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_lftr_rcv_t. 39 * This object represents the LinearForwardingTable 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_debug.h> 50#include <complib/cl_qlist.h> 51#include <vendor/osm_vendor_api.h> 52#include <opensm/osm_switch.h> 53#include <opensm/osm_helper.h> 54#include <opensm/osm_pkey.h> 55#include <opensm/osm_sa.h> 56 57typedef struct osm_lftr_item { 58 cl_list_item_t list_item; 59 ib_lft_record_t rec; 60} osm_lftr_item_t; 61 62typedef struct osm_lftr_search_ctxt { 63 const ib_lft_record_t *p_rcvd_rec; 64 ib_net64_t comp_mask; 65 cl_qlist_t *p_list; 66 osm_sa_t *sa; 67 const osm_physp_t *p_req_physp; 68} osm_lftr_search_ctxt_t; 69 70/********************************************************************** 71 **********************************************************************/ 72static ib_api_status_t 73__osm_lftr_rcv_new_lftr(IN osm_sa_t * sa, 74 IN const osm_switch_t * const p_sw, 75 IN cl_qlist_t * const p_list, 76 IN ib_net16_t const lid, IN uint16_t const block) 77{ 78 osm_lftr_item_t *p_rec_item; 79 ib_api_status_t status = IB_SUCCESS; 80 81 OSM_LOG_ENTER(sa->p_log); 82 83 p_rec_item = malloc(sizeof(*p_rec_item)); 84 if (p_rec_item == NULL) { 85 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4402: " 86 "rec_item alloc failed\n"); 87 status = IB_INSUFFICIENT_RESOURCES; 88 goto Exit; 89 } 90 91 OSM_LOG(sa->p_log, OSM_LOG_DEBUG, 92 "New LinearForwardingTable: sw 0x%016" PRIx64 93 "\n\t\t\t\tblock 0x%02X lid %u\n", 94 cl_ntoh64(osm_node_get_node_guid(p_sw->p_node)), 95 block, cl_ntoh16(lid)); 96 97 memset(p_rec_item, 0, sizeof(*p_rec_item)); 98 99 p_rec_item->rec.lid = lid; 100 p_rec_item->rec.block_num = cl_hton16(block); 101 102 /* copy the lft block */ 103 osm_switch_get_lft_block(p_sw, block, p_rec_item->rec.lft); 104 105 cl_qlist_insert_tail(p_list, &p_rec_item->list_item); 106 107Exit: 108 OSM_LOG_EXIT(sa->p_log); 109 return (status); 110} 111 112/********************************************************************** 113 **********************************************************************/ 114static void 115__osm_lftr_rcv_by_comp_mask(IN cl_map_item_t * const p_map_item, 116 IN void *context) 117{ 118 const osm_lftr_search_ctxt_t *const p_ctxt = 119 (osm_lftr_search_ctxt_t *) context; 120 const osm_switch_t *const p_sw = (osm_switch_t *) p_map_item; 121 const ib_lft_record_t *const p_rcvd_rec = p_ctxt->p_rcvd_rec; 122 osm_sa_t *sa = p_ctxt->sa; 123 ib_net64_t const comp_mask = p_ctxt->comp_mask; 124 const osm_physp_t *const p_req_physp = p_ctxt->p_req_physp; 125 osm_port_t *p_port; 126 uint16_t min_lid_ho, max_lid_ho; 127 uint16_t min_block, max_block, block; 128 const osm_physp_t *p_physp; 129 130 /* In switches, the port guid is the node guid. */ 131 p_port = osm_get_port_by_guid(sa->p_subn, 132 p_sw->p_node->node_info.port_guid); 133 if (!p_port) { 134 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4405: " 135 "Failed to find Port by Node Guid:0x%016" PRIx64 136 "\n", cl_ntoh64(p_sw->p_node->node_info.node_guid)); 137 return; 138 } 139 140 /* check that the requester physp and the current physp are under 141 the same partition. */ 142 p_physp = p_port->p_physp; 143 if (!p_physp) { 144 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4406: " 145 "Failed to find default physical Port by Node Guid:0x%016" 146 PRIx64 "\n", 147 cl_ntoh64(p_sw->p_node->node_info.node_guid)); 148 return; 149 } 150 if (!osm_physp_share_pkey(sa->p_log, p_req_physp, p_physp)) 151 return; 152 153 /* get the port 0 of the switch */ 154 osm_port_get_lid_range_ho(p_port, &min_lid_ho, &max_lid_ho); 155 156 /* compare the lids - if required */ 157 if (comp_mask & IB_LFTR_COMPMASK_LID) { 158 OSM_LOG(sa->p_log, OSM_LOG_DEBUG, 159 "Comparing lid:%u to port lid range: %u .. %u\n", 160 cl_ntoh16(p_rcvd_rec->lid), min_lid_ho, max_lid_ho); 161 /* ok we are ready for range check */ 162 if (min_lid_ho > cl_ntoh16(p_rcvd_rec->lid) || 163 max_lid_ho < cl_ntoh16(p_rcvd_rec->lid)) 164 return; 165 } 166 167 /* now we need to decide which blocks to output */ 168 max_block = osm_switch_get_max_block_id_in_use(p_sw); 169 if (comp_mask & IB_LFTR_COMPMASK_BLOCK) { 170 min_block = cl_ntoh16(p_rcvd_rec->block_num); 171 if (min_block > max_block) 172 return; 173 max_block = min_block; 174 } else /* use as many blocks as "in use" */ 175 min_block = 0; 176 177 /* so we can add these blocks one by one ... */ 178 for (block = min_block; block <= max_block; block++) 179 __osm_lftr_rcv_new_lftr(sa, p_sw, p_ctxt->p_list, 180 osm_port_get_base_lid(p_port), block); 181} 182 183/********************************************************************** 184 **********************************************************************/ 185void osm_lftr_rcv_process(IN void *ctx, IN void *data) 186{ 187 osm_sa_t *sa = ctx; 188 osm_madw_t *p_madw = data; 189 const ib_sa_mad_t *p_rcvd_mad; 190 const ib_lft_record_t *p_rcvd_rec; 191 cl_qlist_t rec_list; 192 osm_lftr_search_ctxt_t context; 193 osm_physp_t *p_req_physp; 194 195 CL_ASSERT(sa); 196 197 OSM_LOG_ENTER(sa->p_log); 198 199 CL_ASSERT(p_madw); 200 201 p_rcvd_mad = osm_madw_get_sa_mad_ptr(p_madw); 202 p_rcvd_rec = (ib_lft_record_t *) ib_sa_mad_get_payload_ptr(p_rcvd_mad); 203 204 CL_ASSERT(p_rcvd_mad->attr_id == IB_MAD_ATTR_LFT_RECORD); 205 206 /* we only support SubnAdmGet and SubnAdmGetTable methods */ 207 if (p_rcvd_mad->method != IB_MAD_METHOD_GET && 208 p_rcvd_mad->method != IB_MAD_METHOD_GETTABLE) { 209 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4408: " 210 "Unsupported Method (%s)\n", 211 ib_get_sa_method_str(p_rcvd_mad->method)); 212 osm_sa_send_error(sa, p_madw, IB_MAD_STATUS_UNSUP_METHOD_ATTR); 213 goto Exit; 214 } 215 216 /* update the requester physical port. */ 217 p_req_physp = osm_get_physp_by_mad_addr(sa->p_log, sa->p_subn, 218 osm_madw_get_mad_addr_ptr 219 (p_madw)); 220 if (p_req_physp == NULL) { 221 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4407: " 222 "Cannot find requester physical port\n"); 223 goto Exit; 224 } 225 226 cl_qlist_init(&rec_list); 227 228 context.p_rcvd_rec = p_rcvd_rec; 229 context.p_list = &rec_list; 230 context.comp_mask = p_rcvd_mad->comp_mask; 231 context.sa = sa; 232 context.p_req_physp = p_req_physp; 233 234 cl_plock_acquire(sa->p_lock); 235 236 /* Go over all switches */ 237 cl_qmap_apply_func(&sa->p_subn->sw_guid_tbl, 238 __osm_lftr_rcv_by_comp_mask, &context); 239 240 cl_plock_release(sa->p_lock); 241 242 osm_sa_respond(sa, p_madw, sizeof(ib_lft_record_t), &rec_list); 243 244Exit: 245 OSM_LOG_EXIT(sa->p_log); 246} 247