[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 =  '56623104' %}
+{% set ingress_lossy_pool_size =  '56623104' %}
+{% set egress_lossless_pool_size =  '60817392' %}
+{% set egress_lossy_pool_size =  '56623104' %}
+
+{%- 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": {
+{% for port in port_names.split(',') %}
+        "{{ port }}": {
+            "profile_list" : "[BUFFER_PROFILE|ingress_lossless_profile],[BUFFER_PROFILE|ingress_lossy_profile]"
+        }{% if not loop.last %},{% endif %}
+
+{% endfor %}
+    },
+    "BUFFER_PORT_EGRESS_PROFILE_LIST": {
+{% for port in port_names.split(',') %}
+        "{{ port }}": {
+            "profile_list" : "[BUFFER_PROFILE|egress_lossless_profile],[BUFFER_PROFILE|egress_lossy_profile]"
+        }{% if not loop.last %},{% endif %}
+
+{% endfor %}
+    }
+{%- endmacro %}
+
+{%- macro generate_queue_buffers(port_names) %}
+    "BUFFER_QUEUE": {
+{% for port in port_names.split(',') %}
+        "{{ port }}|3-4": {
+            "profile" : "[BUFFER_PROFILE|egress_lossless_profile]"
+        },
+{% endfor %}
+{% for port in port_names.split(',') %}
+        "{{ port }}|0-2": {
+            "profile" : "[BUFFER_PROFILE|q_lossy_profile]"
+        },
+{% endfor %}
+{% for port in port_names.split(',') %}
+        "{{ port }}|5-6": {
+            "profile" : "[BUFFER_PROFILE|q_lossy_profile]"
+        }{% if not loop.last %},{% endif %}
+
+{% endfor %}
+    }
+{%- 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 =  '36011952' %}
+{% set ingress_lossy_pool_size =  '36011952' %}
+{% set egress_lossless_pool_size =  '60817392' %}
+{% set egress_lossy_pool_size =  '36011952' %}
+
+{%- 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": {
+{% for port in port_names.split(',') %}
+        "{{ port }}": {
+            "profile_list" : "[BUFFER_PROFILE|ingress_lossless_profile],[BUFFER_PROFILE|ingress_lossy_profile]"
+        }{% if not loop.last %},{% endif %}
+
+{% endfor %}
+    },
+    "BUFFER_PORT_EGRESS_PROFILE_LIST": {
+{% for port in port_names.split(',') %}
+        "{{ port }}": {
+            "profile_list" : "[BUFFER_PROFILE|egress_lossless_profile],[BUFFER_PROFILE|egress_lossy_profile]"
+        }{% if not loop.last %},{% endif %}
+
+{% endfor %}
+    }
+{%- endmacro %}
+
+{%- macro generate_queue_buffers(port_names) %}
+    "BUFFER_QUEUE": {
+{% for port in port_names.split(',') %}
+        "{{ port }}|3-4": {
+            "profile" : "[BUFFER_PROFILE|egress_lossless_profile]"
+        },
+{% endfor %}
+{% for port in port_names.split(',') %}
+        "{{ port }}|0-2": {
+            "profile" : "[BUFFER_PROFILE|q_lossy_profile]"
+        },
+{% endfor %}
+{% for port in port_names.split(',') %}
+        "{{ port }}|5-6": {
+            "profile" : "[BUFFER_PROFILE|q_lossy_profile]"
+        }{% if not loop.last %},{% endif %}
+
+{% endfor %}
+    }
+{%- 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      32768   18432   14336    0
+10000    5m      32768   18432   14336    0
+25000    5m      33792   18432   15360    0
+40000    5m      33792   18432   15360    0
+50000    5m      33792   18432   15360    0
+100000   5m      35840   18432   17408    0
+200000   5m      37888   18432   19456    0
+400000   5m      43008   18432   24576    0
+1000     40m     32768   18432   14336    0
+10000    40m     34816   18432   16384    0
+25000    40m     37888   18432   19456    0
+40000    40m     40960   18432   22528    0
+50000    40m     43008   18432   24576    0
+100000   40m     53248   18432   34816    0
+200000   40m     72704   18432   54272    0
+400000   40m     112640  18432   94208    0
+1000     300m    34816   18432   16384    0
+10000    300m    48128   18432   29696    0
+25000    300m    70656   18432   52224    0
+40000    300m    93184   18432   74752    0
+50000    300m    108544  18432   90112    0
+100000   300m    183296  18432   164864   0
+200000   300m    333824  18432   315392   0
+400000   300m    634880  18432   616448   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             etp1
+Ethernet4       4,5,6,7             etp2
+Ethernet8       8,9,10,11           etp3
+Ethernet12      12,13,14,15         etp4
+Ethernet16      16,17,18,19         etp5
+Ethernet20      20,21,22,23         etp6
+Ethernet24      24,25,26,27         etp7
+Ethernet28      28,29,30,31         etp8
+Ethernet32      32,33,34,35         etp9
+Ethernet36      36,37,38,39         etp10
+Ethernet40      40,41,42,43         etp11
+Ethernet44      44,45,46,47         etp12
+Ethernet48      48,49,50,51         etp13
+Ethernet52      52,53,54,55         etp14
+Ethernet56      56,57,58,59         etp15
+Ethernet60      60,61,62,63         etp16
+Ethernet64      64,65,66,67         etp17
+Ethernet68      68,69,70,71         etp18
+Ethernet72      72,73,74,75         etp19
+Ethernet76      76,77,78,79         etp20
+Ethernet80      80,81,82,83         etp21
+Ethernet84      84,85,86,87         etp22
+Ethernet88      88,89,90,91         etp23
+Ethernet92      92,93,94,95         etp24
+Ethernet96      96,97,98,99         etp25
+Ethernet100     100,101,102,103     etp26
+Ethernet104     104,105,106,107     etp27
+Ethernet108     108,109,110,111     etp28
+Ethernet112     112,113,114,115     etp29
+Ethernet116     116,117,118,119     etp30
+Ethernet120     120,121,122,123     etp31
+Ethernet124     124,125,126,127     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_100G.xml