diff options
Diffstat (limited to 'host/lib/usrp/device3/device3_io_impl.cpp')
| -rw-r--r-- | host/lib/usrp/device3/device3_io_impl.cpp | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/host/lib/usrp/device3/device3_io_impl.cpp b/host/lib/usrp/device3/device3_io_impl.cpp index bf527e0ba..d0ec52971 100644 --- a/host/lib/usrp/device3/device3_io_impl.cpp +++ b/host/lib/usrp/device3/device3_io_impl.cpp @@ -731,9 +731,14 @@ tx_streamer::sptr device3_impl::get_tx_stream(const uhd::stream_args_t& args_) // CHDR does not support trailers my_streamer->set_enable_trailer(false); - my_streamer->set_xport_chan_post_send_cb(stream_i, [fc_cache, xport]() { - tx_flow_ctrl_ack(fc_cache, xport.send, xport.send_sid); - }); + // Avoid sending FC ACKs if the transport is lossless or the user + // has explictly requested not to send them + if (not (xport.lossless or tx_hints.has_key("send_no_fc_acks"))) + { + my_streamer->set_xport_chan_post_send_cb(stream_i, [fc_cache, xport]() { + tx_flow_ctrl_ack(fc_cache, xport.send, xport.send_sid); + }); + } } // Notify all blocks in this chain that they are connected to an active streamer |