AN 784: Partial Reconfiguration over PCI Express* Reference Design for Intel® Arria® 10 Devices

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ID 683856
Date 9/24/2018
Public
Document Table of Contents
Document Table of Contents x
1. Partial Reconfiguration over PCI Express* Reference Design for Intel® Arria® 10 Devices A. Reference Design Files
1. Partial Reconfiguration over PCI Express* Reference Design for Intel® Arria® 10 Devices x
1.1. Reference Design Overview 1.2. Getting Started 1.3. Reference Design Components 1.4. Compiling the Reference Design 1.5. Testing the Reference Design 1.6. Extending the Reference Design with Custom Persona 1.7. Document Revision History for AN 784: Partial Reconfiguration over PCI Express* Reference Design for Intel® Arria® 10 Devices
1.1. Reference Design Overview x
1.1.1. Clocking Scheme 1.1.2. Memory Address Mapping 1.1.3. Floorplanning
1.2. Getting Started x
1.2.1. Hardware and Software Requirements 1.2.2. Installing the Intel® Arria® 10 GX FPGA Development Kit 1.2.3. Installing the Linux Driver 1.2.4. Bringing Up the Reference Design
1.3. Reference Design Components x
1.3.1. BSP Top
1.3.1. BSP Top x
1.3.1.1. PCI Express* IP core 1.3.1.2. Intel® Arria® 10 DDR4 External Memory Interfaces IP Core 1.3.1.3. Design Top
1.3.1.3. Design Top x
1.3.1.3.1. Global Reset Logic 1.3.1.3.2. PR Region Wrapper 1.3.1.3.3. Intel® Arria® 10 Partial Reconfiguration Region Controller IP Core 1.3.1.3.4. Partial Reconfiguration Logic
1.5. Testing the Reference Design x
1.5.1. program_fpga_jtag 1.5.2. fpga-configure example_host_uio
example_host_uio x
1.5.3.1. Compiling the Example Applications 1.5.3.2. Programming the Design Using Example Applications
1. Partial Reconfiguration over PCI Express* Reference Design for Intel® Arria® 10 Devices
A. Reference Design Files

1.6. Extending the Reference Design with Custom Persona

This reference design provides an example template to create your own personas for PR over PCIe* . To extend the reference design with your custom persona:
  1. Navigate to the a10_pcie_devkit_cvp folder:
    cd a10_pcie_devkit_cvp
  2. Create a copy of the pr_logic_impl_template.qsf.template implementation revision file:
    cp pr_logic_impl_template.qsf.template <persona_impl_revision_name>.qsf
  3. Create a folder and copy your persona-specific RTL to this folder:
    mkdir <persona_name>
cp <custom_persona>.sv <persona_name>/
  4. Your custom top-level entity must match the ports for the custom_persona module, defined in the source/templates/pr_logic_template.sv file. The following example shows interfacing your design with the Avalon-MM interface, controlled over PCIe register file: 
    module custom_persona #(
parameter REG_FILE_IO_SIZE = 8
)(
//clock
input wire clk,

//active low reset, defined by hardware
input wire rst_n,
							
//Persona identification register, used by host in host program
output wire [31:0] persona_id,
							
//Host control register, used for control signals.
input wire [31:0] host_cntrl_register,
							
// 8 registers for host -> PR logic communication
input wire [31:0] host_pr [0:REG_FILE_IO_SIZE-1],
							
// 8 Registers for PR logic -> host communication
output wire [31:0] pr_host [0:REG_FILE_IO_SIZE-1]
);

    Utilize any of the parallel I/O port (PIO) register files for customization. The host_pr register sends the data from the persona to the host machine. The pr_host register sends the data from the host machine to the persona.

  5. In your top-level entity file, specify the persona ID as any 32-bit value:
    assign persona_id  = 32'h0000_aeed;
    Note: The example template uses only 8 bits, but you can specify any value, up to 32 bits.
  6. Set the unused output ports of the pr_host register to 0:
    generate
genvar i;
//Tying unused output ports to zero.
for (i = 2; i < REG_FILE_IO_SIZE; i = i + 1) begin
   assign pr_host [i] = 32'b0;
end
endgenerate
  7. Modify your persona_impl_revision_name.qsf to include the following assignments:
    set_global_assignment -name TOP_LEVEL_ENTITY a10_pcie_ref_design
set_global_assignment -name SYSTEMVERILOG_FILE \
      <persona_name>/<custom_persona>.sv
set_global_assignment -name QSYS_FILE <persona_specific_qsys_file>
set_global_assignment -name IP_FILE <persona_specific_ip_file>
set_instance_assignment -name QDB_FILE_PARTITION \
      a10_pcie_devkit_cvp_static.qdb -to | \
 
set_instance_assignment -name ENTITY_REBINDING \
      <custom_persona_top_level_entity> -to u_top|design_core|pr_region_wrapper|pr_persona_wrapper|u_pr_logic
  8. Update the partial reconfiguration flow script to define your new PR implementation.
  9. Update the a10_pcie_devkit_cvp.qpf project file to include your implementation revisions:
    PROJECT_REVISION = "<persona_impl_revision_name>"
  10. Compile the revision.

    For complete information on adding a custom persona to a PR design, refer to Adding a New Persona to the Design section in the Partially Reconfiguring a Design on Intel® Arria® 10 GX FPGA Development Board application note.

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