1 /*
2  * Copyright (c) 2013-2015, Mellanox Technologies, Ltd.  All rights reserved.
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and/or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  */
32 
33 #ifndef __TRANSOBJ_H__
34 #define __TRANSOBJ_H__
35 
36 #include <linux/mlx5/driver.h>
37 
38 int mlx5_core_alloc_transport_domain(struct mlx5_core_dev *dev, u32 *tdn);
39 void mlx5_core_dealloc_transport_domain(struct mlx5_core_dev *dev, u32 tdn);
40 int mlx5_core_create_rq(struct mlx5_core_dev *dev, u32 *in, int inlen,
41 			u32 *rqn);
42 int mlx5_core_modify_rq(struct mlx5_core_dev *dev, u32 rqn, u32 *in);
43 void mlx5_core_destroy_rq(struct mlx5_core_dev *dev, u32 rqn);
44 int mlx5_core_query_rq(struct mlx5_core_dev *dev, u32 rqn, u32 *out);
45 int mlx5_core_create_sq(struct mlx5_core_dev *dev, u32 *in, int inlen,
46 			u32 *sqn);
47 int mlx5_core_modify_sq(struct mlx5_core_dev *dev, u32 sqn, u32 *in);
48 void mlx5_core_destroy_sq(struct mlx5_core_dev *dev, u32 sqn);
49 int mlx5_core_query_sq(struct mlx5_core_dev *dev, u32 sqn, u32 *out);
50 int mlx5_core_query_sq_state(struct mlx5_core_dev *dev, u32 sqn, u8 *state);
51 int mlx5_core_create_tir(struct mlx5_core_dev *dev, u32 *in, u32 *tirn);
52 int mlx5_core_modify_tir(struct mlx5_core_dev *dev, u32 tirn, u32 *in);
53 void mlx5_core_destroy_tir(struct mlx5_core_dev *dev, u32 tirn);
54 int mlx5_core_create_tis(struct mlx5_core_dev *dev, u32 *in, u32 *tisn);
55 int mlx5_core_modify_tis(struct mlx5_core_dev *dev, u32 tisn, u32 *in);
56 void mlx5_core_destroy_tis(struct mlx5_core_dev *dev, u32 tisn);
57 int mlx5_core_create_rqt(struct mlx5_core_dev *dev, u32 *in, int inlen,
58 			 u32 *rqtn);
59 int mlx5_core_modify_rqt(struct mlx5_core_dev *dev, u32 rqtn, u32 *in,
60 			 int inlen);
61 void mlx5_core_destroy_rqt(struct mlx5_core_dev *dev, u32 rqtn);
62 
63 struct mlx5_hairpin_params {
64 	u8  log_data_size;
65 	u8  log_num_packets;
66 	u16 q_counter;
67 	int num_channels;
68 };
69 
70 struct mlx5_hairpin {
71 	struct mlx5_core_dev *func_mdev;
72 	struct mlx5_core_dev *peer_mdev;
73 
74 	int num_channels;
75 
76 	u32 *rqn;
77 	u32 *sqn;
78 
79 	bool peer_gone;
80 };
81 
82 struct mlx5_hairpin *
83 mlx5_core_hairpin_create(struct mlx5_core_dev *func_mdev,
84 			 struct mlx5_core_dev *peer_mdev,
85 			 struct mlx5_hairpin_params *params);
86 
87 void mlx5_core_hairpin_destroy(struct mlx5_hairpin *pair);
88 void mlx5_core_hairpin_clear_dead_peer(struct mlx5_hairpin *hp);
89 #endif /* __TRANSOBJ_H__ */
90