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 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 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 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 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 } 120 121 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 } 151 152 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 } 175 176 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 } 199 200 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 } 210 211 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