn't
overwhelm the simulator. Simulator > UHD flow control isn't implemented
yet.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
The only difference between a standard and timed stream is that the
first data packet of a timed stream contains a timestamp. This commit
adds the necessary fields to StreamSpec to accomplish this.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
This commit adds a device::register_device which allows uhd to start up
a simulator when uhd is called with the arguments type=sim. Creating the
device object creates a subprocess using pybind and an embedded
interpreter, and destroying the object cleans up those subprocesses.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
This commit adds support for configuration files to the simulator. As of
now, these files only change the source and sink of data samples, but
they are easily extensible to add more configuration to the simulator.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
ChdrSniffer is renamed to ChdrEndpoint to clarify its function as the
actual destination of chdr packets, rather than just an observer.
TxWorker has been renamed to OutputStream and RxWorker has been renamed
to InputStream to avoid ambiguities regarding Tx and Rx terminology.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
This commit adds a simulated RFNoC Graph to the simulator. It is also
able to process management and control packets which can traverse the
graph and read from simulated registers. Stub callbacks for creating
streams have been provided but are not implemented yet.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
When ENABLE_SIM and ENABLE_PYTHON_API are set, this commit embeds MPM
(Built with -DMPM_DEVICE=sim) into the pyuhd package.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
This commit adds daughterboard simulation to the simulator. There is a
sim_dboard class which registers it's methods with the rpc server. These
methods are visible over mpm as well as the mpm_shell.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
At this point, only about half of the mpm methods work on the simulator
over the mpm shell, and it hasn't been tested with uhd at all.
If you want to give it a try, first install all of the python
dependencies of mpm (The simulator doesn't require libusrp or any of
the C++ deps). In addition, running mpm on a desktop machine requires
the python lib netifaces. Next, make an /mpm/build directory and open
it. Run `cmake .. -DMPM_DEVICE=sim`, then `make`. Finally, run
`python3 python/usrp_hwd.py`. You should be able to open another
terminal and run `mpm/tools/mpm_shell.py localhost` to connect to the
mpm server.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
This commit fixes a spelling mistake, moves logic for checking if a
connection is local to its own method, and calls gevent.signal.signal
instead of its deprecated alias gevent.signal.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
Older revisions of the e31x used FF terminated strings in the EEPROM.
The eeprom implementation didn't take this into account and would
fail on ascii conversion. This change resolves mpm bring up on the
older revisions by replacing FF with null. This didn't affect newer
revisions because they used null terminated strings.
Signed-off-by: Steven Koo <steven.koo@ni.com>
The sysfs call used to determine link speed occasionally will fail and
return -1. In order to mitigate side effects from this behavior, return
10 Gbs link speed instead of 1 Gbs. This mitigates problems that occur
when this issue is seen on 10GbE ports. This approach was elected over
returning -1 to be handled on the host side in order to avoid breaking
mpm compatibility.
Signed-off-by: ettus <matt.prost@ni.com>
Sometimes the internal nic address is routable in network mode. This
causes mpm find to incorrectly set it as the addr. This commit removes
the internal interfaces from the routable list. This also sets the
forwarding interface as the last resort. mpm will prefer the SFP ports
since they can be higher throughput.
Signed-off-by: Steven Koo <steven.koo@ni.com>
These interfaces are renamed to sfp0 and sfp1 and thus don't exist. They
were kept in MPM for a while after the rename, but that was many
versions of UHD ago, and the current filesystem (which does the rename)
is not compatible with older versions of UHD anyway (and vice versa).
These aliases are thus dead code and can be removed.
This class is a remnant of UHD 3, and is no longer used anywhere. SID is
no longer used at all in UHD, in fact, which means the class did not
represent a valid data structure.
The routine to identify products currently only reads the motherboard
EEPROM. The N310 and N320/N321 use the same motherboard so these devices
can't be distinguished using the motherboard EEPROM alone. This change
makes get_product_id() read both the motherboard and daughterboard
EEPROM in order to determine which N3xx it actually is.
Sometimes when running usrp_hwd.py in a terminal and then canceling it
with Ctrl+C, it prints a really large stacktrace into the terminal
resulting from an uncaught gevent BlockingSwitchOutError. This comes
from trying to block on Process#join inside a gevent signal handler.
This commit resolves this issue by simply triggering an event in the
signal handler which prompts a different non-daemon thread to join the
subprocesses and end the parent process.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
- GPIOBank made the assumption that all bits used where contiguous. This amends
the documentation to make that more clear, and adds an assert
statement to check for that.
- reset_all() would reset all pins, regardless of DDR value, rendering
it useless for any GPIO bank that would want to have readable pins.
Fixed that by checking DDR value before resetting.
- Minor amendments to various docstrings; improve PyLint score by
removing superfluous inheritance from object.
Sometimes when running usrp_hwd.py in a terminal and then canceling it
with Ctrl+C, it prints a really large stacktrace into the terminal
resulting from an uncaught gevent BlockingSwitchOutError. It seems like
there was an attempt to catch this in usrp_hwd.py:kill_time(). This
try-except was surrounding a call to Process.join() which, to the best
of my knowledge, can't ever throw this exception.
Based on my troubleshooting, this error comes from the SIGTERM signal
handler of the RPC process. The handler (defined in
rpc_server.py:_rpc_server_process), is just a direct call to
RPCServer.stop(). When the server's backed is a thread pool, this call
may block when joining the thread pool, causing gevent to complain about
execution attempting to block in a signal handler.
This commit resolves this issue by simply triggering an event in the
signal handler which prompts a different thread to clean up the server
and end the process.
Signed-off-by: Samuel O'Brien <sam.obrien@ni.com>
If no internal interfaces are found to which to forward CHDR packets,
return after printing the warning instead of attempting to index the
empty list and generating an exception.
This changes MTU handling for the "internal" UDP type. Because MPM
echo packets will not be returned for internal NICs, use the iface's
programmed MTU instead.
If the minor compat number does not match (older than expected), then
generate an error message only if argument fail_on_old_minor is True;
generate a warning otherwise.
No functional changes. Fixes for things that PyLint complains about, but
are safe to change anyway, as well as a minor improvement to a docstring
that referenced non-existant args.
This touches files that are mpm.conf-related.
