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// 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_ib_get_uplink_ibdev(dev->priv.eswitch);
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_TOTAL_VPORTS(dev);
const struct mlx5_ib_profile *profile;
struct mlx5_ib_dev *ibdev;
int vport_index;
if (rep->vport == MLX5_VPORT_UPLINK)
profile = &uplink_rep_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) {
ib_dealloc_device(&ibdev->ib_dev);
return -ENOMEM;
}
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;
if (!__mlx5_ib_add(ibdev, profile))
return -EINVAL;
rep->rep_data[REP_IB].priv = ibdev;
return 0;
}
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 void *mlx5_ib_vport_get_proto_dev(struct mlx5_eswitch_rep *rep)
{
return mlx5_ib_rep_to_dev(rep);
}
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_vport_get_proto_dev,
};
void mlx5_ib_register_vport_reps(struct mlx5_core_dev *mdev)
{
struct mlx5_eswitch *esw = mdev->priv.eswitch;
mlx5_eswitch_register_vport_reps(esw, &rep_ops, REP_IB);
}
void mlx5_ib_unregister_vport_reps(struct mlx5_core_dev *mdev)
{
struct mlx5_eswitch *esw = mdev->priv.eswitch;
mlx5_eswitch_unregister_vport_reps(esw, REP_IB);
}
u8 mlx5_ib_eswitch_mode(struct mlx5_eswitch *esw)
{
return mlx5_eswitch_mode(esw);
}
struct mlx5_ib_dev *mlx5_ib_get_rep_ibdev(struct mlx5_eswitch *esw,
int vport_index)
{
return mlx5_eswitch_get_proto_dev(esw, vport_index, REP_IB);
}
struct net_device *mlx5_ib_get_rep_netdev(struct mlx5_eswitch *esw,
int vport_index)
{
return mlx5_eswitch_get_proto_dev(esw, vport_index, REP_ETH);
}
struct mlx5_ib_dev *mlx5_ib_get_uplink_ibdev(struct mlx5_eswitch *esw)
{
return mlx5_eswitch_uplink_get_proto_dev(esw, REP_IB);
}
struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw, int vport)
{
return mlx5_eswitch_vport_rep(esw, vport);
}
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);
}
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