[v1,2/2] examples/packet_ordering: add ring callback
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Commit Message
update example with ring register-unregister for
enqueue-dequeue callabck.
Signed-off-by: Vipin Varghese <vipin.varghese@intel.com>
---
examples/packet_ordering/Makefile | 1 +
examples/packet_ordering/main.c | 40 ++++++++++++++++++++++++++++
examples/packet_ordering/meson.build | 1 +
3 files changed, 42 insertions(+)
@@ -50,6 +50,7 @@ include $(RTE_SDK)/mk/rte.vars.mk
CFLAGS += -O3
CFLAGS += $(WERROR_FLAGS)
+CFLAGS += -DALLOW_EXPERIMENTAL_API
include $(RTE_SDK)/mk/rte.extapp.mk
endif
@@ -71,6 +71,28 @@ volatile struct app_stats {
} tx __rte_cache_aligned;
} app_stats;
+#ifdef RTE_RING_ENQDEQ_CALLBACKS
+unsigned int dump_ring(__rte_unused struct rte_ring *r,
+ __rte_unused void *obj_table,
+ __rte_unused unsigned int n,
+ __rte_unused void *cb_arg);
+
+unsigned int dump_ring(__rte_unused struct rte_ring *r,
+ __rte_unused void *obj_table,
+ __rte_unused unsigned int n,
+ __rte_unused void *cb_arg)
+{
+
+#if 0
+ if (likely(n))
+ printf(" ring (%p) obj (%p) n (%u)\n",
+ r, obj_table, n);
+#endif
+
+ return n;
+}
+#endif
+
/**
* Get the last enabled lcore ID
*
@@ -699,6 +721,15 @@ main(int argc, char **argv)
worker_args.ring_in = rx_to_workers;
worker_args.ring_out = workers_to_tx;
+#ifdef RTE_RING_ENQDEQ_CALLBACKS
+ if (rte_ring_preenq_callback_register(rte_ring_lookup("rx_to_workers"),
+ dump_ring, NULL))
+ printf("failed preenq_callback_register - rx_to_workers\n");
+ if (rte_ring_pstdeq_callback_register(rte_ring_lookup("workers_to_tx"),
+ dump_ring, NULL))
+ printf("failed pstdeq_callback_register - rx_to_workers\n");
+#endif
+
/* Start worker_thread() on all the available slave cores but the last 1 */
for (lcore_id = 0; lcore_id <= get_previous_lcore_id(last_lcore_id); lcore_id++)
if (rte_lcore_is_enabled(lcore_id) && lcore_id != master_lcore_id)
@@ -724,6 +755,15 @@ main(int argc, char **argv)
return -1;
}
+#ifdef RTE_RING_ENQDEQ_CALLBACKS
+ if (rte_ring_preenq_callback_unregister(
+ rte_ring_lookup("rx_to_workers"), dump_ring, NULL))
+ printf("failed preenq_callback_unregister - rx_to_workers\n");
+ if (rte_ring_pstdeq_callback_unregister(
+ rte_ring_lookup("workers_to_tx"), dump_ring, NULL))
+ printf("failed pstdeq_callback_unregister - rx_to_workers\n");
+#endif
+
print_stats();
return 0;
}
@@ -7,6 +7,7 @@
# DPDK instance, use 'make'
deps += 'reorder'
+allow_experimental_apis = true
sources = files(
'main.c'
)