int mlx5_query_hca_vport_gid(struct mlx5_core_dev *dev, u8 port_num, u16 vport_num, u16 gid_index, union ib_gid *gid) { int in_sz = MLX5_ST_SZ_BYTES(query_hca_vport_gid_in); int out_sz = MLX5_ST_SZ_BYTES(query_hca_vport_gid_out); int is_group_manager; void *out = NULL; void *in = NULL; union ib_gid *tmp; int tbsz; int nout; int err; is_group_manager = MLX5_CAP_GEN(dev, vport_group_manager); tbsz = mlx5_get_gid_table_len(MLX5_CAP_GEN(dev, gid_table_size)); if (gid_index > tbsz && gid_index != 0xffff) return -EINVAL; if (gid_index == 0xffff) nout = tbsz; else nout = 1; out_sz += nout * sizeof(*gid); in = mlx5_vzalloc(in_sz); out = mlx5_vzalloc(out_sz); if (!in || !out) { err = -ENOMEM; goto out; } MLX5_SET(query_hca_vport_gid_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_VPORT_GID); if (vport_num) { if (is_group_manager) { MLX5_SET(query_hca_vport_gid_in, in, vport_number, vport_num); MLX5_SET(query_hca_vport_gid_in, in, other_vport, 1); } else { err = -EPERM; goto out; } } MLX5_SET(query_hca_vport_gid_in, in, gid_index, gid_index); if (MLX5_CAP_GEN(dev, num_ports) == 2) MLX5_SET(query_hca_vport_gid_in, in, port_num, port_num); err = mlx5_cmd_exec(dev, in, in_sz, out, out_sz); if (err) goto out; tmp = (union ib_gid *)MLX5_ADDR_OF(query_hca_vport_gid_out, out, gid); gid->global.subnet_prefix = tmp->global.subnet_prefix; gid->global.interface_id = tmp->global.interface_id; out: kvfree(in); kvfree(out); return err; }
static int mlx5_query_hca_port(struct ib_device *ibdev, u8 port, struct ib_port_attr *props) { struct mlx5_ib_dev *dev = to_mdev(ibdev); struct mlx5_core_dev *mdev = dev->mdev; struct mlx5_hca_vport_context *rep; int max_mtu; int oper_mtu; int err; u8 ib_link_width_oper; u8 vl_hw_cap; rep = kzalloc(sizeof(*rep), GFP_KERNEL); if (!rep) { err = -ENOMEM; goto out; } memset(props, 0, sizeof(*props)); err = mlx5_query_hca_vport_context(mdev, 0, port, 0, rep); if (err) goto out; props->lid = rep->lid; props->lmc = rep->lmc; props->sm_lid = rep->sm_lid; props->sm_sl = rep->sm_sl; props->state = rep->vport_state; props->phys_state = rep->port_physical_state; props->port_cap_flags = rep->cap_mask1; props->gid_tbl_len = mlx5_get_gid_table_len(MLX5_CAP_GEN(mdev, gid_table_size)); props->max_msg_sz = 1 << MLX5_CAP_GEN(mdev, log_max_msg); props->pkey_tbl_len = mlx5_to_sw_pkey_sz(MLX5_CAP_GEN(mdev, pkey_table_size)); props->bad_pkey_cntr = rep->pkey_violation_counter; props->qkey_viol_cntr = rep->qkey_violation_counter; props->subnet_timeout = rep->subnet_timeout; props->init_type_reply = rep->init_type_reply; err = mlx5_query_port_link_width_oper(mdev, &ib_link_width_oper, port); if (err) goto out; err = translate_active_width(ibdev, ib_link_width_oper, &props->active_width); if (err) goto out; err = mlx5_query_port_proto_oper(mdev, &props->active_speed, MLX5_PTYS_IB, port); if (err) goto out; mlx5_query_port_max_mtu(mdev, &max_mtu, port); props->max_mtu = mlx5_mtu_to_ib_mtu(max_mtu); mlx5_query_port_oper_mtu(mdev, &oper_mtu, port); props->active_mtu = mlx5_mtu_to_ib_mtu(oper_mtu); err = mlx5_query_port_vl_hw_cap(mdev, &vl_hw_cap, port); if (err) goto out; err = translate_max_vl_num(ibdev, vl_hw_cap, &props->max_vl_num); out: kfree(rep); return err; }