Inheritance diagram for Clot:

[legend]

Public Member Functions
	Clot ()
	JSON deserialization constructor.

	Clot (cstring)

	Clot (gress_t gress)

	Clot (gress_t gress, unsigned tag)

unsigned	bit_offset (cstring parser_state, const PHV::FieldSlice *slice) const

unsigned	byte_offset (cstring parser_state, const PHV::FieldSlice *slice) const

const std::set< const PHV::Field * > &	checksum_fields () const
	Returns all fields that need to be replaced by a checksum when deparsed.

const ordered_map< const PHV::Field , const PHV::FieldSlice > &	fields_to_slices () const
	Returns all fields that have slices in this CLOT, mapped to their corresponding slice.

bool	has_slice (const PHV::FieldSlice *slice) const

bool	is_checksum_field (const PHV::Field *field) const

bool	is_first_field_in_clot (const PHV::Field *field) const

bool	is_phv_field (const PHV::Field *field) const

unsigned	length_in_bytes (cstring parser_state) const

bool	operator< (const Clot &clot) const
	Lexicographic ordering according to (gress, tag).

bool	operator== (const Clot &clot) const
	Equality based on gress and tag.

const std::map< cstring, std::vector< const PHV::FieldSlice * > > &	parser_state_to_slices () const

void	toJSON (JSONGenerator &json) const
	JSON serialization/deserialization.

cstring	toString () const

Public Member Functions inherited from LiftCompare< Clot >
	OPERATOR (equal, Equal)

	OPERATOR (not_equal, NotEqual)

bool	operator!= (const Clot &other) const

Public Member Functions inherited from LiftEqual< Clot >
	OPERATOR (equal, Equal)

	OPERATOR (not_equal, NotEqual)

bool	operator!= (const Clot &other) const

Public Member Functions inherited from LiftLess< Clot >
	OPERATOR (equal, Equal)

	OPERATOR (greater, Greater)

	OPERATOR (greater_equal, GreaterEqual)

	OPERATOR (less, Less)

	OPERATOR (less_equal, LessEqual)

	OPERATOR (not_equal, NotEqual)

bool	operator!= (const Clot &other) const

bool	operator<= (const Clot &other) const

bool	operator== (const Clot &other) const

bool	operator> (const Clot &other) const

bool	operator>= (const Clot &other) const

Static Public Member Functions
static Clot *	fromJSON (JSONLoader &json)

Public Attributes
std::map< const PHV::Field *, unsigned >	checksum_field_to_checksum_id

std::optional< unsigned >	csum_unit
	Indicates the checksum engine (if any) that will deposit in this CLOT.

gress_t	gress
	The gress to which this CLOT is assigned.

const IR::BFN::FieldLVal *	pov_bit = nullptr

std::optional< unsigned >	stack_depth = std::nullopt

std::optional< unsigned >	stack_inc = std::nullopt

unsigned	tag
	Identifies the hardware CLOT associated with this object.

Static Public Attributes
static std::map< gress_t, int >	tag_count

Friends
class	ClotInfo

class	GreedyClotAllocator

Member Function Documentation

◆ bit_offset()

unsigned Clot::bit_offset	(	cstring	parser_state,
		const PHV::FieldSlice *	slice ) const

Returns the bit offset of a field slice within this CLOT. An error occurs if the CLOT does not contain the exact field slice (i.e., if the given field slice is not completely covered by this CLOT, or if the CLOT contains a larger slice of the field).

◆ byte_offset()

unsigned Clot::byte_offset	(	cstring	parser_state,
		const PHV::FieldSlice *	slice ) const

Returns the byte offset of a field slice within this CLOT. An error occurs if the CLOT does not contain the exact field slice (i.e., if the given field slice is not completely covered by this CLOT, or if the CLOT contains a larger slice of the field).

◆ has_slice()

bool Clot::has_slice ( const PHV::FieldSlice * slice ) const

Returns: true when this CLOT has the exact slice.

◆ is_checksum_field()

bool Clot::is_checksum_field ( const PHV::Field * field ) const

Returns: true when field is a checksum field, and this CLOT has (a slice of) field.

◆ is_first_field_in_clot()

bool Clot::is_first_field_in_clot ( const PHV::Field * field ) const

Returns: true when the first slice in this CLOT is part of the given field field.

◆ is_phv_field()

bool Clot::is_phv_field ( const PHV::Field * field ) const

Returns: true when field is a PHV-allocated field, and this CLOT has (a slice of) field.

◆ operator<()

bool Clot::operator< ( const Clot & clot ) const

inlinevirtual

Lexicographic ordering according to (gress, tag).

Implements LiftLess< Clot >.

◆ operator==()

bool Clot::operator== ( const Clot & clot ) const

inlinevirtual

Equality based on gress and tag.

Implements LiftEqual< Clot >.

◆ parser_state_to_slices()

const std::map< cstring, std::vector< const PHV::FieldSlice * > > & Clot::parser_state_to_slices ( ) const

inline

Return map which contains the field slices in the CLOT depending on which parser state the CLOT began in.

Member Data Documentation

◆ tag_count

std::map< gress_t, int > Clot::tag_count

static

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

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Friends