private void Forward(IxgbeDevice rxDev, int rxQueue, IxgbeDevice txDev, int txQueue, Span <PacketBuffer> buffers)
{
var rxBuffCount = rxDev.RxBatch(rxQueue, buffers);
if (rxBuffCount > 0)
{
var rxBuffers = buffers.Slice(0, rxBuffCount);
//Touch all buffers to simulate a realistic scenario
foreach (var buffer in rxBuffers)
{
buffer.Touch();
}
var txBuffCount = txDev.TxBatch(txQueue, rxBuffers);
_mempool = (_mempool == null) ? Mempool.FindPool(rxBuffers[0].MempoolId) : _mempool;
//Drop unsent packets
foreach (var buffer in rxBuffers.Slice(txBuffCount))
{
_mempool.FreeBuffer(buffer);
}
}
}
private void InitMempool()
{
_mempool = MemoryHelper.AllocateMempool(BuffersCount);
//Pre-fill all our packet buffers with some templates that can be modified later
var buffers = new PacketBuffer[BuffersCount];
for (int i = 0; i < BuffersCount; i++)
{
var buffer = _mempool.GetPacketBuffer();
buffer.Size = (uint)PacketData.Length;
buffer.WriteData(0, PacketData);
var ipData = buffer.CopyData(14, 20);
buffer.WriteData(24, (short)CalcIpChecksum(ipData));
buffers[i] = buffer;
}
//Return them all to the mempool, all future allocations will return buffers with the data set above
foreach (var buffer in buffers)
{
_mempool.FreeBuffer(buffer);
}
}