bugfix: when frame corrupted in the header (or vlan unit droping frame cause…

bugfix: when frame corrupted in the header (or vlan unit droping frame cause frame is tagged and port is set to be access) the request to RTU was sent anyway... swcore was dropping frame, then receiving wrong RTU response... a mess. Now no rtu-req is done when frame corrupted in the header. still need to fix swcore->input block

bugfix: when frame corrupted in the header (or vlan unit droping frame cause…
bugfix: when frame corrupted in the header (or vlan unit droping frame cause frame is tagged and port is set to be access) the request to RTU was sent anyway... swcore was dropping frame, then receiving wrong RTU response... a mess. Now no rtu-req is done when frame corrupted in the header. still need to fix swcore->input block
f9e9cdce · Maciej Lipinski · Grzegorz Daniluk · 9b4d6544 · f9e9cdce
Commit f9e9cdce authored Nov 07, 2013 by Maciej Lipinski Committed by Grzegorz Daniluk Feb 04, 2014
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ep_rtu_header_extract.vhd modules/wr_endpoint/ep_rtu_header_extract.vhd +7 -2

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--- a/modules/wr_endpoint/ep_rtu_header_extract.vhd
+++ b/modules/wr_endpoint/ep_rtu_header_extract.vhd
@@ -98,7 +98,12 @@ begin  -- rtl
          
          if(snk_fab_i.dvalid = '1'  and hdr_offset(6) = '1' and in_packet = '1') then
            rtu_rq_valid_basic <='1';
-          elsif(rtu_rq_valid_out = '1') then
+          elsif(rtu_rq_valid_out = '1' or   -- reset after making request or
+                snk_fab_i.error = '1') then -- when there is error in the header, so we don't 
+                                            -- make request for invalid frame which will be dumped
+                                            -- in the SWcore (which reads error status).
+                                            -- the special case when error occurs when the request
+                                            -- is made, we do end with the output of error (below, end of file)
            rtu_rq_valid_basic     <= '0';
          end if;
          
@@ -137,6 +142,6 @@ begin  -- rtl
  rtu_rq_o.has_vid   <= vlan_is_tagged_i;
  rtu_rq_o.prio      <= vlan_class_i;
  rtu_rq_o.has_prio  <= vlan_is_tagged_i;
-  rtu_rq_valid_o     <= rtu_rq_valid_out;
+  rtu_rq_valid_o     <= rtu_rq_valid_out and not snk_fab_i.error;
  
 end rtl;