1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB 2 /* 3 * Copyright (c) 2018 Mellanox Technologies. All rights reserved. 4 */ 5 6 #include <linux/mlx5/vport.h> 7 #include "ib_rep.h" 8 #include "srq.h" 9 10 static int 11 mlx5_ib_set_vport_rep(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep) 12 { 13 struct mlx5_ib_dev *ibdev; 14 int vport_index; 15 16 ibdev = mlx5_ib_get_uplink_ibdev(dev->priv.eswitch); 17 vport_index = rep->vport_index; 18 19 ibdev->port[vport_index].rep = rep; 20 rep->rep_data[REP_IB].priv = ibdev; 21 write_lock(&ibdev->port[vport_index].roce.netdev_lock); 22 ibdev->port[vport_index].roce.netdev = 23 mlx5_ib_get_rep_netdev(dev->priv.eswitch, rep->vport); 24 write_unlock(&ibdev->port[vport_index].roce.netdev_lock); 25 26 return 0; 27 } 28 29 static int 30 mlx5_ib_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep) 31 { 32 int num_ports = mlx5_eswitch_get_total_vports(dev); 33 const struct mlx5_ib_profile *profile; 34 struct mlx5_ib_dev *ibdev; 35 int vport_index; 36 37 if (rep->vport == MLX5_VPORT_UPLINK) 38 profile = &uplink_rep_profile; 39 else 40 return mlx5_ib_set_vport_rep(dev, rep); 41 42 ibdev = ib_alloc_device(mlx5_ib_dev, ib_dev); 43 if (!ibdev) 44 return -ENOMEM; 45 46 ibdev->port = kcalloc(num_ports, sizeof(*ibdev->port), 47 GFP_KERNEL); 48 if (!ibdev->port) { 49 ib_dealloc_device(&ibdev->ib_dev); 50 return -ENOMEM; 51 } 52 53 ibdev->is_rep = true; 54 vport_index = rep->vport_index; 55 ibdev->port[vport_index].rep = rep; 56 ibdev->port[vport_index].roce.netdev = 57 mlx5_ib_get_rep_netdev(dev->priv.eswitch, rep->vport); 58 ibdev->mdev = dev; 59 ibdev->num_ports = num_ports; 60 61 if (!__mlx5_ib_add(ibdev, profile)) 62 return -EINVAL; 63 64 rep->rep_data[REP_IB].priv = ibdev; 65 66 return 0; 67 } 68 69 static void 70 mlx5_ib_vport_rep_unload(struct mlx5_eswitch_rep *rep) 71 { 72 struct mlx5_ib_dev *dev = mlx5_ib_rep_to_dev(rep); 73 struct mlx5_ib_port *port; 74 75 port = &dev->port[rep->vport_index]; 76 write_lock(&port->roce.netdev_lock); 77 port->roce.netdev = NULL; 78 write_unlock(&port->roce.netdev_lock); 79 rep->rep_data[REP_IB].priv = NULL; 80 port->rep = NULL; 81 82 if (rep->vport == MLX5_VPORT_UPLINK) 83 __mlx5_ib_remove(dev, dev->profile, MLX5_IB_STAGE_MAX); 84 } 85 86 static void *mlx5_ib_vport_get_proto_dev(struct mlx5_eswitch_rep *rep) 87 { 88 return mlx5_ib_rep_to_dev(rep); 89 } 90 91 static const struct mlx5_eswitch_rep_ops rep_ops = { 92 .load = mlx5_ib_vport_rep_load, 93 .unload = mlx5_ib_vport_rep_unload, 94 .get_proto_dev = mlx5_ib_vport_get_proto_dev, 95 }; 96 97 void mlx5_ib_register_vport_reps(struct mlx5_core_dev *mdev) 98 { 99 struct mlx5_eswitch *esw = mdev->priv.eswitch; 100 101 mlx5_eswitch_register_vport_reps(esw, &rep_ops, REP_IB); 102 } 103 104 void mlx5_ib_unregister_vport_reps(struct mlx5_core_dev *mdev) 105 { 106 struct mlx5_eswitch *esw = mdev->priv.eswitch; 107 108 mlx5_eswitch_unregister_vport_reps(esw, REP_IB); 109 } 110 111 u8 mlx5_ib_eswitch_mode(struct mlx5_eswitch *esw) 112 { 113 return mlx5_eswitch_mode(esw); 114 } 115 116 struct mlx5_ib_dev *mlx5_ib_get_rep_ibdev(struct mlx5_eswitch *esw, 117 u16 vport_num) 118 { 119 return mlx5_eswitch_get_proto_dev(esw, vport_num, REP_IB); 120 } 121 122 struct net_device *mlx5_ib_get_rep_netdev(struct mlx5_eswitch *esw, 123 u16 vport_num) 124 { 125 return mlx5_eswitch_get_proto_dev(esw, vport_num, REP_ETH); 126 } 127 128 struct mlx5_ib_dev *mlx5_ib_get_uplink_ibdev(struct mlx5_eswitch *esw) 129 { 130 return mlx5_eswitch_uplink_get_proto_dev(esw, REP_IB); 131 } 132 133 struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw, 134 u16 vport_num) 135 { 136 return mlx5_eswitch_vport_rep(esw, vport_num); 137 } 138 139 struct mlx5_flow_handle *create_flow_rule_vport_sq(struct mlx5_ib_dev *dev, 140 struct mlx5_ib_sq *sq, 141 u16 port) 142 { 143 struct mlx5_eswitch *esw = dev->mdev->priv.eswitch; 144 struct mlx5_eswitch_rep *rep; 145 146 if (!dev->is_rep || !port) 147 return NULL; 148 149 if (!dev->port[port - 1].rep) 150 return ERR_PTR(-EINVAL); 151 152 rep = dev->port[port - 1].rep; 153 154 return mlx5_eswitch_add_send_to_vport_rule(esw, rep->vport, 155 sq->base.mqp.qpn); 156 } 157