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,u32 port,struct ifla_vf_info * info)51 int mlx5_ib_get_vf_config(struct ib_device *device, int vf, u32 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,u32 port,int state)93 int mlx5_ib_set_vf_link_state(struct ib_device *device, int vf,
94 u32 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,u32 port,struct ifla_vf_stats * stats)121 int mlx5_ib_get_vf_stats(struct ib_device *device, int vf,
122 u32 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);
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,u32 port,u64 guid)152 static int set_vf_node_guid(struct ib_device *device, int vf, u32 port,
153 u64 guid)
154 {
155 struct mlx5_ib_dev *dev = to_mdev(device);
156 struct mlx5_core_dev *mdev = dev->mdev;
157 struct mlx5_hca_vport_context *in;
158 struct mlx5_vf_context *vfs_ctx = mdev->priv.sriov.vfs_ctx;
159 int err;
160
161 in = kzalloc(sizeof(*in), GFP_KERNEL);
162 if (!in)
163 return -ENOMEM;
164
165 in->field_select = MLX5_HCA_VPORT_SEL_NODE_GUID;
166 in->node_guid = guid;
167 err = mlx5_core_modify_hca_vport_context(mdev, 1, 1, vf + 1, in);
168 if (!err) {
169 vfs_ctx[vf].node_guid = guid;
170 vfs_ctx[vf].node_guid_valid = 1;
171 }
172 kfree(in);
173 return err;
174 }
175
set_vf_port_guid(struct ib_device * device,int vf,u32 port,u64 guid)176 static int set_vf_port_guid(struct ib_device *device, int vf, u32 port,
177 u64 guid)
178 {
179 struct mlx5_ib_dev *dev = to_mdev(device);
180 struct mlx5_core_dev *mdev = dev->mdev;
181 struct mlx5_hca_vport_context *in;
182 struct mlx5_vf_context *vfs_ctx = mdev->priv.sriov.vfs_ctx;
183 int err;
184
185 in = kzalloc(sizeof(*in), GFP_KERNEL);
186 if (!in)
187 return -ENOMEM;
188
189 in->field_select = MLX5_HCA_VPORT_SEL_PORT_GUID;
190 in->port_guid = guid;
191 err = mlx5_core_modify_hca_vport_context(mdev, 1, 1, vf + 1, in);
192 if (!err) {
193 vfs_ctx[vf].port_guid = guid;
194 vfs_ctx[vf].port_guid_valid = 1;
195 }
196 kfree(in);
197 return err;
198 }
199
mlx5_ib_set_vf_guid(struct ib_device * device,int vf,u32 port,u64 guid,int type)200 int mlx5_ib_set_vf_guid(struct ib_device *device, int vf, u32 port,
201 u64 guid, int type)
202 {
203 if (type == IFLA_VF_IB_NODE_GUID)
204 return set_vf_node_guid(device, vf, port, guid);
205 else if (type == IFLA_VF_IB_PORT_GUID)
206 return set_vf_port_guid(device, vf, port, guid);
207
208 return -EINVAL;
209 }
210
mlx5_ib_get_vf_guid(struct ib_device * device,int vf,u32 port,struct ifla_vf_guid * node_guid,struct ifla_vf_guid * port_guid)211 int mlx5_ib_get_vf_guid(struct ib_device *device, int vf, u32 port,
212 struct ifla_vf_guid *node_guid,
213 struct ifla_vf_guid *port_guid)
214 {
215 struct mlx5_ib_dev *dev = to_mdev(device);
216 struct mlx5_core_dev *mdev = dev->mdev;
217 struct mlx5_vf_context *vfs_ctx = mdev->priv.sriov.vfs_ctx;
218
219 node_guid->guid =
220 vfs_ctx[vf].node_guid_valid ? vfs_ctx[vf].node_guid : 0;
221 port_guid->guid =
222 vfs_ctx[vf].port_guid_valid ? vfs_ctx[vf].port_guid : 0;
223
224 return 0;
225 }
226