1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#include <syslog.h>
27#include <errno.h>
28#include <unistd.h>
29#include <stropts.h>
30#include <sys/scsi/impl/uscsi.h>
31
32#include "mp_utils.h"
33
34
35/*
36 *	Called by the common layer to request to steer a path
37 */
38
39MP_STATUS
40Sun_MP_SendScsiCmd(MP_OID pathOid, struct uscsi_cmd *cmd)
41{
42	mp_iocdata_t mp_ioctl;
43
44	int ioctlStatus = 0;
45
46	MP_STATUS mpStatus = MP_STATUS_SUCCESS;
47
48	log(LOG_INFO, "Sun_MP_SendScsiCmd()", " - enter");
49
50	log(LOG_INFO, "Sun_MP_SendScsiCmd()",
51		"pathOid.objectSequenceNumber = %llx",
52		pathOid.objectSequenceNumber);
53
54	if (g_scsi_vhci_fd < 0) {
55		log(LOG_INFO, "Sun_MP_SendScsiCmd()",
56		    "invalid driver file handle");
57		log(LOG_INFO, "Sun_MP_SendScsiCmd()", " - error exit");
58		return (MP_STATUS_FAILED);
59	}
60
61	(void) memset(&mp_ioctl, 0, sizeof (mp_iocdata_t));
62
63	mp_ioctl.mp_cmd  = MP_SEND_SCSI_CMD;
64	mp_ioctl.mp_ibuf = (caddr_t)&pathOid.objectSequenceNumber;
65	mp_ioctl.mp_ilen = sizeof (pathOid.objectSequenceNumber);
66	mp_ioctl.mp_xfer =
67	    ((cmd->uscsi_flags & USCSI_READ) ? MP_XFER_READ : MP_XFER_WRITE);
68	mp_ioctl.mp_obuf = (char *)cmd;
69	mp_ioctl.mp_olen = sizeof (*cmd);
70
71	log(LOG_INFO, "Sun_MP_SendScsiCmd()",
72		"mp_ioctl.mp_cmd (MP_SEND_SCSI_CMD) : %d",
73		mp_ioctl.mp_cmd);
74
75	ioctlStatus = ioctl(g_scsi_vhci_fd, MP_CMD, &mp_ioctl);
76
77	log(LOG_INFO, "Sun_MP_SendScsiCmd()",
78		" IOCTL call returned: %d", ioctlStatus);
79
80	if (ioctlStatus < 0) {
81		ioctlStatus = errno;
82	}
83
84	if (ioctlStatus != 0) {
85		log(LOG_INFO, "Sun_MP_SendScsiCmd()",
86		    "IOCTL call failed.  IOCTL error is: %d",
87			ioctlStatus);
88		log(LOG_INFO, "Sun_MP_SendScsiCmd()",
89		    "IOCTL call failed.  IOCTL error is: %s",
90			strerror(ioctlStatus));
91		log(LOG_INFO, "Sun_MP_SendScsiCmd()",
92		    "IOCTL call failed.  mp_ioctl.mp_errno: %x",
93			mp_ioctl.mp_errno);
94
95		if (ENOTSUP == ioctlStatus) {
96			mpStatus = MP_STATUS_UNSUPPORTED;
97		} else if (EPERM == ioctlStatus) {
98			mpStatus = MP_STATUS_NOT_PERMITTED;
99		} else if (0 == mp_ioctl.mp_errno) {
100			mpStatus = MP_STATUS_FAILED;
101		} else {
102			mpStatus = getStatus4ErrorCode(mp_ioctl.mp_errno);
103		}
104
105		log(LOG_INFO, "Sun_MP_SendScsiCmd()",
106			" - error exit");
107
108		return (mpStatus);
109	}
110
111
112	log(LOG_INFO, "Sun_MP_SendScsiCmd()", " - exit");
113
114	return (MP_STATUS_SUCCESS);
115}
116