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 38 extern MPPLUGININFO_T plugintable[MP_MAX_NUM_PLUGINS]; 39 40 extern pthread_mutex_t mp_lib_mutex; 41 extern MP_STATUS validate_object(MP_OID obj, MP_OBJECT_TYPE objType, 42 MP_UINT32 flag); 43 44 MP_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