X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fmempool%2Fdpaa2%2Fdpaa2_hw_mempool.c;h=7d0435f51887ead8312b2ab0483a0f817abfbc9b;hb=23150bd8d8a8;hp=ce7a4c577fec301799fdf8dd3f189fc4944afe9a;hpb=3646ccf0b03688333cffee2fc94e36f47feb5ef1;p=dpdk.git

diff --git a/drivers/mempool/dpaa2/dpaa2_hw_mempool.c b/drivers/mempool/dpaa2/dpaa2_hw_mempool.c
index ce7a4c577f..7d0435f518 100644
--- a/drivers/mempool/dpaa2/dpaa2_hw_mempool.c
+++ b/drivers/mempool/dpaa2/dpaa2_hw_mempool.c
@@ -21,6 +21,7 @@
 #include <rte_cycles.h>
 #include <rte_kvargs.h>
 #include <rte_dev.h>
+#include "rte_dpaa2_mempool.h"
 
 #include <fslmc_logs.h>
 #include <mc/fsl_dpbp.h>
@@ -32,6 +33,13 @@
 struct dpaa2_bp_info rte_dpaa2_bpid_info[MAX_BPID];
 static struct dpaa2_bp_list *h_bp_list;
 
+/* List of all the memseg information locally maintained in dpaa2 driver. This
+ * is to optimize the PA_to_VA searches until a better mechanism (algo) is
+ * available.
+ */
+struct dpaa2_memseg_list rte_dpaa2_memsegs
+	= TAILQ_HEAD_INITIALIZER(rte_dpaa2_memsegs);
+
 /* Dynamic logging identified for mempool */
 int dpaa2_logtype_mempool;
 
@@ -237,6 +245,35 @@ aligned:
 	}
 }
 
+uint16_t
+rte_dpaa2_mbuf_pool_bpid(struct rte_mempool *mp)
+{
+	struct dpaa2_bp_info *bp_info;
+
+	bp_info = mempool_to_bpinfo(mp);
+	if (!(bp_info->bp_list)) {
+		RTE_LOG(ERR, PMD, "DPAA2 buffer pool not configured\n");
+		return -ENOMEM;
+	}
+
+	return bp_info->bpid;
+}
+
+struct rte_mbuf *
+rte_dpaa2_mbuf_from_buf_addr(struct rte_mempool *mp, void *buf_addr)
+{
+	struct dpaa2_bp_info *bp_info;
+
+	bp_info = mempool_to_bpinfo(mp);
+	if (!(bp_info->bp_list)) {
+		RTE_LOG(ERR, PMD, "DPAA2 buffer pool not configured\n");
+		return NULL;
+	}
+
+	return (struct rte_mbuf *)((uint8_t *)buf_addr -
+			bp_info->meta_data_size);
+}
+
 int
 rte_dpaa2_mbuf_alloc_bulk(struct rte_mempool *pool,
 			  void **obj_table, unsigned int count)
@@ -358,6 +395,41 @@ rte_hw_mbuf_get_count(const struct rte_mempool *mp)
 	return num_of_bufs;
 }
 
+static int
+dpaa2_populate(struct rte_mempool *mp, unsigned int max_objs,
+	      void *vaddr, rte_iova_t paddr, size_t len,
+	      rte_mempool_populate_obj_cb_t *obj_cb, void *obj_cb_arg)
+{
+	struct dpaa2_memseg *ms;
+
+	/* For each memory chunk pinned to the Mempool, a linked list of the
+	 * contained memsegs is created for searching when PA to VA
+	 * conversion is required.
+	 */
+	ms = rte_zmalloc(NULL, sizeof(struct dpaa2_memseg), 0);
+	if (!ms) {
+		DPAA2_MEMPOOL_ERR("Unable to allocate internal memory.");
+		DPAA2_MEMPOOL_WARN("Fast Physical to Virtual Addr translation would not be available.");
+		/* If the element is not added, it would only lead to failure
+		 * in searching for the element and the logic would Fallback
+		 * to traditional DPDK memseg traversal code. So, this is not
+		 * a blocking error - but, error would be printed on screen.
+		 */
+		return 0;
+	}
+
+	ms->vaddr = vaddr;
+	ms->iova = paddr;
+	ms->len = len;
+	/* Head insertions are generally faster than tail insertions as the
+	 * buffers pinned are picked from rear end.
+	 */
+	TAILQ_INSERT_HEAD(&rte_dpaa2_memsegs, ms, next);
+
+	return rte_mempool_op_populate_default(mp, max_objs, vaddr, paddr, len,
+					       obj_cb, obj_cb_arg);
+}
+
 struct rte_mempool_ops dpaa2_mpool_ops = {
 	.name = DPAA2_MEMPOOL_OPS_NAME,
 	.alloc = rte_hw_mbuf_create_pool,
@@ -365,13 +437,12 @@ struct rte_mempool_ops dpaa2_mpool_ops = {
 	.enqueue = rte_hw_mbuf_free_bulk,
 	.dequeue = rte_dpaa2_mbuf_alloc_bulk,
 	.get_count = rte_hw_mbuf_get_count,
+	.populate = dpaa2_populate,
 };
 
 MEMPOOL_REGISTER_OPS(dpaa2_mpool_ops);
 
-RTE_INIT(dpaa2_mempool_init_log);
-static void
-dpaa2_mempool_init_log(void)
+RTE_INIT(dpaa2_mempool_init_log)
 {
 	dpaa2_logtype_mempool = rte_log_register("mempool.dpaa2");
 	if (dpaa2_logtype_mempool >= 0)