event/cnxk: add timer adapter periodic mode support

Add support for event timer adapter periodic mode capability.

Signed-off-by: Shijith Thotton <sthotton@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>

diff --git a/drivers/event/cnxk/cnxk_tim_evdev.c b/drivers/event/cnxk/cnxk_tim_evdev.c
index 5d52a3975288a74d377fdd8bbe715a1c90da111c..4d22ac6ac392723fc5563fc0096a5da3d5ab0b33 100644 (file)
--- a/drivers/event/cnxk/cnxk_tim_evdev.c
+++ b/drivers/event/cnxk/cnxk_tim_evdev.c
@@ -58,7 +58,7 @@ cnxk_tim_chnk_pool_create(struct cnxk_tim_ring *tim_ring,
                }
                tim_ring->aura = roc_npa_aura_handle_to_aura(
                        tim_ring->chunk_pool->pool_id);
-               tim_ring->ena_dfb = 0;
+               tim_ring->ena_dfb = tim_ring->ena_periodic ? 1 : 0;
        } else {
                tim_ring->chunk_pool = rte_mempool_create(
                        pool_name, tim_ring->nb_chunks, tim_ring->chunk_sz,
@@ -112,7 +112,9 @@ cnxk_tim_ring_info_get(const struct rte_event_timer_adapter *adptr,
        struct cnxk_tim_ring *tim_ring = adptr->data->adapter_priv;
 
        adptr_info->max_tmo_ns = tim_ring->max_tout;
-       adptr_info->min_resolution_ns = tim_ring->tck_nsec;
+       adptr_info->min_resolution_ns = tim_ring->ena_periodic ?
+                                               tim_ring->max_tout :
+                                               tim_ring->tck_nsec;
        rte_memcpy(&adptr_info->conf, &adptr->data->conf,
                   sizeof(struct rte_event_timer_adapter_conf));
 }
@@ -237,6 +239,12 @@ cnxk_tim_ring_create(struct rte_event_timer_adapter *adptr)
                goto tim_hw_free;
        }
 
+       if (rcfg->flags & RTE_EVENT_TIMER_ADAPTER_F_PERIODIC) {
+               /* Use 2 buckets to avoid contention */
+               rcfg->timer_tick_ns /= 2;
+               tim_ring->ena_periodic = 1;
+       }
+
        if (rcfg->timer_tick_ns < min_intvl_ns) {
                if (rcfg->flags & RTE_EVENT_TIMER_ADAPTER_F_ADJUST_RES) {
                        rcfg->timer_tick_ns = min_intvl_ns;
@@ -246,6 +254,9 @@ cnxk_tim_ring_create(struct rte_event_timer_adapter *adptr)
                }
        }
 
+       if (tim_ring->ena_periodic)
+               rcfg->max_tmo_ns = rcfg->timer_tick_ns * 2;
+
        if (rcfg->timer_tick_ns > rcfg->max_tmo_ns) {
                plt_err("Max timeout to too high");
                rc = -ERANGE;
@@ -322,7 +333,8 @@ cnxk_tim_ring_create(struct rte_event_timer_adapter *adptr)
        if (rc < 0)
                goto tim_bkt_free;
 
-       rc = roc_tim_lf_config(&dev->tim, tim_ring->ring_id, clk_src, 0, 0,
+       rc = roc_tim_lf_config(&dev->tim, tim_ring->ring_id, clk_src,
+                              tim_ring->ena_periodic, tim_ring->ena_dfb,
                               tim_ring->nb_bkts, tim_ring->chunk_sz,
                               tim_ring->tck_int, tim_ring->tck_nsec, clk_freq);
        if (rc < 0) {
@@ -493,7 +505,8 @@ cnxk_tim_caps_get(const struct rte_eventdev *evdev, uint64_t flags,
 
        /* Store evdev pointer for later use. */
        dev->event_dev = (struct rte_eventdev *)(uintptr_t)evdev;
-       *caps = RTE_EVENT_TIMER_ADAPTER_CAP_INTERNAL_PORT;
+       *caps = RTE_EVENT_TIMER_ADAPTER_CAP_INTERNAL_PORT |
+               RTE_EVENT_TIMER_ADAPTER_CAP_PERIODIC;
        *ops = &cnxk_tim_ops;
 
        return 0;

diff --git a/drivers/event/cnxk/cnxk_tim_evdev.h b/drivers/event/cnxk/cnxk_tim_evdev.h
index 6b5342cc34d4ac79c9b53f0eac67169fa4cde735..91a90ee2ce0bb3052e478c5d1adf30ed9d82eedc 100644 (file)
--- a/drivers/event/cnxk/cnxk_tim_evdev.h
+++ b/drivers/event/cnxk/cnxk_tim_evdev.h
@@ -135,6 +135,7 @@ struct cnxk_tim_ring {
        uint8_t enable_stats;
        uint8_t disable_npa;
        uint8_t ena_dfb;
+       uint8_t ena_periodic;
        uint16_t ring_id;
        uint32_t aura;
        uint64_t nb_timers;