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2 * This file is provided under a dual BSD/GPLv2 license. When using or
3 * redistributing this file, you may do so under either license.
7 * Copyright(c) 2012 Intel Corporation. All rights reserved.
8 * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
16 * Copyright(c) 2012 Intel Corporation. All rights reserved.
17 * Copyright (C) 2015 EMC Corporation. All Rights Reserved.
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions
23 * * Redistributions of source code must retain the above copyright
24 * notice, this list of conditions and the following disclaimer.
25 * * Redistributions in binary form must reproduce the above copy
26 * notice, this list of conditions and the following disclaimer in
27 * the documentation and/or other materials provided with the
29 * * Neither the name of Intel Corporation nor the names of its
30 * contributors may be used to endorse or promote products derived
31 * from this software without specific prior written permission.
33 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
34 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
35 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
36 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
37 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
38 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
39 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
40 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
41 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
42 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
43 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
45 * PCIe NTB Transport Linux driver
47 * Contact Information:
48 * Jon Mason <jon.mason@intel.com>
51 struct ntb_transport_qp
;
53 struct ntb_transport_client
{
54 struct device_driver driver
;
55 int (*probe
)(struct device
*client_dev
);
56 void (*remove
)(struct device
*client_dev
);
59 int ntb_transport_register_client(struct ntb_transport_client
*drvr
);
60 void ntb_transport_unregister_client(struct ntb_transport_client
*drvr
);
61 int ntb_transport_register_client_dev(char *device_name
);
62 void ntb_transport_unregister_client_dev(char *device_name
);
64 struct ntb_queue_handlers
{
65 void (*rx_handler
)(struct ntb_transport_qp
*qp
, void *qp_data
,
67 void (*tx_handler
)(struct ntb_transport_qp
*qp
, void *qp_data
,
69 void (*event_handler
)(void *data
, int status
);
72 unsigned char ntb_transport_qp_num(struct ntb_transport_qp
*qp
);
73 unsigned int ntb_transport_max_size(struct ntb_transport_qp
*qp
);
74 struct ntb_transport_qp
*
75 ntb_transport_create_queue(void *data
, struct device
*client_dev
,
76 const struct ntb_queue_handlers
*handlers
);
77 void ntb_transport_free_queue(struct ntb_transport_qp
*qp
);
78 int ntb_transport_rx_enqueue(struct ntb_transport_qp
*qp
, void *cb
, void *data
,
80 int ntb_transport_tx_enqueue(struct ntb_transport_qp
*qp
, void *cb
, void *data
,
82 void *ntb_transport_rx_remove(struct ntb_transport_qp
*qp
, unsigned int *len
);
83 void ntb_transport_link_up(struct ntb_transport_qp
*qp
);
84 void ntb_transport_link_down(struct ntb_transport_qp
*qp
);
85 bool ntb_transport_link_query(struct ntb_transport_qp
*qp
);
86 unsigned int ntb_transport_tx_free_entry(struct ntb_transport_qp
*qp
);