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//
// Copyright 2020 Ettus Research, a National Instruments Brand
//
// SPDX-License-Identifier: LGPL-3.0-or-later
//
// Module: rfnoc_block_window
//
// Description:
//
// Windowing module for use with FFT block. This block can be loaded with up
// to MAX_WINDOW_SIZE coefficients. Each input packet is then multiplied by
// the preloaded coefficients before being output.
//
// The first sample of the first packet is multiplied by the first
// coefficient, then the second sample is multiplied by the second
// coefficient, and so on. After "window size" coefficients, processing
// continues with the first coefficient again, and the process repeats.
//
// See rfnoc_block_window_regs.vh for register descriptions.
//
// Parameters:
//
// THIS_PORTID : Control crossbar port to which this block is connected
// CHDR_W : AXIS-CHDR data bus width
// MTU : Maximum transmission unit (i.e., maximum packet size in
// CHDR words is 2**MTU).
// NUM_PORTS : Number of window instances to include.
// MAX_WINDOW_SIZE : Maximum window size to support, in number of samples.
// This is ideally a power of 2.
//
`default_nettype none
module rfnoc_block_window #(
parameter [9:0] THIS_PORTID = 10'd0,
parameter CHDR_W = 64,
parameter [5:0] MTU = 10,
parameter NUM_PORTS = 1,
parameter MAX_WINDOW_SIZE = 4096
) (
// RFNoC Framework Clocks and Resets
input wire rfnoc_chdr_clk,
input wire rfnoc_ctrl_clk,
input wire ce_clk,
// RFNoC Backend Interface
input wire [ 511:0] rfnoc_core_config,
output wire [ 511:0] rfnoc_core_status,
// AXIS-CHDR Input Ports (from framework)
input wire [NUM_PORTS*CHDR_W-1:0] s_rfnoc_chdr_tdata,
input wire [ NUM_PORTS-1:0] s_rfnoc_chdr_tlast,
input wire [ NUM_PORTS-1:0] s_rfnoc_chdr_tvalid,
output wire [ NUM_PORTS-1:0] s_rfnoc_chdr_tready,
// AXIS-CHDR Output Ports (to framework)
output wire [NUM_PORTS*CHDR_W-1:0] m_rfnoc_chdr_tdata,
output wire [ NUM_PORTS-1:0] m_rfnoc_chdr_tlast,
output wire [ NUM_PORTS-1:0] m_rfnoc_chdr_tvalid,
input wire [ NUM_PORTS-1:0] m_rfnoc_chdr_tready,
// AXIS-Ctrl Input Port (from framework)
input wire [ 31:0] s_rfnoc_ctrl_tdata,
input wire s_rfnoc_ctrl_tlast,
input wire s_rfnoc_ctrl_tvalid,
output wire s_rfnoc_ctrl_tready,
// AXIS-Ctrl Output Port (to framework)
output wire [ 31:0] m_rfnoc_ctrl_tdata,
output wire m_rfnoc_ctrl_tlast,
output wire m_rfnoc_ctrl_tvalid,
input wire m_rfnoc_ctrl_tready
);
`include "rfnoc_block_window_regs.vh"
//---------------------------------------------------------------------------
// Signal Declarations
//---------------------------------------------------------------------------
// CtrlPort Master
wire m_ctrlport_req_wr;
wire m_ctrlport_req_rd;
wire [19:0] m_ctrlport_req_addr;
wire [31:0] m_ctrlport_req_data;
wire m_ctrlport_resp_ack;
wire [31:0] m_ctrlport_resp_data;
// Payload Stream to User Logic: in
wire [NUM_PORTS*32*1-1:0] m_in_payload_tdata;
wire [NUM_PORTS-1:0] m_in_payload_tlast;
wire [NUM_PORTS-1:0] m_in_payload_tvalid;
wire [NUM_PORTS-1:0] m_in_payload_tready;
// Context Stream to User Logic: in
wire [NUM_PORTS*CHDR_W-1:0] m_in_context_tdata;
wire [NUM_PORTS*4-1:0] m_in_context_tuser;
wire [NUM_PORTS-1:0] m_in_context_tlast;
wire [NUM_PORTS-1:0] m_in_context_tvalid;
wire [NUM_PORTS-1:0] m_in_context_tready;
// Payload Stream to User Logic: out
wire [NUM_PORTS*32*1-1:0] s_out_payload_tdata;
wire [NUM_PORTS-1:0] s_out_payload_tlast;
wire [NUM_PORTS-1:0] s_out_payload_tvalid;
wire [NUM_PORTS-1:0] s_out_payload_tready;
// Context Stream to User Logic: out
wire [NUM_PORTS*CHDR_W-1:0] s_out_context_tdata;
wire [NUM_PORTS*4-1:0] s_out_context_tuser;
wire [NUM_PORTS-1:0] s_out_context_tlast;
wire [NUM_PORTS-1:0] s_out_context_tvalid;
wire [NUM_PORTS-1:0] s_out_context_tready;
//---------------------------------------------------------------------------
// NoC Shell
//---------------------------------------------------------------------------
wire ce_rst;
noc_shell_window #(
.CHDR_W (CHDR_W),
.THIS_PORTID (THIS_PORTID),
.MTU (MTU),
.NUM_PORTS (NUM_PORTS)
) noc_shell_window_i (
//---------------------
// Framework Interface
//---------------------
// Clock Inputs
.rfnoc_chdr_clk (rfnoc_chdr_clk),
.rfnoc_ctrl_clk (rfnoc_ctrl_clk),
.ce_clk (ce_clk),
// Reset Outputs
.rfnoc_chdr_rst (),
.rfnoc_ctrl_rst (),
.ce_rst (ce_rst),
// RFNoC Backend Interface
.rfnoc_core_config (rfnoc_core_config),
.rfnoc_core_status (rfnoc_core_status),
// CHDR Input Ports (from framework)
.s_rfnoc_chdr_tdata (s_rfnoc_chdr_tdata),
.s_rfnoc_chdr_tlast (s_rfnoc_chdr_tlast),
.s_rfnoc_chdr_tvalid (s_rfnoc_chdr_tvalid),
.s_rfnoc_chdr_tready (s_rfnoc_chdr_tready),
// CHDR Output Ports (to framework)
.m_rfnoc_chdr_tdata (m_rfnoc_chdr_tdata),
.m_rfnoc_chdr_tlast (m_rfnoc_chdr_tlast),
.m_rfnoc_chdr_tvalid (m_rfnoc_chdr_tvalid),
.m_rfnoc_chdr_tready (m_rfnoc_chdr_tready),
// AXIS-Ctrl Input Port (from framework)
.s_rfnoc_ctrl_tdata (s_rfnoc_ctrl_tdata),
.s_rfnoc_ctrl_tlast (s_rfnoc_ctrl_tlast),
.s_rfnoc_ctrl_tvalid (s_rfnoc_ctrl_tvalid),
.s_rfnoc_ctrl_tready (s_rfnoc_ctrl_tready),
// AXIS-Ctrl Output Port (to framework)
.m_rfnoc_ctrl_tdata (m_rfnoc_ctrl_tdata),
.m_rfnoc_ctrl_tlast (m_rfnoc_ctrl_tlast),
.m_rfnoc_ctrl_tvalid (m_rfnoc_ctrl_tvalid),
.m_rfnoc_ctrl_tready (m_rfnoc_ctrl_tready),
//---------------------
// Client Interface
//---------------------
// CtrlPort Clock and Reset
.ctrlport_clk (),
.ctrlport_rst (),
// CtrlPort Master
.m_ctrlport_req_wr (m_ctrlport_req_wr),
.m_ctrlport_req_rd (m_ctrlport_req_rd),
.m_ctrlport_req_addr (m_ctrlport_req_addr),
.m_ctrlport_req_data (m_ctrlport_req_data),
.m_ctrlport_resp_ack (m_ctrlport_resp_ack),
.m_ctrlport_resp_data (m_ctrlport_resp_data),
// AXI-Stream Payload Context Clock and Reset
.axis_data_clk (),
.axis_data_rst (),
// Payload Stream to User Logic: in
.m_in_payload_tdata (m_in_payload_tdata),
.m_in_payload_tkeep (),
.m_in_payload_tlast (m_in_payload_tlast),
.m_in_payload_tvalid (m_in_payload_tvalid),
.m_in_payload_tready (m_in_payload_tready),
// Context Stream to User Logic: in
.m_in_context_tdata (m_in_context_tdata),
.m_in_context_tuser (m_in_context_tuser),
.m_in_context_tlast (m_in_context_tlast),
.m_in_context_tvalid (m_in_context_tvalid),
.m_in_context_tready (m_in_context_tready),
// Payload Stream from User Logic: out
.s_out_payload_tdata (s_out_payload_tdata),
.s_out_payload_tkeep ({NUM_PORTS{1'b1}}),
.s_out_payload_tlast (s_out_payload_tlast),
.s_out_payload_tvalid (s_out_payload_tvalid),
.s_out_payload_tready (s_out_payload_tready),
// Context Stream from User Logic: out
.s_out_context_tdata (s_out_context_tdata),
.s_out_context_tuser (s_out_context_tuser),
.s_out_context_tlast (s_out_context_tlast),
.s_out_context_tvalid (s_out_context_tvalid),
.s_out_context_tready (s_out_context_tready)
);
// Input packets have the same properties as output packets, so pass through
// the header information unchanged.
assign s_out_context_tdata = m_in_context_tdata;
assign s_out_context_tuser = m_in_context_tuser;
assign s_out_context_tlast = m_in_context_tlast;
assign s_out_context_tvalid = m_in_context_tvalid;
assign m_in_context_tready = s_out_context_tready;
//---------------------------------------------------------------------------
// CtrlPort Splitter
//---------------------------------------------------------------------------
// Create a CtrlPort bus for each port instance
wire [ 1*NUM_PORTS-1:0] ctrlport_req_wr;
wire [ 1*NUM_PORTS-1:0] ctrlport_req_rd;
wire [20*NUM_PORTS-1:0] ctrlport_req_addr;
wire [32*NUM_PORTS-1:0] ctrlport_req_data;
wire [ 1*NUM_PORTS-1:0] ctrlport_resp_ack;
wire [32*NUM_PORTS-1:0] ctrlport_resp_data;
ctrlport_decoder #(
.NUM_SLAVES (NUM_PORTS),
.BASE_ADDR (0),
.SLAVE_ADDR_W (WINDOW_ADDR_W)
) ctrlport_decoder_i (
.ctrlport_clk (ce_clk),
.ctrlport_rst (ce_rst),
.s_ctrlport_req_wr (m_ctrlport_req_wr),
.s_ctrlport_req_rd (m_ctrlport_req_rd),
.s_ctrlport_req_addr (m_ctrlport_req_addr),
.s_ctrlport_req_data (m_ctrlport_req_data),
.s_ctrlport_req_byte_en (4'hF),
.s_ctrlport_req_has_time (1'b0),
.s_ctrlport_req_time (64'b0),
.s_ctrlport_resp_ack (m_ctrlport_resp_ack),
.s_ctrlport_resp_status (),
.s_ctrlport_resp_data (m_ctrlport_resp_data),
.m_ctrlport_req_wr (ctrlport_req_wr),
.m_ctrlport_req_rd (ctrlport_req_rd),
.m_ctrlport_req_addr (ctrlport_req_addr),
.m_ctrlport_req_data (ctrlport_req_data),
.m_ctrlport_req_byte_en (),
.m_ctrlport_req_has_time (),
.m_ctrlport_req_time (),
.m_ctrlport_resp_ack (ctrlport_resp_ack),
.m_ctrlport_resp_status ({NUM_PORTS{2'b0}}),
.m_ctrlport_resp_data (ctrlport_resp_data)
);
//---------------------------------------------------------------------------
// Port Instances
//---------------------------------------------------------------------------
genvar port;
generate
for (port = 0; port < NUM_PORTS; port = port+1) begin : gen_ports
rfnoc_window_core #(
.MAX_WINDOW_SIZE (MAX_WINDOW_SIZE),
.COEFF_WIDTH (REG_LOAD_COEFF_LEN)
) rfnoc_window_core_i (
.clk (ce_clk),
.rst (ce_rst),
.s_ctrlport_req_wr (ctrlport_req_wr [port* 1 +: 1]),
.s_ctrlport_req_rd (ctrlport_req_rd [port* 1 +: 1]),
.s_ctrlport_req_addr (ctrlport_req_addr [port*20 +: 20]),
.s_ctrlport_req_data (ctrlport_req_data [port*32 +: 32]),
.s_ctrlport_resp_ack (ctrlport_resp_ack [port* 1 +: 1]),
.s_ctrlport_resp_data (ctrlport_resp_data [port*32 +: 32]),
.s_tdata (m_in_payload_tdata [port*32 +: 32]),
.s_tlast (m_in_payload_tlast [port* 1 +: 1]),
.s_tvalid (m_in_payload_tvalid [port* 1 +: 1]),
.s_tready (m_in_payload_tready [port* 1 +: 1]),
.m_tdata (s_out_payload_tdata [port*32 +: 32]),
.m_tlast (s_out_payload_tlast [port* 1 +: 1]),
.m_tvalid (s_out_payload_tvalid [port* 1 +: 1]),
.m_tready (s_out_payload_tready [port* 1 +: 1])
);
end
endgenerate
endmodule
`default_nettype wire
|
