libmpscsi_vhci/common/Sun_MP_SendScsiCmd.c

fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * CDDL HEADER START
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * The contents of this file are subject to the terms of the
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Common Development and Distribution License (the "License").
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * You may not use this file except in compliance with the License.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * or http://www.opensolaris.org/os/licensing.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * See the License for the specific language governing permissions
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fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte * Use is subject to license terms.
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include <syslog.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include <errno.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include <unistd.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include <stropts.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include <sys/scsi/impl/uscsi.h>
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte#include "mp_utils.h"
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte/*
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte *  Called by the common layer to request to steer a path
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte */
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn ForteMP_STATUS
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn ForteSun_MP_SendScsiCmd(MP_OID pathOid, struct uscsi_cmd *cmd)
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte{
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    mp_iocdata_t mp_ioctl;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    int ioctlStatus = 0;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    MP_STATUS mpStatus = MP_STATUS_SUCCESS;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    log(LOG_INFO, "Sun_MP_SendScsiCmd()", " - enter");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    log(LOG_INFO, "Sun_MP_SendScsiCmd()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        "pathOid.objectSequenceNumber = %llx",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        pathOid.objectSequenceNumber);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if (g_scsi_vhci_fd < 0) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        log(LOG_INFO, "Sun_MP_SendScsiCmd()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            "invalid driver file handle");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        log(LOG_INFO, "Sun_MP_SendScsiCmd()", " - error exit");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        return (MP_STATUS_FAILED);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    (void) memset(&mp_ioctl, 0, sizeof (mp_iocdata_t));
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    mp_ioctl.mp_cmd  = MP_SEND_SCSI_CMD;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    mp_ioctl.mp_ibuf = (caddr_t)&pathOid.objectSequenceNumber;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    mp_ioctl.mp_ilen = sizeof (pathOid.objectSequenceNumber);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    mp_ioctl.mp_xfer =
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        ((cmd->uscsi_flags & USCSI_READ) ? MP_XFER_READ : MP_XFER_WRITE);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    mp_ioctl.mp_obuf = (char *)cmd;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    mp_ioctl.mp_olen = sizeof (*cmd);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    log(LOG_INFO, "Sun_MP_SendScsiCmd()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        "mp_ioctl.mp_cmd (MP_SEND_SCSI_CMD) : %d",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        mp_ioctl.mp_cmd);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    ioctlStatus = ioctl(g_scsi_vhci_fd, MP_CMD, &mp_ioctl);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    log(LOG_INFO, "Sun_MP_SendScsiCmd()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        " IOCTL call returned: %d", ioctlStatus);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if (ioctlStatus < 0) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        ioctlStatus = errno;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    if (ioctlStatus != 0) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        log(LOG_INFO, "Sun_MP_SendScsiCmd()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            "IOCTL call failed.  IOCTL error is: %d",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            ioctlStatus);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        log(LOG_INFO, "Sun_MP_SendScsiCmd()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            "IOCTL call failed.  IOCTL error is: %s",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            strerror(ioctlStatus));
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        log(LOG_INFO, "Sun_MP_SendScsiCmd()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            "IOCTL call failed.  mp_ioctl.mp_errno: %x",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            mp_ioctl.mp_errno);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        if (ENOTSUP == ioctlStatus) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            mpStatus = MP_STATUS_UNSUPPORTED;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        } else if (EPERM == ioctlStatus) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            mpStatus = MP_STATUS_NOT_PERMITTED;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        } else if (0 == mp_ioctl.mp_errno) {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            mpStatus = MP_STATUS_FAILED;
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        } else {
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            mpStatus = getStatus4ErrorCode(mp_ioctl.mp_errno);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        log(LOG_INFO, "Sun_MP_SendScsiCmd()",
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte            " - error exit");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte        return (mpStatus);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    }
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    log(LOG_INFO, "Sun_MP_SendScsiCmd()", " - exit");
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte    return (MP_STATUS_SUCCESS);
fcf3ce441efd61da9bb2884968af01cb7c1452ccJohn Forte}