-- here all frame checking has to be done, if the frame fits into protocol standards
-- if so FR_FRAME_VALID_OUT is asserted after having received all bytes of a frame
-- otherwise, after receiving all bytes, FR_FRAME_VALID_OUT keeps low and the fifo is cleared
--- also a part of addresses assignemt has to be done here
+-- also a part of addresses assignment has to be done here
entity trb_net16_gbe_frame_receiver is
port (
RESET : in std_logic;
LINK_OK_IN : in std_logic;
ALLOW_RX_IN : in std_logic;
- RX_MAC_CLK : in std_logic; -- receiver serdes clock
MY_MAC_IN : in std_logic_vector(47 downto 0);
-
- MY_TRBNET_ADDRESS_IN : in std_logic_vector(15 downto 0);
+--
+ MY_TRBNET_ADDRESS_IN : in std_logic_vector(15 downto 0) := (others => '0');
ISSUE_REBOOT_OUT : out std_logic;
-
-- input signals from TS_MAC
MAC_RX_EOF_IN : in std_logic;
MAC_RX_ER_IN : in std_logic;
MAC_RX_FIFO_FULL_OUT : out std_logic;
MAC_RX_STAT_EN_IN : in std_logic;
MAC_RX_STAT_VEC_IN : in std_logic_vector(31 downto 0);
-
-- output signal to control logic
FR_Q_OUT : out std_logic_vector(8 downto 0);
FR_RD_EN_IN : in std_logic;
FR_ALLOWED_IP_IN : in std_logic_vector(31 downto 0);
FR_ALLOWED_UDP_IN : in std_logic_vector(31 downto 0);
FR_VLAN_ID_IN : in std_logic_vector(31 downto 0);
-
+--
FR_SRC_MAC_ADDRESS_OUT : out std_logic_vector(47 downto 0);
FR_DEST_MAC_ADDRESS_OUT : out std_logic_vector(47 downto 0);
FR_SRC_IP_ADDRESS_OUT : out std_logic_vector(31 downto 0);
FR_DEST_IP_ADDRESS_OUT : out std_logic_vector(31 downto 0);
FR_SRC_UDP_PORT_OUT : out std_logic_vector(15 downto 0);
FR_DEST_UDP_PORT_OUT : out std_logic_vector(15 downto 0);
-
+--
MONITOR_RX_BYTES_OUT : out std_logic_vector(31 downto 0);
MONITOR_RX_FRAMES_OUT : out std_logic_vector(31 downto 0);
MONITOR_DROPPED_OUT : out std_logic_vector(31 downto 0)
);
end trb_net16_gbe_frame_receiver;
-
architecture trb_net16_gbe_frame_receiver of trb_net16_gbe_frame_receiver is
---attribute HGROUP : string;
---attribute HGROUP of trb_net16_gbe_frame_receiver : architecture is "GBE_LINK_group";
-
attribute syn_encoding : string;
-type filter_states is (IDLE, REMOVE_DEST, REMOVE_SRC, REMOVE_TYPE, SAVE_FRAME, DROP_FRAME, REMOVE_VID, REMOVE_VTYPE, REMOVE_IP, REMOVE_UDP, DECIDE, CLEANUP);
+type filter_states is (IDLE, REMOVE_DEST, REMOVE_SRC, REMOVE_TYPE, SAVE_FRAME, DROP_FRAME,
+ REMOVE_VID, REMOVE_VTYPE, REMOVE_IP, REMOVE_UDP, DECIDE, CLEANUP);
signal filter_current_state, filter_next_state : filter_states;
attribute syn_encoding of filter_current_state : signal is "onehot";
signal sizes_fifo_full : std_logic;
signal sizes_fifo_empty : std_logic;
-signal remove_ctr : std_logic_vector(7 downto 0);
+signal remove_ctr : unsigned(7 downto 0);
signal new_frame : std_logic;
signal new_frame_lock : std_logic := '0';
signal saved_frame_type : std_logic_vector(15 downto 0);
signal saved_src_udp : std_logic_vector(15 downto 0);
signal saved_dest_udp : std_logic_vector(15 downto 0);
-signal dump : std_logic_vector(7 downto 0);
-signal dump2 : std_logic_vector(7 downto 0);
-
-signal error_frames_ctr : std_logic_vector(15 downto 0);
+signal error_frames_ctr : unsigned(15 downto 0);
+signal dbg_rec_frames : unsigned(31 downto 0);
+signal dbg_drp_frames : unsigned(31 downto 0);
+signal mon_rec_bytes : unsigned(31 downto 0);
--- debug signals
-signal dbg_rec_frames : std_logic_vector(31 downto 0);
-signal dbg_drp_frames : std_logic_vector(31 downto 0);
signal state : std_logic_vector(3 downto 0);
-signal rx_data, fr_q : std_logic_vector(8 downto 0);
+signal rx_data : std_logic_vector(8 downto 0);
+signal fr_q : std_logic_vector(8 downto 0);
-signal fr_src_ip, fr_dest_ip : std_logic_vector(31 downto 0);
-signal fr_dest_udp, fr_src_udp, fr_frame_size, fr_frame_proto : std_logic_vector(15 downto 0);
-signal fr_dest_mac, fr_src_mac : std_logic_vector(47 downto 0);
-signal fr_ip_proto : std_logic_vector(7 downto 0);
-signal mon_rec_bytes : std_logic_vector(31 downto 0);
+signal fr_src_ip : std_logic_vector(31 downto 0);
+signal fr_dest_ip : std_logic_vector(31 downto 0);
+signal fr_dest_udp : std_logic_vector(15 downto 0);
+signal fr_src_udp : std_logic_vector(15 downto 0);
+signal fr_frame_size : std_logic_vector(15 downto 0);
+signal fr_frame_proto : std_logic_vector(15 downto 0);
+signal fr_dest_mac : std_logic_vector(47 downto 0);
+signal fr_src_mac : std_logic_vector(47 downto 0);
+signal fr_ip_proto : std_logic_vector(7 downto 0);
attribute syn_preserve : boolean;
attribute syn_keep : boolean;
begin
-- new_frame is asserted when first byte of the frame arrives
-NEW_FRAME_PROC : process(RX_MAC_CLK)
-begin
- if rising_edge(RX_MAC_CLK) then
- if (LINK_OK_IN = '0' or MAC_RX_EOF_IN = '1') then
- new_frame <= '0';
- new_frame_lock <= '0';
- elsif (new_frame_lock = '0') and (MAC_RX_EN_IN = '1') then
- new_frame <= '1';
- new_frame_lock <= '1';
- else
- new_frame <= '0';
- new_frame_lock <= new_frame_lock;
- end if;
- end if;
-end process NEW_FRAME_PROC;
-
-
-FILTER_MACHINE_PROC : process(RX_MAC_CLK, RESET)
+THE_NEW_FRAME_PROC: process( CLK )
begin
- if RESET = '1' then
- filter_current_state <= IDLE;
- elsif rising_edge(RX_MAC_CLK) then
- filter_current_state <= filter_next_state;
- end if;
-end process FILTER_MACHINE_PROC;
-
-FILTER_MACHINE : process(filter_current_state, saved_frame_type, LINK_OK_IN, saved_proto, MY_MAC_IN, saved_dest_mac, remove_ctr, new_frame, MAC_RX_EOF_IN, frame_type_valid, ALLOW_RX_IN)
+ if( rising_edge(CLK) )then
+ if ( (LINK_OK_IN = '0') or (MAC_RX_EOF_IN = '1') ) then
+ new_frame <= '0';
+ new_frame_lock <= '0';
+ elsif( (new_frame_lock = '0') and (MAC_RX_EN_IN = '1') ) then
+ new_frame <= '1';
+ new_frame_lock <= '1';
+ else
+ new_frame <= '0';
+ new_frame_lock <= new_frame_lock;
+ end if;
+ end if;
+end process THE_NEW_FRAME_PROC;
+
+THE_FILTER_MACHINE_PROC: process( CLK )
begin
+ if( rising_edge(CLK) ) then
+ if( RESET = '1' ) then
+ filter_current_state <= IDLE;
+ else
+ filter_current_state <= filter_next_state;
+ end if;
+ end if;
+end process THE_FILTER_MACHINE_PROC;
- case filter_current_state is
-
- when IDLE =>
- state <= x"1";
- if (new_frame = '1') and (ALLOW_RX_IN = '1') and (LINK_OK_IN = '1') then
- filter_next_state <= REMOVE_DEST;
- else
- filter_next_state <= IDLE;
- end if;
-
- -- frames arrive without preamble!
- when REMOVE_DEST =>
- state <= x"3";
- if (remove_ctr = x"03") then -- counter starts with a delay that's why only 3
- -- destination MAC address filtering here
- if (saved_dest_mac = MY_MAC_IN) or (saved_dest_mac = x"ffffffffffff") then -- must accept broadcasts for ARP
- filter_next_state <= REMOVE_SRC;
- else
- filter_next_state <= DECIDE;
- end if;
- else
- filter_next_state <= REMOVE_DEST;
- end if;
-
- when REMOVE_SRC =>
- state <= x"4";
- if (remove_ctr = x"09") then
- filter_next_state <= REMOVE_TYPE;
- else
- filter_next_state <= REMOVE_SRC;
- end if;
-
- when REMOVE_TYPE =>
- state <= x"5";
- if (remove_ctr = x"0b") then
- if (saved_frame_type = x"8100") then -- VLAN tagged frame
- filter_next_state <= REMOVE_VID;
- else -- no VLAN tag
- if (saved_frame_type = x"0800") then -- in case of IP continue removing headers
- filter_next_state <= REMOVE_IP;
- else
- filter_next_state <= DECIDE;
- end if;
- end if;
- else
- filter_next_state <= REMOVE_TYPE;
- end if;
-
- when REMOVE_VID =>
- state <= x"a";
- if (remove_ctr = x"0d") then
- filter_next_state <= REMOVE_VTYPE;
- else
- filter_next_state <= REMOVE_VID;
- end if;
-
- when REMOVE_VTYPE =>
- state <= x"b";
- if (remove_ctr = x"0f") then
- if (saved_frame_type = x"0800") then -- in case of IP continue removing headers
- filter_next_state <= REMOVE_IP;
- else
- filter_next_state <= DECIDE;
- end if;
- else
- filter_next_state <= REMOVE_VTYPE;
- end if;
-
- when REMOVE_IP =>
- state <= x"c";
- if (remove_ctr = x"11") then
- if (saved_proto = x"11") then -- forced to recognize udp only, TODO check all protocols
- filter_next_state <= REMOVE_UDP;
- else
- filter_next_state <= DECIDE; -- changed from drop
- end if;
- else
- filter_next_state <= REMOVE_IP;
- end if;
-
- when REMOVE_UDP =>
- state <= x"d";
- if (remove_ctr = x"19") then
- filter_next_state <= DECIDE;
- else
- filter_next_state <= REMOVE_UDP;
- end if;
-
- when DECIDE =>
- state <= x"6";
- if (frame_type_valid = '1') then
- filter_next_state <= SAVE_FRAME;
- elsif (saved_frame_type = x"0806") then
- filter_next_state <= SAVE_FRAME;
- else
- filter_next_state <= DROP_FRAME;
- end if;
-
- when SAVE_FRAME =>
- state <= x"7";
- if (MAC_RX_EOF_IN = '1') then
- filter_next_state <= CLEANUP;
- else
- filter_next_state <= SAVE_FRAME;
- end if;
-
- when DROP_FRAME =>
- state <= x"8";
- if (MAC_RX_EOF_IN = '1') then
- filter_next_state <= CLEANUP;
- else
- filter_next_state <= DROP_FRAME;
- end if;
-
- when CLEANUP =>
- state <= x"9";
- filter_next_state <= IDLE;
-
- when others => null;
-
- end case;
-end process;
+THE_FILTER_MACHINE : process( filter_current_state, saved_frame_type, LINK_OK_IN, saved_proto, MY_MAC_IN,
+ saved_dest_mac, remove_ctr, new_frame, MAC_RX_EOF_IN, frame_type_valid, ALLOW_RX_IN)
+begin
+ case filter_current_state is
+
+ when IDLE =>
+ state <= x"1";
+ if( (new_frame = '1') and (ALLOW_RX_IN = '1') and (LINK_OK_IN = '1') ) then
+ filter_next_state <= REMOVE_DEST;
+ else
+ filter_next_state <= IDLE;
+ end if;
+
+ -- frames arrive without preamble!
+ when REMOVE_DEST =>
+ state <= x"3";
+ if( remove_ctr = x"03" ) then -- counter starts with a delay that's why only 3
+ -- destination MAC address filtering here
+ if( (saved_dest_mac = MY_MAC_IN) or (saved_dest_mac = x"ffffffffffff") ) then -- must accept broadcasts for ARP
+ filter_next_state <= REMOVE_SRC;
+ else
+ filter_next_state <= DECIDE;
+ end if;
+ else
+ filter_next_state <= REMOVE_DEST;
+ end if;
+
+ when REMOVE_SRC =>
+ state <= x"4";
+ if( remove_ctr = x"09" ) then
+ filter_next_state <= REMOVE_TYPE;
+ else
+ filter_next_state <= REMOVE_SRC;
+ end if;
+
+ when REMOVE_TYPE =>
+ state <= x"5";
+ if( remove_ctr = x"0b" ) then
+ if( saved_frame_type = x"8100" ) then -- VLAN tagged frame
+ filter_next_state <= REMOVE_VID;
+ else -- no VLAN tag
+ if( saved_frame_type = x"0800" ) then -- in case of IP continue removing headers
+ filter_next_state <= REMOVE_IP;
+ else
+ filter_next_state <= DECIDE;
+ end if;
+ end if;
+ else
+ filter_next_state <= REMOVE_TYPE;
+ end if;
+
+ when REMOVE_VID =>
+ state <= x"a";
+ if( remove_ctr = x"0d" ) then
+ filter_next_state <= REMOVE_VTYPE;
+ else
+ filter_next_state <= REMOVE_VID;
+ end if;
+
+ when REMOVE_VTYPE =>
+ state <= x"b";
+ if( remove_ctr = x"0f" ) then
+ if( saved_frame_type = x"0800" ) then -- in case of IP continue removing headers
+ filter_next_state <= REMOVE_IP;
+ else
+ filter_next_state <= DECIDE;
+ end if;
+ else
+ filter_next_state <= REMOVE_VTYPE;
+ end if;
+
+ when REMOVE_IP =>
+ state <= x"c";
+ if( remove_ctr = x"11" ) then
+ if( saved_proto = x"11" ) then -- forced to recognize udp only, TODO check all protocols
+ filter_next_state <= REMOVE_UDP;
+ else
+ filter_next_state <= DECIDE; -- changed from drop
+ end if;
+ else
+ filter_next_state <= REMOVE_IP;
+ end if;
+
+ when REMOVE_UDP =>
+ state <= x"d";
+ if( remove_ctr = x"19" ) then
+ filter_next_state <= DECIDE;
+ else
+ filter_next_state <= REMOVE_UDP;
+ end if;
+
+ when DECIDE =>
+ state <= x"6";
+ if ( frame_type_valid = '1' ) then
+ filter_next_state <= SAVE_FRAME;
+ elsif( saved_frame_type = x"0806" ) then
+ -- ARP?
+ filter_next_state <= SAVE_FRAME;
+ else
+ filter_next_state <= DROP_FRAME;
+ end if;
+
+ when SAVE_FRAME =>
+ state <= x"7";
+ if( MAC_RX_EOF_IN = '1' ) then
+ filter_next_state <= CLEANUP;
+ else
+ filter_next_state <= SAVE_FRAME;
+ end if;
+
+ when DROP_FRAME =>
+ state <= x"8";
+ if( MAC_RX_EOF_IN = '1' ) then
+ filter_next_state <= CLEANUP;
+ else
+ filter_next_state <= DROP_FRAME;
+ end if;
+
+ when CLEANUP =>
+ state <= x"9";
+ filter_next_state <= IDLE;
+
+ when others => null;
+
+ end case;
+end process THE_FILTER_MACHINE;
-- counts the bytes to be removed from the ethernet headers fields
-REMOVE_CTR_PROC : process(RX_MAC_CLK)
+REMOVE_CTR_PROC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- if (filter_current_state = IDLE) or
- (filter_current_state = REMOVE_VTYPE and remove_ctr = x"0f") or
- (filter_current_state = REMOVE_TYPE and remove_ctr = x"0b") then
-
- remove_ctr <= (others => '1');
- elsif (MAC_RX_EN_IN = '1') and (filter_current_state /= IDLE) then --and (filter_current_state /= CLEANUP) then
- remove_ctr <= remove_ctr + x"1";
- else
- remove_ctr <= remove_ctr;
- end if;
- end if;
+ if( rising_edge(CLK) ) then
+ if( (filter_current_state = IDLE) or
+ (filter_current_state = REMOVE_VTYPE and remove_ctr = x"0f") or
+ (filter_current_state = REMOVE_TYPE and remove_ctr = x"0b") ) then
+ remove_ctr <= (others => '1');
+ elsif( (MAC_RX_EN_IN = '1') and (filter_current_state /= IDLE) ) then
+ remove_ctr <= remove_ctr + 1;
+ else
+ remove_ctr <= remove_ctr;
+ end if;
+ end if;
end process REMOVE_CTR_PROC;
-SAVED_PROTO_PROC : process(RX_MAC_CLK)
+THE_SAVED_PROTO_PROC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- if (filter_current_state = CLEANUP) then
- saved_proto <= (others => '0');
- elsif (filter_current_state = REMOVE_IP) and (remove_ctr = x"07") then
- saved_proto <= MAC_RXD_IN;
- else
- saved_proto <= saved_proto;
- end if;
- end if;
-end process SAVED_PROTO_PROC;
-
-SAVED_SRC_IP_PROC : process(RX_MAC_CLK)
+ if( rising_edge(CLK) ) then
+ if ( filter_current_state = CLEANUP ) then
+ saved_proto <= (others => '0');
+ elsif( (filter_current_state = REMOVE_IP) and (remove_ctr = x"07") ) then
+ saved_proto <= MAC_RXD_IN;
+ else
+ saved_proto <= saved_proto;
+ end if;
+ end if;
+end process THE_SAVED_PROTO_PROC;
+
+THE_SAVED_SRC_IP_PROC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- if (filter_current_state = CLEANUP) then
- saved_src_ip <= (others => '0');
- elsif (filter_current_state = REMOVE_IP) and (remove_ctr = x"0a") then
- saved_src_ip(7 downto 0) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_IP) and (remove_ctr = x"0b") then
- saved_src_ip(15 downto 8) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_IP) and (remove_ctr = x"0c") then
- saved_src_ip(23 downto 16) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_IP) and (remove_ctr = x"0d") then
- saved_src_ip(31 downto 24) <= MAC_RXD_IN;
- else
- saved_src_ip <= saved_src_ip;
- end if;
- end if;
-end process SAVED_SRC_IP_PROC;
-
-SAVED_DEST_IP_PROC : process(RX_MAC_CLK)
+ if( rising_edge(CLK) ) then
+ if ( filter_current_state = CLEANUP ) then
+ saved_src_ip <= (others => '0');
+ elsif( (filter_current_state = REMOVE_IP) and (remove_ctr = x"0a") ) then
+ saved_src_ip(7 downto 0) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_IP) and (remove_ctr = x"0b") ) then
+ saved_src_ip(15 downto 8) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_IP) and (remove_ctr = x"0c") ) then
+ saved_src_ip(23 downto 16) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_IP) and (remove_ctr = x"0d") ) then
+ saved_src_ip(31 downto 24) <= MAC_RXD_IN;
+ else
+ saved_src_ip <= saved_src_ip;
+ end if;
+ end if;
+end process THE_SAVED_SRC_IP_PROC;
+
+THE_SAVED_DEST_IP_PROC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- if (filter_current_state = CLEANUP) then
- saved_dest_ip <= (others => '0');
- elsif (filter_current_state = REMOVE_IP) and (remove_ctr = x"0e") then
- saved_dest_ip(7 downto 0) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_IP) and (remove_ctr = x"0f") then
- saved_dest_ip(15 downto 8) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_IP) and (remove_ctr = x"10") then
- saved_dest_ip(23 downto 16) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_IP) and (remove_ctr = x"11") then
- saved_dest_ip(31 downto 24) <= MAC_RXD_IN;
- else
- saved_dest_ip <= saved_dest_ip;
- end if;
- end if;
-end process SAVED_DEST_IP_PROC;
-
-SAVED_SRC_UDP_PROC : process(RX_MAC_CLK)
+ if( rising_edge(CLK) ) then
+ if ( filter_current_state = CLEANUP ) then
+ saved_dest_ip <= (others => '0');
+ elsif( (filter_current_state = REMOVE_IP) and (remove_ctr = x"0e") ) then
+ saved_dest_ip(7 downto 0) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_IP) and (remove_ctr = x"0f") ) then
+ saved_dest_ip(15 downto 8) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_IP) and (remove_ctr = x"10") ) then
+ saved_dest_ip(23 downto 16) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_IP) and (remove_ctr = x"11") ) then
+ saved_dest_ip(31 downto 24) <= MAC_RXD_IN;
+ else
+ saved_dest_ip <= saved_dest_ip;
+ end if;
+ end if;
+end process THE_SAVED_DEST_IP_PROC;
+
+THE_SAVED_SRC_UDP_PROC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- if (filter_current_state = CLEANUP) then
- saved_src_udp <= (others => '0');
- elsif (filter_current_state = REMOVE_UDP) and (remove_ctr = x"12") then
- saved_src_udp(15 downto 8) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_UDP) and (remove_ctr = x"13") then
- saved_src_udp(7 downto 0) <= MAC_RXD_IN;
- else
- saved_src_udp <= saved_src_udp;
- end if;
- end if;
-end process SAVED_SRC_UDP_PROC;
-
-SAVED_DEST_UDP_PROC : process(RX_MAC_CLK)
+ if( rising_edge(CLK) ) then
+ if ( filter_current_state = CLEANUP ) then
+ saved_src_udp <= (others => '0');
+ elsif( (filter_current_state = REMOVE_UDP) and (remove_ctr = x"12") ) then
+ saved_src_udp(15 downto 8) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_UDP) and (remove_ctr = x"13") ) then
+ saved_src_udp(7 downto 0) <= MAC_RXD_IN;
+ else
+ saved_src_udp <= saved_src_udp;
+ end if;
+ end if;
+end process THE_SAVED_SRC_UDP_PROC;
+
+THE_SAVED_DEST_UDP_PROC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- if (filter_current_state = CLEANUP) then
- saved_dest_udp <= (others => '0');
- elsif (filter_current_state = REMOVE_UDP) and (remove_ctr = x"14") then
- saved_dest_udp(15 downto 8) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_UDP) and (remove_ctr = x"15") then
- saved_dest_udp(7 downto 0) <= MAC_RXD_IN;
- else
- saved_dest_udp <= saved_dest_udp;
- end if;
- end if;
-end process SAVED_DEST_UDP_PROC;
+ if( rising_edge(CLK) ) then
+ if ( filter_current_state = CLEANUP ) then
+ saved_dest_udp <= (others => '0');
+ elsif( (filter_current_state = REMOVE_UDP) and (remove_ctr = x"14") ) then
+ saved_dest_udp(15 downto 8) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_UDP) and (remove_ctr = x"15") ) then
+ saved_dest_udp(7 downto 0) <= MAC_RXD_IN;
+ else
+ saved_dest_udp <= saved_dest_udp;
+ end if;
+ end if;
+end process THE_SAVED_DEST_UDP_PROC;
-- saves the destination mac address of the incoming frame
-SAVED_DEST_MAC_PROC : process(RX_MAC_CLK)
+THE_SAVED_DEST_MAC_PROC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- if (filter_current_state = CLEANUP) then
- saved_dest_mac <= (others => '0');
- elsif (filter_current_state = IDLE) and (MAC_RX_EN_IN = '1') and (new_frame = '0') then
- saved_dest_mac(7 downto 0) <= MAC_RXD_IN;
- elsif (filter_current_state = IDLE) and (new_frame = '1') and (ALLOW_RX_IN = '1') then
- saved_dest_mac(15 downto 8) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_DEST) and (remove_ctr = x"FF") then
- saved_dest_mac(23 downto 16) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_DEST) and (remove_ctr = x"00") then
- saved_dest_mac(31 downto 24) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_DEST) and (remove_ctr = x"01") then
- saved_dest_mac(39 downto 32) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_DEST) and (remove_ctr = x"02") then
- saved_dest_mac(47 downto 40) <= MAC_RXD_IN;
- else
- saved_dest_mac <= saved_dest_mac;
- end if;
- end if;
-end process SAVED_DEST_MAC_PROC;
+ if( rising_edge(CLK) ) then
+ if ( filter_current_state = CLEANUP ) then
+ saved_dest_mac <= (others => '0');
+ elsif( (filter_current_state = IDLE) and (MAC_RX_EN_IN = '1') and (new_frame = '0') ) then
+ saved_dest_mac(7 downto 0) <= MAC_RXD_IN;
+ elsif( (filter_current_state = IDLE) and (new_frame = '1') and (ALLOW_RX_IN = '1') ) then
+ saved_dest_mac(15 downto 8) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_DEST) and (remove_ctr = x"FF") ) then
+ saved_dest_mac(23 downto 16) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_DEST) and (remove_ctr = x"00") ) then
+ saved_dest_mac(31 downto 24) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_DEST) and (remove_ctr = x"01") ) then
+ saved_dest_mac(39 downto 32) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_DEST) and (remove_ctr = x"02") ) then
+ saved_dest_mac(47 downto 40) <= MAC_RXD_IN;
+ else
+ saved_dest_mac <= saved_dest_mac;
+ end if;
+ end if;
+end process THE_SAVED_DEST_MAC_PROC;
-- saves the source mac address of the incoming frame
-SAVED_SRC_MAC_PROC : process(RX_MAC_CLK)
+THE_SAVED_SRC_MAC_PROC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- if (filter_current_state = CLEANUP) then
- saved_src_mac <= (others => '0');
- elsif (filter_current_state = REMOVE_DEST) and (remove_ctr = x"03") then
- saved_src_mac(7 downto 0) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_SRC) and (remove_ctr = x"04") then
- saved_src_mac(15 downto 8) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_SRC) and (remove_ctr = x"05") then
- saved_src_mac(23 downto 16) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_SRC) and (remove_ctr = x"06") then
- saved_src_mac(31 downto 24) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_SRC) and (remove_ctr = x"07") then
- saved_src_mac(39 downto 32) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_SRC) and (remove_ctr = x"08") then
- saved_src_mac(47 downto 40) <= MAC_RXD_IN;
- else
- saved_src_mac <= saved_src_mac;
- end if;
- end if;
-end process SAVED_SRC_MAC_PROC;
+ if( rising_edge(CLK) ) then
+ if ( filter_current_state = CLEANUP ) then
+ saved_src_mac <= (others => '0');
+ elsif( (filter_current_state = REMOVE_DEST) and (remove_ctr = x"03") )then
+ saved_src_mac(7 downto 0) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_SRC) and (remove_ctr = x"04") ) then
+ saved_src_mac(15 downto 8) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_SRC) and (remove_ctr = x"05") ) then
+ saved_src_mac(23 downto 16) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_SRC) and (remove_ctr = x"06") ) then
+ saved_src_mac(31 downto 24) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_SRC) and (remove_ctr = x"07") ) then
+ saved_src_mac(39 downto 32) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_SRC) and (remove_ctr = x"08") ) then
+ saved_src_mac(47 downto 40) <= MAC_RXD_IN;
+ else
+ saved_src_mac <= saved_src_mac;
+ end if;
+ end if;
+end process THE_SAVED_SRC_MAC_PROC;
-- saves the frame type of the incoming frame for futher check
-SAVED_FRAME_TYPE_PROC : process(RX_MAC_CLK)
+THE_SAVED_FRAME_TYPE_PROC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- if (filter_current_state = CLEANUP) then
- saved_frame_type <= (others => '0');
- elsif (filter_current_state = REMOVE_SRC) and (remove_ctr = x"09") then
- saved_frame_type(15 downto 8) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_TYPE) and (remove_ctr = x"0a") then
- saved_frame_type(7 downto 0) <= MAC_RXD_IN;
- -- two more cases for VLAN tagged frame
- elsif (filter_current_state = REMOVE_VID) and (remove_ctr = x"0d") then
- saved_frame_type(15 downto 8) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_VTYPE) and (remove_ctr = x"0e") then
- saved_frame_type(7 downto 0) <= MAC_RXD_IN;
- else
- saved_frame_type <= saved_frame_type;
- end if;
- end if;
-end process SAVED_FRAME_TYPE_PROC;
+ if( rising_edge(CLK) ) then
+ if ( filter_current_state = CLEANUP ) then
+ saved_frame_type <= (others => '0');
+ elsif( (filter_current_state = REMOVE_SRC) and (remove_ctr = x"09") ) then
+ saved_frame_type(15 downto 8) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_TYPE) and (remove_ctr = x"0a") ) then
+ saved_frame_type(7 downto 0) <= MAC_RXD_IN;
+ -- two more cases for VLAN tagged frame
+ elsif( (filter_current_state = REMOVE_VID) and (remove_ctr = x"0d") ) then
+ saved_frame_type(15 downto 8) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_VTYPE) and (remove_ctr = x"0e") ) then
+ saved_frame_type(7 downto 0) <= MAC_RXD_IN;
+ else
+ saved_frame_type <= saved_frame_type;
+ end if;
+ end if;
+end process THE_SAVED_FRAME_TYPE_PROC;
-- saves VLAN id when tagged frame spotted
-SAVED_VID_PROC : process(RX_MAC_CLK)
+THE_SAVED_VID_PROC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- if (filter_current_state = CLEANUP) then
- saved_vid <= (others => '0');
- elsif (filter_current_state = REMOVE_TYPE and remove_ctr = x"0b" and saved_frame_type = x"8100") then
- saved_vid(15 downto 8) <= MAC_RXD_IN;
- elsif (filter_current_state = REMOVE_VID and remove_ctr = x"0c") then
- saved_vid(7 downto 0) <= MAC_RXD_IN;
- else
- saved_vid <= saved_vid;
- end if;
- end if;
-end process SAVED_VID_PROC;
-
-type_validator : trb_net16_gbe_type_validator
+ if( rising_edge(CLK) ) then
+ if ( filter_current_state = CLEANUP ) then
+ saved_vid <= (others => '0');
+ elsif( (filter_current_state = REMOVE_TYPE) and (remove_ctr = x"0b") and (saved_frame_type = x"8100") ) then
+ saved_vid(15 downto 8) <= MAC_RXD_IN;
+ elsif( (filter_current_state = REMOVE_VID) and (remove_ctr = x"0c") ) then
+ saved_vid(7 downto 0) <= MAC_RXD_IN;
+ else
+ saved_vid <= saved_vid;
+ end if;
+ end if;
+end process THE_SAVED_VID_PROC;
+
+THE_TYPE_VALIDATOR: trb_net16_gbe_type_validator
port map(
- CLK => RX_MAC_CLK,
- RESET => RESET,
- FRAME_TYPE_IN => saved_frame_type,
- SAVED_VLAN_ID_IN => saved_vid,
- ALLOWED_TYPES_IN => FR_ALLOWED_TYPES_IN,
- VLAN_ID_IN => FR_VLAN_ID_IN,
-
- -- IP level
- IP_PROTOCOLS_IN => saved_proto,
- ALLOWED_IP_PROTOCOLS_IN => FR_ALLOWED_IP_IN,
-
- -- UDP level
- UDP_PROTOCOL_IN => saved_dest_udp,
- ALLOWED_UDP_PROTOCOLS_IN => FR_ALLOWED_UDP_IN,
-
- VALID_OUT => frame_type_valid
+ CLK => CLK,
+ RESET => RESET,
+ FRAME_TYPE_IN => saved_frame_type,
+ SAVED_VLAN_ID_IN => saved_vid,
+ ALLOWED_TYPES_IN => FR_ALLOWED_TYPES_IN,
+ VLAN_ID_IN => FR_VLAN_ID_IN,
+ -- IP level
+ IP_PROTOCOLS_IN => saved_proto,
+ ALLOWED_IP_PROTOCOLS_IN => FR_ALLOWED_IP_IN,
+ -- UDP level
+ UDP_PROTOCOL_IN => saved_dest_udp,
+ ALLOWED_UDP_PROTOCOLS_IN => FR_ALLOWED_UDP_IN,
+ --
+ VALID_OUT => frame_type_valid
);
-receive_fifo : fifo_4096x9
+THE_RECEIVE_FIFO: fifo_4096x9
port map(
--- Data(7 downto 0) => MAC_RXD_IN,
--- Data(8) => MAC_RX_EOF_IN,
- Data => rx_data,
- WrClock => RX_MAC_CLK,
- RdClock => CLK,
- WrEn => fifo_wr_en,
- RdEn => FR_RD_EN_IN,
- Reset => RESET,
- RPReset => RESET,
- Q => fr_q, --FR_Q_OUT,
- Empty => rec_fifo_empty,
- Full => rec_fifo_full
+ Data => rx_data,
+ WrClock => CLK,
+ RdClock => CLK,
+ WrEn => fifo_wr_en,
+ RdEn => FR_RD_EN_IN,
+ Reset => RESET,
+ RPReset => RESET,
+ Q => fr_q,
+ Empty => rec_fifo_empty,
+ Full => rec_fifo_full
);
-
-- killer ping
-process(RX_MAC_CLK)
+THE_KILLER_PING_PROC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
-
- if (filter_current_state = SAVE_FRAME and saved_proto = x"01" and saved_frame_type = x"0800" and rx_bytes_ctr = x"001A" and rx_data(7 downto 0) = MY_TRBNET_ADDRESS_IN(7 downto 0) and MAC_RXD_IN = MY_TRBNET_ADDRESS_IN(15 downto 8)) then
+ if( rising_edge(CLK) ) then
+ if( (filter_current_state = SAVE_FRAME) and (saved_proto = x"01") and (saved_frame_type = x"0800") and
+ (rx_bytes_ctr = x"001A") and (rx_data(7 downto 0) = MY_TRBNET_ADDRESS_IN(7 downto 0)) and
+ (MAC_RXD_IN = MY_TRBNET_ADDRESS_IN(15 downto 8)) ) then
ISSUE_REBOOT_OUT <= '1';
else
ISSUE_REBOOT_OUT <= '0';
end if;
-
end if;
end process;
-
-
--- BUG HERE, probably more lost bytes in the fifo in other conditions
---fifo_wr_en <= '1' when (MAC_RX_EN_IN = '1') and ((filter_current_state = SAVE_FRAME) or
--- --( (filter_current_state = REMOVE_TYPE and remove_ctr = x"b" and saved_frame_type /= x"8100" and saved_frame_type /= x"0800") or
--- ((filter_current_state = REMOVE_VTYPE and remove_ctr = x"f") or
--- (filter_current_state = DECIDE and frame_type_valid = '1')))
--- else '0';
-
-RX_FIFO_SYNC : process(RX_MAC_CLK)
+THE_RX_FIFO_SYNC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
-
- rx_data(8) <= MAC_RX_EOF_IN;
- rx_data(7 downto 0) <= MAC_RXD_IN;
-
- if (MAC_RX_EN_IN = '1') then
- if (filter_current_state = SAVE_FRAME) then
- fifo_wr_en <= '1';
- elsif (filter_current_state = REMOVE_VTYPE and remove_ctr = x"f") then
- fifo_wr_en <= '1';
- elsif (filter_current_state = DECIDE and frame_type_valid = '1') then
- fifo_wr_en <= '1';
- else
- fifo_wr_en <= '0';
- end if;
- else
- fifo_wr_en <= '0';
- end if;
-
- MAC_RX_FIFO_FULL_OUT <= rec_fifo_full;
- end if;
-end process RX_FIFO_SYNC;
-
-
-
-sizes_fifo : fifo_512x32
+ if rising_edge(CLK) then
+
+ rx_data(8) <= MAC_RX_EOF_IN;
+ rx_data(7 downto 0) <= MAC_RXD_IN;
+
+ if( MAC_RX_EN_IN = '1' ) then
+ if ( filter_current_state = SAVE_FRAME ) then
+ fifo_wr_en <= '1';
+ elsif( (filter_current_state = REMOVE_VTYPE) and (remove_ctr = x"f") ) then
+ fifo_wr_en <= '1';
+ elsif( (filter_current_state = DECIDE) and (frame_type_valid = '1') ) then
+ fifo_wr_en <= '1';
+ else
+ fifo_wr_en <= '0';
+ end if;
+ else
+ fifo_wr_en <= '0';
+ end if;
+
+ MAC_RX_FIFO_FULL_OUT <= rec_fifo_full;
+ end if;
+end process THE_RX_FIFO_SYNC;
+
+THE_SIZES_FIFO: fifo_512x32
port map(
- Data(15 downto 0) => rx_bytes_ctr,
- Data(31 downto 16) => saved_frame_type,
- WrClock => RX_MAC_CLK,
- RdClock => CLK,
- WrEn => frame_valid_q,
- RdEn => FR_GET_FRAME_IN,
- Reset => RESET,
- RPReset => RESET,
- Q(15 downto 0) => fr_frame_size, --FR_FRAME_SIZE_OUT,
- Q(31 downto 16) => fr_frame_proto, --FR_FRAME_PROTO_OUT,
- Empty => sizes_fifo_empty,
- Full => sizes_fifo_full
+ Data(15 downto 0) => rx_bytes_ctr,
+ Data(31 downto 16) => saved_frame_type,
+ WrClock => CLK,
+ RdClock => CLK,
+ WrEn => frame_valid_q,
+ RdEn => FR_GET_FRAME_IN,
+ Reset => RESET,
+ RPReset => RESET,
+ Q(15 downto 0) => fr_frame_size,
+ Q(31 downto 16) => fr_frame_proto,
+ Empty => sizes_fifo_empty,
+ Full => sizes_fifo_full
);
-macs_fifo : fifo_512x72
+THE_MACS_FIFO: fifo_512x72
port map(
- Data(47 downto 0) => saved_src_mac,
- Data(63 downto 48) => saved_src_udp,
- Data(71 downto 64) => (others => '0'),
- WrClock => RX_MAC_CLK,
- RdClock => CLK,
- WrEn => frame_valid_q,
- RdEn => FR_GET_FRAME_IN,
- Reset => RESET,
- RPReset => RESET,
- Q(47 downto 0) => fr_src_mac, --FR_SRC_MAC_ADDRESS_OUT,
- Q(63 downto 48) => fr_src_udp, --FR_SRC_UDP_PORT_OUT,
- Q(71 downto 64) => dump2,
- Empty => open,
- Full => open
+ Data(47 downto 0) => saved_src_mac,
+ Data(63 downto 48) => saved_src_udp,
+ Data(71 downto 64) => (others => '0'),
+ WrClock => CLK,
+ RdClock => CLK,
+ WrEn => frame_valid_q,
+ RdEn => FR_GET_FRAME_IN,
+ Reset => RESET,
+ RPReset => RESET,
+ Q(47 downto 0) => fr_src_mac,
+ Q(63 downto 48) => fr_src_udp,
+ Q(71 downto 64) => open,
+ Empty => open,
+ Full => open
);
-macd_fifo : fifo_512x72
+THE_MACD_FIFO: fifo_512x72
port map(
- Data(47 downto 0) => saved_dest_mac,
- Data(63 downto 48) => saved_dest_udp,
- Data(71 downto 64) => (others => '0'),
- WrClock => RX_MAC_CLK,
- RdClock => CLK,
- WrEn => frame_valid_q,
- RdEn => FR_GET_FRAME_IN,
- Reset => RESET,
- RPReset => RESET,
- Q(47 downto 0) => fr_dest_mac, --FR_DEST_MAC_ADDRESS_OUT,
- Q(63 downto 48) => fr_dest_udp, --FR_DEST_UDP_PORT_OUT,
- Q(71 downto 64) => dump,
- Empty => open,
- Full => open
+ Data(47 downto 0) => saved_dest_mac,
+ Data(63 downto 48) => saved_dest_udp,
+ Data(71 downto 64) => (others => '0'),
+ WrClock => CLK,
+ RdClock => CLK,
+ WrEn => frame_valid_q,
+ RdEn => FR_GET_FRAME_IN,
+ Reset => RESET,
+ RPReset => RESET,
+ Q(47 downto 0) => fr_dest_mac,
+ Q(63 downto 48) => fr_dest_udp,
+ Q(71 downto 64) => open,
+ Empty => open,
+ Full => open
);
-ip_fifo : fifo_512x72
+THE_IP_FIFO: fifo_512x72
port map(
- Data(31 downto 0) => saved_src_ip,
- Data(63 downto 32) => saved_dest_ip,
- Data(71 downto 64) => saved_proto,
- WrClock => RX_MAC_CLK,
- RdClock => CLK,
- WrEn => frame_valid_q,
- RdEn => FR_GET_FRAME_IN,
- Reset => RESET,
- RPReset => RESET,
- Q(31 downto 0) => fr_src_ip, --FR_SRC_IP_ADDRESS_OUT,
- Q(63 downto 32) => fr_dest_ip, --FR_DEST_IP_ADDRESS_OUT,
- Q(71 downto 64) => fr_ip_proto, --FR_IP_PROTOCOL_OUT,
- Empty => open,
- Full => open
+ Data(31 downto 0) => saved_src_ip,
+ Data(63 downto 32) => saved_dest_ip,
+ Data(71 downto 64) => saved_proto,
+ WrClock => CLK,
+ RdClock => CLK,
+ WrEn => frame_valid_q,
+ RdEn => FR_GET_FRAME_IN,
+ Reset => RESET,
+ RPReset => RESET,
+ Q(31 downto 0) => fr_src_ip,
+ Q(63 downto 32) => fr_dest_ip,
+ Q(71 downto 64) => fr_ip_proto,
+ Empty => open,
+ Full => open
);
-process(CLK)
+THE_SYNC_PROC: process( CLK )
begin
- if rising_edge(CLK) then
- FR_SRC_IP_ADDRESS_OUT <= fr_src_ip;
- FR_DEST_IP_ADDRESS_OUT <= fr_dest_ip;
- FR_IP_PROTOCOL_OUT <= fr_ip_proto;
- FR_DEST_UDP_PORT_OUT <= fr_dest_udp;
- FR_DEST_MAC_ADDRESS_OUT <= fr_dest_mac;
- FR_SRC_MAC_ADDRESS_OUT <= fr_src_mac;
- FR_SRC_UDP_PORT_OUT <= fr_src_udp;
- FR_FRAME_PROTO_OUT <= fr_frame_proto;
- FR_FRAME_SIZE_OUT <= fr_frame_size;
- FR_Q_OUT <= fr_q;
- end if;
-end process;
+ if( rising_edge(CLK) ) then
+ FR_SRC_IP_ADDRESS_OUT <= fr_src_ip;
+ FR_DEST_IP_ADDRESS_OUT <= fr_dest_ip;
+ FR_IP_PROTOCOL_OUT <= fr_ip_proto;
+ FR_DEST_UDP_PORT_OUT <= fr_dest_udp;
+ FR_DEST_MAC_ADDRESS_OUT <= fr_dest_mac;
+ FR_SRC_MAC_ADDRESS_OUT <= fr_src_mac;
+ FR_SRC_UDP_PORT_OUT <= fr_src_udp;
+ FR_FRAME_PROTO_OUT <= fr_frame_proto;
+ FR_FRAME_SIZE_OUT <= fr_frame_size;
+ FR_Q_OUT <= fr_q;
+ --
+ delayed_frame_valid <= MAC_RX_EOF_IN;
+ delayed_frame_valid_q <= delayed_frame_valid;
+ end if;
+end process THE_SYNC_PROC;
-FRAME_VALID_PROC : process(RX_MAC_CLK)
+THE_FRAME_VALID_PROC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- if (MAC_RX_EOF_IN = '1' and ALLOW_RX_IN = '1' and frame_type_valid = '1') then
- frame_valid_q <= '1';
- else
- frame_valid_q <= '0';
- end if;
- end if;
-end process FRAME_VALID_PROC;
-
-RX_BYTES_CTR_PROC : process(RX_MAC_CLK)
+ if( rising_edge(CLK) ) then
+ if( (MAC_RX_EOF_IN = '1') and (ALLOW_RX_IN = '1') and (frame_type_valid = '1') ) then
+ frame_valid_q <= '1';
+ else
+ frame_valid_q <= '0';
+ end if;
+ end if;
+end process THE_FRAME_VALID_PROC;
+
+THE_RX_BYTES_CTR_PROC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- if (RESET = '1') or (delayed_frame_valid_q = '1') then
+ if( rising_edge(CLK) ) then
+ if ( (RESET = '1') or (delayed_frame_valid_q = '1') ) then
rx_bytes_ctr <= x"0001";
- elsif (fifo_wr_en = '1') then
+ elsif( fifo_wr_en = '1' ) then
rx_bytes_ctr <= rx_bytes_ctr + x"1";
end if;
end if;
-end process;
+end process THE_RX_BYTES_CTR_PROC;
-ERROR_FRAMES_CTR_PROC : process(RX_MAC_CLK)
+THE_ERROR_FRAMES_CTR_PROC: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- if (RESET = '1') then
- error_frames_ctr <= (others => '0');
- elsif (MAC_RX_ER_IN = '1') then
- error_frames_ctr <= error_frames_ctr + x"1";
- end if;
- end if;
-end process ERROR_FRAMES_CTR_PROC;
+ if( rising_edge(CLK) ) then
+ if ( RESET = '1' ) then
+ error_frames_ctr <= (others => '0');
+ elsif( MAC_RX_ER_IN = '1' ) then
+ error_frames_ctr <= error_frames_ctr + x"1";
+ end if;
+ end if;
+end process THE_ERROR_FRAMES_CTR_PROC;
+-- not needed anymore?
+FR_FRAME_VALID_OUT <= frame_valid_q when rising_edge(CLK);
-SYNC_PROC : process(RX_MAC_CLK)
+THE_RECEIVED_FRAMES_CTR: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- delayed_frame_valid <= MAC_RX_EOF_IN;
- delayed_frame_valid_q <= delayed_frame_valid;
+ if( rising_edge(CLK) ) then
+ if ( RESET = '1' ) then
+ dbg_rec_frames <= (others => '0');
+ elsif( MAC_RX_EOF_IN = '1' ) then
+ dbg_rec_frames <= dbg_rec_frames + x"1";
+ end if;
end if;
-end process SYNC_PROC;
-
---*****************
--- synchronization between 125MHz receive clock and 100MHz system clock
-FRAME_VALID_SYNC : pulse_sync
-port map(
- CLK_A_IN => RX_MAC_CLK,
- RESET_A_IN => RESET,
- PULSE_A_IN => frame_valid_q,
- CLK_B_IN => CLK,
- RESET_B_IN => RESET,
- PULSE_B_OUT => FR_FRAME_VALID_OUT
-);
+end process THE_RECEIVED_FRAMES_CTR;
-
--- ****
--- debug counters, to be removed later
-RECEIVED_FRAMES_CTR : process(RX_MAC_CLK)
-begin
- if rising_edge(RX_MAC_CLK) then
- if (RESET = '1') then
- dbg_rec_frames <= (others => '0');
- elsif (MAC_RX_EOF_IN = '1') then
- dbg_rec_frames <= dbg_rec_frames + x"1";
- end if;
- end if;
-end process RECEIVED_FRAMES_CTR;
-
-DROPPED_FRAMES_CTR : process(RX_MAC_CLK)
+THE_DROPPED_FRAMES_CTR: process( CLK )
begin
- if rising_edge(RX_MAC_CLK) then
- if (RESET = '1') then
- dbg_drp_frames <= (others => '0');
- elsif (filter_current_state = DECIDE and frame_type_valid = '0') then
- dbg_drp_frames <= dbg_drp_frames + x"1";
- end if;
- end if;
-end process DROPPED_FRAMES_CTR;
-
-sync1 : signal_sync
-generic map (
- WIDTH => 32,
- DEPTH => 2
-)
-port map (
- RESET => RESET,
- CLK0 => CLK,
- CLK1 => CLK,
- D_IN => dbg_drp_frames,
- D_OUT => MONITOR_DROPPED_OUT
-);
+ if( rising_edge(CLK) ) then
+ if ( RESET = '1' ) then
+ dbg_drp_frames <= (others => '0');
+ elsif( (filter_current_state = DECIDE) and (frame_type_valid = '0') ) then
+ dbg_drp_frames <= dbg_drp_frames + x"1";
+ end if;
+ end if;
+end process THE_DROPPED_FRAMES_CTR;
-sync3 : signal_sync
-generic map (
- WIDTH => 32,
- DEPTH => 2
-)
-port map (
- RESET => RESET,
- CLK0 => CLK,
- CLK1 => CLK,
- D_IN => dbg_rec_frames,
- D_OUT => MONITOR_RX_FRAMES_OUT
-);
+MONITOR_DROPPED_OUT <= std_logic_vector(dbg_drp_frames);
+MONITOR_RX_FRAMES_OUT <= std_logic_vector(dbg_rec_frames);
+MONITOR_RX_BYTES_OUT <= std_logic_vector(mon_rec_bytes);
-sync4 : signal_sync
-generic map (
- WIDTH => 32,
- DEPTH => 2
-)
-port map (
- RESET => RESET,
- CLK0 => CLK,
- CLK1 => CLK,
- D_IN => mon_rec_bytes,
- D_OUT => MONITOR_RX_BYTES_OUT
-);
-process(RX_MAC_CLK)
+THE_MON_REC_BYTES_PROC: process(CLK)
begin
- if rising_edge(RX_MAC_CLK) then
- if (RESET = '1') then
- mon_rec_bytes <= (others => '0');
- elsif (fifo_wr_en = '1') then
- mon_rec_bytes <= mon_rec_bytes + x"1";
- else
- mon_rec_bytes <= mon_rec_bytes;
- end if;
- end if;
+ if( rising_edge(CLK) ) then
+ if ( RESET = '1' ) then
+ mon_rec_bytes <= (others => '0');
+ elsif( fifo_wr_en = '1' ) then
+ mon_rec_bytes <= mon_rec_bytes + x"1";
+ else
+ mon_rec_bytes <= mon_rec_bytes;
+ end if;
+ end if;
end process;
--- end of debug counters
--- ****
-
end trb_net16_gbe_frame_receiver;
jspc29 / trbnet.git / commitdiff