/*
 * 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 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */
/*
 * Copyright 2019 Joyent, Inc.
 */
#include <sun_sas.h>

/*
 * Returns the number of HBAs supported by the library.  This returns the
 * current number of HBAs, even if this changes
 *
 */
HBA_UINT32
Sun_sasGetPortType(HBA_HANDLE handle, HBA_UINT32 port, HBA_PORTTYPE *porttype)
{
        const char                  ROUTINE[] = "Sun_sasGetPortType";
        int                         index;
        struct  sun_sas_hba         *hba_ptr;
        struct  sun_sas_port        *hba_port_ptr;

        /* Validate the arguments */
        if (porttype == NULL) {
                log(LOG_DEBUG, ROUTINE, "NULL attributes.");
                return (HBA_STATUS_ERROR_ARG);
        }

        lock(&all_hbas_lock);
        index = RetrieveIndex(handle);
        lock(&open_handles_lock);
        hba_ptr = RetrieveHandle(index);
        if (hba_ptr == NULL) {
                log(LOG_DEBUG, ROUTINE, "Invalid handle %08lx.", handle);
                /* on error, need to set NumberOfEntries to 0 */
                unlock(&open_handles_lock);
                unlock(&all_hbas_lock);
                return (HBA_STATUS_ERROR_INVALID_HANDLE);
        }

        if (hba_ptr->first_port == NULL) {
                /* This is probably an internal failure of the library */
                if (hba_ptr->device_path[0] != '\0') {
                        log(LOG_DEBUG, ROUTINE,
                            "Internal failure:  Adapter %s contains no port "
                            "data.", hba_ptr->device_path);
                } else {
                        log(LOG_DEBUG, ROUTINE,
                            "Internal failure:  Adapter at index %d contains "
                            "no port data", hba_ptr->index);
                }
                unlock(&open_handles_lock);
                unlock(&all_hbas_lock);
                return (HBA_STATUS_ERROR);
        }

        for (hba_port_ptr = hba_ptr->first_port;
            hba_port_ptr != NULL; hba_port_ptr = hba_port_ptr->next) {
                if (hba_port_ptr->index == port) {
                        break;
                }
        }

        if (hba_port_ptr == NULL || hba_port_ptr->index != port) {
                log(LOG_DEBUG, ROUTINE,
                    "Invalid port index %d for handle %08lx.",
                    port, handle);
                unlock(&open_handles_lock);
                unlock(&all_hbas_lock);
                return (HBA_STATUS_ERROR_ILLEGAL_INDEX);
        }

        *porttype = HBA_PORTTYPE_SASDEVICE;

        unlock(&open_handles_lock);
        unlock(&all_hbas_lock);

        return (HBA_STATUS_OK);
}