Tofino Namespace Reference

Classes
struct	ActionDataBus
struct	InstructionMemory
struct	IXBar
class	MauAsmOutput
struct	Memories
class	SetupAttachedTables

Functions
void	dump (const Memories *mem)
void	emit_ixbar_hash (const PhvInfo &phv, std::ostream &out, indent_t indent, safe_vector< Slice > &match_data, safe_vector< Slice > &ghost, const ::IXBar::Use *use_, int hash_group, int &ident_bits_prev_alloc)
void	emit_ixbar_hash_dist_ident (const PhvInfo &phv, std::ostream &out, indent_t indent, safe_vector< Slice > &match_data, const Tofino::IXBar::Use::HashDistHash &hdh, const safe_vector< const IR::Expression * > &)
void	emit_ixbar_meter_alu_hash (const PhvInfo &phv, std::ostream &out, indent_t indent, const safe_vector< Slice > &match_data, const Tofino::IXBar::Use::MeterAluHash &mah, const safe_vector< const IR::Expression * > &field_list_order, const LTBitMatrix &sym_keys)
void	emit_ixbar_proxy_hash (const PhvInfo &phv, std::ostream &out, indent_t indent, safe_vector< Slice > &match_data, const Tofino::IXBar::Use::ProxyHashKey &ph, const safe_vector< const IR::Expression * > &field_list_order, const LTBitMatrix &sym_keys)
std::ostream &	operator<< (std::ostream &out, const Memories::result_bus_info &rbi)
std::ostream &	operator<< (std::ostream &out, const Memories::search_bus_info &sbi)
std::ostream &	operator<< (std::ostream &out, const Memories::table_alloc &ta)
std::ostream &	operator<< (std::ostream &out, const safe_vector< Memories::table_alloc * > &v)

Detailed Description

Copyright (C) 2024 Intel Corporation

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

SPDX-License-Identifier: Apache-2.0

Function Documentation

emit_ixbar_hash_dist_ident()

void Tofino::emit_ixbar_hash_dist_ident	(	const PhvInfo &	phv,
		std::ostream &	out,
		indent_t	indent,
		safe_vector< Slice > &	match_data,
		const Tofino::IXBar::Use::HashDistHash &	hdh,
		const safe_vector< const IR::Expression * > &	)

Given a bitrange to allocate into the ixbar hash matrix, as well as a list of fields to be the identity, this coordinates the field slice to a portion of the bit range. This really only applies for identity matches.