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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2
README.md
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@@ -120,6 +120,7 @@ Attributes:
* `data`: bytearray
* `error`: error field, optional; list, each entry qualifies the corresponding entry in `data`.
* `sim_time_start`: simulation time of first transfer cycle of frame.
* `sim_time_sfd`: simulation time at which the SFD was transferred.
* `sim_time_end`: simulation time of last transfer cycle of frame.
* `start_lane`: byte lane in which the start control character was transferred.
* `tx_complete`: event or callable triggered when frame is transmitted.
@@ -387,6 +388,7 @@ Attributes:
* `data`: bytearray
* `ctrl`: control field, optional; list, each entry qualifies the corresponding entry in `data` as an XGMII control character.
* `sim_time_start`: simulation time of first transfer cycle of frame.
* `sim_time_sfd`: simulation time at which the SFD was transferred.
* `sim_time_end`: simulation time of last transfer cycle of frame.
* `start_lane`: byte lane in which the start control character was transferred.
* `tx_complete`: event or callable triggered when frame is transmitted.

11
cocotbext/eth/gmii.py
View File

@@ -41,6 +41,7 @@ class GmiiFrame:
self.data = bytearray()
self.error = None
self.sim_time_start = None
self.sim_time_sfd = None
self.sim_time_end = None
self.tx_complete = None
@@ -48,6 +49,7 @@ class GmiiFrame:
self.data = bytearray(data.data)
self.error = data.error
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.tx_complete = data.tx_complete
else:
@@ -114,6 +116,7 @@ class GmiiFrame:
f"{type(self).__name__}(data={self.data!r}, "
f"error={self.error!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})"
)
@@ -253,7 +256,10 @@ class GmiiSource(Reset):
self.active = True
if frame is not None:
self.data <= frame.data.pop(0)
d = frame.data.pop(0)
if frame.sim_time_sfd is None and d in (EthPre.SFD, 0xD):
frame.sim_time_sfd = get_sim_time()
self.data <= d
if self.er is not None:
self.er <= frame.error.pop(0)
self.dv <= 1
@@ -420,6 +426,9 @@ class GmiiSink(Reset):
frame = None
if frame is not None:
if frame.sim_time_sfd is None and d_val in (EthPre.SFD, 0xD):
frame.sim_time_sfd = get_sim_time()
frame.data.append(d_val)
frame.error.append(er_val)

8
cocotbext/eth/mii.py
View File

@@ -155,7 +155,10 @@ class MiiSource(Reset):
self.active = True
if frame is not None:
self.data <= frame.data.pop(0)
d = frame.data.pop(0)
if frame.sim_time_sfd is None and d == 0xD:
frame.sim_time_sfd = get_sim_time()
self.data <= d
if self.er is not None:
self.er <= frame.error.pop(0)
self.dv <= 1
@@ -314,6 +317,9 @@ class MiiSink(Reset):
frame = None
if frame is not None:
if frame.sim_time_sfd is None and d_val == 0xD:
frame.sim_time_sfd = get_sim_time()
frame.data.append(d_val)
frame.error.append(er_val)

6
cocotbext/eth/rgmii.py
View File

@@ -166,6 +166,9 @@ class RgmiiSource(Reset):
er = frame.error.pop(0)
en = 1
if frame.sim_time_sfd is None and d in (EthPre.SFD, 0xD, 0xDD):
frame.sim_time_sfd = get_sim_time()
if not frame.data:
ifg_cnt = max(self.ifg, 1)
frame.sim_time_end = get_sim_time()
@@ -339,6 +342,9 @@ class RgmiiSink(Reset):
frame = None
if frame is not None:
if frame.sim_time_sfd is None and d_val in (EthPre.SFD, 0xD, 0xDD):
frame.sim_time_sfd = get_sim_time()
frame.data.append(d_val)
frame.error.append(er_val)

11
cocotbext/eth/xgmii.py
View File

@@ -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)