T tracer: add gnb tracer

Minimalist gnb tracer to trace (for the moment) rxdataF when some
decoding for PUCCH or PUSCH has been done.

Important: T_BUFFER_MAX and T_CACHE_SIZE have been changed. T_BUFFER_MAX
is twice as big as before. T_CACHE_SIZE has been devided by two. Globally,
the memory usage of the T tracer is the same, but since we divided by two
the number of buffers in the cache, we may hit some realtime problems if
all the buffers are busy at some point. The simple solution would be to
use 8192*2 for T_CACHE_SIZE as it was, but then we double the memory usage
of the T tracer. This, or another solution, to be defined.

common/utils/T/.gitignore

@@ -4,6 +4,7 @@ T_IDs.h
 T_messages.txt.h
 genids
 tracer/enb
+tracer/gnb
 tracer/extract_config
 tracer/record
 tracer/replay

common/utils/T/T_defs.h

@@ -44,7 +44,7 @@
    /* let's have 100 RBs functional for the basic simulator */
 #  define T_BUFFER_MAX (1024*64*2)
 #else
-#  define T_BUFFER_MAX (1024*64)
+#  define T_BUFFER_MAX (1024*128)
 #endif
 
 /* size of the local cache for messages (must be pow(2,something)) */
@@ -52,7 +52,7 @@
    /* we don't need much space for the basic simulator */
 #  define T_CACHE_SIZE 1024
 #else
-#  define T_CACHE_SIZE (8192 * 2)
+#  define T_CACHE_SIZE (8192)
 #endif
 
 /* maximum number of bytes a message can contain */

common/utils/T/T_messages.txt

@@ -89,6 +89,10 @@ ID = GNB_PHY_MIB
     DESC = NR MIB data
     GROUP = ALL:PHY:GNB:WIRESHARK
     FORMAT = int,gNB_ID : int,frame : int,slot : buffer,data
+ID = GNB_PHY_PUCCH_PUSCH_IQ
+    DESC = gNodeB input data in the frequency domain for a slot where some PUCCH or PUSCH detection was done
+    GROUP = ALL:PHY:GRAPHIC:HEAVY:GNB
+    FORMAT = int,frame : int,slot : buffer,rxdataF
 
 #MAC logs
 ID = ENB_MAC_UE_DL_SDU

common/utils/T/tracer/Makefile

@@ -7,7 +7,8 @@ LIBS=-lm
 XLIBS=-lX11 -lpng -lXft
 
 all: record replay extract_config textlog enb ue vcd macpdu2wireshark \
-     extract_input_subframe extract_output_subframe to_vcd extract multi
+     extract_input_subframe extract_output_subframe to_vcd extract multi \
+     gnb
 
 record: utils.o record.o database.o config.o
 	$(CC) $(CFLAGS) -o record $^ $(LIBS)
@@ -60,6 +61,11 @@ macpdu2wireshark: macpdu2wireshark.o database.o utils.o handler.o event.o \
 multi: multi.o utils.o database.o config.o
 	$(CC) $(CFLAGS) -o multi $^ $(LIBS)
 
+gnb: utils.o gnb.o database.o event.o handler.o config.o \
+         view/view.a gui/gui.a logger/logger.a \
+         filter/filter.a
+	$(CC) $(CFLAGS) -o gnb $^ $(LIBS) $(XLIBS)
+
 multi.o: ../T_IDs.h
 
 ../T_IDs.h:
@@ -85,7 +91,7 @@ filter/filter.a:
 clean:
 	rm -f *.o core tracer_remote textlog enb ue vcd record replay
 	rm -f extract_config macpdu2wireshark extract_input_subframe
-	rm -f extract_output_subframe to_vcd extract multi
+	rm -f extract_output_subframe to_vcd extract multi gnb
 	cd gui && $(MAKE) clean
 	cd view && $(MAKE) clean
 	cd logger && $(MAKE) clean

common/utils/T/tracer/gnb.c

+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <pthread.h>
+#include <unistd.h>
+#include "database.h"
+#include "handler.h"
+#include "config.h"
+#include "logger/logger.h"
+#include "view/view.h"
+#include "gui/gui.h"
+
+typedef struct {
+  widget *pucch_pusch_iq_plot;
+  logger *pucch_pusch_iq_logger;
+} gnb_gui;
+
+typedef struct {
+  int socket;
+  int *is_on;
+  int nevents;
+  pthread_mutex_t lock;
+  gnb_gui *e;
+  void *database;
+} gnb_data;
+
+void is_on_changed(void *_d)
+{
+  gnb_data *d = _d;
+  char t;
+
+  if (pthread_mutex_lock(&d->lock)) abort();
+
+  if (d->socket == -1) goto no_connection;
+
+  t = 1;
+  if (socket_send(d->socket, &t, 1) == -1 ||
+      socket_send(d->socket, &d->nevents, sizeof(int)) == -1 ||
+      socket_send(d->socket, d->is_on, d->nevents * sizeof(int)) == -1)
+    goto connection_dies;
+
+no_connection:
+  if (pthread_mutex_unlock(&d->lock)) abort();
+  return;
+
+connection_dies:
+  close(d->socket);
+  d->socket = -1;
+  if (pthread_mutex_unlock(&d->lock)) abort();
+}
+
+void usage(void)
+{
+  printf(
+"options:\n"
+"    -d   <database file>      this option is mandatory\n"
+"    -ip <host>                connect to given IP address (default %s)\n"
+"    -p  <port>                connect to given port (default %d)\n",
+  DEFAULT_REMOTE_IP,
+  DEFAULT_REMOTE_PORT
+  );
+  exit(1);
+}
+
+static void *gui_thread(void *_g)
+{
+  gui *g = _g;
+  gui_loop(g);
+  return NULL;
+}
+
+static void gnb_main_gui(gnb_gui *e, gui *g, event_handler *h, void *database,
+    gnb_data *ed)
+{
+  widget *main_window;
+  widget *top_container;
+  widget *line;
+  widget *w;
+  logger *l;
+  view *v;
+
+  main_window = new_toplevel_window(g, 500, 300, "gNB tracer");
+
+  top_container = new_container(g, VERTICAL);
+  widget_add_child(g, main_window, top_container, -1);
+
+  line = new_container(g, HORIZONTAL);
+  widget_add_child(g, top_container, line, -1);
+
+  /* PUCCH/PUSCH IQ data */
+  w = new_xy_plot(g, 55, 55, "", 50);
+  e->pucch_pusch_iq_plot = w;
+  widget_add_child(g, line, w, -1);
+  xy_plot_set_range(g, w, -1000, 1000, -1000, 1000);
+  xy_plot_set_title(g, w, "rxdataF");
+  l = new_iqlog_full(h, database, "GNB_PHY_PUCCH_PUSCH_IQ", "rxdataF");
+  v = new_view_xy(300*12*14,10,g,w,new_color(g,"#000"),XY_FORCED_MODE);
+  logger_add_view(l, v);
+  e->pucch_pusch_iq_logger = l;
+}
+
+int main(int n, char **v)
+{
+  char *database_filename = NULL;
+  void *database;
+  char *ip = DEFAULT_REMOTE_IP;
+  int port = DEFAULT_REMOTE_PORT;
+  int *is_on;
+  int number_of_events;
+  int i;
+  event_handler *h;
+  gnb_data gnb_data;
+  gui *g;
+  gnb_gui eg;
+
+  for (i = 1; i < n; i++) {
+    if (!strcmp(v[i], "-h") || !strcmp(v[i], "--help")) usage();
+    if (!strcmp(v[i], "-d"))
+      { if (i > n-2) usage(); database_filename = v[++i]; continue; }
+    usage();
+  }
+
+  if (database_filename == NULL) {
+    printf("ERROR: provide a database file (-d)\n");
+    exit(1);
+  }
+
+  database = parse_database(database_filename);
+
+  load_config_file(database_filename);
+
+  number_of_events = number_of_ids(database);
+  is_on = calloc(number_of_events, sizeof(int));
+  if (is_on == NULL) abort();
+
+  h = new_handler(database);
+
+  on_off(database, "GNB_PHY_PUCCH_PUSCH_IQ", is_on, 1);
+
+  gnb_data.database = database;
+  gnb_data.socket = -1;
+  gnb_data.is_on = is_on;
+  gnb_data.nevents = number_of_events;
+  if (pthread_mutex_init(&gnb_data.lock, NULL)) abort();
+
+  g = gui_init();
+  new_thread(gui_thread, g);
+
+  gnb_main_gui(&eg, g, h, database, &gnb_data);
+
+  OBUF ebuf = { osize: 0, omaxsize: 0, obuf: NULL };
+
+restart:
+  clear_remote_config();
+  if (gnb_data.socket != -1) close(gnb_data.socket);
+  gnb_data.socket = connect_to(ip, port);
+
+  /* send the first message - activate selected traces */
+  is_on_changed(&gnb_data);
+
+  /* read messages */
+  while (1) {
+    event e;
+    e = get_event(gnb_data.socket, &ebuf, database);
+    if (e.type == -1) goto restart;
+    if (pthread_mutex_lock(&gnb_data.lock)) abort();
+    handle_event(h, e);
+    if (pthread_mutex_unlock(&gnb_data.lock)) abort();
+  }
+
+  return 0;
+}

common/utils/T/tracer/logger/iqlog.c

@@ -74,6 +74,44 @@ static void _event(void *p, event e)
     l->common.v[i]->append(l->common.v[i], l->i, l->q, count);
 }
 
+static void _event_full(void *p, event e)
+{
+  struct iqlog *l = p;
+  int i;
+  void *buffer;
+  int bsize;
+  int nsamples;
+  float *idst, *qdst;
+
+  if (l->common.filter != NULL && filter_eval(l->common.filter, e) == 0)
+    return;
+
+  buffer = e.e[l->buffer_arg].b;
+  bsize = e.e[l->buffer_arg].bsize;
+
+  nsamples = bsize / 4;
+
+  if (nsamples > l->max_length) {
+    l->i = realloc(l->i, nsamples * sizeof(float));
+    if (l->i == NULL) abort();
+    l->q = realloc(l->q, nsamples * sizeof(float));
+    if (l->q == NULL) abort();
+    l->max_length = nsamples;
+  }
+
+  idst = l->i;
+  qdst = l->q;
+  for (i = 0; i < nsamples; i++) {
+    *idst = ((int16_t *)buffer)[i * 2];
+    *qdst = ((int16_t *)buffer)[i * 2 + 1];
+    idst++;
+    qdst++;
+  }
+
+  for (i = 0; i < l->common.vsize; i++)
+    l->common.v[i]->append(l->common.v[i], l->i, l->q, nsamples);
+}
+
 logger *new_iqlog(event_handler *h, void *database,
     char *event_name, char *nb_rb, char *N_RB_UL, char *symbols_per_tti,
     char *buffer_varname)
@@ -149,3 +187,43 @@ logger *new_iqlog(event_handler *h, void *database,
 
   return ret;
 }
+
+logger *new_iqlog_full(event_handler *h, void *database, char *event_name,
+    char *buffer_varname)
+{
+  struct iqlog *ret;
+  int event_id;
+  database_event_format f;
+  int i;
+
+  ret = calloc(1, sizeof(struct iqlog)); if (ret == NULL) abort();
+
+  ret->common.event_name = strdup(event_name);
+  if (ret->common.event_name == NULL) abort();
+  ret->database = database;
+
+  event_id = event_id_from_name(database, event_name);
+
+  ret->common.handler_id = register_handler_function(h, event_id, _event_full,
+                                                     ret);
+
+  f = get_format(database, event_id);
+
+  /* look for args */
+  ret->buffer_arg = -1;
+  for (i = 0; i < f.count; i++) {
+    if (!strcmp(f.name[i], buffer_varname)) ret->buffer_arg = i;
+  }
+  if (ret->buffer_arg == -1) {
+    printf("%s:%d: buffer argument '%s' not found in event '%s'\n",
+        __FILE__, __LINE__, buffer_varname, event_name);
+    abort();
+  }
+  if (strcmp(f.type[ret->buffer_arg], "buffer") != 0) {
+    printf("%s:%d: argument '%s' has wrong type (should be 'buffer')\n",
+        __FILE__, __LINE__, buffer_varname);
+    abort();
+  }
+
+  return ret;
+}

common/utils/T/tracer/logger/logger.h

@@ -23,6 +23,8 @@ logger *new_ticklog(void *event_handler, void *database,
 logger *new_iqlog(void *event_handler, void *database,
     char *event_name, char *nb_rb, char *N_RB_UL, char *symbols_per_tti,
     char *buffer_varname);
+logger *new_iqlog_full(void *event_handler, void *database, char *event_name,
+    char *buffer_varname);
 logger *new_iqdotlog(void *event_handler, void *database,
     char *event_name, char *I, char *Q);
 

openair1/SCHED_NR/phy_procedures_nr_gNB.c

@@ -542,6 +542,9 @@ void phy_procedures_gNB_common_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx)
 }
 
 void phy_procedures_gNB_uespec_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx) {
+  /* those variables to log T_GNB_PHY_PUCCH_PUSCH_IQ only when we try to decode */
+  int pucch_decode_done = 0;
+  int pusch_decode_done = 0;
 
   VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_gNB_UESPEC_RX,1);
   LOG_D(PHY,"phy_procedures_gNB_uespec_RX frame %d, slot %d\n",frame_rx,slot_rx);
@@ -558,6 +561,8 @@ void phy_procedures_gNB_uespec_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx)
 	  (pucch->frame == frame_rx) &&
 	  (pucch->slot == slot_rx) ) {
 
+        pucch_decode_done = 1;
+
         nfapi_nr_pucch_pdu_t  *pucch_pdu = &pucch->pucch_pdu;
         uint16_t num_ucis;
         switch (pucch_pdu->format_type) {
@@ -646,6 +651,8 @@ void phy_procedures_gNB_uespec_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx)
           }
 #endif
 
+          pusch_decode_done = 1;
+
           uint8_t symbol_start = ulsch_harq->ulsch_pdu.start_symbol_index;
           uint8_t symbol_end = symbol_start + ulsch_harq->ulsch_pdu.nr_of_symbols;
           VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_NR_RX_PUSCH,1);
@@ -673,5 +680,9 @@ void phy_procedures_gNB_uespec_RX(PHY_VARS_gNB *gNB, int frame_rx, int slot_rx)
   // figure out a better way to choose slot_rx, 19 is ok for a particular TDD configuration with 30kHz SCS
   if ((frame_rx&127) == 0 && slot_rx==19) dump_pusch_stats(gNB);
 
+  if (pucch_decode_done || pusch_decode_done) {
+    T(T_GNB_PHY_PUCCH_PUSCH_IQ, T_INT(frame_rx), T_INT(slot_rx), T_BUFFER(&gNB->common_vars.rxdataF[0][0], gNB->frame_parms.symbols_per_slot * gNB->frame_parms.ofdm_symbol_size * 4));
+  }
+
   VCD_SIGNAL_DUMPER_DUMP_FUNCTION_BY_NAME(VCD_SIGNAL_DUMPER_FUNCTIONS_PHY_PROCEDURES_gNB_UESPEC_RX,0);
 }