[dpdk-dev] [RFC PATCH v2 3/3] app/test-pmd: add support for bitrate statistics

[Remy Horton]

Signed-off-by: Remy Horton <remy.horton at intel.com>
---
 app/test-pmd/testpmd.c | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index e2403c3..940dc3b 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -78,6 +78,8 @@
 #ifdef RTE_LIBRTE_PDUMP
 #include <rte_pdump.h>
 #endif
+#include <rte_metrics.h>
+#include <rte_bitrate.h>

 #include "testpmd.h"

@@ -322,6 +324,9 @@ uint16_t nb_rx_queue_stats_mappings = 0;

 unsigned max_socket = 0;

+/* Bitrate statistics */
+struct rte_stats_bitrates_s *bitrate_data;
+
 /* Forward function declarations */
 static void map_port_queue_stats_mapping_registers(uint8_t pi, struct rte_port 
*port);
 static void check_all_ports_link_status(uint32_t port_mask);
@@ -921,12 +926,26 @@ run_pkt_fwd_on_lcore(struct fwd_lcore *fc, packet_fwd_t 
pkt_fwd)
        struct fwd_stream **fsm;
        streamid_t nb_fs;
        streamid_t sm_id;
-
+       uint64_t tics_per_1sec;
+       uint64_t tics_datum;
+       uint64_t tics_current;
+       uint8_t idx_port, cnt_ports;
+
+       cnt_ports = rte_eth_dev_count();
+       tics_datum = rte_rdtsc();
+       tics_per_1sec = rte_get_timer_hz();
        fsm = &fwd_streams[fc->stream_idx];
        nb_fs = fc->stream_nb;
        do {
                for (sm_id = 0; sm_id < nb_fs; sm_id++)
                        (*pkt_fwd)(fsm[sm_id]);
+               tics_current = rte_rdtsc();
+               if (tics_current - tics_datum >= tics_per_1sec) {
+                       /* Periodic bitrate calculation */
+                       for (idx_port = 0; idx_port < cnt_ports; idx_port++)
+                               rte_stats_bitrate_calc(bitrate_data, idx_port);
+                       tics_datum = tics_current;
+               }
        } while (! fc->stopped);
 }

@@ -2119,6 +2138,15 @@ main(int argc, char** argv)
        FOREACH_PORT(port_id, ports)
                rte_eth_promiscuous_enable(port_id);

+       /* Setup bitrate stats */
+       bitrate_data = rte_stats_bitrate_create();
+       if (bitrate_data == NULL)
+               rte_exit(EXIT_FAILURE, "Could not allocate bitrate data.\n");
+       rte_stats_bitrate_reg(bitrate_data);
+       int id_const = rte_metrics_reg_metric("constant");
+       rte_metrics_update_metric(55, id_const, 0xdeadbeef);
+
+
 #ifdef RTE_LIBRTE_CMDLINE
        if (interactive == 1) {
                if (auto_start) {
-- 
2.5.5