mempool: reduce wasted space on populate

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

diff --git a/lib/librte_mempool/rte_mempool_ops.c b/lib/librte_mempool/rte_mempool_ops.c
index f2af5e5..22c5251 100644 (file)
--- a/lib/librte_mempool/rte_mempool_ops.c
+++ b/lib/librte_mempool/rte_mempool_ops.c
@@ -1,40 +1,12 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2016 Intel Corporation. All rights reserved.
- *   Copyright(c) 2016 6WIND S.A.
- *   All rights reserved.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in
- *       the documentation and/or other materials provided with the
- *       distribution.
- *     * Neither the name of Intel Corporation nor the names of its
- *       contributors may be used to endorse or promote products derived
- *       from this software without specific prior written permission.
- *
- *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2016 Intel Corporation.
+ * Copyright(c) 2016 6WIND S.A.
  */
 
 #include <stdio.h>
 #include <string.h>
 
+#include <rte_string_fns.h>
 #include <rte_mempool.h>
 #include <rte_errno.h>
 #include <rte_dev.h>
@@ -80,13 +52,16 @@ rte_mempool_register_ops(const struct rte_mempool_ops *h)
 
        ops_index = rte_mempool_ops_table.num_ops++;
        ops = &rte_mempool_ops_table.ops[ops_index];
-       snprintf(ops->name, sizeof(ops->name), "%s", h->name);
+       strlcpy(ops->name, h->name, sizeof(ops->name));
        ops->alloc = h->alloc;
        ops->free = h->free;
        ops->enqueue = h->enqueue;
        ops->dequeue = h->dequeue;
        ops->get_count = h->get_count;
-       ops->get_capabilities = h->get_capabilities;
+       ops->calc_mem_size = h->calc_mem_size;
+       ops->populate = h->populate;
+       ops->get_info = h->get_info;
+       ops->dequeue_contig_blocks = h->dequeue_contig_blocks;
 
        rte_spinlock_unlock(&rte_mempool_ops_table.sl);
 
@@ -125,19 +100,59 @@ rte_mempool_ops_get_count(const struct rte_mempool *mp)
        return ops->get_count(mp);
 }
 
-/* wrapper to get external mempool capabilities. */
+/* wrapper to calculate the memory size required to store given number
+ * of objects
+ */
+ssize_t
+rte_mempool_ops_calc_mem_size(const struct rte_mempool *mp,
+                               uint32_t obj_num, uint32_t pg_shift,
+                               size_t *min_chunk_size, size_t *align)
+{
+       struct rte_mempool_ops *ops;
+
+       ops = rte_mempool_get_ops(mp->ops_index);
+
+       if (ops->calc_mem_size == NULL)
+               return rte_mempool_op_calc_mem_size_default(mp, obj_num,
+                               pg_shift, min_chunk_size, align);
+
+       return ops->calc_mem_size(mp, obj_num, pg_shift, min_chunk_size, align);
+}
+
+/* wrapper to populate memory pool objects using provided memory chunk */
 int
-rte_mempool_ops_get_capabilities(const struct rte_mempool *mp,
-                                       unsigned int *flags)
+rte_mempool_ops_populate(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)
 {
        struct rte_mempool_ops *ops;
 
        ops = rte_mempool_get_ops(mp->ops_index);
 
-       RTE_FUNC_PTR_OR_ERR_RET(ops->get_capabilities, -ENOTSUP);
-       return ops->get_capabilities(mp, flags);
+       if (ops->populate == NULL)
+               return rte_mempool_op_populate_default(mp, max_objs, vaddr,
+                                                      iova, len, obj_cb,
+                                                      obj_cb_arg);
+
+       return ops->populate(mp, max_objs, vaddr, iova, len, obj_cb,
+                            obj_cb_arg);
 }
 
+/* wrapper to get additional mempool info */
+int
+rte_mempool_ops_get_info(const struct rte_mempool *mp,
+                        struct rte_mempool_info *info)
+{
+       struct rte_mempool_ops *ops;
+
+       ops = rte_mempool_get_ops(mp->ops_index);
+
+       RTE_FUNC_PTR_OR_ERR_RET(ops->get_info, -ENOTSUP);
+       return ops->get_info(mp, info);
+}
+
+
 /* sets mempool ops previously registered by rte_mempool_register_ops. */
 int
 rte_mempool_set_ops_byname(struct rte_mempool *mp, const char *name,