xref: /illumos-gate/usr/src/uts/common/io/net_dacf.c (revision 2a6e99a0f1f7d22c0396e8b2ce9b9babbd1056cf)
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 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*
28  * This module provides the dacf functions to be called after a device
29  * of "ddi_network" node type has attached and before it detaches.
30  * Specifically, net_postattach() will be called during the post-attach
31  * process of each "ddi_network" device, and net_predetach() will be
32  * called during the pre-detach process of each device.
33  */
34 #include <sys/modctl.h>
35 #include <sys/sunddi.h>
36 #include <sys/ddi.h>
37 #include <sys/dacf.h>
38 #include <sys/softmac.h>
39 
40 /*
41  * DACF entry points
42  */
43 static int	net_postattach(dacf_infohdl_t, dacf_arghdl_t, int);
44 static int	net_predetach(dacf_infohdl_t, dacf_arghdl_t, int);
45 
46 static dacf_op_t net_config_op[] = {
47 	{ DACF_OPID_POSTATTACH,	net_postattach	},
48 	{ DACF_OPID_PREDETACH,	net_predetach	},
49 	{ DACF_OPID_END,	NULL		},
50 };
51 
52 static dacf_opset_t opsets[] = {
53 	{ "net_config", net_config_op 		},
54 	{ NULL,		NULL 			}
55 };
56 
57 static struct dacfsw dacfsw = {
58 	DACF_MODREV_1,
59 	opsets
60 };
61 
62 static struct modldacf modldacf = {
63 	&mod_dacfops,
64 	"net DACF",
65 	&dacfsw
66 };
67 
68 static struct modlinkage modlinkage = {
69 	MODREV_1, &modldacf, NULL
70 };
71 
72 int
73 _init(void)
74 {
75 	return (mod_install(&modlinkage));
76 }
77 
78 int
79 _fini(void)
80 {
81 	return (mod_remove(&modlinkage));
82 }
83 
84 int
85 _info(struct modinfo *modinfop)
86 {
87 	return (mod_info(&modlinkage, modinfop));
88 }
89 
90 /*
91  * Post-attach routine invoked for DDI_NT_NET drivers by DACF framework
92  */
93 /* ARGSUSED */
94 static int
95 net_postattach(dacf_infohdl_t info_hdl, dacf_arghdl_t arg_hdl, int flags)
96 {
97 	dev_info_t	*dip;
98 	dev_t		dev;
99 	int		err;
100 
101 	dip = dacf_devinfo_node(info_hdl);
102 	dev = dacf_get_dev(info_hdl);
103 
104 	if ((err = softmac_create(dip, dev)) != 0) {
105 		const char	*drvname;
106 		int		ppa;
107 
108 		drvname = ddi_driver_name(dip);
109 		ppa = i_ddi_devi_get_ppa(dip);
110 		cmn_err(CE_WARN, "net_postattach: cannot create softmac "
111 		    "for device %s%d (%d)", drvname, ppa, err);
112 		return (DACF_FAILURE);
113 	}
114 
115 	return (DACF_SUCCESS);
116 }
117 
118 /*
119  * Pre-detach routine invoked for DDI_NT_NET drivers by DACF framework
120  */
121 /* ARGSUSED */
122 static int
123 net_predetach(dacf_infohdl_t info_hdl, dacf_arghdl_t arg_hdl, int flags)
124 {
125 	dev_info_t	*dip;
126 	dev_t		dev;
127 
128 	dip = dacf_devinfo_node(info_hdl);
129 	dev = dacf_get_dev(info_hdl);
130 
131 	if (softmac_destroy(dip, dev) != 0)
132 		return (DACF_FAILURE);
133 
134 	return (DACF_SUCCESS);
135 }
136