1 /* 2 * Copyright (C) 2017 THL A29 Limited, a Tencent company. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, this 9 * list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 18 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 23 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 */ 26 27 #ifndef _FF_MSG_H_ 28 #define _FF_MSG_H_ 29 30 #include <rte_memory.h> 31 32 #define FF_MSG_RING_IN "ff_msg_ring_in_" 33 #define FF_MSG_RING_OUT "ff_msg_ring_out_" 34 #define FF_MSG_POOL "ff_msg_pool" 35 36 /* MSG TYPE: sysctl, ioctl, etc.. */ 37 enum FF_MSG_TYPE { 38 FF_UNKNOWN = 0, 39 FF_SYSCTL, 40 FF_IOCTL, 41 }; 42 43 struct ff_sysctl_args { 44 int *name; 45 unsigned namelen; 46 void *old; 47 size_t *oldlenp; 48 void *new; 49 size_t newlen; 50 }; 51 52 struct ff_ioctl_args { 53 unsigned long cmd; 54 void *data; 55 }; 56 57 #define MAX_MSG_BUF_SIZE 10240 58 59 /* structure of ipc msg */ 60 struct ff_msg { 61 enum FF_MSG_TYPE msg_type; 62 /* Result of msg processing */ 63 int result; 64 /* Length of segment buffer. */ 65 uint16_t buf_len; 66 /* Address of segment buffer. */ 67 char *buf_addr; 68 69 union { 70 struct ff_sysctl_args sysctl; 71 struct ff_ioctl_args ioctl; 72 }; 73 } __attribute__((packed)) __rte_cache_aligned; 74 75 #endif 76