1// SPDX-License-Identifier: GPL-2.0
  2/* Copyright (C) 2019-2021, Intel Corporation. */
  3
  4#include "ice_pf_vsi_vlan_ops.h"
  5#include "ice_vf_vsi_vlan_ops.h"
  6#include "ice_sf_vsi_vlan_ops.h"
  7#include "ice_lib.h"
  8#include "ice.h"
  9
 10static int
 11op_unsupported_vlan_arg(struct ice_vsi * __always_unused vsi,
 12			struct ice_vlan * __always_unused vlan)
 13{
 14	return -EOPNOTSUPP;
 15}
 16
 17static int
 18op_unsupported_tpid_arg(struct ice_vsi *__always_unused vsi,
 19			u16 __always_unused tpid)
 20{
 21	return -EOPNOTSUPP;
 22}
 23
 24static int op_unsupported(struct ice_vsi *__always_unused vsi)
 25{
 26	return -EOPNOTSUPP;
 27}
 28
 29/* If any new ops are added to the VSI VLAN ops interface then an unsupported
 30 * implementation should be set here.
 31 */
 32static struct ice_vsi_vlan_ops ops_unsupported = {
 33	.add_vlan = op_unsupported_vlan_arg,
 34	.del_vlan = op_unsupported_vlan_arg,
 35	.ena_stripping = op_unsupported_tpid_arg,
 36	.dis_stripping = op_unsupported,
 37	.ena_insertion = op_unsupported_tpid_arg,
 38	.dis_insertion = op_unsupported,
 39	.ena_rx_filtering = op_unsupported,
 40	.dis_rx_filtering = op_unsupported,
 41	.ena_tx_filtering = op_unsupported,
 42	.dis_tx_filtering = op_unsupported,
 43	.set_port_vlan = op_unsupported_vlan_arg,
 44};
 45
 46/**
 47 * ice_vsi_init_unsupported_vlan_ops - init all VSI VLAN ops to unsupported
 48 * @vsi: VSI to initialize VSI VLAN ops to unsupported for
 49 *
 50 * By default all inner and outer VSI VLAN ops return -EOPNOTSUPP. This was done
 51 * as oppsed to leaving the ops null to prevent unexpected crashes. Instead if
 52 * an unsupported VSI VLAN op is called it will just return -EOPNOTSUPP.
 53 *
 54 */
 55static void ice_vsi_init_unsupported_vlan_ops(struct ice_vsi *vsi)
 56{
 57	vsi->outer_vlan_ops = ops_unsupported;
 58	vsi->inner_vlan_ops = ops_unsupported;
 59}
 60
 61/**
 62 * ice_vsi_init_vlan_ops - initialize type specific VSI VLAN ops
 63 * @vsi: VSI to initialize ops for
 64 *
 65 * If any VSI types are added and/or require different ops than the PF or VF VSI
 66 * then they will have to add a case here to handle that. Also, VSI type
 67 * specific files should be added in the same manner that was done for PF VSI.
 68 */
 69void ice_vsi_init_vlan_ops(struct ice_vsi *vsi)
 70{
 71	/* Initialize all VSI types to have unsupported VSI VLAN ops */
 72	ice_vsi_init_unsupported_vlan_ops(vsi);
 73
 74	switch (vsi->type) {
 75	case ICE_VSI_PF:
 76		ice_pf_vsi_init_vlan_ops(vsi);
 77		break;
 78	case ICE_VSI_VF:
 79		ice_vf_vsi_init_vlan_ops(vsi);
 80		break;
 81	case ICE_VSI_SF:
 82		ice_sf_vsi_init_vlan_ops(vsi);
 83		break;
 84	default:
 85		dev_dbg(ice_pf_to_dev(vsi->back), "%s does not support VLAN operations\n",
 86			ice_vsi_type_str(vsi->type));
 87		break;
 88	}
 89}
 90
 91/**
 92 * ice_get_compat_vsi_vlan_ops - Get VSI VLAN ops based on VLAN mode
 93 * @vsi: VSI used to get the VSI VLAN ops
 94 *
 95 * This function is meant to be used when the caller doesn't know which VLAN ops
 96 * to use (i.e. inner or outer). This allows backward compatibility for VLANs
 97 * since most of the Outer VSI VLAN functins are not supported when
 98 * the device is configured in Single VLAN Mode (SVM).
 99 */
100struct ice_vsi_vlan_ops *ice_get_compat_vsi_vlan_ops(struct ice_vsi *vsi)
101{
102	if (ice_is_dvm_ena(&vsi->back->hw))
103		return &vsi->outer_vlan_ops;
104	else
105		return &vsi->inner_vlan_ops;
106}