[dpdk-dev] [PATCH v4 08/11] event/octeontx: add burst mode for timer arm

[Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>]

Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
---
 drivers/event/octeontx/timvf_evdev.c  |  3 +
 drivers/event/octeontx/timvf_evdev.h  |  7 ++
 drivers/event/octeontx/timvf_worker.c | 53 +++++++++++++++
 drivers/event/octeontx/timvf_worker.h | 95 +++++++++++++++++++++++++++
 4 files changed, 158 insertions(+)

diff --git a/drivers/event/octeontx/timvf_evdev.c b/drivers/event/octeontx/timvf_evdev.c
index 3b698b7c8..b54d8b84f 100644
--- a/drivers/event/octeontx/timvf_evdev.c
+++ b/drivers/event/octeontx/timvf_evdev.c
@@ -327,6 +327,9 @@ timvf_timer_adapter_caps_get(const struct rte_eventdev *dev, uint64_t flags,
 			timvf_timer_arm_burst_mp_stats :
 			timvf_timer_arm_burst_mp;
 
+	timvf_ops.arm_tmo_tick_burst = enable_stats ?
+		timvf_timer_arm_tmo_brst_stats :
+		timvf_timer_arm_tmo_brst;
 	timvf_ops.cancel_burst = timvf_timer_cancel_burst;
 	*caps = RTE_EVENT_TIMER_ADAPTER_CAP_INTERNAL_PORT;
 	*ops = &timvf_ops;
diff --git a/drivers/event/octeontx/timvf_evdev.h b/drivers/event/octeontx/timvf_evdev.h
index 01ffac09a..2e905702f 100644
--- a/drivers/event/octeontx/timvf_evdev.h
+++ b/drivers/event/octeontx/timvf_evdev.h
@@ -207,6 +207,13 @@ uint16_t timvf_timer_arm_burst_mp(const struct rte_event_timer_adapter *adptr,
 uint16_t timvf_timer_arm_burst_mp_stats(
 		const struct rte_event_timer_adapter *adptr,
 		struct rte_event_timer **tim, const uint16_t nb_timers);
+uint16_t timvf_timer_arm_tmo_brst(const struct rte_event_timer_adapter *adptr,
+		struct rte_event_timer **tim, const uint64_t timeout_tick,
+		const uint16_t nb_timers);
+uint16_t timvf_timer_arm_tmo_brst_stats(
+		const struct rte_event_timer_adapter *adptr,
+		struct rte_event_timer **tim, const uint64_t timeout_tick,
+		const uint16_t nb_timers);
 void timvf_set_chunk_refill(struct timvf_ring * const timr);
 
 #endif /* __TIMVF_EVDEV_H__ */
diff --git a/drivers/event/octeontx/timvf_worker.c b/drivers/event/octeontx/timvf_worker.c
index 52b212c44..02e17b6f5 100644
--- a/drivers/event/octeontx/timvf_worker.c
+++ b/drivers/event/octeontx/timvf_worker.c
@@ -137,6 +137,59 @@ timvf_timer_arm_burst_mp_stats(const struct rte_event_timer_adapter *adptr,
 	return ret;
 }
 
+uint16_t
+timvf_timer_arm_tmo_brst(const struct rte_event_timer_adapter *adptr,
+		struct rte_event_timer **tim, const uint64_t timeout_tick,
+		const uint16_t nb_timers)
+{
+	int ret;
+	uint16_t set_timers = 0;
+	uint16_t idx;
+	uint16_t arr_idx = 0;
+	struct timvf_ring *timr = adptr->data->adapter_priv;
+	struct tim_mem_entry entry[TIMVF_MAX_BURST] __rte_cache_aligned;
+
+	if (unlikely(!timeout_tick || timeout_tick >= timr->nb_bkts)) {
+		const enum rte_event_timer_state state = timeout_tick ?
+			RTE_EVENT_TIMER_ERROR_TOOLATE :
+			RTE_EVENT_TIMER_ERROR_TOOEARLY;
+		for (idx = 0; idx < nb_timers; idx++)
+			tim[idx]->state = state;
+		rte_errno = EINVAL;
+		return 0;
+	}
+
+	while (arr_idx < nb_timers) {
+		for (idx = 0; idx < TIMVF_MAX_BURST && (arr_idx < nb_timers);
+				idx++, arr_idx++) {
+			timvf_format_event(tim[arr_idx], &entry[idx]);
+		}
+		ret = timvf_add_entry_brst(timr, timeout_tick, &tim[set_timers],
+				entry, idx);
+		set_timers += ret;
+		if (ret != idx)
+			break;
+	}
+
+	return set_timers;
+}
+
+
+uint16_t
+timvf_timer_arm_tmo_brst_stats(const struct rte_event_timer_adapter *adptr,
+		struct rte_event_timer **tim, const uint64_t timeout_tick,
+		const uint16_t nb_timers)
+{
+	uint16_t set_timers;
+	struct timvf_ring *timr = adptr->data->adapter_priv;
+
+	set_timers = timvf_timer_arm_tmo_brst(adptr, tim, timeout_tick,
+			nb_timers);
+	timr->tim_arm_cnt += set_timers;
+
+	return set_timers;
+}
+
 void
 timvf_set_chunk_refill(struct timvf_ring * const timr)
 {
diff --git a/drivers/event/octeontx/timvf_worker.h b/drivers/event/octeontx/timvf_worker.h
index c3a669de9..93254cd39 100644
--- a/drivers/event/octeontx/timvf_worker.h
+++ b/drivers/event/octeontx/timvf_worker.h
@@ -324,3 +324,98 @@ timvf_add_entry_mp(struct timvf_ring * const timr, const uint32_t rel_bkt,
 	tim->state = RTE_EVENT_TIMER_ARMED;
 	return 0;
 }
+
+static inline uint16_t
+timvf_cpy_wrk(uint16_t index, uint16_t cpy_lmt,
+		struct tim_mem_entry *chunk,
+		struct rte_event_timer ** const tim,
+		const struct tim_mem_entry * const ents,
+		const struct tim_mem_bucket * const bkt)
+{
+	for (; index < cpy_lmt; index++) {
+		*chunk = *(ents + index);
+		tim[index]->impl_opaque[0] = (uintptr_t)chunk++;
+		tim[index]->impl_opaque[1] = (uintptr_t)bkt;
+		tim[index]->state = RTE_EVENT_TIMER_ARMED;
+	}
+
+	return index;
+}
+
+/* Burst mode functions */
+static inline int
+timvf_add_entry_brst(struct timvf_ring * const timr, const uint16_t rel_bkt,
+		struct rte_event_timer ** const tim,
+		const struct tim_mem_entry *ents,
+		const uint16_t nb_timers)
+{
+	int16_t rem;
+	int16_t crem;
+	uint8_t lock_cnt;
+	uint16_t index = 0;
+	uint16_t chunk_remainder;
+	uint64_t lock_sema;
+	struct tim_mem_bucket *bkt;
+	struct tim_mem_entry *chunk;
+
+__retry:
+	bkt = timvf_get_target_bucket(timr, rel_bkt);
+
+	/* Only one thread beyond this. */
+	lock_sema = timr_bkt_inc_lock(bkt);
+	lock_cnt = (uint8_t)
+		((lock_sema >> TIM_BUCKET_W1_S_LOCK) & TIM_BUCKET_W1_M_LOCK);
+
+	if (lock_cnt) {
+		timr_bkt_dec_lock(bkt);
+		goto __retry;
+	}
+
+	/* Bucket related checks. */
+	if (unlikely(timr_bkt_get_hbt(lock_sema))) {
+		timr_bkt_dec_lock(bkt);
+		goto __retry;
+	}
+
+	chunk_remainder = timr_bkt_fetch_rem(lock_sema);
+	rem = chunk_remainder - nb_timers;
+	if (rem < 0) {
+		crem = nb_chunk_slots - chunk_remainder;
+		if (chunk_remainder && crem) {
+			chunk = ((struct tim_mem_entry *)
+					(uintptr_t)bkt->current_chunk) + crem;
+
+			index = timvf_cpy_wrk(index, chunk_remainder,
+					chunk, tim, ents, bkt);
+			timr_bkt_sub_rem(bkt, chunk_remainder);
+			timr_bkt_add_nent(bkt, chunk_remainder);
+		}
+		rem = nb_timers - chunk_remainder;
+		ents = ents + chunk_remainder;
+
+		chunk = timr->refill_chunk(bkt, timr);
+		if (unlikely(chunk == NULL)) {
+			timr_bkt_dec_lock(bkt);
+			rte_errno = ENOMEM;
+			tim[index]->state = RTE_EVENT_TIMER_ERROR;
+			return crem;
+		}
+		*(uint64_t *)(chunk + nb_chunk_slots) = 0;
+		bkt->current_chunk = (uintptr_t) chunk;
+
+		index = timvf_cpy_wrk(index, nb_timers, chunk, tim, ents, bkt);
+		timr_bkt_set_rem(bkt, nb_chunk_slots - rem);
+		timr_bkt_add_nent(bkt, rem);
+	} else {
+		chunk = (struct tim_mem_entry *)(uintptr_t)bkt->current_chunk;
+		chunk += (nb_chunk_slots - chunk_remainder);
+
+		index = timvf_cpy_wrk(index, nb_timers,
+				chunk, tim, ents, bkt);
+		timr_bkt_sub_rem(bkt, nb_timers);
+		timr_bkt_add_nent(bkt, nb_timers);
+	}
+
+	timr_bkt_dec_lock(bkt);
+	return nb_timers;
+}
-- 
2.17.0