diff options
| -rw-r--r-- | host/lib/rfnoc/source_block_ctrl_base.cpp | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/host/lib/rfnoc/source_block_ctrl_base.cpp b/host/lib/rfnoc/source_block_ctrl_base.cpp index 656ab26af..efdf94e9f 100644 --- a/host/lib/rfnoc/source_block_ctrl_base.cpp +++ b/host/lib/rfnoc/source_block_ctrl_base.cpp @@ -102,25 +102,6 @@ void source_block_ctrl_base::configure_flow_control_out(const bool enable_fc_out % buf_size_bytes % unique_id())); } - // Disable flow control entirely and let all upstream data flush out - // We need to do this every time the window is changed because - // a) We don't know what state the flow-control module was left in - // in the previous run (it should still be enabled) - // b) Changing the window size where data is buffered upstream may - // result in stale packets entering the stream. - sr_write(SR_FLOW_CTRL_EN, 0, block_port); - - // Wait for data to flush out. - // In the FPGA we are guaranteed that all buffered packets are more-or-less - // consecutive. 1ms@200MHz = 200,000 cycles of "flush time". 200k cycles = 200k * 8 - // bytes (64 bits) = 1.6MB of data that can be flushed. Typically in the FPGA we have - // buffering in the order of kilobytes so waiting for 1MB to flush is more than enough - // time. - // TODO: Enhancement. We should get feedback from the FPGA about when the - // source_flow_control - // module is done flushing. - std::this_thread::sleep_for(std::chrono::milliseconds(1)); - // Enable source flow control module and conditionally enable byte based and/or packet // count based flow control const bool enable_byte_fc = (buf_size_bytes != 0); |