dapl_psp_create_any.c revision 9517:b4839b0aa7a4
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_psp_create.c 34 * 35 * PURPOSE: Connection management 36 * Description: Interfaces in this file are completely described in 37 * the DAPL 1.1 API, Chapter 6, section 4 38 * 39 * $Id: dapl_psp_create_any.c,v 1.4 2003/06/23 12:28:05 sjs2 Exp $ 40 */ 41 42#include "dapl.h" 43#include "dapl_sp_util.h" 44#include "dapl_ia_util.h" 45#include "dapl_adapter_util.h" 46 47/* 48 * dapl_psp_create_any 49 * 50 * uDAPL: User Direct Access Program Library Version 1.1, 6.4.3.3 51 * 52 * Create a persistent Public Service Point that can recieve multiple 53 * requests for connections and generate multiple connection request 54 * instances that wil be delivered to the specified Event Dispatcher 55 * in a notification event. Differs from dapl_psp_create() in that 56 * the conn_qual is selected by the implementation and returned to 57 * the user. 58 * 59 * Input: 60 * ia_handle 61 * evd_handle 62 * psp_flags 63 * 64 * Output: 65 * conn_qual 66 * psp_handle 67 * 68 * Returns: 69 * DAT_SUCCESS 70 * DAT_INSUFFICIENT_RESOURCES 71 * DAT_INVALID_HANDLE 72 * DAT_INVALID_PARAMETER 73 * DAT_CONN_QUAL_IN_USE 74 * DAT_MODEL_NOT_SUPPORTED 75 */ 76DAT_RETURN 77dapl_psp_create_any( 78 IN DAT_IA_HANDLE ia_handle, 79 OUT DAT_CONN_QUAL *conn_qual, 80 IN DAT_EVD_HANDLE evd_handle, 81 IN DAT_PSP_FLAGS psp_flags, 82 OUT DAT_PSP_HANDLE *psp_handle) 83{ 84 DAPL_IA *ia_ptr; 85 DAPL_SP *sp_ptr; 86 DAPL_EVD *evd_ptr; 87 DAT_RETURN dat_status; 88 89 ia_ptr = (DAPL_IA *)ia_handle; 90 dat_status = DAT_SUCCESS; 91 92 if (DAPL_BAD_HANDLE(ia_ptr, DAPL_MAGIC_IA)) { 93 dat_status = DAT_ERROR(DAT_INVALID_HANDLE, 94 DAT_INVALID_HANDLE_IA); 95 goto bail; 96 } 97 98 if (DAPL_BAD_HANDLE(evd_handle, DAPL_MAGIC_EVD)) { 99 dat_status = DAT_ERROR(DAT_INVALID_HANDLE, 100 DAT_INVALID_HANDLE_EVD_CR); 101 goto bail; 102 } 103 104 if (psp_handle == NULL) { 105 dat_status = DAT_ERROR(DAT_INVALID_PARAMETER, DAT_INVALID_ARG5); 106 goto bail; 107 } 108 109 if (conn_qual == NULL) { 110 dat_status = DAT_ERROR(DAT_INVALID_PARAMETER, DAT_INVALID_ARG2); 111 goto bail; 112 } 113 114 /* check for invalid psp flags */ 115 if ((psp_flags != DAT_PSP_CONSUMER_FLAG) && 116 (psp_flags != DAT_PSP_PROVIDER_FLAG)) { 117 dat_status = DAT_ERROR(DAT_INVALID_PARAMETER, DAT_INVALID_ARG4); 118 goto bail; 119 } 120 121 evd_ptr = (DAPL_EVD *)evd_handle; 122 if (!(evd_ptr->evd_flags & DAT_EVD_CR_FLAG)) { 123 dat_status = DAT_ERROR(DAT_INVALID_HANDLE, 124 DAT_INVALID_HANDLE_EVD_CR); 125 goto bail; 126 } 127 128 /* Allocate PSP */ 129 sp_ptr = dapls_sp_alloc(ia_ptr, DAT_TRUE); 130 if (sp_ptr == NULL) { 131 dat_status = DAT_ERROR(DAT_INSUFFICIENT_RESOURCES, 132 DAT_RESOURCE_MEMORY); 133 goto bail; 134 } 135 136 /* 137 * Fill out the args for a PSP 138 */ 139 sp_ptr->ia_handle = ia_handle; 140 sp_ptr->evd_handle = evd_handle; 141 sp_ptr->psp_flags = psp_flags; 142 sp_ptr->ep_handle = NULL; 143 144 /* 145 * Take a reference on the EVD handle 146 */ 147 (void) dapl_os_atomic_inc(&((DAPL_EVD *)evd_handle)->evd_ref_count); 148 149 /* Link it onto the IA */ 150 dapl_ia_link_psp(ia_ptr, sp_ptr); 151 152 /* 153 * Set up a listener for a connection. Connections can arrive 154 * even before this call returns! 155 */ 156 sp_ptr->state = DAPL_SP_STATE_PSP_LISTENING; 157 sp_ptr->listening = DAT_TRUE; 158 159 dat_status = dapls_ib_setup_conn_listener(ia_ptr, 0, sp_ptr); 160 161 if (dat_status != DAT_SUCCESS) { 162 /* 163 * Have a problem setting up the connection, something wrong! 164 */ 165 dapl_os_atomic_dec(&((DAPL_EVD *)evd_handle)->evd_ref_count); 166 sp_ptr->state = DAPL_SP_STATE_FREE; 167 sp_ptr->listening = DAT_FALSE; 168 (void) dapl_psp_free((DAT_PSP_HANDLE)sp_ptr); 169 170 dapl_dbg_log(DAPL_DBG_TYPE_ERR, 171 "--> dapl_psp_create cannot set up conn listener: %x\n", 172 dat_status); 173 174 goto bail; 175 } 176 177 /* 178 * Return handle to the user 179 */ 180 *conn_qual = sp_ptr->conn_qual; 181 *psp_handle = (DAT_PSP_HANDLE)sp_ptr; 182 183bail: 184 return (dat_status); 185} 186