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 (c) 2010, Oracle and/or its affiliates. All rights reserved. 23 */ 24 25 #include <sys/types.h> 26 #include <sys/kmem.h> 27 #include <sys/ksynch.h> 28 #include <sys/ib/ibtl/ibti_common.h> 29 30 kmutex_t ibtl_part_attr_mutex; 31 ibt_status_t (*ibtl_get_part_attr_cb)(datalink_id_t, ibt_part_attr_t *); 32 ibt_status_t (*ibtl_get_all_part_attr_cb)(ibt_part_attr_t **, int *); 33 34 void 35 ibt_register_part_attr_cb( 36 ibt_status_t (*get_part_attr)(datalink_id_t, ibt_part_attr_t *), 37 ibt_status_t (*get_all_part_attr)(ibt_part_attr_t **, int *)) 38 { 39 mutex_enter(&ibtl_part_attr_mutex); 40 ibtl_get_part_attr_cb = get_part_attr; 41 ibtl_get_all_part_attr_cb = get_all_part_attr; 42 mutex_exit(&ibtl_part_attr_mutex); 43 } 44 45 void 46 ibt_unregister_part_attr_cb(void) 47 { 48 mutex_enter(&ibtl_part_attr_mutex); 49 ibtl_get_part_attr_cb = NULL; 50 ibtl_get_all_part_attr_cb = NULL; 51 mutex_exit(&ibtl_part_attr_mutex); 52 } 53 54 ibt_status_t 55 ibt_get_part_attr(datalink_id_t linkid, ibt_part_attr_t *attr) 56 { 57 ibt_status_t status; 58 59 mutex_enter(&ibtl_part_attr_mutex); 60 if (ibtl_get_part_attr_cb != NULL) 61 status = (*ibtl_get_part_attr_cb) (linkid, attr); 62 else 63 status = IBT_NO_SUCH_OBJECT; 64 mutex_exit(&ibtl_part_attr_mutex); 65 66 return (status); 67 } 68 69 ibt_status_t 70 ibt_get_all_part_attr(ibt_part_attr_t **attr, int *nparts) 71 { 72 ibt_status_t status; 73 74 mutex_enter(&ibtl_part_attr_mutex); 75 if (ibtl_get_all_part_attr_cb != NULL) 76 status = (*ibtl_get_all_part_attr_cb) (attr, nparts); 77 else { 78 *attr = NULL; 79 *nparts = 0; 80 status = IBT_SUCCESS; 81 } 82 mutex_exit(&ibtl_part_attr_mutex); 83 84 return (status); 85 } 86 87 ibt_status_t 88 ibt_free_part_attr(ibt_part_attr_t *attr, int nparts) 89 { 90 if (nparts > 0) 91 kmem_free(attr, sizeof (ibt_part_attr_t) * nparts); 92 return (IBT_SUCCESS); 93 } 94