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Reinier van der Walle authoredReinier van der Walle authored
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rdma_demo_pkg.vhd 6.84 KiB
-------------------------------------------------------------------------------
--
-- Copyright 2023
-- ASTRON (Netherlands Institute for Radio Astronomy) <http://www.astron.nl/>
-- P.O.Box 2, 7990 AA Dwingeloo, The Netherlands
--
-- Licensed under the Apache License, Version 2.0 (the "License");
-- you may not use this file except in compliance with the License.
-- You may obtain a copy of the License at
--
-- http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
--
-------------------------------------------------------------------------------
--
-- Author: R. vd Walle
-- Purpose: This package contains rdma_demo specific constants and/or functions
-- Description:
--
library IEEE, common_lib;
use IEEE.std_logic_1164.all;
use common_lib.common_pkg.all;
use common_lib.common_mem_pkg.all;
use common_lib.common_field_pkg.all;
use common_lib.common_network_layers_pkg.all;
package rdma_demo_pkg is
constant c_rdma_demo_nof_octet_generate_100gbe : natural := 64;
constant c_rdma_demo_nof_octet_output_100gbe : natural := 64;
-- hdr_field_sel bit selects where the hdr_field value is set:
-- . 0 = data path controlled, value is set in data path, so field_default()
-- is not used.
-- . 1 = MM controlled, value is set via MM or by the field_default(), so any
-- data path setting in eth_tester.vhd is not used.
-- Remarks:
-- . For constant values it is convenient to use MM controlled, because then
-- the field_default() is used that can be set here in
-- c_rdma_demo_hdr_field_arr.
-- . For reserved values it is convenient to use MM controlled, because then
-- in future they could still be changed via MM without having to recompile
-- the FW.
-- . Typically only use data path controlled if the value has to be set
-- dynamically, so dependent on the state of the FW.
-- . If a data path controlled field is not set in the FW, then it defaults
-- to 0 by declaring hdr_fields_in_arr with all 0. Hence e.g. udp_checksum
-- = 0 can be achieve via data path and default hdr_fields_in_arr = 0 or
-- via MM controlled and field_default(0).
constant c_rdma_demo_dp_nof_hdr_fields : natural := 4;
constant c_rdma_demo_dp_hdr_field_sel : std_logic_vector(c_rdma_demo_dp_nof_hdr_fields - 1 downto 0) := "0100";
constant c_rdma_demo_dp_hdr_field_arr : t_common_field_arr(c_rdma_demo_dp_nof_hdr_fields - 1 downto 0) := (
( field_name_pad("dp_length" ), "RW", 16, field_default(0) ),
( field_name_pad("dp_reserved"), "RW", 15, field_default(0) ),
( field_name_pad("dp_sync" ), "RW", 1, field_default(0) ),
( field_name_pad("dp_bsn" ), "RW", 64, field_default(0) )
);
constant c_rdma_demo_dp_reg_hdr_dat_addr_w : natural := ceil_log2(field_nof_words(c_rdma_demo_dp_hdr_field_arr, c_word_w));
constant c_rdma_demo_dp_reg_hdr_dat_addr_span : natural := 2**c_rdma_demo_dp_reg_hdr_dat_addr_w;
constant c_rdma_demo_dp_app_hdr_len : natural := 12; -- octets
-- RoCEv2 header for RDMA write operation (excluding ETH, IP, UDP)
-- Base Transport Header (BTH) + RDMA Extended Transport Header (RETH) + Immediate Data
constant c_rdma_demo_roce_nof_hdr_fields : natural := 12 + 4 + 13 + 3 + 1;
constant c_rdma_demo_roce_hdr_field_sel : std_logic_vector(c_rdma_demo_roce_nof_hdr_fields - 1 downto 0) := "111011111001" & "0100" & "1111111111111" & "111" & "1";
constant c_rdma_demo_roce_hdr_field_arr : t_common_field_arr(c_rdma_demo_roce_nof_hdr_fields - 1 downto 0) := (
( field_name_pad("ip_version" ), "RW", 4, field_default(4) ),
( field_name_pad("ip_header_length" ), "RW", 4, field_default(5) ),
( field_name_pad("ip_services" ), "RW", 8, field_default(0) ),
( field_name_pad("ip_total_length" ), "RW", 16, field_default(0) ), -- depends on BG block size, so set by data path
( field_name_pad("ip_identification" ), "RW", 16, field_default(0) ),
( field_name_pad("ip_flags" ), "RW", 3, field_default(2) ),
( field_name_pad("ip_fragment_offset" ), "RW", 13, field_default(0) ),
( field_name_pad("ip_time_to_live" ), "RW", 8, field_default(127) ),
( field_name_pad("ip_protocol" ), "RW", 8, field_default(17) ),
( field_name_pad("ip_header_checksum" ), "RW", 16, field_default(0) ),
( field_name_pad("ip_src_addr" ), "RW", 32, field_default(0) ),
( field_name_pad("ip_dst_addr" ), "RW", 32, field_default(0) ), -- c_eth_tester_ip_dst_addr
( field_name_pad("udp_src_port" ), "RW", 16, field_default(0) ),
( field_name_pad("udp_dst_port" ), "RW", 16, field_default(0) ), -- c_eth_tester_udp_dst_port
( field_name_pad("udp_total_length" ), "RW", 16, field_default(0) ), -- depends on BG block size, so set by data path
( field_name_pad("udp_checksum" ), "RW", 16, field_default(0) ),
( field_name_pad("bth_opcode" ), "RW", 8, field_default(0) ),
( field_name_pad("bth_se" ), "RW", 1, field_default(0) ),
( field_name_pad("bth_m" ), "RW", 1, field_default(0) ),
( field_name_pad("bth_pad" ), "RW", 2, field_default(0) ),
( field_name_pad("bth_tver" ), "RW", 4, field_default(0) ),
( field_name_pad("bth_partition_key" ), "RW", 16, field_default(0) ),
( field_name_pad("bth_fres" ), "RW", 1, field_default(0) ),
( field_name_pad("bth_bres" ), "RW", 1, field_default(0) ),
( field_name_pad("bth_reserved_a" ), "RW", 6, field_default(0) ),
( field_name_pad("bth_dest_qp" ), "RW", 16, field_default(0) ),
( field_name_pad("bth_ack_req" ), "RW", 1, field_default(0) ),
( field_name_pad("bth_reserved_b" ), "RW", 7, field_default(0) ),
( field_name_pad("bth_psn" ), "RW", 32, field_default(0) ),
( field_name_pad("reth_virtual_address"), "RW", 64, field_default(0) ),
( field_name_pad("reth_r_key" ), "RW", 32, field_default(0) ),
( field_name_pad("reth_dma_length" ), "RW", 32, field_default(0) ),
( field_name_pad("immediate_data" ), "RW", 32, field_default(0) )
);
constant c_rdma_demo_roce_reg_hdr_dat_addr_w : natural := ceil_log2(field_nof_words(c_rdma_demo_roce_hdr_field_arr, c_word_w));
constant c_rdma_demo_roce_reg_hdr_dat_addr_span : natural := 2**c_rdma_demo_roce_reg_hdr_dat_addr_w;
constant c_rdma_demo_roce_hdr_len : natural := 32; -- octets
constant c_rdma_demo_roce_icrc_len : natural := 4; -- octets
end rdma_demo_pkg;
package body rdma_demo_pkg is
end rdma_demo_pkg;