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.

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

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


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


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


 class EtherLink(SimObject):
     type = "EtherLink"
     cxx_header = "dev/net/etherlink.hh"
     cxx_class = "gem5::EtherLink"

     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"
     cxx_class = "gem5::DistEtherLink"

     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"
     cxx_class = "gem5::EtherBus"

     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"
     cxx_class = "gem5::EtherSwitch"

     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(
         "1MiB", "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"
     cxx_class = "gem5::EtherTapBase"

     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["HAVE_TUNTAP"]:

     class EtherTap(EtherTapBase):
         type = "EtherTap"
         cxx_header = "dev/net/ethertap.hh"
         cxx_class = "gem5::EtherTap"

         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"
     cxx_class = "gem5::EtherTapStub"

     port = Param.UInt16(3500, "Port helper should send packets to")


 class EtherDump(SimObject):
     type = "EtherDump"
     cxx_header = "dev/net/etherdump.hh"
     cxx_class = "gem5::EtherDump"

     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"
     cxx_class = "gem5::EtherDevice"

     interface = EtherInt("Ethernet Interface")


 class IGbE(EtherDevice):
     # Base class for two IGbE adapters listed above
     type = "IGbE"
     cxx_header = "dev/net/i8254xGBe.hh"
     cxx_class = "gem5::IGbE"

     hardware_address = Param.EthernetAddr(
         NextEthernetAddr, "Ethernet Hardware Address"
     )
     rx_fifo_size = Param.MemorySize("384KiB", "Size of the rx FIFO")
     tx_fifo_size = Param.MemorySize("384KiB", "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 = PciMemBar(size="128KiB")
     MaximumLatency = 0x00
     MinimumGrant = 0xFF
     InterruptLine = 0x1E
     InterruptPin = 0x01
     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"
     cxx_class = "gem5::EtherDevBase"

     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("512KiB", "max size of rx fifo")
     tx_fifo_size = Param.MemorySize("512KiB", "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"
     cxx_class = "gem5::NSGigE"

     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
     BARs = (PciIoBar(size="256B"), PciMemBar(size="4KiB"))
     MaximumLatency = 0x34
     MinimumGrant = 0xB0
     InterruptLine = 0x1E
     InterruptPin = 0x01


 class Sinic(EtherDevBase):
     type = "Sinic"
     cxx_class = "gem5::sinic::Device"
     cxx_header = "dev/net/sinic.hh"

     rx_max_copy = Param.MemorySize("1514B", "rx max copy")
     tx_max_copy = Param.MemorySize("16KiB", "tx max copy")
     rx_max_intr = Param.UInt32(10, "max rx packets per interrupt")
     rx_fifo_threshold = Param.MemorySize("384KiB", "rx fifo high threshold")
     rx_fifo_low_mark = Param.MemorySize("128KiB", "rx fifo low threshold")
     tx_fifo_high_mark = Param.MemorySize("384KiB", "tx fifo high threshold")
     tx_fifo_threshold = Param.MemorySize("128KiB", "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
     BARs = PciMemBar(size="64KiB")
     MaximumLatency = 0x34
     MinimumGrant = 0xB0
     InterruptLine = 0x1E
     InterruptPin = 0x01
	# 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.

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

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


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


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


	class EtherLink(SimObject):
	type = "EtherLink"
	cxx_header = "dev/net/etherlink.hh"
	cxx_class = "gem5::EtherLink"

	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"
	cxx_class = "gem5::DistEtherLink"

	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"
	cxx_class = "gem5::EtherBus"

	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"
	cxx_class = "gem5::EtherSwitch"

	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(
	"1MiB", "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"
	cxx_class = "gem5::EtherTapBase"

	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["HAVE_TUNTAP"]:

	class EtherTap(EtherTapBase):
	type = "EtherTap"
	cxx_header = "dev/net/ethertap.hh"
	cxx_class = "gem5::EtherTap"

	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"
	cxx_class = "gem5::EtherTapStub"

	port = Param.UInt16(3500, "Port helper should send packets to")


	class EtherDump(SimObject):
	type = "EtherDump"
	cxx_header = "dev/net/etherdump.hh"
	cxx_class = "gem5::EtherDump"

	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"
	cxx_class = "gem5::EtherDevice"

	interface = EtherInt("Ethernet Interface")


	class IGbE(EtherDevice):
	# Base class for two IGbE adapters listed above
	type = "IGbE"
	cxx_header = "dev/net/i8254xGBe.hh"
	cxx_class = "gem5::IGbE"

	hardware_address = Param.EthernetAddr(
	NextEthernetAddr, "Ethernet Hardware Address"
	)
	rx_fifo_size = Param.MemorySize("384KiB", "Size of the rx FIFO")
	tx_fifo_size = Param.MemorySize("384KiB", "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 = PciMemBar(size="128KiB")
	MaximumLatency = 0x00
	MinimumGrant = 0xFF
	InterruptLine = 0x1E
	InterruptPin = 0x01
	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"
	cxx_class = "gem5::EtherDevBase"

	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("512KiB", "max size of rx fifo")
	tx_fifo_size = Param.MemorySize("512KiB", "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"
	cxx_class = "gem5::NSGigE"

	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
	BARs = (PciIoBar(size="256B"), PciMemBar(size="4KiB"))
	MaximumLatency = 0x34
	MinimumGrant = 0xB0
	InterruptLine = 0x1E
	InterruptPin = 0x01


	class Sinic(EtherDevBase):
	type = "Sinic"
	cxx_class = "gem5::sinic::Device"
	cxx_header = "dev/net/sinic.hh"

	rx_max_copy = Param.MemorySize("1514B", "rx max copy")
	tx_max_copy = Param.MemorySize("16KiB", "tx max copy")
	rx_max_intr = Param.UInt32(10, "max rx packets per interrupt")
	rx_fifo_threshold = Param.MemorySize("384KiB", "rx fifo high threshold")
	rx_fifo_low_mark = Param.MemorySize("128KiB", "rx fifo low threshold")
	tx_fifo_high_mark = Param.MemorySize("384KiB", "tx fifo high threshold")
	tx_fifo_threshold = Param.MemorySize("128KiB", "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
	BARs = PciMemBar(size="64KiB")
	MaximumLatency = 0x34
	MinimumGrant = 0xB0
	InterruptLine = 0x1E
	InterruptPin = 0x01