Merge FPGA repository back into UHD repository

The FPGA codebase was removed from the UHD repository in 2014 to reduce the size of the repository. However, over the last half-decade, the split between the repositories has proven more burdensome than it has been helpful. By merging the FPGA code back, it will be possible to create atomic commits that touch both FPGA and UHD codebases. Continuous integration testing is also simplified by merging the repositories, because it was previously difficult to automatically derive the correct UHD branch when testing a feature branch on the FPGA repository. This commit also updates the license files and paths therein. We are therefore merging the repositories again. Future development for FPGA code will happen in the same repository as the UHD host code and MPM code. == Original Codebase and Rebasing == The original FPGA repository will be hosted for the foreseeable future at its original local location: https://github.com/EttusResearch/fpga/ It can be used for bisecting, reference, and a more detailed history. The final commit from said repository to be merged here is 05003794e2da61cabf64dd278c45685a7abad7ec. This commit is tagged as v4.0.0.0-pre-uhd-merge. If you have changes in the FPGA repository that you want to rebase onto the UHD repository, simply run the following commands: - Create a directory to store patches (this should be an empty directory): mkdir ~/patches - Now make sure that your FPGA codebase is based on the same state as the code that was merged: cd src/fpga # Or wherever your FPGA code is stored git rebase v4.0.0.0-pre-uhd-merge Note: The rebase command may look slightly different depending on what exactly you're trying to rebase. - Create a patch set for your changes versus v4.0.0.0-pre-uhd-merge: git format-patch v4.0.0.0-pre-uhd-merge -o ~/patches Note: Make sure that only patches are stored in your output directory. It should otherwise be empty. Make sure that you picked the correct range of commits, and only commits you wanted to rebase were exported as patch files. - Go to the UHD repository and apply the patches: cd src/uhd # Or wherever your UHD repository is stored git am --directory fpga ~/patches/* rm -rf ~/patches # This is for cleanup == Contributors == The following people have contributed mainly to these files (this list is not complete): Co-authored-by: Alex Williams <alex.williams@ni.com> Co-authored-by: Andrej Rode <andrej.rode@ettus.com> Co-authored-by: Ashish Chaudhari <ashish@ettus.com> Co-authored-by: Ben Hilburn <ben.hilburn@ettus.com> Co-authored-by: Ciro Nishiguchi <ciro.nishiguchi@ni.com> Co-authored-by: Daniel Jepson <daniel.jepson@ni.com> Co-authored-by: Derek Kozel <derek.kozel@ettus.com> Co-authored-by: EJ Kreinar <ej@he360.com> Co-authored-by: Humberto Jimenez <humberto.jimenez@ni.com> Co-authored-by: Ian Buckley <ian.buckley@gmail.com> Co-authored-by: Jörg Hofrichter <joerg.hofrichter@ni.com> Co-authored-by: Jon Kiser <jon.kiser@ni.com> Co-authored-by: Josh Blum <josh@joshknows.com> Co-authored-by: Jonathon Pendlum <jonathan.pendlum@ettus.com> Co-authored-by: Martin Braun <martin.braun@ettus.com> Co-authored-by: Matt Ettus <matt@ettus.com> Co-authored-by: Michael West <michael.west@ettus.com> Co-authored-by: Moritz Fischer <moritz.fischer@ettus.com> Co-authored-by: Nick Foster <nick@ettus.com> Co-authored-by: Nicolas Cuervo <nicolas.cuervo@ettus.com> Co-authored-by: Paul Butler <paul.butler@ni.com> Co-authored-by: Paul David <paul.david@ettus.com> Co-authored-by: Ryan Marlow <ryan.marlow@ettus.com> Co-authored-by: Sugandha Gupta <sugandha.gupta@ettus.com> Co-authored-by: Sylvain Munaut <tnt@246tNt.com> Co-authored-by: Trung Tran <trung.tran@ettus.com> Co-authored-by: Vidush Vishwanath <vidush.vishwanath@ettus.com> Co-authored-by: Wade Fife <wade.fife@ettus.com> Original-commit: bafa9d95453387814ef25e6b6256ba8db2df612f
2020-01-28 09:35:36 -08:00
parent 74893643ca
commit 6b67702ad7
2157 changed files with 1282567 additions and 0 deletions
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+Packaging FPGA (and other) images
+=================================
+
+Run `package_images.py` from the directory where the images are stored.
@@ -0,0 +1,334 @@
+#! /usr/bin/python
+
+import sys, os
+import collections
+import argparse
+import re
+
+#------------------------------------------------------------
+# Types
+#------------------------------------------------------------
+# Terminal definiion for each reference designator
+terminal_t = collections.namedtuple('terminal_t', 'name pin')
+# FPGA pin definiion
+fpga_pin_t = collections.namedtuple('fpga_pin_t', 'name loc iotype bank')
+
+# A (ref designator -> terminals) map
+# For each reference designator, this class maintains a list of all terminals
+# including names and pin locations. It also maintains a reverse mapping for all
+# terminal names to reference designator
+class terminal_db_t:
+    def __init__(self):
+        self.db = dict()
+        self.rev_db = dict()
+
+    def add(self, ref_des, net_name, pin_name):
+        if self.db.has_key(ref_des):
+            self.db[ref_des].append(terminal_t(net_name, pin_name))
+        else:
+            self.db[ref_des] = [terminal_t(net_name, pin_name)]
+        if self.rev_db.has_key(net_name):
+            self.rev_db[net_name].append(ref_des)
+        else:
+            self.rev_db[net_name] = [ref_des]
+
+    def get_terminals(self, ref_des):
+        return self.db[ref_des]
+
+    def lookup_endpoints(self, net_name):
+        return self.rev_db[net_name]
+
+# A (component -> properties) map
+# For each component, this class maintains all properties that are
+# listed in the RINF file
+class component_db_t:
+    def __init__(self):
+        self.db = dict()
+
+    def add_comp(self, ref_des, name):
+        self.db[ref_des] = {'Name':name}
+
+    def add_attr(self, ref_des, prop, value):
+        self.db[ref_des][prop] = value
+
+    def exists(self, comp_name):
+        return self.db.has_key(comp_name)
+
+    def lookup(self, comp_name):
+        return self.db[comp_name]
+
+    def attr_exists(self, comp_name, attr_name):
+        return self.exists(comp_name) and self.db[comp_name].has_key(attr_name)
+
+    def get_attr(self, comp_name, attr_name):
+        return self.db[comp_name][attr_name]
+
+# An FPGA (pin location -> properties) map
+# For each FPGA pin location, this class maintains a list of various pin properties
+# Also maintans all the IO Types to aid in filtering
+class fpga_pin_db_t:
+    def __init__(self, pkg_file, io_exclusions = []):
+        print 'INFO: Parsing Xilinx Package File ' + pkg_file + '...'
+        header = ['Pin','Pin Name','Memory Byte Group','Bank','VCCAUX Group','Super Logic Region','I/O Type','No-Connect']
+        self.pindb = dict()
+        self.iodb = set()
+        with open(pkg_file, 'r') as pkg_f:
+            for line in iter(pkg_f.readlines()):
+                tokens = collapse_tokens(line.strip().split('  '))
+                if len(tokens) == 8:
+                    if tokens != header:
+                        pin_info = dict()
+                        for col in range(1,len(header)):
+                            pin_info[header[col].strip()] = tokens[col].strip()
+                        self.pindb[tokens[0].strip()] = pin_info
+                        self.iodb.add(pin_info['I/O Type'])
+        if len(self.pindb.keys()) == 0 or len(self.iodb) == 0:
+            print 'ERROR: Could not parse Xilinx package file ' + pkg_file
+            sys.exit(1)
+
+        print 'INFO: * Found IO types: ' + ', '.join(self.iodb)
+        self.iodb.remove('NA')
+        for io in io_exclusions:
+            if io:
+                self.iodb.remove(io.rstrip().lstrip())
+        print 'INFO: * Using IO types: ' + ', '.join(self.iodb)
+
+    def iface_pins(self):
+        iface_pins = set()
+        for pin in self.pindb.keys():
+            if self.pindb[pin]['I/O Type'] in self.iodb:
+                iface_pins.add(pin)
+        return iface_pins
+
+    def is_iface_pin(self, pin):
+        return (self.pindb.has_key(pin)) and (self.pindb[pin]['I/O Type'] in self.iodb)
+
+    def get_pin_attr(self, pin, attr):
+        return self.pindb[pin][attr]
+
+#------------------------------------------------------------
+# Helper functions
+#------------------------------------------------------------
+
+# Parse command line options
+def get_options():
+    parser = argparse.ArgumentParser(description='Generate a template IO location XDC and Verilog stub from an RINF netlist and a Xilinx package file.')
+    parser.add_argument('--rinf', type=str, default=None, help='Input RINF netlist file (*.frs)')
+    parser.add_argument('--xil_pkg_file', type=str, default=None, help='Input Xilinx package pinout file (*.txt)')
+    parser.add_argument('--ref_des', type=str, default='U0', help='Reference designator for the FPGA')
+    parser.add_argument('--xdc_out', type=str, default='output.xdc', help='Output XDC file with location constraints')
+    parser.add_argument('--vstub_out', type=str, default=None, help='Output Verilog stub file with the portmap')
+    parser.add_argument('--exclude_io', type=str, default='MIO,DDR,CONFIG', help='Exlcude the specified FPGA IO types from consideration')
+    parser.add_argument('--suppress_warn', action='store_true', default=False, help='Suppress sanity check warnings')
+    parser.add_argument('--traverse_depth', type=int, default=1, help='How many linear components to traverse before finding a named net')
+    parser.add_argument('--fix_names', action='store_true', default=False, help='Fix net names when writing the XDC and Verilog')
+    args = parser.parse_args()
+    if not args.xil_pkg_file:
+        print 'ERROR: Please specify a Xilinx package file using the --xil_pkg_file option\n'
+        parser.print_help()
+        sys.exit(1)
+    if not args.rinf:
+        print 'ERROR: Please specify an input RINF file using the --rinf option\n'
+        parser.print_help()
+        sys.exit(1)
+    return args
+
+
+# Remove empty string from a token array
+def collapse_tokens(tokens):
+    retval = []
+    for tok in tokens:
+        tok = tok.rstrip().lstrip()
+        if tok:
+            retval.append(tok)
+    return retval
+
+# Parse user specified RINF file and return a terminal and component database
+def parse_rinf(rinf_path, suppress_warnings):
+    print 'INFO: Parsing RINF File ' + rinf_path + '...'
+    terminal_db = terminal_db_t()
+    component_db = component_db_t()
+    with open(rinf_path, 'r') as rinf_f:
+        net_name = '<UNDEF>'
+        state = '<UNDEF>'
+        line_num = 0
+        for line in iter(rinf_f.readlines()):
+            tokens = collapse_tokens(line.strip().split())
+            line_num = line_num + 1
+            if tokens:
+                if tokens[0].startswith('.'):
+                    # State transition
+                    state = tokens[0]
+                    if state == '.ADD_COM':
+                        component_db.add_comp(tokens[1], tokens[3])
+                    elif state == '.ATT_COM':
+                        component_db.add_attr(tokens[1], tokens[2].strip('"'), tokens[3].strip('"'))
+                    elif state == '.ADD_TER':
+                        net_name = tokens[3].strip('"')
+                        terminal_db.add(tokens[1], net_name, tokens[2])
+                    elif state == '.TER':
+                        terminal_db.add(tokens[1], net_name, tokens[2])
+                    elif state == '.END':
+                        break
+                else:
+                    # State continuation
+                    if state == '.TER':
+                        terminal_db.add(tokens[0], net_name, tokens[1])
+                    else:
+                        if not suppress_warnings:
+                            print 'WARNING: Ignoring line continuation for ' + state + ' at line ' + str(line_num)
+    return (terminal_db, component_db)
+
+# From all the FPGA pins filter out the ones
+# relevant for creating an XDC
+def filter_fpga_pins(ref_des, terminal_db, fpga_pin_db, max_level):
+    terminals = terminal_db.get_terminals(ref_des)
+    pins = dict()
+    # Loop through all the terminals of the FPGA
+    for fpga_term in terminals:
+        term = fpga_term
+        level = 0
+        # For each net check if there is a valid (non $XXXXXX) name
+        # If yes, use it. If not, then traverse one component down and check again
+        # If the next net has a valid name, use that. One requirement for this
+        # traversal is that the downstream components must form a linear network
+        # i.e. no branching. As soon as this algorithm sees a brach, it aborts.
+        while term and term.name.startswith('$') and level < max_level:
+            level = level + 1
+            comps = terminal_db.lookup_endpoints(term.name)
+            if len(comps) == 2: #Check for branch
+                next_comp = comps[1] if comps[0] == ref_des else comps[0]
+                sec_terms = terminal_db.get_terminals(next_comp)
+                if len(sec_terms) == 2: #Check for branch
+                    term = sec_terms[1] if sec_terms[0].name == term.name else sec_terms[0]
+                    break
+        # At this point we either found a valid net of we reached the max_depth
+        # Check again before approving this as a valid connection
+        if term.name and (not term.name.startswith('$')) and fpga_pin_db.is_iface_pin(fpga_term.pin):
+            iotype = fpga_pin_db.get_pin_attr(fpga_term.pin, 'I/O Type')
+            bank = fpga_pin_db.get_pin_attr(fpga_term.pin, 'Bank')
+            pins[term.name] = fpga_pin_t(term.name, fpga_term.pin, iotype, bank)
+    return pins
+
+# Fix net names.
+# This function lists all the valid substitutions to make to net names
+def fix_net_name(name):
+    return re.sub(r'[\W_]', '_', name)
+
+# Write an XDC file with sanity checks and readability enhancements
+def write_output_files(xdc_path, vstub_path, fpga_pins, fix_names):
+    # Figure out the max pin name length for human readable text alignment
+    max_pin_len = reduce(lambda x,y:max(x,y), map(len, fpga_pins.keys()))
+    # Create a bus database. Collapse multi-bit buses into single entries
+    bus_db = dict()
+    for pin in sorted(fpga_pins.keys()):
+        m = re.search('([a-zA-Z0-9_()]+)\(([0-9]+)\)', pin)
+        if m:
+            bus_name = m.group(1)
+            bit_num = int(m.group(2))
+            if bus_db.has_key(bus_name):
+                bus_db[bus_name].append(bit_num)
+            else:
+                bus_db[bus_name] = [bit_num]
+        else:
+                bus_db[pin] = []
+    # Walk through the bus database and write the XDC file
+    with open(xdc_path, 'w') as xdc_f:
+        print 'INFO: Writing template XDC ' + xdc_path + '...'
+        for bus in sorted(bus_db.keys()):
+            if not re.match("[a-zA-Z].[a-zA-Z0-9_]*$", bus):
+                print ('CRITICAL WARNING: Invalid net name (bad Verilog syntax): ' + bus +
+                    ('. Possibly fixed but please review.' if fix_names else '. Please review.'))
+            if bus_db[bus] == []:
+                xdc_pin = fix_net_name(bus.upper()) if fix_names else bus.upper()
+                xdc_loc = fpga_pins[bus].loc.upper().ljust(16)
+                xdc_iotype = fpga_pins[bus].iotype
+                xdc_iostd = ('<IOSTD_BANK' + fpga_pins[bus].bank + '>').ljust(16)
+                xdc_f.write('set_property PACKAGE_PIN   ' + xdc_loc + (' [get_ports {' + xdc_pin + '}]').ljust(max_pin_len+16) + '\n')
+                xdc_f.write('set_property IOSTANDARD    ' + xdc_iostd + ' [get_ports {' + xdc_pin + '}]\n')
+                xdc_f.write('\n')
+            else:
+                bits = sorted(bus_db[bus])
+                coherent = (bits == range(0, bits[-1]+1))
+                if not coherent:
+                    print 'CRITICAL WARNING: Incoherent bus: ' + bus + '. Some bits may be missing. Please review.'
+                for bit in bits:
+                    bus_full = bus + '(' + str(bit) + ')'
+                    xdc_pin = bus.upper() + '[' + str(bit) + ']'
+                    xdc_loc = fpga_pins[bus_full].loc.upper().ljust(16)
+                    xdc_iotype = fpga_pins[bus_full].iotype
+                    xdc_iostd = ('<IOSTD_BANK' + fpga_pins[bus_full].bank + '>').ljust(16)
+                    xdc_f.write('set_property PACKAGE_PIN   ' + xdc_loc + (' [get_ports {' + xdc_pin + '}]').ljust(max_pin_len+16) + '\n')
+                xdc_f.write('set_property IOSTANDARD    ' + xdc_iostd + ' [get_ports {' + bus.upper() + '[*]}]\n')
+                xdc_f.write('\n')
+    # Walk through the bus database and write a stub Verilog file
+    if vstub_path:
+        with open(vstub_path, 'w') as vstub_f:
+            print 'INFO: Writing Verilog stub ' + vstub_path + '...'
+            vstub_f.write('module ' + os.path.splitext(os.path.basename(vstub_path))[0] + ' (\n')
+            i = 1
+            for bus in sorted(bus_db.keys()):
+                port_name = fix_net_name(bus.upper()) if fix_names else bus.upper()
+                port_loc = fpga_pins[bus].loc.upper() if (bus_db[bus] == []) else '<Multiple>'
+                port_dir_short = raw_input('[' + str(i) + '/' + str(len(bus_db.keys())) +'] Direction for ' + port_name + ' (' + port_loc + ')? {[i]nput,[o]utput,[b]oth}: ').lower()
+                if port_dir_short.startswith('i'):
+                    port_dir = '  input '
+                elif port_dir_short.startswith('o'):
+                    port_dir = '  output'
+                else:
+                    port_dir = '  inout '
+
+                if bus_db[bus] == []:
+                    vstub_f.write(port_dir + '          ' + port_name + ',\n')
+                else:
+                    bus_def = str(sorted(bus_db[bus])[-1]) + ':0'
+                    vstub_f.write(port_dir + (' [' + bus_def + '] ').ljust(10) + port_name + ',\n')
+                i = i + 1
+            vstub_f.write(');\n\nendmodule')
+
+# Report unconnected pins
+def report_unconnected_pins(fpga_pins, fpga_pin_db):
+    print 'WARNING: The following pins were not connected. Please review.'
+    # Collect all the pin locations that have been used for constrain/stub creation
+    iface_pins = set()
+    for net in fpga_pins.keys():
+        iface_pins.add(fpga_pins[net].loc)
+    # Loop through all possible pins and check if we have missed any
+    for pin in sorted(fpga_pin_db.iface_pins()):
+        if pin not in iface_pins:
+            print (' * ' + pin.ljust(6) + ': ' +
+                   'Bank = ' + str(fpga_pin_db.get_pin_attr(pin, 'Bank')).ljust(6) +
+                   'IO Type = ' + str(fpga_pin_db.get_pin_attr(pin, 'I/O Type')).ljust(10) +
+                   'Name = ' + str(fpga_pin_db.get_pin_attr(pin, 'Pin Name')).ljust(10))
+
+#------------------------------------------------------------
+# Main
+#------------------------------------------------------------
+def main():
+    args = get_options();
+    # Build FPGA pin database using Xilinx package file
+    fpga_pin_db = fpga_pin_db_t(args.xil_pkg_file, args.exclude_io.split(','))
+    # Parse RINF netlist
+    (terminal_db, component_db) = parse_rinf(args.rinf, args.suppress_warn)
+    # Look for desired reference designator and print some info about it
+    print 'INFO: Resolving reference designator ' + args.ref_des + '...'
+    if not component_db.exists(args.ref_des):
+        print 'ERROR: Reference designator not found in the netlist'
+        sys.exit(1)
+    fpga_info = component_db.lookup(args.ref_des)
+    print 'INFO: * Name = ' + fpga_info['Name']
+    print 'INFO: * Description = ' + fpga_info['Description']
+    # Build a list of all FPGA interface pins in the netlist
+    fpga_pins = filter_fpga_pins(args.ref_des, terminal_db, fpga_pin_db, args.traverse_depth)
+    if not fpga_pins:
+        print 'ERROR: Could not cross-reference pins for ' + args.ref_des + ' with FPGA device. Are you sure it is an FPGA?'
+        sys.exit(1)
+    # Write output XDC and Verilog
+    write_output_files(args.xdc_out, args.vstub_out, fpga_pins, args.fix_names)
+    print 'INFO: Output file(s) generated successfully!'
+    # Generate a report of all unconnected pins
+    if not args.suppress_warn:
+        report_unconnected_pins(fpga_pins, fpga_pin_db)
+
+if __name__ == '__main__':
+    main()
@@ -0,0 +1,279 @@
+#!/usr/bin/env python3
+#
+# Copyright 2018 Ettus Research, a National Instruments Company
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+"""
+Container for the list of image package targets, and the information about them
+"""
+PACKAGE_MAPPING = {
+    "e310_sg1": {
+        "type": "e3xx",
+        "package_name": "e3xx_e310_sg1_fpga_default-g{}.zip",
+        "files": ['usrp_e310_sg1_fpga.bit',
+                  'usrp_e310_sg1_fpga.bit.md5',
+                  'usrp_e310_sg1_fpga.dts',
+                  'usrp_e310_sg1_fpga.dts.md5',
+                  'usrp_e310_sg1_fpga.rpt',
+                  'usrp_e310_sg1_idle_fpga.bit',
+                  'usrp_e310_sg1_idle_fpga.bit.md5',
+                  'usrp_e310_sg1_idle_fpga.dts',
+                  'usrp_e310_sg1_idle_fpga.dts.md5',
+                  'usrp_e310_sg1_idle_fpga.rpt']
+    },
+    "e310_sg3": {
+        "type": "e3xx",
+        "package_name": "e3xx_e310_sg3_fpga_default-g{}.zip",
+        "files": ['usrp_e310_sg3_fpga.bit',
+                  'usrp_e310_sg3_fpga.bit.md5',
+                  'usrp_e310_sg3_fpga.dts',
+                  'usrp_e310_sg3_fpga.dts.md5',
+                  'usrp_e310_sg3_fpga.rpt',
+                  'usrp_e310_sg3_idle_fpga.bit',
+                  'usrp_e310_sg3_idle_fpga.bit.md5',
+                  'usrp_e310_sg3_idle_fpga.dts',
+                  'usrp_e310_sg3_idle_fpga.dts.md5',
+                  'usrp_e310_sg3_idle_fpga.rpt']
+    },
+    "e320": {
+        "type": "e3xx",
+        "package_name": "e3xx_e320_fpga_default-g{}.zip",
+        "files": ['usrp_e320_fpga_1G.bit',
+                  'usrp_e320_fpga_1G.bit.md5',
+                  'usrp_e320_fpga_1G.dts',
+                  'usrp_e320_fpga_1G.dts.md5',
+                  'usrp_e320_fpga_1G.rpt',
+                  'usrp_e320_fpga_XG.bit',
+                  'usrp_e320_fpga_XG.bit.md5',
+                  'usrp_e320_fpga_XG.dts',
+                  'usrp_e320_fpga_XG.dts.md5',
+                  'usrp_e320_fpga_XG.rpt',
+                  'usrp_e320_fpga_AA.bit',
+                  'usrp_e320_fpga_AA.bit.md5',
+                  'usrp_e320_fpga_AA.dts',
+                  'usrp_e320_fpga_AA.dts.md5',
+                  'usrp_e320_fpga_AA.rpt']
+    },
+    "x300": {
+        "type": "x3xx",
+        "package_name": "x3xx_x300_fpga_default-g{}.zip",
+        "files": ["usrp_x300_fpga_HG.lvbitx",
+                  "usrp_x300_fpga_XG.lvbitx",
+                  "usrp_x300_fpga_HG.bit",
+                  "usrp_x300_fpga_HG.rpt",
+                  "usrp_x300_fpga_XG.bit",
+                  "usrp_x300_fpga_XG.rpt"]
+    },
+    "x310": {
+        "type": "x3xx",
+        "package_name": "x3xx_x310_fpga_default-g{}.zip",
+        "files": ["usrp_x310_fpga_HG.lvbitx",
+                  "usrp_x310_fpga_XG.lvbitx",
+                  "usrp_x310_fpga_HG.bit",
+                  "usrp_x310_fpga_HG.rpt",
+                  "usrp_x310_fpga_XG.bit",
+                  "usrp_x310_fpga_XG.rpt"]
+    },
+    "n310": {
+        "type": "n3xx",
+        "package_name": "n3xx_n310_fpga_default-g{}.zip",
+        "files": ['usrp_n310_fpga_HG.bit',
+                  'usrp_n310_fpga_HG.bit.md5',
+                  'usrp_n310_fpga_HG.dts',
+                  'usrp_n310_fpga_HG.dts.md5',
+                  'usrp_n310_fpga_HG.rpt',
+                  'usrp_n310_fpga_XG.bit',
+                  'usrp_n310_fpga_XG.bit.md5',
+                  'usrp_n310_fpga_XG.dts',
+                  'usrp_n310_fpga_XG.dts.md5',
+                  'usrp_n310_fpga_XG.rpt',
+                  'usrp_n310_fpga_WX.bit',
+                  'usrp_n310_fpga_WX.bit.md5',
+                  'usrp_n310_fpga_WX.dts',
+                  'usrp_n310_fpga_WX.dts.md5',
+                  'usrp_n310_fpga_WX.rpt',
+                  'usrp_n310_fpga_AA.bit',
+                  'usrp_n310_fpga_AA.bit.md5',
+                  'usrp_n310_fpga_AA.dts',
+                  'usrp_n310_fpga_AA.dts.md5',
+                  'usrp_n310_fpga_AA.rpt'],
+    },
+    "n300": {
+        "type": "n3xx",
+        "package_name": "n3xx_n300_fpga_default-g{}.zip",
+        "files": ['usrp_n300_fpga_HG.bit',
+                  'usrp_n300_fpga_HG.bit.md5',
+                  'usrp_n300_fpga_HG.dts',
+                  'usrp_n300_fpga_HG.dts.md5',
+                  'usrp_n300_fpga_HG.rpt',
+                  'usrp_n300_fpga_XG.bit',
+                  'usrp_n300_fpga_XG.bit.md5',
+                  'usrp_n300_fpga_XG.dts',
+                  'usrp_n300_fpga_XG.dts.md5',
+                  'usrp_n300_fpga_XG.rpt',
+                  'usrp_n300_fpga_WX.bit',
+                  'usrp_n300_fpga_WX.bit.md5',
+                  'usrp_n300_fpga_WX.dts',
+                  'usrp_n300_fpga_WX.dts.md5',
+                  'usrp_n300_fpga_WX.rpt',
+                  'usrp_n300_fpga_AA.bit',
+                  'usrp_n300_fpga_AA.bit.md5',
+                  'usrp_n300_fpga_AA.dts',
+                  'usrp_n300_fpga_AA.dts.md5',
+                  'usrp_n300_fpga_AA.rpt'],
+    },
+    "n320": {
+        "type": "n3xx",
+        "package_name": "n3xx_n320_fpga_default-g{}.zip",
+        "files": ['usrp_n320_fpga_HG.bit',
+                  'usrp_n320_fpga_HG.bit.md5',
+                  'usrp_n320_fpga_HG.dts',
+                  'usrp_n320_fpga_HG.dts.md5',
+                  'usrp_n320_fpga_HG.rpt',
+                  'usrp_n320_fpga_XG.bit',
+                  'usrp_n320_fpga_XG.bit.md5',
+                  'usrp_n320_fpga_XG.dts',
+                  'usrp_n320_fpga_XG.dts.md5',
+                  'usrp_n320_fpga_XG.rpt',
+                  'usrp_n320_fpga_XQ.bit',
+                  'usrp_n320_fpga_XQ.bit.md5',
+                  'usrp_n320_fpga_XQ.dts',
+                  'usrp_n320_fpga_XQ.dts.md5',
+                  'usrp_n320_fpga_XQ.rpt',
+                  'usrp_n320_fpga_WX.bit',
+                  'usrp_n320_fpga_WX.bit.md5',
+                  'usrp_n320_fpga_WX.dts',
+                  'usrp_n320_fpga_WX.dts.md5',
+                  'usrp_n320_fpga_WX.rpt',
+                  'usrp_n320_fpga_AQ.bit',
+                  'usrp_n320_fpga_AQ.bit.md5',
+                  'usrp_n320_fpga_AQ.dts',
+                  'usrp_n320_fpga_AQ.dts.md5',
+                  'usrp_n320_fpga_AQ.rpt',],
+    },
+    "n320_cpld": {
+        "type": "n3xx",
+        "package_name": "n3xx_n320_cpld_default-g{}.zip",
+        "files": ['usrp_n320_rh_cpld.svf']
+    },
+    "n310_cpld": {
+        "type": "n3xx",
+        "package_name": "n3xx_n310_cpld_default-g{}.zip",
+        "files": ['usrp_n310_mg_cpld.svf']
+    },
+    'n200': {
+        'type': 'usrp2',
+        'package_name': 'usrp2_n200_fpga_default-g{}.zip',
+        'files': ["usrp_n200_r2_fpga.bin",
+                  "usrp_n200_r3_fpga.bin",
+                  "usrp_n200_r4_fpga.bin",
+                  "bit/usrp_n200_r3_fpga.bit",
+                  "bit/usrp_n200_r4_fpga.bit"],
+    },
+    'n210': {
+        'type': 'usrp2',
+        'package_name': 'usrp2_n210_fpga_default-g{}.zip',
+        'files': ["usrp_n210_r2_fpga.bin",
+                  "usrp_n210_r3_fpga.bin",
+                  "usrp_n210_r4_fpga.bin",
+                  "bit/usrp_n210_r3_fpga.bit",
+                  "bit/usrp_n210_r4_fpga.bit"],
+    },
+    'n200_fw': {
+        'type': 'usrp2',
+        'package_name': 'usrp2_n200_fw_default-g{}.zip',
+        'files': ["usrp_n200_fw.bin"],
+    },
+    'n210_fw': {
+        'type': 'usrp2',
+        'package_name': 'usrp2_n210_fw_default-g{}.zip',
+        'files': ["usrp_n210_fw.bin"],
+    },
+    'usrp2': {
+        'type': 'usrp2',
+        'package_name': 'usrp2_usrp2_fpga_default-g{}.zip',
+        'files': ["usrp2_fpga.bin"],
+    },
+    'usrp2_fw': {
+        'type': 'usrp2',
+        'package_name': 'usrp2_usrp2_fw_default-g{}.zip',
+        'files': ["usrp2_fw.bin"],
+    },
+    'b200': {
+        'type': 'b2xx',
+        'package_name': 'b2xx_b200_fpga_default-g{}.zip',
+        'files': ["usrp_b200_fpga.bin"],
+    },
+    'b200mini': {
+        'type': 'b2xx',
+        'package_name': 'b2xx_b200mini_fpga_default-g{}.zip',
+        'files': ["usrp_b200mini_fpga.bin"],
+    },
+    'b205mini': {
+        'type': 'b2xx',
+        'package_name': 'b2xx_b205mini_fpga_default-g{}.zip',
+        'files': ["usrp_b205mini_fpga.bin"],
+    },
+    'b210': {
+        'type': 'b2xx',
+        'package_name': 'b2xx_b210_fpga_default-g{}.zip',
+        'files': ["usrp_b210_fpga.bin"],
+    },
+    'b2xx_fw': {
+        'type': 'b2xx',
+        'package_name': 'b2xx_common_fw_default-g{}.zip',
+        'files': ["usrp_b200_fw.hex",
+                  "usrp_b200_bl.img"],
+    },
+    'n230': {
+        'type': 'n230',
+        'package_name': 'n230_n230_fpga_default-g{}.zip',
+        'files': ["usrp_n230_fpga.bin",
+                  "usrp_n230_fpga.bit",
+                  "usrp_n230_fpga.rpt"],
+    },
+    'b100': {
+        'type': 'usrp1',
+        'package_name': 'usrp1_b100_fpga_default-g{}.zip',
+        'files': ["usrp_b100_fpga_2rx.bin",
+                  "usrp_b100_fpga.bin"],
+    },
+    'b100_fw': {
+        'type': 'usrp1',
+        'package_name': 'usrp1_b100_fw_default-g{}.zip',
+        'files': ["usrp_b100_fw.ihx"],
+    },
+    'usrp1': {
+        'type': 'usrp1',
+        'package_name': 'usrp1_usrp1_fpga_default-g{}.zip',
+        'files': ["usrp1_fpga_4rx.rbf",
+                  "usrp1_fpga.rbf",
+                  "usrp1_fw.ihx"],
+    },
+    'octoclock': {
+        'type': 'octoclock',
+        'package_name': 'octoclock_octoclock_fw_default-g{}.zip',
+        'files': ["octoclock_bootloader.hex",
+                  "octoclock_r4_fw.hex"],
+    },
+    'winusb_drv': {
+        'type': 'usb',
+        'package_name': 'usb_common_windrv_default-g{}.zip',
+        'files': ["winusb_driver/",
+                  "winusb_driver/erllc_uhd_b205mini.inf",
+                  "winusb_driver/erllc_uhd_b100.inf",
+                  "winusb_driver/erllc_uhd_b200_reinit.inf",
+                  "winusb_driver/erllc_uhd_b200mini.inf",
+                  "winusb_driver/erllc_uhd_b200.inf",
+                  "winusb_driver/amd64/",
+                  "winusb_driver/amd64/WdfCoInstaller01009.dll",
+                  "winusb_driver/amd64/winusbcoinstaller2.dll",
+                  "winusb_driver/x86/",
+                  "winusb_driver/x86/WdfCoInstaller01009.dll",
+                  "winusb_driver/x86/winusbcoinstaller2.dll",
+                  "winusb_driver/erllc_uhd_usrp1.inf",
+                  "winusb_driver/erllc_uhd_makecat.cdf",
+                  "winusb_driver/erllc_uhd.cat"],
+    },
+}
@@ -0,0 +1,369 @@
+#!/usr/bin/env python3
+#
+# Copyright 2018 Ettus Research, a National Instruments Company
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+"""
+Package image files into image archive packages
+
+Provides functions for packaging image files into image packages. Generate the intermediate files
+(like hash files), and create image archives from sets.
+"""
+from __future__ import print_function
+import argparse
+import copy
+import glob
+import hashlib
+import itertools
+import os
+import re
+import sys
+import tempfile
+import zipfile
+from image_package_mapping import PACKAGE_MAPPING
+
+
+def parse_args():
+    """Setup argument parser and parse"""
+    description = """UHD Image Packaging
+
+    Packages the contents of the current directory into archives within a directory structure that
+    matches the Ettus fileserver. It also produces files containing the MD5 checksums of all image
+    files, as well as a file containing the SHA256 checksums of all archive files created.
+
+    The script will also modify a manifest file with the information from the generated image
+    packages. That is, the repositories, Git hashes, and SHA256 checksums listed in the manifest
+    will be updated.
+
+    The script will run without any commandline arguments provided. However, some useful (crucial,
+    even) information will be lacking. The suggested usage is to invoke the following command from
+    the directory containing the image files
+
+    `python package_images.py --manifest /path/to/manifest --githash <REPO>-<GITHASH>`
+
+    where REPO is the repository used to create the images  (ie 'fpga'), and GITHASH is the Git
+    hash of that repository used to create the images. When in doubt, please check with previous
+    image package listed in the manifest.
+    """
+    parser = argparse.ArgumentParser(formatter_class=argparse.RawTextHelpFormatter,
+                                     description=description)
+    parser.add_argument('--md5', action="store_true", default=False,
+                        help="Generate MD5 files")
+    parser.add_argument('--sha256', action="store_true", default=False,
+                        help="Generate SHA256 files")
+    parser.add_argument('-f', '--files', type=str, default="",
+                        help="Comma separate list of files")
+    parser.add_argument('-o', '--output', type=str, default="",
+                        help="Output file to put the hashes in")
+    parser.add_argument('-m', '--manifest', type=str, default="",
+                        help="Update the manifest file at this path with the new SHAs")
+    parser.add_argument('-t', '--targets', type=str, default="",
+                        help="RegEx to select image sets from the manifest file.")
+    parser.add_argument('-g', '--githash', type=str, default="",
+                        help="Git hash directory name (eg. fpga-abc1234)")
+    return parser.parse_args()
+
+
+def gen_filelist(includes, excludes=None):
+    """
+    Generates a list of files, first generating
+    :param includes: [list of] expression[s] to include
+    :param excludes: [list of] expression[s] to exclude
+    :return: flat list of filenames
+    """
+    if isinstance(includes, str):
+        included = glob.glob(includes)
+    else:
+        included = list(itertools.chain(*[glob.iglob(filename) for filename in includes]))
+
+    if excludes is None:
+        excluded = []
+    elif isinstance(excludes, str):
+        excluded = glob.glob(excludes)
+    else:
+        excluded = list(itertools.chain(*[glob.iglob(filename) for filename in excludes]))
+    # Remove the excluded files from the include list
+    for filename in excluded:
+        if filename in included:
+            included.remove(filename)
+    return included
+
+
+def gen_md5(files_list, hash_filename=""):
+    """Generate the .md5 files for all input files"""
+    hashes = {}
+    for filename in files_list:
+        # Read and hash the input file
+        with open(filename, 'rb') as img_file:
+            md5_sum = hashlib.md5()
+            md5_sum.update(img_file.read())
+        # Write the hash to a *.md5 file
+        with open(filename + '.md5', 'w') as md5_file:
+            md5_hex = md5_sum.hexdigest()
+            newline = "{md5_hex}  {filename}\n".format(filename=filename, md5_hex=md5_hex)
+            md5_file.write(newline)
+            # Also store it to write to a file of all the hashes
+            hashes[filename] = md5_hex
+
+    # Write the MD5 hashes to file
+    with open(hash_filename, 'a') as hash_file:
+        for filename, md5_hex in hashes.items():
+            newline = "{md5_hex}  {filename}\n".format(filename=filename, md5_hex=md5_hex)
+            hash_file.write(newline)
+
+
+def gen_sha256(files_list, hash_filename=None, manifest_fn="", repo_and_hash=""):
+    """Generate the SHA256 files for all input file"""
+    # Input checking
+    if hash_filename is None:
+        hash_filename = "hashes.txt"
+    print("Generating SHA256 sums for:\n{}".format(
+        "\n".join("--{}".format(sha_fn) for sha_fn in files_list)))
+
+    # Make a dictionary to store the new SHA256 sums
+    sha256_dict = {}
+    with open(hash_filename, 'a') as hash_file:
+        for filename in files_list:
+            with open(filename, 'rb') as img_file:
+                sha256_sum = hashlib.sha256()
+                sha256_sum.update(img_file.read())
+                sha256_str = sha256_sum.hexdigest()
+                newline = "{sha_hex}  {filename}\n".format(filename=filename,
+                                                           sha_hex=sha256_str)
+                hash_file.write(newline)
+                # Add the sha256 to the dictionary
+                basename = os.path.basename(filename)
+                sha256_dict[basename] = sha256_str
+
+    # If there's a manifest file to edit, put the new information in
+    if os.path.isfile(manifest_fn):
+        edit_manifest(manifest_fn, repo_and_hash, sha256_dict)
+
+
+def gen_zip(zip_filename, files_list):
+    """Generate the zip file for a set of images"""
+    try:
+        with zipfile.ZipFile(zip_filename, 'w', zipfile.ZIP_DEFLATED) as zip_file:
+            for filename in files_list:
+                zip_file.write(filename)
+        return True
+    except Exception as ex:
+        print("Caught exception in gen_zip: {}".format(ex))
+        return False
+
+
+def do_gen_package(pkg_target, install_dir="", repo_and_hash=""):
+    """Generate the entire N3XX image package, from the start to the end"""
+    print("---Generating package for {}---".format(pkg_target))
+    filelist = PACKAGE_MAPPING[pkg_target]['files']
+    print("Required files:\n{}".format(
+        "\n".join("--{}".format(img_fn) for img_fn in filelist)))
+    md5_files = gen_filelist(includes=filelist, excludes=["*.rpt", "*.md5"])
+    print("Files to md5sum:\n{}".format(
+        "\n".join("--{}".format(md5_fn) for md5_fn in md5_files)))
+    gen_md5(md5_files, "md5_hashes.txt")
+
+    # Determine the current Git hash (w/o the repository)
+    githash_l = re.findall(r"[\d\w]+-([\d\w]{7,8})", repo_and_hash)
+    githash = githash_l[0] if githash_l else ""
+
+    zip_files = gen_filelist(includes=filelist)
+    zip_filename = os.path.join(install_dir, PACKAGE_MAPPING[pkg_target]['package_name'])\
+        .format(githash)
+    print("Files to zip:\n{}".format(
+        "\n".join("--{}".format(zip_fn) for zip_fn in zip_files)))
+    if not gen_zip(zip_filename, zip_files):
+        zip_filename = ""
+    return zip_filename
+
+
+def gen_package(pkg_targets=(), repo_and_hash="", manifest_fn=""):
+    """Generate the entire image package, and place it in the proper directory structure"""
+    # Make the cache/ directory if necessary
+    cache_path = os.path.join(os.getcwd(), "cache")
+    if not os.path.isdir(cache_path):
+        os.mkdir(cache_path)
+
+    sha_filenames = []
+    for pkg_target in pkg_targets:
+        if pkg_target in PACKAGE_MAPPING:
+            # Make the type directory
+            pkg_type = PACKAGE_MAPPING[pkg_target]["type"]
+            type_path = os.path.join(cache_path, pkg_type)
+            if not os.path.isdir(type_path):
+                os.mkdir(type_path)
+            # Make the 'repository-hash' directory
+            if not repo_and_hash:
+                repo_and_hash = "repo-githash"
+            git_path = os.path.join(type_path, repo_and_hash)
+            if not os.path.isdir(git_path):
+                os.mkdir(git_path)
+
+            # Generate the package and add the the zip filename to the SHA list
+            sha_filenames.append(do_gen_package(pkg_target,
+                                                install_dir=git_path,
+                                                repo_and_hash=repo_and_hash))
+        else:
+            print("Error: Specify a supported type from {}".format(
+                list(PACKAGE_MAPPING.keys())))
+    sha_filenames[:] = [sha_fn for sha_fn in sha_filenames if os.path.exists(sha_fn)]
+    gen_sha256(sha_filenames, hash_filename="hashes.txt",
+               manifest_fn=manifest_fn, repo_and_hash=repo_and_hash)
+    # Return the zipfiles we've created
+    return sha_filenames
+
+
+def list_differences(list1, list2):
+    """Returns two lists containing the unique elements of each input list"""
+    outlist1 = []
+    outlist2 = []
+    outlist1[:] = [elem for elem in list1 if elem not in list2]
+    outlist2[:] = [elem for elem in list2 if elem not in list1]
+    return outlist1, outlist2
+
+
+def get_target_name(zip_filename):
+    """Return the package target that created the given zip_filename"""
+    for target, target_info in PACKAGE_MAPPING.items():
+        # First we need to strip the Git hash out of the filename
+        githash = re.findall(r"-g([\d\w]{7,8})", zip_filename)[0]
+        stripped_filename = os.path.basename(zip_filename.replace(githash, "{}"))
+        if stripped_filename == target_info.get("package_name", ""):
+            return target
+    # If it doesn't match any targets
+    return ""
+
+
+def verify_package(zip_filename):
+    """Verify the contents of the image package match the expected list of files"""
+    # First, determine which target this was built for
+    pkg_target = get_target_name(os.path.split(zip_filename)[1])
+    if not pkg_target:
+        print("Error: Could not determine package from filename {}"
+              .format(zip_filename), file=sys.stderr)
+        return False
+
+    expected_filelist = PACKAGE_MAPPING[pkg_target]['files']
+    with zipfile.ZipFile(zip_filename, 'r') as zip_file:
+        actual_filelist = zip_file.namelist()
+
+    missing, extra = list_differences(expected_filelist, actual_filelist)
+    if missing or extra:
+        print("Error: image package does not include expected files ({})".format(pkg_target),
+              file=sys.stderr)
+        if missing:
+            print("Missing files: {}".format(missing), file=sys.stderr)
+        if extra:
+            print("Extra files: {}".format(extra), file=sys.stderr)
+        return False
+    return True
+
+
+def edit_manifest_line(line, new_repo_and_hash, new_hashes_dict):
+    """Edit the line in the manifest to (maybe) include the new repo, git hash, and SHA"""
+    # Check each value in your dictionary of new hashes
+    for filename, new_hash in new_hashes_dict.items():
+        # If the filename with a new hash shows up in the line
+        # Note: the filename has a Git hash in it, so we need to peel that off first
+        full_filename_matches = re.findall(r"([\d\w]+)-g([\da-fA-F]{7,8})", filename)
+        if full_filename_matches:
+            # We don't really need to store the Git hash in the found filename
+            stripped_filename, _ = full_filename_matches[0]
+        else:
+            return line
+
+        if stripped_filename in line:
+            # Replace the repo and git hash
+            old_repo_and_hash_matches = re.findall(r"([\w]+)-([\da-fA-F]{7,8})", line)
+            if old_repo_and_hash_matches:
+                # If we did find a repo and Git hash on this line, replace them
+                old_repo, old_githash = old_repo_and_hash_matches[0]
+                old_repo_and_hash = "{}-{}".format(old_repo, old_githash)
+                # We need to replace all instances <REPO>-<GITHASH> in this line
+                line = line.replace(old_repo_and_hash, new_repo_and_hash)
+                # We also need to replace -g<GITHASH> in the filename
+                # Find the new repo and githash
+                _, new_githash = re.findall(r"([\w]+)-([\da-fA-F]{7,8})", new_repo_and_hash)[0]
+                line = line.replace(old_githash, new_githash)
+
+            # Replace the SHA256
+            sha = re.findall(r"[\da-fA-F]{64}", line)
+            if sha:
+                sha = sha[0]
+                line = line.replace(sha, new_hash)
+
+            if not old_repo_and_hash_matches or not sha:
+                print("Error: repo, hash or SHA missing in line with new file")
+                print("Line: {}", format(line))
+            # If we found and replaced info, return the edited line
+            return line
+    # If we never edit the line, just return it
+    return line
+
+
+def edit_manifest(manifest_fn, new_repo_and_hash, new_hash_dict):
+    """Edit the provided manifest file to update the githash and SHA256"""
+    with tempfile.NamedTemporaryFile(mode='w', dir='.', delete=False) as tmp_manifest, \
+            open(manifest_fn, 'r') as old_manifest:
+        print("Trying to edit manifest with new repo and Git hash {}".format(new_repo_and_hash))
+        # Check each line in the manifest file
+        for line in old_manifest:
+            # If needed, put the new info in the line
+            line = edit_manifest_line(line, new_repo_and_hash, new_hash_dict)
+            # Always write the line back
+            tmp_manifest.write(line)
+    # Replace the manifest file with our temporary file that we created
+    os.rename(tmp_manifest.name, manifest_fn)
+
+
+def determine_targets():
+    """
+    Determine which image packages can be created by the files in the current directory
+    :return: list of valid targets
+    """
+    found_targets = []
+    for target, target_info in PACKAGE_MAPPING.items():
+        # Grab the list of files required, but remove any files that we're going to build here,
+        # like the hash files
+        required_files = copy.deepcopy(target_info['files'])
+        required_files[:] = [filename for filename in required_files if '.md5' not in filename]
+
+        check_required_files = [os.path.exists(img_file) for img_file in required_files]
+        if all(check_required_files):
+            found_targets.append(target)
+        elif any(check_required_files):
+            print("Not all package contents present for {}".format(target),
+                  file=sys.stderr)
+    return found_targets
+
+
+def main():
+    """Generate image packages using commandline arguments"""
+    args = parse_args()
+    if args.md5 or args.sha256 or args.files or args.output:
+        print("Unsupported argument: only --pkg_targets is currently supported.")
+    # Check the provided Git hash
+    if not args.githash:
+        print("Please provide --githash `<REPO>-<GITHASH>'")
+        return False
+    elif not re.findall(r"[\d\w]+-[\d\w]{7,8}", args.githash):
+        print("--githash does not match expected form. Should be `<REPO>-<GITHASH>'")
+        return False
+
+    if args.targets:
+        pkg_targets = [ss.strip() for ss in args.targets.split(',')]
+    else:
+        pkg_targets = determine_targets()
+        print("Targets to package:\n{}".format(
+            "\n".join("--{}".format(pkg) for pkg in pkg_targets)))
+
+    zip_filenames = gen_package(pkg_targets=pkg_targets,
+                                repo_and_hash=args.githash,
+                                manifest_fn=args.manifest)
+    check_zips = [verify_package(zip_filename) for zip_filename in zip_filenames]
+    return all(check_zips)
+
+
+if __name__ == "__main__":
+    sys.exit(not main())
@@ -0,0 +1 @@
+*.pyc
@@ -0,0 +1,6 @@
+Dependencies:
+- python2
+- graphviz
+- python-graphviz
+- python-numpy
+- python-matplotlib
@@ -0,0 +1,593 @@
+#!/usr/bin/env python
+#
+# Copyright 2016 Ettus Research
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+import rfnocsim
+import math
+import ni_hw_models as hw
+
+class ColGlobals():
+    BPI = 4             # Number of bytes per sample or coefficient
+    BPP = 1024          # Bytes per packet
+    MIN_SAMP_HOPS = 1   # Minimum number of hops an RX sample will take before it is used to compute a PP
+    MAX_SAMP_HOPS = 3   # Maximum number of hops an RX sample will take before it is used to compute a PP
+    MIN_PP_HOPS = 0     # Minimum number of hops a PP will take before it is used to compute a TX sample
+    MAX_PP_HOPS = 1     # Maximum number of hops a PP will take before it is used to compute a TX sample
+    ELASTIC_BUFF_FULLNESS = 0.5
+
+class PartialContribComputer(rfnocsim.Function):
+    """
+    Simulation model for function that computes the contribution of radio chans on other radio chans.
+    This function computes a NxM dot product of FFTs, one bin at a time.
+    Features:
+        - Supports computing the product in multiple cycles (for resource reuse)
+        - Supports deinterleaving data in streams (i.e. is Radio 0+1 data comes in thru the same ethernet)
+
+    Args:
+        sim_core: Simulator core object
+        name: Name of this function
+        size: Number of chans (inputs) for which contribution partial products are computed
+        fft_size: The length of the FFT in bins
+        dst_chans: Computes the contribution of the input chans on these dst_chans
+        items_per_stream: How many channels per stream can this function deinterleave?
+        ticks_per_exec: How many ticks for the function to generate a full output set
+    """
+    def __init__(self, sim_core, name, size, dst_chans, items_per_stream, app_settings):
+        ticks_per_exec = 1      # This function will run once every tick. No multi-cycle paths here.
+        rfnocsim.Function.__init__(self, sim_core, name, size, int(len(dst_chans)/items_per_stream), ticks_per_exec)
+        self.items_per_stream = items_per_stream  # Each stream contains data from n radio chans
+        self.dst_chans = dst_chans              # Where should the individual products go?
+        # This block has to buffer enough data to ensure
+        # sample alignment. How deep should those buffers be?
+        sync_buff_depth = (((ColGlobals.MAX_SAMP_HOPS - ColGlobals.MIN_SAMP_HOPS) *
+            hw.Bee7Fpga.IO_LN_LATENCY * float(app_settings['samp_rate'])) / ColGlobals.ELASTIC_BUFF_FULLNESS)
+
+        # Adder latency: log2(radix) adder stages + 2 pipeline flops
+        latency = math.ceil(math.log(size/len(dst_chans), 2)) + 2
+        # Synchronization latency based on buffer size
+        latency += (sync_buff_depth * ColGlobals.ELASTIC_BUFF_FULLNESS) * (self.get_tick_rate() / float(app_settings['samp_rate']))
+        # Packet alignment latency
+        latency += ColGlobals.BPP * (self.get_tick_rate() / hw.Bee7Fpga.IO_LN_BW)
+        self.estimate_resources(size*items_per_stream, len(dst_chans), app_settings, sync_buff_depth*size, latency)
+
+    def estimate_resources(self, N, M, app_settings, sync_buff_total_samps, pre_filt_latency):
+        rscrs = rfnocsim.HwRsrcs()
+
+        DSP_BLOCKS_PER_MAC = 3      # DSP blocks for a scaled complex MAC
+        MAX_DSP_RATE = 400e6        # Max clock rate for a DSP48E block
+        MAX_UNROLL_DEPTH = 2        # How many taps (or FFT bins) to compute in parallel?
+        COEFF_SETS = 1              # We need two copies of coefficients one live
+                                    # and one buffered for dynamic reload. If both
+                                    # live in BRAM, this should be 2. If the live
+                                    # set lives in registers, this should be 1
+
+        samp_rate = float(app_settings['samp_rate'])
+        dsp_cyc_per_samp = MAX_DSP_RATE / samp_rate
+
+        if app_settings['domain'] == 'time':
+            fir_taps = app_settings['fir_taps']
+            if (fir_taps <= dsp_cyc_per_samp):
+                unroll_factor = 1
+                dsp_rate = samp_rate * fir_taps
+            else:
+                unroll_factor = math.ceil((1.0 * fir_taps) / dsp_cyc_per_samp)
+                dsp_rate = MAX_DSP_RATE
+                if (unroll_factor > MAX_UNROLL_DEPTH):
+                    raise self.SimCompError('Too many FIR coefficients! Reached loop unroll limit.')
+
+            rscrs.add('DSP', DSP_BLOCKS_PER_MAC * unroll_factor * N * M)
+            rscrs.add('BRAM_18kb', math.ceil(ColGlobals.BPI * app_settings['fir_dly_line'] / hw.Bee7Fpga.BRAM_BYTES) * N * M) # FIR delay line memory
+            rscrs.add('BRAM_18kb', math.ceil(ColGlobals.BPI * COEFF_SETS * fir_taps * unroll_factor * N * M / hw.Bee7Fpga.BRAM_BYTES))   # Coefficient storage
+
+            samp_per_tick = dsp_rate / self.get_tick_rate()
+            self.update_latency(func=pre_filt_latency + (fir_taps / (samp_per_tick * unroll_factor)))
+        else:
+            fft_size = app_settings['fft_size']
+            rscrs.add('DSP', DSP_BLOCKS_PER_MAC * N * M * MAX_UNROLL_DEPTH) # MACs
+            rscrs.add('BRAM_18kb', math.ceil(ColGlobals.BPI * N * M * fft_size * COEFF_SETS / hw.Bee7Fpga.BRAM_BYTES)) # Coeff storage
+
+            samp_per_tick = MAX_DSP_RATE / self.get_tick_rate()
+            self.update_latency(func=pre_filt_latency + (fft_size / samp_per_tick))
+
+        rscrs.add('BRAM_18kb', math.ceil(ColGlobals.BPI * sync_buff_total_samps / hw.Bee7Fpga.BRAM_BYTES))
+        self.update_rsrcs(rscrs)
+
+    def do_func(self, in_data):
+        """
+        Gather FFT data from "size" channels, compute a dot product with the coeffieicnt
+        matrix and spit the partial products out. The dot product is computed for each
+        FFT bin serially.
+        """
+        out_data = list()
+        src_chans = []
+        # Iterate over each input
+        for di in in_data:
+            if len(di.items) != self.items_per_stream:
+                raise RuntimeError('Incorrect items per stream. Expecting ' + str(self.items_per_stream))
+            # Deinterleave data
+            for do in range(len(di.items)):
+                (sid, coords) = rfnocsim.DataStream.submatrix_parse(di.items[do])
+                if sid != 'rx':
+                    raise RuntimeError('Incorrect items. Expecting radio data (rx) but got ' + sid)
+                src_chans.extend(coords[0])
+        bpi = in_data[0].bpi
+        count = in_data[0].count
+        # Iterate through deinterleaved channels
+        for i in range(0, len(self.dst_chans), self.items_per_stream):
+            items = []
+            for j in range(self.items_per_stream):
+                # Compute partial products:
+                # pp = partial product of "src_chans" on "self.dst_chans[i+j]"
+                items.append(rfnocsim.DataStream.submatrix_gen('pp', [src_chans, self.dst_chans[i+j]]))
+            out_data.append(self.create_outdata_stream(bpi, items, count))
+        return out_data
+
+class PartialContribCombiner(rfnocsim.Function):
+    """
+    Simulation model for function that adds multiple partial contributions (products) into a larger
+    partial product. The combiner can optionally reduce a very large product into a smaller one.
+    Ex: pp[31:0,i] (contribution on chan 0..31 on i) can alias to tx[i] if there are 32 channels.
+
+    Args:
+        sim_core: Simulator core object
+        name: Name of this function
+        radix: Number of partial products that are combined (Number of inputs)
+        reducer_filter: A tuple that represents what pp channels to alias to what
+        items_per_stream: How many channels per stream can this function deinterleave?
+    """
+
+    def __init__(self, sim_core, name, radix, app_settings, reducer_filter = (None, None), items_per_stream = 2):
+        rfnocsim.Function.__init__(self, sim_core, name, radix, 1)
+        self.radix = radix
+        self.reducer_filter = reducer_filter
+        self.items_per_stream = items_per_stream
+
+        # This block has to buffer enough data to ensure
+        # sample alignment. How deep should those buffers be?
+        sync_buff_depth = (((ColGlobals.MAX_PP_HOPS - ColGlobals.MIN_PP_HOPS) *
+            hw.Bee7Fpga.IO_LN_LATENCY * float(app_settings['samp_rate'])) / ColGlobals.ELASTIC_BUFF_FULLNESS)
+        # Figure out latency based on sync buffer and delay line
+        latency = math.ceil(math.log(radix, 2)) + 2     # log2(radix) adder stages + 2 pipeline flops
+        # Synchronization latency based on buffer size
+        latency += (sync_buff_depth * ColGlobals.ELASTIC_BUFF_FULLNESS) * (self.get_tick_rate() / float(app_settings['samp_rate']))
+        # Packet alignment latency
+        latency += ColGlobals.BPP * (self.get_tick_rate() / hw.Bee7Fpga.IO_LN_BW)
+
+        self.update_latency(func=latency)
+        self.estimate_resources(radix, sync_buff_depth)
+
+    def estimate_resources(self, radix, sync_buff_depth):
+        rscrs = rfnocsim.HwRsrcs()
+        # Assume that pipelined adders are inferred in logic (not DSP)
+        # Assume that buffering uses BRAM
+        rscrs.add('BRAM_18kb', math.ceil(ColGlobals.BPI * sync_buff_depth * radix / hw.Bee7Fpga.BRAM_BYTES))
+        self.update_rsrcs(rscrs)
+
+    def do_func(self, in_data):
+        """
+        Gather partial dot products from inputs, add them together and spit them out
+        Perform sanity check to ensure that we are adding the correct things
+        """
+        out_chans = dict()
+        # Iterate over each input
+        for di in in_data:
+            if len(di.items) != self.items_per_stream:
+                raise self.SimCompError('Incorrect items per stream. Expecting ' + str(self.items_per_stream))
+            # Deinterleave data
+            for do in range(len(di.items)):
+                (sid, coords) = rfnocsim.DataStream.submatrix_parse(di.items[do])
+                if sid == 'null':
+                    continue
+                elif sid != 'pp':
+                    raise self.SimCompError('Incorrect items. Expecting partial produts (pp) but got ' + sid)
+                if len(coords[1]) != 1:
+                    raise self.SimCompError('Incorrect partial product. Target must be a single channel')
+                if coords[1][0] in out_chans:
+                    out_chans[coords[1][0]].extend(coords[0])
+                else:
+                    out_chans[coords[1][0]] = coords[0]
+        # Check if keys (targets) for partial products == items_per_stream
+        if len(list(out_chans.keys())) != self.items_per_stream:
+            raise self.SimCompError('Inconsistent partial products. Too many targets.')
+        # Verify that all influencers for each target are consistent
+        if not all(x == list(out_chans.values())[0] for x in list(out_chans.values())):
+            raise self.SimCompError('Inconsistent partial products. Influencers dont match.')
+        contrib_chans = list(out_chans.values())[0]
+        # Combine partial products and return
+        out_items = []
+        for ch in list(out_chans.keys()):
+            if sorted(self.reducer_filter[0]) == sorted(contrib_chans):
+                out_items.append(rfnocsim.DataStream.submatrix_gen(self.reducer_filter[1], [ch]))
+            else:
+                out_items.append(rfnocsim.DataStream.submatrix_gen('pp', [list(out_chans.values())[0], ch]))
+        return self.create_outdata_stream(in_data[0].bpi, out_items, in_data[0].count)
+
+# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+# NOTE: The Torus Topology has not been maintained. Use at your own risk
+# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+class Topology_2D_4x4_Torus:
+    @classmethod
+    def config_bitstream(cls, bee7fpga, app_settings, in_chans, out_chans, total_num_chans, is_radio_node):
+        if len(in_chans) != 64:
+            raise bee7fpga.SimCompError('in_chans must be 64 channels wide. Got ' + str(len(in_chans)))
+        if len(out_chans) != 16:
+            raise bee7fpga.SimCompError('out_chans must be 16 channels wide. Got ' + str(len(out_chans)))
+        GRP_LEN = 16 / 2   # 2 radio channesl per USRP
+
+        # Broadcast raw data streams to all internal and external FPGAs
+        for i in range(GRP_LEN):
+            in_ln = bee7fpga.EXT_IO_LANES[bee7fpga.BP_BASE+i]
+            bee7fpga.sim_core.connect(bee7fpga.serdes_i[in_ln], 0, bee7fpga.serdes_o[bee7fpga.EW_IO_LANES[i]], 0)
+            bee7fpga.sim_core.connect(bee7fpga.serdes_i[in_ln], 0, bee7fpga.serdes_o[bee7fpga.NS_IO_LANES[i]], 0)
+            bee7fpga.sim_core.connect(bee7fpga.serdes_i[in_ln], 0, bee7fpga.serdes_o[bee7fpga.XX_IO_LANES[i]], 0)
+            bee7fpga.sim_core.connect(bee7fpga.serdes_i[in_ln], 0, bee7fpga.serdes_o[bee7fpga.EXT_IO_LANES[bee7fpga.BP_BASE+8+i]], 0)
+        # Create an internal bus to hold the generated partial products
+        bee7fpga.pp_bus = dict()
+        for i in range(GRP_LEN):
+            bee7fpga.pp_bus[i] = rfnocsim.Channel(bee7fpga.sim_core, '%s/_INTERNAL_PP_%02d' % (bee7fpga.name,i))
+        # We need to compute partial products of the data that is broadcast to us
+        # pp_input_lanes represents the IO lanes that hold this data
+        pp_input_lanes = bee7fpga.EXT_IO_LANES[bee7fpga.BP_BASE:bee7fpga.BP_BASE+GRP_LEN] + \
+            bee7fpga.EW_IO_LANES[0:GRP_LEN] + bee7fpga.NS_IO_LANES[0:GRP_LEN] + bee7fpga.XX_IO_LANES[0:GRP_LEN]
+        # The function that computes the partial products
+        func = PartialContribComputer(
+            sim_core=bee7fpga.sim_core, name=bee7fpga.name + '/pp_computer/', size=len(pp_input_lanes),
+            dst_chans=out_chans,
+            items_per_stream=2, app_settings=app_settings)
+        for i in range(len(pp_input_lanes)):
+            bee7fpga.sim_core.connect(bee7fpga.serdes_i[pp_input_lanes[i]], 0, func, i)
+        for i in range(GRP_LEN): #Outputs of function
+            bee7fpga.sim_core.connect(func, i, bee7fpga.pp_bus[i], 0)
+        bee7fpga.add_function(func)
+        # Add a function combine all partial products (one per IO lane)
+        for i in range(GRP_LEN):
+            func = PartialContribCombiner(
+                sim_core=bee7fpga.sim_core, name=bee7fpga.name + '/pp_combiner_%d/' % (i),
+                radix=2, app_settings=app_settings, reducer_filter=(list(range(total_num_chans)), 'tx'))
+            # Partial products generated internally have to be added to a partial
+            # sum coming from outside
+            bee7fpga.sim_core.connect(bee7fpga.serdes_i[bee7fpga.EXT_IO_LANES[bee7fpga.FP_BASE+i]], 0, func, 0)
+            bee7fpga.sim_core.connect(bee7fpga.pp_bus[i], 0, func, 1)
+            # If this FPGA is hooked up to the radio then send partial products
+            # back to when samples came from. Otherwise send it out to the PP output bus
+            if is_radio_node:
+                bee7fpga.sim_core.connect(func, 0, bee7fpga.serdes_o[bee7fpga.EXT_IO_LANES[bee7fpga.BP_BASE+i]], 0)
+            else:
+                bee7fpga.sim_core.connect(func, 0, bee7fpga.serdes_o[bee7fpga.EXT_IO_LANES[bee7fpga.FP_BASE+8+i]], 0)
+            bee7fpga.add_function(func)
+
+    @classmethod
+    def connect(cls, sim_core, usrps, bee7blades, hosts, app_settings):
+        USRPS_PER_BLADE = 32
+
+        # Create NULL source of "zero" partial products
+        null_items = ['null[(0);(0)]', 'null[(0);(0)]']
+        null_src = rfnocsim.Producer(sim_core, 'NULL_SRC', 4, null_items)
+        if app_settings['domain'] == 'frequency':
+            null_src.set_rate(app_settings['samp_rate']*(1.0 +
+                (float(app_settings['fft_overlap'])/app_settings['fft_size'])))
+        else:
+            null_src.set_rate(app_settings['samp_rate'])
+
+        # Reshape BEE7s
+        # The blades are arranged in 2D Torus network with 4 blades across
+        # each dimension (4x4 = 16)
+        bee7grid = []
+        for r in range(4):
+            bee7row = []
+            for c in range(4):
+                blade = bee7blades[4*r + c]
+                pp_chans = list(range(64*c,64*(c+1)))
+                for i in range(4):
+                    Topology_2D_4x4_Torus.config_bitstream(
+                        blade.fpgas[i], app_settings, pp_chans, pp_chans[i*16:(i+1)*16], 256, (r==c))
+                bee7row.append(blade)
+            bee7grid.append(bee7row)
+
+        # USRP-Bee7 Connections
+        # Blades across the diagonal are connected to USRPs
+        for b in range(4):
+            for u in range(USRPS_PER_BLADE):
+                sim_core.connect_bidir(
+                    usrps[USRPS_PER_BLADE*b + u], 0, bee7grid[b][b],
+                    len(hw.Bee7Fpga.EXT_IO_LANES)*(u/8) + hw.Bee7Fpga.BP_BASE+(u%8), 'SAMP')
+            sim_core.connect_bidir(
+                hosts[b], 0, bee7grid[b][b], hw.Bee7Fpga.FP_BASE+8, 'CONFIG', ['blue','blue'])
+
+        # Bee7-Bee7 Connections
+        null_srcs = []
+        for r in range(4):      # Traverse across row
+            for c in range(4):  # Traverse across col
+                for f in range(4):
+                    samp_in_base = len(hw.Bee7Fpga.EXT_IO_LANES)*f + hw.Bee7Fpga.BP_BASE
+                    samp_out_base = len(hw.Bee7Fpga.EXT_IO_LANES)*f + hw.Bee7Fpga.BP_BASE+8
+                    pp_in_base = len(hw.Bee7Fpga.EXT_IO_LANES)*f + hw.Bee7Fpga.FP_BASE
+                    pp_out_base = len(hw.Bee7Fpga.EXT_IO_LANES)*f + hw.Bee7Fpga.FP_BASE+8
+                    if r != c:
+                        sim_core.connect_multi_bidir(
+                            bee7grid[r][(c+3)%4], list(range(samp_out_base,samp_out_base+8)),
+                            bee7grid[r][c], list(range(samp_in_base,samp_in_base+8)),
+                            'SAMP_O2I', ['black','blue'])
+                        sim_core.connect_multi_bidir(
+                            bee7grid[r][c], list(range(pp_out_base,pp_out_base+8)),
+                            bee7grid[(r+1)%4][c], list(range(pp_in_base,pp_in_base+8)),
+                            'PP_O2I', ['black','blue'])
+                    else:
+                        for i in range(8):
+                            sim_core.connect(null_src, 0, bee7grid[(r+1)%4][c], pp_in_base + i)
+
+class Topology_3D_4x4_FLB:
+    @classmethod
+    def get_radio_num(cls, router_addr, radio_idx, concentration):
+        """
+        Returns the global radio index given local radio info
+
+        (global_radio_idx) = get_radio_num(router_addr, radio_idx, concentration) where:
+        - router_addr: Address of the current FPGA (router) in 3-D space
+        - radio_idx: The local index of the radio for the current router_addr
+        - concentration: Number of USRPs connected to each router
+        """
+        DIM_SIZE = 4
+        multiplier = concentration
+        radio_num = 0
+        for dim in ['Z','Y','X']:
+            radio_num += router_addr[dim] * multiplier
+            multiplier *= DIM_SIZE
+        return radio_num + radio_idx
+
+    @classmethod
+    def get_portmap(cls, node_addr):
+        """
+        Returns the router and terminal connections for the current FPGA
+
+        (router_map, terminal_map) = get_portmap(node_addr) where:
+        - node_addr: Address of the current FPGA in 3-D space
+        - router_map: A double map indexed by the dimension {X,Y,Z} and the
+                      FPGA address in that dimension that returns the Aurora
+                      lane index that connects the current node to the neighbor.
+                      Example: if node_addr = [0,0,0] then router_map['X'][1] will
+                      hold the IO lane index that connects the current node with
+                      its X-axis neighbor with address 1
+        - terminal_map: A single map that maps a dimension {X,Y,Z} to the starting
+                        IO lane index for terminals (like USRPs) in that dimension.
+                        A terminal is a leaf node in the network.
+        """
+        router_map = dict()
+        terminal_map = dict()
+        # If "node_addr" is the address of the current FPGA in the (X,Y,Z) space,
+        # then build a list of other addresses (neighbors) in each dimension
+        DIM_SIZE = 4
+        for dim in ['X','Y','Z']:
+            all_addrs = list(range(DIM_SIZE))
+            all_addrs.remove(node_addr[dim])
+            router_map[dim] = dict()
+            for dst in all_addrs:
+                router_map[dim][dst] = 0  # Assign lane index as 0 for now
+        # Assign Aurora lanes for all external connections between BEE7s
+        io_base = hw.Bee7Fpga.EXT_IO_LANES[0]
+
+        # ---- X-axis ----
+        # All BEE7s in the X dimension are connected via the RTM
+        # The fist quad on the RTM is reserved for SFP+ peripherals like
+        # the USRPs, Ethernet switch ports, etc
+        # All others are used for inter BEE connections over QSFP+
+        terminal_map['X'] = io_base + hw.Bee7Fpga.BP_BASE
+        xdst = terminal_map['X'] + DIM_SIZE
+        for dst in router_map['X']:
+            router_map['X'][dst] = xdst
+            xdst += DIM_SIZE
+
+        # ---- Z-axis ----
+        # All BEE7s in the Z dimension are connected via FMC IO cards (front panel)
+        # To be symmetric with the X-axis the first quad on the FMC bus is also
+        # reserved (regardless of all quads being symmetric)
+        terminal_map['Z'] = io_base + hw.Bee7Fpga.FP_BASE
+        zdst = terminal_map['Z'] + DIM_SIZE
+        for dst in router_map['Z']:
+            router_map['Z'][dst] = zdst
+            zdst += DIM_SIZE
+
+        # ---- Y-axis ----
+        # Within a BEE7, FPGAs re connected in the Y-dimension:
+        # 0 - 1
+        # | X |
+        # 2 - 3
+        Y_LANE_MAP = {
+            0:{1:hw.Bee7Fpga.EW_IO_LANES[0], 2:hw.Bee7Fpga.NS_IO_LANES[0], 3:hw.Bee7Fpga.XX_IO_LANES[0]},
+            1:{0:hw.Bee7Fpga.EW_IO_LANES[0], 2:hw.Bee7Fpga.XX_IO_LANES[0], 3:hw.Bee7Fpga.NS_IO_LANES[0]},
+            2:{0:hw.Bee7Fpga.NS_IO_LANES[0], 1:hw.Bee7Fpga.XX_IO_LANES[0], 3:hw.Bee7Fpga.EW_IO_LANES[0]},
+            3:{0:hw.Bee7Fpga.XX_IO_LANES[0], 1:hw.Bee7Fpga.NS_IO_LANES[0], 2:hw.Bee7Fpga.EW_IO_LANES[0]}}
+        for dst in router_map['Y']:
+            router_map['Y'][dst] = Y_LANE_MAP[node_addr['Y']][dst]
+
+        return (router_map, terminal_map)
+
+    @classmethod
+    def config_bitstream(cls, bee7fpga, app_settings, fpga_addr):
+        """
+        Defines the FPGA behavior for the current FPGA. This function will make
+        create the necessary simulation functions, connect them to IO lanes and
+        define the various utilization metrics for the image.
+
+        config_bitstream(bee7fpga, app_settings, fpga_addr):
+        - bee7fpga: The FPGA simulation object being configured
+        - fpga_addr: Address of the FPGA in 3-D space
+        - app_settings: Application information
+        """
+        if len(fpga_addr) != 3:
+            raise bee7fpga.SimCompError('fpga_addr must be 3-dimensional. Got ' + str(len(fpga_addr)))
+
+        # Map that stores lane indices for all neighbors of this node
+        (router_map, terminal_map) = cls.get_portmap(fpga_addr)
+        # USRPs are connected in the X dimension (RTM) because it has SFP+ ports
+        base_usrp_lane = terminal_map['X']
+
+        DIM_WIDTH = 4       # Dimension size for the 3-D network
+        MAX_USRPS = 4       # Max USRPs that can possibly be connected to each FPGA
+        NUM_USRPS = 2       # Number of USRPs actually connected to each FPGA
+        CHANS_PER_USRP = 2  # How many radio channels does each USRP have
+        ALL_CHANS = list(range(pow(DIM_WIDTH, 3) * NUM_USRPS * CHANS_PER_USRP))
+
+        # Each FPGA will forward the sample stream from each USRP to all of its
+        # X-axis neighbors
+        for ri in router_map['X']:
+            for li in range(MAX_USRPS):  # li = GT Lane index
+                bee7fpga.sim_core.connect(bee7fpga.serdes_i[base_usrp_lane + li], 0, bee7fpga.serdes_o[router_map['X'][ri] + li], 0)
+
+        # Consequently, this FPGA will receive the USRP sample streams from each of
+        # its X-axis neighbors. Define an internal bus to aggregate all the neighbor
+        # streams with the native ones. Order the streams such that each FPGA sees the
+        # same data streams.
+        bee7fpga.int_samp_bus = dict()
+        for i in range(DIM_WIDTH):
+            for li in range(MAX_USRPS):  # li = GT Lane index
+                bee7fpga.int_samp_bus[(MAX_USRPS*i) + li] = rfnocsim.Channel(
+                    bee7fpga.sim_core, '%s/_INT_SAMP_%02d' % (bee7fpga.name,(MAX_USRPS*i) + li))
+                ln_base = base_usrp_lane if i == fpga_addr['X'] else router_map['X'][i]
+                bee7fpga.sim_core.connect(bee7fpga.serdes_i[ln_base + li], 0, bee7fpga.int_samp_bus[(MAX_USRPS*i) + li], 0)
+
+        # Forward the X-axis aggregated sample streams to all Y-axis neighbors
+        for ri in router_map['Y']:
+            for li in range(DIM_WIDTH*DIM_WIDTH):  # li = GT Lane index
+                bee7fpga.sim_core.connect(bee7fpga.int_samp_bus[li], 0, bee7fpga.serdes_o[router_map['Y'][ri] + li], 0)
+
+        # What partial products will this FPGA compute?
+        # Generate channel list to compute partial products
+        pp_chans = list()
+        for cg in range(DIM_WIDTH):     # cg = Channel group
+            for r in range(NUM_USRPS):
+                radio_num = cls.get_radio_num({'X':fpga_addr['X'], 'Y':fpga_addr['Y'], 'Z':cg}, r, NUM_USRPS)
+                for ch in range(CHANS_PER_USRP):
+                    pp_chans.append(radio_num*CHANS_PER_USRP + ch)
+
+        # Instantiate partial product computer
+        bee7fpga.func_pp_comp = PartialContribComputer(
+            sim_core=bee7fpga.sim_core, name=bee7fpga.name+'/pp_computer/', size=DIM_WIDTH*DIM_WIDTH*NUM_USRPS,
+            dst_chans=pp_chans,
+            items_per_stream=CHANS_PER_USRP, app_settings=app_settings)
+        bee7fpga.add_function(bee7fpga.func_pp_comp)
+
+        # Partial product computer takes inputs from all Y-axis links
+        for sg in range(DIM_WIDTH):     # sg = Group of sexdectects
+            for qi in range(DIM_WIDTH):  # qi = GT Quad index
+                for li in range(NUM_USRPS):
+                    func_inln = (sg * DIM_WIDTH * NUM_USRPS) + (qi * NUM_USRPS) + li
+                    if sg == fpga_addr['Y']:
+                        bee7fpga.sim_core.connect(bee7fpga.int_samp_bus[(qi * DIM_WIDTH) + li], 0,
+                            bee7fpga.func_pp_comp, func_inln)
+                    else:
+                        bee7fpga.sim_core.connect(bee7fpga.serdes_i[router_map['Y'][sg] + (qi * DIM_WIDTH) + li], 0,
+                            bee7fpga.func_pp_comp, func_inln)
+
+        # Internal bus to hold aggregated partial products
+        bee7fpga.pp_bus = dict()
+        for i in range(DIM_WIDTH*NUM_USRPS):
+            bee7fpga.pp_bus[i] = rfnocsim.Channel(bee7fpga.sim_core, '%s/_INT_PP_%02d' % (bee7fpga.name,i))
+            bee7fpga.sim_core.connect(bee7fpga.func_pp_comp, i, bee7fpga.pp_bus[i], 0)
+
+        # Forward partial products to Z-axis neighbors
+        for ri in router_map['Z']:
+            for li in range(NUM_USRPS):  # li = GT Lane index
+                bee7fpga.sim_core.connect(bee7fpga.pp_bus[ri*NUM_USRPS + li], 0, bee7fpga.serdes_o[router_map['Z'][ri] + li], 0)
+
+        # Instantiate partial product adder
+        bee7fpga.func_pp_comb = dict()
+        for i in range(NUM_USRPS):
+            bee7fpga.func_pp_comb[i] = PartialContribCombiner(
+                sim_core=bee7fpga.sim_core, name=bee7fpga.name + '/pp_combiner_%d/'%(i),
+                radix=DIM_WIDTH, app_settings=app_settings, reducer_filter=(ALL_CHANS, 'tx'),
+                items_per_stream=CHANS_PER_USRP)
+            bee7fpga.add_function(bee7fpga.func_pp_comb[i])
+
+        # Aggregate partial products from Z-axis neighbors
+        for u in range(NUM_USRPS):
+            for ri in range(DIM_WIDTH):
+                if ri in router_map['Z']:
+                    bee7fpga.sim_core.connect(bee7fpga.serdes_i[router_map['Z'][ri] + u], 0, bee7fpga.func_pp_comb[u], ri)
+                else:
+                    bee7fpga.sim_core.connect(bee7fpga.pp_bus[ri*NUM_USRPS + u], 0, bee7fpga.func_pp_comb[u], ri)
+
+        # Instantiate partial product adder
+        for u in range(NUM_USRPS):
+            bee7fpga.sim_core.connect(bee7fpga.func_pp_comb[u], 0, bee7fpga.serdes_o[base_usrp_lane + u], 0)
+
+        # Coefficient consumer
+        bee7fpga.coeff_sink = rfnocsim.Consumer(bee7fpga.sim_core, bee7fpga.name + '/coeff_sink', 10e9/8, 0.0)
+        bee7fpga.sim_core.connect(bee7fpga.serdes_i[terminal_map['X'] + NUM_USRPS], 0, bee7fpga.coeff_sink, 0)
+
+    @classmethod
+    def connect(cls, sim_core, usrps, bee7blades, hosts, app_settings):
+        NUM_USRPS = 2
+
+        # Reshape BEE7s
+        # The blades are arranged in 3D Flattened Butterfly configuration
+        # with a dimension width of 4. The X and Z dimension represent row, col
+        # and the Y dimension represents the internal connections
+        bee7grid = []
+        for r in range(4):
+            bee7row = []
+            for c in range(4):
+                blade = bee7blades[4*r + c]
+                for f in range(blade.NUM_FPGAS):
+                    cls.config_bitstream(blade.fpgas[f], app_settings, {'X':r, 'Y':f, 'Z':c})
+                bee7row.append(blade)
+            bee7grid.append(bee7row)
+
+        # USRP-Bee7 Connections
+        # Blades across the diagonal are connected to USRPs
+        for x in range(4):
+            for y in range(4):
+                for z in range(4):
+                    for u in range(NUM_USRPS):
+                        usrp_num = cls.get_radio_num({'X':x,'Y':y,'Z':z}, u, NUM_USRPS)
+                        (router_map, terminal_map) = cls.get_portmap({'X':x,'Y':y,'Z':z})
+                        sim_core.connect_bidir(
+                            usrps[usrp_num], 0,
+                            bee7grid[x][z], hw.Bee7Blade.io_lane(y, terminal_map['X'] + u), 'SAMP')
+
+        # Bee7-Bee7 Connections
+        null_srcs = []
+        for row in range(4):
+            for col in range(4):
+                for fpga in range(4):
+                    (src_map, t) = cls.get_portmap({'X':row,'Y':fpga,'Z':col})
+                    for dst in range(4):
+                        if row != dst:
+                            (dst_map, t) = cls.get_portmap({'X':dst,'Y':fpga,'Z':col})
+                            sim_core.connect_multi(
+                                bee7grid[row][col],
+                                list(range(hw.Bee7Blade.io_lane(fpga, src_map['X'][dst]), hw.Bee7Blade.io_lane(fpga, src_map['X'][dst]+4))),
+                                bee7grid[dst][col],
+                                list(range(hw.Bee7Blade.io_lane(fpga, dst_map['X'][row]), hw.Bee7Blade.io_lane(fpga, dst_map['X'][row]+4))),
+                                'SAMP')
+                        if col != dst:
+                            (dst_map, t) = cls.get_portmap({'X':row,'Y':fpga,'Z':dst})
+                            sim_core.connect_multi(
+                                bee7grid[row][col],
+                                list(range(hw.Bee7Blade.io_lane(fpga, src_map['Z'][dst]), hw.Bee7Blade.io_lane(fpga, src_map['Z'][dst]+4))),
+                                bee7grid[row][dst],
+                                list(range(hw.Bee7Blade.io_lane(fpga, dst_map['Z'][col]), hw.Bee7Blade.io_lane(fpga, dst_map['Z'][col]+4))),
+                                'PP', 'blue')
+
+        # Host connection
+        for row in range(4):
+            for col in range(4):
+                for fpga in range(4):
+                    (router_map, terminal_map) = cls.get_portmap({'X':row,'Y':row,'Z':col})
+                    sim_core.connect_bidir(
+                        hosts[row], col*4 + fpga,
+                        bee7grid[row][col], hw.Bee7Blade.io_lane(fpga, terminal_map['X'] + NUM_USRPS), 'COEFF', 'red')
@@ -0,0 +1,261 @@
+#!/usr/bin/env python
+#
+# Copyright 2016 Ettus Research
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+import rfnocsim
+import math
+
+class UsrpX310(rfnocsim.SimComp):
+    # Hardware specific constants
+    RADIO_LATENCY = 1e-6
+    IO_LATENCY    = 1e-6
+    MAX_SAMP_RATE = 300e6   # Limited by 10GbE
+    BPI = 4                 # Bytes per sample (item)
+
+    """
+    Simulation model for the USRP X310
+    - Has two producers and consumers of FFT data
+    - Computes bandwidth and latency using FFT size and overlap
+    """
+    def __init__(self, sim_core, index, app_settings):
+        rfnocsim.SimComp.__init__(self, sim_core, name='USRP_%03d' % (index), ctype=rfnocsim.comptype.hardware)
+        # USRP i carries data for radio 2i and 2i+1 interleaved into one stream
+        self.index = index
+        items = [rfnocsim.DataStream.submatrix_gen('rx', [2*index]),
+                 rfnocsim.DataStream.submatrix_gen('rx', [2*index+1])]
+        # Samples are 4 bytes I and Q
+        latency = (self.RADIO_LATENCY + self.IO_LATENCY/2) * self.get_tick_rate()
+        if app_settings['domain'] == 'frequency':
+            # Max latency per direction depends on the FFT size and sample rate
+            latency += self.__get_fft_latency(
+                app_settings['fft_size'], app_settings['samp_rate'], self.get_tick_rate())
+        # An X310 Radio has two producers (RX data) and consumers (TX data) (i.e. two ethernet ports)
+        # Both ports can carry data from both radio frontends
+        self.sources = ([
+            rfnocsim.Producer(sim_core, self.name + '/TX0', self.BPI, items, self.MAX_SAMP_RATE, latency),
+            rfnocsim.Producer(sim_core, self.name + '/TX1', self.BPI, items, self.MAX_SAMP_RATE, latency)])
+        self.sinks = ([
+            rfnocsim.Consumer(sim_core, self.name + '/RX0', self.BPI * self.MAX_SAMP_RATE, latency),
+            rfnocsim.Consumer(sim_core, self.name + '/RX1', self.BPI * self.MAX_SAMP_RATE, latency)])
+        # The actual sample rate depends over the wire depends on the radio sample rate,
+        # the FFT size and FFT overlap
+        for src in self.sources:
+            if app_settings['domain'] == 'frequency':
+                src.set_rate(app_settings['samp_rate'] *
+                    (1.0 + (float(app_settings['fft_overlap'])/app_settings['fft_size'])))
+            else:
+                src.set_rate(app_settings['samp_rate'])
+
+    def inputs(self, i, bind=False):
+        return self.sinks[i].inputs(0, bind)
+
+    def connect(self, i, dest):
+        self.sources[i].connect(0, dest)
+
+    def get_utilization(self, what):
+        return 0.0
+
+    def get_util_attrs(self):
+        return []
+
+    def validate(self, chan):
+        recvd = self.sinks[chan].get_items()
+        idxs = []
+        for i in recvd:
+            (str_id, idx) = rfnocsim.DataStream.submatrix_parse(i)
+            if str_id != 'tx':
+                raise RuntimeError(self.name + ' received incorrect TX data on channel ' + str(chan))
+            idxs.append(idx[0][0])
+        if sorted(idxs) != [self.index*2, self.index*2 + 1]:
+            raise RuntimeError(self.name + ' received incorrect TX data. Got: ' + str(sorted(idxs)))
+
+    def __get_fft_latency(self, fft_size, samp_rate, tick_rate):
+        FFT_CLK_RATE = 200e6
+        fft_cycles = {128:349, 256:611, 512:1133, 1024:2163, 2048:4221, 4096:8323}
+        latency = max(
+            fft_cycles[fft_size] / FFT_CLK_RATE,    #Min time to leave FFT
+            fft_size / samp_rate)                   #Min time to enter FFT
+        return latency * tick_rate
+
+
+class Bee7Fpga(rfnocsim.SimComp):
+    """
+    Simulation model for a single Beecube BEE7 FPGA
+    - Type = hardware
+    - Contains 80 IO lanes per FPGA: 16 each to neighboring
+      FPGAs and 32 lanes going outside
+    """
+    # IO lanes (How the various IO lanes in an FPGA are allocated)
+    EW_IO_LANES  = list(range(0,16))
+    NS_IO_LANES  = list(range(16,32))
+    XX_IO_LANES  = list(range(32,48))
+    EXT_IO_LANES = list(range(48,80))
+    # External IO lane connections
+    FP_BASE  = 0    # Front panel FMC
+    FP_LANES = 16
+    BP_BASE  = 16   # Backplane RTM
+    BP_LANES = 16
+
+    # Hardware specific constants
+    IO_LN_LATENCY = 1.5e-6
+    IO_LN_BW = 10e9/8
+    ELASTIC_BUFF_FULLNESS = 0.5
+    BRAM_BYTES = 18e3/8
+
+    def __init__(self, sim_core, name):
+        self.sim_core = sim_core
+        rfnocsim.SimComp.__init__(self, sim_core, name, rfnocsim.comptype.hardware)
+        # Max resources from Virtex7 datasheet
+        self.max_resources = rfnocsim.HwRsrcs()
+        self.max_resources.add('DSP', 3600)
+        self.max_resources.add('BRAM_18kb', 2940)
+        self.resources = rfnocsim.HwRsrcs()
+        # Each FPGA has 80 SERDES lanes
+        self.max_io = 80
+        self.serdes_i = dict()
+        self.serdes_o = dict()
+        # Each lane can carry at most 10GB/s
+        # Each SERDES needs to have some buffering. We assume elastic buffering (50% full on avg).
+        io_buff_size = (self.IO_LN_BW * self.IO_LN_LATENCY) / self.ELASTIC_BUFF_FULLNESS
+        # Worst case lane latency
+        lane_latency = self.IO_LN_LATENCY * self.get_tick_rate()
+        for i in range(self.max_io):
+            self.serdes_i[i] = rfnocsim.Channel(sim_core, self.__ioln_name(i)+'/I', self.IO_LN_BW, lane_latency / 2)
+            self.serdes_o[i] = rfnocsim.Channel(sim_core, self.__ioln_name(i)+'/O', self.IO_LN_BW, lane_latency / 2)
+            self.resources.add('BRAM_18kb', 1 + math.ceil(io_buff_size / self.BRAM_BYTES))  #input buffering per lane
+            self.resources.add('BRAM_18kb', 1)                                          #output buffering per lane
+        # Other resources
+        self.resources.add('BRAM_18kb', 72)     # BPS infrastructure + microblaze
+        self.resources.add('BRAM_18kb', 128)    # 2 MIGs
+
+        self.functions = dict()
+
+    def inputs(self, i, bind=False):
+        return self.serdes_i[i].inputs(0, bind)
+
+    def connect(self, i, dest):
+        self.serdes_o[i].connect(0, dest)
+
+    def get_utilization(self, what):
+        if self.max_resources.get(what) != 0:
+            return self.resources.get(what) / self.max_resources.get(what)
+        else:
+            return 0.0
+
+    def get_util_attrs(self):
+        return ['DSP', 'BRAM_18kb']
+
+    def rename(self, name):
+        self.name = name
+
+    def add_function(self, func):
+        if func.name not in self.functions:
+            self.functions[func.name] = func
+        else:
+            raise RuntimeError('Function ' + self.name + ' already defined in ' + self.name)
+        self.resources.merge(func.get_rsrcs())
+
+    def __ioln_name(self, i):
+        if i in self.EW_IO_LANES:
+            return '%s/SER_EW_%02d'%(self.name,i-self.EW_IO_LANES[0])
+        elif i in self.NS_IO_LANES:
+            return '%s/SER_NS_%02d'%(self.name,i-self.NS_IO_LANES[0])
+        elif i in self.XX_IO_LANES:
+            return '%s/SER_XX_%02d'%(self.name,i-self.XX_IO_LANES[0])
+        else:
+            return '%s/SER_EXT_%02d'%(self.name,i-self.EXT_IO_LANES[0])
+
+class Bee7Blade(rfnocsim.SimComp):
+    """
+    Simulation model for a single Beecube BEE7
+    - Contains 4 FPGAs (fully connected with 16 lanes)
+    """
+    NUM_FPGAS = 4
+    # FPGA positions in the blade
+    NW_FPGA = 0
+    NE_FPGA = 1
+    SW_FPGA = 2
+    SE_FPGA = 3
+
+    def __init__(self, sim_core, index):
+        self.sim_core = sim_core
+        self.name = name='BEE7_%03d' % (index)
+        # Add FPGAs
+        names = ['FPGA_NW', 'FPGA_NE', 'FPGA_SW', 'FPGA_SE']
+        self.fpgas = []
+        for i in range(self.NUM_FPGAS):
+            self.fpgas.append(Bee7Fpga(sim_core, name + '/' + names[i]))
+        # Build a fully connected network of FPGA
+        # 4 FPGAs x 3 Links x 2 directions = 12 connections
+        self.sim_core.connect_multi_bidir(
+            self.fpgas[self.NW_FPGA], Bee7Fpga.EW_IO_LANES, self.fpgas[self.NE_FPGA], Bee7Fpga.EW_IO_LANES)
+        self.sim_core.connect_multi_bidir(
+            self.fpgas[self.NW_FPGA], Bee7Fpga.NS_IO_LANES, self.fpgas[self.SW_FPGA], Bee7Fpga.NS_IO_LANES)
+        self.sim_core.connect_multi_bidir(
+            self.fpgas[self.NW_FPGA], Bee7Fpga.XX_IO_LANES, self.fpgas[self.SE_FPGA], Bee7Fpga.XX_IO_LANES)
+        self.sim_core.connect_multi_bidir(
+            self.fpgas[self.NE_FPGA], Bee7Fpga.XX_IO_LANES, self.fpgas[self.SW_FPGA], Bee7Fpga.XX_IO_LANES)
+        self.sim_core.connect_multi_bidir(
+            self.fpgas[self.NE_FPGA], Bee7Fpga.NS_IO_LANES, self.fpgas[self.SE_FPGA], Bee7Fpga.NS_IO_LANES)
+        self.sim_core.connect_multi_bidir(
+            self.fpgas[self.SW_FPGA], Bee7Fpga.EW_IO_LANES, self.fpgas[self.SE_FPGA], Bee7Fpga.EW_IO_LANES)
+
+    def inputs(self, i, bind=False):
+        IO_PER_FPGA = len(Bee7Fpga.EXT_IO_LANES)
+        return self.fpgas[int(i/IO_PER_FPGA)].inputs(Bee7Fpga.EXT_IO_LANES[i%IO_PER_FPGA], bind)
+
+    def connect(self, i, dest):
+        IO_PER_FPGA = len(Bee7Fpga.EXT_IO_LANES)
+        self.fpgas[int(i/IO_PER_FPGA)].connect(Bee7Fpga.EXT_IO_LANES[i%IO_PER_FPGA], dest)
+
+    @staticmethod
+    def io_lane(fpga, fpga_lane):
+        IO_PER_FPGA = len(Bee7Fpga.EXT_IO_LANES)
+        return (fpga_lane - Bee7Fpga.EXT_IO_LANES[0]) + (fpga * IO_PER_FPGA)
+
+class ManagementHostandSwitch(rfnocsim.SimComp):
+    """
+    Simulation model for a management host computer
+    - Sources channel coefficients
+    - Configures radio
+    """
+    def __init__(self, sim_core, index, num_coeffs, switch_ports, app_settings):
+        rfnocsim.SimComp.__init__(self, sim_core, name='MGMT_HOST_%03d'%(index), ctype=rfnocsim.comptype.other)
+        if app_settings['domain'] == 'frequency':
+            k = app_settings['fft_size']
+        else:
+            k = app_settings['fir_taps']
+
+        self.sources = dict()
+        self.sinks = dict()
+        for l in range(switch_ports):
+            self.sources[l] = rfnocsim.Producer(
+                sim_core, '%s/COEFF_%d'%(self.name,l), 4, ['coeff_%03d[%d]'%(index,l)], (10e9/8)/switch_ports, 0)
+            self.sinks[l] = rfnocsim.Consumer(sim_core, self.name + '%s/ACK%d'%(self.name,l))
+            self.sources[l].set_rate(k*num_coeffs*app_settings['coherence_rate'])
+
+    def inputs(self, i, bind=False):
+        return self.sinks[i].inputs(0, bind)
+
+    def connect(self, i, dest):
+        self.sources[i].connect(0, dest)
+
+    def get_utilization(self, what):
+        return 0.0
+
+    def get_util_attrs(self):
+        return []
@@ -0,0 +1,757 @@
+#!/usr/bin/env python
+#
+# Copyright 2016 Ettus Research
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+import collections
+import copy
+import re
+import math
+import numpy as np
+import matplotlib.pyplot as plt
+import matplotlib.ticker as mticker
+from graphviz import Digraph
+
+#------------------------------------------------------------
+# Simulator Core Components
+#------------------------------------------------------------
+class comptype():
+    """
+    Simulation component type enumeration
+    """
+    producer = 'Producer'
+    consumer = 'Consumer'
+    channel  = 'Channel'
+    function = 'Function'
+    hardware = 'Hardware'
+    other    = 'Other'
+
+class SimulatorCore:
+    """
+    Core simulation engine:
+    This class owns all the simulation components and
+    manages time and other housekeeping operations.
+    """
+
+    def __init__(self, tick_rate):
+        self.__ticks = 0
+        self.__tick_rate = tick_rate
+        self.__tick_aware_comps = list()
+        self.__all_comps = dict()
+        self.__edge_render_db = list()
+
+    def register(self, comp, tick_aware):
+        if comp.name not in self.__all_comps:
+            self.__all_comps[comp.name] = comp
+        else:
+            raise RuntimeError('Duplicate component ' + comp.name)
+        if tick_aware:
+            self.__tick_aware_comps.append(comp)
+
+    def connect(self, src, srcport, dst, dstport, render_label=None, render_color=None):
+        src.connect(srcport, dst.inputs(dstport, bind=True))
+        if render_label:
+            self.__edge_render_db.append(
+                (src.name, dst.name, 1.0, render_label, render_color))
+
+    def connect_bidir(self, ep1, ep1port, ep2, ep2port, render_labels=None, render_colors=None):
+        if render_labels:
+            if not isinstance(render_labels, (list, tuple)):
+                render_labels = [render_labels, render_labels]
+        else:
+            render_labels = [None, None]
+        if render_colors:
+            if not isinstance(render_colors, (list, tuple)):
+                render_colors = [render_colors, render_colors]
+        else:
+            render_colors = [None, None]
+        self.connect(ep1, ep1port, ep2, ep2port, render_labels[0], render_colors[0])
+        self.connect(ep2, ep2port, ep1, ep1port, render_labels[1], render_colors[1])
+
+    def connect_multi(self, src, srcports, dst, dstports, render_label=None, render_color=None):
+        if len(srcports) != len(dstports):
+            raise RuntimeError(
+                'Source and destination ports should be of the same length')
+        for i in range(len(srcports)):
+            src.connect(srcports[i], dst.inputs(dstports[i], bind=True))
+        if render_label:
+            self.__edge_render_db.append((src.name, dst.name, float(len(srcports)), render_label, render_color))
+
+    def connect_multi_bidir(self, ep1, ep1port, ep2, ep2port, render_labels=None, render_colors=None):
+        if render_labels:
+            if not isinstance(render_labels, (list, tuple)):
+                render_labels = [render_labels, render_labels]
+        else:
+            render_labels = [None, None]
+        if render_colors:
+            if not isinstance(render_colors, (list, tuple)):
+                render_colors = [render_colors, render_colors]
+        else:
+            render_colors = [None, None]
+        self.connect_multi(ep1, ep1port, ep2, ep2port, render_labels[0], render_colors[0])
+        self.connect_multi(ep2, ep2port, ep1, ep1port, render_labels[1], render_colors[1])
+
+    def list_components(self, comptype='', name_filt=''):
+        if not comptype:
+            return sorted([c for c in list(self.__all_comps.keys())
+                if (re.match(name_filt, self.__all_comps[c].name))])
+        else:
+            return sorted([c for c in list(self.__all_comps.keys())
+                if (self.__all_comps[c].type == comptype and
+                    re.match(name_filt, self.__all_comps[c].name))])
+
+    def lookup(self, comp_name):
+        return self.__all_comps[comp_name]
+
+    def tick(self):
+        self.__ticks += 1
+        for c in self.__tick_aware_comps:
+            c.tick()
+
+    def run(self, time_s):
+        for i in range(int(time_s * self.__tick_rate)):
+            self.tick()
+
+    def get_ticks(self):
+        return self.__ticks
+
+    def get_tick_rate(self):
+        return self.__tick_rate
+
+    def network_to_dot(self):
+        dot = Digraph(comment='RFNoC Network Topology')
+        node_ids = dict()
+        next_node_id = 1
+        for edgeinfo in self.__edge_render_db:
+            for i in range(2):
+                node = edgeinfo[i]
+                if node not in node_ids:
+                    node_id = next_node_id
+                    node_ids[node] = node_id
+                    dot.node(str(node_id), node)
+                    next_node_id += 1
+        for edgeinfo in self.__edge_render_db:
+            dot.edge(
+                tail_name=str(node_ids[edgeinfo[0]]),
+                head_name=str(node_ids[edgeinfo[1]]),
+                label=edgeinfo[3],
+                weight=str(edgeinfo[2]), penwidth=str(edgeinfo[2]/2),
+                color=str(edgeinfo[4] if edgeinfo[4] else 'black'))
+        return dot
+
+class SimComp:
+    """
+    Base simulation component:
+    All components must inherit from SimComp.
+    """
+
+    def __init__(self, sim_core, name, ctype):
+        self.__sim_core = sim_core
+        self.name = name
+        self.type = ctype
+        self.__sim_core.register(self, (ctype == comptype.producer))
+
+    def get_ticks(self):
+        return self.__sim_core.get_ticks()
+
+    def get_tick_rate(self):
+        return self.__sim_core.get_tick_rate()
+
+    def SimCompError(self, msg):
+        raise RuntimeError(msg + ' [' + self.name + ']')
+
+#------------------------------------------------------------
+# Data stream components
+#------------------------------------------------------------
+class HwRsrcs():
+    """
+    Hardware Resources Container:
+    This object holds physical hardware resource information
+    that can be used to report utilization. Resource items are
+    generic and can be defined by the actual simulation.
+    """
+
+    def __init__(self):
+        self.__rsrcs = dict()
+
+    def get(self, what):
+        if what in self.__rsrcs:
+            return self.__rsrcs[what]
+        else:
+            return 0.0
+
+    def set(self, what, value):
+        self.__rsrcs[what] = float(value)
+
+    def add(self, what, value):
+        if what in self.__rsrcs:
+            self.__rsrcs[what] += float(value)
+        else:
+            self.__rsrcs[what] = float(value)
+
+    def merge(self, other_rsrcs):
+        for attr in other_rsrcs.get_attrs():
+            self.add(attr, other_rsrcs.get(attr))
+
+    def get_attrs(self):
+        return list(self.__rsrcs.keys())
+
+    def reset(self, what = None):
+        if what is not None:
+            if what in self.__rsrcs:
+                self.__rsrcs[what] = 0.0
+        else:
+            self.__rsrcs = dict()
+
+class DataStream:
+    """
+    Data Stream Object:
+    Holds information about a date stream that passes through various block.
+    The simulator simulates event on the actual stream so each stream Object
+    must have a unique payload (items) to disambiguate it from the rest.
+    """
+    HopInfo = collections.namedtuple('HopInfo', ['location', 'latency'])
+
+    class HopDb():
+        def __init__(self, hops):
+            self.__hops = hops
+
+        def get_src(self):
+            return self.__hops[0].location
+
+        def get_dst(self):
+            return self.__hops[-1].location
+
+        def get_hops(self):
+            hoparr = []
+            for h in self.__hops:
+                hoparr.append(h.location)
+            return hoparr
+
+        def get_latency(self, ticks, location = ''):
+            latency = ticks - self.__hops[0].latency    #Hop0 always has the init timestamp
+            if (self.__hops[0].location != location):
+                for i in range(1,len(self.__hops)):
+                    latency += self.__hops[i].latency
+                    if (self.__hops[i].location == location):
+                        break
+            return latency
+
+    def __init__(self, bpi, items, count, producer=None, parent=None):
+        self.bpi = bpi
+        self.items = []
+        self.items.extend(items)
+        self.count = count
+        self.__hops = list()
+        if producer and parent:
+            raise RuntimeError('Data stream cannot have both a producer and a parent stream')
+        elif producer:
+            self.__hops.append(self.HopInfo(location='Gen@'+producer.name, latency=producer.get_ticks()))
+        elif parent:
+            self.__hops.extend(parent.get_hops())
+        else:
+            raise RuntimeError('Data stream must have a producer or a parent stream')
+
+    def add_hop(self, location, latency):
+        self.__hops.append(self.HopInfo(location=location, latency=latency))
+
+    def get_hops(self):
+        return self.__hops
+
+    def get_bytes(self):
+        return self.bpi * len(self.items) * self.count
+
+    """
+    Type specific methods
+    """
+    @staticmethod
+    def submatrix_gen(matrix_id, coordinates):
+        coord_arr = []
+        for c in coordinates:
+            if isinstance(c, collections.Iterable):
+                coord_arr.append('(' + (','.join(str(x) for x in c)) + ')')
+            else:
+                coord_arr.append('(' + str(c) + ')')
+        return matrix_id + '[' + ';'.join(coord_arr) + ']'
+
+    @staticmethod
+    def submatrix_parse(stream_id):
+        m = re.match('(.+)\[(.*)\]', stream_id)
+        matrix_id = m.group(1)
+        coords = []
+        for cstr in m.group(2).split(';'):
+            coords.append([int(x) for x in re.match('\((.+)\)', cstr).group(1).split(',')])
+        return (matrix_id, coords)
+
+#------------------------------------------------------------
+# Basic Network components
+#------------------------------------------------------------
+
+# Producer object.
+class Producer(SimComp):
+    """
+    Producer Block:
+    Generates data at a constant rate
+    """
+
+    def __init__(self, sim_core, name, bpi, items, max_samp_rate = float('inf'), latency = 0):
+        SimComp.__init__(self, sim_core, name, comptype.producer)
+        self.__bpi = bpi
+        self.__items = items
+        self.__bw = max_samp_rate * bpi
+        self.__latency = latency
+        self.__dests = list()
+        self.__data_count = 0
+        self.__byte_count = 0
+        self.__backpressure_ticks = 0
+        self.set_rate(self.get_tick_rate())
+
+    def inputs(self, i, bind=False):
+        raise self.SimCompError('This is a producer block. Cannot connect another block to it.')
+
+    def connect(self, i, dest):
+        self.__dests.append(dest)
+
+    def set_rate(self, samp_rate):
+        self.__data_count = samp_rate / self.get_tick_rate()
+
+    def tick(self):
+        if len(self.__dests) > 0:
+            ready = True
+            for dest in self.__dests:
+                ready = ready and dest.is_ready()
+            if ready:
+                data = DataStream(
+                    bpi=self.__bpi, items=self.__items, count=self.__data_count, producer=self)
+                if self.__backpressure_ticks > 0:
+                    data.add_hop('BP@'+self.name, self.__backpressure_ticks)
+                data.add_hop(self.name, self.__latency)
+                for dest in self.__dests:
+                    dest.push(copy.deepcopy(data))
+                self.__byte_count += data.get_bytes()
+                self.__backpressure_ticks = 0
+            else:
+                self.__backpressure_ticks += 1
+
+    def get_bytes(self):
+        return self.__byte_count
+
+    def get_util_attrs(self):
+        return ['bandwidth']
+
+    def get_utilization(self, what):
+        if what in self.get_util_attrs():
+            return ((self.__byte_count / (self.get_ticks() / self.get_tick_rate())) /
+                    self.__bw)
+        else:
+            return 0.0
+
+# Consumer object.
+class Consumer(SimComp):
+    """
+    Consumes Block:
+    Consumes data at a constant rate
+    """
+
+    def __init__(self, sim_core, name, bw = float("inf"), latency = 0):
+        SimComp.__init__(self, sim_core, name, comptype.consumer)
+        self.__byte_count = 0
+        self.__item_db = dict()
+        self.__bw = bw
+        self.__latency = latency
+        self.__bound = False
+
+    def inputs(self, i, bind=False):
+        if bind and self.__bound:
+            raise self.SimCompError('Input ' + str(i) + ' is already driven (bound).')
+        self.__bound = bind
+        return self
+
+    def connect(self, i, dest):
+        raise self.SimCompError('This is a consumer block. Cannot connect to another block.')
+
+    def is_ready(self):
+        return True #TODO: Readiness can depend on bw and byte_count
+
+    def push(self, data):
+        data.add_hop(self.name, self.__latency)
+        for item in data.items:
+            self.__item_db[item] = DataStream.HopDb(data.get_hops())
+        self.__byte_count += data.get_bytes()
+
+    def get_items(self):
+        return list(self.__item_db.keys())
+
+    def get_bytes(self):
+        return self.__byte_count
+
+    def get_hops(self, item):
+        return self.__item_db[item].get_hops()
+
+    def get_latency(self, item, hop=None):
+        if not hop:
+            hop = self.get_hops(item)[-1]
+        return self.__item_db[item].get_latency(self.get_ticks(), hop) / self.get_tick_rate()
+
+    def get_util_attrs(self):
+        return ['bandwidth']
+
+    def get_utilization(self, what):
+        if what in self.get_util_attrs():
+            return ((self.__byte_count / (self.get_ticks() / self.get_tick_rate())) /
+                    self.__bw)
+        else:
+            return 0.0
+
+# Channel
+class Channel(SimComp):
+    """
+    A resource limited IO pipe:
+    From the data stream perspective, this is a passthrough
+    """
+
+    def __init__(self, sim_core, name, bw = float("inf"), latency = 0, lossy = True):
+        SimComp.__init__(self, sim_core, name, comptype.channel)
+        self.__bw = bw
+        self.__latency = latency
+        self.__lossy = lossy
+        self.__dests = list()
+        self.__byte_count = 0
+        self.__bound = False
+
+    def get_bytes(self):
+        return self.__byte_count
+
+    def inputs(self, i, bind=False):
+        if (i != 0):
+            raise self.SimCompError('An IO lane has only one input.')
+        if bind and self.__bound:
+            raise self.SimCompError('Input ' + str(i) + ' is already driven (bound).')
+        self.__bound = bind
+        return self
+
+    def connect(self, i, dest):
+        self.__dests.append(dest)
+
+    def is_connected(self):
+        return len(self.__dests) > 0
+
+    def is_bound(self):
+        return self.__bound
+
+    def is_ready(self):
+        # If nothing is hooked up to a lossy lane, it will drop data
+        if self.__lossy and not self.is_connected():
+            return True
+        ready = self.is_connected()
+        for dest in self.__dests:
+            ready = ready and dest.is_ready()
+        return ready
+
+    def push(self, data):
+        # If nothing is hooked up to a lossy lane, it will drop data
+        if self.__lossy and not self.is_connected():
+            return
+        data.add_hop(self.name, self.__latency)
+        for dest in self.__dests:
+            dest.push(copy.deepcopy(data))
+        self.__byte_count += data.get_bytes()
+
+    def get_util_attrs(self):
+        return ['bandwidth']
+
+    def get_utilization(self, what):
+        if what in self.get_util_attrs():
+            return ((self.__byte_count / (self.get_ticks() / self.get_tick_rate())) /
+                    self.__bw)
+        else:
+            return 0.0
+
+# Function
+class Function(SimComp):
+    """
+    A Function Component:
+    A function block is something that does anything interesting with a data stream.
+    A function can have multiple input and output streams.
+    """
+
+    class Arg:
+        def __init__(self, num, base_func):
+            self.__num = num
+            self.__data = None
+            self.__base_func = base_func
+            self.__bound = False
+
+        def get_num(self):
+            return self.__num
+
+        def is_ready(self):
+            return self.__base_func.is_ready() and not self.__data
+
+        def push(self, data):
+            self.__data = data
+            self.__base_func.notify(self.__num)
+
+        def pop(self):
+            if self.__data:
+                data = self.__data
+                self.__data = None
+                return data
+            else:
+                raise RuntimeError('Nothing to pop.')
+
+        def bind(self, bind):
+            retval = self.__bound
+            self.__bound = bind
+            return retval
+
+    Latencies = collections.namedtuple('Latencies', ['func','inarg','outarg'])
+
+    def __init__(self, sim_core, name, num_in_args, num_out_args, ticks_per_exec = 1):
+        SimComp.__init__(self, sim_core, name, comptype.function)
+        self.__ticks_per_exec = ticks_per_exec
+        self.__last_exec_ticks = 0
+        self.__in_args = list()
+        for i in range(num_in_args):
+            self.__in_args.append(Function.Arg(i, self))
+        self.__dests = list()
+        for i in range(num_out_args):
+            self.__dests.append(None)
+        self.__in_args_pushed = dict()
+        # Resources required by this function to do its job in one tick
+        self.__rsrcs = HwRsrcs()
+        self.__latencies = self.Latencies(func=0, inarg=[0]*num_in_args, outarg=[0]*num_out_args)
+
+    def get_rsrcs(self):
+        return self.__rsrcs
+
+    def update_rsrcs(self, rsrcs):
+        self.__rsrcs = rsrcs
+
+    def update_latency(self, func, inarg=None, outarg=None):
+        self.__latencies = self.Latencies(
+            func=func,
+            inarg=inarg if inarg else [0]*len(self.__in_args),
+            outarg=outarg if outarg else [0]*len(self.__dests))
+
+    def inputs(self, i, bind=False):
+        if bind and self.__in_args[i].bind(True):
+            raise self.SimCompError('Input argument ' + str(i) + ' is already driven (bound).')
+        return self.__in_args[i]
+
+    def connect(self, i, dest):
+        self.__dests[i] = dest
+
+    def is_ready(self):
+        ready = len(self.__dests) > 0
+        for dest in self.__dests:
+            ready = ready and dest.is_ready()
+        exec_ready = (self.get_ticks() - self.__last_exec_ticks) >= self.__ticks_per_exec
+        return ready and exec_ready
+
+    def create_outdata_stream(self, bpi, items, count):
+        return DataStream(
+            bpi=bpi, items=items, count=count, parent=self.__max_latency_input)
+
+    def notify(self, arg_i):
+        self.__in_args_pushed[arg_i] = True
+        # Wait for all input args to come in
+        if (sorted(self.__in_args_pushed.keys()) == list(range(len(self.__in_args)))):
+            # Pop data out of each input arg
+            max_in_latency = 0
+            self.__max_latency_input = None
+            arg_data_in = list()
+            for arg in self.__in_args:
+                d = arg.pop()
+                arg_data_in.append(d)
+                lat = DataStream.HopDb(d.get_hops()).get_latency(self.get_ticks())
+                if lat > max_in_latency:
+                    max_in_latency = lat
+                    self.__max_latency_input = d
+            # Call the function
+            arg_data_out = self.do_func(arg_data_in)
+            if not isinstance(arg_data_out, collections.Iterable):
+                arg_data_out = [arg_data_out]
+            # Update output args
+            for i in range(len(arg_data_out)):
+                arg_data_out[i].add_hop(self.name,
+                    max(self.__latencies.inarg) + self.__latencies.func + self.__latencies.outarg[i])
+                self.__dests[i].push(arg_data_out[i])
+            # Cleanup
+            self.__last_exec_ticks = self.get_ticks()
+            self.__in_args_pushed = dict()
+
+    def get_util_attrs(self):
+        return []
+
+    def get_utilization(self, what):
+        return 0.0
+
+#------------------------------------------------------------
+# Plotting Functions
+#------------------------------------------------------------
+class Visualizer():
+    def __init__(self, sim_core):
+        self.__sim_core = sim_core
+        self.__figure = None
+        self.__fig_dims = None
+
+    def show_network(self, engine='fdp'):
+        dot = self.__sim_core.network_to_dot()
+        dot.format = 'png'
+        dot.engine = engine
+        dot.render('/tmp/rfnoc_sim.dot', view=True, cleanup=True)
+
+    def dump_consumed_streams(self, consumer_filt='.*'):
+        comps = self.__sim_core.list_components(comptype.consumer, consumer_filt)
+        print('=================================================================')
+        print('Streams Received by Consumers matching (%s) at Tick = %04d'%(consumer_filt,self.__sim_core.get_ticks()))
+        print('=================================================================')
+        for c in sorted(comps):
+            comp = self.__sim_core.lookup(c)
+            for s in sorted(comp.get_items()):
+                print(' - %s: (%s) Latency = %gs'%(s,c,comp.get_latency(s)))
+        print('=================================================================')
+
+    def dump_debug_audit_log(self, ctype, name_filt='.*'):
+        if ctype != comptype.channel:
+            raise NotImplementedError('Component type not yet supported: ' + ctype)
+
+        comps = self.__sim_core.list_components(ctype, name_filt)
+        print('=================================================================')
+        print('Debug Audit for all %s Components matching (%s)'%(ctype,name_filt))
+        print('=================================================================')
+        for c in sorted(comps):
+            comp = self.__sim_core.lookup(c)
+            status = 'Unknown'
+            if comp.is_bound() and comp.is_connected():
+                status = 'Good'
+            elif comp.is_bound() and not comp.is_connected():
+                status = 'WARNING (Driven but Unused)'
+            elif not comp.is_bound() and comp.is_connected():
+                status = 'WARNING (Used but Undriven)'
+            else:
+                status = 'Unused'
+            print(' - %s: Status = %s'%(c,status))
+        print('=================================================================')
+
+    def new_figure(self, grid_dims=[1,1], fignum=1, figsize=(16, 9), dpi=72):
+        self.__figure = plt.figure(num=fignum, figsize=figsize, dpi=dpi)
+        self.__fig_dims = grid_dims
+
+    def show_figure(self):
+        plt.show()
+        self.__figure = None
+
+    def plot_utilization(self, ctype, name_filt='.*', grid_pos=1):
+        colors = ['b','r','g','y']
+        comps = self.__sim_core.list_components(ctype, name_filt)
+        attrs = set()
+        for c in comps:
+            attrs |= set(self.__sim_core.lookup(c).get_util_attrs())
+        attrs = sorted(list(attrs))
+
+        if not self.__figure:
+            self.new_figure()
+            show = True
+        else:
+            show = False
+        self.__figure.subplots_adjust(bottom=0.25)
+        ax = self.__figure.add_subplot(*(self.__fig_dims + [grid_pos]))
+        title = 'Resource utilization for all %s\ncomponents matching \"%s\"' % \
+            (ctype, name_filt)
+        ax.set_title(title)
+        ax.set_ylabel('Resource Utilization (%)')
+        if comps:
+            ind = np.arange(len(comps))
+            width = 0.95/len(attrs)
+            rects = []
+            ymax = 100
+            for i in range(len(attrs)):
+                utilz = [self.__sim_core.lookup(c).get_utilization(attrs[i]) * 100 for c in comps]
+                rects.append(ax.bar(ind + width*i, utilz, width, color=colors[i%len(colors)]))
+                ymax = max(ymax, int(math.ceil(max(utilz) / 100.0)) * 100)
+            ax.set_ylim([0,ymax])
+            ax.set_yticks(list(range(0,ymax,10)))
+            ax.set_xticks(ind + 0.5)
+            ax.set_xticklabels(comps, rotation=90)
+            ax.legend(rects, attrs)
+            ax.grid(b=True, which='both', color='0.65',linestyle='--')
+        ax.plot([0, len(comps)], [100, 100], "k--", linewidth=3.0)
+        if show:
+            self.show_figure()
+
+    def plot_consumption_latency(self, stream_filt='.*', consumer_filt='.*', grid_pos=1):
+        streams = list()
+        for c in sorted(self.__sim_core.list_components(comptype.consumer, consumer_filt)):
+            for s in sorted(self.__sim_core.lookup(c).get_items()):
+                if (re.match(stream_filt, s)):
+                    streams.append((c, s, c + '/' + s))
+
+        if not self.__figure:
+            self.new_figure()
+            show = True
+        else:
+            show = False
+        self.__figure.subplots_adjust(bottom=0.25)
+        ax = self.__figure.add_subplot(*(self.__fig_dims + [grid_pos]))
+        title = 'Latency of Maximal Path Terminating in\nStream(s) matching \"%s\"\n(Consumer Filter = \"%s\")' % \
+            (stream_filt, consumer_filt)
+        ax.set_title(title)
+        ax.set_ylabel('Maximal Source-to-Sink Latency (s)')
+        if streams:
+            ind = np.arange(len(streams))
+            latency = [self.__sim_core.lookup(c_s_d1[0]).get_latency(c_s_d1[1]) for c_s_d1 in streams]
+            rects = [ax.bar(ind, latency, 1.0, color='b')]
+            ax.set_xticks(ind + 0.5)
+            ax.set_xticklabels([c_s_d[2] for c_s_d in streams], rotation=90)
+            attrs = ['latency']
+            ax.legend(rects, attrs)
+            ax.yaxis.set_major_formatter(mticker.FormatStrFormatter('%.2e'))
+            ax.grid(b=True, which='both', color='0.65',linestyle='--')
+        if show:
+            self.show_figure()
+
+    def plot_path_latency(self, stream_id, consumer_filt = '.*', grid_pos=1):
+        path = []
+        latencies = []
+        for c in self.__sim_core.list_components(comptype.consumer, consumer_filt):
+            for s in self.__sim_core.lookup(c).get_items():
+                if (stream_id == s):
+                    for h in self.__sim_core.lookup(c).get_hops(s):
+                        path.append(h)
+                        latencies.append(self.__sim_core.lookup(c).get_latency(s, h))
+                    break
+        if not self.__figure:
+            self.new_figure()
+            show = True
+        else:
+            show = False
+        self.__figure.subplots_adjust(bottom=0.25)
+        ax = self.__figure.add_subplot(*(self.__fig_dims + [grid_pos]))
+        title = 'Accumulated Latency per Hop for Stream \"%s\"\n(Consumer Filter = \"%s\")' % \
+            (stream_id, consumer_filt)
+        ax.set_title(title)
+        ax.set_ylabel('Maximal Source-to-Sink Latency (s)')
+        if path:
+            ind = np.arange(len(path))
+            rects = [ax.plot(ind, latencies, '--rs')]
+            ax.set_xticks(ind)
+            ax.set_xticklabels(path, rotation=90)
+            ax.yaxis.set_major_formatter(mticker.FormatStrFormatter('%.2e'))
+            ax.grid(b=True, which='both', color='0.65',linestyle='--')
+        if show:
+            self.show_figure()
@@ -0,0 +1,142 @@
+#!/usr/bin/env python
+#
+# Copyright 2016 Ettus Research
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+import rfnocsim
+import ni_hw_models as hw
+import colosseum_models
+import argparse
+import re
+
+def main():
+    # Arguments
+    parser = argparse.ArgumentParser(description='Simulate the Colosseum network')
+    parser.add_argument('--topology', type=str, default='flb', choices=['torus','flb'], help='Topology')
+    parser.add_argument('--domain', type=str, default='time', choices=['time','frequency'], help='Domain')
+    parser.add_argument('--fir_taps', type=int, default=4, help='FIR Filter Taps (Time domain only)')
+    parser.add_argument('--fir_dly_line', type=int, default=512, help='FIR Delay Line (Time domain only)')
+    parser.add_argument('--fft_size', type=int, default=512, help='FFT Size (Frequency domain only)')
+    parser.add_argument('--fft_overlap', type=int, default=256, help='FFT Overlap (Frequency domain only)')
+    parser.add_argument('--samp_rate', type=float, default=100e6, help='Radio Channel Sample Rate')
+    parser.add_argument('--coherence_rate', type=float, default=1000, help='Channel coefficient update rate')
+    args = parser.parse_args()
+
+    sim_core = rfnocsim.SimulatorCore(tick_rate=100e6)
+    NUM_USRPS   = 128
+    NUM_HOSTS   = 4
+    NUM_BLADES  = 16
+    NUM_CHANS   = NUM_USRPS * 2
+
+    # Build an application settings structure
+    app_settings = dict()
+    app_settings['domain'] = args.domain
+    app_settings['samp_rate'] = args.samp_rate
+    app_settings['coherence_rate'] = args.coherence_rate
+    if args.domain == 'frequency':
+        app_settings['fft_size'] = args.fft_size
+        app_settings['fft_overlap'] = args.fft_overlap
+    else:
+        app_settings['fir_taps'] = args.fir_taps
+        app_settings['fir_dly_line'] = args.fir_dly_line
+
+    print('[INFO] Instantiating hardware resources...')
+    # Create USRPs
+    usrps = []
+    for i in range(NUM_USRPS):
+        usrps.append(hw.UsrpX310(sim_core, index=i, app_settings=app_settings))
+    # Create BEE7s
+    bee7blades = []
+    for i in range(NUM_BLADES):
+        bee7blades.append(hw.Bee7Blade(sim_core, index=i))
+    # Create Management Hosts
+    hosts = []
+    for i in range(NUM_HOSTS):
+        hosts.append(hw.ManagementHostandSwitch(sim_core, index=i,
+            num_coeffs=pow(NUM_CHANS,2)/NUM_HOSTS, switch_ports=16, app_settings=app_settings))
+
+    # Build topology
+    print('[INFO] Building topology...')
+    if args.topology == 'torus':
+        colosseum_models.Topology_2D_4x4_Torus.connect(sim_core, usrps, bee7blades, hosts, app_settings)
+    elif args.topology == 'flb':
+        colosseum_models.Topology_3D_4x4_FLB.connect(sim_core, usrps, bee7blades, hosts, app_settings)
+    else:
+        raise RuntimeError('Invalid topology: ' + args.topology)
+
+    print('[INFO] Running simulation...')
+    sim_core.run(16e-9)
+
+    # Sanity checks
+    print('[INFO] Validating correctness...')
+    for u in sim_core.list_components(rfnocsim.comptype.hardware, 'USRP.*'):
+        sim_core.lookup(u).validate(0)
+    print('[INFO] Validating feasibility...')
+    for u in sim_core.list_components('', '.*'):
+        c = sim_core.lookup(u)
+        for a in c.get_util_attrs():
+            if c.get_utilization(a) > 1.0:
+                print('[WARN] %s: %s overutilized by %.1f%%' % (u,a,(c.get_utilization(a)-1)*100))
+    print('[INFO] Validating BEE7 FPGA image IO consistency...')
+    master_fpga = 'BEE7_000/FPGA_NE'
+    master_stats = dict()
+    for u in sim_core.list_components('', master_fpga + '/.*SER_.*'):
+        c = sim_core.lookup(u)
+        m = re.match('(.+)/(SER_.*)', u)
+        master_stats[m.group(2)] = c.get_utilization('bandwidth')
+    for ln in master_stats:
+        for u in sim_core.list_components('', '.*/' + ln):
+            c = sim_core.lookup(u)
+            m = re.match('(.+)/(SER_.*)', u)
+            if (c.get_utilization('bandwidth') != master_stats[ln]):
+                print('[WARN] Data flowing over ' + ln + ' is probably different between ' + master_fpga + ' and ' + m.group(1))
+
+    # Visualize various metrics
+    vis = rfnocsim.Visualizer(sim_core)
+    vis.show_network()
+    vis.new_figure([1,2])
+    vis.plot_utilization(rfnocsim.comptype.hardware, 'BEE7.*', 1)
+    vis.plot_utilization(rfnocsim.comptype.producer, 'USRP.*', 2)
+    vis.show_figure()
+    vis.new_figure([1,2])
+    vis.plot_utilization(rfnocsim.comptype.channel, 'BEE7_000.*FPGA_NW.*EXT.*', 1)
+    vis.plot_utilization(rfnocsim.comptype.channel, 'BEE7_006.*FPGA_SE.*EXT.*', 2)
+    vis.show_figure()
+    vis.new_figure([1,3])
+    vis.plot_utilization(rfnocsim.comptype.channel, 'BEE7_010.*FPGA_NW.*SER_EW_.*', 1)
+    vis.plot_utilization(rfnocsim.comptype.channel, 'BEE7_010.*FPGA_NW.*SER_NS_.*', 2)
+    vis.plot_utilization(rfnocsim.comptype.channel, 'BEE7_010.*FPGA_NW.*SER_XX_.*', 3)
+    vis.show_figure()
+    vis.new_figure([1,4])
+    vis.plot_utilization(rfnocsim.comptype.channel, 'BEE7_000.*FPGA_NW.*EXT.*', 1)
+    vis.plot_utilization(rfnocsim.comptype.channel, 'BEE7_001.*FPGA_NW.*EXT.*', 2)
+    vis.plot_utilization(rfnocsim.comptype.channel, 'BEE7_002.*FPGA_NW.*EXT.*', 3)
+    vis.plot_utilization(rfnocsim.comptype.channel, 'BEE7_003.*FPGA_NW.*EXT.*', 4)
+    vis.show_figure()
+    vis.new_figure([1,4])
+    vis.plot_utilization(rfnocsim.comptype.channel, 'BEE7_010.*FPGA_NW.*EXT.*', 1)
+    vis.plot_utilization(rfnocsim.comptype.channel, 'BEE7_010.*FPGA_NE.*EXT.*', 2)
+    vis.plot_utilization(rfnocsim.comptype.channel, 'BEE7_010.*FPGA_SW.*EXT.*', 3)
+    vis.plot_utilization(rfnocsim.comptype.channel, 'BEE7_010.*FPGA_SE.*EXT.*', 4)
+    vis.show_figure()
+    vis.new_figure([1,2])
+    vis.plot_consumption_latency('.*','.*USRP_.*', 1)
+    vis.plot_path_latency('tx[(0)]', '.*', 2)
+    vis.show_figure()
+    vis.plot_utilization(rfnocsim.comptype.producer, '.*MGMT_HOST.*')
+
+if __name__ == '__main__':
+    main()
@@ -0,0 +1,386 @@
+#!/usr/bin/python3
+#
+# Copyright 2018 Ettus Research, a National Instruments Company
+#
+# SPDX-License-Identifier: LGPL-3.0-or-later
+#
+
+import argparse
+import os
+import sys
+import subprocess
+import logging
+import re
+import io
+import time
+import datetime
+from queue import Queue
+from threading import Thread
+
+#-------------------------------------------------------
+# Utilities
+#-------------------------------------------------------
+
+SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
+BASE_DIR = os.path.split(os.path.split(SCRIPT_DIR)[0])[0]
+
+_LOG = logging.getLogger(os.path.basename(__file__))
+_LOG.setLevel(logging.INFO)
+_STDOUT = logging.StreamHandler()
+_LOG.addHandler(_STDOUT)
+_FORMATTER = logging.Formatter('[%(name)s] - %(levelname)s - %(message)s')
+_STDOUT.setFormatter(_FORMATTER)
+
+RETCODE_SUCCESS     = 0
+RETCODE_PARSE_ERR   = -1
+RETCODE_EXEC_ERR    = -2
+RETCODE_COMPILE_ERR = -3
+RETCODE_UNKNOWN_ERR = -4
+
+def retcode_to_str(code):
+    """ Convert internal status code to string
+    """
+    code = int(code)
+    if code > RETCODE_SUCCESS:
+        return 'AppError({code})'.format(code=code)
+    else:
+        return {RETCODE_SUCCESS:'OK',
+            RETCODE_PARSE_ERR:'ParseError', 
+            RETCODE_EXEC_ERR:'ExecError', 
+            RETCODE_COMPILE_ERR:'CompileError', 
+            RETCODE_UNKNOWN_ERR:'UnknownError'
+        }[code]
+
+def log_with_header(what, minlen = 0, ch = '#'):
+    """ Print with a header around the text
+    """
+    padlen = max(int((minlen - len(what))/2), 1) 
+    toprint = (' '*padlen) + what + (' '*padlen)
+    _LOG.info(ch * len(toprint))
+    _LOG.info(toprint)
+    _LOG.info(ch * len(toprint))
+
+#-------------------------------------------------------
+# Simulation Functions
+#-------------------------------------------------------
+
+def read_excludes_file(excludes_fname):
+    if excludes_fname:
+        return [ l.strip() for l in open(excludes_fname) if (l.strip() and '#' not in l)]
+    else:
+        return []
+
+def find_sims_on_fs(basedir, excludes):
+    """ Find all testbenches in the specific basedir
+        Testbenches are defined as directories with a
+        Makefile that includes viv_sim_preamble.mak
+    """
+    sims = {}
+    for root, _, files in os.walk(basedir):
+        name = os.path.relpath(root, basedir)
+        if 'Makefile' in files:
+            with open(os.path.join(root, 'Makefile'), 'r') as mfile:
+                for l in mfile.readlines():
+                    if re.match('.*include.*viv_sim_preamble.mak.*', l) is not None:
+                        if name not in excludes:
+                            sims.update({name: root})
+                            break
+    return sims
+
+def gather_target_sims(basedir, targets, excludes):
+    """ Parse the specified targets and gather simulations to run
+        Remove duplicates and sort alphabetically
+    """
+    fs_sims = find_sims_on_fs(basedir, excludes)
+    if not isinstance(targets, list):
+        targets = [targets]
+    sim_names = set()
+    for target in targets:
+        for name in sorted(fs_sims):
+            if re.match(target, name) is not None:
+                sim_names.add(name)
+    target_sims = []
+    for name in sorted(sim_names):
+        target_sims.append((name, fs_sims[name]))
+    return target_sims
+
+def parse_output(simout):
+    # Gather results (basic metrics)
+    results = {'retcode':RETCODE_SUCCESS, 'stdout':simout, 'passed':False}
+    # Look for the following in the log:
+    # - A start timestamp (indicates that Vivado started)
+    # - The testbench infrastructure start header (indicates that the TB started)
+    # - A stop timestamp (indicates that the TB stopped)
+    tb_started = False
+    compile_started = False
+    results['start_time'] = '<unknown>'
+    results['wall_time'] = '<unknown>'
+    for line in simout.split(b'\n'):
+        tsm = re.match(rb'TESTBENCH STARTED: (.+)', line)
+        if tsm is not None:
+            tb_started = True
+        csm = re.match(rb'source .*viv_sim_project.tcl', line)
+        if csm is not None:
+            compile_started = True
+        vsm = re.match(rb'# Start of session at: (.+)', line)
+        if vsm is not None:
+            results['start_time'] = str(vsm.group(1), 'ascii')
+        tfm = re.match(rb'launch_simulation:.*; elapsed = (.+) \..*', line)
+        if tfm is not None:
+            results['wall_time'] = str(tfm.group(1), 'ascii')
+    # Parse testbench results
+    # We have two possible formats to parse because we have two simulation
+    # test executors.
+    tb_match_fmt0 = ([
+        b'.*TESTBENCH FINISHED: (.+)\n',
+        b' - Time elapsed:   (.+) ns.*\n',
+        b' - Tests Expected: (.+)\n',
+        b' - Tests Run:      (.+)\n',
+        b' - Tests Passed:   (.+)\n',
+        b'Result: (PASSED|FAILED).*',
+    ])
+    m_fmt0 = re.match(b''.join(tb_match_fmt0), simout, re.DOTALL)
+    tb_match_fmt1 = ([
+        b'.*TESTBENCH FINISHED: (.*)\n',
+        b' - Time elapsed:  (.+) ns.*\n',
+        b' - Tests Run:     (.+)\n',
+        b' - Tests Passed:  (.+)\n',
+        b' - Tests Failed:  (.+)\n',
+        b'Result: (PASSED|FAILED).*',
+    ])
+    m_fmt1 = re.match(b''.join(tb_match_fmt1), simout, re.DOTALL)
+
+    # Remove escape characters (colors) from Vivado output
+    ansi_escape = re.compile(r'(?:\x1B[\(@-_]|[\x80-\x9F])[0-?]*[ -/]*[@-~]')
+    plain_simout = ansi_escape.sub('', simout.decode("utf-8"))
+
+    # Check for $error() and $fatal() output, which may be missed by the
+    # testbench or may occur in a subsequent instance, after a pass.
+    tb_match_error = ([
+        '\n',
+        '(Error|Fatal): .*\n',
+        'Time: .+\n',
+    ])
+    m_error = re.search(''.join(tb_match_error), plain_simout)
+
+    # Figure out the returncode 
+    retcode = RETCODE_UNKNOWN_ERR
+    if m_fmt0 is not None or m_fmt1 is not None:
+        retcode = RETCODE_SUCCESS
+        if m_fmt0 is not None:
+            results['passed'] = (m_fmt0.group(6) == b'PASSED' and m_error is None)
+            results['module'] = m_fmt0.group(1)
+            results['sim_time_ns'] = int(m_fmt0.group(2))
+            results['tc_expected'] = int(m_fmt0.group(3))
+            results['tc_run'] = int(m_fmt0.group(4))
+            results['tc_passed'] = int(m_fmt0.group(5))
+        else:
+            results['passed'] = (m_fmt1.group(6) == b'PASSED' and m_error is None)
+            results['module'] = m_fmt1.group(1)
+            results['sim_time_ns'] = int(m_fmt1.group(2))
+            results['tc_expected'] = int(m_fmt1.group(3))
+            results['tc_run'] = int(m_fmt1.group(3))
+            results['tc_passed'] = int(m_fmt1.group(4))
+    elif tb_started:
+        retcode = RETCODE_PARSE_ERR
+    elif compile_started:
+        retcode = RETCODE_COMPILE_ERR
+    else:
+        retcode = RETCODE_EXEC_ERR
+    results['retcode'] = retcode
+    return results
+
+def run_sim(path, simulator, basedir, setupenv):
+    """ Run the simulation at the specified path
+        The simulator can be specified as the target
+        A environment script can be run optionally
+    """
+    try:
+        # Optionally run an environment setup script
+        if setupenv is None:
+            setupenv = ''
+            # Check if environment was setup
+            if 'VIVADO_PATH' not in os.environ:
+                return {'retcode': RETCODE_EXEC_ERR, 'passed':False, 'stdout':bytes('Simulation environment was not initialized\n', 'utf-8')}
+        else:
+            setupenv = '. ' + os.path.realpath(setupenv) + ';'
+        # Run the simulation
+        return parse_output(
+            subprocess.check_output(
+                'cd {workingdir}; /bin/bash -c "{setupenv} make {simulator} 2>&1"'.format(
+                    workingdir=os.path.join(basedir, path), setupenv=setupenv, simulator=simulator), shell=True))
+    except subprocess.CalledProcessError as e:
+        return {'retcode': int(abs(e.returncode)), 'passed':False, 'stdout':e.output}
+    except Exception as e:
+        _LOG.error('Target ' + path + ' failed to run:\n' + str(e))
+        return {'retcode': RETCODE_EXEC_ERR, 'passed':False, 'stdout':bytes(str(e), 'utf-8')}
+    except:
+        _LOG.error('Target ' + path + ' failed to run')
+        return {'retcode': RETCODE_UNKNOWN_ERR, 'passed':False, 'stdout':bytes('Unknown Exception', 'utf-8')}
+
+def run_sim_queue(run_queue, out_queue, simulator, basedir, setupenv):
+    """ Thread worker for a simulation runner
+        Pull a job from the run queue, run the sim, then place
+        output in out_queue
+    """
+    while not run_queue.empty():
+        (name, path) = run_queue.get()
+        try:
+            _LOG.info('Starting: %s', name)
+            result = run_sim(path, simulator, basedir, setupenv)
+            out_queue.put((name, result))
+            _LOG.info('FINISHED: %s (%s, %s)', name, retcode_to_str(result['retcode']), 'PASS' if result['passed'] else 'FAIL!')
+        except KeyboardInterrupt:
+            _LOG.warning('Target ' + name + ' received SIGINT. Aborting...')
+            out_queue.put((name, {'retcode': RETCODE_EXEC_ERR, 'passed':False, 'stdout':bytes('Aborted by user', 'utf-8')}))
+        except Exception as e:
+            _LOG.error('Target ' + name + ' failed to run:\n' + str(e))
+            out_queue.put((name, {'retcode': RETCODE_UNKNOWN_ERR, 'passed':False, 'stdout':bytes(str(e), 'utf-8')}))
+        finally:
+            run_queue.task_done()
+
+#-------------------------------------------------------
+# Script Actions
+#-------------------------------------------------------
+
+def do_list(args):
+    """ List all simulations that can be run
+    """
+    excludes = read_excludes_file(args.excludes)
+    for (name, path) in gather_target_sims(args.basedir, args.target, excludes):
+        print(name)
+    return 0
+
+def do_run(args):
+    """ Build a simulation queue based on the specified
+        args and process it
+    """
+    run_queue = Queue(maxsize=0)
+    out_queue = Queue(maxsize=0)
+    _LOG.info('Queueing the following targets to simulate:')
+    excludes = read_excludes_file(args.excludes)
+    name_maxlen = 0
+    for (name, path) in gather_target_sims(args.basedir, args.target, excludes):
+        run_queue.put((name, path))
+        name_maxlen = max(name_maxlen, len(name))
+        _LOG.info('* ' + name)
+    # Spawn tasks to run builds
+    num_sims = run_queue.qsize()
+    num_jobs = min(num_sims, int(args.jobs))
+    _LOG.info('Started ' + str(num_jobs) + ' job(s) to process queue...')
+    results = {}
+    for i in range(num_jobs):
+        worker = Thread(target=run_sim_queue, args=(run_queue, out_queue, args.simulator, args.basedir, args.setupenv))
+        worker.setDaemon(False)
+        worker.start()
+    # Wait for build queue to become empty
+    start = datetime.datetime.now()
+    try:
+        while out_queue.qsize() < num_sims:
+            tdiff = str(datetime.datetime.now() - start).split('.', 2)[0]
+            print("\r>>> [%s] (%d/%d simulations completed) <<<" % (tdiff, out_queue.qsize(), num_sims), end='\r', flush=True)
+            time.sleep(1.0)
+        sys.stdout.write("\n")
+    except (KeyboardInterrupt):
+        _LOG.warning('Received SIGINT. Aborting... (waiting for pending jobs to finish)')
+        # Flush run queue
+        while not run_queue.empty():
+            (name, path) = run_queue.get()
+        raise SystemExit(1)
+
+    results = {}
+    result_all = 0
+    while not out_queue.empty():
+        (name, result) = out_queue.get()
+        results[name] = result
+        log_with_header(name)
+        sys.stdout.buffer.write(result['stdout'])
+        if not result['passed']:
+            result_all += 1
+    sys.stdout.write('\n\n\n')
+    sys.stdout.flush()
+    time.sleep(1.0)
+
+    hdr_len = name_maxlen + 62 # 62 is the report line length
+    log_with_header('RESULTS', hdr_len)
+    for name in sorted(results):
+        r = results[name]
+        if 'module' in r:
+            _LOG.info('* %s : %s (Expected=%02d, Run=%02d, Passed=%02d, Elapsed=%s)',
+                name.ljust(name_maxlen), ('Passed' if r['passed'] else 'FAILED'), r['tc_expected'], r['tc_run'], r['tc_passed'], r['wall_time'])
+        else:
+            _LOG.info('* %s : %s (Status = %s)', name.ljust(name_maxlen), ('Passed' if r['passed'] else 'FAILED'), 
+                retcode_to_str(r['retcode']))
+    _LOG.info('='*hdr_len)
+    _LOG.info('SUMMARY: %d out of %d tests passed. Time elapsed was %s'%(num_sims - result_all, num_sims, str(datetime.datetime.now() - start).split('.', 2)[0]))   
+    _LOG.info('#'*hdr_len)
+    return result_all
+
+
+def do_cleanup(args):
+    """ Run make cleanall for all simulations
+    """
+    setupenv = args.setupenv
+    if setupenv is None:
+        setupenv = ''
+        # Check if environment was setup
+        if 'VIVADO_PATH' not in os.environ:
+            raise RuntimeError('Simulation environment was not initialized')
+    else:
+        setupenv = '. ' + os.path.realpath(setupenv) + ';'
+    excludes = read_excludes_file(args.excludes)
+    for (name, path) in gather_target_sims(args.basedir, args.target, excludes):
+        _LOG.info('Cleaning up %s', name)
+        os.chdir(os.path.join(args.basedir, path))
+        subprocess.Popen('{setupenv} make cleanall'.format(setupenv=setupenv), shell=True).wait()
+    return 0
+
+def do_report(args):
+    """ List all simulations that can be run
+    """
+    keys = ['module', 'status', 'retcode', 'start_time', 'wall_time',
+            'sim_time_ns', 'tc_expected', 'tc_run', 'tc_passed']
+    with open(args.report, 'w') as repfile:
+        repfile.write((','.join([x.upper() for x in keys])) + '\n')
+        excludes = read_excludes_file(args.excludes)
+        for (name, path) in gather_target_sims(args.basedir, args.target, excludes):
+            results = {'module': str(name), 'status':'NOT_RUN', 'retcode':'<unknown>', 
+                       'start_time':'<unknown>', 'wall_time':'<unknown>', 'sim_time_ns':0,
+                       'tc_expected':0, 'tc_run':0, 'tc_passed':0}
+            logpath = os.path.join(path, args.simulator + '.log')
+            if os.path.isfile(logpath):
+                with open(logpath, 'rb') as logfile:
+                    r = parse_output(logfile.read())
+                    if r['retcode'] != RETCODE_SUCCESS:
+                        results['retcode'] = retcode_to_str(r['retcode'])
+                        results['status'] = 'ERROR'
+                        results['start_time'] = r['start_time']
+                    else:
+                        results = r
+                        results['module'] = name
+                        results['status'] = 'PASSED' if r['passed'] else 'FAILED'
+                        results['retcode'] = retcode_to_str(r['retcode'])
+            repfile.write((','.join([str(results[x]) for x in keys])) + '\n')
+    _LOG.info('Testbench report written to ' + args.report)
+    return 0
+
+# Parse command line options
+def get_options():
+    parser = argparse.ArgumentParser(description='Batch testbench execution script')
+    parser.add_argument('-d', '--basedir', default=BASE_DIR, help='Base directory for the usrp3 codebase')
+    parser.add_argument('-s', '--simulator', choices=['xsim', 'vsim'], default='xsim', help='Simulator name')
+    parser.add_argument('-e', '--setupenv', default=None, help='Optional environment setup script to run for each TB')
+    parser.add_argument('-r', '--report', default='testbench_report.csv', help='Name of the output report file')
+    parser.add_argument('-x', '--excludes', default=None, help='Name of the excludes file. It contains all targets to exlude.')
+    parser.add_argument('-j', '--jobs', default=1, help='Number of parallel simulation jobs to run')
+    parser.add_argument('action', choices=['run', 'cleanup', 'list', 'report'], default='list', help='What to do?')
+    parser.add_argument('target', nargs='*', default='.*', help='Space separated simulation target regexes')
+    return parser.parse_args()
+
+def main():
+    args = get_options()
+    actions = {'list': do_list, 'run': do_run, 'cleanup': do_cleanup, 'report': do_report}
+    return actions[args.action](args)
+
+if __name__ == '__main__':
+    exit(main())
@@ -0,0 +1,15 @@
+# This file contains all testbenches to exlcude from the filter
+# list discovered by run_testbenches.py
+# NOTE: Lines containing "#" are treated as a comment
+
+lib/rfnoc/noc_block_eq_tb
+lib/rfnoc/noc_block_ofdm_tb
+lib/rfnoc/noc_block_schmidl_cox_tb
+top/e31x/sim/dram_test
+top/n3xx/sim/arm_to_sfp_loopback
+top/n3xx/sim/aurora_loopback
+top/n3xx/sim/one_gig_eth_loopback
+top/n3xx/sim/ten_gig_eth_loopback
+top/x300/sim/x300_pcie_int
+top/n3xx/dboards/eiscat/radio/noc_block_ddc_eiscat_tb
+top/n3xx/dboards/eiscat/radio/noc_block_radio_core_eiscat_tb