| Line 53... |
Line 53... |
use work.rio_common.all;
|
use work.rio_common.all;
|
|
|
|
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
-- Entity for RioPacketBuffer.
|
-- Entity for RioPacketBuffer.
|
|
--
|
|
-- Generic variables
|
|
-- -----------------
|
|
-- SIZE_ADDRESS_WIDTH - The number of frames in powers of two.
|
|
-- CONTENT_ADDRESS_WIDTH - The total number of entries in the memory that can
|
|
-- be used to store packet data.
|
|
-- CONTENT_WIDTH - The width of the data to store as packet content in the memory.
|
|
-- MAX_PACKET_SIZE - The number of entries that must be available for a new
|
|
-- complete full sized packet to be received. This option is present to ensure
|
|
-- that it is always possible to move a packet to the storage without being
|
|
-- surprised that the storage is suddenly empty.
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
entity RioPacketBuffer is
|
entity RioPacketBuffer is
|
generic(
|
generic(
|
SIZE_ADDRESS_WIDTH : natural := 6;
|
SIZE_ADDRESS_WIDTH : natural := 6;
|
CONTENT_ADDRESS_WIDTH : natural := 8);
|
CONTENT_ADDRESS_WIDTH : natural := 8;
|
|
CONTENT_WIDTH : natural := 32;
|
|
MAX_PACKET_SIZE : natural := 69);
|
port(
|
port(
|
clk : in std_logic;
|
clk : in std_logic;
|
areset_n : in std_logic;
|
areset_n : in std_logic;
|
|
|
inboundWriteFrameFull_o : out std_logic;
|
inboundWriteFrameFull_o : out std_logic;
|
inboundWriteFrame_i : in std_logic;
|
inboundWriteFrame_i : in std_logic;
|
inboundWriteFrameAbort_i : in std_logic;
|
inboundWriteFrameAbort_i : in std_logic;
|
inboundWriteContent_i : in std_logic;
|
inboundWriteContent_i : in std_logic;
|
inboundWriteContentData_i : in std_logic_vector(31 downto 0);
|
inboundWriteContentData_i : in std_logic_vector(CONTENT_WIDTH-1 downto 0);
|
inboundReadFrameEmpty_o : out std_logic;
|
inboundReadFrameEmpty_o : out std_logic;
|
inboundReadFrame_i : in std_logic;
|
inboundReadFrame_i : in std_logic;
|
inboundReadFrameRestart_i : in std_logic;
|
inboundReadFrameRestart_i : in std_logic;
|
inboundReadFrameAborted_o : out std_logic;
|
inboundReadFrameAborted_o : out std_logic;
|
|
inboundReadFrameSize_o : out std_logic_vector(CONTENT_ADDRESS_WIDTH-1 downto 0);
|
inboundReadContentEmpty_o : out std_logic;
|
inboundReadContentEmpty_o : out std_logic;
|
inboundReadContent_i : in std_logic;
|
inboundReadContent_i : in std_logic;
|
inboundReadContentEnd_o : out std_logic;
|
inboundReadContentEnd_o : out std_logic;
|
inboundReadContentData_o : out std_logic_vector(31 downto 0);
|
inboundReadContentData_o : out std_logic_vector(CONTENT_WIDTH-1 downto 0);
|
|
|
outboundWriteFrameFull_o : out std_logic;
|
outboundWriteFrameFull_o : out std_logic;
|
outboundWriteFrame_i : in std_logic;
|
outboundWriteFrame_i : in std_logic;
|
outboundWriteFrameAbort_i : in std_logic;
|
outboundWriteFrameAbort_i : in std_logic;
|
outboundWriteContent_i : in std_logic;
|
outboundWriteContent_i : in std_logic;
|
outboundWriteContentData_i : in std_logic_vector(31 downto 0);
|
outboundWriteContentData_i : in std_logic_vector(CONTENT_WIDTH-1 downto 0);
|
outboundReadFrameEmpty_o : out std_logic;
|
outboundReadFrameEmpty_o : out std_logic;
|
outboundReadFrame_i : in std_logic;
|
outboundReadFrame_i : in std_logic;
|
outboundReadFrameRestart_i : in std_logic;
|
outboundReadFrameRestart_i : in std_logic;
|
outboundReadFrameAborted_o : out std_logic;
|
outboundReadFrameAborted_o : out std_logic;
|
|
outboundReadFrameSize_o : out std_logic_vector(CONTENT_ADDRESS_WIDTH-1 downto 0);
|
outboundReadContentEmpty_o : out std_logic;
|
outboundReadContentEmpty_o : out std_logic;
|
outboundReadContent_i : in std_logic;
|
outboundReadContent_i : in std_logic;
|
outboundReadContentEnd_o : out std_logic;
|
outboundReadContentEnd_o : out std_logic;
|
outboundReadContentData_o : out std_logic_vector(31 downto 0));
|
outboundReadContentData_o : out std_logic_vector(CONTENT_WIDTH-1 downto 0));
|
end entity;
|
end entity;
|
|
|
|
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
-- Architecture for RioPacketBuffer.
|
-- Architecture for RioPacketBuffer.
|
| Line 100... |
Line 115... |
architecture RioPacketBufferImpl of RioPacketBuffer is
|
architecture RioPacketBufferImpl of RioPacketBuffer is
|
|
|
component PacketBufferContinous is
|
component PacketBufferContinous is
|
generic(
|
generic(
|
SIZE_ADDRESS_WIDTH : natural;
|
SIZE_ADDRESS_WIDTH : natural;
|
CONTENT_ADDRESS_WIDTH : natural);
|
CONTENT_ADDRESS_WIDTH : natural;
|
|
CONTENT_WIDTH : natural;
|
|
MAX_PACKET_SIZE : natural);
|
port(
|
port(
|
clk : in std_logic;
|
clk : in std_logic;
|
areset_n : in std_logic;
|
areset_n : in std_logic;
|
|
|
writeFrameFull_o : out std_logic;
|
writeFrameFull_o : out std_logic;
|
writeFrame_i : in std_logic;
|
writeFrame_i : in std_logic;
|
writeFrameAbort_i : in std_logic;
|
writeFrameAbort_i : in std_logic;
|
writeContent_i : in std_logic;
|
writeContent_i : in std_logic;
|
writeContentData_i : in std_logic_vector(31 downto 0);
|
writeContentData_i : in std_logic_vector(CONTENT_WIDTH-1 downto 0);
|
|
|
readFrameEmpty_o : out std_logic;
|
readFrameEmpty_o : out std_logic;
|
readFrame_i : in std_logic;
|
readFrame_i : in std_logic;
|
readFrameRestart_i : in std_logic;
|
readFrameRestart_i : in std_logic;
|
readFrameAborted_o : out std_logic;
|
readFrameAborted_o : out std_logic;
|
|
readFrameSize_o : out std_logic_vector(CONTENT_ADDRESS_WIDTH-1 downto 0);
|
readContentEmpty_o : out std_logic;
|
readContentEmpty_o : out std_logic;
|
readContent_i : in std_logic;
|
readContent_i : in std_logic;
|
readContentEnd_o : out std_logic;
|
readContentEnd_o : out std_logic;
|
readContentData_o : out std_logic_vector(31 downto 0));
|
readContentData_o : out std_logic_vector(CONTENT_WIDTH-1 downto 0));
|
end component;
|
end component;
|
|
|
begin
|
begin
|
|
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
-- Outbound frame buffers.
|
-- Outbound frame buffers.
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
OutboundPacketBuffer: PacketBufferContinous
|
OutboundPacketBuffer: PacketBufferContinous
|
generic map(
|
generic map(
|
SIZE_ADDRESS_WIDTH=>SIZE_ADDRESS_WIDTH,
|
SIZE_ADDRESS_WIDTH=>SIZE_ADDRESS_WIDTH,
|
CONTENT_ADDRESS_WIDTH=>CONTENT_ADDRESS_WIDTH)
|
CONTENT_ADDRESS_WIDTH=>CONTENT_ADDRESS_WIDTH,
|
|
CONTENT_WIDTH=>CONTENT_WIDTH,
|
|
MAX_PACKET_SIZE=>MAX_PACKET_SIZE)
|
port map(
|
port map(
|
clk=>clk,
|
clk=>clk,
|
areset_n=>areset_n,
|
areset_n=>areset_n,
|
writeFrameFull_o=>outboundWriteFrameFull_o,
|
writeFrameFull_o=>outboundWriteFrameFull_o,
|
writeFrame_i=>outboundWriteFrame_i, writeFrameAbort_i=>outboundWriteFrameAbort_i,
|
writeFrame_i=>outboundWriteFrame_i, writeFrameAbort_i=>outboundWriteFrameAbort_i,
|
writeContent_i=>outboundWriteContent_i, writeContentData_i=>outboundWriteContentData_i,
|
writeContent_i=>outboundWriteContent_i, writeContentData_i=>outboundWriteContentData_i,
|
|
|
readFrameEmpty_o=>outboundReadFrameEmpty_o,
|
readFrameEmpty_o=>outboundReadFrameEmpty_o,
|
readFrame_i=>outboundReadFrame_i, readFrameRestart_i=>outboundReadFrameRestart_i,
|
readFrame_i=>outboundReadFrame_i, readFrameRestart_i=>outboundReadFrameRestart_i,
|
readFrameAborted_o=>outboundReadFrameAborted_o,
|
readFrameAborted_o=>outboundReadFrameAborted_o,
|
|
readFrameSize_o=>outboundReadFrameSize_o,
|
readContentEmpty_o=>outboundReadContentEmpty_o,
|
readContentEmpty_o=>outboundReadContentEmpty_o,
|
readContent_i=>outboundReadContent_i, readContentEnd_o=>outboundReadContentEnd_o,
|
readContent_i=>outboundReadContent_i, readContentEnd_o=>outboundReadContentEnd_o,
|
readContentData_o=>outboundReadContentData_o);
|
readContentData_o=>outboundReadContentData_o);
|
|
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
-- Inbound frame buffers.
|
-- Inbound frame buffers.
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
InboundPacketBuffer: PacketBufferContinous
|
InboundPacketBuffer: PacketBufferContinous
|
generic map(
|
generic map(
|
SIZE_ADDRESS_WIDTH=>SIZE_ADDRESS_WIDTH,
|
SIZE_ADDRESS_WIDTH=>SIZE_ADDRESS_WIDTH,
|
CONTENT_ADDRESS_WIDTH=>CONTENT_ADDRESS_WIDTH)
|
CONTENT_ADDRESS_WIDTH=>CONTENT_ADDRESS_WIDTH,
|
|
CONTENT_WIDTH=>CONTENT_WIDTH,
|
|
MAX_PACKET_SIZE=>MAX_PACKET_SIZE)
|
port map(
|
port map(
|
clk=>clk,
|
clk=>clk,
|
areset_n=>areset_n,
|
areset_n=>areset_n,
|
writeFrameFull_o=>inboundWriteFrameFull_o,
|
writeFrameFull_o=>inboundWriteFrameFull_o,
|
writeFrame_i=>inboundWriteFrame_i, writeFrameAbort_i=>inboundWriteFrameAbort_i,
|
writeFrame_i=>inboundWriteFrame_i, writeFrameAbort_i=>inboundWriteFrameAbort_i,
|
writeContent_i=>inboundWriteContent_i, writeContentData_i=>inboundWriteContentData_i,
|
writeContent_i=>inboundWriteContent_i, writeContentData_i=>inboundWriteContentData_i,
|
|
|
readFrameEmpty_o=>inboundReadFrameEmpty_o,
|
readFrameEmpty_o=>inboundReadFrameEmpty_o,
|
readFrame_i=>inboundReadFrame_i, readFrameRestart_i=>inboundReadFrameRestart_i,
|
readFrame_i=>inboundReadFrame_i, readFrameRestart_i=>inboundReadFrameRestart_i,
|
readFrameAborted_o=>inboundReadFrameAborted_o,
|
readFrameAborted_o=>inboundReadFrameAborted_o,
|
|
readFrameSize_o=>inboundReadFrameSize_o,
|
readContentEmpty_o=>inboundReadContentEmpty_o,
|
readContentEmpty_o=>inboundReadContentEmpty_o,
|
readContent_i=>inboundReadContent_i, readContentEnd_o=>inboundReadContentEnd_o,
|
readContent_i=>inboundReadContent_i, readContentEnd_o=>inboundReadContentEnd_o,
|
readContentData_o=>inboundReadContentData_o);
|
readContentData_o=>inboundReadContentData_o);
|
|
|
end architecture;
|
end architecture;
|
| Line 186... |
Line 210... |
-- Entity for RioPacketBufferWindow.
|
-- Entity for RioPacketBufferWindow.
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
entity RioPacketBufferWindow is
|
entity RioPacketBufferWindow is
|
generic(
|
generic(
|
SIZE_ADDRESS_WIDTH : natural := 6;
|
SIZE_ADDRESS_WIDTH : natural := 6;
|
CONTENT_ADDRESS_WIDTH : natural := 8);
|
CONTENT_ADDRESS_WIDTH : natural := 8;
|
|
CONTENT_WIDTH : natural := 32;
|
|
MAX_PACKET_SIZE : natural := 69);
|
port(
|
port(
|
clk : in std_logic;
|
clk : in std_logic;
|
areset_n : in std_logic;
|
areset_n : in std_logic;
|
|
|
inboundWriteFrameFull_o : out std_logic;
|
inboundWriteFrameFull_o : out std_logic;
|
inboundWriteFrame_i : in std_logic;
|
inboundWriteFrame_i : in std_logic;
|
inboundWriteFrameAbort_i : in std_logic;
|
inboundWriteFrameAbort_i : in std_logic;
|
inboundWriteContent_i : in std_logic;
|
inboundWriteContent_i : in std_logic;
|
inboundWriteContentData_i : in std_logic_vector(31 downto 0);
|
inboundWriteContentData_i : in std_logic_vector(CONTENT_WIDTH-1 downto 0);
|
inboundReadFrameEmpty_o : out std_logic;
|
inboundReadFrameEmpty_o : out std_logic;
|
inboundReadFrame_i : in std_logic;
|
inboundReadFrame_i : in std_logic;
|
inboundReadFrameRestart_i : in std_logic;
|
inboundReadFrameRestart_i : in std_logic;
|
inboundReadFrameAborted_o : out std_logic;
|
inboundReadFrameAborted_o : out std_logic;
|
inboundReadContentEmpty_o : out std_logic;
|
inboundReadContentEmpty_o : out std_logic;
|
inboundReadContent_i : in std_logic;
|
inboundReadContent_i : in std_logic;
|
inboundReadContentEnd_o : out std_logic;
|
inboundReadContentEnd_o : out std_logic;
|
inboundReadContentData_o : out std_logic_vector(31 downto 0);
|
inboundReadContentData_o : out std_logic_vector(CONTENT_WIDTH-1 downto 0);
|
|
|
outboundWriteFrameFull_o : out std_logic;
|
outboundWriteFrameFull_o : out std_logic;
|
outboundWriteFrame_i : in std_logic;
|
outboundWriteFrame_i : in std_logic;
|
outboundWriteFrameAbort_i : in std_logic;
|
outboundWriteFrameAbort_i : in std_logic;
|
outboundWriteContent_i : in std_logic;
|
outboundWriteContent_i : in std_logic;
|
outboundWriteContentData_i : in std_logic_vector(31 downto 0);
|
outboundWriteContentData_i : in std_logic_vector(CONTENT_WIDTH-1 downto 0);
|
outboundReadFrameEmpty_o : out std_logic;
|
outboundReadFrameEmpty_o : out std_logic;
|
outboundReadFrame_i : in std_logic;
|
outboundReadFrame_i : in std_logic;
|
outboundReadFrameRestart_i : in std_logic;
|
outboundReadFrameRestart_i : in std_logic;
|
outboundReadFrameAborted_o : out std_logic;
|
outboundReadFrameAborted_o : out std_logic;
|
outboundReadWindowEmpty_o : out std_logic;
|
outboundReadWindowEmpty_o : out std_logic;
|
outboundReadWindowReset_i : in std_logic;
|
outboundReadWindowReset_i : in std_logic;
|
outboundReadWindowNext_i : in std_logic;
|
outboundReadWindowNext_i : in std_logic;
|
outboundReadContentEmpty_o : out std_logic;
|
outboundReadContentEmpty_o : out std_logic;
|
outboundReadContent_i : in std_logic;
|
outboundReadContent_i : in std_logic;
|
outboundReadContentEnd_o : out std_logic;
|
outboundReadContentEnd_o : out std_logic;
|
outboundReadContentData_o : out std_logic_vector(31 downto 0));
|
outboundReadContentData_o : out std_logic_vector(CONTENT_WIDTH-1 downto 0));
|
end entity;
|
end entity;
|
|
|
|
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
-- Architecture for RioPacketBufferWindow.
|
-- Architecture for RioPacketBufferWindow.
|
| Line 232... |
Line 258... |
architecture RioPacketBufferWindowImpl of RioPacketBufferWindow is
|
architecture RioPacketBufferWindowImpl of RioPacketBufferWindow is
|
|
|
component PacketBufferContinous is
|
component PacketBufferContinous is
|
generic(
|
generic(
|
SIZE_ADDRESS_WIDTH : natural;
|
SIZE_ADDRESS_WIDTH : natural;
|
CONTENT_ADDRESS_WIDTH : natural);
|
CONTENT_ADDRESS_WIDTH : natural;
|
|
CONTENT_WIDTH : natural;
|
|
MAX_PACKET_SIZE : natural);
|
port(
|
port(
|
clk : in std_logic;
|
clk : in std_logic;
|
areset_n : in std_logic;
|
areset_n : in std_logic;
|
|
|
writeFrameFull_o : out std_logic;
|
writeFrameFull_o : out std_logic;
|
writeFrame_i : in std_logic;
|
writeFrame_i : in std_logic;
|
writeFrameAbort_i : in std_logic;
|
writeFrameAbort_i : in std_logic;
|
writeContent_i : in std_logic;
|
writeContent_i : in std_logic;
|
writeContentData_i : in std_logic_vector(31 downto 0);
|
writeContentData_i : in std_logic_vector(CONTENT_WIDTH-1 downto 0);
|
|
|
readFrameEmpty_o : out std_logic;
|
readFrameEmpty_o : out std_logic;
|
readFrame_i : in std_logic;
|
readFrame_i : in std_logic;
|
readFrameRestart_i : in std_logic;
|
readFrameRestart_i : in std_logic;
|
readFrameAborted_o : out std_logic;
|
readFrameAborted_o : out std_logic;
|
|
readFrameSize_o : out std_logic_vector(CONTENT_ADDRESS_WIDTH-1 downto 0);
|
|
|
readContentEmpty_o : out std_logic;
|
readContentEmpty_o : out std_logic;
|
readContent_i : in std_logic;
|
readContent_i : in std_logic;
|
readContentEnd_o : out std_logic;
|
readContentEnd_o : out std_logic;
|
readContentData_o : out std_logic_vector(31 downto 0));
|
readContentData_o : out std_logic_vector(CONTENT_WIDTH-1 downto 0));
|
end component;
|
end component;
|
|
|
component PacketBufferContinousWindow is
|
component PacketBufferContinousWindow is
|
generic(
|
generic(
|
SIZE_ADDRESS_WIDTH : natural;
|
SIZE_ADDRESS_WIDTH : natural;
|
CONTENT_ADDRESS_WIDTH : natural);
|
CONTENT_ADDRESS_WIDTH : natural;
|
|
CONTENT_WIDTH : natural;
|
|
MAX_PACKET_SIZE : natural);
|
port(
|
port(
|
clk : in std_logic;
|
clk : in std_logic;
|
areset_n : in std_logic;
|
areset_n : in std_logic;
|
|
|
writeFrameFull_o : out std_logic;
|
writeFrameFull_o : out std_logic;
|
writeFrame_i : in std_logic;
|
writeFrame_i : in std_logic;
|
writeFrameAbort_i : in std_logic;
|
writeFrameAbort_i : in std_logic;
|
writeContent_i : in std_logic;
|
writeContent_i : in std_logic;
|
writeContentData_i : in std_logic_vector(31 downto 0);
|
writeContentData_i : in std_logic_vector(CONTENT_WIDTH-1 downto 0);
|
|
|
readFrameEmpty_o : out std_logic;
|
readFrameEmpty_o : out std_logic;
|
readFrame_i : in std_logic;
|
readFrame_i : in std_logic;
|
readFrameRestart_i : in std_logic;
|
readFrameRestart_i : in std_logic;
|
readFrameAborted_o : out std_logic;
|
readFrameAborted_o : out std_logic;
|
| Line 280... |
Line 311... |
readWindowNext_i : in std_logic;
|
readWindowNext_i : in std_logic;
|
|
|
readContentEmpty_o : out std_logic;
|
readContentEmpty_o : out std_logic;
|
readContent_i : in std_logic;
|
readContent_i : in std_logic;
|
readContentEnd_o : out std_logic;
|
readContentEnd_o : out std_logic;
|
readContentData_o : out std_logic_vector(31 downto 0));
|
readContentData_o : out std_logic_vector(CONTENT_WIDTH-1 downto 0));
|
end component;
|
end component;
|
|
|
begin
|
begin
|
|
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
-- Outbound frame buffers.
|
-- Outbound frame buffers.
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
OutboundPacketBuffer: PacketBufferContinousWindow
|
OutboundPacketBuffer: PacketBufferContinousWindow
|
generic map(
|
generic map(
|
SIZE_ADDRESS_WIDTH=>SIZE_ADDRESS_WIDTH,
|
SIZE_ADDRESS_WIDTH=>SIZE_ADDRESS_WIDTH,
|
CONTENT_ADDRESS_WIDTH=>CONTENT_ADDRESS_WIDTH)
|
CONTENT_ADDRESS_WIDTH=>CONTENT_ADDRESS_WIDTH,
|
|
CONTENT_WIDTH=>CONTENT_WIDTH,
|
|
MAX_PACKET_SIZE=>MAX_PACKET_SIZE)
|
port map(
|
port map(
|
clk=>clk,
|
clk=>clk,
|
areset_n=>areset_n,
|
areset_n=>areset_n,
|
writeFrameFull_o=>outboundWriteFrameFull_o,
|
writeFrameFull_o=>outboundWriteFrameFull_o,
|
writeFrame_i=>outboundWriteFrame_i, writeFrameAbort_i=>outboundWriteFrameAbort_i,
|
writeFrame_i=>outboundWriteFrame_i, writeFrameAbort_i=>outboundWriteFrameAbort_i,
|
| Line 315... |
Line 348... |
-- Inbound frame buffers.
|
-- Inbound frame buffers.
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
InboundPacketBuffer: PacketBufferContinous
|
InboundPacketBuffer: PacketBufferContinous
|
generic map(
|
generic map(
|
SIZE_ADDRESS_WIDTH=>SIZE_ADDRESS_WIDTH,
|
SIZE_ADDRESS_WIDTH=>SIZE_ADDRESS_WIDTH,
|
CONTENT_ADDRESS_WIDTH=>CONTENT_ADDRESS_WIDTH)
|
CONTENT_ADDRESS_WIDTH=>CONTENT_ADDRESS_WIDTH,
|
|
CONTENT_WIDTH=>CONTENT_WIDTH,
|
|
MAX_PACKET_SIZE=>MAX_PACKET_SIZE)
|
port map(
|
port map(
|
clk=>clk,
|
clk=>clk,
|
areset_n=>areset_n,
|
areset_n=>areset_n,
|
writeFrameFull_o=>inboundWriteFrameFull_o,
|
writeFrameFull_o=>inboundWriteFrameFull_o,
|
writeFrame_i=>inboundWriteFrame_i, writeFrameAbort_i=>inboundWriteFrameAbort_i,
|
writeFrame_i=>inboundWriteFrame_i, writeFrameAbort_i=>inboundWriteFrameAbort_i,
|
writeContent_i=>inboundWriteContent_i, writeContentData_i=>inboundWriteContentData_i,
|
writeContent_i=>inboundWriteContent_i, writeContentData_i=>inboundWriteContentData_i,
|
|
|
readFrameEmpty_o=>inboundReadFrameEmpty_o,
|
readFrameEmpty_o=>inboundReadFrameEmpty_o,
|
readFrame_i=>inboundReadFrame_i, readFrameRestart_i=>inboundReadFrameRestart_i,
|
readFrame_i=>inboundReadFrame_i, readFrameRestart_i=>inboundReadFrameRestart_i,
|
readFrameAborted_o=>inboundReadFrameAborted_o,
|
readFrameAborted_o=>inboundReadFrameAborted_o,
|
|
readFrameSize_o=>open,
|
readContentEmpty_o=>inboundReadContentEmpty_o,
|
readContentEmpty_o=>inboundReadContentEmpty_o,
|
readContent_i=>inboundReadContent_i, readContentEnd_o=>inboundReadContentEnd_o,
|
readContent_i=>inboundReadContent_i, readContentEnd_o=>inboundReadContentEnd_o,
|
readContentData_o=>inboundReadContentData_o);
|
readContentData_o=>inboundReadContentData_o);
|
|
|
end architecture;
|
end architecture;
|
| Line 353... |
Line 389... |
-- Entity for PacketBufferContinous.
|
-- Entity for PacketBufferContinous.
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
entity PacketBufferContinous is
|
entity PacketBufferContinous is
|
generic(
|
generic(
|
SIZE_ADDRESS_WIDTH : natural;
|
SIZE_ADDRESS_WIDTH : natural;
|
CONTENT_ADDRESS_WIDTH : natural);
|
CONTENT_ADDRESS_WIDTH : natural;
|
|
CONTENT_WIDTH : natural;
|
|
MAX_PACKET_SIZE : natural);
|
port(
|
port(
|
clk : in std_logic;
|
clk : in std_logic;
|
areset_n : in std_logic;
|
areset_n : in std_logic;
|
|
|
writeFrameFull_o : out std_logic;
|
writeFrameFull_o : out std_logic;
|
writeFrame_i : in std_logic;
|
writeFrame_i : in std_logic;
|
writeFrameAbort_i : in std_logic;
|
writeFrameAbort_i : in std_logic;
|
writeContent_i : in std_logic;
|
writeContent_i : in std_logic;
|
writeContentData_i : in std_logic_vector(31 downto 0);
|
writeContentData_i : in std_logic_vector(CONTENT_WIDTH-1 downto 0);
|
|
|
readFrameEmpty_o : out std_logic;
|
readFrameEmpty_o : out std_logic;
|
readFrame_i : in std_logic;
|
readFrame_i : in std_logic;
|
readFrameRestart_i : in std_logic;
|
readFrameRestart_i : in std_logic;
|
readFrameAborted_o : out std_logic;
|
readFrameAborted_o : out std_logic;
|
|
readFrameSize_o : out std_logic_vector(CONTENT_ADDRESS_WIDTH-1 downto 0);
|
|
|
readContentEmpty_o : out std_logic;
|
readContentEmpty_o : out std_logic;
|
readContent_i : in std_logic;
|
readContent_i : in std_logic;
|
readContentEnd_o : out std_logic;
|
readContentEnd_o : out std_logic;
|
readContentData_o : out std_logic_vector(31 downto 0));
|
readContentData_o : out std_logic_vector(CONTENT_WIDTH-1 downto 0));
|
end entity;
|
end entity;
|
|
|
|
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
-- Architecture for PacketBufferContinous.
|
-- Architecture for PacketBufferContinous.
|
| Line 456... |
Line 495... |
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
-- Writer logic.
|
-- Writer logic.
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
|
|
writeFrameFull_o <= '1' when ((backIndexNext = frontIndex) or
|
writeFrameFull_o <= '1' when ((backIndexNext = frontIndex) or
|
(available <= 68)) else '0';
|
(available < MAX_PACKET_SIZE)) else '0';
|
|
|
Writer: process(clk, areset_n)
|
Writer: process(clk, areset_n)
|
begin
|
begin
|
if (areset_n = '0') then
|
if (areset_n = '0') then
|
backIndex <= (others=>'0');
|
backIndex <= (others=>'0');
|
| Line 508... |
Line 547... |
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
|
|
readFrameEmpty_o <= '1' when (frontIndex = backIndex) else '0';
|
readFrameEmpty_o <= '1' when (frontIndex = backIndex) else '0';
|
readContentEmpty_o <= '1' when ((frontIndex = backIndex) and
|
readContentEmpty_o <= '1' when ((frontIndex = backIndex) and
|
(memoryWrite_p = memoryRead_p)) else '0';
|
(memoryWrite_p = memoryRead_p)) else '0';
|
|
readFrameSize_o <= std_logic_vector(readFrameEnd_p - memoryStart_p);
|
|
|
Reader: process(clk, areset_n)
|
Reader: process(clk, areset_n)
|
begin
|
begin
|
if (areset_n = '0') then
|
if (areset_n = '0') then
|
frontIndex <= (others=>'0');
|
frontIndex <= (others=>'0');
|
| Line 561... |
Line 601... |
|
|
-- Memory to keep frame content in.
|
-- Memory to keep frame content in.
|
-- REMARK: Use paritybits here as well to make sure the frame data does not
|
-- REMARK: Use paritybits here as well to make sure the frame data does not
|
-- become corrupt???
|
-- become corrupt???
|
FrameContent: MemorySimpleDualPort
|
FrameContent: MemorySimpleDualPort
|
generic map(ADDRESS_WIDTH=>CONTENT_ADDRESS_WIDTH, DATA_WIDTH=>32)
|
generic map(ADDRESS_WIDTH=>CONTENT_ADDRESS_WIDTH, DATA_WIDTH=>CONTENT_WIDTH)
|
port map(
|
port map(
|
clkA_i=>clk, enableA_i=>writeContent_i,
|
clkA_i=>clk, enableA_i=>writeContent_i,
|
addressA_i=>std_logic_vector(memoryWrite_p), dataA_i=>writeContentData_i,
|
addressA_i=>std_logic_vector(memoryWrite_p), dataA_i=>writeContentData_i,
|
clkB_i=>clk, enableB_i=>readContent_i,
|
clkB_i=>clk, enableB_i=>readContent_i,
|
addressB_i=>std_logic_vector(memoryRead_p), dataB_o=>readContentData_o);
|
addressB_i=>std_logic_vector(memoryRead_p), dataB_o=>readContentData_o);
|
| Line 590... |
Line 630... |
-- Entity for PacketBufferContinousWindow.
|
-- Entity for PacketBufferContinousWindow.
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
entity PacketBufferContinousWindow is
|
entity PacketBufferContinousWindow is
|
generic(
|
generic(
|
SIZE_ADDRESS_WIDTH : natural;
|
SIZE_ADDRESS_WIDTH : natural;
|
CONTENT_ADDRESS_WIDTH : natural);
|
CONTENT_ADDRESS_WIDTH : natural;
|
|
CONTENT_WIDTH : natural;
|
|
MAX_PACKET_SIZE : natural);
|
port(
|
port(
|
clk : in std_logic;
|
clk : in std_logic;
|
areset_n : in std_logic;
|
areset_n : in std_logic;
|
|
|
writeFrameFull_o : out std_logic;
|
writeFrameFull_o : out std_logic;
|
writeFrame_i : in std_logic;
|
writeFrame_i : in std_logic;
|
writeFrameAbort_i : in std_logic;
|
writeFrameAbort_i : in std_logic;
|
writeContent_i : in std_logic;
|
writeContent_i : in std_logic;
|
writeContentData_i : in std_logic_vector(31 downto 0);
|
writeContentData_i : in std_logic_vector(CONTENT_WIDTH-1 downto 0);
|
|
|
readFrameEmpty_o : out std_logic;
|
readFrameEmpty_o : out std_logic;
|
readFrame_i : in std_logic;
|
readFrame_i : in std_logic;
|
readFrameRestart_i : in std_logic;
|
readFrameRestart_i : in std_logic;
|
readFrameAborted_o : out std_logic;
|
readFrameAborted_o : out std_logic;
|
| Line 613... |
Line 655... |
readWindowNext_i : in std_logic;
|
readWindowNext_i : in std_logic;
|
|
|
readContentEmpty_o : out std_logic;
|
readContentEmpty_o : out std_logic;
|
readContent_i : in std_logic;
|
readContent_i : in std_logic;
|
readContentEnd_o : out std_logic;
|
readContentEnd_o : out std_logic;
|
readContentData_o : out std_logic_vector(31 downto 0));
|
readContentData_o : out std_logic_vector(CONTENT_WIDTH-1 downto 0));
|
end entity;
|
end entity;
|
|
|
|
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
-- Architecture for PacketBufferContinousWindow.
|
-- Architecture for PacketBufferContinousWindow.
|
| Line 699... |
Line 741... |
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
-- Writer logic.
|
-- Writer logic.
|
-----------------------------------------------------------------------------
|
-----------------------------------------------------------------------------
|
|
|
writeFrameFull_o <= '1' when ((backIndexNext = frontIndex) or
|
writeFrameFull_o <= '1' when ((backIndexNext = frontIndex) or
|
(available <= 68)) else '0';
|
(available < MAX_PACKET_SIZE)) else '0';
|
|
|
Writer: process(clk, areset_n)
|
Writer: process(clk, areset_n)
|
begin
|
begin
|
if (areset_n = '0') then
|
if (areset_n = '0') then
|
backIndex <= (others=>'0');
|
backIndex <= (others=>'0');
|
| Line 819... |
Line 861... |
|
|
-- Memory to keep frame content in.
|
-- Memory to keep frame content in.
|
-- REMARK: Use paritybits here as well to make sure the frame data does not
|
-- REMARK: Use paritybits here as well to make sure the frame data does not
|
-- become corrupt???
|
-- become corrupt???
|
FrameContent: MemorySimpleDualPort
|
FrameContent: MemorySimpleDualPort
|
generic map(ADDRESS_WIDTH=>CONTENT_ADDRESS_WIDTH, DATA_WIDTH=>32)
|
generic map(ADDRESS_WIDTH=>CONTENT_ADDRESS_WIDTH, DATA_WIDTH=>CONTENT_WIDTH)
|
port map(
|
port map(
|
clkA_i=>clk, enableA_i=>writeContent_i,
|
clkA_i=>clk, enableA_i=>writeContent_i,
|
addressA_i=>std_logic_vector(memoryWrite_p), dataA_i=>writeContentData_i,
|
addressA_i=>std_logic_vector(memoryWrite_p), dataA_i=>writeContentData_i,
|
clkB_i=>clk, enableB_i=>readContent_i,
|
clkB_i=>clk, enableB_i=>readContent_i,
|
addressB_i=>std_logic_vector(memoryRead_p), dataB_o=>readContentData_o);
|
addressB_i=>std_logic_vector(memoryRead_p), dataB_o=>readContentData_o);
|
