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Cherrypick: [Arista] Add LT2 QoS settings for Arista-7060X6-64PE-B-O128 #1674

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Merged
merged 1 commit into from
Oct 9, 2025
Merged

Cherrypick: [Arista] Add LT2 QoS settings for Arista-7060X6-64PE-B-O128 #1674

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7 changes: 6 additions & 1 deletion device/arista/x86_64-arista_7060x6_64pe_b/Arista-7060X6-64PE-B-O128/buffers.json.j2
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@@ -1,2 +1,7 @@
{%- set default_topo = 't1' %}
{# set default_topo based on switch_role #}
{%- if DEVICE_METADATA is defined and 'lowerspinerouter' in DEVICE_METADATA['localhost']['type'].lower() -%}
{%- set default_topo = 'lt2' %}
{%- else %}
{%- set default_topo = 't1' %}
{%- endif %}
{%- include 'buffers_config.j2' %}
1 change: 0 additions & 1 deletion device/arista/x86_64-arista_7060x6_64pe_b/Arista-7060X6-64PE-B-O128/buffers_defaults_lt2.j2
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36 changes: 36 additions & 0 deletions device/arista/x86_64-arista_7060x6_64pe_b/Arista-7060X6-64PE-B-O128/buffers_defaults_lt2.j2
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{%- set default_cable = '5m' %}

{%- include 'buffer_ports.j2' %}

{%- macro generate_buffer_pool_and_profiles() %}
"BUFFER_POOL": {
"ingress_lossless_pool": {
"size": "164075364",
"type": "ingress",
"mode": "dynamic",
"xoff": "49418240"
},
"egress_lossless_pool": {
"size": "164075364",
"type": "egress",
"mode": "static"
}
},
"BUFFER_PROFILE": {
"ingress_lossy_profile": {
"pool": "ingress_lossless_pool",
"size": "0",
"static_th": "165364160"
},
"egress_lossy_profile": {
"pool": "egress_lossless_pool",
"size": "1778",
"dynamic_th": "0"
},
"egress_lossless_profile": {
"pool": "egress_lossless_pool",
"size": "0",
"static_th": "165364160"
}
},
{%- endmacro %}
4 changes: 4 additions & 0 deletions device/arista/x86_64-arista_7060x6_64pe_b/Arista-7060X6-64PE-B-O128/pg_profile_lookup.ini
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@@ -1,5 +1,9 @@
# PG lossless profiles.
# speed cable size xon xoff threshold xon_offset
400000 5m 18796 0 445770 0 3556
400000 30m 8636 0 425958 0 3356
400000 40m 18796 0 445770 0 3556
400000 150m 18796 0 445770 0 3556
400000 500m 8636 0 1136396 0 3356
100000 500m 8636 0 1136396 0 3356

7 changes: 7 additions & 0 deletions device/arista/x86_64-arista_7060x6_64pe_b/Arista-7060X6-64PE-B-O128/qos.json.j2
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@@ -1,3 +1,8 @@
{%- if DEVICE_METADATA is defined and 'lowerspinerouter' in DEVICE_METADATA['localhost']['type'].lower() -%}

{# Do nothing for lt2 #}

{%- else %}
{%- macro generate_dscp_to_tc_map_per_sku() -%}
"DSCP_TO_TC_MAP": {
"AZURE": {
Expand Down Expand Up @@ -158,4 +163,6 @@
},
{%- endmacro -%}

{%- endif %}

{%- include 'qos_config.j2' %}
2 changes: 0 additions & 2 deletions device/arista/x86_64-arista_7060x6_64pe_b/Arista-7060X6-64PE-B-O128/sai.profile
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16 changes: 16 additions & 0 deletions device/arista/x86_64-arista_7060x6_64pe_b/Arista-7060X6-64PE-B-O128/sai.profile.j2
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{# Get sai.profile based on switch_role #}
{%- if DEVICE_METADATA is defined -%}
{%- set switch_role = DEVICE_METADATA['localhost']['type'] -%}
{%- if 'lowerspinerouter' in switch_role.lower() %}
{% set sai_profile_contents = 'SAI_INIT_CONFIG_FILE=/usr/share/sonic/hwsku/th5-a7060x6-64pe-lt2.config.bcm' -%}
{%- else %}
{%- set sai_profile_contents = 'SAI_INIT_CONFIG_FILE=/usr/share/sonic/hwsku/th5-a7060x6-64pe.config.bcm' -%}
{%- endif %}
{%- else %}
{%- set sai_profile_contents = 'SAI_INIT_CONFIG_FILE=/usr/share/sonic/hwsku/th5-a7060x6-64pe.config.bcm' -%}
{%- endif %}
{# Write the contents of sai_ profile_filename to sai.profile file #}
{{ sai_profile_contents }}
SAI_NUM_ECMP_MEMBERS=128
SAI_NHG_HIERARCHICAL_NEXTHOP=false

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