ib_virt.c (6373B)
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/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}