87 lines
3.8 KiB
C
87 lines
3.8 KiB
C
|
/*
|
||
|
|
* This file is provided under a dual BSD/GPLv2 license. When using or
|
||
|
|
* redistributing this file, you may do so under either license.
|
||
|
|
*
|
||
|
|
* GPL LICENSE SUMMARY
|
||
|
|
*
|
||
|
|
* Copyright(c) 2012 Intel Corporation. All rights reserved.
|
||
|
|
* Copyright (C) 2015 EMC Corporation. All Rights Reserved.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of version 2 of the GNU General Public License as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* BSD LICENSE
|
||
|
|
*
|
||
|
|
* Copyright(c) 2012 Intel Corporation. All rights reserved.
|
||
|
|
* Copyright (C) 2015 EMC 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 copy
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* PCIe NTB Transport Linux driver
|
||
|
|
*
|
||
|
|
* Contact Information:
|
||
|
|
* Jon Mason <jon.mason@intel.com>
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct ntb_transport_qp;
|
||
|
|
|
||
|
|
struct ntb_transport_client {
|
||
|
|
struct device_driver driver;
|
||
|
|
int (*probe)(struct device *client_dev);
|
||
|
|
void (*remove)(struct device *client_dev);
|
||
|
|
};
|
||
|
|
|
||
|
|
int ntb_transport_register_client(struct ntb_transport_client *drvr);
|
||
|
|
void ntb_transport_unregister_client(struct ntb_transport_client *drvr);
|
||
|
|
int ntb_transport_register_client_dev(char *device_name);
|
||
|
|
void ntb_transport_unregister_client_dev(char *device_name);
|
||
|
|
|
||
|
|
struct ntb_queue_handlers {
|
||
|
|
void (*rx_handler)(struct ntb_transport_qp *qp, void *qp_data,
|
||
|
|
void *data, int len);
|
||
|
|
void (*tx_handler)(struct ntb_transport_qp *qp, void *qp_data,
|
||
|
|
void *data, int len);
|
||
|
|
void (*event_handler)(void *data, int status);
|
||
|
|
};
|
||
|
|
|
||
|
|
unsigned char ntb_transport_qp_num(struct ntb_transport_qp *qp);
|
||
|
|
unsigned int ntb_transport_max_size(struct ntb_transport_qp *qp);
|
||
|
|
struct ntb_transport_qp *
|
||
|
|
ntb_transport_create_queue(void *data, struct device *client_dev,
|
||
|
|
const struct ntb_queue_handlers *handlers);
|
||
|
|
void ntb_transport_free_queue(struct ntb_transport_qp *qp);
|
||
|
|
int ntb_transport_rx_enqueue(struct ntb_transport_qp *qp, void *cb, void *data,
|
||
|
|
unsigned int len);
|
||
|
|
int ntb_transport_tx_enqueue(struct ntb_transport_qp *qp, void *cb, void *data,
|
||
|
|
unsigned int len);
|
||
|
|
void *ntb_transport_rx_remove(struct ntb_transport_qp *qp, unsigned int *len);
|
||
|
|
void ntb_transport_link_up(struct ntb_transport_qp *qp);
|
||
|
|
void ntb_transport_link_down(struct ntb_transport_qp *qp);
|
||
|
|
bool ntb_transport_link_query(struct ntb_transport_qp *qp);
|
||
|
|
unsigned int ntb_transport_tx_free_entry(struct ntb_transport_qp *qp);
|