]> Git Repo - linux.git/blob - drivers/net/ethernet/intel/ice/ice_vf_vsi_vlan_ops.c
ice: update reset path for SRIOV LAG support
[linux.git] / drivers / net / ethernet / intel / ice / ice_vf_vsi_vlan_ops.c
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(&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(&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(&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(&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(&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 }
This page took 0.042261 seconds and 4 git commands to generate.