FPX Hardware Platform

Transcription

1 Development of a System-On-Chip Extensible Network Processor and debugging using Identify John W. Lockwood and Chris Zuver Applied Research Laboratory : Reconfigurable Network Group lockwood@arl.wustl.edu cz2@arl.wustl.edu Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking FPX Hardware Platform FPX Block Diagram FPX Photo SDRAM SRAM Route Filter Extensible Modules Flow Buffer Layered Protocol Wrappers SDRAM SRAM Memory RAD (FPGA) Program Cache Config Switch NID (FPGA) PROM Network Interface Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

2 FPX Hardware in WUGS-20 Switch Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking FPX Hardware in GVS-1000 Chassis Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

3 System-On-Chip Firewall Data input from Gigabit Ethernet or SONET Line Card Xilinx XCV2000E FPGA SDRAM 2 Controller SDRAM 1 Controller Interfaces to Off- Chip Memories SRAM 1 Free List Controller Manager Payload TCAM Flow Scanner Filter Extensible Buffer Module(s) Queue Packet Manager Scheduler Payload Match Bits Flow ID Layered Protocol Wrappers Data output To switch, Gigabit Ethernet, or SONET Line Card Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking Content Matching Module From Protocol Wrappers dataen_out_appl d_out_appl sof_out_appl eof_out_appl sod_out_appl tca_out_appl 32 regex_app (given) 32 dataen_appl_in d_appl_in sof_appl_in eof_appl_in sod_appl_in tca_appl_in To existing MP1 circuit clk reset_l enable_l 8 Matched ready_l To extended Bits of CAM wrapper_module.vhd Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

4 Packet matching w/ Content Addressable Memory Sample Packet: Source Address = (dotted.decimal) Destination Address = (dotted.decimal) Source Port = 4096 (decimal) Destination Port = 80 (decimal) Protocol = TCP (6) Payload = Consolidate your loans. CALL NOW Payload Lists = { General SPAM (0), Save Money SPAM (1) } Content Vector = (binary) = x 03 (hex) Content = 03 Src IP (hex) = 80FC0505 Dest IP (hex) = 8D8E0202 Src Port = 1000 Dest Port = 0050 Proto = 06 All values shown In hex Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking Sample Filter Source Address = / 16 Destination Address = / 16 Source Port = Don t Care Destination Port = 80 Protocol = TCP (6) Payload includes general SPAM (List 0) Conten t= 01 Src IP value = 80FC0000 Dest IP (hex) = 8D8E0000 Src Port = 0000 Dest Port = 50 Proto = 06 Value Conten t= 01 Src IP (hex) = FFFF0000 Dest IP (hex) = FFFF Src Port = 0000 Dest Port = FFFF 8 7 Proto = FF 0 Mask: 1=care 0=don t care Content= = 03 Src IP (hex) = 80FC0505 Dest IP (hex) = 8D8E0202 Src Port = 1000 Dest Port = 0050 Proto = 06 DROP the packet : It matches the filter IP Packet Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

5 Packet Classifier with FlowID 16 bits Flow ID [1] 112 bits CAM MASK [1] CAM VALUE [1] Flow ID [2] CAM MASK [2] Flow ID 16 bits Flow ID [3] CAM VALUE [2] --CAM Table -- CAM MASK [3] Resulting Flow Identifier... Flow ID [N]... CAM VALUE [3]... CAM MASK [N] CAM VALUE [N] Flow List Bits in IP Header Priority Encoder Mask Matchers Value Comparators Payload Match Bits Source Address Source Port Destination Address Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking Dest. Port Protocol Other Modules Implemented IPv6 Tunneling Module Tunnels IPv6 over IPv4 IPv4 CAM Filter 104 Bit header matching Statistics Module Event counter Traffic Generator Per-flow mixing Video Recoder Motion JPEG Embedded Processor KCPSM Fast IP Lookup (FIPL) Longest Prefix Match MAE-West at 10M pkts/second Packet Content Scanner Reg. Expression Search Data Queueing Per-flow queue in SDRAM Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

6 Use of Identify in the FPX Design Flow Identify is natural additional to the current design flow Verify Compile Adds two new steps Instrument Debug Debug Bit File Simulate Instrument Place n Route Synthesis Map Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking Two Part Solution Instrumenter Assigns signals to monitor/trigger Modifies existing VHDL Does not change original vhdl (create copies) Streamlines synthesis Debugger Communications to hardware via JTAG Uses trigger setup Includes waveform viewer Creates VHDL simulation model Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

7 Instrumenter : Step 1 Import Synplicity Project File File >> Import Synplicty Project. Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

8 Instrumenter : Step 2 Choose Signals to Monitor Right-click glasses symbol near signal to Sample and Trigger Sample Only Trigger Only Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking Instrumenter : Step 3 Set Options Click Edit IICE Options Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

9 Device Family JTAG port Builtin Using RJ-45 Port on FPX Syn Adds four JTAG I/O to toplevel (map rad_test) Name of Clock in VHDL Physical Resource Usage Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking BufferType Deviceram Block RAM Logic Flip-Flops Number of Sample (Trade-Off: Resources) Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

10 Triggering Options Self-Explanatory Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking Instrumenter : Step 4 INSTRUMENT DESIGN Click Save and Instrument Current Project Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

11 Synthesis Open Synplicty RUN >> Run TCL Script Locate Synplicity.tcl in syn_projectname folder Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking Synthesis VHDL Files Containing Instrumented Design Synplicity Synthesis Directory (.edf file here after running Synthesis) TCL Script for Importing to Synplicity Note: New Directory created by Instrumenter in Folder where imported Synplicity Project is located Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

12 Continue Design Flow Add.edf file to build directory Generate Bitfile like usual Load Bitfile to FPX using NCHARGE Make sure JTAG cable is unplugged Connect JTAG Cable to FPX and PC running IDENTIFY (Parrallel JTAG) Open IDENTIFY Debugger Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking File >> Open Project Locate the Instrumenter Project File Should be in same directory as Synplicity Project file IDENTIFY DEBUGGER Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

13 IDENTIFY DEBUGGER Trigger Locate and set Trigger Event Right Click Signal Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking IDENTIFY DEBUGGER Setup Project Options Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

14 IDENTIFY DEBUGGER Xilinx JTAG Cable Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking IDENTIFY DEBUGGER RUN STOP Relative Trigger Event (Trigger Beginning, Middle, End of Sample) Locate Trigger Signals Waveform Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

15 Waveform IDENTIFY DEBUGGER Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking RTL View IDENTIFY DEBUGGER Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking

16 References Debugging of an Internet Packet Scheduler Using the Identify Software, by Christopher K. Zuver and John W. Lockwood, The Syndicated, Volume 4, Issue 4, An Extensible, System-On-Programmable-Chip, Content- Aware Internet Firewall, by John W. Lockwood, Christopher Neely, Christopher Zuver, James Moscola, Sarang Dharmapurikar, and David Lim; Field Programmable Logic and Applications (FPL), Lisbon, Portugal, pp (Paper 14B), Sep 1-3, Automated Tools to Implement and Test Internet Systems in Reconfigurable Hardware, by John W. Lockwood, Chris Neely, Chris Zuver, Dave Lim; SIGCOMM Computer Communications Review (CCR), vol 33, no 3, July 2003, pp Extensible Networking Platform Lockwood / Zuver - Applied Research Laboratory -- Extensible Networking