1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
3 * Copyright (c) 2018 Mellanox Technologies. All rights reserved.
6 #include <linux/mlx5/vport.h>
11 mlx5_ib_set_vport_rep(struct mlx5_core_dev *dev,
12 struct mlx5_eswitch_rep *rep,
15 struct mlx5_ib_dev *ibdev;
17 ibdev = mlx5_eswitch_uplink_get_proto_dev(dev->priv.eswitch, REP_IB);
21 ibdev->port[vport_index].rep = rep;
22 rep->rep_data[REP_IB].priv = ibdev;
23 write_lock(&ibdev->port[vport_index].roce.netdev_lock);
24 ibdev->port[vport_index].roce.netdev =
25 mlx5_ib_get_rep_netdev(rep->esw, rep->vport);
26 write_unlock(&ibdev->port[vport_index].roce.netdev_lock);
31 static void mlx5_ib_register_peer_vport_reps(struct mlx5_core_dev *mdev);
34 mlx5_ib_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
36 u32 num_ports = mlx5_eswitch_get_total_vports(dev);
37 const struct mlx5_ib_profile *profile;
38 struct mlx5_core_dev *peer_dev;
39 struct mlx5_ib_dev *ibdev;
44 vport_index = rep->vport_index;
46 if (mlx5_lag_is_shared_fdb(dev)) {
47 peer_dev = mlx5_lag_get_peer_mdev(dev);
48 peer_num_ports = mlx5_eswitch_get_total_vports(peer_dev);
49 if (mlx5_lag_is_master(dev)) {
50 /* Only 1 ib port is the representor for both uplinks */
51 num_ports += peer_num_ports - 1;
53 if (rep->vport == MLX5_VPORT_UPLINK)
55 vport_index += peer_num_ports;
60 if (rep->vport == MLX5_VPORT_UPLINK)
61 profile = &raw_eth_profile;
63 return mlx5_ib_set_vport_rep(dev, rep, vport_index);
65 ibdev = ib_alloc_device(mlx5_ib_dev, ib_dev);
69 ibdev->port = kcalloc(num_ports, sizeof(*ibdev->port),
77 vport_index = rep->vport_index;
78 ibdev->port[vport_index].rep = rep;
79 ibdev->port[vport_index].roce.netdev =
80 mlx5_ib_get_rep_netdev(dev->priv.eswitch, rep->vport);
82 ibdev->num_ports = num_ports;
84 ret = __mlx5_ib_add(ibdev, profile);
88 rep->rep_data[REP_IB].priv = ibdev;
89 if (mlx5_lag_is_shared_fdb(dev))
90 mlx5_ib_register_peer_vport_reps(dev);
97 ib_dealloc_device(&ibdev->ib_dev);
101 static void *mlx5_ib_rep_to_dev(struct mlx5_eswitch_rep *rep)
103 return rep->rep_data[REP_IB].priv;
107 mlx5_ib_vport_rep_unload(struct mlx5_eswitch_rep *rep)
109 struct mlx5_core_dev *mdev = mlx5_eswitch_get_core_dev(rep->esw);
110 struct mlx5_ib_dev *dev = mlx5_ib_rep_to_dev(rep);
111 int vport_index = rep->vport_index;
112 struct mlx5_ib_port *port;
117 if (mlx5_lag_is_shared_fdb(mdev) &&
118 !mlx5_lag_is_master(mdev)) {
119 struct mlx5_core_dev *peer_mdev;
121 if (rep->vport == MLX5_VPORT_UPLINK)
123 peer_mdev = mlx5_lag_get_peer_mdev(mdev);
124 vport_index += mlx5_eswitch_get_total_vports(peer_mdev);
130 port = &dev->port[vport_index];
131 write_lock(&port->roce.netdev_lock);
132 port->roce.netdev = NULL;
133 write_unlock(&port->roce.netdev_lock);
134 rep->rep_data[REP_IB].priv = NULL;
137 if (rep->vport == MLX5_VPORT_UPLINK) {
138 struct mlx5_core_dev *peer_mdev;
139 struct mlx5_eswitch *esw;
141 if (mlx5_lag_is_shared_fdb(mdev)) {
142 peer_mdev = mlx5_lag_get_peer_mdev(mdev);
143 esw = peer_mdev->priv.eswitch;
144 mlx5_eswitch_unregister_vport_reps(esw, REP_IB);
146 __mlx5_ib_remove(dev, dev->profile, MLX5_IB_STAGE_MAX);
150 static const struct mlx5_eswitch_rep_ops rep_ops = {
151 .load = mlx5_ib_vport_rep_load,
152 .unload = mlx5_ib_vport_rep_unload,
153 .get_proto_dev = mlx5_ib_rep_to_dev,
156 static void mlx5_ib_register_peer_vport_reps(struct mlx5_core_dev *mdev)
158 struct mlx5_core_dev *peer_mdev = mlx5_lag_get_peer_mdev(mdev);
159 struct mlx5_eswitch *esw;
164 esw = peer_mdev->priv.eswitch;
165 mlx5_eswitch_register_vport_reps(esw, &rep_ops, REP_IB);
168 struct net_device *mlx5_ib_get_rep_netdev(struct mlx5_eswitch *esw,
171 return mlx5_eswitch_get_proto_dev(esw, vport_num, REP_ETH);
174 struct mlx5_flow_handle *create_flow_rule_vport_sq(struct mlx5_ib_dev *dev,
175 struct mlx5_ib_sq *sq,
178 struct mlx5_eswitch *esw = dev->mdev->priv.eswitch;
179 struct mlx5_eswitch_rep *rep;
181 if (!dev->is_rep || !port)
184 if (!dev->port[port - 1].rep)
185 return ERR_PTR(-EINVAL);
187 rep = dev->port[port - 1].rep;
189 return mlx5_eswitch_add_send_to_vport_rule(esw, esw, rep, sq->base.mqp.qpn);
192 static int mlx5r_rep_probe(struct auxiliary_device *adev,
193 const struct auxiliary_device_id *id)
195 struct mlx5_adev *idev = container_of(adev, struct mlx5_adev, adev);
196 struct mlx5_core_dev *mdev = idev->mdev;
197 struct mlx5_eswitch *esw;
199 esw = mdev->priv.eswitch;
200 mlx5_eswitch_register_vport_reps(esw, &rep_ops, REP_IB);
204 static void mlx5r_rep_remove(struct auxiliary_device *adev)
206 struct mlx5_adev *idev = container_of(adev, struct mlx5_adev, adev);
207 struct mlx5_core_dev *mdev = idev->mdev;
208 struct mlx5_eswitch *esw;
210 esw = mdev->priv.eswitch;
211 mlx5_eswitch_unregister_vport_reps(esw, REP_IB);
214 static const struct auxiliary_device_id mlx5r_rep_id_table[] = {
215 { .name = MLX5_ADEV_NAME ".rdma-rep", },
219 MODULE_DEVICE_TABLE(auxiliary, mlx5r_rep_id_table);
221 static struct auxiliary_driver mlx5r_rep_driver = {
223 .probe = mlx5r_rep_probe,
224 .remove = mlx5r_rep_remove,
225 .id_table = mlx5r_rep_id_table,
228 int mlx5r_rep_init(void)
230 return auxiliary_driver_register(&mlx5r_rep_driver);
233 void mlx5r_rep_cleanup(void)
235 auxiliary_driver_unregister(&mlx5r_rep_driver);