bslathi19/cocotbext-eth
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Put sources and sinks to sleep when idle

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Signed-off-by: Alex Forencich <alex@alexforencich.com>
This commit is contained in:
Alex Forencich
2023-01-24 17:42:05 -08:00
parent dd35d734f9
commit 37b23c358b
4 changed files with 73 additions and 7 deletions
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16
cocotbext/eth/gmii.py
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@@ -157,6 +157,7 @@ class GmiiSource(Reset):
self.current_frame = None
self.idle_event = Event()
self.idle_event.set()
self.active_event = Event()
self.ifg = 12
self.mii_mode = False
@@ -189,6 +190,7 @@ class GmiiSource(Reset):
frame = GmiiFrame(frame)
await self.queue.put(frame)
self.idle_event.clear()
self.active_event.set()
self.queue_occupancy_bytes += len(frame)
self.queue_occupancy_frames += 1
@@ -198,6 +200,7 @@ class GmiiSource(Reset):
frame = GmiiFrame(frame)
self.queue.put_nowait(frame)
self.idle_event.clear()
self.active_event.set()
self.queue_occupancy_bytes += len(frame)
self.queue_occupancy_frames += 1
@@ -225,6 +228,7 @@ class GmiiSource(Reset):
frame.handle_tx_complete()
self.dequeue_event.set()
self.idle_event.set()
self.active_event.clear()
self.queue_occupancy_bytes = 0
self.queue_occupancy_frames = 0
@@ -251,6 +255,7 @@ class GmiiSource(Reset):
if self.queue.empty():
self.idle_event.set()
self.active_event.clear()
else:
self.log.info("Reset de-asserted")
if self._run_cr is None:
@@ -332,7 +337,11 @@ class GmiiSource(Reset):
self.er.value = 0
self.dv.value = 0
self.active = False
self.idle_event.set()
if ifg_cnt == 0 and self.queue.empty():
self.idle_event.set()
self.active_event.clear()
await self.active_event.wait()
elif self.enable is not None and not self.enable.value:
await enable_event
@@ -439,6 +448,8 @@ class GmiiSink(Reset):
clock_edge_event = RisingEdge(self.clock)
active_event = RisingEdge(self.dv)
enable_event = None
if self.enable is not None:
enable_event = RisingEdge(self.enable)
@@ -503,6 +514,9 @@ class GmiiSink(Reset):
frame.data.append(d_val)
frame.error.append(er_val)
if not dv_val:
await active_event
elif self.enable is not None and not self.enable.value:
await enable_event