dapl_evd_qp_async_error_callb.c revision 9e39c5ba00a55fa05777cc94b148296af305e135
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved.
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
*
* MODULE: dapl_evd_qp_async_error_callback.c
*
* PURPOSE: implements QP callbacks from verbs
*
* $Id: dapl_evd_qp_async_error_callb.c,v 1.17 2003/07/31 13:55:18 hobie16 Exp $
*/
#include "dapl.h"
#include "dapl_evd_util.h"
#include "dapl_adapter_util.h"
/*
* dapl_evd_qp_async_error_callback
*
* The callback function registered with verbs for qp async erros
*
* Input:
* ib_cm_handle,
* ib_cm_event
* cause_ptr
* context (evd)
*
* Output:
* None
*
*/
void
dapl_evd_qp_async_error_callback(
IN ib_hca_handle_t ib_hca_handle,
IN ib_qp_handle_t ib_qp_handle,
IN ib_error_record_t *cause_ptr,
IN void *context) /* ARGSUSED */
{
/*
* This is an affiliated error and hence should be able to
* supply us with exact information on the error type and QP.
*
* However the Mellanox and IBM APIs for registering this callback
* are different.
*
* The IBM API allows consumers to register the callback with
*
* ib_int32_t
* ib_set_qp_async_error_eh_us (
* ib_hca_handle_t hca_handle,
* ib_qp_async_handler_t handler )
*
* Notice that this function does not take a context. The context is
* specified per QP in the call to ib_qp_create_us().
*
* In contrast the Mellanox API requires that the context be specified
* when the funciton is registered:
*
* VAPI_ret_t
* VAPI_set_async_event_handler (
* IN VAPI_hca_hndl_t hca_hndl,
* IN VAPI_async_event_handler_t handler,
* IN void* private_data )
*
* Therefore we always specify the context as the asyncronous EVD
* to be compatible with both APIs.
*/
DAPL_IA *ia_ptr;
DAPL_EP *ep_ptr;
DAPL_EVD *async_evd;
DAT_EVENT_NUMBER async_event;
DAT_RETURN dat_status;
ep_ptr = (DAPL_EP *) context;
ia_ptr = ep_ptr->header.owner_ia;
async_evd = (DAPL_EVD *) ia_ptr->async_error_evd;
dapl_dbg_log(DAPL_DBG_TYPE_CALLBACK | DAPL_DBG_TYPE_EXCEPTION,
"--> dapl_evd_qp_async_error_callback: ep %p qp %p (%x) state %d\n",
ep_ptr,
ep_ptr->qp_handle,
ep_ptr->qpn,
ep_ptr->param.ep_state);
/*
* Transition to ERROR if we are connected; other states need to
* complete first (e.g. pending states)
*/
if (ep_ptr->param.ep_state == DAT_EP_STATE_CONNECTED) {
ep_ptr->param.ep_state = DAT_EP_STATE_ERROR;
}
dapl_os_assert(async_evd != NULL);
dat_status = dapls_ib_get_async_event(cause_ptr, &async_event);
if (dat_status == DAT_SUCCESS) {
/*
* If dapls_ib_get_async_event is not successful,
* an event has been generated by the provide that
* we are not interested in.
*/
(void) dapls_evd_post_async_error_event(async_evd,
async_event,
async_evd->header.owner_ia);
}
dapl_dbg_log(DAPL_DBG_TYPE_CALLBACK | DAPL_DBG_TYPE_EXCEPTION,
"dapl_evd_qp_async_error_callback () returns\n");
}
/*
* Local variables:
* c-indent-level: 4
* c-basic-offset: 4
* tab-width: 8
* End:
*/