bbr: исправить отображение сырых BW-значений (bw_latest/bw_lo/bw_hi) с /125 на /2097

BW_RAW_TO_KBPS = bw_raw * 8000 / BW_UNIT = bw_raw / 2097.152
pacing_rate / 125 остаётся без изменений (уже в bytes/sec после bbr_rate_bytes_per_sec)

tests/bbr_integration/test_bbr_integration.c

@@ -52,6 +52,9 @@
 #define EMU_LOSS_PERM    50     /* 5% */
 #define EMU_QUEUE_PKTS   65     /* ~100KB at MTU 1400-1600 */
 
+/* Convert raw BBR bandwidth (BW_UNIT * bytes / usec) to kbps */
+#define BW_RAW_TO_KBPS(bw) ((double)(bw) / 2097.152)
+
 /* ===== BBR name helpers ===== */
 static const char* bbr_mode_name(uint8_t m) {
     switch (m) {
@@ -237,8 +240,8 @@ static void print_metrics(struct test_ctx* ctx) {
             inlo_kb     = (double)b->inflight_lo / 1024.0;
             pace_kbps   = (double)l->bbr_pacing_rate / 125.0;
             rtt_ms      = (double)b->min_rtt_us / 1000.0;
-            bw_latest_k = (double)b->bw_latest / 125.0;
-            bw_lo_k     = (double)b->bw_lo / 125.0;
+            bw_latest_k = BW_RAW_TO_KBPS(b->bw_latest);
+            bw_lo_k     = BW_RAW_TO_KBPS(b->bw_lo);
             round_start = b->round_start;
             deliv_k     = (double)b->delivered / 1024.0;
             full_bw     = b->full_bw_reached;
@@ -455,7 +458,7 @@ int main(void) {
                            " minrtt=%.1fms bw_hi=%.0fK bw_lo=%.0fK pace=%.0fK infl_hi=%.1fK infl_lo=%.1fK\n",
                            l->bbr->mode, l->bbr->cycle_idx, l->bbr->full_bw_reached, l->bbr->loss_in_round,
                            (double)l->bbr->min_rtt_us / 1000.0,
-                           (double)l->bbr->bw_hi[0] / 125.0, (double)l->bbr->bw_lo / 125.0,
+                            (double)l->bbr->bw_hi[0] / 2097.152, (double)l->bbr->bw_lo / 2097.152,
                            (double)l->bbr_pacing_rate / 125.0,
                            (double)l->bbr->inflight_hi / 1024.0, (double)l->bbr->inflight_lo / 1024.0);
                 l = l->next;