/*
 * 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.
 */

#include    <sun_sas.h>

/*
 * Retrieves the statistics for a specified port on an adapter
 */
HBA_STATUS Sun_sasGetSASPhyAttributes(HBA_HANDLE handle,
    HBA_UINT32 port, HBA_UINT32 phy, SMHBA_SAS_PHY *pAttributes)
{
        const char      ROUTINE[] = "Sun_sasGetSASPhyAttributes";
        HBA_STATUS              status = HBA_STATUS_OK;
        struct sun_sas_hba      *hba_ptr;
        struct sun_sas_port     *hba_port_ptr;
        struct phy_info         *phy_ptr;

        /* Validate the arguments */
        if (pAttributes == NULL) {
                log(LOG_DEBUG, ROUTINE, "NULL response buffer");
                return (HBA_STATUS_ERROR_ARG);
        }
        lock(&all_hbas_lock);

        if ((hba_ptr = Retrieve_Sun_sasHandle(handle)) == NULL) {
                log(LOG_DEBUG, ROUTINE, "Invalid handle %08lx", handle);
                unlock(&all_hbas_lock);
                return (HBA_STATUS_ERROR_INVALID_HANDLE);
        }

        /* Check for stale data */
        status = verifyAdapter(hba_ptr);
        if (status != HBA_STATUS_OK) {
                log(LOG_DEBUG, ROUTINE, "Verify adapter failed");
                unlock(&all_hbas_lock);
                return (status);
        }

        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) {
                log(LOG_DEBUG, ROUTINE, "Invalid port index");
                unlock(&all_hbas_lock);
                return (HBA_STATUS_ERROR_ILLEGAL_INDEX);
        }

        /* match phy index. */
        if (phy >= hba_port_ptr->port_attributes.PortSpecificAttribute.
            SASPort->NumberofPhys) {
                log(LOG_DEBUG, ROUTINE, "Invalid phy index %d", phy);
                unlock(&all_hbas_lock);
                return (HBA_STATUS_ERROR_ILLEGAL_INDEX);
        } else {
                for (phy_ptr = hba_port_ptr->first_phy; phy_ptr != NULL;
                    phy_ptr = phy_ptr->next) {
                        if (phy == phy_ptr->index) {
                                (void) memset(pAttributes, 0,
                                    sizeof (SMHBA_SAS_PHY));
                                (void) memcpy(pAttributes, &phy_ptr->phy,
                                    sizeof (SMHBA_SAS_PHY));
                                unlock(&all_hbas_lock);
                                return (HBA_STATUS_OK);
                        }
                }
        }

        unlock(&all_hbas_lock);
        log(LOG_DEBUG, ROUTINE, "Illegal phy index %d", phy);
        return (HBA_STATUS_ERROR_ILLEGAL_INDEX);
}