[dpdk-dev] [PATCH 3/4] event/octeontx2: reduce chunk pool memory usage
pbhagavatula at marvell.com
pbhagavatula at marvell.com
Thu Feb 25 13:23:13 CET 2021
From: Pavan Nikhilesh <pbhagavatula at marvell.com>
Reduce amount of memory used by chunk pool when the mempool used
is OCTEONTX2 NPA.
Signed-off-by: Pavan Nikhilesh <pbhagavatula at marvell.com>
---
drivers/event/octeontx2/otx2_tim_evdev.c | 19 ++++++++++---------
drivers/event/octeontx2/otx2_tim_evdev.h | 4 ++--
2 files changed, 12 insertions(+), 11 deletions(-)
diff --git a/drivers/event/octeontx2/otx2_tim_evdev.c b/drivers/event/octeontx2/otx2_tim_evdev.c
index d1e967eb7..4fb002ddb 100644
--- a/drivers/event/octeontx2/otx2_tim_evdev.c
+++ b/drivers/event/octeontx2/otx2_tim_evdev.c
@@ -91,6 +91,8 @@ tim_chnk_pool_create(struct otx2_tim_ring *tim_ring,
if (cache_sz > RTE_MEMPOOL_CACHE_MAX_SIZE)
cache_sz = RTE_MEMPOOL_CACHE_MAX_SIZE;
+ cache_sz = cache_sz != 0 ? cache_sz : 2;
+ tim_ring->nb_chunks += (cache_sz * rte_lcore_count());
if (!tim_ring->disable_npa) {
tim_ring->chunk_pool = rte_mempool_create_empty(pool_name,
tim_ring->nb_chunks, tim_ring->chunk_sz,
@@ -268,16 +270,15 @@ otx2_tim_ring_create(struct rte_event_timer_adapter *adptr)
}
}
- tim_ring->nb_chunks = tim_ring->nb_timers / OTX2_TIM_NB_CHUNK_SLOTS(
- tim_ring->chunk_sz);
- tim_ring->nb_chunk_slots = OTX2_TIM_NB_CHUNK_SLOTS(tim_ring->chunk_sz);
-
- if (tim_ring->disable_npa)
+ if (tim_ring->disable_npa) {
+ tim_ring->nb_chunks =
+ tim_ring->nb_timers /
+ OTX2_TIM_NB_CHUNK_SLOTS(tim_ring->chunk_sz);
tim_ring->nb_chunks = tim_ring->nb_chunks * tim_ring->nb_bkts;
- else
- tim_ring->nb_chunks = tim_ring->nb_chunks + tim_ring->nb_bkts;
-
- /* Create buckets. */
+ } else {
+ tim_ring->nb_chunks = tim_ring->nb_timers;
+ }
+ tim_ring->nb_chunk_slots = OTX2_TIM_NB_CHUNK_SLOTS(tim_ring->chunk_sz);
tim_ring->bkt = rte_zmalloc("otx2_tim_bucket", (tim_ring->nb_bkts) *
sizeof(struct otx2_tim_bkt),
RTE_CACHE_LINE_SIZE);
diff --git a/drivers/event/octeontx2/otx2_tim_evdev.h b/drivers/event/octeontx2/otx2_tim_evdev.h
index bf89b85b0..2a3b84a43 100644
--- a/drivers/event/octeontx2/otx2_tim_evdev.h
+++ b/drivers/event/octeontx2/otx2_tim_evdev.h
@@ -65,12 +65,12 @@
#define OTX2_MAX_TIM_RINGS (256)
#define OTX2_TIM_MAX_BUCKETS (0xFFFFF)
-#define OTX2_TIM_RING_DEF_CHUNK_SZ (4096)
+#define OTX2_TIM_RING_DEF_CHUNK_SZ (1024)
#define OTX2_TIM_CHUNK_ALIGNMENT (16)
#define OTX2_TIM_MAX_BURST (RTE_CACHE_LINE_SIZE / \
OTX2_TIM_CHUNK_ALIGNMENT)
#define OTX2_TIM_NB_CHUNK_SLOTS(sz) (((sz) / OTX2_TIM_CHUNK_ALIGNMENT) - 1)
-#define OTX2_TIM_MIN_CHUNK_SLOTS (0x1)
+#define OTX2_TIM_MIN_CHUNK_SLOTS (0x3F)
#define OTX2_TIM_MAX_CHUNK_SLOTS (0x1FFE)
#define OTX2_TIM_MIN_TMO_TKS (256)
--
2.17.1
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