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_init.c
34 *
35 * PURPOSE: Interface Adapter management
36 * Description: Interfaces in this file are completely described in
37 *		the DAPL 1.1 API, Chapter 6, section 2
38 *
39 * $Id: dapl_init.c,v 1.42 2003/06/30 15:38:20 sjs2 Exp $
40 */
41
42#include "dapl.h"
43#include "dapl_hca_util.h"
44#include "dapl_init.h"
45#include "dapl_provider.h"
46#include "dapl_mr_util.h"
47#include "dapl_osd.h"			/* needed for g_daplDebugLevel */
48#include "dapl_adapter_util.h"
49#include "dapl_name_service.h"
50#include "dapl_vendor.h"
51
52static void dapl_init(void);
53static void dapl_fini(void);
54
55#pragma init(dapl_init)
56#pragma fini(dapl_fini)
57
58/*
59 * dapl_init
60 *
61 * initialize this provider
62 * includes initialization of all global variables
63 * as well as registering all supported IAs with the dat registry
64 *
65 * This function needs to be called once when the provider is loaded.
66 *
67 * Input:
68 *	none
69 *
70 * Output:
71 *	none
72 *
73 * Return Values:
74 */
75static void
76dapl_init(void)
77{
78	DAT_RETURN		dat_status;
79
80	dapl_dbg_log(DAPL_DBG_TYPE_UTIL, "DAPL: Started (dapl_init)\n");
81
82#if defined(DAPL_DBG)
83	/* set up debug type */
84	g_dapl_dbg_type = dapl_os_get_env_val("DAPL_DBG_TYPE",
85	    DAPL_DBG_TYPE_ERR | DAPL_DBG_TYPE_WARN);
86	/* set up debug level */
87	g_dapl_dbg_dest = dapl_os_get_env_val("DAPL_DBG_DEST",
88	    DAPL_DBG_DEST_STDOUT);
89#endif /* DAPL_DBG */
90
91	/* See if the user is on a loopback setup */
92	g_dapl_loopback_connection = dapl_os_get_env_bool("DAPL_LOOPBACK");
93	dapl_dbg_log(DAPL_DBG_TYPE_UTIL, "DAPL: %s Setting Loopback\n",
94	    g_dapl_loopback_connection ? "" : "NOT");
95
96	dapls_ib_state_init();
97
98	/* initialize the provider list */
99	dat_status = dapl_provider_list_create();
100	if (DAT_SUCCESS != dat_status) {
101		dapl_dbg_log(DAPL_DBG_TYPE_ERR,
102		    "dapl_provider_list_create failed %d\n", dat_status);
103		goto bail;
104	}
105
106	/* Set up name services */
107	dat_status = dapls_ns_init();
108
109	if (DAT_SUCCESS != dat_status) {
110		dapl_dbg_log(DAPL_DBG_TYPE_ERR, "dapls_ns_init failed %d\n",
111		    dat_status);
112		goto bail;
113	}
114
115	return;
116
117bail:
118	dapl_dbg_log(DAPL_DBG_TYPE_ERR, "ERROR: dapl_init failed\n");
119	dapl_fini();
120}
121
122/*
123 * dapl_fini
124 *
125 * finalize this provider
126 * includes freeing of all global variables
127 * as well as deregistering all supported IAs from the dat registry
128 *
129 * This function needs to be called once when the provider is loaded.
130 *
131 * Input:
132 *	none
133 *
134 * Output:
135 *	none
136 *
137 * Return Values:
138 */
139static void
140dapl_fini(void)
141{
142	DAT_RETURN		dat_status;
143
144	dapl_dbg_log(DAPL_DBG_TYPE_UTIL, "DAPL: Stopped (dapl_fini)\n");
145
146	/*
147	 * Free up hca related resources
148	 */
149	dapls_ib_state_fini();
150
151	dat_status = dapl_provider_list_destroy();
152	if (DAT_SUCCESS != dat_status) {
153		dapl_dbg_log(DAPL_DBG_TYPE_ERR,
154		    "dapl_provider_list_destroy failed %d\n", dat_status);
155	}
156}
157
158/*
159 *
160 * This function is called by the registry to initialize a provider
161 *
162 * The instance data string is expected to have the following form:
163 *
164 * <hca name> <port number>
165 *
166 */
167/* ARGSUSED */
168void
169dat_provider_init(
170    IN const DAT_PROVIDER_INFO 	*provider_info,
171    IN const char 		*instance_data)
172{
173	DAT_PROVIDER		*provider;
174	DAPL_HCA		*hca_ptr;
175	DAT_RETURN		dat_status;
176
177	provider = NULL;
178	hca_ptr = NULL;
179
180	dat_status = dapl_provider_list_insert(provider_info->ia_name,
181	    &provider);
182	if (DAT_SUCCESS != dat_status) {
183		dapl_dbg_log(DAPL_DBG_TYPE_ERR,
184		    "dat_provider_list_insert failed: %x\n", dat_status);
185		goto bail;
186	}
187
188	hca_ptr = dapl_hca_alloc((char *)provider_info->ia_name, 0);
189	if (NULL == hca_ptr) {
190		dat_status = DAT_ERROR(DAT_INSUFFICIENT_RESOURCES,
191		    DAT_RESOURCE_MEMORY);
192		goto bail;
193	}
194
195	provider->extension = hca_ptr;
196
197	/* register providers with dat_registry */
198	dat_status = dat_registry_add_provider(provider, provider_info);
199	if (DAT_SUCCESS != dat_status) {
200		dapl_dbg_log(DAPL_DBG_TYPE_ERR,
201		    "dat_registry_add_provider failed: %x\n", dat_status);
202		goto bail;
203	}
204
205bail:
206	if (DAT_SUCCESS != dat_status) {
207		if (NULL != provider) {
208			(void) dapl_provider_list_remove(
209			    provider_info->ia_name);
210		}
211
212		if (NULL != hca_ptr) {
213			dapl_hca_free(hca_ptr);
214		}
215	}
216}
217
218
219/*
220 *
221 * This function is called by the registry to de-initialize a provider
222 *
223 */
224void
225dat_provider_fini(
226    IN const DAT_PROVIDER_INFO 	*provider_info)
227{
228	DAT_PROVIDER	*provider;
229	DAT_RETURN	dat_status;
230
231	dat_status = dapl_provider_list_search(provider_info->ia_name,
232	    &provider);
233	if (DAT_SUCCESS != dat_status) {
234		dapl_dbg_log(DAPL_DBG_TYPE_ERR,
235		    "dat_registry_add_provider failed: %x\n", dat_status);
236		return;
237	}
238
239	dat_status = dat_registry_remove_provider(provider, provider_info);
240	if (DAT_SUCCESS != dat_status) {
241		dapl_dbg_log(DAPL_DBG_TYPE_ERR,
242		    "dat_registry_add_provider failed: %x\n", dat_status);
243	}
244
245	(void) dapl_provider_list_remove(provider_info->ia_name);
246}
247
248
249
250/*
251 * Local variables:
252 *  c-indent-level: 4
253 *  c-basic-offset: 4
254 *  tab-width: 8
255 * End:
256 */
257