[dpdk-dev] [PATCH v4 13/13] port: added port_sink stats

[Michal Jastrzebski]

From: Maciej Gajdzica <maciejx.t.gajdz...@intel.com>

Added statistics for sink port.

Signed-off-by: Maciej Gajdzica <maciejx.t.gajdzica at intel.com>
---
 lib/librte_port/rte_port_source_sink.c |   63 ++++++++++++++++++++++++++++++--
 1 file changed, 59 insertions(+), 4 deletions(-)

diff --git a/lib/librte_port/rte_port_source_sink.c 
b/lib/librte_port/rte_port_source_sink.c
index 234ab18..0a70228 100644
--- a/lib/librte_port/rte_port_source_sink.c
+++ b/lib/librte_port/rte_port_source_sink.c
@@ -133,28 +133,64 @@ rte_port_source_stats_read(void *port,
 /*
  * Port SINK
  */
+#ifdef RTE_PORT_STATS_COLLECT
+
+#define RTE_PORT_SINK_STATS_PKTS_IN_ADD(port, val) \
+       port->stats.n_pkts_in += val
+#define RTE_PORT_SINK_STATS_PKTS_DROP_ADD(port, val) \
+       port->stats.n_pkts_drop += val
+
+#else
+
+#define RTE_PORT_SINK_STATS_PKTS_IN_ADD(port, val)
+#define RTE_PORT_SINK_STATS_PKTS_DROP_ADD(port, val)
+
+#endif
+
+struct rte_port_sink {
+       struct rte_port_out_stats stats;
+};
+
 static void *
-rte_port_sink_create(__rte_unused void *params, __rte_unused int socket_id)
+rte_port_sink_create(__rte_unused void *params, int socket_id)
 {
-       return (void *) 1;
+       struct rte_port_sink *port;
+
+       /* Memory allocation */
+       port = rte_zmalloc_socket("PORT", sizeof(*port),
+                       RTE_CACHE_LINE_SIZE, socket_id);
+       if (port == NULL) {
+               RTE_LOG(ERR, PORT, "%s: Failed to allocate port\n", __func__);
+               return NULL;
+       }
+
+       return port;
 }

 static int
-rte_port_sink_tx(__rte_unused void *port, struct rte_mbuf *pkt)
+rte_port_sink_tx(void *port, struct rte_mbuf *pkt)
 {
+       __rte_unused struct rte_port_sink *p = (struct rte_port_sink *) port;
+
+       RTE_PORT_SINK_STATS_PKTS_IN_ADD(p, 1);
        rte_pktmbuf_free(pkt);
+       RTE_PORT_SINK_STATS_PKTS_DROP_ADD(p, 1);

        return 0;
 }

 static int
-rte_port_sink_tx_bulk(__rte_unused void *port, struct rte_mbuf **pkts,
+rte_port_sink_tx_bulk(void *port, struct rte_mbuf **pkts,
        uint64_t pkts_mask)
 {
+       __rte_unused struct rte_port_sink *p = (struct rte_port_sink *) port;
+
        if ((pkts_mask & (pkts_mask + 1)) == 0) {
                uint64_t n_pkts = __builtin_popcountll(pkts_mask);
                uint32_t i;

+               RTE_PORT_SINK_STATS_PKTS_IN_ADD(p, n_pkts);
+               RTE_PORT_SINK_STATS_PKTS_DROP_ADD(p, n_pkts);
                for (i = 0; i < n_pkts; i++) {
                        struct rte_mbuf *pkt = pkts[i];

@@ -166,6 +202,8 @@ rte_port_sink_tx_bulk(__rte_unused void *port, struct 
rte_mbuf **pkts,
                        uint64_t pkt_mask = 1LLU << pkt_index;
                        struct rte_mbuf *pkt = pkts[pkt_index];

+                       RTE_PORT_SINK_STATS_PKTS_IN_ADD(p, 1);
+                       RTE_PORT_SINK_STATS_PKTS_DROP_ADD(p, 1);
                        rte_pktmbuf_free(pkt);
                        pkts_mask &= ~pkt_mask;
                }
@@ -174,6 +212,22 @@ rte_port_sink_tx_bulk(__rte_unused void *port, struct 
rte_mbuf **pkts,
        return 0;
 }

+static int
+rte_port_sink_stats_read(void *port, struct rte_port_out_stats *stats,
+               int clear)
+{
+       struct rte_port_sink *p =
+               (struct rte_port_sink *) port;
+
+       if (stats != NULL)
+               memcpy(stats, &p->stats, sizeof(p->stats));
+
+       if (clear)
+               memset(&p->stats, 0, sizeof(p->stats));
+
+       return 0;
+}
+
 /*
  * Summary of port operations
  */
@@ -190,4 +244,5 @@ struct rte_port_out_ops rte_port_sink_ops = {
        .f_tx = rte_port_sink_tx,
        .f_tx_bulk = rte_port_sink_tx_bulk,
        .f_flush = NULL,
+       .f_stats = rte_port_sink_stats_read,
 };
-- 
1.7.9.5