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author | 2017-11-08 14:15:11 +0000 | |
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committer | 2017-11-08 14:45:54 +0000 | |
commit | 055c52583a2794da8ba1e85a48cce3832372b12f (patch) | |
tree | 8ceb1cb78fbb46a0f341f8ee24feb3c6b5540013 /lib/librte_gso/gso_tunnel_tcp4.h | |
parent | f239aed5e674965691846e8ce3f187dd47523689 (diff) |
New upstream version 17.11-rc3
Change-Id: I6a5baa40612fe0c20f30b5fa773a6cbbac63a685
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'lib/librte_gso/gso_tunnel_tcp4.h')
-rw-r--r-- | lib/librte_gso/gso_tunnel_tcp4.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/lib/librte_gso/gso_tunnel_tcp4.h b/lib/librte_gso/gso_tunnel_tcp4.h new file mode 100644 index 00000000..3c67f0cd --- /dev/null +++ b/lib/librte_gso/gso_tunnel_tcp4.h @@ -0,0 +1,75 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2017 Intel Corporation. All rights reserved. + * 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. + */ + +#ifndef _GSO_TUNNEL_TCP4_H_ +#define _GSO_TUNNEL_TCP4_H_ + +#include <stdint.h> +#include <rte_mbuf.h> + +/** + * Segment a tunneling packet with inner TCP/IPv4 headers. This function + * doesn't check if the input packet has correct checksums, and doesn't + * update checksums for output GSO segments. Furthermore, it doesn't + * process IP fragment packets. + * + * @param pkt + * The packet mbuf to segment. + * @param gso_size + * The max length of a GSO segment, measured in bytes. + * @param ipid_delta + * The increasing unit of IP ids. + * @param direct_pool + * MBUF pool used for allocating direct buffers for output segments. + * @param indirect_pool + * MBUF pool used for allocating indirect buffers for output segments. + * @param pkts_out + * Pointer array used to store the MBUF addresses of output GSO + * segments, when it succeeds. If the memory space in pkts_out is + * insufficient, it fails and returns -EINVAL. + * @param nb_pkts_out + * The max number of items that 'pkts_out' can keep. + * + * @return + * - The number of GSO segments filled in pkts_out on success. + * - Return -ENOMEM if run out of memory in MBUF pools. + * - Return -EINVAL for invalid parameters. + */ +int gso_tunnel_tcp4_segment(struct rte_mbuf *pkt, + uint16_t gso_size, + uint8_t ipid_delta, + struct rte_mempool *direct_pool, + struct rte_mempool *indirect_pool, + struct rte_mbuf **pkts_out, + uint16_t nb_pkts_out); +#endif |