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| author | Martin Braun <martin.braun@ettus.com> | 2016-11-14 14:30:34 -0800 |
|---|---|---|
| committer | Martin Braun <martin.braun@ettus.com> | 2018-07-25 15:34:03 -0700 |
| commit | 988515ab19a715773086a7a8c023ddb8249c7e37 (patch) | |
| tree | 71c861c3a1d0a5e295dad5939358dd30e0a33f3b /host/lib/rfnoc/sink_block_ctrl_base.cpp | |
| parent | 8b16ab706fb4768f802ddb65a81fc26e1562cb0d (diff) | |
| download | uhd-988515ab19a715773086a7a8c023ddb8249c7e37.tar.gz uhd-988515ab19a715773086a7a8c023ddb8249c7e37.tar.bz2 uhd-988515ab19a715773086a7a8c023ddb8249c7e37.zip | |
Device3: Change packet-based flow control to byte-based flow control
Diffstat (limited to 'host/lib/rfnoc/sink_block_ctrl_base.cpp')
| -rw-r--r-- | host/lib/rfnoc/sink_block_ctrl_base.cpp | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/host/lib/rfnoc/sink_block_ctrl_base.cpp b/host/lib/rfnoc/sink_block_ctrl_base.cpp index b620f917f..1562e134b 100644 --- a/host/lib/rfnoc/sink_block_ctrl_base.cpp +++ b/host/lib/rfnoc/sink_block_ctrl_base.cpp @@ -52,22 +52,17 @@ size_t sink_block_ctrl_base::get_fifo_size(size_t block_port) const { } void sink_block_ctrl_base::configure_flow_control_in( - size_t cycles, - size_t packets, + size_t bytes, size_t block_port ) { - UHD_RFNOC_BLOCK_TRACE() << boost::format("sink_block_ctrl_base::configure_flow_control_in(cycles=%d, packets=%d)") % cycles % packets ; - uint32_t cycles_word = 0; - if (cycles) { - cycles_word = (1<<31) | cycles; - } - sr_write(SR_FLOW_CTRL_CYCS_PER_ACK, cycles_word, block_port); + UHD_RFNOC_BLOCK_TRACE() << boost::format("sink_block_ctrl_base::configure_flow_control_in(bytes=%d)") % bytes; - uint32_t packets_word = 0; - if (packets) { - packets_word = (1<<31) | packets; + uint32_t bytes_word = 0; + if (bytes) { + // Bit 32 enables flow control + bytes_word = (1<<31) | bytes; } - sr_write(SR_FLOW_CTRL_PKTS_PER_ACK, packets_word, block_port); + sr_write(SR_FLOW_CTRL_BYTES_PER_ACK, bytes_word, block_port); } void sink_block_ctrl_base::set_error_policy( |