/*
* Function: Push
* Description: Push a new segment into the buffer
*/
public bool Push(uint tkeep, bool tlast, ulong tdata_0, ulong tdata_1, ulong tdata_2, ulong tdata_3,
ulong tuser_hi, ulong tuser_low, bool pstart = false)
{
if (!CanPush())
{
DebugFunctions.push_interrupt(DebugFunctions.Errors.FIFO_FULL);
return(false);
}
//lock (_lck)
//{
if (pstart)
{
_curstart = writeloc;
}
_tkeep[writeloc] = tkeep;
_tlast[writeloc] = tlast;
_tdata_0[writeloc] = tdata_0;
_tdata_1[writeloc] = tdata_1;
_tdata_2[writeloc] = tdata_2;
_tdata_3[writeloc] = tdata_3;
_tuser_hi[writeloc] = tuser_hi;
_tuser_low[writeloc] = tuser_low;
_pstart[writeloc] = _curstart;
_valid[writeloc] = true;
Count++;
writeloc = (writeloc + 1) % Bufsize;
//}
Emu.debug_reg = Count;
return(true);
}
public bool sendOne(bool check_ready = true, bool check_updated = true)
{
if ((!check_updated || s_updated) && (!check_ready || Emu.axi_m_axis_tready))
{
s_updated = false;
Emu.axi_m_axis_tvalid = true;
Emu.axi_m_axis_tdata_0 = axi_m_axis_tdata_0;
Emu.axi_m_axis_tdata_1 = axi_m_axis_tdata_1;
Emu.axi_m_axis_tdata_2 = axi_m_axis_tdata_2;
Emu.axi_m_axis_tdata_3 = axi_m_axis_tdata_3;
Emu.axi_m_axis_tstrb = axi_m_axis_tstrb;
Emu.axi_m_axis_tkeep = axi_m_axis_tkeep;
Emu.axi_m_axis_tlast = axi_m_axis_tlast;
Emu.axi_m_axis_tid = axi_m_axis_tid;
Emu.axi_m_axis_tdest = axi_m_axis_tdest;
Emu.axi_m_axis_tuser_0 = axi_m_axis_tuser_0;
Emu.axi_m_axis_tuser_1 = axi_m_axis_tuser_1;
Kiwi.Pause();
Emu.axi_m_axis_tvalid = false;
return(true);
}
if (check_ready && !Emu.axi_m_axis_tready)
{
DebugFunctions.push_interrupt(DebugFunctions.Errors.SEND_NOT_READY);
return(false);
}
return(false);
}
public bool push(ulong data)
{
if (!Emu.fifo_full)
{
Emu.fifo_din = data;
Emu.fifo_wr_en = true;
Kiwi.Pause();
Emu.fifo_wr_en = false;
return(true);
}
DebugFunctions.push_interrupt(DebugFunctions.Errors.FIFO_FULL);
return(false);
}
public ulong pop()
{
if (!Emu.fifo_empty)
{
var data = Emu.fifo_dout;
Emu.fifo_rd_en = true;
Kiwi.Pause();
Emu.fifo_rd_en = false;
return(data);
}
DebugFunctions.push_interrupt(DebugFunctions.Errors.FIFO_EMPTY);
return(0);
}
private static void run()
{
//Test Packet Generation
SetPacketData();
//Generate packet (uses ethernet, ip and udp generator)
HeaderGen.WriteUDPHeader(cfb, up, ep, ip, InterfaceFunctions.PORT_BROADCAST);
//Write Contents of Buffer
cfb.PrintContents();
cfb.ResetPeek();
// Verify Parsed Values
ep.Parse(cfb);
System.Console.WriteLine($"src_mac: {ep.SrcMac:X12} dest_mac: {ep.DestMac:X12} ethertype: {ep.Ethertype:X4}");
ip.Parse(cfb);
System.Console.WriteLine($"version: {ip.Version} IHL: {ip.IHL} DSCP: {ip.DSCP} ECN: {ip.ECN}");
System.Console.WriteLine($"total_length: {ip.TotalLength} id: {ip.Identification} flags: {ip.Flags}");
System.Console.WriteLine($"frag_offset: {ip.FragmentOffset} TTL: {ip.TTL} protocol: {ip.Protocol}");
System.Console.WriteLine($"src_ip: {ip.SrcIp:X8} dest_ip: {ip.DestIp:X8}");
up.Parse(cfb, ip.IHL);
System.Console.WriteLine($"src_port: {up.SrcPort:x4} dest_port: {up.DestPort:x4} length: {up.Length:x4}");
// Verify Interrupts
DebugFunctions.interrupts_enable();
DebugFunctions.push_interrupt(DebugFunctions.Errors.PACKET_DROP);
DebugFunctions.push_interrupt(DebugFunctions.Errors.PARSE_FAIL);
System.Console.WriteLine($"errors: {Emu.Interrupts:X16}");
DebugFunctions.reset_interrupt();
System.Console.WriteLine($"errors: {Emu.Interrupts:X16}");
// Verify Sending Packets
CircularNetworkFunctions.SendOne(cfb, false, true);
System.Console.WriteLine($"data0: {Emu.m_axis_tdata_0:X16}");
System.Console.WriteLine($"data1: {Emu.m_axis_tdata_1:X16}");
System.Console.WriteLine($"data2: {Emu.m_axis_tdata_2:X16}");
System.Console.WriteLine($"data3: {Emu.m_axis_tdata_3:X16}");
CircularNetworkFunctions.SendOne(cfb, false, true);
System.Console.WriteLine($"data0: {Emu.m_axis_tdata_0:X16}");
System.Console.WriteLine($"data1: {Emu.m_axis_tdata_1:X16}");
System.Console.WriteLine($"data2: {Emu.m_axis_tdata_2:X16}");
System.Console.WriteLine($"data3: {Emu.m_axis_tdata_3:X16}");
}
/*
* Function: UpdatePeek
* Description: Update the value of the current peek location with the contents of a BufferEntry
*/
public bool UpdatePeek(BufferEntry be)
{
//lock (_lck)
//{
//lock (PeekData)
//{
if (!_valid[peekloc])
{
DebugFunctions.push_interrupt(DebugFunctions.Errors.PACKET_BUFFER_INVALID);
return(false);
}
_tkeep[peekloc] = be.Tkeep;
_tlast[peekloc] = be.Tlast;
_tdata_0[peekloc] = be.Tdata0;
_tdata_1[peekloc] = be.Tdata1;
_tdata_2[peekloc] = be.Tdata2;
_tdata_3[peekloc] = be.Tdata3;
_tuser_hi[peekloc] = be.TuserHi;
_tuser_low[peekloc] = be.TuserLow;
return(true);
//}
//}
}