/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include <syslog.h>
#include <errno.h>
#include <unistd.h>
#include <stropts.h>

#include "mp_utils.h"

#include <libdevinfo.h>


static int getOidList(di_node_t root_node, MP_OID_LIST *pOidList)
{
        int numNodes = 0;
        int instNum = 0;
        int majorNum = 0;

        di_node_t vh_node       = DI_NODE_NIL;
        di_node_t ph_node       = DI_NODE_NIL;

        MP_UINT64 osn = 0;

        int haveList = (NULL != pOidList);


        log(LOG_INFO, "getOidList()", " - enter");

        vh_node = di_vhci_first_node(root_node);

        while (DI_NODE_NIL != vh_node) {
                if ((di_driver_name(vh_node) != NULL) &&
                    (strncmp(di_driver_name(vh_node), "scsi_vhci", 9) == 0)) {
                        ph_node = di_phci_first_node(vh_node);
                        while (DI_NODE_NIL != ph_node) {
                                if (haveList) {

                                        instNum  = di_instance(ph_node);
                                        majorNum = di_driver_major(ph_node);

                                        log(LOG_INFO, "getOidList()",
                                                "instNum = %d",
                                                instNum);

                                        log(LOG_INFO, "getOidList()",
                                                "majorNum = %d",
                                                majorNum);

                                        if (numNodes < pOidList->oidCount) {

                                                osn = 0;

                                                osn =
                                                MP_STORE_INST_TO_ID(instNum,
                                                                osn);

                                                osn =
                                                MP_STORE_MAJOR_TO_ID(majorNum,
                                                                osn);

                                                pOidList->oids[numNodes]
                                                        .objectSequenceNumber =
                                                        osn;

                                                pOidList->oids[numNodes].
                                                        objectType =
                                                MP_OBJECT_TYPE_INITIATOR_PORT;

                                                pOidList->oids[numNodes].
                                                        ownerId =
                                                        g_pluginOwnerID;
                                        }
                                }

                                ++numNodes;
                                ph_node = di_phci_next_node(ph_node);
                        }

                }
                vh_node = di_vhci_next_node(vh_node);
        }

        log(LOG_INFO,
                "getOidList()",
                " - numNodes: %d",
                numNodes);


        log(LOG_INFO, "getOidList()", " - exit");

        return (numNodes);
}



MP_STATUS
MP_GetInitiatorPortOidListPlugin(MP_OID_LIST **ppList)
{
        di_node_t root_node     = DI_NODE_NIL;

        int i = 0;
        int numNodes = 0;



        log(LOG_INFO, "MP_GetInitiatorPortOidListPlugin()", " - enter");


        root_node = di_init("/", DINFOCACHE);
        if (DI_NODE_NIL == root_node) {
                log(LOG_INFO, "MP_GetInitiatorPortOidListPlugin()",
                        " - di_init() failed");

                return (MP_STATUS_FAILED);
        }

        numNodes = getOidList(root_node, NULL);

        if (numNodes < 1) {

                *ppList = createOidList(1);

                if (NULL == *ppList) {
                        log(LOG_INFO, "MP_GetInitiatorPortOidListPlugin()",
                                "no memory for *ppList");
                        log(LOG_INFO, "MP_GetInitiatorPortOidListPlugin()",
                                " - error exit");
                        return (MP_STATUS_INSUFFICIENT_MEMORY);
                }

                log(LOG_INFO, "MP_GetInitiatorPortOidListPlugin()",
                        " - returning empty list.");

                return (MP_STATUS_SUCCESS);
        }

        *ppList = createOidList(numNodes);
        if (NULL == *ppList) {
                log(LOG_INFO, "MP_GetInitiatorPortOidListPlugin()",
                        "no memory for *ppList");
                log(LOG_INFO, "MP_GetInitiatorPortOidListPlugin()",
                        " - error exit");
                return (MP_STATUS_INSUFFICIENT_MEMORY);
        }

        (*ppList)->oidCount = numNodes;

        numNodes = getOidList(root_node, *ppList);

        for (i = 0; i < (*ppList)->oidCount; i++) {

                log(LOG_INFO, "MP_GetInitiatorPortOidListPlugin()",
                        "(*ppList)->oids[%d].objectType           = %d",
                        i, (*ppList)->oids[i].objectType);
                log(LOG_INFO, "MP_GetInitiatorPortOidListPlugin()",
                        "(*ppList)->oids[%d].ownerId              = %d",
                        i, (*ppList)->oids[i].ownerId);
                log(LOG_INFO, "MP_GetInitiatorPortOidListPlugin()",
                        "(*ppList)->oids[%d].objectSequenceNumber = %llx",
                        i, (*ppList)->oids[i].objectSequenceNumber);
        }


        di_fini(root_node);


        log(LOG_INFO, "MP_GetInitiatorPortOidListPlugin()", " - exit");

        return (MP_STATUS_SUCCESS);
}