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/*
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* Copyright (c) 2004-2009 Voltaire, Inc. All rights reserved.
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* Copyright (c) 2002-2005,2008 Mellanox Technologies LTD. All rights reserved.
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* Copyright (c) 1996-2003 Intel Corporation. All rights reserved.
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* Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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/*
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* Abstract:
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* Implementation of osm_lftr_rcv_t.
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* This object represents the LinearForwardingTable Receiver object.
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* This object is part of the opensm family of objects.
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*/
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#if HAVE_CONFIG_H
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# include <config.h>
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#endif /* HAVE_CONFIG_H */
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#include <string.h>
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#include <iba/ib_types.h>
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#include <complib/cl_debug.h>
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#include <complib/cl_qlist.h>
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#include <opensm/osm_file_ids.h>
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#define FILE_ID OSM_FILE_SA_LFT_RECORD_C
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#include <vendor/osm_vendor_api.h>
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#include <opensm/osm_switch.h>
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#include <opensm/osm_helper.h>
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#include <opensm/osm_pkey.h>
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#include <opensm/osm_sa.h>
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#define SA_LFTR_RESP_SIZE SA_ITEM_RESP_SIZE(lft_rec)
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typedef struct osm_lftr_search_ctxt {
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const ib_lft_record_t *p_rcvd_rec;
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ib_net64_t comp_mask;
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cl_qlist_t *p_list;
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osm_sa_t *sa;
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const osm_physp_t *p_req_physp;
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} osm_lftr_search_ctxt_t;
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static ib_api_status_t lftr_rcv_new_lftr(IN osm_sa_t * sa,
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IN const osm_switch_t * p_sw,
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IN cl_qlist_t * p_list,
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IN ib_net16_t lid, IN uint16_t block)
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{
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osm_sa_item_t *p_rec_item;
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ib_api_status_t status = IB_SUCCESS;
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OSM_LOG_ENTER(sa->p_log);
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p_rec_item = malloc(SA_LFTR_RESP_SIZE);
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if (p_rec_item == NULL) {
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OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4402: "
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"rec_item alloc failed\n");
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status = IB_INSUFFICIENT_RESOURCES;
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goto Exit;
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}
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OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
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"New LinearForwardingTable: sw 0x%016" PRIx64
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"\n\t\t\t\tblock 0x%02X lid %u\n",
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cl_ntoh64(osm_node_get_node_guid(p_sw->p_node)),
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block, cl_ntoh16(lid));
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memset(p_rec_item, 0, SA_LFTR_RESP_SIZE);
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p_rec_item->resp.lft_rec.lid = lid;
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p_rec_item->resp.lft_rec.block_num = cl_hton16(block);
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/* copy the lft block */
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osm_switch_get_lft_block(p_sw, block, p_rec_item->resp.lft_rec.lft);
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cl_qlist_insert_tail(p_list, &p_rec_item->list_item);
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Exit:
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OSM_LOG_EXIT(sa->p_log);
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return status;
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}
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static void lftr_rcv_by_comp_mask(IN cl_map_item_t * p_map_item, IN void *cxt)
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{
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const osm_lftr_search_ctxt_t *p_ctxt = cxt;
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const osm_switch_t *p_sw = (osm_switch_t *) p_map_item;
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const ib_lft_record_t *const p_rcvd_rec = p_ctxt->p_rcvd_rec;
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osm_sa_t *sa = p_ctxt->sa;
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ib_net64_t const comp_mask = p_ctxt->comp_mask;
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const osm_physp_t *const p_req_physp = p_ctxt->p_req_physp;
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osm_port_t *p_port;
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uint16_t min_lid_ho, max_lid_ho;
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uint16_t min_block, max_block, block;
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const osm_physp_t *p_physp;
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/* In switches, the port guid is the node guid. */
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p_port = osm_get_port_by_guid(sa->p_subn,
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p_sw->p_node->node_info.port_guid);
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if (!p_port) {
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OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4405: "
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"Failed to find Port by Node Guid:0x%016" PRIx64
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"\n", cl_ntoh64(p_sw->p_node->node_info.node_guid));
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return;
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}
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/* check that the requester physp and the current physp are under
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the same partition. */
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p_physp = p_port->p_physp;
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if (!p_physp) {
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OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4406: "
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"Failed to find default physical Port by Node Guid:0x%016"
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PRIx64 "\n",
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cl_ntoh64(p_sw->p_node->node_info.node_guid));
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return;
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}
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if (!osm_physp_share_pkey(sa->p_log, p_req_physp,
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p_physp, sa->p_subn->opt.allow_both_pkeys))
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return;
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/* get the port 0 of the switch */
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osm_port_get_lid_range_ho(p_port, &min_lid_ho, &max_lid_ho);
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/* compare the lids - if required */
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if (comp_mask & IB_LFTR_COMPMASK_LID) {
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OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
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"Comparing lid:%u to port lid range: %u .. %u\n",
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cl_ntoh16(p_rcvd_rec->lid), min_lid_ho, max_lid_ho);
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/* ok we are ready for range check */
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if (min_lid_ho > cl_ntoh16(p_rcvd_rec->lid) ||
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max_lid_ho < cl_ntoh16(p_rcvd_rec->lid))
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return;
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}
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/* now we need to decide which blocks to output */
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max_block = osm_switch_get_max_block_id_in_use(p_sw);
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if (comp_mask & IB_LFTR_COMPMASK_BLOCK) {
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min_block = cl_ntoh16(p_rcvd_rec->block_num);
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if (min_block > max_block)
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return;
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max_block = min_block;
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} else /* use as many blocks as "in use" */
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min_block = 0;
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/* so we can add these blocks one by one ... */
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for (block = min_block; block <= max_block; block++)
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lftr_rcv_new_lftr(sa, p_sw, p_ctxt->p_list,
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osm_port_get_base_lid(p_port), block);
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}
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void osm_lftr_rcv_process(IN void *ctx, IN void *data)
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{
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osm_sa_t *sa = ctx;
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osm_madw_t *p_madw = data;
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const ib_sa_mad_t *p_rcvd_mad;
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const ib_lft_record_t *p_rcvd_rec;
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cl_qlist_t rec_list;
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osm_lftr_search_ctxt_t context;
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osm_physp_t *p_req_physp;
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CL_ASSERT(sa);
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OSM_LOG_ENTER(sa->p_log);
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CL_ASSERT(p_madw);
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p_rcvd_mad = osm_madw_get_sa_mad_ptr(p_madw);
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p_rcvd_rec = (ib_lft_record_t *) ib_sa_mad_get_payload_ptr(p_rcvd_mad);
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CL_ASSERT(p_rcvd_mad->attr_id == IB_MAD_ATTR_LFT_RECORD);
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/* we only support SubnAdmGet and SubnAdmGetTable methods */
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if (p_rcvd_mad->method != IB_MAD_METHOD_GET &&
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p_rcvd_mad->method != IB_MAD_METHOD_GETTABLE) {
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OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4408: "
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"Unsupported Method (%s) for LFTRecord request\n",
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ib_get_sa_method_str(p_rcvd_mad->method));
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osm_sa_send_error(sa, p_madw, IB_MAD_STATUS_UNSUP_METHOD_ATTR);
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goto Exit;
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}
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cl_plock_acquire(sa->p_lock);
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/* update the requester physical port */
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p_req_physp = osm_get_physp_by_mad_addr(sa->p_log, sa->p_subn,
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osm_madw_get_mad_addr_ptr
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(p_madw));
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if (p_req_physp == NULL) {
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cl_plock_release(sa->p_lock);
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OSM_LOG(sa->p_log, OSM_LOG_ERROR, "ERR 4407: "
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"Cannot find requester physical port\n");
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goto Exit;
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}
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OSM_LOG(sa->p_log, OSM_LOG_DEBUG,
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"Requester port GUID 0x%" PRIx64 "\n",
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cl_ntoh64(osm_physp_get_port_guid(p_req_physp)));
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cl_qlist_init(&rec_list);
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context.p_rcvd_rec = p_rcvd_rec;
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context.p_list = &rec_list;
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context.comp_mask = p_rcvd_mad->comp_mask;
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context.sa = sa;
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context.p_req_physp = p_req_physp;
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/* Go over all switches */
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cl_qmap_apply_func(&sa->p_subn->sw_guid_tbl, lftr_rcv_by_comp_mask,
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&context);
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cl_plock_release(sa->p_lock);
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osm_sa_respond(sa, p_madw, sizeof(ib_lft_record_t), &rec_list);
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Exit:
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OSM_LOG_EXIT(sa->p_log);
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}
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