3a0102536b
until the cache access occurs. The fundamental problem
is that a subsequent read that occurs functionally will
get a functionally incorrect result that can break
driver code.
dev/ns_gige.cc:
dev/ns_gige.hh:
dev/sinic.cc:
dev/sinic.hh:
get rid of pio_delay write and the associated code to move
the write to the cache access function
dev/sinicreg.hh:
no more write delays
python/m5/objects/Ethernet.py:
get rid of pio_delay write
--HG--
extra : convert_revision : 1dcb51b8f4514e717bc334a782dfdf06d29ae69d
112 lines
4.4 KiB
Python
112 lines
4.4 KiB
Python
from m5 import *
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from Device import DmaDevice
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from Pci import PciDevice
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class EtherInt(SimObject):
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type = 'EtherInt'
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abstract = True
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peer = Param.EtherInt(NULL, "peer interface")
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class EtherLink(SimObject):
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type = 'EtherLink'
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int1 = Param.EtherInt("interface 1")
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int2 = Param.EtherInt("interface 2")
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delay = Param.Latency('0us', "packet transmit delay")
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delay_var = Param.Latency('0ns', "packet transmit delay variability")
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speed = Param.NetworkBandwidth('1Gbps', "link speed")
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dump = Param.EtherDump(NULL, "dump object")
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class EtherBus(SimObject):
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type = 'EtherBus'
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loopback = Param.Bool(True, "send packet back to the sending interface")
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dump = Param.EtherDump(NULL, "dump object")
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speed = Param.NetworkBandwidth('100Mbps', "bus speed in bits per second")
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class EtherTap(EtherInt):
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type = 'EtherTap'
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bufsz = Param.Int(10000, "tap buffer size")
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dump = Param.EtherDump(NULL, "dump object")
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port = Param.UInt16(3500, "tap port")
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class EtherDump(SimObject):
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type = 'EtherDump'
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file = Param.String("dump file")
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maxlen = Param.Int(96, "max portion of packet data to dump")
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if build_env['ALPHA_TLASER']:
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class EtherDev(DmaDevice):
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type = 'EtherDev'
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hardware_address = Param.EthernetAddr(NextEthernetAddr,
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"Ethernet Hardware Address")
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dma_data_free = Param.Bool(False, "DMA of Data is free")
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dma_desc_free = Param.Bool(False, "DMA of Descriptors is free")
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dma_read_delay = Param.Latency('0us', "fixed delay for dma reads")
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dma_read_factor = Param.Latency('0us', "multiplier for dma reads")
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dma_write_delay = Param.Latency('0us', "fixed delay for dma writes")
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dma_write_factor = Param.Latency('0us', "multiplier for dma writes")
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dma_no_allocate = Param.Bool(True, "Should we allocate cache on read")
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rx_filter = Param.Bool(True, "Enable Receive Filter")
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rx_delay = Param.Latency('1us', "Receive Delay")
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tx_delay = Param.Latency('1us', "Transmit Delay")
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intr_delay = Param.Latency('0us', "Interrupt Delay")
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payload_bus = Param.Bus(NULL, "The IO Bus to attach to for payload")
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physmem = Param.PhysicalMemory(Parent.any, "Physical Memory")
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tlaser = Param.Turbolaser(Parent.any, "Turbolaser")
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class EtherDevInt(EtherInt):
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type = 'EtherDevInt'
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device = Param.EtherDev("Ethernet device of this interface")
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class EtherDevBase(PciDevice):
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hardware_address = Param.EthernetAddr(NextEthernetAddr,
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"Ethernet Hardware Address")
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clock = Param.Clock('0ns', "State machine processor frequency")
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physmem = Param.PhysicalMemory(Parent.any, "Physical Memory")
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hier = Param.HierParams(Parent.any, "Hierarchy global variables")
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payload_bus = Param.Bus(NULL, "The IO Bus to attach to for payload")
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dma_read_delay = Param.Latency('0us', "fixed delay for dma reads")
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dma_read_factor = Param.Latency('0us', "multiplier for dma reads")
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dma_write_delay = Param.Latency('0us', "fixed delay for dma writes")
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dma_write_factor = Param.Latency('0us', "multiplier for dma writes")
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dma_no_allocate = Param.Bool(True, "Should we allocate cache on read")
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rx_delay = Param.Latency('1us', "Receive Delay")
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tx_delay = Param.Latency('1us', "Transmit Delay")
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rx_fifo_size = Param.MemorySize('512kB', "max size of rx fifo")
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tx_fifo_size = Param.MemorySize('512kB', "max size of tx fifo")
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rx_filter = Param.Bool(True, "Enable Receive Filter")
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intr_delay = Param.Latency('10us', "Interrupt propagation delay")
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rx_thread = Param.Bool(False, "dedicated kernel thread for transmit")
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tx_thread = Param.Bool(False, "dedicated kernel threads for receive")
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class NSGigE(EtherDevBase):
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type = 'NSGigE'
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dma_data_free = Param.Bool(False, "DMA of Data is free")
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dma_desc_free = Param.Bool(False, "DMA of Descriptors is free")
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class NSGigEInt(EtherInt):
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type = 'NSGigEInt'
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device = Param.NSGigE("Ethernet device of this interface")
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class Sinic(EtherDevBase):
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type = 'Sinic'
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rx_max_copy = Param.MemorySize('1514B', "rx max copy")
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tx_max_copy = Param.MemorySize('16kB', "tx max copy")
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rx_max_intr = Param.UInt32(10, "max rx packets per interrupt")
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rx_fifo_threshold = Param.MemorySize('48kB', "rx fifo high threshold")
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tx_fifo_threshold = Param.MemorySize('16kB', "tx fifo low threshold")
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class SinicInt(EtherInt):
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type = 'SinicInt'
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device = Param.Sinic("Ethernet device of this interface")
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