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 /*
23 * Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved.
24 */
25
26 /*
27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
28 * Use is subject to license terms.
29 */
30
31 /*
32 *
33 * MODULE: dapl_evd_create.c
34 *
35 * PURPOSE: EVENT management
36 *
37 * Description: Interfaces in this file are completely defined in
38 * the uDAPL 1.1 API, Chapter 6, section 3
39 *
40 * $Id: dapl_evd_create.c,v 1.12 2003/08/06 14:04:27 sjs2 Exp $
41 */
42
43 #include "dapl.h"
44 #include "dapl_evd_util.h"
45
46 /*
47 * dapl_evd_create
48 *
49 * DAPL Requirements Version xxx, 6.3.2.1
50 *
51 * Create and instance of Event Dispatcher.
52 *
53 * Input:
54 * ia_handle
55 * cno_handle
56 * evd_min_qlen
57 * evd_flags
58 *
59 * Output:
60 * evd_handle
61 *
62 * Returns:
63 * DAT_SUCCESS
64 * DAT_INSUFFICIENT_RESOURCES
65 * DAT_INVALID_PARAMETER
66 */
67
68 /*
69 * ** REVISIT **
70 *
71 * Selecting the cqe handing domain must still be done.
72 * We *probably* want one per hca, but we could have one
73 * per provider or one per consumer.
74 */
75 /*
76 * Note that if there already is a cq, it is not deleted
77 * even if it is not required. However, it will not be armed.
78 */
79
dapl_evd_create(IN DAT_IA_HANDLE ia_handle,IN DAT_COUNT evd_min_qlen,IN DAT_CNO_HANDLE cno_handle,IN DAT_EVD_FLAGS evd_flags,OUT DAT_EVD_HANDLE * evd_handle)80 DAT_RETURN dapl_evd_create(
81 IN DAT_IA_HANDLE ia_handle,
82 IN DAT_COUNT evd_min_qlen,
83 IN DAT_CNO_HANDLE cno_handle,
84 IN DAT_EVD_FLAGS evd_flags,
85 OUT DAT_EVD_HANDLE *evd_handle)
86 {
87 DAPL_IA *ia_ptr;
88 DAPL_EVD *evd_ptr;
89 DAPL_CNO *cno_ptr;
90 DAT_RETURN dat_status;
91 DAT_PROVIDER_ATTR provider_attr = {0};
92 int i;
93 int j;
94 DAT_EVD_FLAGS mask[6] = {DAT_EVD_SOFTWARE_FLAG,
95 DAT_EVD_CR_FLAG, DAT_EVD_DTO_FLAG, DAT_EVD_CONNECTION_FLAG,
96 DAT_EVD_RMR_BIND_FLAG, DAT_EVD_ASYNC_FLAG};
97
98 dapl_dbg_log(DAPL_DBG_TYPE_API,
99 "dapl_evd_create (%p, %d, %p, 0x%x, %p)\n",
100 ia_handle,
101 evd_min_qlen,
102 cno_handle,
103 evd_flags,
104 evd_handle);
105
106 ia_ptr = (DAPL_IA *)ia_handle;
107 cno_ptr = (DAPL_CNO *)cno_handle;
108 evd_ptr = NULL;
109 *evd_handle = NULL;
110 dat_status = DAT_SUCCESS;
111
112 if (DAPL_BAD_HANDLE(ia_handle, DAPL_MAGIC_IA)) {
113 dat_status = DAT_ERROR(DAT_INVALID_HANDLE,
114 DAT_INVALID_HANDLE_IA);
115 goto bail;
116 }
117
118 if (evd_min_qlen <= 0) {
119 dat_status = DAT_ERROR(DAT_INVALID_PARAMETER, DAT_INVALID_ARG2);
120 goto bail;
121 }
122 if (evd_min_qlen > ia_ptr->hca_ptr->ia_attr.max_evd_qlen) {
123 dat_status = DAT_ERROR(DAT_INSUFFICIENT_RESOURCES,
124 DAT_RESOURCE_TEVD);
125 goto bail;
126 }
127
128 if ((cno_handle != DAT_HANDLE_NULL) &&
129 DAPL_BAD_HANDLE(cno_handle, DAPL_MAGIC_CNO)) {
130 dat_status = DAT_ERROR(DAT_INVALID_HANDLE,
131 DAT_INVALID_HANDLE_CNO);
132 goto bail;
133 }
134
135 /*
136 * Check the merging attributes to ensure the combination of
137 * flags requested is supported.
138 */
139 (void) dapl_ia_query(ia_handle, NULL,
140 0, NULL,
141 DAT_PROVIDER_FIELD_ALL, &provider_attr);
142
143
144 for (i = 0; i < 6; i++) {
145 if (mask[i] & evd_flags) {
146 for (j = i; j < 6; j++) {
147 if (mask[j] & evd_flags) {
148 if (provider_attr.
149 evd_stream_merging_supported[i][j]
150 == DAT_FALSE) {
151 dat_status = DAT_ERROR(
152 DAT_INVALID_PARAMETER,
153 DAT_INVALID_ARG4);
154 goto bail;
155 }
156 }
157 } /* end for j */
158 }
159 } /* end for i */
160
161 dat_status = dapls_evd_internal_create(ia_ptr,
162 cno_ptr,
163 evd_min_qlen,
164 evd_flags,
165 &evd_ptr);
166 if (dat_status != DAT_SUCCESS) {
167 goto bail;
168 }
169
170 evd_ptr->evd_state = DAPL_EVD_STATE_OPEN;
171
172 *evd_handle = (DAT_EVD_HANDLE) evd_ptr;
173
174 bail:
175 if (dat_status != DAT_SUCCESS) {
176 if (evd_ptr) {
177 (void) dapl_evd_free(evd_ptr);
178 }
179 }
180
181 dapl_dbg_log(DAPL_DBG_TYPE_RTN,
182 "dapl_evd_create () returns 0x%x\n",
183 dat_status);
184
185 return (dat_status);
186 }
187