mbuf: support attaching external buffer

[dpdk.git] / lib / librte_mempool / rte_mempool_ops_default.c

diff --git a/lib/librte_mempool/rte_mempool_ops_default.c b/lib/librte_mempool/rte_mempool_ops_default.c
index 57fe79b..fd63ca1 100644 (file)
--- a/lib/librte_mempool/rte_mempool_ops_default.c
+++ b/lib/librte_mempool/rte_mempool_ops_default.c
@@ -11,28 +11,41 @@ rte_mempool_op_calc_mem_size_default(const struct rte_mempool *mp,
                                     uint32_t obj_num, uint32_t pg_shift,
                                     size_t *min_chunk_size, size_t *align)
 {
-       unsigned int mp_flags;
-       int ret;
        size_t total_elt_sz;
        size_t mem_size;
 
-       /* Get mempool capabilities */
-       mp_flags = 0;
-       ret = rte_mempool_ops_get_capabilities(mp, &mp_flags);
-       if ((ret < 0) && (ret != -ENOTSUP))
-               return ret;
-
        total_elt_sz = mp->header_size + mp->elt_size + mp->trailer_size;
 
-       mem_size = rte_mempool_xmem_size(obj_num, total_elt_sz, pg_shift,
-                                        mp->flags | mp_flags);
+       mem_size = rte_mempool_calc_mem_size_helper(obj_num, total_elt_sz,
+                                                   pg_shift);
 
-       if (mp_flags & MEMPOOL_F_CAPA_PHYS_CONTIG)
-               *min_chunk_size = mem_size;
-       else
-               *min_chunk_size = RTE_MAX((size_t)1 << pg_shift, total_elt_sz);
+       *min_chunk_size = RTE_MAX((size_t)1 << pg_shift, total_elt_sz);
 
        *align = RTE_MAX((size_t)RTE_CACHE_LINE_SIZE, (size_t)1 << pg_shift);
 
        return mem_size;
 }
+
+int
+rte_mempool_op_populate_default(struct rte_mempool *mp, unsigned int max_objs,
+               void *vaddr, rte_iova_t iova, size_t len,
+               rte_mempool_populate_obj_cb_t *obj_cb, void *obj_cb_arg)
+{
+       size_t total_elt_sz;
+       size_t off;
+       unsigned int i;
+       void *obj;
+
+       total_elt_sz = mp->header_size + mp->elt_size + mp->trailer_size;
+
+       for (off = 0, i = 0; off + total_elt_sz <= len && i < max_objs; i++) {
+               off += mp->header_size;
+               obj = (char *)vaddr + off;
+               obj_cb(mp, obj_cb_arg, obj,
+                      (iova == RTE_BAD_IOVA) ? RTE_BAD_IOVA : (iova + off));
+               rte_mempool_ops_enqueue_bulk(mp, &obj, 1);
+               off += mp->elt_size + mp->trailer_size;
+       }
+
+       return i;
+}