greek64/rtps-fpga
2
1
Fork 0
Code Issues Pull Requests Releases Wiki Activity

* partly revert commit ec4d44c

Browse Source 
- Re-add max_participant_addr to prevent iterating through the whole memory area unnecessarily
	- Pointer points to last occuoied participant frame
This commit is contained in:
Greek 2020-12-02 20:04:01 +01:00
parent e18c6e15ce
commit 0ae131189b
2 changed files with 121 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/Tests/testbench.pro
View File

@ -25,9 +25,9 @@ analyze Level_0/rtps_out_test1.vhd
#simulate rtps_handler_test1
#simulate rtps_handler_test2
simulate rtps_builtin_endpoint_test1
#simulate rtps_builtin_endpoint_test1
#simulate rtps_builtin_endpoint_test2
#simulate rtps_builtin_endpoint_test3
#simulate rtps_builtin_endpoint_test4
#simulate rtps_builtin_endpoint_test5
simulate rtps_builtin_endpoint_test5
#simulate rtps_out_test1

147
src/rtps_builtin_endpoint.vhd
View File

@ -264,6 +264,10 @@ architecture arch of rtps_builtin_endpoint is
signal mem_addr_base, mem_addr_base_next : unsigned(BUILTIN_BUFFER_ADDR_WIDTH-1 downto 0) := (others => '0');
-- Result Base Memory Address of Memory Operation
signal addr_res, addr_res_next : unsigned(BUILTIN_BUFFER_ADDR_WIDTH-1 downto 0) := (others => '0');
-- Help signal used to reset the MAX Participant/Endpoint Memory Pointers
signal last_addr, last_addr_next : unsigned(BUILTIN_BUFFER_ADDR_WIDTH-1 downto 0) := (others => '0');
-- Highest Participant Memory Address (Points to first Word of last occupied Participant Frame)
signal max_participant_addr, max_participant_addr_next : unsigned(BUILTIN_BUFFER_ADDR_WIDTH-1 downto 0) := (others => '0');
-- Memory Data Read and Write Signals
signal mem_read_data, mem_write_data : std_logic_vector(WORD_WIDTH-1 downto 0) := (others => '0');
-- Memory Read and Write Enable Signals
@ -280,6 +284,8 @@ architecture arch of rtps_builtin_endpoint is
signal last_seq_nr, last_seq_nr_next : SEQUENCENUMBER_TYPE := (others => (others => '0'));
-- Intermediate write enable signal.
signal wr_sig : std_logic := '0';
-- Signifies if we currently are resetting the MAX Participant/Endpoint Pointer
signal reset_max_pointer, reset_max_pointer_next : std_logic := '0';
-- Signifies if we currently are doing a Participant Stale Entry Check (Used to start Stale Checks between packet handling)
signal stale_check, stale_check_next : std_logic := '0';
-- Latch containing the GUID Prefix of the removed Participant from the memory, and the Enity ID of the last Orphan Endpoint found
@ -3038,9 +3044,12 @@ begin
mem_addr_next <= mem_addr;
addr_res_next <= addr_res;
mem_cnt_next <= mem_cnt;
last_addr_next <= last_addr;
mem_participant_data_next <= mem_participant_data;
is_heartbeat_res_next <= is_heartbeat_res;
mem_guidprefix_next <= mem_guidprefix;
max_participant_addr_next <= max_participant_addr;
reset_max_pointer_next <= reset_max_pointer;
-- DEFAULT Unregistered
mem_write_data <= (others => '0');
mem_op_done <= '0';
@ -3051,6 +3060,7 @@ begin
case (mem_stage) is
when IDLE =>
mem_op_done <= '1';
reset_max_pointer_next <= '0';
if (mem_op_start = '1') then
case(mem_opcode) is
@ -3133,7 +3143,7 @@ begin
-- No Match
if (mem_read_data /= guid(0)) then
-- Reached End of Memory, No Match
if (mem_addr_base = MAX_PARTICIPANT_ADDRESS) then
if (mem_addr_base = max_participant_addr) then
addr_res_next <= MAX_ADDRESS; --No match
-- DONE
mem_stage_next <= IDLE;
@ -3149,7 +3159,7 @@ begin
-- No Match
if (mem_read_data /= guid(1)) then
-- Reached End of Memory, No Match
if (mem_addr_base = MAX_PARTICIPANT_ADDRESS) then
if (mem_addr_base = max_participant_addr) then
addr_res_next <= MAX_ADDRESS; --No match
-- DONE
mem_stage_next <= IDLE;
@ -3165,7 +3175,7 @@ begin
-- No Match
if (mem_read_data /= guid(2)) then
-- Reached End of Memory, No Match
if (mem_addr_base = MAX_PARTICIPANT_ADDRESS) then
if (mem_addr_base = max_participant_addr) then
addr_res_next <= MAX_ADDRESS; --No match
-- DONE
mem_stage_next <= IDLE;
@ -3532,12 +3542,17 @@ begin
when 6 =>
mem_wr <= '1';
mem_write_data <= GUIDPREFIX_UNKNOWN(2);
-- DONE
mem_stage_next <= IDLE;
-- Reset MAX Participant Pointer
mem_addr_base_next <= FIRST_PARTICIPANT_ADDRESS;
mem_addr_next <= FIRST_PARTICIPANT_ADDRESS;
reset_max_pointer_next <= '1';
last_addr_next <= (others => '0');
mem_stage_next <= FIND_PARTICIPANT_SLOT;
mem_cnt_next <= 0;
when others =>
null;
end case;
-- TODO: Should I set the addr_res?
when FIND_PARTICIPANT_SLOT =>
mem_rd <= '1';
mem_addr_next <= mem_addr + 1;
@ -3554,12 +3569,30 @@ begin
when 1 =>
-- Slot Occupied
if (mem_read_data /= GUIDPREFIX_UNKNOWN(0)) then
if (mem_addr_base = MAX_PARTICIPANT_ADDRESS) then
report "Memory Full, ignoring Participant Data" severity WARNING;
addr_res_next <= MAX_ADDRESS; --No match
-- DONE
mem_stage_next <= IDLE;
if (mem_addr_base = max_participant_addr) then
-- We are in the middle of resetting the MAX Participant Pointer
if (reset_max_pointer = '1') then
-- No Change
mem_stage_next <= IDLE;
-- MEMORY FULL
elsif (max_participant_addr = MAX_PARTICIPANT_ADDRESS) then
report "Memory Full, Ignoring Participant Data" severity NOTE;
-- Ignore Insertion
mem_stage_next <= IDLE;
addr_res_next <= MAX_ADDRESS;
else
-- Extend Participant Memory Area
-- NOTE: "max_participant_addr" points to the first address of last participant frame
max_participant_addr_next <= tmp;
-- Populate Participant Slot
mem_stage_next <= INSERT_PARTICIPANT;
mem_addr_next <= tmp;
addr_res_next <= tmp;
mem_cnt_next <= 0;
end if;
else
-- Latch last occupied Participant Slot
last_addr_next <= mem_addr_base;
-- Continue Search
mem_addr_next <= tmp;
mem_addr_base_next <= tmp;
@ -3570,12 +3603,30 @@ begin
when 2 =>
-- Slot Occupied
if (mem_read_data /= GUIDPREFIX_UNKNOWN(1)) then
if (mem_addr_base = MAX_PARTICIPANT_ADDRESS) then
report "Memory Full, ignoring Participant Data" severity WARNING;
addr_res_next <= MAX_ADDRESS; --No match
-- DONE
mem_stage_next <= IDLE;
if (mem_addr_base = max_participant_addr) then
-- We are in the middle of resetting the MAX Participant Pointer
if (reset_max_pointer = '1') then
-- No Change
mem_stage_next <= IDLE;
-- MEMORY FULL
elsif (max_participant_addr = MAX_PARTICIPANT_ADDRESS) then
report "Memory Full, Ignoring Participant Data" severity NOTE;
-- Ignore Insertion
mem_stage_next <= IDLE;
addr_res_next <= MAX_ADDRESS;
else
-- Extend Participant Memory Area
-- NOTE: "max_participant_addr" points to the first address of last participant frame
max_participant_addr_next <= tmp;
-- Populate Participant Slot
mem_stage_next <= INSERT_PARTICIPANT;
mem_addr_next <= tmp;
addr_res_next <= tmp;
mem_cnt_next <= 0;
end if;
else
-- Latch last occupied Participant Slot
last_addr_next <= mem_addr_base;
-- Continue Search
mem_addr_next <= tmp;
mem_addr_base_next <= tmp;
@ -3586,12 +3637,30 @@ begin
when 3 =>
-- Slot Occupied
if (mem_read_data /= GUIDPREFIX_UNKNOWN(2)) then
if (mem_addr_base = MAX_PARTICIPANT_ADDRESS) then
report "Memory Full, ignoring Participant Data" severity WARNING;
addr_res_next <= MAX_ADDRESS; --No match
-- DONE
mem_stage_next <= IDLE;
if (mem_addr_base = max_participant_addr) then
-- We are in the middle of resetting the MAX Participant Pointer
if (reset_max_pointer = '1') then
-- No Change
mem_stage_next <= IDLE;
-- MEMORY FULL
elsif (max_participant_addr = MAX_PARTICIPANT_ADDRESS) then
report "Memory Full, Ignoring Participant Data" severity NOTE;
-- Ignore Insertion
mem_stage_next <= IDLE;
addr_res_next <= MAX_ADDRESS;
else
-- Extend Participant Memory Area
-- NOTE: "max_participant_addr" points to the first address of last participant frame
max_participant_addr_next <= tmp;
-- Populate Participant Slot
mem_stage_next <= INSERT_PARTICIPANT;
mem_addr_next <= tmp;
addr_res_next <= tmp;
mem_cnt_next <= 0;
end if;
else
-- Latch last occupied Participant Slot
last_addr_next <= mem_addr_base;
-- Continue Search
mem_addr_next <= tmp;
mem_addr_base_next <= tmp;
@ -3599,10 +3668,26 @@ begin
end if;
-- Slot Empty
else
-- Populate Participant Slot
mem_stage_next <= INSERT_PARTICIPANT;
mem_addr_next <= mem_addr_base;
mem_cnt_next <= 0;
if (reset_max_pointer = '1') then
-- Mak sure to iterate through complete participant area
if (mem_addr_base = max_participant_addr) then
-- Reset Pointer to last occupied participant Slot
max_participant_addr_next <= last_addr;
-- DONE
mem_stage_next <= IDLE;
else
-- Continue Search
mem_addr_next <= tmp;
mem_addr_base_next <= tmp;
mem_cnt_next <= 0;
end if;
else
-- Populate Participant Slot
mem_stage_next <= INSERT_PARTICIPANT;
mem_addr_next <= mem_addr_base;
addr_res_next <= mem_addr_base;
mem_cnt_next <= 0;
end if;
end if;
when others =>
null;
@ -3651,7 +3736,7 @@ begin
-- Slot Empty
else
-- Reached End of Memory, No Match
if (mem_addr_base = MAX_PARTICIPANT_ADDRESS) then
if (mem_addr_base = max_participant_addr) then
addr_res_next <= MAX_ADDRESS; --No match
-- DONE
mem_stage_next <= IDLE;
@ -3707,7 +3792,7 @@ begin
-- Slot Empty
else
-- Reached End of Memory, No Match
if (mem_addr_base = MAX_PARTICIPANT_ADDRESS) then
if (mem_addr_base = max_participant_addr) then
addr_res_next <= MAX_ADDRESS; --No match
-- DONE
mem_stage_next <= IDLE;
@ -3794,7 +3879,7 @@ begin
-- Participant not Stale
else
-- Reached End of Memory, No Match
if (mem_addr_base = MAX_PARTICIPANT_ADDRESS) then
if (mem_addr_base = max_participant_addr) then
addr_res_next <= MAX_ADDRESS; --No match
-- DONE
mem_stage_next <= IDLE;
@ -3857,8 +3942,10 @@ begin
mem_addr_base <= (others => '0');
mem_addr <= (others => '0');
addr_res <= (others => '0');
last_addr <= (others => '0');
long_latch <= (others => '0');
rcvd <= (others => '0');
max_participant_addr <= FIRST_PARTICIPANT_ADDRESS;
guid <= (others => (others => '0'));
mem_guidprefix <= (others => (others => '0'));
lease_duration <= (others => (others => '0'));
@ -3888,6 +3975,7 @@ begin
stale_check <= '0';
is_live_assert <= '0';
is_heartbeat_res <= '0';
reset_max_pointer <= '0';
last_word_in_latch <= '0';
else
stage <= stage_next;
@ -3915,8 +4003,10 @@ begin
mem_addr_base <= mem_addr_base_next;
mem_addr <= mem_addr_next;
addr_res <= addr_res_next;
last_addr <= last_addr_next;
long_latch <= long_latch_next;
rcvd <= rcvd_next;
max_participant_addr <= max_participant_addr_next;
guid <= guid_next;
mem_guidprefix <= mem_guidprefix_next;
lease_duration <= lease_duration_next;
@ -3946,6 +4036,7 @@ begin
stale_check <= stale_check_next;
is_live_assert <= is_live_assert_next;
is_heartbeat_res <= is_heartbeat_res_next;
reset_max_pointer <= reset_max_pointer_next;
last_word_in_latch <= last_word_in_latch_next;
end if;
end if;