Realtime Manipulation of Communications Data with Intel IXP1200

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Real-time Manipulation of Communications Data
with Intel IXP1200

• Rodrigo Dominguez
• Salvador Bezos

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Quick Review
uEngine
uEngine
uEngine
uEngine
uEngine
uEngine
Old Design (As of Last Presentation)
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Motivation

• Application interests change
• Client may want different data
• System Conditions Change
• Host / network may reach capacity
• Centralizes filtering efforts
• Offloads client / server CPU work and allows
  for global filter settings for area network

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Possible Application
Predefined Filter Set
WAN
WAN
IXP
IXP
WAN
Static Configuration Tables Or Automatic
Recognition of Network Capabilities
IXP
. . .
WAN
IXP
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New System (In Brief)

• One thread (currently on isolated microengine)
  used for stream receives
• Remaining threads (currently on their own
  microengines) used for retransmission
• Filters statically loaded, controllable by
  parameters passed in IP header

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Creating a Test Stream

• ipos2stream.c
• Original code written by Jamie Booth
• Takes data with header info
• rows, timestamp, filter , parameter
• And packet info
• tag value, float x, float y, float z
• Modifications made to support our requirements
  for the data stream.

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The System
uEngine 1 (filter 1)
uEngine 4 (filter 4)
Port 1
Port 4
uEngine 0 (recv)
Port 0
Port 2
uEngine 2 (filter 2)
SDRAM Signaling
uEngine 3 (filter 3)
Port 3
uEngine 5 (filter 5)
Port 5
parameter
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Challenges/Decisions

• Not to use the StrongARM but instead do
  everything in the microengines.
• Resource constraints (SDRAM XFER REG)
• Modular code. Easy to add a new filter w/o
  modifying the receiver.

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Results

• Easy to program new filters using the microengine
  assembly code.
• Throughput of 100 Mbps when no packets dropped.
• Evaluate its computing power (under
  construction!).

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Questions?