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 | |
11 | static int |
12 | noop_vlan_arg(struct ice_vsi __always_unused *vsi, |
13 | struct ice_vlan __always_unused *vlan) |
14 | { |
15 | return 0; |
16 | } |
17 | |
18 | static int |
19 | noop_vlan(struct ice_vsi __always_unused *vsi) |
20 | { |
21 | return 0; |
22 | } |
23 | |
24 | static void ice_port_vlan_on(struct ice_vsi *vsi) |
25 | { |
26 | struct ice_vsi_vlan_ops *vlan_ops; |
27 | struct ice_pf *pf = vsi->back; |
28 | |
29 | /* setup inner VLAN ops */ |
30 | vlan_ops = &vsi->inner_vlan_ops; |
31 | |
32 | if (ice_is_dvm_ena(hw: &pf->hw)) { |
33 | vlan_ops->add_vlan = noop_vlan_arg; |
34 | vlan_ops->del_vlan = noop_vlan_arg; |
35 | vlan_ops->ena_stripping = ice_vsi_ena_inner_stripping; |
36 | vlan_ops->dis_stripping = ice_vsi_dis_inner_stripping; |
37 | vlan_ops->ena_insertion = ice_vsi_ena_inner_insertion; |
38 | vlan_ops->dis_insertion = ice_vsi_dis_inner_insertion; |
39 | |
40 | /* setup outer VLAN ops */ |
41 | vlan_ops = &vsi->outer_vlan_ops; |
42 | vlan_ops->set_port_vlan = ice_vsi_set_outer_port_vlan; |
43 | vlan_ops->clear_port_vlan = ice_vsi_clear_outer_port_vlan; |
44 | } else { |
45 | vlan_ops->set_port_vlan = ice_vsi_set_inner_port_vlan; |
46 | vlan_ops->clear_port_vlan = ice_vsi_clear_inner_port_vlan; |
47 | } |
48 | |
49 | /* all Rx traffic should be in the domain of the assigned port VLAN, |
50 | * so prevent disabling Rx VLAN filtering |
51 | */ |
52 | vlan_ops->dis_rx_filtering = noop_vlan; |
53 | |
54 | vlan_ops->ena_rx_filtering = ice_vsi_ena_rx_vlan_filtering; |
55 | } |
56 | |
57 | static void ice_port_vlan_off(struct ice_vsi *vsi) |
58 | { |
59 | struct ice_vsi_vlan_ops *vlan_ops; |
60 | struct ice_pf *pf = vsi->back; |
61 | |
62 | /* setup inner VLAN ops */ |
63 | vlan_ops = &vsi->inner_vlan_ops; |
64 | |
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 | |
70 | if (ice_is_dvm_ena(hw: &pf->hw)) { |
71 | vlan_ops = &vsi->outer_vlan_ops; |
72 | |
73 | vlan_ops->del_vlan = ice_vsi_del_vlan; |
74 | vlan_ops->ena_stripping = ice_vsi_ena_outer_stripping; |
75 | vlan_ops->dis_stripping = ice_vsi_dis_outer_stripping; |
76 | vlan_ops->ena_insertion = ice_vsi_ena_outer_insertion; |
77 | vlan_ops->dis_insertion = ice_vsi_dis_outer_insertion; |
78 | } else { |
79 | vlan_ops->del_vlan = ice_vsi_del_vlan; |
80 | } |
81 | |
82 | vlan_ops->dis_rx_filtering = ice_vsi_dis_rx_vlan_filtering; |
83 | |
84 | if (!test_bit(ICE_FLAG_VF_VLAN_PRUNING, pf->flags)) |
85 | vlan_ops->ena_rx_filtering = noop_vlan; |
86 | else |
87 | vlan_ops->ena_rx_filtering = |
88 | ice_vsi_ena_rx_vlan_filtering; |
89 | } |
90 | |
91 | /** |
92 | * ice_vf_vsi_enable_port_vlan - Set VSI VLAN ops to support port VLAN |
93 | * @vsi: VF's VSI being configured |
94 | * |
95 | * The function won't create port VLAN, it only allows to create port VLAN |
96 | * using VLAN ops on the VF VSI. |
97 | */ |
98 | void ice_vf_vsi_enable_port_vlan(struct ice_vsi *vsi) |
99 | { |
100 | if (WARN_ON_ONCE(!vsi->vf)) |
101 | return; |
102 | |
103 | ice_port_vlan_on(vsi); |
104 | } |
105 | |
106 | /** |
107 | * ice_vf_vsi_disable_port_vlan - Clear VSI support for creating port VLAN |
108 | * @vsi: VF's VSI being configured |
109 | * |
110 | * The function should be called after removing port VLAN on VSI |
111 | * (using VLAN ops) |
112 | */ |
113 | void ice_vf_vsi_disable_port_vlan(struct ice_vsi *vsi) |
114 | { |
115 | if (WARN_ON_ONCE(!vsi->vf)) |
116 | return; |
117 | |
118 | ice_port_vlan_off(vsi); |
119 | } |
120 | |
121 | /** |
122 | * ice_vf_vsi_init_vlan_ops - Initialize default VSI VLAN ops for VF VSI |
123 | * @vsi: VF's VSI being configured |
124 | * |
125 | * If Double VLAN Mode (DVM) is enabled, assume that the VF supports the new |
126 | * VIRTCHNL_VF_VLAN_OFFLOAD_V2 capability and set up the VLAN ops accordingly. |
127 | * If SVM is enabled maintain the same level of VLAN support previous to |
128 | * VIRTCHNL_VF_VLAN_OFFLOAD_V2. |
129 | */ |
130 | void ice_vf_vsi_init_vlan_ops(struct ice_vsi *vsi) |
131 | { |
132 | struct ice_vsi_vlan_ops *vlan_ops; |
133 | struct ice_pf *pf = vsi->back; |
134 | struct ice_vf *vf = vsi->vf; |
135 | |
136 | if (WARN_ON(!vf)) |
137 | return; |
138 | |
139 | if (ice_vf_is_port_vlan_ena(vf)) |
140 | ice_port_vlan_on(vsi); |
141 | else |
142 | ice_port_vlan_off(vsi); |
143 | |
144 | vlan_ops = ice_is_dvm_ena(hw: &pf->hw) ? |
145 | &vsi->outer_vlan_ops : &vsi->inner_vlan_ops; |
146 | |
147 | vlan_ops->add_vlan = ice_vsi_add_vlan; |
148 | vlan_ops->ena_tx_filtering = ice_vsi_ena_tx_vlan_filtering; |
149 | vlan_ops->dis_tx_filtering = ice_vsi_dis_tx_vlan_filtering; |
150 | } |
151 | |
152 | /** |
153 | * ice_vf_vsi_cfg_dvm_legacy_vlan_mode - Config VLAN mode for old VFs in DVM |
154 | * @vsi: VF's VSI being configured |
155 | * |
156 | * This should only be called when Double VLAN Mode (DVM) is enabled, there |
157 | * is not a port VLAN enabled on this VF, and the VF negotiates |
158 | * VIRTCHNL_VF_OFFLOAD_VLAN. |
159 | * |
160 | * This function sets up the VF VSI's inner and outer ice_vsi_vlan_ops and also |
161 | * initializes software only VLAN mode (i.e. allow all VLANs). Also, use no-op |
162 | * implementations for any functions that may be called during the lifetime of |
163 | * the VF so these methods do nothing and succeed. |
164 | */ |
165 | void ice_vf_vsi_cfg_dvm_legacy_vlan_mode(struct ice_vsi *vsi) |
166 | { |
167 | struct ice_vsi_vlan_ops *vlan_ops; |
168 | struct ice_vf *vf = vsi->vf; |
169 | struct device *dev; |
170 | |
171 | if (WARN_ON(!vf)) |
172 | return; |
173 | |
174 | dev = ice_pf_to_dev(vf->pf); |
175 | |
176 | if (!ice_is_dvm_ena(hw: &vsi->back->hw) || ice_vf_is_port_vlan_ena(vf)) |
177 | return; |
178 | |
179 | vlan_ops = &vsi->outer_vlan_ops; |
180 | |
181 | /* Rx VLAN filtering always disabled to allow software offloaded VLANs |
182 | * for VFs that only support VIRTCHNL_VF_OFFLOAD_VLAN and don't have a |
183 | * port VLAN configured |
184 | */ |
185 | vlan_ops->dis_rx_filtering = ice_vsi_dis_rx_vlan_filtering; |
186 | /* Don't fail when attempting to enable Rx VLAN filtering */ |
187 | vlan_ops->ena_rx_filtering = noop_vlan; |
188 | |
189 | /* Tx VLAN filtering always disabled to allow software offloaded VLANs |
190 | * for VFs that only support VIRTCHNL_VF_OFFLOAD_VLAN and don't have a |
191 | * port VLAN configured |
192 | */ |
193 | vlan_ops->dis_tx_filtering = ice_vsi_dis_tx_vlan_filtering; |
194 | /* Don't fail when attempting to enable Tx VLAN filtering */ |
195 | vlan_ops->ena_tx_filtering = noop_vlan; |
196 | |
197 | if (vlan_ops->dis_rx_filtering(vsi)) |
198 | dev_dbg(dev, "Failed to disable Rx VLAN filtering for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n" ); |
199 | if (vlan_ops->dis_tx_filtering(vsi)) |
200 | dev_dbg(dev, "Failed to disable Tx VLAN filtering for old VF without VIRTHCNL_VF_OFFLOAD_VLAN_V2 support\n" ); |
201 | |
202 | /* All outer VLAN offloads must be disabled */ |
203 | vlan_ops->dis_stripping = ice_vsi_dis_outer_stripping; |
204 | vlan_ops->dis_insertion = ice_vsi_dis_outer_insertion; |
205 | |
206 | if (vlan_ops->dis_stripping(vsi)) |
207 | dev_dbg(dev, "Failed to disable outer VLAN stripping for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n" ); |
208 | |
209 | if (vlan_ops->dis_insertion(vsi)) |
210 | dev_dbg(dev, "Failed to disable outer VLAN insertion for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n" ); |
211 | |
212 | /* All inner VLAN offloads must be disabled */ |
213 | vlan_ops = &vsi->inner_vlan_ops; |
214 | |
215 | vlan_ops->dis_stripping = ice_vsi_dis_outer_stripping; |
216 | vlan_ops->dis_insertion = ice_vsi_dis_outer_insertion; |
217 | |
218 | if (vlan_ops->dis_stripping(vsi)) |
219 | dev_dbg(dev, "Failed to disable inner VLAN stripping for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n" ); |
220 | |
221 | if (vlan_ops->dis_insertion(vsi)) |
222 | dev_dbg(dev, "Failed to disable inner VLAN insertion for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n" ); |
223 | } |
224 | |
225 | /** |
226 | * ice_vf_vsi_cfg_svm_legacy_vlan_mode - Config VLAN mode for old VFs in SVM |
227 | * @vsi: VF's VSI being configured |
228 | * |
229 | * This should only be called when Single VLAN Mode (SVM) is enabled, there is |
230 | * not a port VLAN enabled on this VF, and the VF negotiates |
231 | * VIRTCHNL_VF_OFFLOAD_VLAN. |
232 | * |
233 | * All of the normal SVM VLAN ops are identical for this case. However, by |
234 | * default Rx VLAN filtering should be turned off by default in this case. |
235 | */ |
236 | void ice_vf_vsi_cfg_svm_legacy_vlan_mode(struct ice_vsi *vsi) |
237 | { |
238 | struct ice_vf *vf = vsi->vf; |
239 | |
240 | if (WARN_ON(!vf)) |
241 | return; |
242 | |
243 | if (ice_is_dvm_ena(hw: &vsi->back->hw) || ice_vf_is_port_vlan_ena(vf)) |
244 | return; |
245 | |
246 | if (vsi->inner_vlan_ops.dis_rx_filtering(vsi)) |
247 | dev_dbg(ice_pf_to_dev(vf->pf), "Failed to disable Rx VLAN filtering for old VF with VIRTCHNL_VF_OFFLOAD_VLAN support\n" ); |
248 | } |
249 | |