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| author | mattprost <matt.prost@ni.com> | 2021-03-31 11:33:33 -0500 |
|---|---|---|
| committer | Aaron Rossetto <aaron.rossetto@ni.com> | 2021-04-29 14:35:26 -0500 |
| commit | d689df23fb4bf38e1abc23b06767fc26aa27c163 (patch) | |
| tree | b89a640a8e86ec572958d7602cc2c9d834f68fdf /host/lib/rfnoc/chdr_rx_data_xport.cpp | |
| parent | 99e5230e4bf26166ee1accce1e57ff24b0629826 (diff) | |
| download | uhd-d689df23fb4bf38e1abc23b06767fc26aa27c163.tar.gz uhd-d689df23fb4bf38e1abc23b06767fc26aa27c163.tar.bz2 uhd-d689df23fb4bf38e1abc23b06767fc26aa27c163.zip | |
rfnoc: Add option to disable flow control on rx streaming
Disabling this feature will allow the USRP to send a continuous stream
of Rx data to a host machine without throttling due to lack of flow
control credits. This is unnecessary overhead on lossless transports
such as pcie or aurora.
Usage: add 'enable_fc=false' to stream_args.args
Signed-off-by: mattprost <matt.prost@ni.com>
Diffstat (limited to 'host/lib/rfnoc/chdr_rx_data_xport.cpp')
| -rw-r--r-- | host/lib/rfnoc/chdr_rx_data_xport.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/host/lib/rfnoc/chdr_rx_data_xport.cpp b/host/lib/rfnoc/chdr_rx_data_xport.cpp index 74b310fa1..7089c9071 100644 --- a/host/lib/rfnoc/chdr_rx_data_xport.cpp +++ b/host/lib/rfnoc/chdr_rx_data_xport.cpp @@ -200,7 +200,9 @@ chdr_rx_data_xport::fc_params_t chdr_rx_data_xport::configure_sep(io_service::sp recv_io->release_recv_buff(std::move(buff)); // Finally, let the management portal know the setup is complete - mgmt_portal.config_local_rx_stream_commit(*ctrl_xport, remote_epid); + const bool fc_enabled = (fc_freq.bytes != 0) || (fc_freq.packets != 0); + mgmt_portal.config_local_rx_stream_commit( + *ctrl_xport, remote_epid, 0.2 /*default timeout*/, fc_enabled); // The flow control frequency requested is contained in the strc UHD_LOG_TRACE("XPORT::RX_DATA_XPORT", |