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