usrp2: removed SX packet count stuff from vrt packet handler, moved to usrp2 io impl and replaced with Os

2 files changed, 9 insertions, 15 deletions

diff --git a/host/lib/transport/vrt_packet_handler.hpp b/host/lib/transport/vrt_packet_handler.hpp
index 702d3bfb9..c5c63b089 100644
--- a/host/lib/transport/vrt_packet_handler.hpp
+++ b/host/lib/transport/vrt_packet_handler.hpp
@@ -48,9 +48,6 @@ namespace vrt_packet_handler{
         //width of the receiver in channels
         size_t width;
 
-        //init the expected seq number
-        std::vector<size_t> next_packet_seq;
-
         //state variables to handle fragments
         managed_recv_buffs_t managed_buffs;
         std::vector<const boost::uint8_t *> copy_buffs;
@@ -59,7 +56,6 @@ namespace vrt_packet_handler{
 
         recv_state(size_t width = 1):
             width(width),
-            next_packet_seq(width, 0),
             managed_buffs(width),
             copy_buffs(width, NULL),
             size_of_copy_buffs(0),
@@ -98,12 +94,6 @@ namespace vrt_packet_handler{
             vrt_unpacker(vrt_hdr, if_packet_info);
             const boost::uint32_t *vrt_data = vrt_hdr + if_packet_info.num_header_words32;
 
-            //handle the packet count / sequence number
-            if (if_packet_info.packet_count != state.next_packet_seq[i]){
-                std::cerr << "S" << (if_packet_info.packet_count - state.next_packet_seq[i])%16;
-            }
-            state.next_packet_seq[i] = (if_packet_info.packet_count+1)%16;
-
             //handle the non-data packet case and parse its contents
             if (if_packet_info.packet_type != uhd::transport::vrt::if_packet_info_t::PACKET_TYPE_DATA){
 
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()
             );