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 _RTE_ETH_RING_H_ 35 #define _RTE_ETH_RING_H_ 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 #include <rte_ring.h> 42 43 /** 44 * Create a new ethdev port from a set of rings 45 * 46 * @param name 47 * name to be given to the new ethdev port 48 * @param rx_queues 49 * pointer to array of rte_rings to be used as RX queues 50 * @param nb_rx_queues 51 * number of elements in the rx_queues array 52 * @param tx_queues 53 * pointer to array of rte_rings to be used as TX queues 54 * @param nb_tx_queues 55 * number of elements in the tx_queues array 56 * @param numa_node 57 * the numa node on which the memory for this port is to be allocated 58 * @return 59 * the port number of the newly created the ethdev or -1 on error. 60 */ 61 int rte_eth_from_rings(const char *name, 62 struct rte_ring * const rx_queues[], 63 const unsigned nb_rx_queues, 64 struct rte_ring *const tx_queues[], 65 const unsigned nb_tx_queues, 66 const unsigned numa_node); 67 68 /** 69 * Create a new ethdev port from a ring 70 * 71 * This function is a shortcut call for rte_eth_from_rings for the 72 * case where one wants to take a single rte_ring and use it as though 73 * it were an ethdev 74 * 75 * @param ring 76 * the ring to be used as an ethdev 77 * @return 78 * the port number of the newly created ethdev, or -1 on error 79 */ 80 int rte_eth_from_ring(struct rte_ring *r); 81 82 #ifdef __cplusplus 83 } 84 #endif 85 86 #endif 87