[Mellanox] Add SN5640 SIMX platform with default SKU

device/mellanox/x86_64-nvidia_sn5640_simx-r0/ACS-SN5640/buffers.json.j2

@@ -0,0 +1 @@
+../../x86_64-mlnx_msn2700-r0/Mellanox-SN2700-D48C8/buffers.json.j2

device/mellanox/x86_64-nvidia_sn5640_simx-r0/ACS-SN5640/buffers_defaults_objects.j2

@@ -0,0 +1 @@
+../../x86_64-mlnx_msn2700-r0/Mellanox-SN2700-D48C8/buffers_defaults_objects.j2

device/mellanox/x86_64-nvidia_sn5640_simx-r0/ACS-SN5640/buffers_defaults_t0.j2

@@ -0,0 +1,47 @@
+{#
+    Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES.
+    Apache-2.0
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+#}
+{% set default_cable = '40m' %}
+{% set ingress_lossless_pool_size =  '57828352' %}
+{% set ingress_lossless_pool_xoff =  '22544384' %}
+{% set egress_lossless_pool_size =  '136209408' %}
+{% set egress_lossy_pool_size =  '57828352' %}
+
+{% import 'buffers_defaults_objects.j2' as defs with context %}
+
+{%- macro generate_buffer_pool_and_profiles_with_inactive_ports(port_names_inactive) %}
+{{ defs.generate_buffer_pool_and_profiles_with_inactive_ports(port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_profile_lists_with_inactive_ports(port_names_active, port_names_inactive) %}
+{{ defs.generate_profile_lists(port_names_active, port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_queue_buffers_with_extra_lossless_queues_with_inactive_ports(port_names_active, port_names_extra_queues, port_names_inactive) %}
+{{ defs.generate_queue_buffers_with_extra_lossless_queues(port_names_active, port_names_extra_queues, port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_queue_buffers_with_inactive_ports(port_names_active, port_names_inactive) %}
+{{ defs.generate_queue_buffers(port_names_active, port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_pg_profiles_with_extra_lossless_pgs_with_inactive_ports(port_names_active, port_names_extra_pgs, port_names_inactive) %}
+{{ defs.generate_pg_profiles_with_extra_lossless_pgs(port_names_active, port_names_extra_pgs, port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_pg_profiles_with_inactive_ports(port_names_active, port_names_inactive) %}
+{{ defs.generate_pg_profiles(port_names_active, port_names_inactive) }}
+{%- endmacro %}

device/mellanox/x86_64-nvidia_sn5640_simx-r0/ACS-SN5640/buffers_defaults_t1.j2

@@ -0,0 +1,47 @@
+{#
+    Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES.
+    Apache-2.0
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+#}
+{% set default_cable = '300m' %}
+{% set ingress_lossless_pool_size =  '40002560' %}
+{% set ingress_lossless_pool_xoff =  '40370176' %}
+{% set egress_lossless_pool_size =  '136209408' %}
+{% set egress_lossy_pool_size =  '40002560' %}
+
+{% import 'buffers_defaults_objects.j2' as defs with context %}
+
+{%- macro generate_buffer_pool_and_profiles_with_inactive_ports(port_names_inactive) %}
+{{ defs.generate_buffer_pool_and_profiles_with_inactive_ports(port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_profile_lists_with_inactive_ports(port_names_active, port_names_inactive) %}
+{{ defs.generate_profile_lists(port_names_active, port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_queue_buffers_with_extra_lossless_queues_with_inactive_ports(port_names_active, port_names_extra_queues, port_names_inactive) %}
+{{ defs.generate_queue_buffers_with_extra_lossless_queues(port_names_active, port_names_extra_queues, port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_queue_buffers_with_inactive_ports(port_names_active, port_names_inactive) %}
+{{ defs.generate_queue_buffers(port_names_active, port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_pg_profiles_with_extra_lossless_pgs_with_inactive_ports(port_names_active, port_names_extra_pgs, port_names_inactive) %}
+{{ defs.generate_pg_profiles_with_extra_lossless_pgs(port_names_active, port_names_extra_pgs, port_names_inactive) }}
+{%- endmacro %}
+
+{%- macro generate_pg_profiles_with_inactive_ports(port_names_active, port_names_inactive) %}
+{{ defs.generate_pg_profiles(port_names_active, port_names_inactive) }}
+{%- endmacro %}

device/mellanox/x86_64-nvidia_sn5640_simx-r0/ACS-SN5640/buffers_dynamic.json.j2

@@ -0,0 +1,16 @@
+{#
+    Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES.
+    Apache-2.0
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+#}
+{%- set default_topo = 't0' %}
+{%- set dynamic_mode = 'true' %}
+{%- include 'buffers_config.j2' %}

device/mellanox/x86_64-nvidia_sn5640_simx-r0/ACS-SN5640/create_only_config_db_buffers.json

@@ -0,0 +1,7 @@
+{
+    "DEVICE_METADATA": {
+        "localhost": {
+            "create_only_config_db_buffers": "true"
+        }
+    }
+}

device/mellanox/x86_64-nvidia_sn5640_simx-r0/ACS-SN5640/hwsku.json

@@ -0,0 +1,202 @@
+{
+    "interfaces": {
+        "Ethernet0": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet8": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet16": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet24": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet32": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet40": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet48": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet56": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet64": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet72": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet80": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet88": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet96": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet104": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet112": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet120": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet128": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet136": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet144": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet152": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet160": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet168": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet176": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet184": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet192": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet200": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet208": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet216": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet224": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet232": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet240": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet248": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet256": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet264": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet272": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet280": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet288": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet296": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet304": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet312": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet320": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet328": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet336": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet344": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet352": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet360": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet368": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet376": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet384": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet392": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet400": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet408": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet416": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet424": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet432": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet440": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet448": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet456": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet464": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet472": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet480": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet488": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet496": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet504": {
+            "default_brkout_mode": "8x100G[50G]"
+        },
+        "Ethernet512": {
+            "default_brkout_mode": "1x25G[10G]"
+        },
+        "Ethernet520": {
+            "default_brkout_mode": "1x25G[10G]"
+        }
+    }
+}

device/mellanox/x86_64-nvidia_sn5640_simx-r0/ACS-SN5640/pg_profile_lookup.ini

@@ -0,0 +1,42 @@
+##
+## Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES.
+## Apache-2.0
+##
+## Licensed under the Apache License, Version 2.0 (the "License");
+## you may not use this file except in compliance with the License.
+## You may obtain a copy of the License at
+##
+## http://www.apache.org/licenses/LICENSE-2.0
+##
+## Unless required by applicable law or agreed to in writing, software
+## distributed under the License is distributed on an "AS IS" BASIS,
+## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+## See the License for the specific language governing permissions and
+## limitations under the License.
+##
+#  PG lossless profiles.
+# speed cable  size   xon    xoff   threshold
+10000      5m  19456  19456  20480          0
+25000      5m  19456  19456  21504          0
+50000      5m  19456  19456  26624          0
+100000     5m  19456  19456  44032          0
+200000     5m  19456  19456  50176          0
+400000     5m  19456  19456  86016          0
+10000     30m  19456  19456  20480          0
+25000     30m  19456  19456  22528          0
+50000     30m  19456  19456  27648          0
+100000    30m  19456  19456  48128          0
+200000    30m  19456  19456  57344          0
+400000    30m  19456  19456  99328          0
+10000     40m  19456  19456  20480          0
+25000     40m  19456  19456  22528          0
+50000     40m  19456  19456  28672          0
+100000    40m  19456  19456  49152          0
+200000    40m  19456  19456  60416          0
+400000    40m  19456  19456  104448         0
+10000    300m  19456  19456  23552          0
+25000    300m  19456  19456  30720          0
+50000    300m  19456  19456  46080          0
+100000   300m  19456  19456  83968          0
+200000   300m  19456  19456  130048         0
+400000   300m  19456  19456  243712         0