[QoS] Support dynamic headroom calculation for Barefoot platforms (#11708)

Signed-off-by: Mariusz Stachura <mariusz.stachura@intel.com>

What I did
Adding the dynamic headroom calculation support for Barefoot platforms.

Why I did it
Enabling dynamic mode for barefoot case.

How I verified it
The community tests are adjusted and pass.

device/barefoot/x86_64-accton_as9516_32d-r0/newport/buffers_defaults_t0.j2

@@ -1,12 +1,12 @@
 {% set default_cable = '5m' %}
-{% set ingress_lossless_pool_size =  '23850816' %}
+{% set ingress_lossless_pool_size = '43067728' %}
-{% set ingress_lossy_pool_size =  '36222208' %}
+{% set ingress_lossy_pool_size = '3520000' %}
-{% set egress_lossless_pool_size =  '29482816' %}
+{% set egress_lossless_pool_size = '46749824' %}
-{% set egress_lossy_pool_size =  '26400000' %}
+{% set egress_lossy_pool_size = '2463824' %}
 
 {%- macro generate_port_lists(PORT_ALL) %}
     {# Generate list of ports #}
-    {%- for port_idx in range(0,32) %}
+    {%- for port_idx in range(0, 32) %}
         {%- if PORT_ALL.append("Ethernet%d" % (port_idx * 4)) %}{%- endif %}
     {%- endfor %}
 {%- endmacro %}
@@ -15,6 +15,9 @@
     "BUFFER_POOL": {
         "ingress_lossless_pool": {
             "size": "{{ ingress_lossless_pool_size }}",
+            {%- if dynamic_mode is defined %}
+            "xoff": "3153920",
+            {%- endif %}
             "type": "ingress",
             "mode": "dynamic"
         },

device/barefoot/x86_64-accton_as9516_32d-r0/newport/buffers_defaults_t1.j2

@@ -1,12 +1,12 @@
 {% set default_cable = '5m' %}
-{% set ingress_lossless_pool_size =  '23850816' %}
+{% set ingress_lossless_pool_size = '43067728' %}
-{% set ingress_lossy_pool_size =  '36222208' %}
+{% set ingress_lossy_pool_size = '3520000' %}
-{% set egress_lossless_pool_size =  '29482816' %}
+{% set egress_lossless_pool_size = '46749824' %}
-{% set egress_lossy_pool_size =  '26400000' %}
+{% set egress_lossy_pool_size = '2463824' %}
 
 {%- macro generate_port_lists(PORT_ALL) %}
     {# Generate list of ports #}
-    {%- for port_idx in range(0,32) %}
+    {%- for port_idx in range(0, 32) %}
         {%- if PORT_ALL.append("Ethernet%d" % (port_idx * 4)) %}{%- endif %}
     {%- endfor %}
 {%- endmacro %}
@@ -15,6 +15,9 @@
     "BUFFER_POOL": {
         "ingress_lossless_pool": {
             "size": "{{ ingress_lossless_pool_size }}",
+            {%- if dynamic_mode is defined %}
+            "xoff": "3153920",
+            {%- endif %}
             "type": "ingress",
             "mode": "dynamic"
         },

device/barefoot/x86_64-accton_as9516_32d-r0/newport/buffers_dynamic.json.j2

@@ -0,0 +1,4 @@
+{%- set default_topo = 't0' %}
+{%- set dynamic_mode = 'true' %}
+{%- set shp = 'true' %}
+{%- include 'buffers_config.j2' %}

device/barefoot/x86_64-accton_as9516_32d-r0/newport/switch-tna-sai.conf

@@ -23,7 +23,7 @@
                     ],                   
                     "model_json_path" : "share/switch/aug_model.json",
                     "switchapi_port_add": false,
-                    "non_default_port_ppgs": 5
+                    "non_default_port_ppgs": 6
                 }
             ]
         }
@@ -32,7 +32,7 @@
         {
             "device-id": 0,
             "model_json_path": "share/switch/aug_model.json",
-            "non_default_port_ppgs": 5,
+            "non_default_port_ppgs": 6,
             "switchapi_port_add": false
         }
     ]

device/barefoot/x86_64-accton_as9516_32d-r0/port_peripheral_config.j2

@@ -0,0 +1,10 @@
+[
+    {%- include 'peripheral_table.j2' %}
+    ,
+    {
+        "PORT_PERIPHERAL_TABLE:global": {
+            "gearbox_model": "barefoot"
+        },
+        "OP": "SET"
+    }
+]

files/build_templates/buffers_config.j2

@@ -226,6 +226,11 @@ def
     "DEFAULT_LOSSLESS_BUFFER_PARAMETER": {
         "AZURE": {
             "default_dynamic_th": "0"
+            {%- if shp is defined -%}
+            ,
+            "max_headroom_size" : "0",
+            "over_subscribe_ratio" : "1"
+            {%- endif -%}
         }
     },
     "LOSSLESS_TRAFFIC_PATTERN": {

files/build_templates/sonic_debian_extension.j2

@@ -530,7 +530,7 @@ sudo cp $BUILD_TEMPLATES/buffers_config.j2 $FILESYSTEM_ROOT_USR_SHARE_SONIC_TEMP
 sudo cp $BUILD_TEMPLATES/qos_config.j2 $FILESYSTEM_ROOT_USR_SHARE_SONIC_TEMPLATES/
 
 # Copy the templates for dynamically buffer calculation
-{% if sonic_asic_platform == "mellanox" or sonic_asic_platform == "vs" %}
+{% if sonic_asic_platform == "mellanox" or sonic_asic_platform == "vs" or sonic_asic_platform == "barefoot" %}
 if [ -f platform/{{ sonic_asic_platform }}/asic_table.j2 ]
 then
     sudo cp platform/{{ sonic_asic_platform }}/asic_table.j2 $FILESYSTEM_ROOT/usr/share/sonic/templates/asic_table.j2

platform/barefoot/asic_table.j2

@@ -0,0 +1,24 @@
+{%- if DEVICE_METADATA is defined and DEVICE_METADATA['localhost']['platform'] is defined %}
+{%-     set platform = DEVICE_METADATA['localhost']['platform'] %}
+{%- endif -%}
+
+
+[
+{% set platform2asic = {
+        'x86_64-accton_as9516_32d-r0':'BAREFOOT-TOFINO-2',
+        'x86_64-accton_as9516bf_32d-r0':'BAREFOOT-TOFINO-2'
+    }
+%}
+{% set asic_type = platform2asic[platform] %}
+{% if asic_type == 'BAREFOOT-TOFINO-2' %}
+    {
+        "ASIC_TABLE:BAREFOOT-TOFINO-2": {
+            "cell_size": "176",
+            "pipeline_latency": "68",
+            "mac_phy_delay": "0.8",
+            "peer_response_time": "9"
+        },
+        "OP": "SET"
+    }
+{% endif %}
+]

platform/barefoot/peripheral_table.j2

@@ -0,0 +1,18 @@
+{%- if DEVICE_METADATA is defined and DEVICE_METADATA['localhost']['platform'] is defined %}
+{%-     set platform = DEVICE_METADATA['localhost']['platform'] %}
+{%- endif -%}
+
+{% set platform2gearbox = {
+        'x86_64-accton_as9516_32d-r0':'barefoot',
+        'x86_64-accton_as9516bf_32d-r0':'barefoot'
+    }
+%}
+{% set gearbox_type = platform2gearbox[platform] %}
+{% if gearbox_type == 'barefoot' %}
+    {
+        "PERIPHERAL TABLE:barefoot": {
+            "gearbox_delay" : "365"
+        },
+    "OP": "SET"
+    }
+{% endif %}

platform/barefoot/rules.mk

@@ -33,3 +33,5 @@ endif
 # Runtime dependency on sai is set only for syncd
 #$(SYNCD)_RDEPENDS += $(BFN_SAI) $(WNC_OSW1800_PLATFORM) $(BFN_INGRASYS_PLATFORM) $(BFN_PLATFORM)
 $(SYNCD)_RDEPENDS += $(BFN_SAI) $(BFN_INGRASYS_PLATFORM) $(BFN_PLATFORM)
+
+export SONIC_BUFFER_MODEL=dynamic