MP_EnableAutoFailbackPlugin.c revision 7836:4e95154b5b7a 
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
31#include "mp_utils.h"
32
33
34MP_STATUS
35MP_EnableAutoFailbackPlugin(void)
36{
37	mp_iocdata_t mp_ioctl;
38
39	int ioctlStatus = 0;
40
41	MP_STATUS mpStatus = MP_STATUS_SUCCESS;
42
43	char chBuffer[256];
44
45
46	log(LOG_INFO, "MP_EnableAutoFailbackPlugin()", " - enter");
47
48
49	if (g_scsi_vhci_fd < 0) {
50		log(LOG_INFO, "MP_EnableAutoFailbackPlugin()",
51		    "invalid driver file handle");
52		log(LOG_INFO, "MP_EnableAutoFailbackPlugin()", " - error exit");
53		return (MP_STATUS_FAILED);
54	}
55
56	(void) memset(&mp_ioctl, 0, sizeof (mp_iocdata_t));
57	(void) memset(&chBuffer, 0, 256);
58
59	mp_ioctl.mp_cmd = MP_ENABLE_AUTO_FAILBACK;
60	mp_ioctl.mp_ibuf = (caddr_t)&chBuffer[0];
61	mp_ioctl.mp_xfer =  MP_XFER_WRITE;
62
63	log(LOG_INFO, "MP_EnableAutoFailbackPlugin()",
64		"mp_ioctl.mp_cmd (MP_ENABLE_AUTO_FAILBACK) : %d",
65		mp_ioctl.mp_cmd);
66
67	ioctlStatus = ioctl(g_scsi_vhci_fd, MP_CMD, &mp_ioctl);
68
69	log(LOG_INFO, "MP_EnableAutoFailbackPlugin()",
70		" IOCTL call returned: %d", ioctlStatus);
71
72	if (ioctlStatus < 0) {
73		ioctlStatus = errno;
74	}
75
76	if (ioctlStatus != 0) {
77		log(LOG_INFO, "MP_EnableAutoFailbackPlugin()",
78		    "IOCTL call failed.  IOCTL error is: %d",
79			ioctlStatus);
80		log(LOG_INFO, "MP_EnableAutoFailbackPlugin()",
81		    "IOCTL call failed.  IOCTL error is: %s",
82			strerror(ioctlStatus));
83		log(LOG_INFO, "MP_EnableAutoFailbackPlugin()",
84		    "IOCTL call failed.  mp_ioctl.mp_errno: %x",
85			mp_ioctl.mp_errno);
86
87		if (ENOTSUP == ioctlStatus) {
88			mpStatus = MP_STATUS_UNSUPPORTED;
89		} else if (0 == mp_ioctl.mp_errno) {
90			mpStatus = MP_STATUS_FAILED;
91		} else {
92			mpStatus = getStatus4ErrorCode(mp_ioctl.mp_errno);
93		}
94
95		log(LOG_INFO, "MP_EnableAutoFailbackPlugin()",
96			" - error exit");
97
98		return (mpStatus);
99	}
100
101
102	log(LOG_INFO, "MP_EnableAutoFailbackPlugin()", " - exit");
103
104	return (MP_STATUS_SUCCESS);
105}
106