1 /* 2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. 3 * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved. 4 * 5 * This software is available to you under a choice of one of two 6 * licenses. You may choose to be licensed under the terms of the GNU 7 * General Public License (GPL) Version 2, available from the file 8 * COPYING in the main directory of this source tree, or the 9 * OpenIB.org BSD license below: 10 * 11 * Redistribution and use in source and binary forms, with or 12 * without modification, are permitted provided that the following 13 * conditions are met: 14 * 15 * - Redistributions of source code must retain the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer. 18 * 19 * - Redistributions in binary form must reproduce the above 20 * copyright notice, this list of conditions and the following 21 * disclaimer in the documentation and/or other materials 22 * provided with the distribution. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 31 * SOFTWARE. 32 */ 33 34 #ifndef IB_VERBS_H 35 #define IB_VERBS_H 36 37 #include <pthread.h> 38 39 #include <infiniband/driver.h> 40 41 #define INIT __attribute__((constructor)) 42 43 #define DEFAULT_ABI "IBVERBS_1.1" 44 45 #define symver(name, api, ver) asm(".symver " #name "," #api "@" #ver) 46 #define default_symver(name, api) \ 47 asm(".symver " #name "," #api "@@" DEFAULT_ABI) 48 #define private_symver(name, api) \ 49 asm(".symver " #name "," #api "@@IBVERBS_PRIVATE_14") 50 51 #define PFX "libibverbs: " 52 53 struct ibv_abi_compat_v2 { 54 struct ibv_comp_channel channel; 55 pthread_mutex_t in_use; 56 }; 57 58 extern int abi_ver; 59 60 int ibverbs_init(struct ibv_device ***list); 61 62 struct verbs_ex_private { 63 struct ibv_cq_ex *(*create_cq_ex)(struct ibv_context *context, 64 struct ibv_cq_init_attr_ex *init_attr); 65 }; 66 67 #define IBV_INIT_CMD(cmd, size, opcode) \ 68 do { \ 69 if (abi_ver > 2) \ 70 (cmd)->command = IB_USER_VERBS_CMD_##opcode; \ 71 else \ 72 (cmd)->command = IB_USER_VERBS_CMD_##opcode##_V2; \ 73 (cmd)->in_words = (size) / 4; \ 74 (cmd)->out_words = 0; \ 75 } while (0) 76 77 #define IBV_INIT_CMD_RESP(cmd, size, opcode, out, outsize) \ 78 do { \ 79 if (abi_ver > 2) \ 80 (cmd)->command = IB_USER_VERBS_CMD_##opcode; \ 81 else \ 82 (cmd)->command = IB_USER_VERBS_CMD_##opcode##_V2; \ 83 (cmd)->in_words = (size) / 4; \ 84 (cmd)->out_words = (outsize) / 4; \ 85 (cmd)->response = (uintptr_t) (out); \ 86 } while (0) 87 88 #define IBV_INIT_CMD_RESP_EX_V(cmd, cmd_size, size, opcode, out, resp_size,\ 89 outsize) \ 90 do { \ 91 size_t c_size = cmd_size - sizeof(struct ex_hdr); \ 92 if (abi_ver > 2) \ 93 (cmd)->hdr.command = IB_USER_VERBS_CMD_##opcode; \ 94 else \ 95 (cmd)->hdr.command = \ 96 IB_USER_VERBS_CMD_##opcode##_V2; \ 97 (cmd)->hdr.in_words = ((c_size) / 8); \ 98 (cmd)->hdr.out_words = ((resp_size) / 8); \ 99 (cmd)->hdr.provider_in_words = (((size) - (cmd_size))/8);\ 100 (cmd)->hdr.provider_out_words = \ 101 (((outsize) - (resp_size)) / 8); \ 102 (cmd)->hdr.response = (uintptr_t) (out); \ 103 (cmd)->hdr.reserved = 0; \ 104 } while (0) 105 106 #define IBV_INIT_CMD_RESP_EX_VCMD(cmd, cmd_size, size, opcode, out, outsize) \ 107 IBV_INIT_CMD_RESP_EX_V(cmd, cmd_size, size, opcode, out, \ 108 sizeof(*(out)), outsize) 109 110 #define IBV_INIT_CMD_RESP_EX(cmd, size, opcode, out, outsize) \ 111 IBV_INIT_CMD_RESP_EX_V(cmd, sizeof(*(cmd)), size, opcode, out, \ 112 sizeof(*(out)), outsize) 113 114 #define IBV_INIT_CMD_EX(cmd, size, opcode) \ 115 IBV_INIT_CMD_RESP_EX_V(cmd, sizeof(*(cmd)), size, opcode, NULL, 0, 0) 116 117 #endif /* IB_VERBS_H */ 118