bslathi19/cocotbext-eth
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Store SFD transfer sim time

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This commit is contained in:
Alex Forencich
2021-01-03 23:28:33 -08:00
parent 1bd01ae879
commit aa97848450
5 changed files with 35 additions and 3 deletions
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11
cocotbext/eth/xgmii.py
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@@ -41,6 +41,7 @@ class XgmiiFrame:
self.data = bytearray()
self.ctrl = None
self.sim_time_start = None
self.sim_time_sfd = None
self.sim_time_end = None
self.start_lane = None
self.tx_complete = None
@@ -49,6 +50,7 @@ class XgmiiFrame:
self.data = bytearray(data.data)
self.ctrl = data.ctrl
self.sim_time_start = data.sim_time_start
self.sim_time_sfd = data.sim_time_sfd
self.sim_time_end = data.sim_time_end
self.start_lane = data.start_lane
self.tx_complete = data.tx_complete
@@ -116,6 +118,7 @@ class XgmiiFrame:
f"{type(self).__name__}(data={self.data!r}, "
f"ctrl={self.ctrl!r}, "
f"sim_time_start={self.sim_time_start!r}, "
f"sim_time_sfd={self.sim_time_sfd!r}, "
f"sim_time_end={self.sim_time_end!r}, "
f"start_lane={self.start_lane!r})"
)
@@ -281,7 +284,10 @@ class XgmiiSource(Reset):
for k in range(self.byte_width):
if frame is not None:
d_val |= frame.data.pop(0) << k*8
d = frame.data.pop(0)
if frame.sim_time_sfd is None and d == EthPre.SFD:
frame.sim_time_sfd = get_sim_time()
d_val |= d << k*8
c_val |= frame.ctrl.pop(0) << k
if not frame.data:
@@ -422,5 +428,8 @@ class XgmiiSink(Reset):
frame = None
else:
if frame.sim_time_sfd is None and d_val == EthPre.SFD:
frame.sim_time_sfd = get_sim_time()
frame.data.append(d_val)
frame.ctrl.append(c_val)