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_mftr_rcv_t. 39 * This object represents the MulticastForwardingTable 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_mftr_item { 58 cl_list_item_t list_item; 59 ib_mft_record_t rec; 60} osm_mftr_item_t; 61 62typedef struct osm_mftr_search_ctxt { 63 const ib_mft_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_mftr_search_ctxt_t; 69 70/********************************************************************** 71 **********************************************************************/ 72static ib_api_status_t 73__osm_mftr_rcv_new_mftr(IN osm_sa_t * sa, 74 IN osm_switch_t * const p_sw, 75 IN cl_qlist_t * const p_list, 76 IN ib_net16_t const lid, 77 IN uint16_t const block, IN uint8_t const position) 78{ 79 osm_mftr_item_t *p_rec_item; 80 ib_api_status_t status = IB_SUCCESS; 81 uint16_t position_block_num; 82 83 OSM_LOG_ENTER(sa->p_log); 84 85 p_rec_item = malloc(sizeof(*p_rec_item)); 86 if (p_rec_item == NULL) { 87 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4A02: " 88 "rec_item alloc failed\n"); 89 status = IB_INSUFFICIENT_RESOURCES; 90 goto Exit; 91 } 92 93 OSM_LOG(sa->p_log, OSM_LOG_DEBUG, 94 "New MulticastForwardingTable: sw 0x%016" PRIx64 95 "\n\t\t\t\tblock %u position %u lid %u\n", 96 cl_ntoh64(osm_node_get_node_guid(p_sw->p_node)), 97 block, position, cl_ntoh16(lid)); 98 99 position_block_num = ((uint16_t) position << 12) | 100 (block & IB_MCAST_BLOCK_ID_MASK_HO); 101 102 memset(p_rec_item, 0, sizeof(*p_rec_item)); 103 104 p_rec_item->rec.lid = lid; 105 p_rec_item->rec.position_block_num = cl_hton16(position_block_num); 106 107 /* copy the mft block */ 108 osm_switch_get_mft_block(p_sw, block, position, p_rec_item->rec.mft); 109 110 cl_qlist_insert_tail(p_list, &p_rec_item->list_item); 111 112Exit: 113 OSM_LOG_EXIT(sa->p_log); 114 return (status); 115} 116 117/********************************************************************** 118 **********************************************************************/ 119static void 120__osm_mftr_rcv_by_comp_mask(IN cl_map_item_t * const p_map_item, 121 IN void *context) 122{ 123 const osm_mftr_search_ctxt_t *const p_ctxt = 124 (osm_mftr_search_ctxt_t *) context; 125 osm_switch_t *const p_sw = (osm_switch_t *) p_map_item; 126 const ib_mft_record_t *const p_rcvd_rec = p_ctxt->p_rcvd_rec; 127 osm_sa_t *sa = p_ctxt->sa; 128 ib_net64_t const comp_mask = p_ctxt->comp_mask; 129 const osm_physp_t *const p_req_physp = p_ctxt->p_req_physp; 130 osm_port_t *p_port; 131 uint16_t min_lid_ho, max_lid_ho; 132 uint16_t position_block_num_ho; 133 uint16_t min_block, max_block, block; 134 const osm_physp_t *p_physp; 135 uint8_t min_position, max_position, position; 136 137 /* In switches, the port guid is the node guid. */ 138 p_port = 139 osm_get_port_by_guid(sa->p_subn, p_sw->p_node->node_info.port_guid); 140 if (!p_port) { 141 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4A05: " 142 "Failed to find Port by Node Guid:0x%016" PRIx64 143 "\n", cl_ntoh64(p_sw->p_node->node_info.node_guid)); 144 return; 145 } 146 147 /* check that the requester physp and the current physp are under 148 the same partition. */ 149 p_physp = p_port->p_physp; 150 if (!p_physp) { 151 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4A06: " 152 "Failed to find default physical Port by Node Guid:0x%016" 153 PRIx64 "\n", 154 cl_ntoh64(p_sw->p_node->node_info.node_guid)); 155 return; 156 } 157 if (!osm_physp_share_pkey(sa->p_log, p_req_physp, p_physp)) 158 return; 159 160 /* get the port 0 of the switch */ 161 osm_port_get_lid_range_ho(p_port, &min_lid_ho, &max_lid_ho); 162 163 /* compare the lids - if required */ 164 if (comp_mask & IB_MFTR_COMPMASK_LID) { 165 OSM_LOG(sa->p_log, OSM_LOG_DEBUG, 166 "Comparing lid:%u to port lid range: %u .. %u\n", 167 cl_ntoh16(p_rcvd_rec->lid), min_lid_ho, max_lid_ho); 168 /* ok we are ready for range check */ 169 if (min_lid_ho > cl_ntoh16(p_rcvd_rec->lid) || 170 max_lid_ho < cl_ntoh16(p_rcvd_rec->lid)) 171 return; 172 } 173 174 if (!osm_switch_supports_mcast(p_sw)) 175 return; 176 177 /* Are there any blocks in use ? */ 178 if (osm_switch_get_mft_max_block_in_use(p_sw) == -1) 179 return; 180 181 position_block_num_ho = cl_ntoh16(p_rcvd_rec->position_block_num); 182 183 /* now we need to decide which blocks to output */ 184 if (comp_mask & IB_MFTR_COMPMASK_BLOCK) { 185 max_block = min_block = 186 position_block_num_ho & IB_MCAST_BLOCK_ID_MASK_HO; 187 if (max_block > osm_switch_get_mft_max_block_in_use(p_sw)) 188 return; 189 } else { 190 /* use as many blocks as needed */ 191 min_block = 0; 192 max_block = osm_switch_get_mft_max_block_in_use(p_sw); 193 } 194 195 /* need to decide which positions to output */ 196 if (comp_mask & IB_MFTR_COMPMASK_POSITION) { 197 min_position = max_position = 198 (position_block_num_ho & 0xF000) >> 12; 199 if (max_position > osm_switch_get_mft_max_position(p_sw)) 200 return; 201 } else { 202 /* use as many positions as needed */ 203 min_position = 0; 204 max_position = osm_switch_get_mft_max_position(p_sw); 205 } 206 207 /* so we can add these one by one ... */ 208 for (block = min_block; block <= max_block; block++) 209 for (position = min_position; position <= max_position; 210 position++) 211 __osm_mftr_rcv_new_mftr(sa, p_sw, p_ctxt->p_list, 212 osm_port_get_base_lid(p_port), 213 block, position); 214} 215 216/********************************************************************** 217 **********************************************************************/ 218void osm_mftr_rcv_process(IN void *ctx, IN void *data) 219{ 220 osm_sa_t *sa = ctx; 221 osm_madw_t *p_madw = data; 222 const ib_sa_mad_t *p_rcvd_mad; 223 const ib_mft_record_t *p_rcvd_rec; 224 cl_qlist_t rec_list; 225 osm_mftr_search_ctxt_t context; 226 osm_physp_t *p_req_physp; 227 228 CL_ASSERT(sa); 229 230 OSM_LOG_ENTER(sa->p_log); 231 232 CL_ASSERT(p_madw); 233 234 p_rcvd_mad = osm_madw_get_sa_mad_ptr(p_madw); 235 p_rcvd_rec = (ib_mft_record_t *) ib_sa_mad_get_payload_ptr(p_rcvd_mad); 236 237 CL_ASSERT(p_rcvd_mad->attr_id == IB_MAD_ATTR_MFT_RECORD); 238 239 /* we only support SubnAdmGet and SubnAdmGetTable methods */ 240 if (p_rcvd_mad->method != IB_MAD_METHOD_GET && 241 p_rcvd_mad->method != IB_MAD_METHOD_GETTABLE) { 242 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4A08: " 243 "Unsupported Method (%s)\n", 244 ib_get_sa_method_str(p_rcvd_mad->method)); 245 osm_sa_send_error(sa, p_madw, IB_MAD_STATUS_UNSUP_METHOD_ATTR); 246 goto Exit; 247 } 248 249 /* update the requester physical port. */ 250 p_req_physp = osm_get_physp_by_mad_addr(sa->p_log, 251 sa->p_subn, 252 osm_madw_get_mad_addr_ptr 253 (p_madw)); 254 if (p_req_physp == NULL) { 255 OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4A07: " 256 "Cannot find requester physical port\n"); 257 goto Exit; 258 } 259 260 cl_qlist_init(&rec_list); 261 262 context.p_rcvd_rec = p_rcvd_rec; 263 context.p_list = &rec_list; 264 context.comp_mask = p_rcvd_mad->comp_mask; 265 context.sa = sa; 266 context.p_req_physp = p_req_physp; 267 268 cl_plock_acquire(sa->p_lock); 269 270 /* Go over all switches */ 271 cl_qmap_apply_func(&sa->p_subn->sw_guid_tbl, 272 __osm_mftr_rcv_by_comp_mask, &context); 273 274 cl_plock_release(sa->p_lock); 275 276 osm_sa_respond(sa, p_madw, sizeof(ib_mft_record_t), &rec_list); 277 278Exit: 279 OSM_LOG_EXIT(sa->p_log); 280} 281