Matt's attempt at merging

Merge branch 'tx_policy' into ise12_efifo_work

* tx_policy:
  rx error context packets should not be marked as errors in the fifo
  provide a way to get out of the error state without processor intervention
  sequence number reset upon programming streamid
  attempt at avoiding infinite error messages
  implemented "next packet" and "next burst" policies
  sequence errors can happen on start of burst as well.
  more informative error codes
  cleaner error handling
  introduce new error types
  test mux and gen_context_pkt
  this is an output file, it shouldn't be checked in
  insert protocol engine flags when requested
  move the streamid so it isn't at the same address as clear_state
  connect the demux
  fix a typo
  tx error packets now muxed into the ethernet stream back to the host
  checkpoint.  New context packet generator to report underruns and other errors

Conflicts:
	usrp2/top/u2_rev3/u2_core_udp.v

1 files changed, 22 insertions, 3 deletions

diff --git a/usrp2/fifo/fifo_tb.v b/usrp2/fifo/fifo_tb.v
index f561df7fa..327da4700 100644
--- a/usrp2/fifo/fifo_tb.v
+++ b/usrp2/fifo/fifo_tb.v
@@ -24,20 +24,39 @@ module fifo_new_tb();
    wire i1_sr, i1_dr;
    wire i2_sr, i2_dr;
    wire i3_sr, i3_dr;
+   wire i7_sr, i7_dr;
+   
    reg i4_dr = 0;
    wire i4_sr;
       
-   wire [35:0] i1, i4;
+   wire [35:0] i1, i4, i7;
    wire [18:0] i2, i3;
    
    wire [7:0] ll_data;
    wire ll_src_rdy_n, ll_dst_rdy_n, ll_sof_n, ll_eof_n;
+   wire [35:0] err_dat;
+   wire        err_src_rdy, err_dst_rdy;
+
+   reg 	       trigger = 0;
+   initial #10000 trigger = 1;
    
    fifo_short #(.WIDTH(36)) fifo_short1
      (.clk(clk),.reset(rst),.clear(clear),
       .datain(f36_in),.src_rdy_i(src_rdy_f36i),.dst_rdy_o(dst_rdy_f36i),
-      .dataout(i1),.src_rdy_o(i1_sr),.dst_rdy_i(i1_dr) );
+      .dataout(i7),.src_rdy_o(i7_sr),.dst_rdy_i(i7_dr) );
 
+   gen_context_pkt #(.PROT_ENG_FLAGS(1)) gcp
+     (.clk(clk),.reset(rst),.clear(clear),
+      .trigger(trigger), .sent(),
+      .streamid(32'hDEAD_F00D), .vita_time(64'h01234567_89ABCDEF), .message(32'hBEEF_2940),
+      .data_o(err_dat), .src_rdy_o(err_src_rdy), .dst_rdy_i(err_dst_rdy));
+   
+   fifo36_mux #(.prio(0)) fifo36_mux
+     (.clk(clk), .reset(rst), .clear(clear),
+      .data0_i(i7), .src0_rdy_i(i7_sr), .dst0_rdy_o(i7_dr),
+      .data1_i(err_dat), .src1_rdy_i(err_src_rdy), .dst1_rdy_o(err_dst_rdy),
+      .data_o(i1), .src_rdy_o(i1_sr), .dst_rdy_i(i1_dr));
+   
    fifo36_to_fifo19 fifo36_to_fifo19
      (.clk(clk),.reset(rst),.clear(clear),
       .f36_datain(i1),.f36_src_rdy_i(i1_sr),.f36_dst_rdy_o(i1_dr),
@@ -59,7 +78,7 @@ module fifo_new_tb();
      (.clk(clk),.reset(rst),.clear(clear),
       .f19_datain(i3),.f19_src_rdy_i(i3_sr),.f19_dst_rdy_o(i3_dr),
       .f36_dataout(i4),.f36_src_rdy_o(i4_sr),.f36_dst_rdy_i(i4_dr) );
-     
+
    task ReadFromFIFO36;
       begin
 	 $display("Read from FIFO36");