usr/src/uts/common/io/net_dacf.c

   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 }