event/octeontx: add event timer stats get and reset

Add functions to get and reset event timer adapter stats.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>

diff --git a/doc/guides/eventdevs/octeontx.rst b/doc/guides/eventdevs/octeontx.rst
index 8602865..f77bc5c 100644 (file)
--- a/doc/guides/eventdevs/octeontx.rst
+++ b/doc/guides/eventdevs/octeontx.rst
@@ -99,6 +99,16 @@ The tests are run once the vdev creation is successfully complete.
     --vdev="event_octeontx,self_test=1"
 
 
+Enable TIMvf stats
+------------------
+TIMvf stats can be enabled by using this option, by default the stats are
+disabled.
+
+.. code-block:: console
+
+    --vdev="event_octeontx,timvf_stats=1"
+
+
 Limitations
 -----------
 

diff --git a/drivers/event/octeontx/ssovf_evdev.c b/drivers/event/octeontx/ssovf_evdev.c
index 34496f1..2df70b5 100644 (file)
--- a/drivers/event/octeontx/ssovf_evdev.c
+++ b/drivers/event/octeontx/ssovf_evdev.c
@@ -21,6 +21,7 @@
 #include "timvf_evdev.h"
 
 int otx_logtype_ssovf;
+static uint8_t timvf_enable_stats;
 
 RTE_INIT(otx_ssovf_init_log);
 static void
@@ -606,7 +607,8 @@ static int
 ssovf_timvf_caps_get(const struct rte_eventdev *dev, uint64_t flags,
                uint32_t *caps, const struct rte_event_timer_adapter_ops **ops)
 {
-       return timvf_timer_adapter_caps_get(dev, flags, caps, ops, 0);
+       return timvf_timer_adapter_caps_get(dev, flags, caps, ops,
+                       timvf_enable_stats);
 }
 
 /* Initialize and register event driver with DPDK Application */
@@ -654,6 +656,7 @@ ssovf_vdev_probe(struct rte_vdev_device *vdev)
 
        static const char *const args[] = {
                SSOVF_SELFTEST_ARG,
+               TIMVF_ENABLE_STATS_ARG,
                NULL
        };
 
@@ -681,6 +684,15 @@ ssovf_vdev_probe(struct rte_vdev_device *vdev)
                                rte_kvargs_free(kvlist);
                                return ret;
                        }
+
+                       ret = rte_kvargs_process(kvlist,
+                                       TIMVF_ENABLE_STATS_ARG,
+                                       ssovf_selftest, &timvf_enable_stats);
+                       if (ret != 0) {
+                               ssovf_log_err("%s: Error in timvf stats", name);
+                               rte_kvargs_free(kvlist);
+                               return ret;
+                       }
                }
 
                rte_kvargs_free(kvlist);

diff --git a/drivers/event/octeontx/timvf_evdev.c b/drivers/event/octeontx/timvf_evdev.c
index 84c6a51..c66db43 100644 (file)
--- a/drivers/event/octeontx/timvf_evdev.c
+++ b/drivers/event/octeontx/timvf_evdev.c
@@ -268,6 +268,29 @@ timvf_ring_free(struct rte_event_timer_adapter *adptr)
        return 0;
 }
 
+static int
+timvf_stats_get(const struct rte_event_timer_adapter *adapter,
+               struct rte_event_timer_adapter_stats *stats)
+{
+       struct timvf_ring *timr = adapter->data->adapter_priv;
+       uint64_t bkt_cyc = rte_rdtsc() - timr->ring_start_cyc;
+
+       stats->evtim_exp_count = timr->tim_arm_cnt;
+       stats->ev_enq_count = timr->tim_arm_cnt;
+       stats->adapter_tick_count = rte_reciprocal_divide_u64(bkt_cyc,
+                               &timr->fast_div);
+       return 0;
+}
+
+static int
+timvf_stats_reset(const struct rte_event_timer_adapter *adapter)
+{
+       struct timvf_ring *timr = adapter->data->adapter_priv;
+
+       timr->tim_arm_cnt = 0;
+       return 0;
+}
+
 static struct rte_event_timer_adapter_ops timvf_ops = {
        .init           = timvf_ring_create,
        .uninit         = timvf_ring_free,
@@ -283,7 +306,12 @@ timvf_timer_adapter_caps_get(const struct rte_eventdev *dev, uint64_t flags,
 {
        RTE_SET_USED(dev);
        RTE_SET_USED(flags);
-       RTE_SET_USED(enable_stats);
+
+       if (enable_stats) {
+               timvf_ops.stats_get   = timvf_stats_get;
+               timvf_ops.stats_reset = timvf_stats_reset;
+       }
+
        *caps = RTE_EVENT_TIMER_ADAPTER_CAP_INTERNAL_PORT;
        *ops = &timvf_ops;
        return -EINVAL;

diff --git a/drivers/event/octeontx/timvf_evdev.h b/drivers/event/octeontx/timvf_evdev.h
index 7663dc3..e89a435 100644 (file)
--- a/drivers/event/octeontx/timvf_evdev.h
+++ b/drivers/event/octeontx/timvf_evdev.h
@@ -83,6 +83,8 @@
 #define timvf_read64 rte_read64_relaxed
 #define timvf_write64 rte_write64_relaxed
 
+#define TIMVF_ENABLE_STATS_ARG               ("timvf_stats")
+
 extern int otx_logtype_timvf;
 static const uint16_t nb_chunk_slots = (TIM_CHUNK_SIZE / 16) - 1;
 
@@ -145,6 +147,7 @@ struct timvf_ring {
        struct tim_mem_bucket *bkt;
        void *chunk_pool;
        uint64_t tck_int;
+       volatile uint64_t tim_arm_cnt;
        uint64_t tck_nsec;
        void  *vbar0;
        void *bkt_pos;