Skip to content

W
White Rabbit Switch - Gateware
Commit a72c35b0 authored by Grzegorz Daniluk's avatar Grzegorz Daniluk
Browse files
Options

swcore: add wishbone register to enable dropping traffic in OB if HP frames are queued

parent e94dffe1
Hide whitespace changes
Inline Side-by-side
Showing with 57 additions and 36 deletions
modules/wrsw_swcore/swc_core.vhd
View file @ a72c35b0
......@@ -131,14 +131,8 @@ entity swc_core is
-------------------------------------------------------------------------------
pp_req_i : in std_logic_vector(g_num_ports - 1 downto 0);
pp_quanta_i : in std_logic_vector(g_num_ports*16 - 1 downto 0);
pp_classes_i : in std_logic_vector(g_num_ports*8 - 1 downto 0);
------------------------------------------------------------------------------
-- I/F misc
-------------------------------------------------------------------------------
shaper_drop_at_hp_ena_i : in std_logic
);
pp_classes_i : in std_logic_vector(g_num_ports*8 - 1 downto 0)
);
end swc_core;
architecture rtl of swc_core is
......@@ -189,8 +183,6 @@ architecture rtl of swc_core is
src_i => src_i,
src_o => src_o,
shaper_drop_at_hp_ena_i => shaper_drop_at_hp_ena_i,
global_pause_i => global_pause_i,
perport_pause_i=> perport_pause_i,
......
modules/wrsw_swcore/swc_swcore_pkg.vhd
View file @ a72c35b0
......@@ -709,9 +709,7 @@ component swc_multiport_pck_pg_free_module is
rtu_rsp_i : in t_rtu_response_array(g_num_ports - 1 downto 0);
rtu_ack_o : out std_logic_vector(g_num_ports - 1 downto 0);
nomem_o : out std_logic;
shaper_drop_at_hp_ena_i : in std_logic
nomem_o : out std_logic
);
end component;
......@@ -777,10 +775,8 @@ component swc_multiport_pck_pg_free_module is
pp_req_i : in std_logic_vector(g_num_ports - 1 downto 0);
pp_quanta_i : in std_logic_vector(g_num_ports*16 - 1 downto 0);
pp_classes_i : in std_logic_vector(g_num_ports*8 - 1 downto 0);
shaper_drop_at_hp_ena_i : in std_logic
);
pp_classes_i : in std_logic_vector(g_num_ports*8 - 1 downto 0)
);
end component;
component swc_ll_read_data_validation is
......@@ -874,7 +870,7 @@ component swc_multiport_pck_pg_free_module is
port (
rst_n_i : in std_logic;
clk_sys_i : in std_logic;
wb_adr_i : in std_logic_vector(1 downto 0);
wb_adr_i : in std_logic_vector(2 downto 0);
wb_dat_i : in std_logic_vector(31 downto 0);
wb_dat_o : out std_logic_vector(31 downto 0);
wb_cyc_i : in std_logic;
......
modules/wrsw_swcore/swc_wbgen2_pkg.vhd
View file @ a72c35b0
......@@ -3,7 +3,7 @@
---------------------------------------------------------------------------------------
-- File : swc_wbgen2_pkg.vhd
-- Author : auto-generated by wbgen2 from wrsw_swcore.wb
-- Created : Wed Aug 10 12:03:23 2016
-- Created : Tue Sep 13 14:08:37 2016
-- Standard : VHDL'87
---------------------------------------------------------------------------------------
-- THIS FILE WAS GENERATED BY wbgen2 FROM SOURCE FILE wrsw_swcore.wb
......@@ -43,12 +43,14 @@ package swc_wbgen2_pkg is
csr_new_stat_o : std_logic;
afull_thr_o : std_logic_vector(31 downto 0);
afull_thr_load_o : std_logic;
hp_ob_drop_mask_o : std_logic_vector(18 downto 0);
end record;
constant c_swc_out_registers_init_value: t_swc_out_registers := (
csr_new_stat_o => '0',
afull_thr_o => (others => '0'),
afull_thr_load_o => '0'
afull_thr_load_o => '0',
hp_ob_drop_mask_o => (others => '0')
);
function "or" (left, right: t_swc_in_registers) return t_swc_in_registers;
function f_x_to_zero (x:std_logic) return std_logic;
......
modules/wrsw_swcore/swc_wishbone_slave.vhd
View file @ a72c35b0
......@@ -3,7 +3,7 @@
---------------------------------------------------------------------------------------
-- File : swc_wishbone_slave.vhd
-- Author : auto-generated by wbgen2 from wrsw_swcore.wb
-- Created : Wed Aug 10 12:03:23 2016
-- Created : Tue Sep 13 14:08:37 2016
-- Standard : VHDL'87
---------------------------------------------------------------------------------------
-- THIS FILE WAS GENERATED BY wbgen2 FROM SOURCE FILE wrsw_swcore.wb
......@@ -21,7 +21,7 @@ entity swc_wishbone_slave is
port (
rst_n_i : in std_logic;
clk_sys_i : in std_logic;
wb_adr_i : in std_logic_vector(1 downto 0);
wb_adr_i : in std_logic_vector(2 downto 0);
wb_dat_i : in std_logic_vector(31 downto 0);
wb_dat_o : out std_logic_vector(31 downto 0);
wb_cyc_i : in std_logic;
......@@ -39,11 +39,12 @@ architecture syn of swc_wishbone_slave is
signal swc_csr_new_stat_dly0 : std_logic ;
signal swc_csr_new_stat_int : std_logic ;
signal swc_hp_ob_drop_mask_int : std_logic_vector(18 downto 0);
signal ack_sreg : std_logic_vector(9 downto 0);
signal rddata_reg : std_logic_vector(31 downto 0);
signal wrdata_reg : std_logic_vector(31 downto 0);
signal bwsel_reg : std_logic_vector(3 downto 0);
signal rwaddr_reg : std_logic_vector(1 downto 0);
signal rwaddr_reg : std_logic_vector(2 downto 0);
signal ack_in_progress : std_logic ;
signal wr_int : std_logic ;
signal rd_int : std_logic ;
......@@ -68,6 +69,7 @@ begin
rddata_reg <= "00000000000000000000000000000000";
swc_csr_new_stat_int <= '0';
regs_o.afull_thr_load_o <= '0';
swc_hp_ob_drop_mask_int <= "0000000000000000000";
elsif rising_edge(clk_sys_i) then
-- advance the ACK generator shift register
ack_sreg(8 downto 0) <= ack_sreg(9 downto 1);
......@@ -82,8 +84,8 @@ begin
end if;
else
if ((wb_cyc_i = '1') and (wb_stb_i = '1')) then
case rwaddr_reg(1 downto 0) is
when "00" =>
case rwaddr_reg(2 downto 0) is
when "000" =>
if (wb_we_i = '1') then
swc_csr_new_stat_int <= wrdata_reg(0);
end if;
......@@ -121,26 +123,46 @@ begin
rddata_reg(29) <= 'X';
ack_sreg(2) <= '1';
ack_in_progress <= '1';
when "01" =>
when "001" =>
if (wb_we_i = '1') then
end if;
rddata_reg(15 downto 0) <= regs_i.stat_min_fpg_i;
rddata_reg(31 downto 16) <= regs_i.stat_max_fpg_i;
ack_sreg(0) <= '1';
ack_in_progress <= '1';
when "10" =>
when "010" =>
if (wb_we_i = '1') then
end if;
rddata_reg(31 downto 0) <= regs_i.cur_fpg_i;
ack_sreg(0) <= '1';
ack_in_progress <= '1';
when "11" =>
when "011" =>
if (wb_we_i = '1') then
regs_o.afull_thr_load_o <= '1';
end if;
rddata_reg(31 downto 0) <= regs_i.afull_thr_i;
ack_sreg(0) <= '1';
ack_in_progress <= '1';
when "100" =>
if (wb_we_i = '1') then
swc_hp_ob_drop_mask_int <= wrdata_reg(18 downto 0);
end if;
rddata_reg(18 downto 0) <= swc_hp_ob_drop_mask_int;
rddata_reg(19) <= 'X';
rddata_reg(20) <= 'X';
rddata_reg(21) <= 'X';
rddata_reg(22) <= 'X';
rddata_reg(23) <= 'X';
rddata_reg(24) <= 'X';
rddata_reg(25) <= 'X';
rddata_reg(26) <= 'X';
rddata_reg(27) <= 'X';
rddata_reg(28) <= 'X';
rddata_reg(29) <= 'X';
rddata_reg(30) <= 'X';
rddata_reg(31) <= 'X';
ack_sreg(0) <= '1';
ack_in_progress <= '1';
when others =>
-- prevent the slave from hanging the bus on invalid address
ack_in_progress <= '1';
......@@ -174,6 +196,8 @@ begin
-- pages
-- pages
regs_o.afull_thr_o <= wrdata_reg(31 downto 0);
-- Port mask
regs_o.hp_ob_drop_mask_o <= swc_hp_ob_drop_mask_int;
rwaddr_reg <= wb_adr_i;
wb_stall_o <= (not ack_sreg(0)) and (wb_stb_i and wb_cyc_i);
-- ACK signal generation. Just pass the LSB of ACK counter.
......
modules/wrsw_swcore/wrsw_swcore.wb
View file @ a72c35b0
......@@ -106,5 +106,18 @@ peripheral {
};
};
reg {
name = "HP OB register";
description = "Enables dropping regular traffic at the output of swcore ports when HP traffic is queued.";
prefix = "HP_OB";
field {
name = "Port mask";
prefix = "DROP_MASK";
size = 19;
type = SLV;
access_dev = READ_ONLY;
access_bus = READ_WRITE;
};
};
};
modules/wrsw_swcore/xswc_core.vhd
View file @ a72c35b0
......@@ -109,8 +109,6 @@ entity xswc_core is
global_pause_i : in t_global_pause_request_array(g_num_global_pause-1 downto 0);
shaper_drop_at_hp_ena_i : in std_logic := '0';
-------------------------------------------------------------------------------
-- I/F with Tx PAUSE triggers (i.e. Endpoints)
-------------------------------------------------------------------------------
......@@ -420,7 +418,7 @@ architecture rtl of xswc_core is
port map (
rst_n_i => rst_n_i,
clk_sys_i => clk_i,
wb_adr_i => wb_in.adr(1 downto 0),
wb_adr_i => wb_in.adr(2 downto 0),
wb_dat_i => wb_in.dat,
wb_dat_o => wb_out.dat,
wb_cyc_i => wb_in.cyc,
......@@ -678,7 +676,7 @@ architecture rtl of xswc_core is
--: output traffic shaper (PAUSE + time-aware-shaper)
-------------------------------------------------------------------------------
ots_output_mask_i => ots2ob_output_masks(i),
ots_output_drop_at_rx_hp_i=> shaper_drop_at_hp_ena_i,
ots_output_drop_at_rx_hp_i=> regs_fromwb.hp_ob_drop_mask_o(i),
-------------------------------------------------------------------------------
-- pWB : output (goes to the Endpoint)
......
top/bare_top/scb_top_bare.vhd
View file @ a72c35b0
......@@ -831,8 +831,6 @@ begin
snk_i => swc_snk_in,
snk_o => swc_snk_out,
shaper_drop_at_hp_ena_i => shaper_drop_at_hp_ena,
-- pause stuff
global_pause_i => global_pause,
perport_pause_i => fc_rx_pause,
......
top/bare_top/wrsw_components_pkg.vhd
View file @ a72c35b0
......@@ -301,7 +301,6 @@ package wrsw_components_pkg is
global_pause_i : in t_global_pause_request_array(g_num_global_pause-1 downto 0);
perport_pause_i : in t_pause_request_array(g_num_ports-1 downto 0);
shaper_drop_at_hp_ena_i : in std_logic := '0';
rtu_rsp_i : in t_rtu_response_array(g_num_ports - 1 downto 0);
rtu_ack_o : out std_logic_vector(g_num_ports - 1 downto 0);
rtu_abort_o : out std_logic_vector(g_num_ports - 1 downto 0);
......
top/bare_top/wrsw_top_pkg.vhd
View file @ a72c35b0
......@@ -360,7 +360,6 @@ package wrsw_top_pkg is
global_pause_i : in t_global_pause_request_array(g_num_global_pause-1 downto 0);
perport_pause_i : in t_pause_request_array(g_num_ports-1 downto 0);
shaper_drop_at_hp_ena_i : in std_logic := '0';
dbg_o : out std_logic_vector(g_num_dbg_vector_width - 1 downto 0);
rtu_rsp_i : in t_rtu_response_array(g_num_ports - 1 downto 0);
rtu_ack_o : out std_logic_vector(g_num_ports - 1 downto 0);
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment