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diff --git a/sys/net/iflib.h b/sys/net/iflib.h
--- a/sys/net/iflib.h
+++ b/sys/net/iflib.h
@@ -503,4 +503,10 @@
int rid, iflib_intr_type_t type,
driver_filter_t *filter, void *filter_arg,
int qid, const char *name);
+
+/*
+ * iflib managed counters support
+ */
+uint64_t iflib_if_get_counter_default(if_ctx_t ctx, ift_counter cnt);
+
#endif /* __IFLIB_H_ */
diff --git a/sys/net/iflib.c b/sys/net/iflib.c
--- a/sys/net/iflib.c
+++ b/sys/net/iflib.c
@@ -708,6 +708,7 @@
static void iflib_altq_if_start(if_t ifp);
static int iflib_altq_if_transmit(if_t ifp, struct mbuf *m);
#endif
+static void iflib_save_stats(if_ctx_t);
static int iflib_register(if_ctx_t);
static void iflib_deregister(if_ctx_t);
static void iflib_unregister_vlan_handlers(if_ctx_t ctx);
@@ -2612,6 +2613,7 @@
netmap_disable_all_rings(ctx->ifc_ifp);
iflib_debug_reset();
+ iflib_save_stats(ctx);
/* Wait for current tx queue users to exit to disarm watchdog timer. */
for (i = 0; i < scctx->isc_ntxqsets; i++, txq++) {
/* make sure all transmitters have completed before proceeding XXX */
@@ -4648,6 +4650,37 @@
return (IFDI_GET_COUNTER(ctx, cnt));
}
+uint64_t
+iflib_if_get_counter_default(if_ctx_t ctx, ift_counter cnt)
+{
+ if_t ifp = ctx->ifc_ifp;
+
+ if (cnt == IFCOUNTER_OQDROPS) {
+ uint64_t drops = 0;
+ iflib_txq_t txq = ctx->ifc_txqs;
+
+ for (int i = 0; i < ctx->ifc_softc_ctx.isc_ntxqsets; i++, txq++) {
+ drops += counter_u64_fetch(txq->ift_br->drops);
+ }
+ return (drops + if_get_counter_default(ifp, cnt));
+ }
+
+ return (if_get_counter_default(ifp, cnt));
+}
+
+static void
+iflib_save_stats(if_ctx_t ctx)
+{
+ /* Currenly only save out dropped packets */
+ uint64_t drops = 0;
+ iflib_txq_t txq = ctx->ifc_txqs;
+
+ for (int i = 0; i < ctx->ifc_softc_ctx.isc_ntxqsets; i++, txq++)
+ drops += counter_u64_fetch(txq->ift_br->drops);
+
+ if_inc_counter(ctx->ifc_ifp, IFCOUNTER_OQDROPS, drops);
+}
+
/*********************************************************************
*
* OTHER FUNCTIONS EXPORTED TO THE STACK

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