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-rw-r--r--host/lib/usrp/usrp2/io_impl.cpp14
1 files changed, 9 insertions, 5 deletions
diff --git a/host/lib/usrp/usrp2/io_impl.cpp b/host/lib/usrp/usrp2/io_impl.cpp
index 7e231095f..430f28390 100644
--- a/host/lib/usrp/usrp2/io_impl.cpp
+++ b/host/lib/usrp/usrp2/io_impl.cpp
@@ -83,6 +83,8 @@ void usrp2_impl::io_impl::recv_pirate_loop(
){
set_thread_priority_safe();
recv_pirate_crew_raiding = true;
+ size_t next_packet_seq = 0;
+
while(recv_pirate_crew_raiding){
managed_recv_buffer::sptr buff = zc_if->get_recv_buff();
if (not buff.get()) continue; //ignore timeout/error buffers
@@ -93,13 +95,15 @@ void usrp2_impl::io_impl::recv_pirate_loop(
if_packet_info.num_packet_words32 = buff->size()/sizeof(boost::uint32_t);
vrt::if_hdr_unpack_be(buff->cast<const boost::uint32_t *>(), if_packet_info);
+ //handle the packet count / sequence number
+ if (if_packet_info.packet_count != next_packet_seq){
+ //std::cerr << "S" << (if_packet_info.packet_count - next_packet_seq)%16;
+ std::cerr << "O"; //report overrun (drops in the kernel)
+ }
+ next_packet_seq = (if_packet_info.packet_count+1)%16;
+
//extract the timespec and round to the nearest packet
UHD_ASSERT_THROW(if_packet_info.has_tsi and if_packet_info.has_tsf);
-
- //size_t pkt_dur_ticks = mboard->get_master_clock_freq() * 1; //TODO FIXME
- //size_t(if_packet_info.tsf) - size_t(if_packet_info.tsf)%pkt_dur_ticks
- //the idea is to round the time specs to packet boundaries to avoid the issue
- //of never getting alignment when things are not locked properly
time_spec_t time(
time_t(if_packet_info.tsi), size_t(if_packet_info.tsf), mboard->get_master_clock_freq()
);