1 /* 2 * Copyright (c) 2004-2009 Voltaire, Inc. All rights reserved. 3 * Copyright (c) 2002-2005 Mellanox Technologies LTD. All rights reserved. 4 * Copyright (c) 1996-2003 Intel Corporation. All rights reserved. 5 * 6 * This software is available to you under a choice of one of two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING in the main directory of this source tree, or the 10 * OpenIB.org BSD license below: 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retain the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions in binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer in the documentation and/or other materials 23 * provided with the distribution. 24 * 25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32 * SOFTWARE. 33 * 34 */ 35 36 /* 37 * Abstract: 38 * Implementation of osm_mad_pool_t. 39 * This object represents a pool of management datagram (MAD) objects. 40 * This object is part of the opensm family of objects. 41 */ 42 43 #if HAVE_CONFIG_H 44 # include <config.h> 45 #endif /* HAVE_CONFIG_H */ 46 47 #include <stdlib.h> 48 #include <string.h> 49 #include <opensm/osm_file_ids.h> 50 #define FILE_ID OSM_FILE_MAD_POOL_C 51 #include <opensm/osm_mad_pool.h> 52 #include <opensm/osm_madw.h> 53 #include <vendor/osm_vendor_api.h> 54 55 void osm_mad_pool_construct(IN osm_mad_pool_t * p_pool) 56 { 57 CL_ASSERT(p_pool); 58 59 memset(p_pool, 0, sizeof(*p_pool)); 60 } 61 62 void osm_mad_pool_destroy(IN osm_mad_pool_t * p_pool) 63 { 64 CL_ASSERT(p_pool); 65 } 66 67 ib_api_status_t osm_mad_pool_init(IN osm_mad_pool_t * p_pool) 68 { 69 p_pool->mads_out = 0; 70 71 return IB_SUCCESS; 72 } 73 74 osm_madw_t *osm_mad_pool_get(IN osm_mad_pool_t * p_pool, 75 IN osm_bind_handle_t h_bind, 76 IN uint32_t total_size, 77 IN const osm_mad_addr_t * p_mad_addr) 78 { 79 osm_madw_t *p_madw; 80 ib_mad_t *p_mad; 81 82 CL_ASSERT(h_bind != OSM_BIND_INVALID_HANDLE); 83 CL_ASSERT(total_size); 84 85 /* 86 First, acquire a mad wrapper from the mad wrapper pool. 87 */ 88 p_madw = malloc(sizeof(*p_madw)); 89 if (p_madw == NULL) 90 goto Exit; 91 92 osm_madw_init(p_madw, h_bind, total_size, p_mad_addr); 93 94 /* 95 Next, acquire a wire mad of the specified size. 96 */ 97 p_mad = osm_vendor_get(h_bind, total_size, &p_madw->vend_wrap); 98 if (p_mad == NULL) { 99 /* Don't leak wrappers! */ 100 free(p_madw); 101 p_madw = NULL; 102 goto Exit; 103 } 104 105 cl_atomic_inc(&p_pool->mads_out); 106 /* 107 Finally, attach the wire MAD to this wrapper. 108 */ 109 osm_madw_set_mad(p_madw, p_mad); 110 111 Exit: 112 return p_madw; 113 } 114 115 osm_madw_t *osm_mad_pool_get_wrapper(IN osm_mad_pool_t * p_pool, 116 IN osm_bind_handle_t h_bind, 117 IN uint32_t total_size, 118 IN const ib_mad_t * p_mad, 119 IN const osm_mad_addr_t * p_mad_addr) 120 { 121 osm_madw_t *p_madw; 122 123 CL_ASSERT(h_bind != OSM_BIND_INVALID_HANDLE); 124 CL_ASSERT(total_size); 125 CL_ASSERT(p_mad); 126 127 /* 128 First, acquire a mad wrapper from the mad wrapper pool. 129 */ 130 p_madw = malloc(sizeof(*p_madw)); 131 if (p_madw == NULL) 132 goto Exit; 133 134 /* 135 Finally, initialize the wrapper object. 136 */ 137 cl_atomic_inc(&p_pool->mads_out); 138 osm_madw_init(p_madw, h_bind, total_size, p_mad_addr); 139 osm_madw_set_mad(p_madw, p_mad); 140 141 Exit: 142 return p_madw; 143 } 144 145 osm_madw_t *osm_mad_pool_get_wrapper_raw(IN osm_mad_pool_t * p_pool) 146 { 147 osm_madw_t *p_madw; 148 149 p_madw = malloc(sizeof(*p_madw)); 150 if (!p_madw) 151 return NULL; 152 153 osm_madw_init(p_madw, 0, 0, 0); 154 osm_madw_set_mad(p_madw, 0); 155 cl_atomic_inc(&p_pool->mads_out); 156 157 return p_madw; 158 } 159 160 void osm_mad_pool_put(IN osm_mad_pool_t * p_pool, IN osm_madw_t * p_madw) 161 { 162 CL_ASSERT(p_madw); 163 164 /* 165 First, return the wire mad to the pool 166 */ 167 if (p_madw->p_mad) 168 osm_vendor_put(p_madw->h_bind, &p_madw->vend_wrap); 169 170 /* 171 Return the mad wrapper to the wrapper pool 172 */ 173 free(p_madw); 174 cl_atomic_dec(&p_pool->mads_out); 175 } 176