bslathi19/cocotbext-eth
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Handle dropped transmit frames during reset

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This commit is contained in:
Alex Forencich
2021-03-21 14:08:27 -07:00
parent f4054cfd65
commit 63e6eafc07
4 changed files with 32 additions and 0 deletions
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8
cocotbext/eth/mii.py
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@@ -55,6 +55,7 @@ class MiiSource(Reset):
self.active = False
self.queue = Queue()
self.current_frame = None
self.idle_event = Event()
self.idle_event.set()
@@ -124,6 +125,11 @@ class MiiSource(Reset):
self.er <= 0
self.dv <= 0
if self.current_frame:
self.log.warning("Flushed transmit frame during reset: %s", self.current_frame)
self.current_frame.handle_tx_complete()
self.current_frame = None
if self.queue.empty():
self.idle_event.set()
else:
@@ -149,6 +155,7 @@ class MiiSource(Reset):
frame = self.queue.get_nowait()
self.queue_occupancy_bytes -= len(frame)
self.queue_occupancy_frames -= 1
self.current_frame = frame
frame.sim_time_start = get_sim_time()
frame.sim_time_sfd = None
frame.sim_time_end = None
@@ -181,6 +188,7 @@ class MiiSource(Reset):
frame.sim_time_end = get_sim_time()
frame.handle_tx_complete()
frame = None
self.current_frame = None
else:
self.data <= 0
if self.er is not None: