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073bb189 SM |
1 | /* |
2 | * Copyright (c) 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_ESWITCH_H__ | |
34 | #define __MLX5_ESWITCH_H__ | |
35 | ||
77256579 SM |
36 | #include <linux/if_ether.h> |
37 | #include <linux/if_link.h> | |
073bb189 SM |
38 | #include <linux/mlx5/device.h> |
39 | ||
40 | #define MLX5_MAX_UC_PER_VPORT(dev) \ | |
41 | (1 << MLX5_CAP_GEN(dev, log_max_current_uc_list)) | |
42 | ||
43 | #define MLX5_MAX_MC_PER_VPORT(dev) \ | |
44 | (1 << MLX5_CAP_GEN(dev, log_max_current_mc_list)) | |
45 | ||
46 | #define MLX5_L2_ADDR_HASH_SIZE (BIT(BITS_PER_BYTE)) | |
47 | #define MLX5_L2_ADDR_HASH(addr) (addr[5]) | |
48 | ||
49 | /* L2 -mac address based- hash helpers */ | |
50 | struct l2addr_node { | |
51 | struct hlist_node hlist; | |
52 | u8 addr[ETH_ALEN]; | |
53 | }; | |
54 | ||
55 | #define for_each_l2hash_node(hn, tmp, hash, i) \ | |
56 | for (i = 0; i < MLX5_L2_ADDR_HASH_SIZE; i++) \ | |
57 | hlist_for_each_entry_safe(hn, tmp, &hash[i], hlist) | |
58 | ||
59 | #define l2addr_hash_find(hash, mac, type) ({ \ | |
60 | int ix = MLX5_L2_ADDR_HASH(mac); \ | |
61 | bool found = false; \ | |
62 | type *ptr = NULL; \ | |
63 | \ | |
64 | hlist_for_each_entry(ptr, &hash[ix], node.hlist) \ | |
65 | if (ether_addr_equal(ptr->node.addr, mac)) {\ | |
66 | found = true; \ | |
67 | break; \ | |
68 | } \ | |
69 | if (!found) \ | |
70 | ptr = NULL; \ | |
71 | ptr; \ | |
72 | }) | |
73 | ||
74 | #define l2addr_hash_add(hash, mac, type, gfp) ({ \ | |
75 | int ix = MLX5_L2_ADDR_HASH(mac); \ | |
76 | type *ptr = NULL; \ | |
77 | \ | |
78 | ptr = kzalloc(sizeof(type), gfp); \ | |
79 | if (ptr) { \ | |
80 | ether_addr_copy(ptr->node.addr, mac); \ | |
81 | hlist_add_head(&ptr->node.hlist, &hash[ix]);\ | |
82 | } \ | |
83 | ptr; \ | |
84 | }) | |
85 | ||
86 | #define l2addr_hash_del(ptr) ({ \ | |
87 | hlist_del(&ptr->node.hlist); \ | |
88 | kfree(ptr); \ | |
89 | }) | |
90 | ||
81848731 SM |
91 | struct mlx5_flow_rule { |
92 | void *ft; | |
93 | u32 fi; | |
94 | u8 match_criteria_enable; | |
95 | u32 *match_criteria; | |
96 | u32 *match_value; | |
97 | u32 action; | |
98 | u32 flow_tag; | |
99 | bool valid; | |
100 | atomic_t refcount; | |
101 | struct mutex mutex; /* protect flow rule updates */ | |
102 | struct list_head dest_list; | |
103 | }; | |
104 | ||
073bb189 SM |
105 | struct mlx5_vport { |
106 | struct mlx5_core_dev *dev; | |
107 | int vport; | |
108 | struct hlist_head uc_list[MLX5_L2_ADDR_HASH_SIZE]; | |
81848731 | 109 | struct hlist_head mc_list[MLX5_L2_ADDR_HASH_SIZE]; |
073bb189 SM |
110 | struct work_struct vport_change_handler; |
111 | ||
112 | /* This spinlock protects access to vport data, between | |
113 | * "esw_vport_disable" and ongoing interrupt "mlx5_eswitch_vport_event" | |
114 | * once vport marked as disabled new interrupts are discarded. | |
115 | */ | |
116 | spinlock_t lock; /* vport events sync */ | |
117 | bool enabled; | |
81848731 | 118 | u16 enabled_events; |
073bb189 SM |
119 | }; |
120 | ||
121 | struct mlx5_l2_table { | |
122 | struct hlist_head l2_hash[MLX5_L2_ADDR_HASH_SIZE]; | |
123 | u32 size; | |
124 | unsigned long *bitmap; | |
125 | }; | |
126 | ||
81848731 SM |
127 | struct mlx5_eswitch_fdb { |
128 | void *fdb; | |
129 | }; | |
130 | ||
073bb189 SM |
131 | struct mlx5_eswitch { |
132 | struct mlx5_core_dev *dev; | |
133 | struct mlx5_l2_table l2_table; | |
81848731 SM |
134 | struct mlx5_eswitch_fdb fdb_table; |
135 | struct hlist_head mc_table[MLX5_L2_ADDR_HASH_SIZE]; | |
073bb189 SM |
136 | struct workqueue_struct *work_queue; |
137 | struct mlx5_vport *vports; | |
138 | int total_vports; | |
81848731 | 139 | int enabled_vports; |
073bb189 SM |
140 | }; |
141 | ||
142 | /* E-Switch API */ | |
143 | int mlx5_eswitch_init(struct mlx5_core_dev *dev); | |
144 | void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw); | |
145 | void mlx5_eswitch_vport_event(struct mlx5_eswitch *esw, struct mlx5_eqe *eqe); | |
81848731 SM |
146 | int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs); |
147 | void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw); | |
77256579 SM |
148 | int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw, |
149 | int vport, u8 mac[ETH_ALEN]); | |
150 | int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw, | |
151 | int vport, int link_state); | |
9e7ea352 SM |
152 | int mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw, |
153 | int vport, u16 vlan, u8 qos); | |
77256579 SM |
154 | int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw, |
155 | int vport, struct ifla_vf_info *ivi); | |
073bb189 SM |
156 | |
157 | #endif /* __MLX5_ESWITCH_H__ */ |