[dpdk-dev] [PATCH 2/2] mempool/dpaa: optimize phy to virt conversion

[Hemant Agrawal <hemant.agrawal@nxp.com>]

If the allocation is from a single memzone, optimize
the phy-virt address conversions.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 drivers/mempool/dpaa/dpaa_mempool.c | 18 +++++++++++++++---
 drivers/mempool/dpaa/dpaa_mempool.h |  9 +++++++++
 2 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/drivers/mempool/dpaa/dpaa_mempool.c b/drivers/mempool/dpaa/dpaa_mempool.c
index f5ee80f..ac3e4ac 100644
--- a/drivers/mempool/dpaa/dpaa_mempool.c
+++ b/drivers/mempool/dpaa/dpaa_mempool.c
@@ -99,6 +99,7 @@ dpaa_mbuf_create_pool(struct rte_mempool *mp)
 	rte_dpaa_bpid_info[bpid].meta_data_size =
 		sizeof(struct rte_mbuf) + rte_pktmbuf_priv_size(mp);
 	rte_dpaa_bpid_info[bpid].dpaa_ops_index = mp->ops_index;
+	rte_dpaa_bpid_info[bpid].ptov_off = 0;
 
 	bp_info = rte_malloc(NULL,
 			     sizeof(struct dpaa_bp_info),
@@ -171,9 +172,20 @@ dpaa_mbuf_free_bulk(struct rte_mempool *pool,
 	}
 
 	while (i < n) {
+		uint64_t phy = rte_mempool_virt2iova(obj_table[i]);
+
+		if (unlikely(!bp_info->ptov_off)) {
+			/* buffers are not from multiple memzones */
+			if (!(bp_info->mp->flags & MEMPOOL_F_MULTI_MEMZONE)) {
+				bp_info->ptov_off
+						= (uint64_t)obj_table[i] - phy;
+				rte_dpaa_bpid_info[bp_info->bpid].ptov_off
+						= bp_info->ptov_off;
+			}
+		}
+
 		dpaa_buf_free(bp_info,
-			      (uint64_t)rte_mempool_virt2iova(obj_table[i]) +
-			      bp_info->meta_data_size);
+			      (uint64_t)phy + bp_info->meta_data_size);
 		i = i + 1;
 	}
 
@@ -241,7 +253,7 @@ dpaa_mbuf_alloc_bulk(struct rte_mempool *pool,
 			 * i.e. first buffer is valid, remaining 6 buffers
 			 * may be null.
 			 */
-			bufaddr = (void *)rte_dpaa_mem_ptov(bufs[i].addr);
+			bufaddr = DPAA_MEMPOOL_PTOV(bp_info, bufs[i].addr);
 			m[n] = (struct rte_mbuf *)((char *)bufaddr
 						- bp_info->meta_data_size);
 			DPAA_MEMPOOL_DPDEBUG("Paddr (%p), FD (%p) from BMAN",
diff --git a/drivers/mempool/dpaa/dpaa_mempool.h b/drivers/mempool/dpaa/dpaa_mempool.h
index 6795859..8160af6 100644
--- a/drivers/mempool/dpaa/dpaa_mempool.h
+++ b/drivers/mempool/dpaa/dpaa_mempool.h
@@ -61,8 +61,17 @@ struct dpaa_bp_info {
 	uint32_t size;
 	uint32_t meta_data_size;
 	int32_t dpaa_ops_index;
+	int64_t ptov_off;
 };
 
+static inline void *
+DPAA_MEMPOOL_PTOV(struct dpaa_bp_info *bp_info, uint64_t addr)
+{
+	if (bp_info->ptov_off)
+		return ((void *)(addr + bp_info->ptov_off));
+	return rte_dpaa_mem_ptov(addr);
+}
+
 #define DPAA_MEMPOOL_TO_POOL_INFO(__mp) \
 	((struct dpaa_bp_info *)__mp->pool_data)
 
-- 
2.7.4