1 /*- 2 * BSD LICENSE 3 * 4 * Copyright(c) 2010-2012 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 35 #ifndef _COMMON_H_ 36 #define _COMMON_H_ 37 38 #define MAX_CLIENTS 16 39 40 /* 41 * Shared port info, including statistics information for display by server. 42 * Structure will be put in a memzone. 43 * - All port id values share one cache line as this data will be read-only 44 * during operation. 45 * - All rx statistic values share cache lines, as this data is written only 46 * by the server process. (rare reads by stats display) 47 * - The tx statistics have values for all ports per cache line, but the stats 48 * themselves are written by the clients, so we have a distinct set, on different 49 * cache lines for each client to use. 50 */ 51 struct rx_stats{ 52 uint64_t rx[RTE_MAX_ETHPORTS]; 53 } __rte_cache_aligned; 54 55 struct tx_stats{ 56 uint64_t tx[RTE_MAX_ETHPORTS]; 57 uint64_t tx_drop[RTE_MAX_ETHPORTS]; 58 } __rte_cache_aligned; 59 60 struct port_info { 61 uint8_t num_ports; 62 uint8_t id[RTE_MAX_ETHPORTS]; 63 volatile struct rx_stats rx_stats; 64 volatile struct tx_stats tx_stats[MAX_CLIENTS]; 65 }; 66 67 /* define common names for structures shared between server and client */ 68 #define MP_CLIENT_RXQ_NAME "MProc_Client_%u_RX" 69 #define PKTMBUF_POOL_NAME "MProc_pktmbuf_pool" 70 #define MZ_PORT_INFO "MProc_port_info" 71 72 /* 73 * Given the rx queue name template above, get the queue name 74 */ 75 static inline const char * 76 get_rx_queue_name(unsigned id) 77 { 78 /* buffer for return value. Size calculated by %u being replaced 79 * by maximum 3 digits (plus an extra byte for safety) */ 80 static char buffer[sizeof(MP_CLIENT_RXQ_NAME) + 2]; 81 82 rte_snprintf(buffer, sizeof(buffer) - 1, MP_CLIENT_RXQ_NAME, id); 83 return buffer; 84 } 85 86 #define RTE_LOGTYPE_APP RTE_LOGTYPE_USER1 87 88 #endif 89