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1// SPDX-License-Identifier: GPL-2.02/* 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 int12noop_vlan_arg(struct ice_vsi __always_unused *vsi,13 struct ice_vlan __always_unused *vlan)14{15 return 0;16}17 18static int19noop_vlan(struct ice_vsi __always_unused *vsi)20{21 return 0;22}23 24static 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(&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 filtering51 */52 vlan_ops->dis_rx_filtering = noop_vlan;53 54 vlan_ops->ena_rx_filtering = ice_vsi_ena_rx_vlan_filtering;55}56 57static 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(&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 else87 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 VLAN93 * @vsi: VF's VSI being configured94 *95 * The function won't create port VLAN, it only allows to create port VLAN96 * using VLAN ops on the VF VSI.97 */98void 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 VLAN108 * @vsi: VF's VSI being configured109 *110 * The function should be called after removing port VLAN on VSI111 * (using VLAN ops)112 */113void 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 VSI123 * @vsi: VF's VSI being configured124 *125 * If Double VLAN Mode (DVM) is enabled, assume that the VF supports the new126 * 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 to128 * VIRTCHNL_VF_VLAN_OFFLOAD_V2.129 */130void 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 else142 ice_port_vlan_off(vsi);143 144 vlan_ops = ice_is_dvm_ena(&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 DVM154 * @vsi: VF's VSI being configured155 *156 * This should only be called when Double VLAN Mode (DVM) is enabled, there157 * is not a port VLAN enabled on this VF, and the VF negotiates158 * VIRTCHNL_VF_OFFLOAD_VLAN.159 *160 * This function sets up the VF VSI's inner and outer ice_vsi_vlan_ops and also161 * initializes software only VLAN mode (i.e. allow all VLANs). Also, use no-op162 * implementations for any functions that may be called during the lifetime of163 * the VF so these methods do nothing and succeed.164 */165void 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(&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 VLANs182 * for VFs that only support VIRTCHNL_VF_OFFLOAD_VLAN and don't have a183 * port VLAN configured184 */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 VLANs190 * for VFs that only support VIRTCHNL_VF_OFFLOAD_VLAN and don't have a191 * port VLAN configured192 */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 SVM227 * @vsi: VF's VSI being configured228 *229 * This should only be called when Single VLAN Mode (SVM) is enabled, there is230 * not a port VLAN enabled on this VF, and the VF negotiates231 * VIRTCHNL_VF_OFFLOAD_VLAN.232 *233 * All of the normal SVM VLAN ops are identical for this case. However, by234 * default Rx VLAN filtering should be turned off by default in this case.235 */236void 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(&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