1 /*
2 * Copyright (c) 2016, Mellanox Technologies. 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 #include <linux/module.h>
34 #include <linux/mlx5/vport.h>
35 #include "mlx5_ib.h"
36
mlx_to_net_policy(enum port_state_policy mlx_policy)37 static inline u32 mlx_to_net_policy(enum port_state_policy mlx_policy)
38 {
39 switch (mlx_policy) {
40 case MLX5_POLICY_DOWN:
41 return IFLA_VF_LINK_STATE_DISABLE;
42 case MLX5_POLICY_UP:
43 return IFLA_VF_LINK_STATE_ENABLE;
44 case MLX5_POLICY_FOLLOW:
45 return IFLA_VF_LINK_STATE_AUTO;
46 default:
47 return __IFLA_VF_LINK_STATE_MAX;
48 }
49 }
50
mlx5_ib_get_vf_config(struct ib_device * device,int vf,u8 port,struct ifla_vf_info * info)51 int mlx5_ib_get_vf_config(struct ib_device *device, int vf, u8 port,
52 struct ifla_vf_info *info)
53 {
54 struct mlx5_ib_dev *dev = to_mdev(device);
55 struct mlx5_core_dev *mdev = dev->mdev;
56 struct mlx5_hca_vport_context *rep;
57 int err;
58
59 rep = kzalloc(sizeof(*rep), GFP_KERNEL);
60 if (!rep)
61 return -ENOMEM;
62
63 err = mlx5_query_hca_vport_context(mdev, 1, 1, vf + 1, rep);
64 if (err) {
65 mlx5_ib_warn(dev, "failed to query port policy for vf %d (%d)\n",
66 vf, err);
67 goto free;
68 }
69 memset(info, 0, sizeof(*info));
70 info->linkstate = mlx_to_net_policy(rep->policy);
71 if (info->linkstate == __IFLA_VF_LINK_STATE_MAX)
72 err = -EINVAL;
73
74 free:
75 kfree(rep);
76 return err;
77 }
78
net_to_mlx_policy(int policy)79 static inline enum port_state_policy net_to_mlx_policy(int policy)
80 {
81 switch (policy) {
82 case IFLA_VF_LINK_STATE_DISABLE:
83 return MLX5_POLICY_DOWN;
84 case IFLA_VF_LINK_STATE_ENABLE:
85 return MLX5_POLICY_UP;
86 case IFLA_VF_LINK_STATE_AUTO:
87 return MLX5_POLICY_FOLLOW;
88 default:
89 return MLX5_POLICY_INVALID;
90 }
91 }
92
mlx5_ib_set_vf_link_state(struct ib_device * device,int vf,u8 port,int state)93 int mlx5_ib_set_vf_link_state(struct ib_device *device, int vf,
94 u8 port, int state)
95 {
96 struct mlx5_ib_dev *dev = to_mdev(device);
97 struct mlx5_core_dev *mdev = dev->mdev;
98 struct mlx5_hca_vport_context *in;
99 struct mlx5_vf_context *vfs_ctx = mdev->priv.sriov.vfs_ctx;
100 int err;
101
102 in = kzalloc(sizeof(*in), GFP_KERNEL);
103 if (!in)
104 return -ENOMEM;
105
106 in->policy = net_to_mlx_policy(state);
107 if (in->policy == MLX5_POLICY_INVALID) {
108 err = -EINVAL;
109 goto out;
110 }
111 in->field_select = MLX5_HCA_VPORT_SEL_STATE_POLICY;
112 err = mlx5_core_modify_hca_vport_context(mdev, 1, 1, vf + 1, in);
113 if (!err)
114 vfs_ctx[vf].policy = in->policy;
115
116 out:
117 kfree(in);
118 return err;
119 }
120
mlx5_ib_get_vf_stats(struct ib_device * device,int vf,u8 port,struct ifla_vf_stats * stats)121 int mlx5_ib_get_vf_stats(struct ib_device *device, int vf,
122 u8 port, struct ifla_vf_stats *stats)
123 {
124 int out_sz = MLX5_ST_SZ_BYTES(query_vport_counter_out);
125 struct mlx5_core_dev *mdev;
126 struct mlx5_ib_dev *dev;
127 void *out;
128 int err;
129
130 dev = to_mdev(device);
131 mdev = dev->mdev;
132
133 out = kzalloc(out_sz, GFP_KERNEL);
134 if (!out)
135 return -ENOMEM;
136
137 err = mlx5_core_query_vport_counter(mdev, true, vf, port, out, out_sz);
138 if (err)
139 goto ex;
140
141 stats->rx_packets = MLX5_GET64_PR(query_vport_counter_out, out, received_ib_unicast.packets);
142 stats->tx_packets = MLX5_GET64_PR(query_vport_counter_out, out, transmitted_ib_unicast.packets);
143 stats->rx_bytes = MLX5_GET64_PR(query_vport_counter_out, out, received_ib_unicast.octets);
144 stats->tx_bytes = MLX5_GET64_PR(query_vport_counter_out, out, transmitted_ib_unicast.octets);
145 stats->multicast = MLX5_GET64_PR(query_vport_counter_out, out, received_ib_multicast.packets);
146
147 ex:
148 kfree(out);
149 return err;
150 }
151
set_vf_node_guid(struct ib_device * device,int vf,u8 port,u64 guid)152 static int set_vf_node_guid(struct ib_device *device, int vf, u8 port, u64 guid)
153 {
154 struct mlx5_ib_dev *dev = to_mdev(device);
155 struct mlx5_core_dev *mdev = dev->mdev;
156 struct mlx5_hca_vport_context *in;
157 struct mlx5_vf_context *vfs_ctx = mdev->priv.sriov.vfs_ctx;
158 int err;
159
160 in = kzalloc(sizeof(*in), GFP_KERNEL);
161 if (!in)
162 return -ENOMEM;
163
164 in->field_select = MLX5_HCA_VPORT_SEL_NODE_GUID;
165 in->node_guid = guid;
166 err = mlx5_core_modify_hca_vport_context(mdev, 1, 1, vf + 1, in);
167 if (!err)
168 vfs_ctx[vf].node_guid = guid;
169 kfree(in);
170 return err;
171 }
172
set_vf_port_guid(struct ib_device * device,int vf,u8 port,u64 guid)173 static int set_vf_port_guid(struct ib_device *device, int vf, u8 port, u64 guid)
174 {
175 struct mlx5_ib_dev *dev = to_mdev(device);
176 struct mlx5_core_dev *mdev = dev->mdev;
177 struct mlx5_hca_vport_context *in;
178 struct mlx5_vf_context *vfs_ctx = mdev->priv.sriov.vfs_ctx;
179 int err;
180
181 in = kzalloc(sizeof(*in), GFP_KERNEL);
182 if (!in)
183 return -ENOMEM;
184
185 in->field_select = MLX5_HCA_VPORT_SEL_PORT_GUID;
186 in->port_guid = guid;
187 err = mlx5_core_modify_hca_vport_context(mdev, 1, 1, vf + 1, in);
188 if (!err)
189 vfs_ctx[vf].port_guid = guid;
190 kfree(in);
191 return err;
192 }
193
mlx5_ib_set_vf_guid(struct ib_device * device,int vf,u8 port,u64 guid,int type)194 int mlx5_ib_set_vf_guid(struct ib_device *device, int vf, u8 port,
195 u64 guid, int type)
196 {
197 if (type == IFLA_VF_IB_NODE_GUID)
198 return set_vf_node_guid(device, vf, port, guid);
199 else if (type == IFLA_VF_IB_PORT_GUID)
200 return set_vf_port_guid(device, vf, port, guid);
201
202 return -EINVAL;
203 }
204
