xref: /illumos-gate/usr/src/lib/mpapi/libmpscsi_vhci/common/MP_DisableAutoFailbackPlugin.c (revision 45ede40b2394db7967e59f19288fae9b62efd4aa)
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 
34 /*
35  *	Called by the common layer to request the plugin to request
36  *	to disable autofailback.
37  */
38 
39 MP_STATUS
40 MP_DisableAutoFailbackPlugin(void)
41 {
42 	mp_iocdata_t mp_ioctl;
43 
44 	int ioctlStatus = 0;
45 
46 	MP_STATUS mpStatus = MP_STATUS_SUCCESS;
47 
48 	char chBuffer[256];
49 
50 
51 
52 	log(LOG_INFO, "MP_DisableAutoFailbackPlugin()", " - enter");
53 
54 
55 	if (g_scsi_vhci_fd < 0) {
56 		log(LOG_INFO, "MP_DisableAutoFailbackPlugin()",
57 		    "invalid driver file handle");
58 		log(LOG_INFO, "MP_DisableAutoFailbackPlugin()",
59 			" - error exit");
60 		return (MP_STATUS_FAILED);
61 	}
62 
63 	(void) memset(&mp_ioctl, 0, sizeof (mp_iocdata_t));
64 	(void) memset(&chBuffer, 0, 256);
65 
66 	mp_ioctl.mp_cmd = MP_DISABLE_AUTO_FAILBACK;
67 	mp_ioctl.mp_ibuf = (caddr_t)&chBuffer[0];
68 	mp_ioctl.mp_xfer =  MP_XFER_WRITE;
69 
70 
71 	log(LOG_INFO, "MP_DisableAutoFailbackPlugin()",
72 		"mp_ioctl.mp_cmd (MP_DISABLE_AUTO_FAILBACK) : %d",
73 		mp_ioctl.mp_cmd);
74 
75 	ioctlStatus = ioctl(g_scsi_vhci_fd, MP_CMD, &mp_ioctl);
76 
77 	log(LOG_INFO, "MP_DisableAutoFailbackPlugin()",
78 		" IOCTL call returned: %d", ioctlStatus);
79 
80 	if (ioctlStatus < 0) {
81 		ioctlStatus = errno;
82 	}
83 
84 	if (ioctlStatus != 0) {
85 		log(LOG_INFO, "MP_DisableAutoFailbackPlugin()",
86 		    "IOCTL call failed.  IOCTL error is: %d",
87 			ioctlStatus);
88 		log(LOG_INFO, "MP_DisableAutoFailbackPlugin()",
89 		    "IOCTL call failed.  IOCTL error is: %s",
90 			strerror(ioctlStatus));
91 		log(LOG_INFO, "MP_DisableAutoFailbackPlugin()",
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 (0 == mp_ioctl.mp_errno) {
98 			mpStatus = MP_STATUS_FAILED;
99 		} else {
100 			mpStatus = getStatus4ErrorCode(mp_ioctl.mp_errno);
101 		}
102 
103 		log(LOG_INFO, "MP_DisableAutoFailbackPlugin()",
104 			" - error exit");
105 
106 		return (mpStatus);
107 	}
108 
109 
110 	log(LOG_INFO, "MP_DisableAutoFailbackPlugin()", " - exit");
111 
112 	return (MP_STATUS_SUCCESS);
113 }
114