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_resp_t. 39 * This object represents the generic attribute responder. 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 <string.h> 48 #include <iba/ib_types.h> 49 #include <complib/cl_debug.h> 50 #include <opensm/osm_file_ids.h> 51 #define FILE_ID OSM_FILE_RESP_C 52 #include <opensm/osm_madw.h> 53 #include <opensm/osm_attrib_req.h> 54 #include <opensm/osm_log.h> 55 #include <opensm/osm_helper.h> 56 #include <opensm/osm_mad_pool.h> 57 #include <opensm/osm_vl15intf.h> 58 #include <opensm/osm_msgdef.h> 59 #include <opensm/osm_opensm.h> 60 61 static void resp_make_resp_smp(IN osm_sm_t * sm, IN const ib_smp_t * p_src_smp, 62 IN ib_net16_t status, 63 IN const uint8_t * p_payload, 64 OUT ib_smp_t * p_dest_smp) 65 { 66 OSM_LOG_ENTER(sm->p_log); 67 68 CL_ASSERT(p_dest_smp); 69 CL_ASSERT(p_src_smp); 70 CL_ASSERT(!ib_smp_is_response(p_src_smp)); 71 72 *p_dest_smp = *p_src_smp; 73 if (p_src_smp->method == IB_MAD_METHOD_GET || 74 p_src_smp->method == IB_MAD_METHOD_SET) { 75 p_dest_smp->method = IB_MAD_METHOD_GET_RESP; 76 p_dest_smp->status = status; 77 } else if (p_src_smp->method == IB_MAD_METHOD_TRAP) { 78 p_dest_smp->method = IB_MAD_METHOD_TRAP_REPRESS; 79 p_dest_smp->status = 0; 80 } else { 81 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 1302: " 82 "src smp method unsupported 0x%X\n", p_src_smp->method); 83 goto Exit; 84 } 85 86 if (p_src_smp->mgmt_class == IB_MCLASS_SUBN_DIR) 87 p_dest_smp->status |= IB_SMP_DIRECTION; 88 89 p_dest_smp->dr_dlid = p_dest_smp->dr_slid; 90 p_dest_smp->dr_slid = p_dest_smp->dr_dlid; 91 memcpy(&p_dest_smp->data, p_payload, IB_SMP_DATA_SIZE); 92 93 Exit: 94 OSM_LOG_EXIT(sm->p_log); 95 } 96 97 ib_api_status_t osm_resp_send(IN osm_sm_t * sm, 98 IN const osm_madw_t * p_req_madw, 99 IN ib_net16_t mad_status, 100 IN const uint8_t * p_payload) 101 { 102 const ib_smp_t *p_req_smp; 103 ib_smp_t *p_smp; 104 osm_madw_t *p_madw; 105 ib_api_status_t status = IB_SUCCESS; 106 107 OSM_LOG_ENTER(sm->p_log); 108 109 CL_ASSERT(p_req_madw); 110 CL_ASSERT(p_payload); 111 112 /* do nothing if we are exiting ... */ 113 if (osm_exit_flag) 114 goto Exit; 115 116 p_madw = osm_mad_pool_get(sm->p_mad_pool, 117 osm_madw_get_bind_handle(p_req_madw), 118 MAD_BLOCK_SIZE, NULL); 119 120 if (p_madw == NULL) { 121 OSM_LOG(sm->p_log, OSM_LOG_ERROR, 122 "ERR 1301: Unable to acquire MAD\n"); 123 status = IB_INSUFFICIENT_RESOURCES; 124 goto Exit; 125 } 126 127 /* 128 Copy the request smp to the response smp, then just 129 update the necessary fields. 130 */ 131 p_smp = osm_madw_get_smp_ptr(p_madw); 132 p_req_smp = osm_madw_get_smp_ptr(p_req_madw); 133 resp_make_resp_smp(sm, p_req_smp, mad_status, p_payload, p_smp); 134 p_madw->mad_addr.dest_lid = 135 p_req_madw->mad_addr.addr_type.smi.source_lid; 136 p_madw->mad_addr.addr_type.smi.source_lid = 137 p_req_madw->mad_addr.dest_lid; 138 139 p_madw->resp_expected = FALSE; 140 p_madw->fail_msg = CL_DISP_MSGID_NONE; 141 142 OSM_LOG(sm->p_log, OSM_LOG_DEBUG, "Responding to %s (0x%X)" 143 "\n\t\t\t\tattribute modifier 0x%X, TID 0x%" PRIx64 "\n", 144 ib_get_sm_attr_str(p_smp->attr_id), cl_ntoh16(p_smp->attr_id), 145 cl_ntoh32(p_smp->attr_mod), cl_ntoh64(p_smp->trans_id)); 146 147 osm_vl15_post(sm->p_vl15, p_madw); 148 149 Exit: 150 OSM_LOG_EXIT(sm->p_log); 151 return status; 152 } 153