From 2835b8ce1fef444c95b4085b567596deee6ab345 Mon Sep 17 00:00:00 2001
From: Eric Kooistra <kooistra@astron.nl>
Date: Fri, 28 Oct 2022 08:16:49 +0200
Subject: [PATCH] Multi tb passes.
---
libraries/io/eth/tb/vhdl/tb_tb_eth_tester.vhd | 119 +++++++++++++++---
1 file changed, 101 insertions(+), 18 deletions(-)
diff --git a/libraries/io/eth/tb/vhdl/tb_tb_eth_tester.vhd b/libraries/io/eth/tb/vhdl/tb_tb_eth_tester.vhd
index 8afc5cbad6..a0b834bb4a 100644
--- a/libraries/io/eth/tb/vhdl/tb_tb_eth_tester.vhd
+++ b/libraries/io/eth/tb/vhdl/tb_tb_eth_tester.vhd
@@ -23,36 +23,77 @@
--
-- References:
-- [1] https://support.astron.nl/confluence/display/L2M/L6+FWLIB+Design+Document%3A+ETH+tester+unit+for+1GbE
+-- [2] https://support.astron.nl/confluence/display/L2M/L4+SDPFW+Decision%3A+Application+header+size+in+Ethernet+packets
--
-- Usage:
--- > as 3
+-- > as 8
-- > run -all
LIBRARY IEEE, diag_lib;
USE IEEE.std_logic_1164.ALL;
USE diag_lib.diag_pkg.ALL;
+USE work.tb_eth_tester_pkg.ALL;
ENTITY tb_tb_eth_tester IS
END tb_tb_eth_tester;
ARCHITECTURE tb OF tb_tb_eth_tester IS
- CONSTANT c_bg_ctrl_rst : t_diag_block_gen_integer := func_diag_bg_ctrl_slv_to_integer(c_diag_block_gen_rst);
- CONSTANT c_bg_ctrl_first : t_diag_block_gen_integer := ('1', '1', 50, 8, 100, 0, 30, 0); -- for first stream
- CONSTANT c_bg_ctrl_others : t_diag_block_gen_integer := ('1', '1', 30, 8, 10, 0, 30, 0); -- for other streams
- CONSTANT c_bg_ctrl_len_0 : t_diag_block_gen_integer := ('1', '1', 80, 8, 100, 0, 30, 0); -- nof octets
- CONSTANT c_bg_ctrl_len_1 : t_diag_block_gen_integer := ('1', '1', 81, 8, 100, 0, 30, 0); -- nof octets
- CONSTANT c_bg_ctrl_len_2 : t_diag_block_gen_integer := ('1', '1', 82, 8, 100, 0, 30, 0); -- nof octets
- CONSTANT c_bg_ctrl_len_3 : t_diag_block_gen_integer := ('1', '1', 83, 8, 100, 0, 30, 0); -- nof octets
+ -- Multi tb
+ CONSTANT c_tb_w : NATURAL := 50; -- sufficiently long to fit all tb instances
+ CONSTANT c_tb_end_vec : STD_LOGIC_VECTOR(c_tb_w-1 DOWNTO 0) := (OTHERS=>'1');
+
+ SIGNAL tb_end_vec : STD_LOGIC_VECTOR(c_tb_w-1 DOWNTO 0) := c_tb_end_vec;
+ SIGNAL tb_end : STD_LOGIC := '0';
+
+ -- Tb
+ CONSTANT c_eth_clk_MHz : NATURAL := 125;
+ CONSTANT c_st_clk_MHz : NATURAL := 200;
+ CONSTANT c_nof_sync : NATURAL := 3;
+ CONSTANT c_nof_sync_many : NATURAL := 100;
+ CONSTANT c_nof_streams : NATURAL := 3;
+
+ -- Tx packet size and gap size in octets
+ CONSTANT c_block_len : NATURAL := 50; -- BG block length of first stream [0]
+ CONSTANT c_link_len : NATURAL := func_eth_tester_eth_packet_on_link_length(c_block_len);
+
+ -- For near maximum 1Gbps link rate the c_block_len + c_gap_len_min time
+ -- in the st_clk domain equals c_link_len time in eth_clk domain.
+ CONSTANT c_gap_len_min : NATURAL := c_link_len * c_st_clk_MHz / c_eth_clk_MHz - c_block_len;
+ CONSTANT c_slot_len_min : NATURAL := c_block_len + c_gap_len_min;
+
+ -- Choose c_gap_len somewhat larger to have packet link rate < 1 Gbps
+ CONSTANT c_gap_len : NATURAL := c_gap_len_min * 2; -- for g_nof_streams = 1
+ CONSTANT c_short_gap : NATURAL := 10; -- to cause BG xon/xoff flow control
+ CONSTANT c_zero_gap : NATURAL := 0; -- to verify BG ready flow control
+
+ -- Choose c_others_len > c_block_len, so same c_gap_len is suitable to
+ -- keep Ethernet link rate < 1 Gbps
+ CONSTANT c_other_len : NATURAL := 65; -- BG block length of other streams [c_nof_streams-1 : 1]
+
+ -- BG ctrl
+ CONSTANT c_high : NATURAL := c_diag_bg_mem_max_adr; -- = 2**24
+
+ CONSTANT c_bg_ctrl_rst : t_diag_block_gen_integer := ('0', '0', 1, 8, c_gap_len, 0, c_high, 0); -- place holder for unused stream
+
+ CONSTANT c_bg_ctrl_one : t_diag_block_gen_integer := ('1', '1', c_block_len, 8, c_gap_len, 0, c_high, 0); -- for first stream
+ CONSTANT c_bg_ctrl_others : t_diag_block_gen_integer := ('1', '1', c_other_len, 8, c_gap_len, 0, c_high, 0); -- for other streams
+
+ CONSTANT c_bg_ctrl_len_0 : t_diag_block_gen_integer := ('1', '1', c_block_len+0, 8, c_gap_len, 0, c_high, 0); -- nof octets
+ CONSTANT c_bg_ctrl_len_1 : t_diag_block_gen_integer := ('1', '1', c_block_len+1, 8, c_gap_len, 0, c_high, 0); -- nof octets
+ CONSTANT c_bg_ctrl_len_2 : t_diag_block_gen_integer := ('1', '1', c_block_len+2, 8, c_gap_len, 0, c_high, 0); -- nof octets
+ CONSTANT c_bg_ctrl_len_3 : t_diag_block_gen_integer := ('1', '1', c_block_len+3, 8, c_gap_len, 0, c_high, 0); -- nof octets
+
+ CONSTANT c_bg_ctrl_multiple_first : t_diag_block_gen_integer := ('1', '1', c_block_len, 8, c_nof_streams * c_gap_len, 0, c_high, 0); -- for first stream
+ CONSTANT c_bg_ctrl_multiple_others : t_diag_block_gen_integer := ('1', '1', c_other_len, 8, c_nof_streams * c_gap_len, 0, c_high, 0); -- for other streams
- SIGNAL tb_end : STD_LOGIC := '0'; -- declare tb_end to avoid 'No objects found' error on 'when -label tb_end'
-
BEGIN
-- g_tb_index : NATURAL := 0; -- use to incremental delay logging from tb instances in tb_tb
--- g_tb_str : STRING := ""; -- use to distinguish logging from tb instances in tb_tb
+-- g_nof_sync : NATURAL := 3; -- number of BG sync intervals to set c_run_time
-- g_nof_streams : NATURAL := 2;
-- g_loopback_eth : BOOLEAN := FALSE; -- FALSE = sosi loopback, TRUE = eth loopback
+-- g_eth_sim_level : NATURAL := 0; -- when g_loopback_eth = TRUE, then 0 = use IP; 1 = use fast serdes model
--
-- -- t_diag_block_gen_integer =
-- -- sl: enable
@@ -66,13 +107,55 @@ BEGIN
-- g_bg_ctrl_first : t_diag_block_gen_integer := ('1', '1', 50, 8, 100, 0, 30, 0); -- for first stream
-- g_bg_ctrl_others : t_diag_block_gen_integer := ('1', '1', 30, 8, 10, 0, 30, 0) -- for other streams
- u_one_stream : ENTITY work.tb_eth_tester GENERIC MAP (0, "tb_one_stream: ", 1, FALSE, c_bg_ctrl_first, c_bg_ctrl_rst);
- u_multiple_streams : ENTITY work.tb_eth_tester GENERIC MAP (1, "tb_multiple_streams: ", 3, FALSE, c_bg_ctrl_first, c_bg_ctrl_others);
+ -- Tb instance prefix:
+ -- . st = streaming Tx-Rx interface
+ -- . sim = sim_tse Tx-Rx interface
+ -- . tech = tech_tse Tx-Rx interface
+
+ -----------------------------------------------------------------------------
+ -- Single stream
+ -----------------------------------------------------------------------------
+ -- Try different loopback interfaces
+ u_st : ENTITY work.tb_eth_tester GENERIC MAP (0, c_nof_sync, 1, FALSE, 1, c_bg_ctrl_one, c_bg_ctrl_rst) PORT MAP (tb_end_vec(0));
+ u_sim_tse : ENTITY work.tb_eth_tester GENERIC MAP (1, c_nof_sync, 1, TRUE, 1, c_bg_ctrl_one, c_bg_ctrl_rst) PORT MAP (tb_end_vec(1));
+ u_tech_tse : ENTITY work.tb_eth_tester GENERIC MAP (2, c_nof_sync, 1, TRUE, 0, c_bg_ctrl_one, c_bg_ctrl_rst) PORT MAP (tb_end_vec(2));
+
+ -- Try different BG block lengths to verify sosi.empty nof octets in last word
+ u_st_bg_len_0 : ENTITY work.tb_eth_tester GENERIC MAP (10, c_nof_sync, 1, FALSE, 1, c_bg_ctrl_len_0, c_bg_ctrl_rst) PORT MAP (tb_end_vec(10));
+ u_st_bg_len_1 : ENTITY work.tb_eth_tester GENERIC MAP (11, c_nof_sync, 1, FALSE, 1, c_bg_ctrl_len_1, c_bg_ctrl_rst) PORT MAP (tb_end_vec(11));
+ u_st_bg_len_2 : ENTITY work.tb_eth_tester GENERIC MAP (12, c_nof_sync, 1, FALSE, 1, c_bg_ctrl_len_2, c_bg_ctrl_rst) PORT MAP (tb_end_vec(12));
+ u_st_bg_len_3 : ENTITY work.tb_eth_tester GENERIC MAP (13, c_nof_sync, 1, FALSE, 1, c_bg_ctrl_len_3, c_bg_ctrl_rst) PORT MAP (tb_end_vec(13));
+
+ -- Try BG xon/xoff block flow control by using smaller gapsize that would exceed 1 Gbps
+ u_st_bg_flow_control : ENTITY work.tb_eth_tester
+ GENERIC MAP (20, c_nof_sync, 1, FALSE, 1,
+ ('1', '1', c_block_len, 8, c_zero_gap, 0, c_high, 0),
+ c_bg_ctrl_rst)
+ PORT MAP (tb_end_vec(20));
+
+ -----------------------------------------------------------------------------
+ -- Multiple streams
+ -----------------------------------------------------------------------------
+ u_st_multiple_streams : ENTITY work.tb_eth_tester
+ GENERIC MAP (30, c_nof_sync, c_nof_streams, FALSE, 1,
+ c_bg_ctrl_multiple_first,
+ c_bg_ctrl_multiple_others)
+ PORT MAP (tb_end_vec(30));
+
+ u_st_multiple_bg_flow_control : ENTITY work.tb_eth_tester
+ GENERIC MAP (31, c_nof_sync_many, c_nof_streams, FALSE, 1,
+ ('1', '1', c_block_len, 8, c_short_gap, 0, c_high, 0),
+ ('1', '1', c_other_len, 8, c_short_gap, 0, c_high, 0))
+ PORT MAP (tb_end_vec(31));
+
+ tb_end <= '1' WHEN tb_end_vec = c_tb_end_vec ELSE '0';
- -- Try different BG block lengths to verify nof octets in last word
- u_bg_len_0 : ENTITY work.tb_eth_tester GENERIC MAP (10, "tb_bg_len_0: ", 1, FALSE, c_bg_ctrl_len_0, c_bg_ctrl_rst);
- u_bg_len_1 : ENTITY work.tb_eth_tester GENERIC MAP (11, "tb_bg_len_1: ", 1, FALSE, c_bg_ctrl_len_1, c_bg_ctrl_rst);
- u_bg_len_2 : ENTITY work.tb_eth_tester GENERIC MAP (12, "tb_bg_len_2: ", 1, FALSE, c_bg_ctrl_len_2, c_bg_ctrl_rst);
- u_bg_len_3 : ENTITY work.tb_eth_tester GENERIC MAP (13, "tb_bg_len_3: ", 1, FALSE, c_bg_ctrl_len_3, c_bg_ctrl_rst);
+ p_tb_end : PROCESS
+ BEGIN
+ WAIT UNTIL tb_end='1';
+ WAIT FOR 1 ns;
+ REPORT "Multi tb simulation finished." SEVERITY FAILURE;
+ WAIT;
+ END PROCESS;
END tb;
--
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