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/* ====================================================================
*
*
* BSD LICENSE
*
* Copyright(c) 2016-2025 Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* ====================================================================
*/
/*****************************************************************************
* @file qat_hw_polling.h
*
* This file provides an interface for polling in QAT engine
*
*****************************************************************************/
#ifndef QAT_HW_POLLING_H
# define QAT_HW_POLLING_H
# include "cpa.h"
# include "cpa_types.h"
# include "e_qat.h"
# include "qat_fork.h"
# ifndef __FreeBSD__
# include <sys/epoll.h>
# endif
# define MAX_EVENTS 32
/* Globals */
typedef struct {
int eng_fd;
int inst_index;
} ENGINE_EPOLL_ST;
# ifndef __FreeBSD__
extern struct epoll_event eng_epoll_events[QAT_MAX_CRYPTO_INSTANCES];
extern ENGINE_EPOLL_ST eng_poll_st[QAT_MAX_CRYPTO_INSTANCES];
# endif
extern int internal_efd;
int getQatMsgRetryCount();
useconds_t getQatPollInterval();
int getEnableInlinePolling();
/******************************************************************************
* function:
* void *qat_timer_poll_func(void *ih)
*
* @param ih [IN] - NULL
*
* description:
* Poll the QAT instances (nanosleep version)
* NB: Delay in this function is set by default at runtime by an engine
* specific message. If not set then the default is QAT_POLL_PERIOD_IN_NS.
* This function uses pthread signals to wait for a signal
* that there is traffic to process and therefore that QAT engine polling
* needs to be started/resumed.
*
******************************************************************************/
void *qat_timer_poll_func(void *ih);
# ifndef __FreeBSD__
void *event_poll_func(void *ih);
# endif
CpaStatus poll_instances(void);
CpaStatus poll_heartbeat(void);
#endif /* QAT_HW_POLLING_H */
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