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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/transport/chdr.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/transport/chdr.cpp')
| -rw-r--r-- | host/lib/transport/chdr.cpp | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/host/lib/transport/chdr.cpp b/host/lib/transport/chdr.cpp index 48263f57e..36f380d62 100644 --- a/host/lib/transport/chdr.cpp +++ b/host/lib/transport/chdr.cpp @@ -23,6 +23,7 @@ using namespace uhd::transport::vrt; static const uint32_t HDR_FLAG_TSF = (1 << 29); static const uint32_t HDR_FLAG_EOB = (1 << 28); static const uint32_t HDR_FLAG_ERROR = (1 << 28); +static const uint32_t HDR_FLAG_FCACK = (1 << 28); /***************************************************************************/ /* Packing */ @@ -45,8 +46,8 @@ UHD_INLINE uint32_t _hdr_pack_chdr( | (if_packet_info.packet_type << 30) // 1 Bit: Has time | (if_packet_info.has_tsf ? HDR_FLAG_TSF : 0) - // 1 Bit: EOB or Error - | ((if_packet_info.eob or if_packet_info.error) ? HDR_FLAG_EOB : 0) + // 1 Bit: EOB or Error or FC ACK + | ((if_packet_info.eob or if_packet_info.error or if_packet_info.fc_ack) ? HDR_FLAG_EOB : 0) // 12 Bits: Sequence number | ((if_packet_info.packet_count & 0xFFF) << 16) // 16 Bits: Total packet length @@ -111,6 +112,8 @@ UHD_INLINE void _hdr_unpack_chdr( && ((chdr & HDR_FLAG_EOB) > 0); if_packet_info.error = (if_packet_info.packet_type == if_packet_info_t::PACKET_TYPE_RESP) && ((chdr & HDR_FLAG_ERROR) > 0); + if_packet_info.fc_ack = (if_packet_info.packet_type == if_packet_info_t::PACKET_TYPE_FC) + && ((chdr & HDR_FLAG_FCACK) > 0); if_packet_info.packet_count = (chdr >> 16) & 0xFFF; // Set packet length variables |