[PATCH v3 8/8] mempool/dpaax: cache free optimization

[vanshika.shukla@nxp.com]

From: Sachin Saxena <sachin.saxena@nxp.com>

 - Updates the cache threshold value as per
   the platform specific optimal value.

Signed-off-by: Sachin Saxena <sachin.saxena@nxp.com>
Signed-off-by: Vanshika Shukla <vanshika.shukla@nxp.com>
---
 drivers/mempool/dpaa/dpaa_mempool.c      | 16 +++++++++++++++-
 drivers/mempool/dpaa2/dpaa2_hw_mempool.c | 15 +++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/drivers/mempool/dpaa/dpaa_mempool.c b/drivers/mempool/dpaa/dpaa_mempool.c
index 21e8938cc6..9e3a743575 100644
--- a/drivers/mempool/dpaa/dpaa_mempool.c
+++ b/drivers/mempool/dpaa/dpaa_mempool.c
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: BSD-3-Clause
  *
- *   Copyright 2017,2019 NXP
+ *   Copyright 2017,2019,2023 NXP
  *
  */
 
@@ -51,6 +51,8 @@ dpaa_mbuf_create_pool(struct rte_mempool *mp)
 	struct bman_pool_params params = {
 		.flags = BMAN_POOL_FLAG_DYNAMIC_BPID
 	};
+	unsigned int lcore_id;
+	struct rte_mempool_cache *cache;
 
 	MEMPOOL_INIT_FUNC_TRACE();
 
@@ -118,6 +120,18 @@ dpaa_mbuf_create_pool(struct rte_mempool *mp)
 	rte_memcpy(bp_info, (void *)&rte_dpaa_bpid_info[bpid],
 		   sizeof(struct dpaa_bp_info));
 	mp->pool_data = (void *)bp_info;
+	/* Update per core mempool cache threshold to optimal value which is
+	 * number of buffers that can be released to HW buffer pool in
+	 * a single API call.
+	 */
+	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+		cache = &mp->local_cache[lcore_id];
+		DPAA_MEMPOOL_DEBUG("lCore %d: cache->flushthresh %d -> %d\n",
+			lcore_id, cache->flushthresh,
+			(uint32_t)(cache->size + DPAA_MBUF_MAX_ACQ_REL));
+		if (cache->flushthresh)
+			cache->flushthresh = cache->size + DPAA_MBUF_MAX_ACQ_REL;
+	}
 
 	DPAA_MEMPOOL_INFO("BMAN pool created for bpid =%d", bpid);
 	return 0;
diff --git a/drivers/mempool/dpaa2/dpaa2_hw_mempool.c b/drivers/mempool/dpaa2/dpaa2_hw_mempool.c
index 4c9245cb81..fe82475b10 100644
--- a/drivers/mempool/dpaa2/dpaa2_hw_mempool.c
+++ b/drivers/mempool/dpaa2/dpaa2_hw_mempool.c
@@ -44,6 +44,8 @@ rte_hw_mbuf_create_pool(struct rte_mempool *mp)
 	struct dpaa2_bp_info *bp_info;
 	struct dpbp_attr dpbp_attr;
 	uint32_t bpid;
+	unsigned int lcore_id;
+	struct rte_mempool_cache *cache;
 	int ret;
 
 	avail_dpbp = dpaa2_alloc_dpbp_dev();
@@ -132,6 +134,19 @@ rte_hw_mbuf_create_pool(struct rte_mempool *mp)
 	DPAA2_MEMPOOL_DEBUG("BP List created for bpid =%d", dpbp_attr.bpid);
 
 	h_bp_list = bp_list;
+	/* Update per core mempool cache threshold to optimal value which is
+	 * number of buffers that can be released to HW buffer pool in
+	 * a single API call.
+	 */
+	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
+		cache = &mp->local_cache[lcore_id];
+		DPAA2_MEMPOOL_DEBUG("lCore %d: cache->flushthresh %d -> %d\n",
+			lcore_id, cache->flushthresh,
+			(uint32_t)(cache->size + DPAA2_MBUF_MAX_ACQ_REL));
+		if (cache->flushthresh)
+			cache->flushthresh = cache->size + DPAA2_MBUF_MAX_ACQ_REL;
+	}
+
 	return 0;
 err3:
 	rte_free(bp_info);
-- 
2.25.1