def __init__(self, lane_count, seqn_width, layout_payload):
self.input = [
Record(layouts.output_network_node(seqn_width, layout_payload))
for _ in range(lane_count)
]
self.output = None
step_input = self.input
for step in boms_steps_pairs(lane_count):
step_output = []
for i in range(lane_count):
rec = Record(layouts.output_network_node(
seqn_width, layout_payload),
reset_less=True)
rec.valid.reset_less = False
step_output.append(rec)
for node1, node2 in step:
nondata_difference = Signal()
for field, _ in layout_payload:
if field != "data":
f1 = getattr(step_input[node1].payload, field)
f2 = getattr(step_input[node2].payload, field)
self.comb += If(f1 != f2, nondata_difference.eq(1))
k1 = Cat(step_input[node1].payload.channel,
~step_input[node1].valid)
k2 = Cat(step_input[node2].payload.channel,
~step_input[node2].valid)
self.sync += [
If(
k1 == k2,
If(
cmp_wrap(step_input[node1].seqn,
step_input[node2].seqn),
step_output[node1].eq(step_input[node2]),
step_output[node2].eq(step_input[node1])).Else(
step_output[node1].eq(step_input[node1]),
step_output[node2].eq(step_input[node2])),
step_output[node1].replace_occured.eq(1),
step_output[node1].nondata_replace_occured.eq(
nondata_difference),
step_output[node2].valid.eq(0),
).Elif(k1 < k2, step_output[node1].eq(step_input[node1]),
step_output[node2].eq(step_input[node2])).Else(
step_output[node1].eq(step_input[node2]),
step_output[node2].eq(step_input[node1]))
]
unchanged = list(range(lane_count))
for node1, node2 in step:
unchanged.remove(node1)
unchanged.remove(node2)
for node in unchanged:
self.sync += step_output[node].eq(step_input[node])
self.output = step_output
step_input = step_output
def __init__(self, lane_count, seqn_width, layout_payload):
self.input = [Record(layouts.output_network_node(seqn_width, layout_payload))
for _ in range(lane_count)]
self.output = None
step_input = self.input
for step in boms_steps_pairs(lane_count):
step_output = []
for i in range(lane_count):
rec = Record(layouts.output_network_node(seqn_width, layout_payload),
reset_less=True)
rec.valid.reset_less = False
step_output.append(rec)
for node1, node2 in step:
nondata_difference = Signal()
for field, _ in layout_payload:
if field != "data":
f1 = getattr(step_input[node1].payload, field)
f2 = getattr(step_input[node2].payload, field)
self.comb += If(f1 != f2, nondata_difference.eq(1))
k1 = Cat(step_input[node1].payload.channel, ~step_input[node1].valid)
k2 = Cat(step_input[node2].payload.channel, ~step_input[node2].valid)
self.sync += [
If(k1 == k2,
If(cmp_wrap(step_input[node1].seqn, step_input[node2].seqn),
step_output[node1].eq(step_input[node2]),
step_output[node2].eq(step_input[node1])
).Else(
step_output[node1].eq(step_input[node1]),
step_output[node2].eq(step_input[node2])
),
step_output[node1].replace_occured.eq(1),
step_output[node1].nondata_replace_occured.eq(nondata_difference),
step_output[node2].valid.eq(0),
).Elif(k1 < k2,
step_output[node1].eq(step_input[node1]),
step_output[node2].eq(step_input[node2])
).Else(
step_output[node1].eq(step_input[node2]),
step_output[node2].eq(step_input[node1])
)
]
unchanged = list(range(lane_count))
for node1, node2 in step:
unchanged.remove(node1)
unchanged.remove(node2)
for node in unchanged:
self.sync += step_output[node].eq(step_input[node])
self.output = step_output
step_input = step_output
def __init__(self, lane_count, seqn_width, layout_fifo_payload, layout_output_network_payload):
self.input = [Record(layouts.fifo_egress(seqn_width, layout_fifo_payload))
for _ in range(lane_count)]
self.output = [Record(layouts.output_network_node(seqn_width, layout_output_network_payload),
reset_less=True)
for _ in range(lane_count)]
if hasattr(self.output[0].payload, "fine_ts"):
glbl_fine_ts_width = len(self.output[0].payload.fine_ts)
else:
glbl_fine_ts_width = 0
self.coarse_timestamp = Signal(64-glbl_fine_ts_width)
# # #
for input, output in zip(self.input, self.output):
for field, _ in output.payload.layout:
if field == "fine_ts":
self.sync += output.payload.fine_ts.eq(input.payload.timestamp[:glbl_fine_ts_width])
else:
self.sync += getattr(output.payload, field).eq(getattr(input.payload, field))
self.sync += output.seqn.eq(input.seqn)
self.comb += [
output.replace_occured.eq(0),
output.nondata_replace_occured.eq(0)
]
self.comb += input.re.eq(input.payload.timestamp[glbl_fine_ts_width:] == self.coarse_timestamp)
output.valid.reset_less = False
self.sync += output.valid.eq(input.re & input.readable)