bslathi19/taxi
1
0
Fork 0
mirror of https://github.com/fpganinja/taxi.git synced 2026-07-18 14:11:18 -07:00
Code Issues Packages Projects Releases Wiki Activity

eth: Add support for SGMII symbol replication to BASE-X sink model

Browse Source 
Signed-off-by: Alex Forencich <alex@alexforencich.com>
This commit is contained in:
Alex Forencich
2026-07-08 21:38:08 -07:00
parent 473db729bf
commit 55acea8705
1 changed files with 17 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
src/eth/tb/basex.py
View File

@@ -16,9 +16,6 @@ from cocotb.queue import Queue, QueueFull
from cocotb.triggers import RisingEdge, Timer, First, Event
from cocotb.utils import get_sim_time
# from cocotbext.eth.constants import (EthPre, XgmiiCtrl, BaseRCtrl, BaseRO,
# BaseRSync, BaseRBlockType, xgmii_ctrl_to_baser_mapping,
# baser_ctrl_to_xgmii_mapping, block_type_term_lane_mapping)
from cocotbext.eth.constants import EthPre, XgmiiCtrl
from cocotbext.eth import GmiiFrame
@@ -536,6 +533,8 @@ class BaseXSerdesSink:
self.queue_occupancy_bytes = 0
self.queue_occupancy_frames = 0
self.gmii_rep_count = 0
self.an_cfg = None
self.an_ability_match_cnt = 0
self.an_ack_match_cnt = 0
@@ -605,6 +604,12 @@ class BaseXSerdesSink:
continue
self.gbx_bit_cnt += in_bits
def set_gmii_rep_count(self, rep=0):
self.gmii_rep_count = int(rep)
def get_gmii_rep_count(self):
return self.gmii_rep_count
def get_an_cfg(self):
an_cfg = self.an_cfg
self.an_cfg = None
@@ -680,6 +685,8 @@ class BaseXSerdesSink:
an_cfg = None
last_an_cfg = 0
skip_cnt = 0
while True:
await clock_edge_event
@@ -784,7 +791,7 @@ class BaseXSerdesSink:
self.active_event.set()
frame = None
else:
elif skip_cnt == 0:
# normal frame data
if frame.sim_time_sfd is None and not in_pre:
frame.sim_time_sfd = sim_time + (clk_period // self.byte_lanes * k) + gbx_delay
@@ -833,6 +840,7 @@ class BaseXSerdesSink:
frame = GmiiFrame(bytearray([EthPre.PRE]), [False])
frame.sim_time_start = sim_time + (clk_period // self.byte_lanes * k) + gbx_delay
in_pre = True
skip_cnt = 0
else:
self.log.warning("Ignoring unaligned start")
elif d_val == XgmiiCtrl.ERROR:
@@ -859,6 +867,11 @@ class BaseXSerdesSink:
self.an_ack_match_cnt = 0
self.an_idle_match_cnt += 1
if skip_cnt > 0:
skip_cnt -= 1
elif self.gmii_rep_count:
skip_cnt = self.gmii_rep_count
if an_cnt_reset:
self.an_ability_match_cnt = 0
self.an_ack_match_cnt = 0