2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License (the "License").
2N/A * You may not use this file except in compliance with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A
2N/A/*
2N/A * Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved.
2N/A */
2N/A
2N/A/*
2N/A * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
2N/A * Use is subject to license terms.
2N/A */
2N/A
2N/A/*
2N/A *
2N/A * MODULE: dapl_psp_free.c
2N/A *
2N/A * PURPOSE: Connection management
2N/A * Description: Interfaces in this file are completely described in
2N/A * the DAPL 1.1 API, Chapter 6, section 4
2N/A *
2N/A * $Id: dapl_psp_free.c,v 1.17 2003/07/25 19:24:11 sjs2 Exp $
2N/A */
2N/A
2N/A#include "dapl.h"
2N/A#include "dapl_sp_util.h"
2N/A#include "dapl_ia_util.h"
2N/A#include "dapl_adapter_util.h"
2N/A
2N/A/*
2N/A * dapl_psp_free
2N/A *
2N/A * uDAPL: User Direct Access Program Library Version 1.1, 6.4.1.2
2N/A *
2N/A * Destroy a specific instance of a Service Point.
2N/A *
2N/A * Input:
2N/A * psp_handle
2N/A *
2N/A * Output:
2N/A * none
2N/A *
2N/A * Returns:
2N/A * DAT_SUCCESS
2N/A * DAT_INVALID_PARAMETER
2N/A */
2N/A
2N/ADAT_RETURN
2N/Adapl_psp_free(
2N/A IN DAT_PSP_HANDLE psp_handle)
2N/A{
2N/A DAPL_IA *ia_ptr;
2N/A DAPL_SP *sp_ptr;
2N/A DAT_RETURN dat_status;
2N/A
2N/A sp_ptr = (DAPL_SP *) psp_handle;
2N/A dat_status = DAT_SUCCESS;
2N/A /*
2N/A * Verify handle
2N/A */
2N/A dapl_dbg_log(DAPL_DBG_TYPE_CM, ">>> dapl_psp_free %p\n", psp_handle);
2N/A
2N/A if (DAPL_BAD_HANDLE(sp_ptr, DAPL_MAGIC_PSP)) {
2N/A dat_status = DAT_ERROR(DAT_INVALID_HANDLE,
2N/A DAT_INVALID_HANDLE_PSP);
2N/A goto bail;
2N/A }
2N/A
2N/A /* ia_ptr = (DAPL_IA *)sp_ptr->header.owner_ia; */
2N/A ia_ptr = sp_ptr->header.owner_ia;
2N/A /*
2N/A * Remove the connection listener if it has been established
2N/A * and there are no current connections in progress.
2N/A * If we defer removing the sp it becomes something of a zombie
2N/A * container until the last connection is disconnected, after
2N/A * which it will be cleaned up.
2N/A */
2N/A dapl_os_lock(&sp_ptr->header.lock);
2N/A sp_ptr->listening = DAT_FALSE;
2N/A /*
2N/A * Release reference on EVD.
2N/A * If an error was encountered in a previous
2N/A * free the evd_handle will be NULL
2N/A */
2N/A if (sp_ptr->evd_handle) {
2N/A dapl_os_atomic_dec(&((DAPL_EVD *)sp_ptr->evd_handle)->
2N/A evd_ref_count);
2N/A sp_ptr->evd_handle = NULL;
2N/A }
2N/A /*
2N/A * Release the base resource if there are no outstanding
2N/A * connections; else the last disconnect on this PSP will free it
2N/A * up. The PSP is used to contain CR records for each connection,
2N/A * which contain information necessary to disconnect.
2N/A */
2N/A if ((sp_ptr->state == DAPL_SP_STATE_PSP_LISTENING) &&
2N/A (sp_ptr->cr_list_count == 0)) {
2N/A sp_ptr->state = DAPL_SP_STATE_FREE;
2N/A dapl_os_unlock(&sp_ptr->header.lock);
2N/A dat_status = dapls_ib_remove_conn_listener(ia_ptr, sp_ptr);
2N/A if (dat_status != DAT_SUCCESS) {
2N/A /* revert to entry state on error */
2N/A sp_ptr->state = DAPL_SP_STATE_PSP_LISTENING;
2N/A goto bail;
2N/A }
2N/A dapls_ia_unlink_sp(ia_ptr, sp_ptr);
2N/A dapls_sp_free_sp(sp_ptr);
2N/A } else {
2N/A /*
2N/A * The PSP is now in the pending state, where it will sit until
2N/A * the last connection terminates or the app uses the same
2N/A * ServiceID again, which will reactivate it.
2N/A */
2N/A sp_ptr->state = DAPL_SP_STATE_PSP_PENDING;
2N/A dapl_os_unlock(&sp_ptr->header.lock);
2N/A }
2N/A
2N/Abail:
2N/A return (dat_status);
2N/A}