Loading...
Note: File does not exist in v4.6.
1// SPDX-License-Identifier: GPL-2.0
2/* Copyright (C) 2019-2021, Intel Corporation. */
3
4#include "ice_vsi_vlan_ops.h"
5#include "ice_vsi_vlan_lib.h"
6#include "ice_vlan_mode.h"
7#include "ice.h"
8#include "ice_vf_vsi_vlan_ops.h"
9#include "ice_sriov.h"
10
11static int
12noop_vlan_arg(struct ice_vsi __always_unused *vsi,
13 struct ice_vlan __always_unused *vlan)
14{
15 return 0;
16}
17
18static int
19noop_vlan(struct ice_vsi __always_unused *vsi)
20{
21 return 0;
22}
23
24/**
25 * ice_vf_vsi_init_vlan_ops - Initialize default VSI VLAN ops for VF VSI
26 * @vsi: VF's VSI being configured
27 *
28 * If Double VLAN Mode (DVM) is enabled, assume that the VF supports the new
29 * VIRTCHNL_VF_VLAN_OFFLOAD_V2 capability and set up the VLAN ops accordingly.
30 * If SVM is enabled maintain the same level of VLAN support previous to
31 * VIRTCHNL_VF_VLAN_OFFLOAD_V2.
32 */
33void ice_vf_vsi_init_vlan_ops(struct ice_vsi *vsi)
34{
35 struct ice_vsi_vlan_ops *vlan_ops;
36 struct ice_pf *pf = vsi->back;
37 struct ice_vf *vf = vsi->vf;
38
39 if (WARN_ON(!vf))
40 return;
41
42 if (ice_is_dvm_ena(&pf->hw)) {
43 vlan_ops = &vsi->outer_vlan_ops;
44
45 /* outer VLAN ops regardless of port VLAN config */
46 vlan_ops->add_vlan = ice_vsi_add_vlan;
47 vlan_ops->ena_tx_filtering = ice_vsi_ena_tx_vlan_filtering;
48 vlan_ops->dis_tx_filtering = ice_vsi_dis_tx_vlan_filtering;
49
50 if (ice_vf_is_port_vlan_ena(vf)) {
51 /* setup outer VLAN ops */
52 vlan_ops->set_port_vlan = ice_vsi_set_outer_port_vlan;
53 /* all Rx traffic should be in the domain of the
54 * assigned port VLAN, so prevent disabling Rx VLAN
55 * filtering
56 */
57 vlan_ops->dis_rx_filtering = noop_vlan;
58 vlan_ops->ena_rx_filtering =
59 ice_vsi_ena_rx_vlan_filtering;
60
61 /* setup inner VLAN ops */
62 vlan_ops = &vsi->inner_vlan_ops;
63 vlan_ops->add_vlan = noop_vlan_arg;
64 vlan_ops->del_vlan = noop_vlan_arg;
65 vlan_ops->ena_stripping = ice_vsi_ena_inner_stripping;
66 vlan_ops->dis_stripping = ice_vsi_dis_inner_stripping;
67 vlan_ops->ena_insertion = ice_vsi_ena_inner_insertion;
68 vlan_ops->dis_insertion = ice_vsi_dis_inner_insertion;
69 } else {
70 vlan_ops->dis_rx_filtering =
71 ice_vsi_dis_rx_vlan_filtering;
72
73 if (!test_bit(ICE_FLAG_VF_VLAN_PRUNING, pf->flags))
74 vlan_ops->ena_rx_filtering = noop_vlan;
75 else
76 vlan_ops->ena_rx_filtering =
77 ice_vsi_ena_rx_vlan_filtering;
78
79 vlan_ops->del_vlan = ice_vsi_del_vlan;
80 vlan_ops->ena_stripping = ice_vsi_ena_outer_stripping;
81 vlan_ops->dis_stripping = ice_vsi_dis_outer_stripping;
82 vlan_ops->ena_insertion = ice_vsi_ena_outer_insertion;
83 vlan_ops->dis_insertion = ice_vsi_dis_outer_insertion;
84
85 /* setup inner VLAN ops */
86 vlan_ops = &vsi->inner_vlan_ops;
87
88 vlan_ops->ena_stripping = ice_vsi_ena_inner_stripping;
89 vlan_ops->dis_stripping = ice_vsi_dis_inner_stripping;
90 vlan_ops->ena_insertion = ice_vsi_ena_inner_insertion;
91 vlan_ops->dis_insertion = ice_vsi_dis_inner_insertion;
92 }
93 } else {
94 vlan_ops = &vsi->inner_vlan_ops;
95
96 /* inner VLAN ops regardless of port VLAN config */
97 vlan_ops->add_vlan = ice_vsi_add_vlan;
98 vlan_ops->dis_rx_filtering = ice_vsi_dis_rx_vlan_filtering;
99 vlan_ops->ena_tx_filtering = ice_vsi_ena_tx_vlan_filtering;
100 vlan_ops->dis_tx_filtering = ice_vsi_dis_tx_vlan_filtering;
101
102 if (ice_vf_is_port_vlan_ena(vf)) {
103 vlan_ops->set_port_vlan = ice_vsi_set_inner_port_vlan;
104 vlan_ops->ena_rx_filtering =
105 ice_vsi_ena_rx_vlan_filtering;
106 /* all Rx traffic should be in the domain of the
107 * assigned port VLAN, so prevent disabling Rx VLAN
108 * filtering
109 */
110 vlan_ops->dis_rx_filtering = noop_vlan;
111 } else {
112 vlan_ops->dis_rx_filtering =
113 ice_vsi_dis_rx_vlan_filtering;
114 if (!test_bit(ICE_FLAG_VF_VLAN_PRUNING, pf->flags))
115 vlan_ops->ena_rx_filtering = noop_vlan;
116 else
117 vlan_ops->ena_rx_filtering =
118 ice_vsi_ena_rx_vlan_filtering;
119
120 vlan_ops->del_vlan = ice_vsi_del_vlan;
121 vlan_ops->ena_stripping = ice_vsi_ena_inner_stripping;
122 vlan_ops->dis_stripping = ice_vsi_dis_inner_stripping;
123 vlan_ops->ena_insertion = ice_vsi_ena_inner_insertion;
124 vlan_ops->dis_insertion = ice_vsi_dis_inner_insertion;
125 }
126 }
127}
128
129/**
130 * ice_vf_vsi_cfg_dvm_legacy_vlan_mode - Config VLAN mode for old VFs in DVM
131 * @vsi: VF's VSI being configured
132 *
133 * This should only be called when Double VLAN Mode (DVM) is enabled, there
134 * is not a port VLAN enabled on this VF, and the VF negotiates
135 * VIRTCHNL_VF_OFFLOAD_VLAN.
136 *
137 * This function sets up the VF VSI's inner and outer ice_vsi_vlan_ops and also
138 * initializes software only VLAN mode (i.e. allow all VLANs). Also, use no-op
139 * implementations for any functions that may be called during the lifetime of
140 * the VF so these methods do nothing and succeed.
141 */
142void ice_vf_vsi_cfg_dvm_legacy_vlan_mode(struct ice_vsi *vsi)
143{
144 struct ice_vsi_vlan_ops *vlan_ops;
145 struct ice_vf *vf = vsi->vf;
146 struct device *dev;
147
148 if (WARN_ON(!vf))
149 return;
150
151 dev = ice_pf_to_dev(vf->pf);
152
153 if (!ice_is_dvm_ena(&vsi->back->hw) || ice_vf_is_port_vlan_ena(vf))
154 return;
155
156 vlan_ops = &vsi->outer_vlan_ops;
157
158 /* Rx VLAN filtering always disabled to allow software offloaded VLANs
159 * for VFs that only support VIRTCHNL_VF_OFFLOAD_VLAN and don't have a
160 * port VLAN configured
161 */
162 vlan_ops->dis_rx_filtering = ice_vsi_dis_rx_vlan_filtering;
163 /* Don't fail when attempting to enable Rx VLAN filtering */
164 vlan_ops->ena_rx_filtering = noop_vlan;
165
166 /* Tx VLAN filtering always disabled to allow software offloaded VLANs
167 * for VFs that only support VIRTCHNL_VF_OFFLOAD_VLAN and don't have a
168 * port VLAN configured
169 */
170 vlan_ops->dis_tx_filtering = ice_vsi_dis_tx_vlan_filtering;
171 /* Don't fail when attempting to enable Tx VLAN filtering */
172 vlan_ops->ena_tx_filtering = noop_vlan;
173
174 if (vlan_ops->dis_rx_filtering(vsi))
175 dev_dbg(dev, "Failed to disable Rx VLAN filtering for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n");
176 if (vlan_ops->dis_tx_filtering(vsi))
177 dev_dbg(dev, "Failed to disable Tx VLAN filtering for old VF without VIRTHCNL_VF_OFFLOAD_VLAN_V2 support\n");
178
179 /* All outer VLAN offloads must be disabled */
180 vlan_ops->dis_stripping = ice_vsi_dis_outer_stripping;
181 vlan_ops->dis_insertion = ice_vsi_dis_outer_insertion;
182
183 if (vlan_ops->dis_stripping(vsi))
184 dev_dbg(dev, "Failed to disable outer VLAN stripping for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n");
185
186 if (vlan_ops->dis_insertion(vsi))
187 dev_dbg(dev, "Failed to disable outer VLAN insertion for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n");
188
189 /* All inner VLAN offloads must be disabled */
190 vlan_ops = &vsi->inner_vlan_ops;
191
192 vlan_ops->dis_stripping = ice_vsi_dis_outer_stripping;
193 vlan_ops->dis_insertion = ice_vsi_dis_outer_insertion;
194
195 if (vlan_ops->dis_stripping(vsi))
196 dev_dbg(dev, "Failed to disable inner VLAN stripping for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n");
197
198 if (vlan_ops->dis_insertion(vsi))
199 dev_dbg(dev, "Failed to disable inner VLAN insertion for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n");
200}
201
202/**
203 * ice_vf_vsi_cfg_svm_legacy_vlan_mode - Config VLAN mode for old VFs in SVM
204 * @vsi: VF's VSI being configured
205 *
206 * This should only be called when Single VLAN Mode (SVM) is enabled, there is
207 * not a port VLAN enabled on this VF, and the VF negotiates
208 * VIRTCHNL_VF_OFFLOAD_VLAN.
209 *
210 * All of the normal SVM VLAN ops are identical for this case. However, by
211 * default Rx VLAN filtering should be turned off by default in this case.
212 */
213void ice_vf_vsi_cfg_svm_legacy_vlan_mode(struct ice_vsi *vsi)
214{
215 struct ice_vf *vf = vsi->vf;
216
217 if (WARN_ON(!vf))
218 return;
219
220 if (ice_is_dvm_ena(&vsi->back->hw) || ice_vf_is_port_vlan_ena(vf))
221 return;
222
223 if (vsi->inner_vlan_ops.dis_rx_filtering(vsi))
224 dev_dbg(ice_pf_to_dev(vf->pf), "Failed to disable Rx VLAN filtering for old VF with VIRTCHNL_VF_OFFLOAD_VLAN support\n");
225}