src/dev/net/Ethernet.py - public/gem5 - Git at Google

 # Copyright (c) 2015 ARM Limited
 # All rights reserved.
 #
 # The license below extends only to copyright in the software and shall
 # not be construed as granting a license to any other intellectual
 # property including but not limited to intellectual property relating
 # to a hardware implementation of the functionality of the software
 # licensed hereunder.  You may use the software subject to the license
 # terms below provided that you ensure that this notice is replicated
 # unmodified and in its entirety in all distributions of the software,
 # modified or unmodified, in source code or in binary form.
 #
 # Copyright (c) 2005-2007 The Regents of The University of Michigan
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met: redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer;
 # redistributions in binary form must reproduce the above copyright
 # notice, this list of conditions and the following disclaimer in the
 # documentation and/or other materials provided with the distribution;
 # neither the name of the copyright holders nor the names of its
 # contributors may be used to endorse or promote products derived from
 # this software without specific prior written permission.
 #
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 # Authors: Nathan Binkert

 from m5.defines import buildEnv
 from m5.SimObject import SimObject
 from m5.params import *
 from m5.proxy import *
 from m5.objects.PciDevice import PciDevice

 ETHERNET_ROLE = 'ETHERNET'
 Port.compat(ETHERNET_ROLE, ETHERNET_ROLE)

 class EtherInt(Port):
     def __init__(self, desc):
         super(EtherInt, self).__init__(ETHERNET_ROLE, desc)

 class VectorEtherInt(VectorPort):
     def __init__(self, desc):
         super(VectorEtherInt, self).__init__(ETHERNET_ROLE, desc)

 class EtherLink(SimObject):
     type = 'EtherLink'
     cxx_header = "dev/net/etherlink.hh"
     int0 = EtherInt("interface 0")
     int1 = EtherInt("interface 1")
     delay = Param.Latency('0us', "packet transmit delay")
     delay_var = Param.Latency('0ns', "packet transmit delay variability")
     speed = Param.NetworkBandwidth('1Gbps', "link speed")
     dump = Param.EtherDump(NULL, "dump object")

 class DistEtherLink(SimObject):
     type = 'DistEtherLink'
     cxx_header = "dev/net/dist_etherlink.hh"
     int0 = EtherInt("interface 0")
     delay = Param.Latency('0us', "packet transmit delay")
     delay_var = Param.Latency('0ns', "packet transmit delay variability")
     speed = Param.NetworkBandwidth('1Gbps', "link speed")
     dump = Param.EtherDump(NULL, "dump object")
     dist_rank = Param.UInt32('0', "Rank of this gem5 process (dist run)")
     dist_size = Param.UInt32('1', "Number of gem5 processes (dist run)")
     sync_start = Param.Latency('5200000000000t', "first dist sync barrier")
     sync_repeat = Param.Latency('10us', "dist sync barrier repeat")
     server_name = Param.String('localhost', "Message server name")
     server_port = Param.UInt32('2200', "Message server port")
     is_switch = Param.Bool(False, "true if this a link in etherswitch")
     dist_sync_on_pseudo_op = Param.Bool(False, "Start sync with pseudo_op")
     num_nodes = Param.UInt32('2', "Number of simulate nodes")

 class EtherBus(SimObject):
     type = 'EtherBus'
     cxx_header = "dev/net/etherbus.hh"
     loopback = Param.Bool(True, "send packet back to the sending interface")
     dump = Param.EtherDump(NULL, "dump object")
     speed = Param.NetworkBandwidth('100Mbps', "bus speed in bits per second")

 class EtherSwitch(SimObject):
     type = 'EtherSwitch'
     cxx_header = "dev/net/etherswitch.hh"
     dump = Param.EtherDump(NULL, "dump object")
     fabric_speed = Param.NetworkBandwidth('10Gbps', "switch fabric speed in bits "
                                           "per second")
     interface = VectorEtherInt("Ethernet Interface")
     output_buffer_size = Param.MemorySize('1MB', "size of output port buffers")
     delay = Param.Latency('0us', "packet transmit delay")
     delay_var = Param.Latency('0ns', "packet transmit delay variability")
     time_to_live = Param.Latency('10ms', "time to live of MAC address maping")

 class EtherTapBase(SimObject):
     type = 'EtherTapBase'
     abstract = True
     cxx_header = "dev/net/ethertap.hh"
     bufsz = Param.Int(10000, "tap buffer size")
     dump = Param.EtherDump(NULL, "dump object")
     tap = EtherInt("Ethernet interface to connect to gem5's network")

 if buildEnv['USE_TUNTAP']:
     class EtherTap(EtherTapBase):
         type = 'EtherTap'
         cxx_header = "dev/net/ethertap.hh"
         tun_clone_device = Param.String('/dev/net/tun',
                                         "Path to the tun clone device node")
         tap_device_name = Param.String('gem5-tap', "Tap device name")

 class EtherTapStub(EtherTapBase):
     type = 'EtherTapStub'
     cxx_header = "dev/net/ethertap.hh"
     port = Param.UInt16(3500, "Port helper should send packets to")

 class EtherDump(SimObject):
     type = 'EtherDump'
     cxx_header = "dev/net/etherdump.hh"
     file = Param.String("dump file")
     maxlen = Param.Int(96, "max portion of packet data to dump")

 class EtherDevice(PciDevice):
     type = 'EtherDevice'
     abstract = True
     cxx_header = "dev/net/etherdevice.hh"
     interface = EtherInt("Ethernet Interface")

 class IGbE(EtherDevice):
     # Base class for two IGbE adapters listed above
     type = 'IGbE'
     cxx_header = "dev/net/i8254xGBe.hh"
     hardware_address = Param.EthernetAddr(NextEthernetAddr,
         "Ethernet Hardware Address")
     rx_fifo_size = Param.MemorySize('384kB', "Size of the rx FIFO")
     tx_fifo_size = Param.MemorySize('384kB', "Size of the tx FIFO")
     rx_desc_cache_size = Param.Int(64,
         "Number of enteries in the rx descriptor cache")
     tx_desc_cache_size = Param.Int(64,
         "Number of enteries in the rx descriptor cache")
     VendorID = 0x8086
     SubsystemID = 0x1008
     SubsystemVendorID = 0x8086
     Status = 0x0000
     SubClassCode = 0x00
     ClassCode = 0x02
     ProgIF = 0x00
     BAR0 = 0x00000000
     BAR1 = 0x00000000
     BAR2 = 0x00000000
     BAR3 = 0x00000000
     BAR4 = 0x00000000
     BAR5 = 0x00000000
     MaximumLatency = 0x00
     MinimumGrant = 0xff
     InterruptLine = 0x1e
     InterruptPin = 0x01
     BAR0Size = '128kB'
     wb_delay = Param.Latency('10ns', "delay before desc writeback occurs")
     fetch_delay = Param.Latency('10ns', "delay before desc fetch occurs")
     fetch_comp_delay = Param.Latency('10ns', "delay after desc fetch occurs")
     wb_comp_delay = Param.Latency('10ns', "delay after desc wb occurs")
     tx_read_delay = Param.Latency('0ns', "delay after tx dma read")
     rx_write_delay = Param.Latency('0ns', "delay after rx dma read")
     phy_pid = Param.UInt16("Phy PID that corresponds to device ID")
     phy_epid = Param.UInt16("Phy EPID that corresponds to device ID")

 class IGbE_e1000(IGbE):
     # Older Intel 8254x based gigabit ethernet adapter
     # Uses Intel e1000 driver
     DeviceID = 0x1075
     phy_pid = 0x02A8
     phy_epid = 0x0380

 class IGbE_igb(IGbE):
     # Newer Intel 8257x based gigabit ethernet adapter
     # Uses Intel igb driver and in theory supports packet splitting and LRO
     DeviceID = 0x10C9
     phy_pid = 0x0141
     phy_epid = 0x0CC0

 class EtherDevBase(EtherDevice):
     type = 'EtherDevBase'
     abstract = True
     cxx_header = "dev/net/etherdevice.hh"

     hardware_address = Param.EthernetAddr(NextEthernetAddr,
         "Ethernet Hardware Address")

     dma_read_delay = Param.Latency('0us', "fixed delay for dma reads")
     dma_read_factor = Param.Latency('0us', "multiplier for dma reads")
     dma_write_delay = Param.Latency('0us', "fixed delay for dma writes")
     dma_write_factor = Param.Latency('0us', "multiplier for dma writes")

     rx_delay = Param.Latency('1us', "Receive Delay")
     tx_delay = Param.Latency('1us', "Transmit Delay")
     rx_fifo_size = Param.MemorySize('512kB', "max size of rx fifo")
     tx_fifo_size = Param.MemorySize('512kB', "max size of tx fifo")

     rx_filter = Param.Bool(True, "Enable Receive Filter")
     intr_delay = Param.Latency('10us', "Interrupt propagation delay")
     rx_thread = Param.Bool(False, "dedicated kernel thread for transmit")
     tx_thread = Param.Bool(False, "dedicated kernel threads for receive")
     rss = Param.Bool(False, "Receive Side Scaling")

 class NSGigE(EtherDevBase):
     type = 'NSGigE'
     cxx_header = "dev/net/ns_gige.hh"

     dma_data_free = Param.Bool(False, "DMA of Data is free")
     dma_desc_free = Param.Bool(False, "DMA of Descriptors is free")
     dma_no_allocate = Param.Bool(True, "Should we allocate cache on read")

     VendorID = 0x100B
     DeviceID = 0x0022
     Status = 0x0290
     SubClassCode = 0x00
     ClassCode = 0x02
     ProgIF = 0x00
     BAR0 = 0x00000001
     BAR1 = 0x00000000
     BAR2 = 0x00000000
     BAR3 = 0x00000000
     BAR4 = 0x00000000
     BAR5 = 0x00000000
     MaximumLatency = 0x34
     MinimumGrant = 0xb0
     InterruptLine = 0x1e
     InterruptPin = 0x01
     BAR0Size = '256B'
     BAR1Size = '4kB'


 class Sinic(EtherDevBase):
     type = 'Sinic'
     cxx_class = 'Sinic::Device'
     cxx_header = "dev/net/sinic.hh"

     rx_max_copy = Param.MemorySize('1514B', "rx max copy")
     tx_max_copy = Param.MemorySize('16kB', "tx max copy")
     rx_max_intr = Param.UInt32(10, "max rx packets per interrupt")
     rx_fifo_threshold = Param.MemorySize('384kB', "rx fifo high threshold")
     rx_fifo_low_mark = Param.MemorySize('128kB', "rx fifo low threshold")
     tx_fifo_high_mark = Param.MemorySize('384kB', "tx fifo high threshold")
     tx_fifo_threshold = Param.MemorySize('128kB', "tx fifo low threshold")
     virtual_count = Param.UInt32(1, "Virtualized SINIC")
     zero_copy_size = Param.UInt32(64, "Bytes to copy if below threshold")
     zero_copy_threshold = Param.UInt32(256,
         "Only zero copy above this threshold")
     zero_copy = Param.Bool(False, "Zero copy receive")
     delay_copy = Param.Bool(False, "Delayed copy transmit")
     virtual_addr = Param.Bool(False, "Virtual addressing")

     VendorID = 0x1291
     DeviceID = 0x1293
     Status = 0x0290
     SubClassCode = 0x00
     ClassCode = 0x02
     ProgIF = 0x00
     BAR0 = 0x00000000
     BAR1 = 0x00000000
     BAR2 = 0x00000000
     BAR3 = 0x00000000
     BAR4 = 0x00000000
     BAR5 = 0x00000000
     MaximumLatency = 0x34
     MinimumGrant = 0xb0
     InterruptLine = 0x1e
     InterruptPin = 0x01
     BAR0Size = '64kB'
	# Copyright (c) 2015 ARM Limited
	# All rights reserved.
	#
	# The license below extends only to copyright in the software and shall
	# not be construed as granting a license to any other intellectual
	# property including but not limited to intellectual property relating
	# to a hardware implementation of the functionality of the software
	# licensed hereunder. You may use the software subject to the license
	# terms below provided that you ensure that this notice is replicated
	# unmodified and in its entirety in all distributions of the software,
	# modified or unmodified, in source code or in binary form.
	#
	# Copyright (c) 2005-2007 The Regents of The University of Michigan
	# All rights reserved.
	#
	# Redistribution and use in source and binary forms, with or without
	# modification, are permitted provided that the following conditions are
	# met: redistributions of source code must retain the above copyright
	# notice, this list of conditions and the following disclaimer;
	# redistributions in binary form must reproduce the above copyright
	# notice, this list of conditions and the following disclaimer in the
	# documentation and/or other materials provided with the distribution;
	# neither the name of the copyright holders nor the names of its
	# contributors may be used to endorse or promote products derived from
	# this software without specific prior written permission.
	#
	# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	#
	# Authors: Nathan Binkert

	from m5.defines import buildEnv
	from m5.SimObject import SimObject
	from m5.params import *
	from m5.proxy import *
	from m5.objects.PciDevice import PciDevice

	ETHERNET_ROLE = 'ETHERNET'
	Port.compat(ETHERNET_ROLE, ETHERNET_ROLE)

	class EtherInt(Port):
	def __init__(self, desc):
	super(EtherInt, self).__init__(ETHERNET_ROLE, desc)

	class VectorEtherInt(VectorPort):
	def __init__(self, desc):
	super(VectorEtherInt, self).__init__(ETHERNET_ROLE, desc)

	class EtherLink(SimObject):
	type = 'EtherLink'
	cxx_header = "dev/net/etherlink.hh"
	int0 = EtherInt("interface 0")
	int1 = EtherInt("interface 1")
	delay = Param.Latency('0us', "packet transmit delay")
	delay_var = Param.Latency('0ns', "packet transmit delay variability")
	speed = Param.NetworkBandwidth('1Gbps', "link speed")
	dump = Param.EtherDump(NULL, "dump object")

	class DistEtherLink(SimObject):
	type = 'DistEtherLink'
	cxx_header = "dev/net/dist_etherlink.hh"
	int0 = EtherInt("interface 0")
	delay = Param.Latency('0us', "packet transmit delay")
	delay_var = Param.Latency('0ns', "packet transmit delay variability")
	speed = Param.NetworkBandwidth('1Gbps', "link speed")
	dump = Param.EtherDump(NULL, "dump object")
	dist_rank = Param.UInt32('0', "Rank of this gem5 process (dist run)")
	dist_size = Param.UInt32('1', "Number of gem5 processes (dist run)")
	sync_start = Param.Latency('5200000000000t', "first dist sync barrier")
	sync_repeat = Param.Latency('10us', "dist sync barrier repeat")
	server_name = Param.String('localhost', "Message server name")
	server_port = Param.UInt32('2200', "Message server port")
	is_switch = Param.Bool(False, "true if this a link in etherswitch")
	dist_sync_on_pseudo_op = Param.Bool(False, "Start sync with pseudo_op")
	num_nodes = Param.UInt32('2', "Number of simulate nodes")

	class EtherBus(SimObject):
	type = 'EtherBus'
	cxx_header = "dev/net/etherbus.hh"
	loopback = Param.Bool(True, "send packet back to the sending interface")
	dump = Param.EtherDump(NULL, "dump object")
	speed = Param.NetworkBandwidth('100Mbps', "bus speed in bits per second")

	class EtherSwitch(SimObject):
	type = 'EtherSwitch'
	cxx_header = "dev/net/etherswitch.hh"
	dump = Param.EtherDump(NULL, "dump object")
	fabric_speed = Param.NetworkBandwidth('10Gbps', "switch fabric speed in bits "
	"per second")
	interface = VectorEtherInt("Ethernet Interface")
	output_buffer_size = Param.MemorySize('1MB', "size of output port buffers")
	delay = Param.Latency('0us', "packet transmit delay")
	delay_var = Param.Latency('0ns', "packet transmit delay variability")
	time_to_live = Param.Latency('10ms', "time to live of MAC address maping")

	class EtherTapBase(SimObject):
	type = 'EtherTapBase'
	abstract = True
	cxx_header = "dev/net/ethertap.hh"
	bufsz = Param.Int(10000, "tap buffer size")
	dump = Param.EtherDump(NULL, "dump object")
	tap = EtherInt("Ethernet interface to connect to gem5's network")

	if buildEnv['USE_TUNTAP']:
	class EtherTap(EtherTapBase):
	type = 'EtherTap'
	cxx_header = "dev/net/ethertap.hh"
	tun_clone_device = Param.String('/dev/net/tun',
	"Path to the tun clone device node")
	tap_device_name = Param.String('gem5-tap', "Tap device name")

	class EtherTapStub(EtherTapBase):
	type = 'EtherTapStub'
	cxx_header = "dev/net/ethertap.hh"
	port = Param.UInt16(3500, "Port helper should send packets to")

	class EtherDump(SimObject):
	type = 'EtherDump'
	cxx_header = "dev/net/etherdump.hh"
	file = Param.String("dump file")
	maxlen = Param.Int(96, "max portion of packet data to dump")

	class EtherDevice(PciDevice):
	type = 'EtherDevice'
	abstract = True
	cxx_header = "dev/net/etherdevice.hh"
	interface = EtherInt("Ethernet Interface")

	class IGbE(EtherDevice):
	# Base class for two IGbE adapters listed above
	type = 'IGbE'
	cxx_header = "dev/net/i8254xGBe.hh"
	hardware_address = Param.EthernetAddr(NextEthernetAddr,
	"Ethernet Hardware Address")
	rx_fifo_size = Param.MemorySize('384kB', "Size of the rx FIFO")
	tx_fifo_size = Param.MemorySize('384kB', "Size of the tx FIFO")
	rx_desc_cache_size = Param.Int(64,
	"Number of enteries in the rx descriptor cache")
	tx_desc_cache_size = Param.Int(64,
	"Number of enteries in the rx descriptor cache")
	VendorID = 0x8086
	SubsystemID = 0x1008
	SubsystemVendorID = 0x8086
	Status = 0x0000
	SubClassCode = 0x00
	ClassCode = 0x02
	ProgIF = 0x00
	BAR0 = 0x00000000
	BAR1 = 0x00000000
	BAR2 = 0x00000000
	BAR3 = 0x00000000
	BAR4 = 0x00000000
	BAR5 = 0x00000000
	MaximumLatency = 0x00
	MinimumGrant = 0xff
	InterruptLine = 0x1e
	InterruptPin = 0x01
	BAR0Size = '128kB'
	wb_delay = Param.Latency('10ns', "delay before desc writeback occurs")
	fetch_delay = Param.Latency('10ns', "delay before desc fetch occurs")
	fetch_comp_delay = Param.Latency('10ns', "delay after desc fetch occurs")
	wb_comp_delay = Param.Latency('10ns', "delay after desc wb occurs")
	tx_read_delay = Param.Latency('0ns', "delay after tx dma read")
	rx_write_delay = Param.Latency('0ns', "delay after rx dma read")
	phy_pid = Param.UInt16("Phy PID that corresponds to device ID")
	phy_epid = Param.UInt16("Phy EPID that corresponds to device ID")

	class IGbE_e1000(IGbE):
	# Older Intel 8254x based gigabit ethernet adapter
	# Uses Intel e1000 driver
	DeviceID = 0x1075
	phy_pid = 0x02A8
	phy_epid = 0x0380

	class IGbE_igb(IGbE):
	# Newer Intel 8257x based gigabit ethernet adapter
	# Uses Intel igb driver and in theory supports packet splitting and LRO
	DeviceID = 0x10C9
	phy_pid = 0x0141
	phy_epid = 0x0CC0

	class EtherDevBase(EtherDevice):
	type = 'EtherDevBase'
	abstract = True
	cxx_header = "dev/net/etherdevice.hh"

	hardware_address = Param.EthernetAddr(NextEthernetAddr,
	"Ethernet Hardware Address")

	dma_read_delay = Param.Latency('0us', "fixed delay for dma reads")
	dma_read_factor = Param.Latency('0us', "multiplier for dma reads")
	dma_write_delay = Param.Latency('0us', "fixed delay for dma writes")
	dma_write_factor = Param.Latency('0us', "multiplier for dma writes")

	rx_delay = Param.Latency('1us', "Receive Delay")
	tx_delay = Param.Latency('1us', "Transmit Delay")
	rx_fifo_size = Param.MemorySize('512kB', "max size of rx fifo")
	tx_fifo_size = Param.MemorySize('512kB', "max size of tx fifo")

	rx_filter = Param.Bool(True, "Enable Receive Filter")
	intr_delay = Param.Latency('10us', "Interrupt propagation delay")
	rx_thread = Param.Bool(False, "dedicated kernel thread for transmit")
	tx_thread = Param.Bool(False, "dedicated kernel threads for receive")
	rss = Param.Bool(False, "Receive Side Scaling")

	class NSGigE(EtherDevBase):
	type = 'NSGigE'
	cxx_header = "dev/net/ns_gige.hh"

	dma_data_free = Param.Bool(False, "DMA of Data is free")
	dma_desc_free = Param.Bool(False, "DMA of Descriptors is free")
	dma_no_allocate = Param.Bool(True, "Should we allocate cache on read")

	VendorID = 0x100B
	DeviceID = 0x0022
	Status = 0x0290
	SubClassCode = 0x00
	ClassCode = 0x02
	ProgIF = 0x00
	BAR0 = 0x00000001
	BAR1 = 0x00000000
	BAR2 = 0x00000000
	BAR3 = 0x00000000
	BAR4 = 0x00000000
	BAR5 = 0x00000000
	MaximumLatency = 0x34
	MinimumGrant = 0xb0
	InterruptLine = 0x1e
	InterruptPin = 0x01
	BAR0Size = '256B'
	BAR1Size = '4kB'



	class Sinic(EtherDevBase):
	type = 'Sinic'
	cxx_class = 'Sinic::Device'
	cxx_header = "dev/net/sinic.hh"

	rx_max_copy = Param.MemorySize('1514B', "rx max copy")
	tx_max_copy = Param.MemorySize('16kB', "tx max copy")
	rx_max_intr = Param.UInt32(10, "max rx packets per interrupt")
	rx_fifo_threshold = Param.MemorySize('384kB', "rx fifo high threshold")
	rx_fifo_low_mark = Param.MemorySize('128kB', "rx fifo low threshold")
	tx_fifo_high_mark = Param.MemorySize('384kB', "tx fifo high threshold")
	tx_fifo_threshold = Param.MemorySize('128kB', "tx fifo low threshold")
	virtual_count = Param.UInt32(1, "Virtualized SINIC")
	zero_copy_size = Param.UInt32(64, "Bytes to copy if below threshold")
	zero_copy_threshold = Param.UInt32(256,
	"Only zero copy above this threshold")
	zero_copy = Param.Bool(False, "Zero copy receive")
	delay_copy = Param.Bool(False, "Delayed copy transmit")
	virtual_addr = Param.Bool(False, "Virtual addressing")

	VendorID = 0x1291
	DeviceID = 0x1293
	Status = 0x0290
	SubClassCode = 0x00
	ClassCode = 0x02
	ProgIF = 0x00
	BAR0 = 0x00000000
	BAR1 = 0x00000000
	BAR2 = 0x00000000
	BAR3 = 0x00000000
	BAR4 = 0x00000000
	BAR5 = 0x00000000
	MaximumLatency = 0x34
	MinimumGrant = 0xb0
	InterruptLine = 0x1e
	InterruptPin = 0x01
	BAR0Size = '64kB'