1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
* Copyright (c) 2018 Mellanox Technologies. All rights reserved.
*/
#include <linux/mlx5/vport.h>
#include "ib_rep.h"
#include "srq.h"
static int
mlx5_ib_set_vport_rep(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
{
struct mlx5_ib_dev *ibdev;
int vport_index;
ibdev = mlx5_eswitch_uplink_get_proto_dev(dev->priv.eswitch, REP_IB);
vport_index = rep->vport_index;
ibdev->port[vport_index].rep = rep;
rep->rep_data[REP_IB].priv = ibdev;
write_lock(&ibdev->port[vport_index].roce.netdev_lock);
ibdev->port[vport_index].roce.netdev =
mlx5_ib_get_rep_netdev(dev->priv.eswitch, rep->vport);
write_unlock(&ibdev->port[vport_index].roce.netdev_lock);
return 0;
}
static int
mlx5_ib_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
{
int num_ports = mlx5_eswitch_get_total_vports(dev);
const struct mlx5_ib_profile *profile;
struct mlx5_ib_dev *ibdev;
int vport_index;
int ret;
if (rep->vport == MLX5_VPORT_UPLINK)
profile = &raw_eth_profile;
else
return mlx5_ib_set_vport_rep(dev, rep);
ibdev = ib_alloc_device(mlx5_ib_dev, ib_dev);
if (!ibdev)
return -ENOMEM;
ibdev->port = kcalloc(num_ports, sizeof(*ibdev->port),
GFP_KERNEL);
if (!ibdev->port) {
ret = -ENOMEM;
goto fail_port;
}
ibdev->is_rep = true;
vport_index = rep->vport_index;
ibdev->port[vport_index].rep = rep;
ibdev->port[vport_index].roce.netdev =
mlx5_ib_get_rep_netdev(dev->priv.eswitch, rep->vport);
ibdev->mdev = dev;
ibdev->num_ports = num_ports;
ret = __mlx5_ib_add(ibdev, profile);
if (ret)
goto fail_add;
rep->rep_data[REP_IB].priv = ibdev;
return 0;
fail_add:
kfree(ibdev->port);
fail_port:
ib_dealloc_device(&ibdev->ib_dev);
return ret;
}
static void *mlx5_ib_rep_to_dev(struct mlx5_eswitch_rep *rep)
{
return rep->rep_data[REP_IB].priv;
}
static void
mlx5_ib_vport_rep_unload(struct mlx5_eswitch_rep *rep)
{
struct mlx5_ib_dev *dev = mlx5_ib_rep_to_dev(rep);
struct mlx5_ib_port *port;
port = &dev->port[rep->vport_index];
write_lock(&port->roce.netdev_lock);
port->roce.netdev = NULL;
write_unlock(&port->roce.netdev_lock);
rep->rep_data[REP_IB].priv = NULL;
port->rep = NULL;
if (rep->vport == MLX5_VPORT_UPLINK)
__mlx5_ib_remove(dev, dev->profile, MLX5_IB_STAGE_MAX);
}
static const struct mlx5_eswitch_rep_ops rep_ops = {
.load = mlx5_ib_vport_rep_load,
.unload = mlx5_ib_vport_rep_unload,
.get_proto_dev = mlx5_ib_rep_to_dev,
};
struct net_device *mlx5_ib_get_rep_netdev(struct mlx5_eswitch *esw,
u16 vport_num)
{
return mlx5_eswitch_get_proto_dev(esw, vport_num, REP_ETH);
}
struct mlx5_flow_handle *create_flow_rule_vport_sq(struct mlx5_ib_dev *dev,
struct mlx5_ib_sq *sq,
u16 port)
{
struct mlx5_eswitch *esw = dev->mdev->priv.eswitch;
struct mlx5_eswitch_rep *rep;
if (!dev->is_rep || !port)
return NULL;
if (!dev->port[port - 1].rep)
return ERR_PTR(-EINVAL);
rep = dev->port[port - 1].rep;
return mlx5_eswitch_add_send_to_vport_rule(esw, rep->vport,
sq->base.mqp.qpn);
}
static int mlx5r_rep_probe(struct auxiliary_device *adev,
const struct auxiliary_device_id *id)
{
struct mlx5_adev *idev = container_of(adev, struct mlx5_adev, adev);
struct mlx5_core_dev *mdev = idev->mdev;
struct mlx5_eswitch *esw;
esw = mdev->priv.eswitch;
mlx5_eswitch_register_vport_reps(esw, &rep_ops, REP_IB);
return 0;
}
static void mlx5r_rep_remove(struct auxiliary_device *adev)
{
struct mlx5_adev *idev = container_of(adev, struct mlx5_adev, adev);
struct mlx5_core_dev *mdev = idev->mdev;
struct mlx5_eswitch *esw;
esw = mdev->priv.eswitch;
mlx5_eswitch_unregister_vport_reps(esw, REP_IB);
}
static const struct auxiliary_device_id mlx5r_rep_id_table[] = {
{ .name = MLX5_ADEV_NAME ".rdma-rep", },
{},
};
MODULE_DEVICE_TABLE(auxiliary, mlx5r_rep_id_table);
static struct auxiliary_driver mlx5r_rep_driver = {
.name = "rep",
.probe = mlx5r_rep_probe,
.remove = mlx5r_rep_remove,
.id_table = mlx5r_rep_id_table,
};
int mlx5r_rep_init(void)
{
return auxiliary_driver_register(&mlx5r_rep_driver);
}
void mlx5r_rep_cleanup(void)
{
auxiliary_driver_unregister(&mlx5r_rep_driver);
}
|
