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Major update to sinic to support VSINIC better

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dev/sinic.cc:
    - Size the virtualRegs array based on the configured value
    - Add debugging stuff for uniquely identifying vnic usage
    - Only count totally unprocessed packets when notifying via RxDone
    - Add initial virtual address support
    - Fix some bugs in accessing packets out of order to make sure that
    busy packets are processed first
    - Add fifo watermark stuff
    - Make number of vnics, zero/delay copy and watermarks parameters
dev/sinic.hh:
    add rxUnique and txUnique to uniquely identify tx and rx VNICs
    Create a separate list of Busy VNICs since more than one might
    be busy and we want to service those first
    Add more watermark stuff and new parameters
dev/sinicreg.hh:
    Make the number of virtual nics a read-only parameter
    add bits for ZeroCopy/DelayCopy
    rename Virtual to Vaddr so it's not ambiguous
    Add a flag for TxData/RxData to indicate a virtual address
    Report rxfifo status in RxDone
python/m5/objects/Ethernet.py:
    add more options for the fifo thresholds
    add number of vnics as a parameter
    add copy type as a parameter
    add virtual addressing as a parameter

--HG--
extra : convert_revision : 850e2433b585d65469d4c5d85ad7ca820db10f4a
This commit is contained in:
Nathan Binkert
2006-04-26 17:52:33 -04:00
parent 225345e50e
commit 8e9d44477c
4 changed files with 234 additions and 49 deletions
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10
python/m5/objects/Ethernet.py
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@@ -105,8 +105,14 @@ class Sinic(EtherDevBase):
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('48kB', "rx fifo high threshold")
tx_fifo_threshold = Param.MemorySize('16kB', "tx fifo low threshold")
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 = Param.Bool(False, "Zero copy receive")
delay_copy = Param.Bool(False, "Delayed copy transmit")
virtual_addr = Param.Bool(False, "Virtual addressing")
class SinicInt(EtherInt):
type = 'SinicInt'