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1/*2 * Copyright (c) 2016, Mellanox Technologies. All rights reserved.3 *4 * This software is available to you under a choice of one of two5 * licenses. You may choose to be licensed under the terms of the GNU6 * General Public License (GPL) Version 2, available from the file7 * COPYING in the main directory of this source tree, or the8 * OpenIB.org BSD license below:9 *10 * Redistribution and use in source and binary forms, with or11 * without modification, are permitted provided that the following12 * conditions are met:13 *14 * - Redistributions of source code must retain the above15 * copyright notice, this list of conditions and the following16 * disclaimer.17 *18 * - Redistributions in binary form must reproduce the above19 * copyright notice, this list of conditions and the following20 * disclaimer in the documentation and/or other materials21 * 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 OF25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE30 * SOFTWARE.31 */32 33#include <linux/mlx5/vport.h>34#include "mlx5_ib.h"35 36static inline u32 mlx_to_net_policy(enum port_state_policy mlx_policy)37{38 switch (mlx_policy) {39 case MLX5_POLICY_DOWN:40 return IFLA_VF_LINK_STATE_DISABLE;41 case MLX5_POLICY_UP:42 return IFLA_VF_LINK_STATE_ENABLE;43 case MLX5_POLICY_FOLLOW:44 return IFLA_VF_LINK_STATE_AUTO;45 default:46 return __IFLA_VF_LINK_STATE_MAX;47 }48}49 50int mlx5_ib_get_vf_config(struct ib_device *device, int vf, u32 port,51 struct ifla_vf_info *info)52{53 struct mlx5_ib_dev *dev = to_mdev(device);54 struct mlx5_core_dev *mdev = dev->mdev;55 struct mlx5_hca_vport_context *rep;56 int err;57 58 rep = kzalloc(sizeof(*rep), GFP_KERNEL);59 if (!rep)60 return -ENOMEM;61 62 err = mlx5_query_hca_vport_context(mdev, 1, 1, vf + 1, rep);63 if (err) {64 mlx5_ib_warn(dev, "failed to query port policy for vf %d (%d)\n",65 vf, err);66 goto free;67 }68 memset(info, 0, sizeof(*info));69 info->linkstate = mlx_to_net_policy(rep->policy);70 if (info->linkstate == __IFLA_VF_LINK_STATE_MAX)71 err = -EINVAL;72 73free:74 kfree(rep);75 return err;76}77 78static inline enum port_state_policy net_to_mlx_policy(int policy)79{80 switch (policy) {81 case IFLA_VF_LINK_STATE_DISABLE:82 return MLX5_POLICY_DOWN;83 case IFLA_VF_LINK_STATE_ENABLE:84 return MLX5_POLICY_UP;85 case IFLA_VF_LINK_STATE_AUTO:86 return MLX5_POLICY_FOLLOW;87 default:88 return MLX5_POLICY_INVALID;89 }90}91 92int mlx5_ib_set_vf_link_state(struct ib_device *device, int vf,93 u32 port, int state)94{95 struct mlx5_ib_dev *dev = to_mdev(device);96 struct mlx5_core_dev *mdev = dev->mdev;97 struct mlx5_hca_vport_context *in;98 struct mlx5_vf_context *vfs_ctx = mdev->priv.sriov.vfs_ctx;99 int err;100 101 in = kzalloc(sizeof(*in), GFP_KERNEL);102 if (!in)103 return -ENOMEM;104 105 in->policy = net_to_mlx_policy(state);106 if (in->policy == MLX5_POLICY_INVALID) {107 err = -EINVAL;108 goto out;109 }110 in->field_select = MLX5_HCA_VPORT_SEL_STATE_POLICY;111 err = mlx5_core_modify_hca_vport_context(mdev, 1, 1, vf + 1, in);112 if (!err)113 vfs_ctx[vf].policy = in->policy;114 115out:116 kfree(in);117 return err;118}119 120int mlx5_ib_get_vf_stats(struct ib_device *device, int vf,121 u32 port, struct ifla_vf_stats *stats)122{123 int out_sz = MLX5_ST_SZ_BYTES(query_vport_counter_out);124 struct mlx5_core_dev *mdev;125 struct mlx5_ib_dev *dev;126 void *out;127 int err;128 129 dev = to_mdev(device);130 mdev = dev->mdev;131 132 out = kzalloc(out_sz, GFP_KERNEL);133 if (!out)134 return -ENOMEM;135 136 err = mlx5_core_query_vport_counter(mdev, true, vf, port, out);137 if (err)138 goto ex;139 140 stats->rx_packets = MLX5_GET64_PR(query_vport_counter_out, out, received_ib_unicast.packets);141 stats->tx_packets = MLX5_GET64_PR(query_vport_counter_out, out, transmitted_ib_unicast.packets);142 stats->rx_bytes = MLX5_GET64_PR(query_vport_counter_out, out, received_ib_unicast.octets);143 stats->tx_bytes = MLX5_GET64_PR(query_vport_counter_out, out, transmitted_ib_unicast.octets);144 stats->multicast = MLX5_GET64_PR(query_vport_counter_out, out, received_ib_multicast.packets);145 146ex:147 kfree(out);148 return err;149}150 151static int set_vf_node_guid(struct ib_device *device, int vf, u32 port,152 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 vfs_ctx[vf].node_guid_valid = 1;170 }171 kfree(in);172 return err;173}174 175static int set_vf_port_guid(struct ib_device *device, int vf, u32 port,176 u64 guid)177{178 struct mlx5_ib_dev *dev = to_mdev(device);179 struct mlx5_core_dev *mdev = dev->mdev;180 struct mlx5_hca_vport_context *in;181 struct mlx5_vf_context *vfs_ctx = mdev->priv.sriov.vfs_ctx;182 int err;183 184 in = kzalloc(sizeof(*in), GFP_KERNEL);185 if (!in)186 return -ENOMEM;187 188 in->field_select = MLX5_HCA_VPORT_SEL_PORT_GUID;189 in->port_guid = guid;190 err = mlx5_core_modify_hca_vport_context(mdev, 1, 1, vf + 1, in);191 if (!err) {192 vfs_ctx[vf].port_guid = guid;193 vfs_ctx[vf].port_guid_valid = 1;194 }195 kfree(in);196 return err;197}198 199int mlx5_ib_set_vf_guid(struct ib_device *device, int vf, u32 port,200 u64 guid, int type)201{202 if (type == IFLA_VF_IB_NODE_GUID)203 return set_vf_node_guid(device, vf, port, guid);204 else if (type == IFLA_VF_IB_PORT_GUID)205 return set_vf_port_guid(device, vf, port, guid);206 207 return -EINVAL;208}209 210int mlx5_ib_get_vf_guid(struct ib_device *device, int vf, u32 port,211 struct ifla_vf_guid *node_guid,212 struct ifla_vf_guid *port_guid)213{214 struct mlx5_ib_dev *dev = to_mdev(device);215 struct mlx5_core_dev *mdev = dev->mdev;216 struct mlx5_vf_context *vfs_ctx = mdev->priv.sriov.vfs_ctx;217 218 node_guid->guid =219 vfs_ctx[vf].node_guid_valid ? vfs_ctx[vf].node_guid : 0;220 port_guid->guid =221 vfs_ctx[vf].port_guid_valid ? vfs_ctx[vf].port_guid : 0;222 223 return 0;224}225