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) 2010 HNR Consulting. All rights reserved. 6 * Copyright (c) 2010 Sun Microsystems, Inc. All rights reserved. 7 * 8 * This software is available to you under a choice of one of two 9 * licenses. You may choose to be licensed under the terms of the GNU 10 * General Public License (GPL) Version 2, available from the file 11 * COPYING in the main directory of this source tree, or the 12 * OpenIB.org BSD license below: 13 * 14 * Redistribution and use in source and binary forms, with or 15 * without modification, are permitted provided that the following 16 * conditions are met: 17 * 18 * - Redistributions of source code must retain the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer. 21 * 22 * - Redistributions in binary form must reproduce the above 23 * copyright notice, this list of conditions and the following 24 * disclaimer in the documentation and/or other materials 25 * provided with the distribution. 26 * 27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 28 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 30 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 31 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 32 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 33 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 34 * SOFTWARE. 35 * 36 */ 37 38 /* 39 * Abstract: 40 * Implementation of osm_vla_rcv_t. 41 * This object represents the Vl Arbitration Receiver object. 42 * This object is part of the opensm family of objects. 43 */ 44 45 #if HAVE_CONFIG_H 46 # include <config.h> 47 #endif /* HAVE_CONFIG_H */ 48 49 #include <string.h> 50 #include <iba/ib_types.h> 51 #include <complib/cl_passivelock.h> 52 #include <complib/cl_debug.h> 53 #include <opensm/osm_file_ids.h> 54 #define FILE_ID OSM_FILE_VL_ARB_RCV_C 55 #include <opensm/osm_madw.h> 56 #include <opensm/osm_log.h> 57 #include <opensm/osm_node.h> 58 #include <opensm/osm_subnet.h> 59 #include <opensm/osm_helper.h> 60 #include <opensm/osm_sm.h> 61 62 /* 63 * WE ONLY RECEIVE GET or SET responses 64 */ 65 void osm_vla_rcv_process(IN void *context, IN void *data) 66 { 67 osm_sm_t *sm = context; 68 osm_madw_t *p_madw = data; 69 ib_vl_arb_table_t *p_vla_tbl; 70 ib_smp_t *p_smp; 71 osm_port_t *p_port; 72 osm_physp_t *p_physp; 73 osm_node_t *p_node; 74 osm_vla_context_t *p_context; 75 ib_net64_t port_guid; 76 ib_net64_t node_guid; 77 uint8_t port_num, block_num; 78 79 CL_ASSERT(sm); 80 81 OSM_LOG_ENTER(sm->p_log); 82 83 CL_ASSERT(p_madw); 84 85 p_smp = osm_madw_get_smp_ptr(p_madw); 86 87 p_context = osm_madw_get_vla_context_ptr(p_madw); 88 p_vla_tbl = ib_smp_get_payload_ptr(p_smp); 89 90 port_guid = p_context->port_guid; 91 node_guid = p_context->node_guid; 92 93 CL_ASSERT(p_smp->attr_id == IB_MAD_ATTR_VL_ARBITRATION); 94 95 if (ib_smp_get_status(p_smp)) { 96 OSM_LOG(sm->p_log, OSM_LOG_DEBUG, 97 "MAD status 0x%x received\n", 98 cl_ntoh16(ib_smp_get_status(p_smp))); 99 goto Exit2; 100 } 101 102 cl_plock_excl_acquire(sm->p_lock); 103 p_port = osm_get_port_by_guid(sm->p_subn, port_guid); 104 if (!p_port) { 105 OSM_LOG(sm->p_log, OSM_LOG_ERROR, "ERR 3F06: " 106 "No port object for port with GUID 0x%" PRIx64 107 "\n\t\t\t\tfor parent node GUID 0x%" PRIx64 108 ", TID 0x%" PRIx64 "\n", cl_ntoh64(port_guid), 109 cl_ntoh64(node_guid), cl_ntoh64(p_smp->trans_id)); 110 goto Exit; 111 } 112 113 p_node = p_port->p_node; 114 CL_ASSERT(p_node); 115 116 block_num = (uint8_t) (cl_ntoh32(p_smp->attr_mod) >> 16); 117 /* in case of a non switch node the attr modifier should be ignored */ 118 if (osm_node_get_type(p_node) == IB_NODE_TYPE_SWITCH) { 119 port_num = (uint8_t) (cl_ntoh32(p_smp->attr_mod) & 0x000000FF); 120 p_physp = osm_node_get_physp_ptr(p_node, port_num); 121 } else { 122 p_physp = p_port->p_physp; 123 port_num = p_physp->port_num; 124 } 125 126 /* 127 We do not care if this is a result of a set or get - 128 all we want is to update the subnet. 129 */ 130 OSM_LOG(sm->p_log, OSM_LOG_VERBOSE, 131 "Got GetResp(VLArb) block:%u port_num %u with GUID 0x%" 132 PRIx64 " for parent node GUID 0x%" PRIx64 ", TID 0x%" 133 PRIx64 "\n", block_num, port_num, cl_ntoh64(port_guid), 134 cl_ntoh64(node_guid), cl_ntoh64(p_smp->trans_id)); 135 136 /* 137 Determine if we encountered a new Physical Port. 138 If so, Ignore it. 139 */ 140 if (!p_physp) { 141 OSM_LOG(sm->p_log, OSM_LOG_ERROR, 142 "Got invalid port number %u\n", port_num); 143 goto Exit; 144 } 145 146 if ((block_num < 1) || (block_num > 4)) { 147 OSM_LOG(sm->p_log, OSM_LOG_ERROR, 148 "Got invalid block number 0x%X\n", block_num); 149 goto Exit; 150 } 151 152 osm_dump_vl_arb_table_v2(sm->p_log, port_guid, block_num, port_num, 153 p_vla_tbl, FILE_ID, OSM_LOG_DEBUG); 154 osm_physp_set_vla_tbl(p_physp, p_vla_tbl, block_num); 155 156 Exit: 157 cl_plock_release(sm->p_lock); 158 159 Exit2: 160 OSM_LOG_EXIT(sm->p_log); 161 } 162