/*
 * This file is part of the Distributed Network Block Device 3
 *
 * Copyright(c) 2019 Frederic Robra <frederic@robra.org>
 *
 * This file may be licensed under the terms of of the
 * GNU General Public License Version 2 (the ``GPL'').
 *
 * Software distributed under the License is distributed
 * on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either
 * express or implied. See the GPL for the specific language
 * governing rights and limitations.
 *
 * You should have received a copy of the GPL along with this
 * program. If not, go to http://www.gnu.org/licenses/gpl.html
 * or write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#ifndef MQ_H_
#define MQ_H_

#include "dnbd3.h"


/**
 * dnbd3_is_mq_busy - check if mq is busy
 * @dev: the device
 *
 * sets bit to 1, where socket is busy
 */
unsigned long dnbd3_is_mq_busy(struct dnbd3_device *dev);

void dndb3_reque_busy_requests(struct dnbd3_sock *sock);

/**
 * dnbd3_requeue_cmd - requeue a command once
 * @cmd: the command to requeue
 */
void dnbd3_requeue_cmd(struct dnbd3_cmd *cmd);


/**
 * dnbd3_end_request - end a blk request
 * @cmd: the command to end the request with
 * @error: the status
 */
void dnbd3_end_cmd(struct dnbd3_cmd *cmd, blk_status_t error);

/**
 * struct blk_mq_ops - dnbd3_mq_ops
 * multiqueue operations
 */
extern struct blk_mq_ops dnbd3_mq_ops;

#endif /* MQ_H_ */