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 __MLX5_CORE_H__
34 #define __MLX5_CORE_H__
35
36 #include <linux/types.h>
37 #include <linux/kernel.h>
38 #include <linux/sched.h>
39 #include <linux/if_link.h>
40
41 #define DRIVER_NAME "mlx5_core"
42 #define DRIVER_VERSION "3.0-1"
43 #define DRIVER_RELDATE "January 2015"
44
45 #define MLX5_TOTAL_VPORTS(mdev) (1 + pci_sriov_get_totalvfs(mdev->pdev))
46
47 extern uint mlx5_core_debug_mask;
48
49 #define mlx5_core_dbg(__dev, format, ...) \
50 dev_dbg(&(__dev)->pdev->dev, "%s:%d:(pid %d): " format, \
51 __func__, __LINE__, current->pid, \
52 ##__VA_ARGS__)
53
54 #define mlx5_core_dbg_mask(__dev, mask, format, ...) \
55 do { \
56 if ((mask) & mlx5_core_debug_mask) \
57 mlx5_core_dbg(__dev, format, ##__VA_ARGS__); \
58 } while (0)
59
60 #define mlx5_core_err(__dev, format, ...) \
61 dev_err(&(__dev)->pdev->dev, "%s:%d:(pid %d): " format, \
62 __func__, __LINE__, current->pid, \
63 ##__VA_ARGS__)
64
65 #define mlx5_core_warn(__dev, format, ...) \
66 dev_warn(&(__dev)->pdev->dev, "%s:%d:(pid %d): " format, \
67 __func__, __LINE__, current->pid, \
68 ##__VA_ARGS__)
69
70 #define mlx5_core_info(__dev, format, ...) \
71 dev_info(&(__dev)->pdev->dev, format, ##__VA_ARGS__)
72
73 enum {
74 MLX5_CMD_DATA, /* print command payload only */
75 MLX5_CMD_TIME, /* print command execution time */
76 };
77
78 enum {
79 MLX5_DRIVER_STATUS_ABORTED = 0xfe,
80 MLX5_DRIVER_SYND = 0xbadd00de,
81 };
82
83 int mlx5_query_hca_caps(struct mlx5_core_dev *dev);
84 int mlx5_query_board_id(struct mlx5_core_dev *dev);
85 int mlx5_cmd_init_hca(struct mlx5_core_dev *dev);
86 int mlx5_cmd_teardown_hca(struct mlx5_core_dev *dev);
87 void mlx5_core_event(struct mlx5_core_dev *dev, enum mlx5_dev_event event,
88 unsigned long param);
89 void mlx5_enter_error_state(struct mlx5_core_dev *dev);
90 void mlx5_disable_device(struct mlx5_core_dev *dev);
91 void mlx5_recover_device(struct mlx5_core_dev *dev);
92 int mlx5_sriov_init(struct mlx5_core_dev *dev);
93 void mlx5_sriov_cleanup(struct mlx5_core_dev *dev);
94 int mlx5_sriov_attach(struct mlx5_core_dev *dev);
95 void mlx5_sriov_detach(struct mlx5_core_dev *dev);
96 int mlx5_core_sriov_configure(struct pci_dev *dev, int num_vfs);
97 bool mlx5_sriov_is_enabled(struct mlx5_core_dev *dev);
98 int mlx5_core_enable_hca(struct mlx5_core_dev *dev, u16 func_id);
99 int mlx5_core_disable_hca(struct mlx5_core_dev *dev, u16 func_id);
100 int mlx5_wait_for_vf_pages(struct mlx5_core_dev *dev);
101 cycle_t mlx5_read_internal_timer(struct mlx5_core_dev *dev);
102 u32 mlx5_get_msix_vec(struct mlx5_core_dev *dev, int vecidx);
103 struct mlx5_eq *mlx5_eqn2eq(struct mlx5_core_dev *dev, int eqn);
104 void mlx5_cq_tasklet_cb(unsigned long data);
105
106 void mlx5_lag_add(struct mlx5_core_dev *dev, struct net_device *netdev);
107 void mlx5_lag_remove(struct mlx5_core_dev *dev);
108
109 void mlx5_add_device(struct mlx5_interface *intf, struct mlx5_priv *priv);
110 void mlx5_remove_device(struct mlx5_interface *intf, struct mlx5_priv *priv);
111 void mlx5_attach_device(struct mlx5_core_dev *dev);
112 void mlx5_detach_device(struct mlx5_core_dev *dev);
113 bool mlx5_device_registered(struct mlx5_core_dev *dev);
114 int mlx5_register_device(struct mlx5_core_dev *dev);
115 void mlx5_unregister_device(struct mlx5_core_dev *dev);
116 void mlx5_add_dev_by_protocol(struct mlx5_core_dev *dev, int protocol);
117 void mlx5_remove_dev_by_protocol(struct mlx5_core_dev *dev, int protocol);
118 struct mlx5_core_dev *mlx5_get_next_phys_dev(struct mlx5_core_dev *dev);
119 void mlx5_dev_list_lock(void);
120 void mlx5_dev_list_unlock(void);
121 int mlx5_dev_list_trylock(void);
122
123 bool mlx5_lag_intf_add(struct mlx5_interface *intf, struct mlx5_priv *priv);
124
125 void mlx5e_init(void);
126 void mlx5e_cleanup(void);
127
mlx5_lag_is_lacp_owner(struct mlx5_core_dev * dev)128 static inline int mlx5_lag_is_lacp_owner(struct mlx5_core_dev *dev)
129 {
130 /* LACP owner conditions:
131 * 1) Function is physical.
132 * 2) LAG is supported by FW.
133 * 3) LAG is managed by driver (currently the only option).
134 */
135 return MLX5_CAP_GEN(dev, vport_group_manager) &&
136 (MLX5_CAP_GEN(dev, num_lag_ports) > 1) &&
137 MLX5_CAP_GEN(dev, lag_master);
138 }
139
140 #endif /* __MLX5_CORE_H__ */
141