1 /* 2 * Copyright (c) 2004-2009 Voltaire, Inc. All rights reserved. 3 * Copyright (c) 2002-2005,2008 Mellanox Technologies LTD. All rights reserved. 4 * Copyright (c) 1996-2003 Intel Corporation. All rights reserved. 5 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. 6 * 7 * This software is available to you under a choice of one of two 8 * licenses. You may choose to be licensed under the terms of the GNU 9 * General Public License (GPL) Version 2, available from the file 10 * COPYING in the main directory of this source tree, or the 11 * OpenIB.org BSD license below: 12 * 13 * Redistribution and use in source and binary forms, with or 14 * without modification, are permitted provided that the following 15 * conditions are met: 16 * 17 * - Redistributions of source code must retain the above 18 * copyright notice, this list of conditions and the following 19 * disclaimer. 20 * 21 * - Redistributions in binary form must reproduce the above 22 * copyright notice, this list of conditions and the following 23 * disclaimer in the documentation and/or other materials 24 * provided with the distribution. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 33 * SOFTWARE. 34 * 35 */ 36 37 /* 38 * Abstract: 39 * Implementation of osm_lftr_rcv_t. 40 * This object represents the LinearForwardingTable Receiver object. 41 * This object is part of the opensm family of objects. 42 */ 43 44 #if HAVE_CONFIG_H 45 # include <config.h> 46 #endif /* HAVE_CONFIG_H */ 47 48 #include <string.h> 49 #include <iba/ib_types.h> 50 #include <complib/cl_debug.h> 51 #include <complib/cl_qlist.h> 52 #include <opensm/osm_file_ids.h> 53 #define FILE_ID OSM_FILE_SA_LFT_RECORD_C 54 #include <vendor/osm_vendor_api.h> 55 #include <opensm/osm_switch.h> 56 #include <opensm/osm_helper.h> 57 #include <opensm/osm_pkey.h> 58 #include <opensm/osm_sa.h> 59 60 #define SA_LFTR_RESP_SIZE SA_ITEM_RESP_SIZE(lft_rec) 61 62 typedef 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 static ib_api_status_t lftr_rcv_new_lftr(IN osm_sa_t * sa, 71 IN const osm_switch_t * p_sw, 72 IN cl_qlist_t * p_list, 73 IN ib_net16_t lid, IN uint16_t block) 74 { 75 osm_sa_item_t *p_rec_item; 76 ib_api_status_t status = IB_SUCCESS; 77 78 OSM_LOG_ENTER(sa->p_log); 79 80 p_rec_item = malloc(SA_LFTR_RESP_SIZE); 81 if (p_rec_item == NULL) { 82 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4402: " 83 "rec_item alloc failed\n"); 84 status = IB_INSUFFICIENT_RESOURCES; 85 goto Exit; 86 } 87 88 OSM_LOG(sa->p_log, OSM_LOG_DEBUG, 89 "New LinearForwardingTable: sw 0x%016" PRIx64 90 "\n\t\t\t\tblock 0x%02X lid %u\n", 91 cl_ntoh64(osm_node_get_node_guid(p_sw->p_node)), 92 block, cl_ntoh16(lid)); 93 94 memset(p_rec_item, 0, SA_LFTR_RESP_SIZE); 95 96 p_rec_item->resp.lft_rec.lid = lid; 97 p_rec_item->resp.lft_rec.block_num = cl_hton16(block); 98 99 /* copy the lft block */ 100 osm_switch_get_lft_block(p_sw, block, p_rec_item->resp.lft_rec.lft); 101 102 cl_qlist_insert_tail(p_list, &p_rec_item->list_item); 103 104 Exit: 105 OSM_LOG_EXIT(sa->p_log); 106 return status; 107 } 108 109 static void lftr_rcv_by_comp_mask(IN cl_map_item_t * p_map_item, IN void *cxt) 110 { 111 const osm_lftr_search_ctxt_t *p_ctxt = cxt; 112 const osm_switch_t *p_sw = (osm_switch_t *) p_map_item; 113 const ib_lft_record_t *const p_rcvd_rec = p_ctxt->p_rcvd_rec; 114 osm_sa_t *sa = p_ctxt->sa; 115 ib_net64_t const comp_mask = p_ctxt->comp_mask; 116 const osm_physp_t *const p_req_physp = p_ctxt->p_req_physp; 117 osm_port_t *p_port; 118 uint16_t min_lid_ho, max_lid_ho; 119 uint16_t min_block, max_block, block; 120 const osm_physp_t *p_physp; 121 122 /* In switches, the port guid is the node guid. */ 123 p_port = osm_get_port_by_guid(sa->p_subn, 124 p_sw->p_node->node_info.port_guid); 125 if (!p_port) { 126 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4405: " 127 "Failed to find Port by Node Guid:0x%016" PRIx64 128 "\n", cl_ntoh64(p_sw->p_node->node_info.node_guid)); 129 return; 130 } 131 132 /* check that the requester physp and the current physp are under 133 the same partition. */ 134 p_physp = p_port->p_physp; 135 if (!p_physp) { 136 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4406: " 137 "Failed to find default physical Port by Node Guid:0x%016" 138 PRIx64 "\n", 139 cl_ntoh64(p_sw->p_node->node_info.node_guid)); 140 return; 141 } 142 if (!osm_physp_share_pkey(sa->p_log, p_req_physp, 143 p_physp, sa->p_subn->opt.allow_both_pkeys)) 144 return; 145 146 /* get the port 0 of the switch */ 147 osm_port_get_lid_range_ho(p_port, &min_lid_ho, &max_lid_ho); 148 149 /* compare the lids - if required */ 150 if (comp_mask & IB_LFTR_COMPMASK_LID) { 151 OSM_LOG(sa->p_log, OSM_LOG_DEBUG, 152 "Comparing lid:%u to port lid range: %u .. %u\n", 153 cl_ntoh16(p_rcvd_rec->lid), min_lid_ho, max_lid_ho); 154 /* ok we are ready for range check */ 155 if (min_lid_ho > cl_ntoh16(p_rcvd_rec->lid) || 156 max_lid_ho < cl_ntoh16(p_rcvd_rec->lid)) 157 return; 158 } 159 160 /* now we need to decide which blocks to output */ 161 max_block = osm_switch_get_max_block_id_in_use(p_sw); 162 if (comp_mask & IB_LFTR_COMPMASK_BLOCK) { 163 min_block = cl_ntoh16(p_rcvd_rec->block_num); 164 if (min_block > max_block) 165 return; 166 max_block = min_block; 167 } else /* use as many blocks as "in use" */ 168 min_block = 0; 169 170 /* so we can add these blocks one by one ... */ 171 for (block = min_block; block <= max_block; block++) 172 lftr_rcv_new_lftr(sa, p_sw, p_ctxt->p_list, 173 osm_port_get_base_lid(p_port), block); 174 } 175 176 void osm_lftr_rcv_process(IN void *ctx, IN void *data) 177 { 178 osm_sa_t *sa = ctx; 179 osm_madw_t *p_madw = data; 180 const ib_sa_mad_t *p_rcvd_mad; 181 const ib_lft_record_t *p_rcvd_rec; 182 cl_qlist_t rec_list; 183 osm_lftr_search_ctxt_t context; 184 osm_physp_t *p_req_physp; 185 186 CL_ASSERT(sa); 187 188 OSM_LOG_ENTER(sa->p_log); 189 190 CL_ASSERT(p_madw); 191 192 p_rcvd_mad = osm_madw_get_sa_mad_ptr(p_madw); 193 p_rcvd_rec = (ib_lft_record_t *) ib_sa_mad_get_payload_ptr(p_rcvd_mad); 194 195 CL_ASSERT(p_rcvd_mad->attr_id == IB_MAD_ATTR_LFT_RECORD); 196 197 /* we only support SubnAdmGet and SubnAdmGetTable methods */ 198 if (p_rcvd_mad->method != IB_MAD_METHOD_GET && 199 p_rcvd_mad->method != IB_MAD_METHOD_GETTABLE) { 200 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4408: " 201 "Unsupported Method (%s) for LFTRecord request\n", 202 ib_get_sa_method_str(p_rcvd_mad->method)); 203 osm_sa_send_error(sa, p_madw, IB_MAD_STATUS_UNSUP_METHOD_ATTR); 204 goto Exit; 205 } 206 207 cl_plock_acquire(sa->p_lock); 208 209 /* update the requester physical port */ 210 p_req_physp = osm_get_physp_by_mad_addr(sa->p_log, sa->p_subn, 211 osm_madw_get_mad_addr_ptr 212 (p_madw)); 213 if (p_req_physp == NULL) { 214 cl_plock_release(sa->p_lock); 215 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4407: " 216 "Cannot find requester physical port\n"); 217 goto Exit; 218 } 219 220 OSM_LOG(sa->p_log, OSM_LOG_DEBUG, 221 "Requester port GUID 0x%" PRIx64 "\n", 222 cl_ntoh64(osm_physp_get_port_guid(p_req_physp))); 223 224 cl_qlist_init(&rec_list); 225 226 context.p_rcvd_rec = p_rcvd_rec; 227 context.p_list = &rec_list; 228 context.comp_mask = p_rcvd_mad->comp_mask; 229 context.sa = sa; 230 context.p_req_physp = p_req_physp; 231 232 /* Go over all switches */ 233 cl_qmap_apply_func(&sa->p_subn->sw_guid_tbl, lftr_rcv_by_comp_mask, 234 &context); 235 236 cl_plock_release(sa->p_lock); 237 238 osm_sa_respond(sa, p_madw, sizeof(ib_lft_record_t), &rec_list); 239 240 Exit: 241 OSM_LOG_EXIT(sa->p_log); 242 } 243