1/* 2 * Copyright (c) 2004-2008 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_mad_pool.h> 50#include <opensm/osm_madw.h> 51#include <vendor/osm_vendor_api.h> 52 53/********************************************************************** 54 **********************************************************************/ 55void osm_mad_pool_construct(IN osm_mad_pool_t * const p_pool) 56{ 57 CL_ASSERT(p_pool); 58 59 memset(p_pool, 0, sizeof(*p_pool)); 60} 61 62/********************************************************************** 63 **********************************************************************/ 64void osm_mad_pool_destroy(IN osm_mad_pool_t * const p_pool) 65{ 66 CL_ASSERT(p_pool); 67} 68 69/********************************************************************** 70 **********************************************************************/ 71ib_api_status_t osm_mad_pool_init(IN osm_mad_pool_t * const p_pool) 72{ 73 p_pool->mads_out = 0; 74 75 return IB_SUCCESS; 76} 77 78/********************************************************************** 79 **********************************************************************/ 80osm_madw_t *osm_mad_pool_get(IN osm_mad_pool_t * const p_pool, 81 IN osm_bind_handle_t h_bind, 82 IN const uint32_t total_size, 83 IN const osm_mad_addr_t * const p_mad_addr) 84{ 85 osm_madw_t *p_madw; 86 ib_mad_t *p_mad; 87 88 CL_ASSERT(h_bind != OSM_BIND_INVALID_HANDLE); 89 CL_ASSERT(total_size); 90 91 /* 92 First, acquire a mad wrapper from the mad wrapper pool. 93 */ 94 p_madw = malloc(sizeof(*p_madw)); 95 if (p_madw == NULL) 96 goto Exit; 97 98 osm_madw_init(p_madw, h_bind, total_size, p_mad_addr); 99 100 /* 101 Next, acquire a wire mad of the specified size. 102 */ 103 p_mad = osm_vendor_get(h_bind, total_size, &p_madw->vend_wrap); 104 if (p_mad == NULL) { 105 /* Don't leak wrappers! */ 106 free(p_madw); 107 p_madw = NULL; 108 goto Exit; 109 } 110 111 cl_atomic_inc(&p_pool->mads_out); 112 /* 113 Finally, attach the wire MAD to this wrapper. 114 */ 115 osm_madw_set_mad(p_madw, p_mad); 116 117Exit: 118 return p_madw; 119} 120 121/********************************************************************** 122 **********************************************************************/ 123osm_madw_t *osm_mad_pool_get_wrapper(IN osm_mad_pool_t * const p_pool, 124 IN osm_bind_handle_t h_bind, 125 IN const uint32_t total_size, 126 IN const ib_mad_t * const p_mad, 127 IN const osm_mad_addr_t * const p_mad_addr) 128{ 129 osm_madw_t *p_madw; 130 131 CL_ASSERT(h_bind != OSM_BIND_INVALID_HANDLE); 132 CL_ASSERT(total_size); 133 CL_ASSERT(p_mad); 134 135 /* 136 First, acquire a mad wrapper from the mad wrapper pool. 137 */ 138 p_madw = malloc(sizeof(*p_madw)); 139 if (p_madw == NULL) 140 goto Exit; 141 142 /* 143 Finally, initialize the wrapper object. 144 */ 145 cl_atomic_inc(&p_pool->mads_out); 146 osm_madw_init(p_madw, h_bind, total_size, p_mad_addr); 147 osm_madw_set_mad(p_madw, p_mad); 148 149Exit: 150 return (p_madw); 151} 152 153/********************************************************************** 154 **********************************************************************/ 155osm_madw_t *osm_mad_pool_get_wrapper_raw(IN osm_mad_pool_t * const p_pool) 156{ 157 osm_madw_t *p_madw; 158 159 p_madw = malloc(sizeof(*p_madw)); 160 if (!p_madw) 161 return NULL; 162 163 osm_madw_init(p_madw, 0, 0, 0); 164 osm_madw_set_mad(p_madw, 0); 165 cl_atomic_inc(&p_pool->mads_out); 166 167 return (p_madw); 168} 169 170/********************************************************************** 171 **********************************************************************/ 172void 173osm_mad_pool_put(IN osm_mad_pool_t * const p_pool, IN osm_madw_t * const p_madw) 174{ 175 CL_ASSERT(p_madw); 176 177 /* 178 First, return the wire mad to the pool 179 */ 180 if (p_madw->p_mad) 181 osm_vendor_put(p_madw->h_bind, &p_madw->vend_wrap); 182 183 /* 184 Return the mad wrapper to the wrapper pool 185 */ 186 free(p_madw); 187 cl_atomic_dec(&p_pool->mads_out); 188} 189