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[minigraph] remove number of lanes check for changing speed from 400G to 100G and set speed setting before lane reconfiguration #16452

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merged 2 commits into from
Sep 7, 2023
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[minigraph] remove number of lanes check for changing speed from 400G to 100G and set speed setting before lane reconfiguration #16452

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320ae27
[minigraph] remove number of lanes check for changing speed from 400G…
vdahiya12 Aug 4, 2023
ee21dc8
fix UT
vdahiya12 Sep 6, 2023
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6 changes: 4 additions & 2 deletions src/sonic-config-engine/minigraph.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1736,7 +1736,10 @@ def parse_xml(filename, platform=None, port_config_file=None, asic_name=None, hw
port_default_speed = port_speeds_default.get(port_name, None)
port_png_speed = port_speed_png[port_name]

# when the port speed is changes from 400g to 100g/40g
# set Port Speed before lane update
ports.setdefault(port_name, {})['speed'] = port_png_speed

# when the port speed is changes from 400g to 100g/40g
# update the port lanes, use the first 4 lanes of the 400G port to support 100G/40G port
if port_default_speed == '400000' and (port_png_speed == '100000' or port_png_speed == '40000'):
port_lanes = ports[port_name].get('lanes', '').split(',')
Expand All @@ -1746,7 +1749,6 @@ def parse_xml(filename, platform=None, port_config_file=None, asic_name=None, hw
updated_lanes = ",".join(port_lanes[:4])
ports[port_name]['lanes'] = updated_lanes

ports.setdefault(port_name, {})['speed'] = port_speed_png[port_name]

for port_name, port in list(ports.items()):
# get port alias from port_config.ini
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