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 * 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_vlarb_rec_rcv_t. 40 * This object represents the VLArbitrationRecord 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_qmap.h> 51#include <complib/cl_passivelock.h> 52#include <complib/cl_debug.h> 53#include <complib/cl_qlist.h> 54#include <opensm/osm_file_ids.h> 55#define FILE_ID OSM_FILE_SA_VLARB_RECORD_C 56#include <vendor/osm_vendor_api.h> 57#include <opensm/osm_port.h> 58#include <opensm/osm_node.h> 59#include <opensm/osm_helper.h> 60#include <opensm/osm_pkey.h> 61#include <opensm/osm_sa.h> 62 63#define SA_VLA_RESP_SIZE SA_ITEM_RESP_SIZE(vlarb_rec) 64 65typedef struct osm_vl_arb_search_ctxt { 66 const ib_vl_arb_table_record_t *p_rcvd_rec; 67 ib_net64_t comp_mask; 68 uint8_t block_num; 69 cl_qlist_t *p_list; 70 osm_sa_t *sa; 71 const osm_physp_t *p_req_physp; 72} osm_vl_arb_search_ctxt_t; 73 74static void sa_vl_arb_create(IN osm_sa_t * sa, IN osm_physp_t * p_physp, 75 IN osm_vl_arb_search_ctxt_t * p_ctxt, 76 IN uint8_t block) 77{ 78 osm_sa_item_t *p_rec_item; 79 uint16_t lid; 80 81 OSM_LOG_ENTER(sa->p_log); 82 83 p_rec_item = malloc(SA_VLA_RESP_SIZE); 84 if (p_rec_item == NULL) { 85 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 2A02: " 86 "rec_item alloc failed\n"); 87 goto Exit; 88 } 89 90 if (p_physp->p_node->node_info.node_type != IB_NODE_TYPE_SWITCH) 91 lid = p_physp->port_info.base_lid; 92 else 93 lid = osm_node_get_base_lid(p_physp->p_node, 0); 94 95 OSM_LOG(sa->p_log, OSM_LOG_DEBUG, 96 "New VLArbitration for: port 0x%016" PRIx64 97 ", lid %u, port %u Block:%u\n", 98 cl_ntoh64(osm_physp_get_port_guid(p_physp)), 99 cl_ntoh16(lid), osm_physp_get_port_num(p_physp), block); 100 101 memset(p_rec_item, 0, SA_VLA_RESP_SIZE); 102 103 p_rec_item->resp.vlarb_rec.lid = lid; 104 p_rec_item->resp.vlarb_rec.port_num = osm_physp_get_port_num(p_physp); 105 p_rec_item->resp.vlarb_rec.block_num = block; 106 p_rec_item->resp.vlarb_rec.vl_arb_tbl = *(osm_physp_get_vla_tbl(p_physp, block)); 107 108 cl_qlist_insert_tail(p_ctxt->p_list, &p_rec_item->list_item); 109 110Exit: 111 OSM_LOG_EXIT(sa->p_log); 112} 113 114static void sa_vl_arb_check_physp(IN osm_sa_t * sa, IN osm_physp_t * p_physp, 115 osm_vl_arb_search_ctxt_t * p_ctxt) 116{ 117 ib_net64_t comp_mask = p_ctxt->comp_mask; 118 uint8_t block; 119 120 OSM_LOG_ENTER(sa->p_log); 121 122 /* we got here with the phys port - all that's left is to get the right block */ 123 for (block = 1; block <= 4; block++) { 124 if (!(comp_mask & IB_VLA_COMPMASK_BLOCK) 125 || block == p_ctxt->block_num) 126 sa_vl_arb_create(sa, p_physp, p_ctxt, block); 127 } 128 129 OSM_LOG_EXIT(sa->p_log); 130} 131 132static void sa_vl_arb_by_comp_mask(osm_sa_t * sa, IN const osm_port_t * p_port, 133 osm_vl_arb_search_ctxt_t * p_ctxt) 134{ 135 const ib_vl_arb_table_record_t *p_rcvd_rec; 136 ib_net64_t comp_mask; 137 osm_physp_t *p_physp; 138 uint8_t port_num; 139 uint8_t num_ports; 140 const osm_physp_t *p_req_physp; 141 142 OSM_LOG_ENTER(sa->p_log); 143 144 p_rcvd_rec = p_ctxt->p_rcvd_rec; 145 comp_mask = p_ctxt->comp_mask; 146 port_num = p_rcvd_rec->port_num; 147 p_req_physp = p_ctxt->p_req_physp; 148 149 /* if this is a switch port we can search all ports 150 otherwise we must be looking on port 0 */ 151 if (p_port->p_node->node_info.node_type != IB_NODE_TYPE_SWITCH) { 152 /* we put it in the comp mask and port num */ 153 port_num = p_port->p_physp->port_num; 154 OSM_LOG(sa->p_log, OSM_LOG_DEBUG, 155 "Using Physical Default Port Number: 0x%X (for End Node)\n", 156 port_num); 157 comp_mask |= IB_VLA_COMPMASK_OUT_PORT; 158 } 159 160 if (comp_mask & IB_VLA_COMPMASK_OUT_PORT) { 161 if (port_num < osm_node_get_num_physp(p_port->p_node)) { 162 p_physp = 163 osm_node_get_physp_ptr(p_port->p_node, port_num); 164 /* check that the p_physp is valid, and that the requester 165 and the p_physp share a pkey. */ 166 if (p_physp && 167 osm_physp_share_pkey(sa->p_log, p_req_physp, p_physp, 168 sa->p_subn->opt.allow_both_pkeys)) 169 sa_vl_arb_check_physp(sa, p_physp, p_ctxt); 170 } else { 171 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 2A03: " 172 "Given Physical Port Number: 0x%X is out of range should be < 0x%X\n", 173 port_num, 174 osm_node_get_num_physp(p_port->p_node)); 175 goto Exit; 176 } 177 } else { 178 num_ports = osm_node_get_num_physp(p_port->p_node); 179 for (port_num = 0; port_num < num_ports; port_num++) { 180 p_physp = 181 osm_node_get_physp_ptr(p_port->p_node, port_num); 182 if (!p_physp) 183 continue; 184 185 /* if the requester and the p_physp don't share a pkey - 186 continue */ 187 if (!osm_physp_share_pkey(sa->p_log, p_req_physp, p_physp, 188 sa->p_subn->opt.allow_both_pkeys)) 189 continue; 190 191 sa_vl_arb_check_physp(sa, p_physp, p_ctxt); 192 } 193 } 194Exit: 195 OSM_LOG_EXIT(sa->p_log); 196} 197 198static void sa_vl_arb_by_comp_mask_cb(IN cl_map_item_t * p_map_item, void *cxt) 199{ 200 const osm_port_t *p_port = (osm_port_t *) p_map_item; 201 osm_vl_arb_search_ctxt_t *p_ctxt = cxt; 202 203 sa_vl_arb_by_comp_mask(p_ctxt->sa, p_port, p_ctxt); 204} 205 206void osm_vlarb_rec_rcv_process(IN void *ctx, IN void *data) 207{ 208 osm_sa_t *sa = ctx; 209 osm_madw_t *p_madw = data; 210 const ib_sa_mad_t *sad_mad; 211 const ib_vl_arb_table_record_t *p_rcvd_rec; 212 const osm_port_t *p_port = NULL; 213 cl_qlist_t rec_list; 214 osm_vl_arb_search_ctxt_t context; 215 ib_api_status_t status = IB_SUCCESS; 216 ib_net64_t comp_mask; 217 osm_physp_t *p_req_physp; 218 219 CL_ASSERT(sa); 220 221 OSM_LOG_ENTER(sa->p_log); 222 223 CL_ASSERT(p_madw); 224 225 sad_mad = osm_madw_get_sa_mad_ptr(p_madw); 226 p_rcvd_rec = 227 (ib_vl_arb_table_record_t *) ib_sa_mad_get_payload_ptr(sad_mad); 228 comp_mask = sad_mad->comp_mask; 229 230 CL_ASSERT(sad_mad->attr_id == IB_MAD_ATTR_VLARB_RECORD); 231 232 /* we only support SubnAdmGet and SubnAdmGetTable methods */ 233 if (sad_mad->method != IB_MAD_METHOD_GET && 234 sad_mad->method != IB_MAD_METHOD_GETTABLE) { 235 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 2A05: " 236 "Unsupported Method (%s) for a VLArbRecord request\n", 237 ib_get_sa_method_str(sad_mad->method)); 238 osm_sa_send_error(sa, p_madw, IB_MAD_STATUS_UNSUP_METHOD_ATTR); 239 goto Exit; 240 } 241 242 cl_plock_acquire(sa->p_lock); 243 244 /* update the requester physical port */ 245 p_req_physp = osm_get_physp_by_mad_addr(sa->p_log, sa->p_subn, 246 osm_madw_get_mad_addr_ptr 247 (p_madw)); 248 if (p_req_physp == NULL) { 249 cl_plock_release(sa->p_lock); 250 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 2A04: " 251 "Cannot find requester physical port\n"); 252 goto Exit; 253 } 254 OSM_LOG(sa->p_log, OSM_LOG_DEBUG, 255 "Requester port GUID 0x%" PRIx64 "\n", 256 cl_ntoh64(osm_physp_get_port_guid(p_req_physp))); 257 258 cl_qlist_init(&rec_list); 259 260 context.p_rcvd_rec = p_rcvd_rec; 261 context.p_list = &rec_list; 262 context.comp_mask = sad_mad->comp_mask; 263 context.sa = sa; 264 context.block_num = p_rcvd_rec->block_num; 265 context.p_req_physp = p_req_physp; 266 267 OSM_LOG(sa->p_log, OSM_LOG_DEBUG, 268 "Got Query Lid:%u(%02X), Port:0x%02X(%02X), Block:0x%02X(%02X)\n", 269 cl_ntoh16(p_rcvd_rec->lid), 270 (comp_mask & IB_VLA_COMPMASK_LID) != 0, p_rcvd_rec->port_num, 271 (comp_mask & IB_VLA_COMPMASK_OUT_PORT) != 0, 272 p_rcvd_rec->block_num, 273 (comp_mask & IB_VLA_COMPMASK_BLOCK) != 0); 274 275 /* 276 If the user specified a LID, it obviously narrows our 277 work load, since we don't have to search every port 278 */ 279 if (comp_mask & IB_VLA_COMPMASK_LID) { 280 p_port = osm_get_port_by_lid(sa->p_subn, p_rcvd_rec->lid); 281 if (!p_port) { 282 status = IB_NOT_FOUND; 283 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 2A09: " 284 "No port found with LID %u\n", 285 cl_ntoh16(p_rcvd_rec->lid)); 286 } 287 } 288 289 if (status == IB_SUCCESS) { 290 /* if we got a unique port - no need for a port search */ 291 if (p_port) 292 /* this does the loop on all the port phys ports */ 293 sa_vl_arb_by_comp_mask(sa, p_port, &context); 294 else 295 cl_qmap_apply_func(&sa->p_subn->port_guid_tbl, 296 sa_vl_arb_by_comp_mask_cb, &context); 297 } 298 299 cl_plock_release(sa->p_lock); 300 301 osm_sa_respond(sa, p_madw, sizeof(ib_vl_arb_table_record_t), &rec_list); 302 303Exit: 304 OSM_LOG_EXIT(sa->p_log); 305} 306