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/*
27 * Description
28 * mpapi-sun.c - Implements the Sun Extension to the Multipath Management
29 * API Version 1.0
30 */
31
32#include <dlfcn.h>
33#include <pthread.h>
34#include "mpapi.h"
35#include "mpapi-sun.h"
36#include "mpapi-plugin.h"
37
38extern MPPLUGININFO_T plugintable[MP_MAX_NUM_PLUGINS];
39
40extern pthread_mutex_t mp_lib_mutex;
41extern MP_STATUS validate_object(MP_OID obj, MP_OBJECT_TYPE objType,
42		MP_UINT32 flag);
43
44MP_STATUS Sun_MP_SendScsiCmd(
45	MP_OID pathOid, struct uscsi_cmd *cmd)
46{
47	Sun_MP_SendScsiCmdFn PassFunc;
48	MP_UINT32 index;
49	MP_STATUS status;
50
51	if ((status = validate_object(pathOid, MP_OBJECT_TYPE_PATH_LU,
52	    MP_OBJECT_TYPE_MATCH)) != MP_STATUS_SUCCESS) {
53	    return (status);
54	}
55
56	(void) pthread_mutex_lock(&mp_lib_mutex);
57
58	index = pathOid.ownerId - 1;
59	if (plugintable[index].hdlPlugin != NULL) {
60	    PassFunc = (Sun_MP_SendScsiCmdFn)
61	    dlsym(plugintable[index].hdlPlugin,
62	    "Sun_MP_SendScsiCmd");
63
64	    if (PassFunc != NULL) {
65		status = PassFunc(pathOid, cmd);
66	    } else {
67		status = MP_STATUS_UNSUPPORTED;
68	    }
69	} else {
70	    status = MP_STATUS_FAILED;
71	}
72
73	(void) pthread_mutex_unlock(&mp_lib_mutex);
74	return (status);
75}
76