Subversion Repositories an-fpga-implementation-of-low-latency-noc-based-mpsoc

`include "pronoc_def.v"

/**********************************************************************

**      File: combined_vc_sw_alloc.v

**

**      Copyright (C) 2014-2017  Alireza Monemi

**

**      This file is part of ProNoC

**

**      ProNoC ( stands for Prototype Network-on-chip)  is free software:

**      you can redistribute it and/or modify it under the terms of the GNU

**      Lesser General Public License as published by the Free Software Foundation,

**      either version 2 of the License, or (at your option) any later version.

**

**      ProNoC is distributed in the hope that it will be useful, but WITHOUT

**      ANY WARRANTY; without even the implied warranty of MERCHANTABILITY

**      or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General

**      Public License for more details.

**

**      You should have received a copy of the GNU Lesser General Public

**      License along with ProNoC. If not, see .

**

**

**      Description:

**      combined VC/SW allocator. VC allocation is done in parallel with swich allocator

**      for header flits which are successfully get sw grant

*************************************/

module combined_vc_sw_alloc

        import pronoc_pkg::*;

#(

    parameter P = 5 //port number

)

(

    ivc_info,

    dest_port_all,

    masked_ovc_request_all,

    ovc_allocated_all,

    granted_ovc_num_all,

    ivc_num_getting_ovc_grant,

    ivc_num_getting_sw_grant,

    spec_first_arbiter_granted_ivc_all,

    nonspec_first_arbiter_granted_ivc_all,

    granted_dest_port_all,

    nonspec_granted_dest_port_all,

    spec_granted_dest_port_all,

    any_ivc_sw_request_granted_all,

    any_ovc_granted_in_outport_all,

    spec_ovc_num_all,

    vc_weight_is_consumed_all,

    iport_weight_is_consumed_all,

    granted_dst_is_from_a_single_flit_pck,

    clk,

    reset

);

    localparam

        PV = V * P,

        PVV = PV * V,

        P_1 = (SELF_LOOP_EN == "NO")? P-1 : P,

        PP_1 = P_1 * P,

        PVP_1 = PV * P_1;

    input  ivc_info_t ivc_info [P-1 : 0][V-1 : 0];

    input  [PVP_1-1 : 0] dest_port_all;

    input  [PVV-1 :  0] masked_ovc_request_all;

    output [PV-1 : 0] ovc_allocated_all;

    output [PVV-1 : 0] granted_ovc_num_all;

    output [PV-1 : 0] ivc_num_getting_ovc_grant;

    output [PV-1 : 0] ivc_num_getting_sw_grant;

    output [PV-1 : 0] nonspec_first_arbiter_granted_ivc_all;

    output [PV-1 : 0] spec_first_arbiter_granted_ivc_all;

    output [P-1 : 0] any_ivc_sw_request_granted_all;

    output [P-1 :  0] any_ovc_granted_in_outport_all;

    output [PP_1-1 : 0] granted_dest_port_all;

    output [PP_1-1 : 0] nonspec_granted_dest_port_all;

    output [PP_1-1 : 0] spec_granted_dest_port_all;

    output [PVV-1 : 0] spec_ovc_num_all;

  //  input  [PVP_1-1 :  0] lk_destination_all;

    input  [PV-1 :  0] vc_weight_is_consumed_all;

    input  [P-1 :  0] iport_weight_is_consumed_all;

    output [P-1 : 0] granted_dst_is_from_a_single_flit_pck;

    input clk,reset;

    wire  [PV-1 : 0] ivc_request_all;

    wire  [PV-1 : 0] assigned_ovc_not_full_all;

    wire  [PV-1 : 0] ovc_is_assigned_all;

    wire  [PV-1 : 0] pck_is_single_flit_all;

    genvar i;

    generate

        for (i=0; i

                localparam  C_PORT  = i/V;

                assign ivc_request_all[i] = ivc_info[C_PORT][i%V].ivc_req;

                assign assigned_ovc_not_full_all[i] = ivc_info[C_PORT][i%V].assigned_ovc_not_full;

                assign ovc_is_assigned_all[i] = ivc_info[C_PORT][i%V].ovc_is_assigned;

                assign pck_is_single_flit_all[i] =ivc_info[C_PORT][i%V].single_flit_pck;

    end//for

    /* verilator lint_off WIDTH */

    if(COMBINATION_TYPE    ==    "BASELINE") begin : canonical_comb_gen

    /* verilator lint_on WIDTH */

        baseline_allocator #(

            .V(V),

            .P(P),

            .TREE_ARBITER_EN(1),

            .DEBUG_EN(DEBUG_EN),

            .SWA_ARBITER_TYPE (SWA_ARBITER_TYPE),

            .SELF_LOOP_EN(SELF_LOOP_EN)

        )

        the_base_line

        (

            .dest_port_all(dest_port_all),

            .masked_ovc_request_all(masked_ovc_request_all),

            .ovc_is_assigned_all(ovc_is_assigned_all),

            .ivc_request_all(ivc_request_all),

            .assigned_ovc_not_full_all(assigned_ovc_not_full_all),

            .ovc_allocated_all(ovc_allocated_all),

            .granted_ovc_num_all(granted_ovc_num_all),

            .ivc_num_getting_ovc_grant(ivc_num_getting_ovc_grant),

            .ivc_num_getting_sw_grant(ivc_num_getting_sw_grant),

            .spec_first_arbiter_granted_ivc_all(spec_first_arbiter_granted_ivc_all),

            .nonspec_first_arbiter_granted_ivc_all(nonspec_first_arbiter_granted_ivc_all),

            .granted_dest_port_all(granted_dest_port_all),

            .nonspec_granted_dest_port_all(nonspec_granted_dest_port_all),

            .spec_granted_dest_port_all(spec_granted_dest_port_all),

            .any_ivc_sw_request_granted_all(any_ivc_sw_request_granted_all),

            .spec_ovc_num_all(spec_ovc_num_all),

            .vc_weight_is_consumed_all(vc_weight_is_consumed_all),

            .iport_weight_is_consumed_all(iport_weight_is_consumed_all),

            .clk(clk),

            .reset(reset)

        );

    /* verilator lint_off WIDTH */

    end else if(COMBINATION_TYPE    ==    "COMB_SPEC1") begin : spec1

    /* verilator lint_on WIDTH */

        comb_spec1_allocator #(

            .V(V),

            .P(P),

            .DEBUG_EN(DEBUG_EN),

            .SWA_ARBITER_TYPE (SWA_ARBITER_TYPE),

            .MIN_PCK_SIZE(MIN_PCK_SIZE),

            .SELF_LOOP_EN(SELF_LOOP_EN)

        )

        the_comb_spec1

        (

            .dest_port_all(dest_port_all),

            .masked_ovc_request_all(masked_ovc_request_all),

            .ovc_is_assigned_all(ovc_is_assigned_all),

            .ivc_request_all(ivc_request_all),

            .assigned_ovc_not_full_all(assigned_ovc_not_full_all),

            .ovc_allocated_all(ovc_allocated_all),

            .granted_ovc_num_all(granted_ovc_num_all),

            .ivc_num_getting_ovc_grant(ivc_num_getting_ovc_grant),

            .ivc_num_getting_sw_grant(ivc_num_getting_sw_grant),

            .spec_first_arbiter_granted_ivc_all(spec_first_arbiter_granted_ivc_all),

            .nonspec_first_arbiter_granted_ivc_all(nonspec_first_arbiter_granted_ivc_all),

            .granted_dest_port_all(granted_dest_port_all),

            .nonspec_granted_dest_port_all(nonspec_granted_dest_port_all),

            .any_ivc_sw_request_granted_all(any_ivc_sw_request_granted_all),

            .vc_weight_is_consumed_all(vc_weight_is_consumed_all),

            .iport_weight_is_consumed_all(iport_weight_is_consumed_all),

            .pck_is_single_flit_all(pck_is_single_flit_all),

            .granted_dst_is_from_a_single_flit_pck(granted_dst_is_from_a_single_flit_pck),

            .clk(clk),

            .reset(reset)

        );

        assign spec_granted_dest_port_all = {PP_1{1'bx}};

        assign spec_ovc_num_all = {PVV{1'bx}};

    /* verilator lint_off WIDTH */

    end else if (COMBINATION_TYPE    == "COMB_SPEC2") begin :spec2

    /* verilator lint_on WIDTH */

            comb_spec2_allocator #(

                .V(V),

                .P(P),

                .DEBUG_EN(DEBUG_EN),

                .SWA_ARBITER_TYPE (SWA_ARBITER_TYPE),

                .MIN_PCK_SIZE(MIN_PCK_SIZE),

                .SELF_LOOP_EN(SELF_LOOP_EN)

            )

            the_comb_spec2

            (

                .dest_port_all(dest_port_all),

                .masked_ovc_request_all(masked_ovc_request_all),

                .ovc_is_assigned_all(ovc_is_assigned_all),

                .ivc_request_all(ivc_request_all),

                .assigned_ovc_not_full_all(assigned_ovc_not_full_all),

                .ovc_allocated_all(ovc_allocated_all),

                .granted_ovc_num_all(granted_ovc_num_all),

                .ivc_num_getting_ovc_grant(ivc_num_getting_ovc_grant),

                .ivc_num_getting_sw_grant(ivc_num_getting_sw_grant),

                .spec_first_arbiter_granted_ivc_all(spec_first_arbiter_granted_ivc_all),

                .nonspec_first_arbiter_granted_ivc_all(nonspec_first_arbiter_granted_ivc_all),

                .granted_dest_port_all(granted_dest_port_all),

                .nonspec_granted_dest_port_all(nonspec_granted_dest_port_all),

                .any_ivc_sw_request_granted_all(any_ivc_sw_request_granted_all),

                .vc_weight_is_consumed_all(vc_weight_is_consumed_all),

                .iport_weight_is_consumed_all(iport_weight_is_consumed_all),

                .pck_is_single_flit_all(pck_is_single_flit_all),

                .granted_dst_is_from_a_single_flit_pck(granted_dst_is_from_a_single_flit_pck),

                .clk(clk),

                .reset(reset)

            );

            assign spec_granted_dest_port_all = {PP_1{1'bx}};

            assign spec_ovc_num_all = {PVV{1'bx}};

    end else begin :   nonspec

        if(V>7)begin :cmb_v2

             comb_nonspec_v2_allocator #(

                .V(V),

                .P(P),

                .FIRST_ARBITER_EXT_P_EN(FIRST_ARBITER_EXT_P_EN),

                .SWA_ARBITER_TYPE (SWA_ARBITER_TYPE),

                .MIN_PCK_SIZE(MIN_PCK_SIZE),

                .SELF_LOOP_EN(SELF_LOOP_EN)

            )

            nonspec_comb

            (

                .dest_port_all(dest_port_all),

                .masked_ovc_request_all(masked_ovc_request_all),

                .ovc_is_assigned_all(ovc_is_assigned_all),

                .ivc_request_all(ivc_request_all),

                .assigned_ovc_not_full_all(assigned_ovc_not_full_all),

                .ovc_allocated_all(ovc_allocated_all),

                .granted_ovc_num_all(granted_ovc_num_all),

                .ivc_num_getting_ovc_grant(ivc_num_getting_ovc_grant),

                .ivc_num_getting_sw_grant(ivc_num_getting_sw_grant),

                .nonspec_first_arbiter_granted_ivc_all(nonspec_first_arbiter_granted_ivc_all),

                .granted_dest_port_all(granted_dest_port_all),

                .any_ivc_sw_request_granted_all(any_ivc_sw_request_granted_all),

                .any_ovc_granted_in_outport_all(any_ovc_granted_in_outport_all),

                .vc_weight_is_consumed_all(vc_weight_is_consumed_all),

                .iport_weight_is_consumed_all(iport_weight_is_consumed_all),

                .pck_is_single_flit_all(pck_is_single_flit_all),

                .granted_dst_is_from_a_single_flit_pck(granted_dst_is_from_a_single_flit_pck),

                .clk(clk),

                .reset(reset)

            );

        end else begin :cmb_v1

            comb_nonspec_allocator #(

               .P(P)

            )

            nonspec_comb

            (

                .ivc_info(ivc_info),

                .dest_port_all(dest_port_all),

                .masked_ovc_request_all(masked_ovc_request_all),

                .ovc_allocated_all(ovc_allocated_all),

                .granted_ovc_num_all(granted_ovc_num_all),

                .ivc_num_getting_ovc_grant(ivc_num_getting_ovc_grant),

                .ivc_num_getting_sw_grant(ivc_num_getting_sw_grant),

                .nonspec_first_arbiter_granted_ivc_all(nonspec_first_arbiter_granted_ivc_all),

                .granted_dest_port_all(granted_dest_port_all),

                .any_ivc_sw_request_granted_all(any_ivc_sw_request_granted_all),

                .any_ovc_granted_in_outport_all(any_ovc_granted_in_outport_all),

                .vc_weight_is_consumed_all(vc_weight_is_consumed_all),

                .iport_weight_is_consumed_all(iport_weight_is_consumed_all),

                .pck_is_single_flit_all(pck_is_single_flit_all),

                .granted_dst_is_from_a_single_flit_pck(granted_dst_is_from_a_single_flit_pck),

                .clk(clk),

                .reset(reset)

            );

        end

        assign nonspec_granted_dest_port_all      = granted_dest_port_all;

        assign spec_granted_dest_port_all         = {PP_1{1'bx}};

        assign spec_ovc_num_all                      = {PVV{1'bx}};

        assign spec_first_arbiter_granted_ivc_all =  nonspec_first_arbiter_granted_ivc_all ;

    end

endgenerate

endmodule