void
PHV::push_back_header(const std::string &header_name,
header_id_t header_index,
const HeaderType &header_type,
const std::set<int> &arith_offsets,
const bool metadata) {
assert(header_index < static_cast<int>(capacity));
assert(header_index == static_cast<int>(headers.size()));
// cannot call push_back here, as the Header constructor passes "this" to the
// Field constructor (i.e. Header cannot be moved or the pointer would be
// invalid); this is not a very robust design
headers.emplace_back(
header_name, header_index, header_type, arith_offsets, metadata);
headers.back().set_packet_id(&packet_id);
headers_map.emplace(header_name, get_header(header_index));
for (int i = 0; i < header_type.get_num_fields(); i++) {
const std::string name = header_name + "." + header_type.get_field_name(i);
// std::cout << header_index << " " << i << " " << name << std::endl;
fields_map.emplace(name, get_field(header_index, i));
}
if (header_type.is_VL_header()) {
headers.back().VL_expr = header_type.resolve_VL_expr(header_index);
if (headers.back().VL_expr != nullptr) {
for (const int offset : header_type.get_VL_input_offsets())
headers.back()[offset].set_arith(true);
}
}
}
ConditionalsTest()
: testHeaderType("test_t", 0) {
testHeaderType.push_back_field("f32", 32);
testHeaderType.push_back_field("f48", 48);
testHeaderType.push_back_field("f8", 8);
testHeaderType.push_back_field("f16", 16);
testHeaderType.push_back_field("f128", 128);
phv_factory.push_back_header("test1", testHeader1, testHeaderType);
phv_factory.push_back_header("test2", testHeader2, testHeaderType);
}
void
PHVFactory::push_back_header(const std::string &header_name,
const header_id_t header_index,
const HeaderType &header_type,
const bool metadata) {
HeaderDesc desc(header_name, header_index, header_type, metadata);
// cannot use operator[] because it requires default constructibility
header_descs.insert(std::make_pair(header_index, desc));
for (int i = 0; i < header_type.get_num_fields(); i++) {
field_names.insert(header_name + "." + header_type.get_field_name(i));
}
}
CalculationTest()
: testHeaderType("test_t", 0),
oneParseState("parse_state", 0),
parser("test_parser", 0),
phv_source(PHVSourceIface::make_phv_source()) {
testHeaderType.push_back_field("f16", 16);
testHeaderType.push_back_field("f48", 48);
testHeaderType.push_back_field("f32_1", 32);
testHeaderType.push_back_field("f32_2", 32);
testHeaderType.push_back_field("f5", 5);
testHeaderType.push_back_field("f19", 19);
phv_factory.push_back_header("test1", testHeader1, testHeaderType);
phv_factory.push_back_header("test2", testHeader2, testHeaderType);
}
TableIndirectWS()
: testHeaderType("test_t", 0), action_fn("actionA", 0) {
testHeaderType.push_back_field("f16", 16);
testHeaderType.push_back_field("f48", 48);
phv_factory.push_back_header("test1", testHeader1, testHeaderType);
phv_factory.push_back_header("test2", testHeader2, testHeaderType);
key_builder.push_back_field(testHeader1, 0, 16);
// with counters, without ageing
table = MatchTableIndirectWS::create("exact", "test_table", 0,
table_size, key_builder,
true, false);
table->set_next_node(0, nullptr);
BufBuilder builder;
builder.push_back_field(testHeader1, 1, 48); // h1.f48
builder.push_back_field(testHeader2, 0, 16); // h2.f16
builder.push_back_field(testHeader2, 1, 48); // h2.f48
std::unique_ptr<Calculation<hash_t> > calc(new Calculation<hash_t>(builder));
calc->set_compute_fn(hash::xxh64<hash_t>);
table->set_hash(std::move(calc));
}
TableSizeTwo()
: testHeaderType("test_t", 0), action_fn("actionA", 0) {
testHeaderType.push_back_field("f16", 16);
testHeaderType.push_back_field("f48", 48);
phv_factory.push_back_header("test1", testHeader1, testHeaderType);
phv_factory.push_back_header("test2", testHeader2, testHeaderType);
key_builder.push_back_field(testHeader1, 0, 16);
key_builder_w_valid.push_back_field(testHeader1, 0, 16);
key_builder_w_valid.push_back_valid_header(testHeader2);
std::unique_ptr<MUType> match_unit;
// true enables counters
match_unit = std::unique_ptr<MUType>(new MUType(2, key_builder));
table = std::unique_ptr<MatchTable>(
new MatchTable("test_table", 0, std::move(match_unit), true)
);
table->set_next_node(0, nullptr);
match_unit = std::unique_ptr<MUType>(new MUType(2, key_builder_w_valid));
table_w_valid = std::unique_ptr<MatchTable>(
new MatchTable("test_table", 0, std::move(match_unit))
);
table_w_valid->set_next_node(0, nullptr);
}
PHVTest()
: testHeaderType("test_t", 0) {
testHeaderType.push_back_field("f16", 16);
testHeaderType.push_back_field("f48", 48);
phv_factory.push_back_header("test1", testHeader1, testHeaderType);
phv_factory.push_back_header("test2", testHeader2, testHeaderType);
}
AgeingTest()
: testHeaderType("test_t", 0),
action_fn("actionA", 0),
ageing_writer(new MemoryAccessor(4096)),
phv_source(PHVSourceIface::make_phv_source()) {
testHeaderType.push_back_field("f16", 16);
testHeaderType.push_back_field("f48", 48);
phv_factory.push_back_header("test1", testHeader1, testHeaderType);
phv_factory.push_back_header("test2", testHeader2, testHeaderType);
key_builder.push_back_field(testHeader1, 0, 16, MatchKeyParam::Type::EXACT);
typedef MatchTableAbstract::ActionEntry ActionEntry;
typedef MatchUnitExact<ActionEntry> MUExact;
LookupStructureFactory factory;
std::unique_ptr<MUExact> match_unit(new MUExact(1, key_builder, &factory));
// counters disabled, ageing enabled
table = std::unique_ptr<MatchTable>(
new MatchTable("test_table", 0, std::move(match_unit), false, true)
);
table->set_next_node(0, nullptr);
}
LearningTest()
: testHeaderType("test_t", 0),
learn_writer(new MemoryAccessor(4096)) {
testHeaderType.push_back_field("f16", 16);
testHeaderType.push_back_field("f48", 48);
phv_factory.push_back_header("test1", testHeader1, testHeaderType);
phv_factory.push_back_header("test2", testHeader2, testHeaderType);
}
Header::Header(const std::string &name, p4object_id_t id,
const HeaderType &header_type,
const std::set<int> &arith_offsets,
const bool metadata)
: NamedP4Object(name, id), header_type(header_type), metadata(metadata) {
// header_type_id = header_type.get_type_id();
for (int i = 0; i < header_type.get_num_fields(); i++) {
// use emplace_back instead?
bool arith_flag = true;
if (arith_offsets.find(i) == arith_offsets.end()) {
arith_flag = false;
}
fields.push_back(Field(header_type.get_bit_width(i), arith_flag));
nbytes_phv += fields.back().get_nbytes();
nbytes_packet += fields.back().get_nbits();
}
assert(nbytes_packet % 8 == 0);
nbytes_packet /= 8;
}
ActionsTest()
: testHeaderType("test_t", 0),
testActionFn("test_action", 0),
testActionFnEntry(&testActionFn),
phv_source(PHVSourceIface::make_phv_source()) {
testHeaderType.push_back_field("f32", 32);
testHeaderType.push_back_field("f48", 48);
testHeaderType.push_back_field("f8", 8);
testHeaderType.push_back_field("f16", 16);
testHeaderType.push_back_field("f128", 128);
phv_factory.push_back_header("test1", testHeader1, testHeaderType);
phv_factory.push_back_header("test2", testHeader2, testHeaderType);
phv_factory.push_back_header("testS0", testHeaderS0, testHeaderType);
phv_factory.push_back_header("testS1", testHeaderS1, testHeaderType);
phv_factory.push_back_header_stack("test_stack", testHeaderStack,
testHeaderType,
{testHeaderS0, testHeaderS1});
}
HeaderStackTest()
: testHeaderType("test_t", 0) {
testHeaderType.push_back_field("f16", 16);
testHeaderType.push_back_field("f48", 48);
phv_factory.push_back_header("test_0", testHeader_0, testHeaderType);
phv_factory.push_back_header("test_1", testHeader_1, testHeaderType);
phv_factory.push_back_header("test_2", testHeader_2, testHeaderType);
const std::vector<header_id_t> headers =
{testHeader_0, testHeader_1, testHeader_2};
phv_factory.push_back_header_stack("test_stack", testHeaderStack,
testHeaderType, headers);
}
TableIndirect()
: testHeaderType("test_t", 0), action_fn("actionA", 0) {
testHeaderType.push_back_field("f16", 16);
testHeaderType.push_back_field("f48", 48);
phv_factory.push_back_header("test1", testHeader1, testHeaderType);
phv_factory.push_back_header("test2", testHeader2, testHeaderType);
key_builder.push_back_field(testHeader1, 0, 16);
// with counters, without ageing
table = MatchTableIndirect::create("exact", "test_table", 0,
table_size, key_builder,
true, false);
table->set_next_node(0, nullptr);
}
