First stab at BNG support in fabric.p4
This implementation is derived from Deutsche Telekom contribution:
https://github.com/opencord/p4se
It supports basic upstream and downstream termination based on double
VLAN tags and PPPoE, including counters and downstream metering.
Change-Id: I940959f2338d7319654cf665f6cfe2de7200616b
diff --git a/pipelines/fabric/src/main/resources/p4c-out/fabric-bng/bmv2/default/bmv2.json b/pipelines/fabric/src/main/resources/p4c-out/fabric-bng/bmv2/default/bmv2.json
new file mode 100644
index 0000000..3fff434
--- /dev/null
+++ b/pipelines/fabric/src/main/resources/p4c-out/fabric-bng/bmv2/default/bmv2.json
@@ -0,0 +1,6580 @@
+{
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+ "type" : "bool",
+ "value" : true
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+ ],
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+ "line" : 214,
+ "column" : 37,
+ "source_fragment" : "= true; ..."
+ }
+ }
+ ]
+ },
+ {
+ "name" : "act",
+ "id" : 38,
+ "runtime_data" : [],
+ "primitives" : [
+ {
+ "op" : "assign",
+ "parameters" : [
+ {
+ "type" : "field",
+ "value" : ["standard_metadata", "egress_spec"]
+ },
+ {
+ "type" : "field",
+ "value" : ["packet_out", "egress_port"]
+ }
+ ],
+ "source_info" : {
+ "filename" : "include/control/packetio.p4",
+ "line" : 25,
+ "column" : 12,
+ "source_fragment" : "standard_metadata.egress_spec = hdr.packet_out.egress_port"
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+ {
+ "type" : "header",
+ "value" : "packet_out"
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+ "column" : 12,
+ "source_fragment" : "hdr.packet_out.setInvalid()"
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+ {
+ "op" : "assign",
+ "parameters" : [
+ {
+ "type" : "field",
+ "value" : ["scalars", "fabric_metadata_t._is_controller_packet_out12"]
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+ {
+ "type" : "expression",
+ "value" : {
+ "type" : "expression",
+ "value" : {
+ "op" : "b2d",
+ "left" : null,
+ "right" : {
+ "type" : "bool",
+ "value" : true
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+ "filename" : "include/control/packetio.p4",
+ "line" : 27,
+ "column" : 53,
+ "source_fragment" : "= true; ..."
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+ },
+ {
+ "op" : "exit",
+ "parameters" : [],
+ "source_info" : {
+ "filename" : "include/control/packetio.p4",
+ "line" : 29,
+ "column" : 12,
+ "source_fragment" : "exit"
+ }
+ }
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+ {
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+ "id" : 39,
+ "runtime_data" : [],
+ "primitives" : [
+ {
+ "op" : "assign",
+ "parameters" : [
+ {
+ "type" : "field",
+ "value" : ["scalars", "fabric_metadata_t._eth_type0"]
+ },
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+ "type" : "field",
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+ }
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+ "filename" : "include/control/filtering.p4",
+ "line" : 105,
+ "column" : 37,
+ "source_fragment" : "= hdr.vlan_tag.eth_type; ..."
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+ },
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+ "op" : "assign",
+ "parameters" : [
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+ "type" : "field",
+ "value" : ["scalars", "fabric_metadata_t._vlan_id2"]
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+ "value" : ["vlan_tag", "vlan_id"]
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+ "value" : ["scalars", "fabric_metadata_t._vlan_pri3"]
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+ "filename" : "include/control/filtering.p4",
+ "line" : 107,
+ "column" : 37,
+ "source_fragment" : "= hdr.vlan_tag.pri; ..."
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+ "op" : "assign",
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+ "value" : ["scalars", "fabric_metadata_t._vlan_cfi4"]
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+ "column" : 37,
+ "source_fragment" : "= hdr.vlan_tag.cfi; ..."
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+ "id" : 40,
+ "runtime_data" : [],
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+ "source_fragment" : "= DEFAULT_MPLS_TTL + 1; ..."
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+ "id" : 41,
+ "runtime_data" : [],
+ "primitives" : [
+ {
+ "op" : "assign",
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+ "type" : "field",
+ "value" : ["scalars", "fabric_metadata_t._bng_type17"]
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+ {
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+ "filename" : "include/control/../header.p4",
+ "line" : 156,
+ "column" : 37,
+ "source_fragment" : "2w0x1; ..."
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+ "value" : {
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+ "runtime_data" : [],
+ "primitives" : [
+ {
+ "op" : "assign",
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+ "type" : "expression",
+ "value" : {
+ "op" : "b2d",
+ "left" : null,
+ "right" : {
+ "type" : "bool",
+ "value" : true
+ }
+ }
+ }
+ }
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+ }
+ ]
+ },
+ {
+ "name" : "act_4",
+ "id" : 43,
+ "runtime_data" : [],
+ "primitives" : [
+ {
+ "op" : "assign",
+ "parameters" : [
+ {
+ "type" : "field",
+ "value" : ["scalars", "bng_ingress_upstream_tmp"]
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+ "type" : "expression",
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+ "value" : {
+ "op" : "b2d",
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+ "type" : "bool",
+ "value" : false
+ }
+ }
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+ "name" : "act_5",
+ "id" : 44,
+ "runtime_data" : [],
+ "primitives" : [
+ {
+ "op" : "assign",
+ "parameters" : [
+ {
+ "type" : "field",
+ "value" : ["scalars", "bng_ingress_upstream_hasReturned"]
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+ "source_info" : {
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+ "line" : 155,
+ "column" : 12,
+ "source_fragment" : "return"
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+ {
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+ "id" : 45,
+ "runtime_data" : [],
+ "primitives" : [
+ {
+ "op" : "assign",
+ "parameters" : [
+ {
+ "type" : "field",
+ "value" : ["scalars", "bng_ingress_downstream_tmp"]
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+ "value" : {
+ "op" : "b2d",
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+ "type" : "bool",
+ "value" : true
+ }
+ }
+ }
+ }
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+ }
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+ },
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+ "name" : "act_7",
+ "id" : 46,
+ "runtime_data" : [],
+ "primitives" : [
+ {
+ "op" : "assign",
+ "parameters" : [
+ {
+ "type" : "field",
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+ "column" : 38,
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+ "value" : "FabricIngress.port_counters_control.egress_port_counter"
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+ "value" : "FabricIngress.port_counters_control.ingress_port_counter"
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+ ],
+ "source_info" : {
+ "filename" : "include/control/port_counter.p4",
+ "line" : 34,
+ "column" : 12,
+ "source_fragment" : "ingress_port_counter.count((bit<32>)standard_metadata.ingress_port)"
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+ "runtime_data" : [],
+ "primitives" : []
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+ "primitives" : []
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+ }
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+ "filename" : "include/control/../define.p4",
+ "line" : 107,
+ "column" : 31,
+ "source_fragment" : "0x8100; ..."
+ }
+ },
+ {
+ "op" : "add_header",
+ "parameters" : [
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+ "value" : "inner_vlan_tag"
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+ "column" : 8,
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+ "column" : 8,
+ "source_fragment" : "hdr.inner_vlan_tag.vlan_id = c_tag; ..."
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+ "type" : "field",
+ "value" : ["inner_vlan_tag", "eth_type"]
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+ "source_info" : {
+ "filename" : "include/control/../define.p4",
+ "line" : 114,
+ "column" : 33,
+ "source_fragment" : "0x8864; ..."
+ }
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+ "value" : "pppoe"
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+ "filename" : "include/bng.p4",
+ "line" : 315,
+ "column" : 8,
+ "source_fragment" : "hdr.pppoe.setValid()"
+ }
+ },
+ {
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+ "value" : ["pppoe", "version"]
+ },
+ {
+ "type" : "hexstr",
+ "value" : "0x01"
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+ ],
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+ "filename" : "include/bng.p4",
+ "line" : 316,
+ "column" : 8,
+ "source_fragment" : "hdr.pppoe.version = 4w1"
+ }
+ },
+ {
+ "op" : "assign",
+ "parameters" : [
+ {
+ "type" : "field",
+ "value" : ["pppoe", "type_id"]
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+ {
+ "type" : "hexstr",
+ "value" : "0x01"
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+ "column" : 8,
+ "source_fragment" : "hdr.pppoe.type_id = 4w1"
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+ "value" : ["pppoe", "code"]
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+ {
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+ "value" : "0x00"
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+ "filename" : "include/bng.p4",
+ "line" : 318,
+ "column" : 8,
+ "source_fragment" : "hdr.pppoe.code = 8w0"
+ }
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+ "column" : 8,
+ "source_fragment" : "hdr.pppoe.session_id = pppoe_session_id; ..."
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+ "type" : "counter_array",
+ "value" : "FabricEgress.bng_egress.downstream.c_line_tx"
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+ {
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+ "line" : 320,
+ "column" : 8,
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+ "value" : {
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+ "type" : "expression",
+ "value" : {
+ "op" : "+",
+ "left" : {
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+ },
+ "right" : {
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+ "value" : "0x0002"
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+ },
+ "right" : {
+ "type" : "hexstr",
+ "value" : "0xffff"
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+ }
+ }
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+ "line" : 325,
+ "column" : 8,
+ "source_fragment" : "hdr.pppoe.length = hdr.ipv4.total_len + 16w2"
+ }
+ },
+ {
+ "op" : "assign",
+ "parameters" : [
+ {
+ "type" : "field",
+ "value" : ["pppoe", "protocol"]
+ },
+ {
+ "type" : "hexstr",
+ "value" : "0x0021"
+ }
+ ],
+ "source_info" : {
+ "filename" : "include/control/../define.p4",
+ "line" : 116,
+ "column" : 35,
+ "source_fragment" : "0x0021; ..."
+ }
+ }
+ ]
+ },
+ {
+ "name" : "FabricEgress.egress_next.pop_mpls_if_present",
+ "id" : 52,
+ "runtime_data" : [],
+ "primitives" : [
+ {
+ "op" : "remove_header",
+ "parameters" : [
+ {
+ "type" : "header",
+ "value" : "mpls"
+ }
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+ "source_info" : {
+ "filename" : "include/control/next.p4",
+ "line" : 252,
+ "column" : 8,
+ "source_fragment" : "hdr.mpls.setInvalid()"
+ }
+ },
+ {
+ "op" : "assign",
+ "parameters" : [
+ {
+ "type" : "field",
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+ },
+ {
+ "type" : "field",
+ "value" : ["scalars", "fabric_metadata_t._ip_eth_type1"]
+ }
+ ],
+ "source_info" : {
+ "filename" : "include/control/next.p4",
+ "line" : 254,
+ "column" : 33,
+ "source_fragment" : "= fabric_metadata.ip_eth_type; ..."
+ }
+ }
+ ]
+ },
+ {
+ "name" : "FabricEgress.egress_next.set_mpls",
+ "id" : 53,
+ "runtime_data" : [],
+ "primitives" : [
+ {
+ "op" : "add_header",
+ "parameters" : [
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+ "type" : "header",
+ "value" : "mpls"
+ }
+ ],
+ "source_info" : {
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+ "line" : 259,
+ "column" : 8,
+ "source_fragment" : "hdr.mpls.setValid()"
+ }
+ },
+ {
+ "op" : "assign",
+ "parameters" : [
+ {
+ "type" : "field",
+ "value" : ["mpls", "label"]
+ },
+ {
+ "type" : "field",
+ "value" : ["scalars", "fabric_metadata_t._mpls_label5"]
+ }
+ ],
+ "source_info" : {
+ "filename" : "include/control/next.p4",
+ "line" : 260,
+ "column" : 8,
+ "source_fragment" : "hdr.mpls.label = fabric_metadata.mpls_label; ..."
+ }
+ },
+ {
+ "op" : "assign",
+ "parameters" : [
+ {
+ "type" : "field",
+ "value" : ["mpls", "tc"]
+ },
+ {
+ "type" : "hexstr",
+ "value" : "0x00"
+ }
+ ],
+ "source_info" : {
+ "filename" : "include/control/next.p4",
+ "line" : 261,
+ "column" : 8,
+ "source_fragment" : "hdr.mpls.tc = 3w0"
+ }
+ },
+ {
+ "op" : "assign",
+ "parameters" : [
+ {
+ "type" : "field",
+ "value" : ["mpls", "bos"]
+ },
+ {
+ "type" : "hexstr",
+ "value" : "0x01"
+ }
+ ],
+ "source_info" : {
+ "filename" : "include/control/next.p4",
+ "line" : 262,
+ "column" : 8,
+ "source_fragment" : "hdr.mpls.bos = 1w1"
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+ },
+ {
+ "op" : "assign",
+ "parameters" : [
+ {
+ "type" : "field",
+ "value" : ["mpls", "ttl"]
+ },
+ {
+ "type" : "field",
+ "value" : ["scalars", "fabric_metadata_t._mpls_ttl6"]
+ }
+ ],
+ "source_info" : {
+ "filename" : "include/control/next.p4",
+ "line" : 263,
+ "column" : 8,
+ "source_fragment" : "hdr.mpls.ttl = fabric_metadata.mpls_ttl; // Decrement after push. ..."
+ }
+ },
+ {
+ "op" : "assign",
+ "parameters" : [
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+ "type" : "field",
+ "value" : ["scalars", "fabric_metadata_t._eth_type0"]
+ },
+ {
+ "type" : "hexstr",
+ "value" : "0x8847"
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+}
\ No newline at end of file