1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018 Intel Corporation
11 * Segment an UDP/IPv4 packet. This function doesn't check if the input
12 * packet has correct checksums, and doesn't update checksums for output
13 * GSO segments. Furthermore, it doesn't process IP fragment packets.
16 * The packet mbuf to segment.
18 * The max length of a GSO segment, measured in bytes.
20 * MBUF pool used for allocating direct buffers for output segments.
21 * @param indirect_pool
22 * MBUF pool used for allocating indirect buffers for output segments.
24 * Pointer array used to store the MBUF addresses of output GSO
25 * segments, when the function succeeds. If the memory space in
26 * pkts_out is insufficient, it fails and returns -EINVAL.
28 * The max number of items that 'pkts_out' can keep.
31 * - The number of GSO segments filled in pkts_out on success.
32 * - Return -ENOMEM if run out of memory in MBUF pools.
33 * - Return -EINVAL for invalid parameters.
35 int gso_udp4_segment(struct rte_mbuf *pkt,
37 struct rte_mempool *direct_pool,
38 struct rte_mempool *indirect_pool,
39 struct rte_mbuf **pkts_out,
40 uint16_t nb_pkts_out);