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 _COMMON_H_ 35 #define _COMMON_H_ 36 37 #define MAX_CLIENTS 16 38 39 /* 40 * Shared port info, including statistics information for display by server. 41 * Structure will be put in a memzone. 42 * - All port id values share one cache line as this data will be read-only 43 * during operation. 44 * - All rx statistic values share cache lines, as this data is written only 45 * by the server process. (rare reads by stats display) 46 * - The tx statistics have values for all ports per cache line, but the stats 47 * themselves are written by the clients, so we have a distinct set, on different 48 * cache lines for each client to use. 49 */ 50 struct rx_stats{ 51 uint64_t rx[RTE_MAX_ETHPORTS]; 52 } __rte_cache_aligned; 53 54 struct tx_stats{ 55 uint64_t tx[RTE_MAX_ETHPORTS]; 56 uint64_t tx_drop[RTE_MAX_ETHPORTS]; 57 } __rte_cache_aligned; 58 59 struct port_info { 60 uint16_t num_ports; 61 uint16_t id[RTE_MAX_ETHPORTS]; 62 volatile struct rx_stats rx_stats; 63 volatile struct tx_stats tx_stats[MAX_CLIENTS]; 64 }; 65 66 /* define common names for structures shared between server and client */ 67 #define MP_CLIENT_RXQ_NAME "MProc_Client_%u_RX" 68 #define PKTMBUF_POOL_NAME "MProc_pktmbuf_pool" 69 #define MZ_PORT_INFO "MProc_port_info" 70 71 /* 72 * Given the rx queue name template above, get the queue name 73 */ 74 static inline const char * 75 get_rx_queue_name(unsigned id) 76 { 77 /* buffer for return value. Size calculated by %u being replaced 78 * by maximum 3 digits (plus an extra byte for safety) */ 79 static char buffer[sizeof(MP_CLIENT_RXQ_NAME) + 2]; 80 81 snprintf(buffer, sizeof(buffer) - 1, MP_CLIENT_RXQ_NAME, id); 82 return buffer; 83 } 84 85 #define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1 86 87 #endif 88