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_cpi_rcv_t. 39 * This object represents the ClassPortInfo Receiver object. 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_qmap.h> 50#include <complib/cl_passivelock.h> 51#include <complib/cl_debug.h> 52#include <complib/cl_qlist.h> 53#include <vendor/osm_vendor_api.h> 54#include <opensm/osm_helper.h> 55#include <opensm/osm_sa.h> 56 57#define MAX_MSECS_TO_RTV 24 58/* Precalculated table in msec (index is related to encoded value) */ 59/* 4.096 usec * 2 ** n (where n = 8 - 31) */ 60const static uint32_t __msecs_to_rtv_table[MAX_MSECS_TO_RTV] = { 61 1, 2, 4, 8, 62 16, 33, 67, 134, 63 268, 536, 1073, 2147, 64 4294, 8589, 17179, 34359, 65 68719, 137438, 274877, 549755, 66 1099511, 2199023, 4398046, 8796093 67}; 68 69/********************************************************************** 70 **********************************************************************/ 71static void 72__osm_cpi_rcv_respond(IN osm_sa_t * sa, 73 IN const osm_madw_t * const p_madw) 74{ 75 osm_madw_t *p_resp_madw; 76 const ib_sa_mad_t *p_sa_mad; 77 ib_sa_mad_t *p_resp_sa_mad; 78 ib_class_port_info_t *p_resp_cpi; 79 ib_gid_t zero_gid; 80 uint8_t rtv; 81 82 OSM_LOG_ENTER(sa->p_log); 83 84 memset(&zero_gid, 0, sizeof(ib_gid_t)); 85 86 /* 87 Get a MAD to reply. Address of Mad is in the received mad_wrapper 88 */ 89 p_resp_madw = osm_mad_pool_get(sa->p_mad_pool, p_madw->h_bind, 90 MAD_BLOCK_SIZE, &p_madw->mad_addr); 91 if (!p_resp_madw) { 92 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 1408: " 93 "Unable to allocate MAD\n"); 94 goto Exit; 95 } 96 97 p_sa_mad = osm_madw_get_sa_mad_ptr(p_madw); 98 p_resp_sa_mad = osm_madw_get_sa_mad_ptr(p_resp_madw); 99 100 memcpy(p_resp_sa_mad, p_sa_mad, IB_SA_MAD_HDR_SIZE); 101 p_resp_sa_mad->method |= IB_MAD_METHOD_RESP_MASK; 102 /* C15-0.1.5 - always return SM_Key = 0 (table 185 p 884) */ 103 p_resp_sa_mad->sm_key = 0; 104 105 p_resp_cpi = 106 (ib_class_port_info_t *) ib_sa_mad_get_payload_ptr(p_resp_sa_mad); 107 108 /* finally do it (the job) man ! */ 109 p_resp_cpi->base_ver = 1; 110 p_resp_cpi->class_ver = 2; 111 /* Calculate encoded response time value */ 112 /* transaction timeout is in msec */ 113 if (sa->p_subn->opt.transaction_timeout > 114 __msecs_to_rtv_table[MAX_MSECS_TO_RTV - 1]) 115 rtv = MAX_MSECS_TO_RTV - 1; 116 else { 117 for (rtv = 0; rtv < MAX_MSECS_TO_RTV; rtv++) { 118 if (sa->p_subn->opt.transaction_timeout <= 119 __msecs_to_rtv_table[rtv]) 120 break; 121 } 122 } 123 rtv += 8; 124 ib_class_set_resp_time_val(p_resp_cpi, rtv); 125 p_resp_cpi->redir_gid = zero_gid; 126 p_resp_cpi->redir_tc_sl_fl = 0; 127 p_resp_cpi->redir_lid = 0; 128 p_resp_cpi->redir_pkey = 0; 129 p_resp_cpi->redir_qp = CL_NTOH32(1); 130 p_resp_cpi->redir_qkey = IB_QP1_WELL_KNOWN_Q_KEY; 131 p_resp_cpi->trap_gid = zero_gid; 132 p_resp_cpi->trap_tc_sl_fl = 0; 133 p_resp_cpi->trap_lid = 0; 134 p_resp_cpi->trap_pkey = 0; 135 p_resp_cpi->trap_hop_qp = 0; 136 p_resp_cpi->trap_qkey = IB_QP1_WELL_KNOWN_Q_KEY; 137 138 /* set specific capability mask bits */ 139 /* we do not support the following options/optional records: 140 OSM_CAP_IS_SUBN_OPT_RECS_SUP : 141 RandomForwardingTableRecord, 142 ServiceAssociationRecord 143 other optional records supported "under the table" 144 145 OSM_CAP_IS_MULTIPATH_SUP: 146 TraceRecord 147 148 OSM_CAP_IS_REINIT_SUP: 149 For reinitialization functionality. 150 151 So not sending traps, but supporting Get(Notice) and Set(Notice). 152 */ 153 154 /* Note host notation replaced later */ 155#if defined (VENDOR_RMPP_SUPPORT) && defined (DUAL_SIDED_RMPP) 156 p_resp_cpi->cap_mask = OSM_CAP_IS_SUBN_GET_SET_NOTICE_SUP | 157 OSM_CAP_IS_PORT_INFO_CAPMASK_MATCH_SUPPORTED | 158 OSM_CAP_IS_MULTIPATH_SUP; 159#else 160 p_resp_cpi->cap_mask = OSM_CAP_IS_SUBN_GET_SET_NOTICE_SUP | 161 OSM_CAP_IS_PORT_INFO_CAPMASK_MATCH_SUPPORTED; 162#endif 163 if (sa->p_subn->opt.qos) 164 ib_class_set_cap_mask2(p_resp_cpi, OSM_CAP2_IS_QOS_SUPPORTED); 165 166 if (!sa->p_subn->opt.disable_multicast) 167 p_resp_cpi->cap_mask |= OSM_CAP_IS_UD_MCAST_SUP; 168 p_resp_cpi->cap_mask = cl_hton16(p_resp_cpi->cap_mask); 169 170 if (osm_log_is_active(sa->p_log, OSM_LOG_FRAMES)) 171 osm_dump_sa_mad(sa->p_log, p_resp_sa_mad, OSM_LOG_FRAMES); 172 173 osm_sa_send(sa, p_resp_madw, FALSE); 174 175Exit: 176 OSM_LOG_EXIT(sa->p_log); 177} 178 179/********************************************************************** 180 * This code actually handles the call 181 **********************************************************************/ 182void osm_cpi_rcv_process(IN void *context, IN void *data) 183{ 184 osm_sa_t *sa = context; 185 osm_madw_t *p_madw = data; 186 const ib_sa_mad_t *p_sa_mad; 187 188 OSM_LOG_ENTER(sa->p_log); 189 190 CL_ASSERT(p_madw); 191 192 p_sa_mad = osm_madw_get_sa_mad_ptr(p_madw); 193 194 /* we only support GET */ 195 if (p_sa_mad->method != IB_MAD_METHOD_GET) { 196 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 1403: " 197 "Unsupported Method (%s)\n", 198 ib_get_sa_method_str(p_sa_mad->method)); 199 osm_sa_send_error(sa, p_madw, IB_SA_MAD_STATUS_REQ_INVALID); 200 goto Exit; 201 } 202 203 CL_ASSERT(p_sa_mad->attr_id == IB_MAD_ATTR_CLASS_PORT_INFO); 204 205 /* 206 CLASS PORT INFO does not really look on the SMDB - no lock required. 207 */ 208 209 __osm_cpi_rcv_respond(sa, p_madw); 210 211Exit: 212 OSM_LOG_EXIT(sa->p_log); 213} 214