Entity: EthMacRxCsum

Diagram

time TPD_G boolean JUMBO_G boolean VLAN_G sl ethClk sl ethRst sl ipCsumEn sl tcpCsumEn sl udpCsumEn AxiStreamMasterType sAxisMaster AxiStreamMasterType mAxisMaster

Description

Company : SLAC National Accelerator Laboratory

Description: RX Checksum Hardware Offloading Engine

https://docs.google.com/spreadsheets/d/1_1M1keasfq8RLmRYHkO0IlRhMq5YZTgJ7OGrWvkib8I/edit?usp=sharing

This file is part of 'SLAC Firmware Standard Library'. It is subject to the license terms in the LICENSE.txt file found in the top-level directory of this distribution and at: https://confluence.slac.stanford.edu/display/ppareg/LICENSE.html. No part of 'SLAC Firmware Standard Library', including this file, may be copied, modified, propagated, or distributed except according to

the terms contained in the LICENSE.txt file.

Generics

Generic name Type Value Description
TPD_G time 1 ns
JUMBO_G boolean true
VLAN_G boolean false

Ports

Port name Direction Type Description
ethClk in sl Clock and Reset
ethRst in sl
ipCsumEn in sl Configurations
tcpCsumEn in sl
udpCsumEn in sl
sAxisMaster in AxiStreamMasterType Inbound data from MAC
mAxisMaster out AxiStreamMasterType

Signals

Name Type Description
r RegType
rin RegType
dbg Slv16Array(1 downto 0)

Constants

Name Type Value Description
MAX_FRAME_SIZE_C natural ite(JUMBO_G,
9000,
1500)
REG_INIT_C RegType ( valid => (others => '0'),
fragDet => (others => '0'),
eofeDet => (others => '0'),
ipv4Det => (others => '0'),
udpDet => (others => '0'),
tcpDet => (others => '0'),
tcpFlag => '0',
pipeFlush => '0',
byteCnt => 0,
ipv4Hdr => (others => (others => '0')),
ipv4Len => (others => (others => '0')),
protLen => (others => (others => '0')),
protCsum => (others => (others => '0')),
calc => (others => ETH_MAC_CSUM_ACCUM_INIT_C),
tKeep => (others => '0'),
tData => (others => '0'),
mAxisMaster => AXI_STREAM_MASTER_INIT_C,
mAxisMasters => (others => AXI_STREAM_MASTER_INIT_C),
state => IDLE_S)

Types

Name Type Description
StateType ( IDLE_S,
IPV4_HDR0_S,
IPV4_HDR1_S,
MOVE_S,
BLOWOFF_S)
RegType

Processes