[Mellanox] Add a new Mellanox platform x86_64-mlnx_msn4700 and new SKU ACS-MSN4700

device/mellanox/x86_64-mlnx_msn4700-r0/ACS-MSN4700/buffers.json.j2

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+../../x86_64-mlnx_msn2700-r0/ACS-MSN2700/buffers.json.j2

device/mellanox/x86_64-mlnx_msn4700-r0/ACS-MSN4700/buffers_defaults_t0.j2

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+{% set default_cable = '5m' %}
+{% set ingress_lossless_pool_size =  '30973952' %}
+{% set ingress_lossy_pool_size =  '30973952' %}
+{% set egress_lossless_pool_size =  '67108864' %}
+{% set egress_lossy_pool_size =  '30973952' %}
+
+{%- macro generate_port_lists(PORT_ALL) %}
+    {# Generate list of ports #}
+    {%- for port_idx in range(0, 32) %}
+        {%- if PORT_ALL.append("Ethernet%d" % (port_idx)) %}{%- endif %}
+    {%- endfor %}
+{%- endmacro %}
+
+{%- macro generate_buffer_pool_and_profiles() %}
+    "BUFFER_POOL": {
+        "ingress_lossless_pool": {
+            "size": "{{ ingress_lossless_pool_size }}",
+            "type": "ingress",
+            "mode": "dynamic"
+        },
+        "ingress_lossy_pool": {
+            "size": "{{ ingress_lossy_pool_size }}",
+            "type": "ingress",
+            "mode": "dynamic"
+        },
+        "egress_lossless_pool": {
+            "size": "{{ egress_lossless_pool_size }}",
+            "type": "egress",
+            "mode": "dynamic"
+        },
+        "egress_lossy_pool": {
+            "size": "{{ egress_lossy_pool_size }}",
+            "type": "egress",
+            "mode": "dynamic"
+        }
+    },
+    "BUFFER_PROFILE": {
+        "ingress_lossless_profile": {
+            "pool":"[BUFFER_POOL|ingress_lossless_pool]",
+            "size":"0",
+            "dynamic_th":"0"
+        },
+        "ingress_lossy_profile": {
+            "pool":"[BUFFER_POOL|ingress_lossy_pool]",
+            "size":"0",
+            "dynamic_th":"3"
+        },
+        "egress_lossless_profile": {
+            "pool":"[BUFFER_POOL|egress_lossless_pool]",
+            "size":"0",
+            "dynamic_th":"7"
+        },
+        "egress_lossy_profile": {
+            "pool":"[BUFFER_POOL|egress_lossy_pool]",
+            "size":"4096",
+            "dynamic_th":"3"
+        },
+        "q_lossy_profile": {
+            "pool":"[BUFFER_POOL|egress_lossy_pool]",
+            "size":"0",
+            "dynamic_th":"3"
+        }
+    },
+{%- endmacro %}
+
+{%- macro generate_profile_lists(port_names) %}
+    "BUFFER_PORT_INGRESS_PROFILE_LIST": {
+        "{{ port_names }}": {
+            "profile_list" : "[BUFFER_PROFILE|ingress_lossless_profile],[BUFFER_PROFILE|ingress_lossy_profile]"
+        }
+    },
+    "BUFFER_PORT_EGRESS_PROFILE_LIST": {
+        "{{ port_names }}": {
+            "profile_list" : "[BUFFER_PROFILE|egress_lossless_profile],[BUFFER_PROFILE|egress_lossy_profile]"
+        }
+    }
+{%- endmacro %}
+
+{%- macro generate_queue_buffers(port_names) %}
+    "BUFFER_QUEUE": {
+        "{{ port_names }}|3-4": {
+            "profile" : "[BUFFER_PROFILE|egress_lossless_profile]"
+        },
+        "{{ port_names }}|0-1": {
+            "profile" : "[BUFFER_PROFILE|q_lossy_profile]"
+        },
+        "{{ port_names }}|5": {
+            "profile" : "[BUFFER_PROFILE|q_lossy_profile]"
+        }
+    }
+{%- endmacro %}

device/mellanox/x86_64-mlnx_msn4700-r0/ACS-MSN4700/buffers_defaults_t1.j2

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+{% set default_cable = '5m' %}
+{% set ingress_lossless_pool_size =  '19283968' %}
+{% set ingress_lossy_pool_size =  '19283968' %}
+{% set egress_lossless_pool_size =  '67108864' %}
+{% set egress_lossy_pool_size =  '19283968' %}
+
+{%- macro generate_port_lists(PORT_ALL) %}
+    {# Generate list of ports #}
+    {%- for port_idx in range(0, 32) %}
+        {%- if PORT_ALL.append("Ethernet%d" % (port_idx)) %}{%- endif %}
+    {%- endfor %}
+{%- endmacro %}
+
+{%- macro generate_buffer_pool_and_profiles() %}
+    "BUFFER_POOL": {
+        "ingress_lossless_pool": {
+            "size": "{{ ingress_lossless_pool_size }}",
+            "type": "ingress",
+            "mode": "dynamic"
+        },
+        "ingress_lossy_pool": {
+            "size": "{{ ingress_lossy_pool_size }}",
+            "type": "ingress",
+            "mode": "dynamic"
+        },
+        "egress_lossless_pool": {
+            "size": "{{ egress_lossless_pool_size }}",
+            "type": "egress",
+            "mode": "dynamic"
+        },
+        "egress_lossy_pool": {
+            "size": "{{ egress_lossy_pool_size }}",
+            "type": "egress",
+            "mode": "dynamic"
+        }
+    },
+    "BUFFER_PROFILE": {
+        "ingress_lossless_profile": {
+            "pool":"[BUFFER_POOL|ingress_lossless_pool]",
+            "size":"0",
+            "dynamic_th":"0"
+        },
+        "ingress_lossy_profile": {
+            "pool":"[BUFFER_POOL|ingress_lossy_pool]",
+            "size":"0",
+            "dynamic_th":"3"
+        },
+        "egress_lossless_profile": {
+            "pool":"[BUFFER_POOL|egress_lossless_pool]",
+            "size":"0",
+            "dynamic_th":"7"
+        },
+        "egress_lossy_profile": {
+            "pool":"[BUFFER_POOL|egress_lossy_pool]",
+            "size":"4096",
+            "dynamic_th":"3"
+        },
+        "q_lossy_profile": {
+            "pool":"[BUFFER_POOL|egress_lossy_pool]",
+            "size":"0",
+            "dynamic_th":"3"
+        }
+    },
+{%- endmacro %}
+
+{%- macro generate_profile_lists(port_names) %}
+    "BUFFER_PORT_INGRESS_PROFILE_LIST": {
+        "{{ port_names }}": {
+            "profile_list" : "[BUFFER_PROFILE|ingress_lossless_profile],[BUFFER_PROFILE|ingress_lossy_profile]"
+        }
+    },
+    "BUFFER_PORT_EGRESS_PROFILE_LIST": {
+        "{{ port_names }}": {
+            "profile_list" : "[BUFFER_PROFILE|egress_lossless_profile],[BUFFER_PROFILE|egress_lossy_profile]"
+        }
+    }
+{%- endmacro %}
+
+{%- macro generate_queue_buffers(port_names) %}
+    "BUFFER_QUEUE": {
+        "{{ port_names }}|3-4": {
+            "profile" : "[BUFFER_PROFILE|egress_lossless_profile]"
+        },
+        "{{ port_names }}|0-1": {
+            "profile" : "[BUFFER_PROFILE|q_lossy_profile]"
+        },
+        "{{ port_names }}|5": {
+            "profile" : "[BUFFER_PROFILE|q_lossy_profile]"
+        }
+    }
+{%- endmacro %}

device/mellanox/x86_64-mlnx_msn4700-r0/ACS-MSN4700/pg_profile_lookup.ini

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+# speed    cable   size      xon      xoff      threshold
+   1000    5m      35840     18432    17408     0
+  10000    5m      36864     18432    18432     0
+  25000    5m      36864     18432    18432     0
+  40000    5m      36864     18432    18432     0
+  50000    5m      37888     18432    19456     0
+ 100000    5m      38912     18432    20480     0
+ 200000    5m      41984     18432    23552     0
+ 400000    5m      48128     19456    28672     0
+   1000    40m     36864     18432    18432     0
+  10000    40m     38912     18432    20480     0
+  25000    40m     41984     18432    23552     0
+  40000    40m     45056     18432    26624     0
+  50000    40m     47104     18432    28672     0
+ 100000    40m     59392     18432    40960     0
+ 200000    40m     81920     18432    63488     0
+ 400000	   40m     128000    19456    108544    0
+   1000    300m    37888     18432    19456     0
+  10000    300m    53248     18432    34816     0
+  25000    300m    78848     18432    60416     0
+  40000    300m    104448    18432    86016     0
+  50000    300m    121856    18432    103424    0
+ 100000    300m    206848    18432    188416    0
+ 200000    300m    376832    18432    358400    0
+ 400000    300m    718848    19456    699392    0

device/mellanox/x86_64-mlnx_msn4700-r0/ACS-MSN4700/port_config.ini

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+# name          lanes                               alias
+Ethernet0       0,1,2,3,4,5,6,7                     etp1
+Ethernet8       8,9,10,11,12,13,14,15               etp2
+Ethernet16      16,17,18,19,20,21,22,23             etp3
+Ethernet24      24,25,26,27,28,29,30,31             etp4
+Ethernet32      32,33,34,35,36,37,38,39             etp5
+Ethernet40      40,41,42,43,44,45,46,47             etp6
+Ethernet48      48,49,50,51,52,53,54,55             etp7
+Ethernet56      56,57,58,59,60,61,62,63             etp8
+Ethernet64      64,65,66,67,68,69,70,71             etp9
+Ethernet72      72,73,74,75,76,77,78,79             etp10
+Ethernet80      80,81,82,83,84,85,86,87             etp11
+Ethernet88      88,89,90,91,92,93,94,95             etp12
+Ethernet96      96,97,98,99,100,101,102,103         etp13
+Ethernet104     104,105,106,107,108,109,110,111     etp14
+Ethernet112     112,113,114,115,116,117,118,119     etp15
+Ethernet120     120,121,122,123,124,125,126,127     etp16
+Ethernet128     128,129,130,131,132,133,134,135     etp17
+Ethernet136     136,137,138,139,140,141,142,143     etp18
+Ethernet144     144,145,146,147,148,149,150,151     etp19
+Ethernet152     152,153,154,155,156,157,158,159     etp20
+Ethernet160     160,161,162,163,164,165,166,167     etp21
+Ethernet168     168,169,170,171,172,173,174,175     etp22
+Ethernet176     176,177,178,179,180,181,182,183     etp23
+Ethernet184     184,185,186,187,188,189,190,191     etp24
+Ethernet192     192,193,194,195,196,197,198,199     etp25
+Ethernet200     200,201,202,203,204,205,206,207     etp26
+Ethernet208     208,209,210,211,212,213,214,215     etp27
+Ethernet216     216,217,218,219,220,221,222,223     etp28
+Ethernet224     224,225,226,227,228,229,230,231     etp29
+Ethernet232     232,233,234,235,236,237,238,239     etp30
+Ethernet240     240,241,242,243,244,245,246,247     etp31
+Ethernet248     248,249,250,251,252,253,254,255     etp32

device/mellanox/x86_64-mlnx_msn4700-r0/ACS-MSN4700/qos.json.j2

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+../../x86_64-mlnx_msn2700-r0/ACS-MSN2700/qos.json.j2

device/mellanox/x86_64-mlnx_msn4700-r0/ACS-MSN4700/sai.profile

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+SAI_INIT_CONFIG_FILE=/usr/share/sonic/hwsku/sai_4700.xml