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1 | /*- |
2 | * BSD LICENSE | |
3 | * | |
4 | * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. | |
5 | * All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * | |
11 | * * Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * * Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in | |
15 | * the documentation and/or other materials provided with the | |
16 | * distribution. | |
17 | * * Neither the name of Intel Corporation nor the names of its | |
18 | * contributors may be used to endorse or promote products derived | |
19 | * from this software without specific prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
22 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
24 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
25 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
26 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
27 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
28 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
29 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
30 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
32 | */ | |
33 | ||
34 | #ifndef __INCLUDE_RTE_PORT_RAS_H__ | |
35 | #define __INCLUDE_RTE_PORT_RAS_H__ | |
36 | ||
37 | #ifdef __cplusplus | |
38 | extern "C" { | |
39 | #endif | |
40 | ||
41 | /** | |
42 | * @file | |
43 | * RTE Port for IPv4 Reassembly | |
44 | * | |
45 | * This port is built on top of pre-initialized single producer rte_ring. In | |
46 | * order to minimize the amount of packets stored in the ring at any given | |
47 | * time, the IP reassembly functionality is executed on ring write operation, | |
48 | * hence this port is implemented as an output port. A regular ring_reader port | |
49 | * can be created to read from the same ring. | |
50 | * | |
51 | * The packets written to the ring are either complete IP datagrams or IP | |
52 | * fragments. The packets read from the ring are all complete IP datagrams, | |
53 | * either jumbo frames (i.e. IP packets with length bigger than MTU) or not. | |
54 | * The complete IP datagrams written to the ring are not changed. The IP | |
55 | * fragments written to the ring are first reassembled and into complete IP | |
56 | * datagrams or dropped on error or IP reassembly time-out. | |
57 | * | |
58 | ***/ | |
59 | ||
60 | #include <stdint.h> | |
61 | ||
62 | #include <rte_ring.h> | |
63 | ||
64 | #include "rte_port.h" | |
65 | ||
66 | /** ring_writer_ipv4_ras port parameters */ | |
67 | struct rte_port_ring_writer_ras_params { | |
68 | /** Underlying single consumer ring that has to be pre-initialized. */ | |
69 | struct rte_ring *ring; | |
70 | ||
71 | /** Recommended burst size to ring. The actual burst size can be bigger | |
72 | or smaller than this value. */ | |
73 | uint32_t tx_burst_sz; | |
74 | }; | |
75 | ||
76 | #define rte_port_ring_writer_ipv4_ras_params rte_port_ring_writer_ras_params | |
77 | ||
78 | #define rte_port_ring_writer_ipv6_ras_params rte_port_ring_writer_ras_params | |
79 | ||
80 | /** ring_writer_ipv4_ras port operations */ | |
81 | extern struct rte_port_out_ops rte_port_ring_writer_ipv4_ras_ops; | |
82 | ||
83 | /** ring_writer_ipv6_ras port operations */ | |
84 | extern struct rte_port_out_ops rte_port_ring_writer_ipv6_ras_ops; | |
85 | ||
86 | #ifdef __cplusplus | |
87 | } | |
88 | #endif | |
89 | ||
90 | #endif |