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_TABLE_ARRAY_H__ 35 #define __INCLUDE_RTE_TABLE_ARRAY_H__ 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 /** 42 * @file 43 * RTE Table Array 44 * 45 * Simple array indexing. Lookup key is the array entry index. 46 * 47 ***/ 48 49 #include <stdint.h> 50 51 #include "rte_table.h" 52 53 /** Array table parameters */ 54 struct rte_table_array_params { 55 /** Number of array entries. Has to be a power of two. */ 56 uint32_t n_entries; 57 58 /** Byte offset within input packet meta-data where lookup key (i.e. the 59 array entry index) is located. */ 60 uint32_t offset; 61 }; 62 63 /** Array table key format */ 64 struct rte_table_array_key { 65 /** Array entry index */ 66 uint32_t pos; 67 }; 68 69 /** Array table operations */ 70 extern struct rte_table_ops rte_table_array_ops; 71 72 #ifdef __cplusplus 73 } 74 #endif 75 76 #endif 77