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/*
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* Copyright (c) 2004-2009 Voltaire, Inc. All rights reserved.
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* Copyright (c) 2002-2015 Mellanox Technologies LTD. All rights reserved.
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* Copyright (c) 1996-2003 Intel Corporation. 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_node_t.
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* This object represents an Infiniband Node.
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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 <stdlib.h>
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#include <iba/ib_types.h>
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#include <opensm/osm_file_ids.h>
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#define FILE_ID OSM_FILE_NODE_C
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#include <opensm/osm_node.h>
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#include <opensm/osm_madw.h>
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void osm_node_init_physp(IN osm_node_t * p_node, uint8_t port_num,
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IN const osm_madw_t * p_madw)
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{
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ib_net64_t port_guid;
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ib_smp_t *p_smp;
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ib_node_info_t *p_ni;
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p_smp = osm_madw_get_smp_ptr(p_madw);
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p_ni = ib_smp_get_payload_ptr(p_smp);
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port_guid = p_ni->port_guid;
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CL_ASSERT(port_num < p_node->physp_tbl_size);
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osm_physp_init(&p_node->physp_table[port_num],
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port_guid, port_num, p_node,
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osm_madw_get_bind_handle(p_madw),
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p_smp->hop_count, p_smp->initial_path);
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}
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osm_node_t *osm_node_new(IN const osm_madw_t * p_madw)
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{
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osm_node_t *p_node;
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ib_smp_t *p_smp;
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ib_node_info_t *p_ni;
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uint8_t i;
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uint32_t size;
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p_smp = osm_madw_get_smp_ptr(p_madw);
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p_ni = ib_smp_get_payload_ptr(p_smp);
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/*
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The node object already contains one physical port object.
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Therefore, subtract 1 from the number of physical ports
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used by the switch. This is not done for CA's since they
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need to occupy 1 more physp than they physically have since
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we still reserve room for a "port 0".
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*/
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size = p_ni->num_ports;
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p_node = malloc(sizeof(*p_node) + sizeof(osm_physp_t) * size);
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if (!p_node)
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return NULL;
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memset(p_node, 0, sizeof(*p_node) + sizeof(osm_physp_t) * size);
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p_node->node_info = *p_ni;
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p_node->physp_tbl_size = size + 1;
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p_node->physp_discovered = malloc(sizeof(uint8_t) * p_node->physp_tbl_size);
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if (!p_node->physp_discovered) {
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free(p_node);
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return NULL;
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}
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memset(p_node->physp_discovered, 0, sizeof(uint8_t) * p_node->physp_tbl_size);
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/*
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Construct Physical Port objects owned by this Node.
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Then, initialize the Physical Port through with we
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discovered this port.
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For switches, all ports have the same GUID.
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For CAs and routers, each port has a different GUID, so we only
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know the GUID for the port that responded to our
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Get(NodeInfo).
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*/
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for (i = 0; i < p_node->physp_tbl_size; i++)
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osm_physp_construct(&p_node->physp_table[i]);
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if (p_ni->node_type == IB_NODE_TYPE_SWITCH)
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for (i = 0; i <= p_ni->num_ports; i++)
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osm_node_init_physp(p_node, i, p_madw);
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else
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osm_node_init_physp(p_node,
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ib_node_info_get_local_port_num(p_ni),
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p_madw);
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p_node->print_desc = strdup(OSM_NODE_DESC_UNKNOWN);
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return p_node;
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}
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static void node_destroy(IN osm_node_t * p_node)
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{
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uint16_t i;
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/*
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Cleanup all physports
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*/
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for (i = 0; i < p_node->physp_tbl_size; i++)
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osm_physp_destroy(&p_node->physp_table[i]);
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/* cleanup printable node_desc field */
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if (p_node->print_desc)
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free(p_node->print_desc);
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/* cleanup physp_discovered array */
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free(p_node->physp_discovered);
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}
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void osm_node_delete(IN OUT osm_node_t ** p_node)
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{
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CL_ASSERT(p_node && *p_node);
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node_destroy(*p_node);
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free(*p_node);
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*p_node = NULL;
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}
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void osm_node_link(IN osm_node_t * p_node, IN uint8_t port_num,
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IN osm_node_t * p_remote_node, IN uint8_t remote_port_num)
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{
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osm_physp_t *p_physp;
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osm_physp_t *p_remote_physp;
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p_physp = osm_node_get_physp_ptr(p_node, port_num);
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p_remote_physp = osm_node_get_physp_ptr(p_remote_node, remote_port_num);
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if (p_physp->p_remote_physp)
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p_physp->p_remote_physp->p_remote_physp = NULL;
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if (p_remote_physp->p_remote_physp)
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p_remote_physp->p_remote_physp->p_remote_physp = NULL;
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osm_physp_link(p_physp, p_remote_physp);
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}
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void osm_node_unlink(IN osm_node_t * p_node, IN uint8_t port_num,
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IN osm_node_t * p_remote_node, IN uint8_t remote_port_num)
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{
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osm_physp_t *p_physp;
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osm_physp_t *p_remote_physp;
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CL_ASSERT(port_num < p_node->physp_tbl_size);
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CL_ASSERT(remote_port_num < p_remote_node->physp_tbl_size);
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if (osm_node_link_exists(p_node, port_num,
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p_remote_node, remote_port_num)) {
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p_physp = osm_node_get_physp_ptr(p_node, port_num);
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p_remote_physp =
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osm_node_get_physp_ptr(p_remote_node, remote_port_num);
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osm_physp_unlink(p_physp, p_remote_physp);
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}
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}
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boolean_t osm_node_link_exists(IN osm_node_t * p_node, IN uint8_t port_num,
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IN osm_node_t * p_remote_node,
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IN uint8_t remote_port_num)
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{
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osm_physp_t *p_physp;
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osm_physp_t *p_remote_physp;
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CL_ASSERT(port_num < p_node->physp_tbl_size);
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CL_ASSERT(remote_port_num < p_remote_node->physp_tbl_size);
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p_physp = osm_node_get_physp_ptr(p_node, port_num);
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p_remote_physp = osm_node_get_physp_ptr(p_remote_node, remote_port_num);
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return osm_physp_link_exists(p_physp, p_remote_physp);
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}
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boolean_t osm_node_link_has_valid_ports(IN osm_node_t * p_node,
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IN uint8_t port_num,
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IN osm_node_t * p_remote_node,
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IN uint8_t remote_port_num)
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{
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osm_physp_t *p_physp;
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osm_physp_t *p_remote_physp;
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CL_ASSERT(port_num < p_node->physp_tbl_size);
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CL_ASSERT(remote_port_num < p_remote_node->physp_tbl_size);
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p_physp = osm_node_get_physp_ptr(p_node, port_num);
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p_remote_physp = osm_node_get_physp_ptr(p_remote_node, remote_port_num);
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return (p_physp && p_remote_physp);
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}
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boolean_t osm_node_has_any_link(IN osm_node_t * p_node, IN uint8_t port_num)
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{
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osm_physp_t *p_physp;
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CL_ASSERT(port_num < p_node->physp_tbl_size);
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p_physp = osm_node_get_physp_ptr(p_node, port_num);
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return osm_physp_has_any_link(p_physp);
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}
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osm_node_t *osm_node_get_remote_node(IN osm_node_t * p_node,
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IN uint8_t port_num,
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OUT uint8_t * p_remote_port_num)
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{
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osm_physp_t *p_physp;
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osm_physp_t *p_remote_physp;
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p_physp = osm_node_get_physp_ptr(p_node, port_num);
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if (!p_physp || !osm_physp_has_any_link(p_physp))
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return NULL;
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p_remote_physp = osm_physp_get_remote(p_physp);
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if (p_remote_port_num)
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*p_remote_port_num = osm_physp_get_port_num(p_remote_physp);
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return osm_physp_get_node_ptr(p_remote_physp);
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}
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/**********************************************************************
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The lock must be held before calling this function.
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**********************************************************************/
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ib_net16_t osm_node_get_remote_base_lid(IN osm_node_t * p_node,
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IN uint32_t port_num)
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{
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osm_physp_t *p_physp;
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osm_physp_t *p_remote_physp;
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CL_ASSERT(port_num < p_node->physp_tbl_size);
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p_physp = osm_node_get_physp_ptr(p_node, port_num);
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if (p_physp) {
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p_remote_physp = osm_physp_get_remote(p_physp);
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return osm_physp_get_base_lid(p_remote_physp);
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}
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return 0;
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}
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