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 | if (ice_is_dvm_ena(hw: &pf->hw)) { |
30 | vlan_ops = &vsi->outer_vlan_ops; |
31 | |
32 | /* setup outer VLAN ops */ |
33 | vlan_ops->set_port_vlan = ice_vsi_set_outer_port_vlan; |
34 | vlan_ops->clear_port_vlan = ice_vsi_clear_outer_port_vlan; |
35 | vlan_ops->clear_port_vlan = ice_vsi_clear_outer_port_vlan; |
36 | |
37 | /* setup inner VLAN ops */ |
38 | vlan_ops = &vsi->inner_vlan_ops; |
39 | vlan_ops->add_vlan = noop_vlan_arg; |
40 | vlan_ops->del_vlan = noop_vlan_arg; |
41 | vlan_ops->ena_stripping = ice_vsi_ena_inner_stripping; |
42 | vlan_ops->dis_stripping = ice_vsi_dis_inner_stripping; |
43 | vlan_ops->ena_insertion = ice_vsi_ena_inner_insertion; |
44 | vlan_ops->dis_insertion = ice_vsi_dis_inner_insertion; |
45 | } else { |
46 | vlan_ops = &vsi->inner_vlan_ops; |
47 | |
48 | vlan_ops->set_port_vlan = ice_vsi_set_inner_port_vlan; |
49 | vlan_ops->clear_port_vlan = ice_vsi_clear_inner_port_vlan; |
50 | vlan_ops->clear_port_vlan = ice_vsi_clear_inner_port_vlan; |
51 | } |
52 | vlan_ops->ena_rx_filtering = ice_vsi_ena_rx_vlan_filtering; |
53 | } |
54 | |
55 | static void ice_port_vlan_off(struct ice_vsi *vsi) |
56 | { |
57 | struct ice_vsi_vlan_ops *vlan_ops; |
58 | struct ice_pf *pf = vsi->back; |
59 | |
60 | /* setup inner VLAN ops */ |
61 | vlan_ops = &vsi->inner_vlan_ops; |
62 | |
63 | vlan_ops->ena_stripping = ice_vsi_ena_inner_stripping; |
64 | vlan_ops->dis_stripping = ice_vsi_dis_inner_stripping; |
65 | vlan_ops->ena_insertion = ice_vsi_ena_inner_insertion; |
66 | vlan_ops->dis_insertion = ice_vsi_dis_inner_insertion; |
67 | |
68 | if (ice_is_dvm_ena(hw: &pf->hw)) { |
69 | vlan_ops = &vsi->outer_vlan_ops; |
70 | |
71 | vlan_ops->del_vlan = ice_vsi_del_vlan; |
72 | vlan_ops->ena_stripping = ice_vsi_ena_outer_stripping; |
73 | vlan_ops->dis_stripping = ice_vsi_dis_outer_stripping; |
74 | vlan_ops->ena_insertion = ice_vsi_ena_outer_insertion; |
75 | vlan_ops->dis_insertion = ice_vsi_dis_outer_insertion; |
76 | } else { |
77 | vlan_ops->del_vlan = ice_vsi_del_vlan; |
78 | } |
79 | |
80 | if (!test_bit(ICE_FLAG_VF_VLAN_PRUNING, pf->flags)) |
81 | vlan_ops->ena_rx_filtering = noop_vlan; |
82 | else |
83 | vlan_ops->ena_rx_filtering = |
84 | ice_vsi_ena_rx_vlan_filtering; |
85 | } |
86 | |
87 | /** |
88 | * ice_vf_vsi_enable_port_vlan - Set VSI VLAN ops to support port VLAN |
89 | * @vsi: VF's VSI being configured |
90 | * |
91 | * The function won't create port VLAN, it only allows to create port VLAN |
92 | * using VLAN ops on the VF VSI. |
93 | */ |
94 | void ice_vf_vsi_enable_port_vlan(struct ice_vsi *vsi) |
95 | { |
96 | if (WARN_ON_ONCE(!vsi->vf)) |
97 | return; |
98 | |
99 | ice_port_vlan_on(vsi); |
100 | } |
101 | |
102 | /** |
103 | * ice_vf_vsi_disable_port_vlan - Clear VSI support for creating port VLAN |
104 | * @vsi: VF's VSI being configured |
105 | * |
106 | * The function should be called after removing port VLAN on VSI |
107 | * (using VLAN ops) |
108 | */ |
109 | void ice_vf_vsi_disable_port_vlan(struct ice_vsi *vsi) |
110 | { |
111 | if (WARN_ON_ONCE(!vsi->vf)) |
112 | return; |
113 | |
114 | ice_port_vlan_off(vsi); |
115 | } |
116 | |
117 | /** |
118 | * ice_vf_vsi_init_vlan_ops - Initialize default VSI VLAN ops for VF VSI |
119 | * @vsi: VF's VSI being configured |
120 | * |
121 | * If Double VLAN Mode (DVM) is enabled, assume that the VF supports the new |
122 | * VIRTCHNL_VF_VLAN_OFFLOAD_V2 capability and set up the VLAN ops accordingly. |
123 | * If SVM is enabled maintain the same level of VLAN support previous to |
124 | * VIRTCHNL_VF_VLAN_OFFLOAD_V2. |
125 | */ |
126 | void ice_vf_vsi_init_vlan_ops(struct ice_vsi *vsi) |
127 | { |
128 | struct ice_vsi_vlan_ops *vlan_ops; |
129 | struct ice_pf *pf = vsi->back; |
130 | struct ice_vf *vf = vsi->vf; |
131 | |
132 | if (WARN_ON(!vf)) |
133 | return; |
134 | |
135 | if (ice_vf_is_port_vlan_ena(vf)) |
136 | ice_port_vlan_on(vsi); |
137 | else |
138 | ice_port_vlan_off(vsi); |
139 | |
140 | vlan_ops = ice_is_dvm_ena(hw: &pf->hw) ? |
141 | &vsi->outer_vlan_ops : &vsi->inner_vlan_ops; |
142 | |
143 | vlan_ops->add_vlan = ice_vsi_add_vlan; |
144 | vlan_ops->dis_rx_filtering = ice_vsi_dis_rx_vlan_filtering; |
145 | vlan_ops->ena_tx_filtering = ice_vsi_ena_tx_vlan_filtering; |
146 | vlan_ops->dis_tx_filtering = ice_vsi_dis_tx_vlan_filtering; |
147 | } |
148 | |
149 | /** |
150 | * ice_vf_vsi_cfg_dvm_legacy_vlan_mode - Config VLAN mode for old VFs in DVM |
151 | * @vsi: VF's VSI being configured |
152 | * |
153 | * This should only be called when Double VLAN Mode (DVM) is enabled, there |
154 | * is not a port VLAN enabled on this VF, and the VF negotiates |
155 | * VIRTCHNL_VF_OFFLOAD_VLAN. |
156 | * |
157 | * This function sets up the VF VSI's inner and outer ice_vsi_vlan_ops and also |
158 | * initializes software only VLAN mode (i.e. allow all VLANs). Also, use no-op |
159 | * implementations for any functions that may be called during the lifetime of |
160 | * the VF so these methods do nothing and succeed. |
161 | */ |
162 | void ice_vf_vsi_cfg_dvm_legacy_vlan_mode(struct ice_vsi *vsi) |
163 | { |
164 | struct ice_vsi_vlan_ops *vlan_ops; |
165 | struct ice_vf *vf = vsi->vf; |
166 | struct device *dev; |
167 | |
168 | if (WARN_ON(!vf)) |
169 | return; |
170 | |
171 | dev = ice_pf_to_dev(vf->pf); |
172 | |
173 | if (!ice_is_dvm_ena(hw: &vsi->back->hw) || ice_vf_is_port_vlan_ena(vf)) |
174 | return; |
175 | |
176 | vlan_ops = &vsi->outer_vlan_ops; |
177 | |
178 | /* Rx VLAN filtering always disabled to allow software offloaded VLANs |
179 | * for VFs that only support VIRTCHNL_VF_OFFLOAD_VLAN and don't have a |
180 | * port VLAN configured |
181 | */ |
182 | vlan_ops->dis_rx_filtering = ice_vsi_dis_rx_vlan_filtering; |
183 | /* Don't fail when attempting to enable Rx VLAN filtering */ |
184 | vlan_ops->ena_rx_filtering = noop_vlan; |
185 | |
186 | /* Tx VLAN filtering always disabled to allow software offloaded VLANs |
187 | * for VFs that only support VIRTCHNL_VF_OFFLOAD_VLAN and don't have a |
188 | * port VLAN configured |
189 | */ |
190 | vlan_ops->dis_tx_filtering = ice_vsi_dis_tx_vlan_filtering; |
191 | /* Don't fail when attempting to enable Tx VLAN filtering */ |
192 | vlan_ops->ena_tx_filtering = noop_vlan; |
193 | |
194 | if (vlan_ops->dis_rx_filtering(vsi)) |
195 | dev_dbg(dev, "Failed to disable Rx VLAN filtering for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n" ); |
196 | if (vlan_ops->dis_tx_filtering(vsi)) |
197 | dev_dbg(dev, "Failed to disable Tx VLAN filtering for old VF without VIRTHCNL_VF_OFFLOAD_VLAN_V2 support\n" ); |
198 | |
199 | /* All outer VLAN offloads must be disabled */ |
200 | vlan_ops->dis_stripping = ice_vsi_dis_outer_stripping; |
201 | vlan_ops->dis_insertion = ice_vsi_dis_outer_insertion; |
202 | |
203 | if (vlan_ops->dis_stripping(vsi)) |
204 | dev_dbg(dev, "Failed to disable outer VLAN stripping for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n" ); |
205 | |
206 | if (vlan_ops->dis_insertion(vsi)) |
207 | dev_dbg(dev, "Failed to disable outer VLAN insertion for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n" ); |
208 | |
209 | /* All inner VLAN offloads must be disabled */ |
210 | vlan_ops = &vsi->inner_vlan_ops; |
211 | |
212 | vlan_ops->dis_stripping = ice_vsi_dis_outer_stripping; |
213 | vlan_ops->dis_insertion = ice_vsi_dis_outer_insertion; |
214 | |
215 | if (vlan_ops->dis_stripping(vsi)) |
216 | dev_dbg(dev, "Failed to disable inner VLAN stripping for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n" ); |
217 | |
218 | if (vlan_ops->dis_insertion(vsi)) |
219 | dev_dbg(dev, "Failed to disable inner VLAN insertion for old VF without VIRTCHNL_VF_OFFLOAD_VLAN_V2 support\n" ); |
220 | } |
221 | |
222 | /** |
223 | * ice_vf_vsi_cfg_svm_legacy_vlan_mode - Config VLAN mode for old VFs in SVM |
224 | * @vsi: VF's VSI being configured |
225 | * |
226 | * This should only be called when Single VLAN Mode (SVM) is enabled, there is |
227 | * not a port VLAN enabled on this VF, and the VF negotiates |
228 | * VIRTCHNL_VF_OFFLOAD_VLAN. |
229 | * |
230 | * All of the normal SVM VLAN ops are identical for this case. However, by |
231 | * default Rx VLAN filtering should be turned off by default in this case. |
232 | */ |
233 | void ice_vf_vsi_cfg_svm_legacy_vlan_mode(struct ice_vsi *vsi) |
234 | { |
235 | struct ice_vf *vf = vsi->vf; |
236 | |
237 | if (WARN_ON(!vf)) |
238 | return; |
239 | |
240 | if (ice_is_dvm_ena(hw: &vsi->back->hw) || ice_vf_is_port_vlan_ena(vf)) |
241 | return; |
242 | |
243 | if (vsi->inner_vlan_ops.dis_rx_filtering(vsi)) |
244 | dev_dbg(ice_pf_to_dev(vf->pf), "Failed to disable Rx VLAN filtering for old VF with VIRTCHNL_VF_OFFLOAD_VLAN support\n" ); |
245 | } |
246 | |