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4022 4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 4038 4039 4040 4041 4042 4043 4044 4045 4046 4047 4048 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062 4063 4064 4065 4066 4067 4068 4069 4070 4071 4072 4073 4074 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084 4085 4086 4087 4088 4089 4090 4091 4092 4093 4094 4095 4096 4097 4098 4099 4100 4101 4102 4103 4104 4105 4106 4107 4108 4109 4110 4111 4112 4113 4114 4115 4116 4117 4118 4119 4120 4121 4122 4123 4124 4125 4126 4127 4128 4129 4130 4131 4132 4133 4134 4135 4136 4137 4138 4139 4140 4141 4142 4143 4144 4145 4146 4147 4148 4149 4150 4151 4152 4153 4154 4155 4156 4157 4158 4159 4160 4161 4162 4163 4164 4165 4166 4167 4168 4169 4170 4171 4172 4173 4174 4175 4176 4177 4178 4179 4180 4181 4182 4183 4184 4185 4186 4187 4188 4189 4190 4191 4192 4193 4194 4195 4196 | // SPDX-License-Identifier: GPL-2.0 /* Copyright (C) 2022, Intel Corporation. */ #include "ice_virtchnl.h" #include "ice_vf_lib_private.h" #include "ice.h" #include "ice_base.h" #include "ice_lib.h" #include "ice_fltr.h" #include "ice_virtchnl_allowlist.h" #include "ice_vf_vsi_vlan_ops.h" #include "ice_vlan.h" #include "ice_flex_pipe.h" #include "ice_dcb_lib.h" #define FIELD_SELECTOR(proto_hdr_field) \ BIT((proto_hdr_field) & PROTO_HDR_FIELD_MASK) struct ice_vc_hdr_match_type { u32 vc_hdr; /* virtchnl headers (VIRTCHNL_PROTO_HDR_XXX) */ u32 ice_hdr; /* ice headers (ICE_FLOW_SEG_HDR_XXX) */ }; static const struct ice_vc_hdr_match_type ice_vc_hdr_list[] = { {VIRTCHNL_PROTO_HDR_NONE, ICE_FLOW_SEG_HDR_NONE}, {VIRTCHNL_PROTO_HDR_ETH, ICE_FLOW_SEG_HDR_ETH}, {VIRTCHNL_PROTO_HDR_S_VLAN, ICE_FLOW_SEG_HDR_VLAN}, {VIRTCHNL_PROTO_HDR_C_VLAN, ICE_FLOW_SEG_HDR_VLAN}, {VIRTCHNL_PROTO_HDR_IPV4, ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV_OTHER}, {VIRTCHNL_PROTO_HDR_IPV6, ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_IPV_OTHER}, {VIRTCHNL_PROTO_HDR_TCP, ICE_FLOW_SEG_HDR_TCP}, {VIRTCHNL_PROTO_HDR_UDP, ICE_FLOW_SEG_HDR_UDP}, {VIRTCHNL_PROTO_HDR_SCTP, ICE_FLOW_SEG_HDR_SCTP}, {VIRTCHNL_PROTO_HDR_PPPOE, ICE_FLOW_SEG_HDR_PPPOE}, {VIRTCHNL_PROTO_HDR_GTPU_IP, ICE_FLOW_SEG_HDR_GTPU_IP}, {VIRTCHNL_PROTO_HDR_GTPU_EH, ICE_FLOW_SEG_HDR_GTPU_EH}, {VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_DWN, ICE_FLOW_SEG_HDR_GTPU_DWN}, {VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_UP, ICE_FLOW_SEG_HDR_GTPU_UP}, {VIRTCHNL_PROTO_HDR_L2TPV3, ICE_FLOW_SEG_HDR_L2TPV3}, {VIRTCHNL_PROTO_HDR_ESP, ICE_FLOW_SEG_HDR_ESP}, {VIRTCHNL_PROTO_HDR_AH, ICE_FLOW_SEG_HDR_AH}, {VIRTCHNL_PROTO_HDR_PFCP, ICE_FLOW_SEG_HDR_PFCP_SESSION}, }; struct ice_vc_hash_field_match_type { u32 vc_hdr; /* virtchnl headers * (VIRTCHNL_PROTO_HDR_XXX) */ u32 vc_hash_field; /* virtchnl hash fields selector * FIELD_SELECTOR((VIRTCHNL_PROTO_HDR_ETH_XXX)) */ u64 ice_hash_field; /* ice hash fields * (BIT_ULL(ICE_FLOW_FIELD_IDX_XXX)) */ }; static const struct ice_vc_hash_field_match_type ice_vc_hash_field_list[] = { {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC), BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_SA)}, {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST), BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_DA)}, {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC) | FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST), ICE_FLOW_HASH_ETH}, {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_ETHERTYPE), BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_TYPE)}, {VIRTCHNL_PROTO_HDR_S_VLAN, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_S_VLAN_ID), BIT_ULL(ICE_FLOW_FIELD_IDX_S_VLAN)}, {VIRTCHNL_PROTO_HDR_C_VLAN, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_C_VLAN_ID), BIT_ULL(ICE_FLOW_FIELD_IDX_C_VLAN)}, {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC), BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)}, {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST), BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)}, {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) | FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST), ICE_FLOW_HASH_IPV4}, {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) | FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT), BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)}, {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) | FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT), BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)}, {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) | FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) | FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT), ICE_FLOW_HASH_IPV4 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)}, {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT), BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)}, {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC), BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)}, {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST), BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)}, {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) | FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST), ICE_FLOW_HASH_IPV6}, {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) | FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT), BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)}, {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) | FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT), BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)}, {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) | FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) | FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT), ICE_FLOW_HASH_IPV6 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)}, {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT), BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)}, {VIRTCHNL_PROTO_HDR_TCP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT), BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)}, {VIRTCHNL_PROTO_HDR_TCP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT), BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)}, {VIRTCHNL_PROTO_HDR_TCP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT) | FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT), ICE_FLOW_HASH_TCP_PORT}, {VIRTCHNL_PROTO_HDR_UDP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT), BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)}, {VIRTCHNL_PROTO_HDR_UDP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT), BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)}, {VIRTCHNL_PROTO_HDR_UDP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT) | FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT), ICE_FLOW_HASH_UDP_PORT}, {VIRTCHNL_PROTO_HDR_SCTP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT), BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)}, {VIRTCHNL_PROTO_HDR_SCTP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT), BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)}, {VIRTCHNL_PROTO_HDR_SCTP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT) | FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT), ICE_FLOW_HASH_SCTP_PORT}, {VIRTCHNL_PROTO_HDR_PPPOE, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PPPOE_SESS_ID), BIT_ULL(ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID)}, {VIRTCHNL_PROTO_HDR_GTPU_IP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_GTPU_IP_TEID), BIT_ULL(ICE_FLOW_FIELD_IDX_GTPU_IP_TEID)}, {VIRTCHNL_PROTO_HDR_L2TPV3, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID), BIT_ULL(ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID)}, {VIRTCHNL_PROTO_HDR_ESP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ESP_SPI), BIT_ULL(ICE_FLOW_FIELD_IDX_ESP_SPI)}, {VIRTCHNL_PROTO_HDR_AH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_AH_SPI), BIT_ULL(ICE_FLOW_FIELD_IDX_AH_SPI)}, {VIRTCHNL_PROTO_HDR_PFCP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PFCP_SEID), BIT_ULL(ICE_FLOW_FIELD_IDX_PFCP_SEID)}, }; /** * ice_vc_vf_broadcast - Broadcast a message to all VFs on PF * @pf: pointer to the PF structure * @v_opcode: operation code * @v_retval: return value * @msg: pointer to the msg buffer * @msglen: msg length */ static void ice_vc_vf_broadcast(struct ice_pf *pf, enum virtchnl_ops v_opcode, enum virtchnl_status_code v_retval, u8 *msg, u16 msglen) { struct ice_hw *hw = &pf->hw; struct ice_vf *vf; unsigned int bkt; mutex_lock(&pf->vfs.table_lock); ice_for_each_vf(pf, bkt, vf) { /* Not all vfs are enabled so skip the ones that are not */ if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states) && !test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) continue; /* Ignore return value on purpose - a given VF may fail, but * we need to keep going and send to all of them */ ice_aq_send_msg_to_vf(hw, vf->vf_id, v_opcode, v_retval, msg, msglen, NULL); } mutex_unlock(&pf->vfs.table_lock); } /** * ice_set_pfe_link - Set the link speed/status of the virtchnl_pf_event * @vf: pointer to the VF structure * @pfe: pointer to the virtchnl_pf_event to set link speed/status for * @ice_link_speed: link speed specified by ICE_AQ_LINK_SPEED_* * @link_up: whether or not to set the link up/down */ static void ice_set_pfe_link(struct ice_vf *vf, struct virtchnl_pf_event *pfe, int ice_link_speed, bool link_up) { if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) { pfe->event_data.link_event_adv.link_status = link_up; /* Speed in Mbps */ pfe->event_data.link_event_adv.link_speed = ice_conv_link_speed_to_virtchnl(true, ice_link_speed); } else { pfe->event_data.link_event.link_status = link_up; /* Legacy method for virtchnl link speeds */ pfe->event_data.link_event.link_speed = (enum virtchnl_link_speed) ice_conv_link_speed_to_virtchnl(false, ice_link_speed); } } /** * ice_vc_notify_vf_link_state - Inform a VF of link status * @vf: pointer to the VF structure * * send a link status message to a single VF */ void ice_vc_notify_vf_link_state(struct ice_vf *vf) { struct virtchnl_pf_event pfe = { 0 }; struct ice_hw *hw = &vf->pf->hw; pfe.event = VIRTCHNL_EVENT_LINK_CHANGE; pfe.severity = PF_EVENT_SEVERITY_INFO; if (ice_is_vf_link_up(vf)) ice_set_pfe_link(vf, &pfe, hw->port_info->phy.link_info.link_speed, true); else ice_set_pfe_link(vf, &pfe, ICE_AQ_LINK_SPEED_UNKNOWN, false); ice_aq_send_msg_to_vf(hw, vf->vf_id, VIRTCHNL_OP_EVENT, VIRTCHNL_STATUS_SUCCESS, (u8 *)&pfe, sizeof(pfe), NULL); } /** * ice_vc_notify_link_state - Inform all VFs on a PF of link status * @pf: pointer to the PF structure */ void ice_vc_notify_link_state(struct ice_pf *pf) { struct ice_vf *vf; unsigned int bkt; mutex_lock(&pf->vfs.table_lock); ice_for_each_vf(pf, bkt, vf) ice_vc_notify_vf_link_state(vf); mutex_unlock(&pf->vfs.table_lock); } /** * ice_vc_notify_reset - Send pending reset message to all VFs * @pf: pointer to the PF structure * * indicate a pending reset to all VFs on a given PF */ void ice_vc_notify_reset(struct ice_pf *pf) { struct virtchnl_pf_event pfe; if (!ice_has_vfs(pf)) return; pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING; pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM; ice_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, VIRTCHNL_STATUS_SUCCESS, (u8 *)&pfe, sizeof(struct virtchnl_pf_event)); } /** * ice_vc_send_msg_to_vf - Send message to VF * @vf: pointer to the VF info * @v_opcode: virtual channel opcode * @v_retval: virtual channel return value * @msg: pointer to the msg buffer * @msglen: msg length * * send msg to VF */ int ice_vc_send_msg_to_vf(struct ice_vf *vf, u32 v_opcode, enum virtchnl_status_code v_retval, u8 *msg, u16 msglen) { struct device *dev; struct ice_pf *pf; int aq_ret; pf = vf->pf; dev = ice_pf_to_dev(pf); aq_ret = ice_aq_send_msg_to_vf(&pf->hw, vf->vf_id, v_opcode, v_retval, msg, msglen, NULL); if (aq_ret && pf->hw.mailboxq.sq_last_status != ICE_AQ_RC_ENOSYS) { dev_info(dev, "Unable to send the message to VF %d ret %d aq_err %s\n", vf->vf_id, aq_ret, ice_aq_str(pf->hw.mailboxq.sq_last_status)); return -EIO; } return 0; } /** * ice_vc_get_ver_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to request the API version used by the PF */ static int ice_vc_get_ver_msg(struct ice_vf *vf, u8 *msg) { struct virtchnl_version_info info = { VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR }; vf->vf_ver = *(struct virtchnl_version_info *)msg; /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */ if (VF_IS_V10(&vf->vf_ver)) info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS; return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION, VIRTCHNL_STATUS_SUCCESS, (u8 *)&info, sizeof(struct virtchnl_version_info)); } /** * ice_vc_get_max_frame_size - get max frame size allowed for VF * @vf: VF used to determine max frame size * * Max frame size is determined based on the current port's max frame size and * whether a port VLAN is configured on this VF. The VF is not aware whether * it's in a port VLAN so the PF needs to account for this in max frame size * checks and sending the max frame size to the VF. */ static u16 ice_vc_get_max_frame_size(struct ice_vf *vf) { struct ice_port_info *pi = ice_vf_get_port_info(vf); u16 max_frame_size; max_frame_size = pi->phy.link_info.max_frame_size; if (ice_vf_is_port_vlan_ena(vf)) max_frame_size -= VLAN_HLEN; return max_frame_size; } /** * ice_vc_get_vlan_caps * @hw: pointer to the hw * @vf: pointer to the VF info * @vsi: pointer to the VSI * @driver_caps: current driver caps * * Return 0 if there is no VLAN caps supported, or VLAN caps value */ static u32 ice_vc_get_vlan_caps(struct ice_hw *hw, struct ice_vf *vf, struct ice_vsi *vsi, u32 driver_caps) { if (ice_is_eswitch_mode_switchdev(vf->pf)) /* In switchdev setting VLAN from VF isn't supported */ return 0; if (driver_caps & VIRTCHNL_VF_OFFLOAD_VLAN_V2) { /* VLAN offloads based on current device configuration */ return VIRTCHNL_VF_OFFLOAD_VLAN_V2; } else if (driver_caps & VIRTCHNL_VF_OFFLOAD_VLAN) { /* allow VF to negotiate VIRTCHNL_VF_OFFLOAD explicitly for * these two conditions, which amounts to guest VLAN filtering * and offloads being based on the inner VLAN or the * inner/single VLAN respectively and don't allow VF to * negotiate VIRTCHNL_VF_OFFLOAD in any other cases */ if (ice_is_dvm_ena(hw) && ice_vf_is_port_vlan_ena(vf)) { return VIRTCHNL_VF_OFFLOAD_VLAN; } else if (!ice_is_dvm_ena(hw) && !ice_vf_is_port_vlan_ena(vf)) { /* configure backward compatible support for VFs that * only support VIRTCHNL_VF_OFFLOAD_VLAN, the PF is * configured in SVM, and no port VLAN is configured */ ice_vf_vsi_cfg_svm_legacy_vlan_mode(vsi); return VIRTCHNL_VF_OFFLOAD_VLAN; } else if (ice_is_dvm_ena(hw)) { /* configure software offloaded VLAN support when DVM * is enabled, but no port VLAN is enabled */ ice_vf_vsi_cfg_dvm_legacy_vlan_mode(vsi); } } return 0; } /** * ice_vc_get_vf_res_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to request its resources */ static int ice_vc_get_vf_res_msg(struct ice_vf *vf, u8 *msg) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_vf_resource *vfres = NULL; struct ice_hw *hw = &vf->pf->hw; struct ice_vsi *vsi; int len = 0; int ret; if (ice_check_vf_init(vf)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto err; } len = virtchnl_struct_size(vfres, vsi_res, 0); vfres = kzalloc(len, GFP_KERNEL); if (!vfres) { v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY; len = 0; goto err; } if (VF_IS_V11(&vf->vf_ver)) vf->driver_caps = *(u32 *)msg; else vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 | VIRTCHNL_VF_OFFLOAD_VLAN; vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2; vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto err; } vfres->vf_cap_flags |= ice_vc_get_vlan_caps(hw, vf, vsi, vf->driver_caps); if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_FDIR_PF) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_FDIR_PF; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_WB_ON_ITR; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_CRC) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_CRC; if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF; if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO) vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_USO; vfres->num_vsis = 1; /* Tx and Rx queue are equal for VF */ vfres->num_queue_pairs = vsi->num_txq; vfres->max_vectors = vf->num_msix; vfres->rss_key_size = ICE_VSIQF_HKEY_ARRAY_SIZE; vfres->rss_lut_size = ICE_LUT_VSI_SIZE; vfres->max_mtu = ice_vc_get_max_frame_size(vf); vfres->vsi_res[0].vsi_id = ICE_VF_VSI_ID; vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV; vfres->vsi_res[0].num_queue_pairs = vsi->num_txq; ether_addr_copy(vfres->vsi_res[0].default_mac_addr, vf->hw_lan_addr); /* match guest capabilities */ vf->driver_caps = vfres->vf_cap_flags; ice_vc_set_caps_allowlist(vf); ice_vc_set_working_allowlist(vf); set_bit(ICE_VF_STATE_ACTIVE, vf->vf_states); err: /* send the response back to the VF */ ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, v_ret, (u8 *)vfres, len); kfree(vfres); return ret; } /** * ice_vc_reset_vf_msg * @vf: pointer to the VF info * * called from the VF to reset itself, * unlike other virtchnl messages, PF driver * doesn't send the response back to the VF */ static void ice_vc_reset_vf_msg(struct ice_vf *vf) { if (test_bit(ICE_VF_STATE_INIT, vf->vf_states)) ice_reset_vf(vf, 0); } /** * ice_vc_isvalid_vsi_id * @vf: pointer to the VF info * @vsi_id: VF relative VSI ID * * check for the valid VSI ID */ bool ice_vc_isvalid_vsi_id(struct ice_vf *vf, u16 vsi_id) { return vsi_id == ICE_VF_VSI_ID; } /** * ice_vc_isvalid_q_id * @vsi: VSI to check queue ID against * @qid: VSI relative queue ID * * check for the valid queue ID */ static bool ice_vc_isvalid_q_id(struct ice_vsi *vsi, u8 qid) { /* allocated Tx and Rx queues should be always equal for VF VSI */ return qid < vsi->alloc_txq; } /** * ice_vc_isvalid_ring_len * @ring_len: length of ring * * check for the valid ring count, should be multiple of ICE_REQ_DESC_MULTIPLE * or zero */ static bool ice_vc_isvalid_ring_len(u16 ring_len) { return ring_len == 0 || (ring_len >= ICE_MIN_NUM_DESC && ring_len <= ICE_MAX_NUM_DESC && !(ring_len % ICE_REQ_DESC_MULTIPLE)); } /** * ice_vc_validate_pattern * @vf: pointer to the VF info * @proto: virtchnl protocol headers * * validate the pattern is supported or not. * * Return: true on success, false on error. */ bool ice_vc_validate_pattern(struct ice_vf *vf, struct virtchnl_proto_hdrs *proto) { bool is_ipv4 = false; bool is_ipv6 = false; bool is_udp = false; u16 ptype = -1; int i = 0; while (i < proto->count && proto->proto_hdr[i].type != VIRTCHNL_PROTO_HDR_NONE) { switch (proto->proto_hdr[i].type) { case VIRTCHNL_PROTO_HDR_ETH: ptype = ICE_PTYPE_MAC_PAY; break; case VIRTCHNL_PROTO_HDR_IPV4: ptype = ICE_PTYPE_IPV4_PAY; is_ipv4 = true; break; case VIRTCHNL_PROTO_HDR_IPV6: ptype = ICE_PTYPE_IPV6_PAY; is_ipv6 = true; break; case VIRTCHNL_PROTO_HDR_UDP: if (is_ipv4) ptype = ICE_PTYPE_IPV4_UDP_PAY; else if (is_ipv6) ptype = ICE_PTYPE_IPV6_UDP_PAY; is_udp = true; break; case VIRTCHNL_PROTO_HDR_TCP: if (is_ipv4) ptype = ICE_PTYPE_IPV4_TCP_PAY; else if (is_ipv6) ptype = ICE_PTYPE_IPV6_TCP_PAY; break; case VIRTCHNL_PROTO_HDR_SCTP: if (is_ipv4) ptype = ICE_PTYPE_IPV4_SCTP_PAY; else if (is_ipv6) ptype = ICE_PTYPE_IPV6_SCTP_PAY; break; case VIRTCHNL_PROTO_HDR_GTPU_IP: case VIRTCHNL_PROTO_HDR_GTPU_EH: if (is_ipv4) ptype = ICE_MAC_IPV4_GTPU; else if (is_ipv6) ptype = ICE_MAC_IPV6_GTPU; goto out; case VIRTCHNL_PROTO_HDR_L2TPV3: if (is_ipv4) ptype = ICE_MAC_IPV4_L2TPV3; else if (is_ipv6) ptype = ICE_MAC_IPV6_L2TPV3; goto out; case VIRTCHNL_PROTO_HDR_ESP: if (is_ipv4) ptype = is_udp ? ICE_MAC_IPV4_NAT_T_ESP : ICE_MAC_IPV4_ESP; else if (is_ipv6) ptype = is_udp ? ICE_MAC_IPV6_NAT_T_ESP : ICE_MAC_IPV6_ESP; goto out; case VIRTCHNL_PROTO_HDR_AH: if (is_ipv4) ptype = ICE_MAC_IPV4_AH; else if (is_ipv6) ptype = ICE_MAC_IPV6_AH; goto out; case VIRTCHNL_PROTO_HDR_PFCP: if (is_ipv4) ptype = ICE_MAC_IPV4_PFCP_SESSION; else if (is_ipv6) ptype = ICE_MAC_IPV6_PFCP_SESSION; goto out; default: break; } i++; } out: return ice_hw_ptype_ena(&vf->pf->hw, ptype); } /** * ice_vc_parse_rss_cfg - parses hash fields and headers from * a specific virtchnl RSS cfg * @hw: pointer to the hardware * @rss_cfg: pointer to the virtchnl RSS cfg * @hash_cfg: pointer to the HW hash configuration * * Return true if all the protocol header and hash fields in the RSS cfg could * be parsed, else return false * * This function parses the virtchnl RSS cfg to be the intended * hash fields and the intended header for RSS configuration */ static bool ice_vc_parse_rss_cfg(struct ice_hw *hw, struct virtchnl_rss_cfg *rss_cfg, struct ice_rss_hash_cfg *hash_cfg) { const struct ice_vc_hash_field_match_type *hf_list; const struct ice_vc_hdr_match_type *hdr_list; int i, hf_list_len, hdr_list_len; u32 *addl_hdrs = &hash_cfg->addl_hdrs; u64 *hash_flds = &hash_cfg->hash_flds; /* set outer layer RSS as default */ hash_cfg->hdr_type = ICE_RSS_OUTER_HEADERS; if (rss_cfg->rss_algorithm == VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC) hash_cfg->symm = true; else hash_cfg->symm = false; hf_list = ice_vc_hash_field_list; hf_list_len = ARRAY_SIZE(ice_vc_hash_field_list); hdr_list = ice_vc_hdr_list; hdr_list_len = ARRAY_SIZE(ice_vc_hdr_list); for (i = 0; i < rss_cfg->proto_hdrs.count; i++) { struct virtchnl_proto_hdr *proto_hdr = &rss_cfg->proto_hdrs.proto_hdr[i]; bool hdr_found = false; int j; /* Find matched ice headers according to virtchnl headers. */ for (j = 0; j < hdr_list_len; j++) { struct ice_vc_hdr_match_type hdr_map = hdr_list[j]; if (proto_hdr->type == hdr_map.vc_hdr) { *addl_hdrs |= hdr_map.ice_hdr; hdr_found = true; } } if (!hdr_found) return false; /* Find matched ice hash fields according to * virtchnl hash fields. */ for (j = 0; j < hf_list_len; j++) { struct ice_vc_hash_field_match_type hf_map = hf_list[j]; if (proto_hdr->type == hf_map.vc_hdr && proto_hdr->field_selector == hf_map.vc_hash_field) { *hash_flds |= hf_map.ice_hash_field; break; } } } return true; } /** * ice_vf_adv_rss_offload_ena - determine if capabilities support advanced * RSS offloads * @caps: VF driver negotiated capabilities * * Return true if VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF capability is set, * else return false */ static bool ice_vf_adv_rss_offload_ena(u32 caps) { return !!(caps & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF); } /** * ice_vc_handle_rss_cfg * @vf: pointer to the VF info * @msg: pointer to the message buffer * @add: add a RSS config if true, otherwise delete a RSS config * * This function adds/deletes a RSS config */ static int ice_vc_handle_rss_cfg(struct ice_vf *vf, u8 *msg, bool add) { u32 v_opcode = add ? VIRTCHNL_OP_ADD_RSS_CFG : VIRTCHNL_OP_DEL_RSS_CFG; struct virtchnl_rss_cfg *rss_cfg = (struct virtchnl_rss_cfg *)msg; enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct device *dev = ice_pf_to_dev(vf->pf); struct ice_hw *hw = &vf->pf->hw; struct ice_vsi *vsi; if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) { dev_dbg(dev, "VF %d attempting to configure RSS, but RSS is not supported by the PF\n", vf->vf_id); v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED; goto error_param; } if (!ice_vf_adv_rss_offload_ena(vf->driver_caps)) { dev_dbg(dev, "VF %d attempting to configure RSS, but Advanced RSS offload is not supported\n", vf->vf_id); v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (rss_cfg->proto_hdrs.count > VIRTCHNL_MAX_NUM_PROTO_HDRS || rss_cfg->rss_algorithm < VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC || rss_cfg->rss_algorithm > VIRTCHNL_RSS_ALG_XOR_SYMMETRIC) { dev_dbg(dev, "VF %d attempting to configure RSS, but RSS configuration is not valid\n", vf->vf_id); v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!ice_vc_validate_pattern(vf, &rss_cfg->proto_hdrs)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (rss_cfg->rss_algorithm == VIRTCHNL_RSS_ALG_R_ASYMMETRIC) { struct ice_vsi_ctx *ctx; u8 lut_type, hash_type; int status; lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_VSI; hash_type = add ? ICE_AQ_VSI_Q_OPT_RSS_HASH_XOR : ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) { v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY; goto error_param; } ctx->info.q_opt_rss = FIELD_PREP(ICE_AQ_VSI_Q_OPT_RSS_LUT_M, lut_type) | FIELD_PREP(ICE_AQ_VSI_Q_OPT_RSS_HASH_M, hash_type); /* Preserve existing queueing option setting */ ctx->info.q_opt_rss |= (vsi->info.q_opt_rss & ICE_AQ_VSI_Q_OPT_RSS_GBL_LUT_M); ctx->info.q_opt_tc = vsi->info.q_opt_tc; ctx->info.q_opt_flags = vsi->info.q_opt_rss; ctx->info.valid_sections = cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID); status = ice_update_vsi(hw, vsi->idx, ctx, NULL); if (status) { dev_err(dev, "update VSI for RSS failed, err %d aq_err %s\n", status, ice_aq_str(hw->adminq.sq_last_status)); v_ret = VIRTCHNL_STATUS_ERR_PARAM; } else { vsi->info.q_opt_rss = ctx->info.q_opt_rss; } kfree(ctx); } else { struct ice_rss_hash_cfg cfg; /* Only check for none raw pattern case */ if (!ice_vc_validate_pattern(vf, &rss_cfg->proto_hdrs)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } cfg.addl_hdrs = ICE_FLOW_SEG_HDR_NONE; cfg.hash_flds = ICE_HASH_INVALID; cfg.hdr_type = ICE_RSS_ANY_HEADERS; if (!ice_vc_parse_rss_cfg(hw, rss_cfg, &cfg)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (add) { if (ice_add_rss_cfg(hw, vsi, &cfg)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; dev_err(dev, "ice_add_rss_cfg failed for vsi = %d, v_ret = %d\n", vsi->vsi_num, v_ret); } } else { int status; status = ice_rem_rss_cfg(hw, vsi->idx, &cfg); /* We just ignore -ENOENT, because if two configurations * share the same profile remove one of them actually * removes both, since the profile is deleted. */ if (status && status != -ENOENT) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; dev_err(dev, "ice_rem_rss_cfg failed for VF ID:%d, error:%d\n", vf->vf_id, status); } } } error_param: return ice_vc_send_msg_to_vf(vf, v_opcode, v_ret, NULL, 0); } /** * ice_vc_config_rss_key * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * Configure the VF's RSS key */ static int ice_vc_config_rss_key(struct ice_vf *vf, u8 *msg) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_rss_key *vrk = (struct virtchnl_rss_key *)msg; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, vrk->vsi_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (ice_set_rss_key(vsi, vrk->key)) v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR; error_param: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, v_ret, NULL, 0); } /** * ice_vc_config_rss_lut * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * Configure the VF's RSS LUT */ static int ice_vc_config_rss_lut(struct ice_vf *vf, u8 *msg) { struct virtchnl_rss_lut *vrl = (struct virtchnl_rss_lut *)msg; enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, vrl->vsi_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (vrl->lut_entries != ICE_LUT_VSI_SIZE) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (ice_set_rss_lut(vsi, vrl->lut, ICE_LUT_VSI_SIZE)) v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR; error_param: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, v_ret, NULL, 0); } /** * ice_vc_config_rss_hfunc * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * Configure the VF's RSS Hash function */ static int ice_vc_config_rss_hfunc(struct ice_vf *vf, u8 *msg) { struct virtchnl_rss_hfunc *vrh = (struct virtchnl_rss_hfunc *)msg; enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; u8 hfunc = ICE_AQ_VSI_Q_OPT_RSS_HASH_TPLZ; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, vrh->vsi_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (vrh->rss_algorithm == VIRTCHNL_RSS_ALG_TOEPLITZ_SYMMETRIC) hfunc = ICE_AQ_VSI_Q_OPT_RSS_HASH_SYM_TPLZ; if (ice_set_rss_hfunc(vsi, hfunc)) v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR; error_param: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_HFUNC, v_ret, NULL, 0); } /** * ice_vc_cfg_promiscuous_mode_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to configure VF VSIs promiscuous mode */ static int ice_vc_cfg_promiscuous_mode_msg(struct ice_vf *vf, u8 *msg) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; bool rm_promisc, alluni = false, allmulti = false; struct virtchnl_promisc_info *info = (struct virtchnl_promisc_info *)msg; struct ice_vsi_vlan_ops *vlan_ops; int mcast_err = 0, ucast_err = 0; struct ice_pf *pf = vf->pf; struct ice_vsi *vsi; u8 mcast_m, ucast_m; struct device *dev; int ret = 0; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, info->vsi_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } dev = ice_pf_to_dev(pf); if (!ice_is_vf_trusted(vf)) { dev_err(dev, "Unprivileged VF %d is attempting to configure promiscuous mode\n", vf->vf_id); /* Leave v_ret alone, lie to the VF on purpose. */ goto error_param; } if (info->flags & FLAG_VF_UNICAST_PROMISC) alluni = true; if (info->flags & FLAG_VF_MULTICAST_PROMISC) allmulti = true; rm_promisc = !allmulti && !alluni; vlan_ops = ice_get_compat_vsi_vlan_ops(vsi); if (rm_promisc) ret = vlan_ops->ena_rx_filtering(vsi); else ret = vlan_ops->dis_rx_filtering(vsi); if (ret) { dev_err(dev, "Failed to configure VLAN pruning in promiscuous mode\n"); v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } ice_vf_get_promisc_masks(vf, vsi, &ucast_m, &mcast_m); if (!test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, pf->flags)) { if (alluni) { /* in this case we're turning on promiscuous mode */ ret = ice_set_dflt_vsi(vsi); } else { /* in this case we're turning off promiscuous mode */ if (ice_is_dflt_vsi_in_use(vsi->port_info)) ret = ice_clear_dflt_vsi(vsi); } /* in this case we're turning on/off only * allmulticast */ if (allmulti) mcast_err = ice_vf_set_vsi_promisc(vf, vsi, mcast_m); else mcast_err = ice_vf_clear_vsi_promisc(vf, vsi, mcast_m); if (ret) { dev_err(dev, "Turning on/off promiscuous mode for VF %d failed, error: %d\n", vf->vf_id, ret); v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR; goto error_param; } } else { if (alluni) ucast_err = ice_vf_set_vsi_promisc(vf, vsi, ucast_m); else ucast_err = ice_vf_clear_vsi_promisc(vf, vsi, ucast_m); if (allmulti) mcast_err = ice_vf_set_vsi_promisc(vf, vsi, mcast_m); else mcast_err = ice_vf_clear_vsi_promisc(vf, vsi, mcast_m); if (ucast_err || mcast_err) v_ret = VIRTCHNL_STATUS_ERR_PARAM; } if (!mcast_err) { if (allmulti && !test_and_set_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states)) dev_info(dev, "VF %u successfully set multicast promiscuous mode\n", vf->vf_id); else if (!allmulti && test_and_clear_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states)) dev_info(dev, "VF %u successfully unset multicast promiscuous mode\n", vf->vf_id); } else { dev_err(dev, "Error while modifying multicast promiscuous mode for VF %u, error: %d\n", vf->vf_id, mcast_err); } if (!ucast_err) { if (alluni && !test_and_set_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states)) dev_info(dev, "VF %u successfully set unicast promiscuous mode\n", vf->vf_id); else if (!alluni && test_and_clear_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states)) dev_info(dev, "VF %u successfully unset unicast promiscuous mode\n", vf->vf_id); } else { dev_err(dev, "Error while modifying unicast promiscuous mode for VF %u, error: %d\n", vf->vf_id, ucast_err); } error_param: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, v_ret, NULL, 0); } /** * ice_vc_get_stats_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to get VSI stats */ static int ice_vc_get_stats_msg(struct ice_vf *vf, u8 *msg) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_queue_select *vqs = (struct virtchnl_queue_select *)msg; struct ice_eth_stats stats = { 0 }; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } ice_update_eth_stats(vsi); stats = vsi->eth_stats; error_param: /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, v_ret, (u8 *)&stats, sizeof(stats)); } /** * ice_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTCHNL * @vqs: virtchnl_queue_select structure containing bitmaps to validate * * Return true on successful validation, else false */ static bool ice_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs) { if ((!vqs->rx_queues && !vqs->tx_queues) || vqs->rx_queues >= BIT(ICE_MAX_RSS_QS_PER_VF) || vqs->tx_queues >= BIT(ICE_MAX_RSS_QS_PER_VF)) return false; return true; } /** * ice_vf_ena_txq_interrupt - enable Tx queue interrupt via QINT_TQCTL * @vsi: VSI of the VF to configure * @q_idx: VF queue index used to determine the queue in the PF's space */ static void ice_vf_ena_txq_interrupt(struct ice_vsi *vsi, u32 q_idx) { struct ice_hw *hw = &vsi->back->hw; u32 pfq = vsi->txq_map[q_idx]; u32 reg; reg = rd32(hw, QINT_TQCTL(pfq)); /* MSI-X index 0 in the VF's space is always for the OICR, which means * this is most likely a poll mode VF driver, so don't enable an * interrupt that was never configured via VIRTCHNL_OP_CONFIG_IRQ_MAP */ if (!(reg & QINT_TQCTL_MSIX_INDX_M)) return; wr32(hw, QINT_TQCTL(pfq), reg | QINT_TQCTL_CAUSE_ENA_M); } /** * ice_vf_ena_rxq_interrupt - enable Tx queue interrupt via QINT_RQCTL * @vsi: VSI of the VF to configure * @q_idx: VF queue index used to determine the queue in the PF's space */ static void ice_vf_ena_rxq_interrupt(struct ice_vsi *vsi, u32 q_idx) { struct ice_hw *hw = &vsi->back->hw; u32 pfq = vsi->rxq_map[q_idx]; u32 reg; reg = rd32(hw, QINT_RQCTL(pfq)); /* MSI-X index 0 in the VF's space is always for the OICR, which means * this is most likely a poll mode VF driver, so don't enable an * interrupt that was never configured via VIRTCHNL_OP_CONFIG_IRQ_MAP */ if (!(reg & QINT_RQCTL_MSIX_INDX_M)) return; wr32(hw, QINT_RQCTL(pfq), reg | QINT_RQCTL_CAUSE_ENA_M); } /** * ice_vc_ena_qs_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to enable all or specific queue(s) */ static int ice_vc_ena_qs_msg(struct ice_vf *vf, u8 *msg) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_queue_select *vqs = (struct virtchnl_queue_select *)msg; struct ice_vsi *vsi; unsigned long q_map; u16 vf_q_id; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!ice_vc_validate_vqs_bitmaps(vqs)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } /* Enable only Rx rings, Tx rings were enabled by the FW when the * Tx queue group list was configured and the context bits were * programmed using ice_vsi_cfg_txqs */ q_map = vqs->rx_queues; for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) { if (!ice_vc_isvalid_q_id(vsi, vf_q_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } /* Skip queue if enabled */ if (test_bit(vf_q_id, vf->rxq_ena)) continue; if (ice_vsi_ctrl_one_rx_ring(vsi, true, vf_q_id, true)) { dev_err(ice_pf_to_dev(vsi->back), "Failed to enable Rx ring %d on VSI %d\n", vf_q_id, vsi->vsi_num); v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } ice_vf_ena_rxq_interrupt(vsi, vf_q_id); set_bit(vf_q_id, vf->rxq_ena); } q_map = vqs->tx_queues; for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) { if (!ice_vc_isvalid_q_id(vsi, vf_q_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } /* Skip queue if enabled */ if (test_bit(vf_q_id, vf->txq_ena)) continue; ice_vf_ena_txq_interrupt(vsi, vf_q_id); set_bit(vf_q_id, vf->txq_ena); } /* Set flag to indicate that queues are enabled */ if (v_ret == VIRTCHNL_STATUS_SUCCESS) set_bit(ICE_VF_STATE_QS_ENA, vf->vf_states); error_param: /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, v_ret, NULL, 0); } /** * ice_vf_vsi_dis_single_txq - disable a single Tx queue * @vf: VF to disable queue for * @vsi: VSI for the VF * @q_id: VF relative (0-based) queue ID * * Attempt to disable the Tx queue passed in. If the Tx queue was successfully * disabled then clear q_id bit in the enabled queues bitmap and return * success. Otherwise return error. */ static int ice_vf_vsi_dis_single_txq(struct ice_vf *vf, struct ice_vsi *vsi, u16 q_id) { struct ice_txq_meta txq_meta = { 0 }; struct ice_tx_ring *ring; int err; if (!test_bit(q_id, vf->txq_ena)) dev_dbg(ice_pf_to_dev(vsi->back), "Queue %u on VSI %u is not enabled, but stopping it anyway\n", q_id, vsi->vsi_num); ring = vsi->tx_rings[q_id]; if (!ring) return -EINVAL; ice_fill_txq_meta(vsi, ring, &txq_meta); err = ice_vsi_stop_tx_ring(vsi, ICE_NO_RESET, vf->vf_id, ring, &txq_meta); if (err) { dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Tx ring %d on VSI %d\n", q_id, vsi->vsi_num); return err; } /* Clear enabled queues flag */ clear_bit(q_id, vf->txq_ena); return 0; } /** * ice_vc_dis_qs_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to disable all or specific queue(s) */ static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_queue_select *vqs = (struct virtchnl_queue_select *)msg; struct ice_vsi *vsi; unsigned long q_map; u16 vf_q_id; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) && !test_bit(ICE_VF_STATE_QS_ENA, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!ice_vc_validate_vqs_bitmaps(vqs)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (vqs->tx_queues) { q_map = vqs->tx_queues; for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) { if (!ice_vc_isvalid_q_id(vsi, vf_q_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (ice_vf_vsi_dis_single_txq(vf, vsi, vf_q_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } } } q_map = vqs->rx_queues; /* speed up Rx queue disable by batching them if possible */ if (q_map && bitmap_equal(&q_map, vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF)) { if (ice_vsi_stop_all_rx_rings(vsi)) { dev_err(ice_pf_to_dev(vsi->back), "Failed to stop all Rx rings on VSI %d\n", vsi->vsi_num); v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } bitmap_zero(vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF); } else if (q_map) { for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) { if (!ice_vc_isvalid_q_id(vsi, vf_q_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } /* Skip queue if not enabled */ if (!test_bit(vf_q_id, vf->rxq_ena)) continue; if (ice_vsi_ctrl_one_rx_ring(vsi, false, vf_q_id, true)) { dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Rx ring %d on VSI %d\n", vf_q_id, vsi->vsi_num); v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } /* Clear enabled queues flag */ clear_bit(vf_q_id, vf->rxq_ena); } } /* Clear enabled queues flag */ if (v_ret == VIRTCHNL_STATUS_SUCCESS && ice_vf_has_no_qs_ena(vf)) clear_bit(ICE_VF_STATE_QS_ENA, vf->vf_states); error_param: /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, v_ret, NULL, 0); } /** * ice_cfg_interrupt * @vf: pointer to the VF info * @vsi: the VSI being configured * @vector_id: vector ID * @map: vector map for mapping vectors to queues * @q_vector: structure for interrupt vector * configure the IRQ to queue map */ static int ice_cfg_interrupt(struct ice_vf *vf, struct ice_vsi *vsi, u16 vector_id, struct virtchnl_vector_map *map, struct ice_q_vector *q_vector) { u16 vsi_q_id, vsi_q_id_idx; unsigned long qmap; q_vector->num_ring_rx = 0; q_vector->num_ring_tx = 0; qmap = map->rxq_map; for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) { vsi_q_id = vsi_q_id_idx; if (!ice_vc_isvalid_q_id(vsi, vsi_q_id)) return VIRTCHNL_STATUS_ERR_PARAM; q_vector->num_ring_rx++; q_vector->rx.itr_idx = map->rxitr_idx; vsi->rx_rings[vsi_q_id]->q_vector = q_vector; ice_cfg_rxq_interrupt(vsi, vsi_q_id, vector_id, q_vector->rx.itr_idx); } qmap = map->txq_map; for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) { vsi_q_id = vsi_q_id_idx; if (!ice_vc_isvalid_q_id(vsi, vsi_q_id)) return VIRTCHNL_STATUS_ERR_PARAM; q_vector->num_ring_tx++; q_vector->tx.itr_idx = map->txitr_idx; vsi->tx_rings[vsi_q_id]->q_vector = q_vector; ice_cfg_txq_interrupt(vsi, vsi_q_id, vector_id, q_vector->tx.itr_idx); } return VIRTCHNL_STATUS_SUCCESS; } /** * ice_vc_cfg_irq_map_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to configure the IRQ to queue map */ static int ice_vc_cfg_irq_map_msg(struct ice_vf *vf, u8 *msg) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; u16 num_q_vectors_mapped, vsi_id, vector_id; struct virtchnl_irq_map_info *irqmap_info; struct virtchnl_vector_map *map; struct ice_vsi *vsi; int i; irqmap_info = (struct virtchnl_irq_map_info *)msg; num_q_vectors_mapped = irqmap_info->num_vectors; /* Check to make sure number of VF vectors mapped is not greater than * number of VF vectors originally allocated, and check that * there is actually at least a single VF queue vector mapped */ if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) || vf->num_msix < num_q_vectors_mapped || !num_q_vectors_mapped) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } for (i = 0; i < num_q_vectors_mapped; i++) { struct ice_q_vector *q_vector; map = &irqmap_info->vecmap[i]; vector_id = map->vector_id; vsi_id = map->vsi_id; /* vector_id is always 0-based for each VF, and can never be * larger than or equal to the max allowed interrupts per VF */ if (!(vector_id < vf->num_msix) || !ice_vc_isvalid_vsi_id(vf, vsi_id) || (!vector_id && (map->rxq_map || map->txq_map))) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } /* No need to map VF miscellaneous or rogue vector */ if (!vector_id) continue; /* Subtract non queue vector from vector_id passed by VF * to get actual number of VSI queue vector array index */ q_vector = vsi->q_vectors[vector_id - ICE_NONQ_VECS_VF]; if (!q_vector) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } /* lookout for the invalid queue index */ v_ret = (enum virtchnl_status_code) ice_cfg_interrupt(vf, vsi, vector_id, map, q_vector); if (v_ret) goto error_param; } error_param: /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, v_ret, NULL, 0); } /** * ice_vc_cfg_qs_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * called from the VF to configure the Rx/Tx queues */ static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg) { struct virtchnl_vsi_queue_config_info *qci = (struct virtchnl_vsi_queue_config_info *)msg; struct virtchnl_queue_pair_info *qpi; struct ice_pf *pf = vf->pf; struct ice_lag *lag; struct ice_vsi *vsi; u8 act_prt, pri_prt; int i = -1, q_idx; lag = pf->lag; mutex_lock(&pf->lag_mutex); act_prt = ICE_LAG_INVALID_PORT; pri_prt = pf->hw.port_info->lport; if (lag && lag->bonded && lag->primary) { act_prt = lag->active_port; if (act_prt != pri_prt && act_prt != ICE_LAG_INVALID_PORT && lag->upper_netdev) ice_lag_move_vf_nodes_cfg(lag, act_prt, pri_prt); else act_prt = ICE_LAG_INVALID_PORT; } if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) goto error_param; if (!ice_vc_isvalid_vsi_id(vf, qci->vsi_id)) goto error_param; vsi = ice_get_vf_vsi(vf); if (!vsi) goto error_param; if (qci->num_queue_pairs > ICE_MAX_RSS_QS_PER_VF || qci->num_queue_pairs > min_t(u16, vsi->alloc_txq, vsi->alloc_rxq)) { dev_err(ice_pf_to_dev(pf), "VF-%d requesting more than supported number of queues: %d\n", vf->vf_id, min_t(u16, vsi->alloc_txq, vsi->alloc_rxq)); goto error_param; } for (i = 0; i < qci->num_queue_pairs; i++) { if (!qci->qpair[i].rxq.crc_disable) continue; if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_CRC) || vf->vlan_strip_ena) goto error_param; } for (i = 0; i < qci->num_queue_pairs; i++) { qpi = &qci->qpair[i]; if (qpi->txq.vsi_id != qci->vsi_id || qpi->rxq.vsi_id != qci->vsi_id || qpi->rxq.queue_id != qpi->txq.queue_id || qpi->txq.headwb_enabled || !ice_vc_isvalid_ring_len(qpi->txq.ring_len) || !ice_vc_isvalid_ring_len(qpi->rxq.ring_len) || !ice_vc_isvalid_q_id(vsi, qpi->txq.queue_id)) { goto error_param; } q_idx = qpi->rxq.queue_id; /* make sure selected "q_idx" is in valid range of queues * for selected "vsi" */ if (q_idx >= vsi->alloc_txq || q_idx >= vsi->alloc_rxq) { goto error_param; } /* copy Tx queue info from VF into VSI */ if (qpi->txq.ring_len > 0) { vsi->tx_rings[i]->dma = qpi->txq.dma_ring_addr; vsi->tx_rings[i]->count = qpi->txq.ring_len; /* Disable any existing queue first */ if (ice_vf_vsi_dis_single_txq(vf, vsi, q_idx)) goto error_param; /* Configure a queue with the requested settings */ if (ice_vsi_cfg_single_txq(vsi, vsi->tx_rings, q_idx)) { dev_warn(ice_pf_to_dev(pf), "VF-%d failed to configure TX queue %d\n", vf->vf_id, i); goto error_param; } } /* copy Rx queue info from VF into VSI */ if (qpi->rxq.ring_len > 0) { u16 max_frame_size = ice_vc_get_max_frame_size(vf); u32 rxdid; vsi->rx_rings[i]->dma = qpi->rxq.dma_ring_addr; vsi->rx_rings[i]->count = qpi->rxq.ring_len; if (qpi->rxq.crc_disable) vsi->rx_rings[q_idx]->flags |= ICE_RX_FLAGS_CRC_STRIP_DIS; else vsi->rx_rings[q_idx]->flags &= ~ICE_RX_FLAGS_CRC_STRIP_DIS; if (qpi->rxq.databuffer_size != 0 && (qpi->rxq.databuffer_size > ((16 * 1024) - 128) || qpi->rxq.databuffer_size < 1024)) goto error_param; vsi->rx_buf_len = qpi->rxq.databuffer_size; vsi->rx_rings[i]->rx_buf_len = vsi->rx_buf_len; if (qpi->rxq.max_pkt_size > max_frame_size || qpi->rxq.max_pkt_size < 64) goto error_param; vsi->max_frame = qpi->rxq.max_pkt_size; /* add space for the port VLAN since the VF driver is * not expected to account for it in the MTU * calculation */ if (ice_vf_is_port_vlan_ena(vf)) vsi->max_frame += VLAN_HLEN; if (ice_vsi_cfg_single_rxq(vsi, q_idx)) { dev_warn(ice_pf_to_dev(pf), "VF-%d failed to configure RX queue %d\n", vf->vf_id, i); goto error_param; } /* If Rx flex desc is supported, select RXDID for Rx * queues. Otherwise, use legacy 32byte descriptor * format. Legacy 16byte descriptor is not supported. * If this RXDID is selected, return error. */ if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC) { rxdid = qpi->rxq.rxdid; if (!(BIT(rxdid) & pf->supported_rxdids)) goto error_param; } else { rxdid = ICE_RXDID_LEGACY_1; } ice_write_qrxflxp_cntxt(&vsi->back->hw, vsi->rxq_map[q_idx], rxdid, 0x03, false); } } if (lag && lag->bonded && lag->primary && act_prt != ICE_LAG_INVALID_PORT) ice_lag_move_vf_nodes_cfg(lag, pri_prt, act_prt); mutex_unlock(&pf->lag_mutex); /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, VIRTCHNL_STATUS_SUCCESS, NULL, 0); error_param: /* disable whatever we can */ for (; i >= 0; i--) { if (ice_vsi_ctrl_one_rx_ring(vsi, false, i, true)) dev_err(ice_pf_to_dev(pf), "VF-%d could not disable RX queue %d\n", vf->vf_id, i); if (ice_vf_vsi_dis_single_txq(vf, vsi, i)) dev_err(ice_pf_to_dev(pf), "VF-%d could not disable TX queue %d\n", vf->vf_id, i); } if (lag && lag->bonded && lag->primary && act_prt != ICE_LAG_INVALID_PORT) ice_lag_move_vf_nodes_cfg(lag, pri_prt, act_prt); mutex_unlock(&pf->lag_mutex); ice_lag_move_new_vf_nodes(vf); /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES, VIRTCHNL_STATUS_ERR_PARAM, NULL, 0); } /** * ice_can_vf_change_mac * @vf: pointer to the VF info * * Return true if the VF is allowed to change its MAC filters, false otherwise */ static bool ice_can_vf_change_mac(struct ice_vf *vf) { /* If the VF MAC address has been set administratively (via the * ndo_set_vf_mac command), then deny permission to the VF to * add/delete unicast MAC addresses, unless the VF is trusted */ if (vf->pf_set_mac && !ice_is_vf_trusted(vf)) return false; return true; } /** * ice_vc_ether_addr_type - get type of virtchnl_ether_addr * @vc_ether_addr: used to extract the type */ static u8 ice_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr) { return (vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK); } /** * ice_is_vc_addr_legacy - check if the MAC address is from an older VF * @vc_ether_addr: VIRTCHNL structure that contains MAC and type */ static bool ice_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr) { u8 type = ice_vc_ether_addr_type(vc_ether_addr); return (type == VIRTCHNL_ETHER_ADDR_LEGACY); } /** * ice_is_vc_addr_primary - check if the MAC address is the VF's primary MAC * @vc_ether_addr: VIRTCHNL structure that contains MAC and type * * This function should only be called when the MAC address in * virtchnl_ether_addr is a valid unicast MAC */ static bool ice_is_vc_addr_primary(struct virtchnl_ether_addr __maybe_unused *vc_ether_addr) { u8 type = ice_vc_ether_addr_type(vc_ether_addr); return (type == VIRTCHNL_ETHER_ADDR_PRIMARY); } /** * ice_vfhw_mac_add - update the VF's cached hardware MAC if allowed * @vf: VF to update * @vc_ether_addr: structure from VIRTCHNL with MAC to add */ static void ice_vfhw_mac_add(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr) { u8 *mac_addr = vc_ether_addr->addr; if (!is_valid_ether_addr(mac_addr)) return; /* only allow legacy VF drivers to set the device and hardware MAC if it * is zero and allow new VF drivers to set the hardware MAC if the type * was correctly specified over VIRTCHNL */ if ((ice_is_vc_addr_legacy(vc_ether_addr) && is_zero_ether_addr(vf->hw_lan_addr)) || ice_is_vc_addr_primary(vc_ether_addr)) { ether_addr_copy(vf->dev_lan_addr, mac_addr); ether_addr_copy(vf->hw_lan_addr, mac_addr); } /* hardware and device MACs are already set, but its possible that the * VF driver sent the VIRTCHNL_OP_ADD_ETH_ADDR message before the * VIRTCHNL_OP_DEL_ETH_ADDR when trying to update its MAC, so save it * away for the legacy VF driver case as it will be updated in the * delete flow for this case */ if (ice_is_vc_addr_legacy(vc_ether_addr)) { ether_addr_copy(vf->legacy_last_added_umac.addr, mac_addr); vf->legacy_last_added_umac.time_modified = jiffies; } } /** * ice_vc_add_mac_addr - attempt to add the MAC address passed in * @vf: pointer to the VF info * @vsi: pointer to the VF's VSI * @vc_ether_addr: VIRTCHNL MAC address structure used to add MAC */ static int ice_vc_add_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi, struct virtchnl_ether_addr *vc_ether_addr) { struct device *dev = ice_pf_to_dev(vf->pf); u8 *mac_addr = vc_ether_addr->addr; int ret; /* device MAC already added */ if (ether_addr_equal(mac_addr, vf->dev_lan_addr)) return 0; if (is_unicast_ether_addr(mac_addr) && !ice_can_vf_change_mac(vf)) { dev_err(dev, "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n"); return -EPERM; } ret = ice_fltr_add_mac(vsi, mac_addr, ICE_FWD_TO_VSI); if (ret == -EEXIST) { dev_dbg(dev, "MAC %pM already exists for VF %d\n", mac_addr, vf->vf_id); /* don't return since we might need to update * the primary MAC in ice_vfhw_mac_add() below */ } else if (ret) { dev_err(dev, "Failed to add MAC %pM for VF %d\n, error %d\n", mac_addr, vf->vf_id, ret); return ret; } else { vf->num_mac++; } ice_vfhw_mac_add(vf, vc_ether_addr); return ret; } /** * ice_is_legacy_umac_expired - check if last added legacy unicast MAC expired * @last_added_umac: structure used to check expiration */ static bool ice_is_legacy_umac_expired(struct ice_time_mac *last_added_umac) { #define ICE_LEGACY_VF_MAC_CHANGE_EXPIRE_TIME msecs_to_jiffies(3000) return time_is_before_jiffies(last_added_umac->time_modified + ICE_LEGACY_VF_MAC_CHANGE_EXPIRE_TIME); } /** * ice_update_legacy_cached_mac - update cached hardware MAC for legacy VF * @vf: VF to update * @vc_ether_addr: structure from VIRTCHNL with MAC to check * * only update cached hardware MAC for legacy VF drivers on delete * because we cannot guarantee order/type of MAC from the VF driver */ static void ice_update_legacy_cached_mac(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr) { if (!ice_is_vc_addr_legacy(vc_ether_addr) || ice_is_legacy_umac_expired(&vf->legacy_last_added_umac)) return; ether_addr_copy(vf->dev_lan_addr, vf->legacy_last_added_umac.addr); ether_addr_copy(vf->hw_lan_addr, vf->legacy_last_added_umac.addr); } /** * ice_vfhw_mac_del - update the VF's cached hardware MAC if allowed * @vf: VF to update * @vc_ether_addr: structure from VIRTCHNL with MAC to delete */ static void ice_vfhw_mac_del(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr) { u8 *mac_addr = vc_ether_addr->addr; if (!is_valid_ether_addr(mac_addr) || !ether_addr_equal(vf->dev_lan_addr, mac_addr)) return; /* allow the device MAC to be repopulated in the add flow and don't * clear the hardware MAC (i.e. hw_lan_addr) here as that is meant * to be persistent on VM reboot and across driver unload/load, which * won't work if we clear the hardware MAC here */ eth_zero_addr(vf->dev_lan_addr); ice_update_legacy_cached_mac(vf, vc_ether_addr); } /** * ice_vc_del_mac_addr - attempt to delete the MAC address passed in * @vf: pointer to the VF info * @vsi: pointer to the VF's VSI * @vc_ether_addr: VIRTCHNL MAC address structure used to delete MAC */ static int ice_vc_del_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi, struct virtchnl_ether_addr *vc_ether_addr) { struct device *dev = ice_pf_to_dev(vf->pf); u8 *mac_addr = vc_ether_addr->addr; int status; if (!ice_can_vf_change_mac(vf) && ether_addr_equal(vf->dev_lan_addr, mac_addr)) return 0; status = ice_fltr_remove_mac(vsi, mac_addr, ICE_FWD_TO_VSI); if (status == -ENOENT) { dev_err(dev, "MAC %pM does not exist for VF %d\n", mac_addr, vf->vf_id); return -ENOENT; } else if (status) { dev_err(dev, "Failed to delete MAC %pM for VF %d, error %d\n", mac_addr, vf->vf_id, status); return -EIO; } ice_vfhw_mac_del(vf, vc_ether_addr); vf->num_mac--; return 0; } /** * ice_vc_handle_mac_addr_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @set: true if MAC filters are being set, false otherwise * * add guest MAC address filter */ static int ice_vc_handle_mac_addr_msg(struct ice_vf *vf, u8 *msg, bool set) { int (*ice_vc_cfg_mac) (struct ice_vf *vf, struct ice_vsi *vsi, struct virtchnl_ether_addr *virtchnl_ether_addr); enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_ether_addr_list *al = (struct virtchnl_ether_addr_list *)msg; struct ice_pf *pf = vf->pf; enum virtchnl_ops vc_op; struct ice_vsi *vsi; int i; if (set) { vc_op = VIRTCHNL_OP_ADD_ETH_ADDR; ice_vc_cfg_mac = ice_vc_add_mac_addr; } else { vc_op = VIRTCHNL_OP_DEL_ETH_ADDR; ice_vc_cfg_mac = ice_vc_del_mac_addr; } if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) || !ice_vc_isvalid_vsi_id(vf, al->vsi_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto handle_mac_exit; } /* If this VF is not privileged, then we can't add more than a * limited number of addresses. Check to make sure that the * additions do not push us over the limit. */ if (set && !ice_is_vf_trusted(vf) && (vf->num_mac + al->num_elements) > ICE_MAX_MACADDR_PER_VF) { dev_err(ice_pf_to_dev(pf), "Can't add more MAC addresses, because VF-%d is not trusted, switch the VF to trusted mode in order to add more functionalities\n", vf->vf_id); v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto handle_mac_exit; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto handle_mac_exit; } for (i = 0; i < al->num_elements; i++) { u8 *mac_addr = al->list[i].addr; int result; if (is_broadcast_ether_addr(mac_addr) || is_zero_ether_addr(mac_addr)) continue; result = ice_vc_cfg_mac(vf, vsi, &al->list[i]); if (result == -EEXIST || result == -ENOENT) { continue; } else if (result) { v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR; goto handle_mac_exit; } } handle_mac_exit: /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, vc_op, v_ret, NULL, 0); } /** * ice_vc_add_mac_addr_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * add guest MAC address filter */ static int ice_vc_add_mac_addr_msg(struct ice_vf *vf, u8 *msg) { return ice_vc_handle_mac_addr_msg(vf, msg, true); } /** * ice_vc_del_mac_addr_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * remove guest MAC address filter */ static int ice_vc_del_mac_addr_msg(struct ice_vf *vf, u8 *msg) { return ice_vc_handle_mac_addr_msg(vf, msg, false); } /** * ice_vc_request_qs_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * VFs get a default number of queues but can use this message to request a * different number. If the request is successful, PF will reset the VF and * return 0. If unsuccessful, PF will send message informing VF of number of * available queue pairs via virtchnl message response to VF. */ static int ice_vc_request_qs_msg(struct ice_vf *vf, u8 *msg) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_vf_res_request *vfres = (struct virtchnl_vf_res_request *)msg; u16 req_queues = vfres->num_queue_pairs; struct ice_pf *pf = vf->pf; u16 max_allowed_vf_queues; u16 tx_rx_queue_left; struct device *dev; u16 cur_queues; dev = ice_pf_to_dev(pf); if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } cur_queues = vf->num_vf_qs; tx_rx_queue_left = min_t(u16, ice_get_avail_txq_count(pf), ice_get_avail_rxq_count(pf)); max_allowed_vf_queues = tx_rx_queue_left + cur_queues; if (!req_queues) { dev_err(dev, "VF %d tried to request 0 queues. Ignoring.\n", vf->vf_id); } else if (req_queues > ICE_MAX_RSS_QS_PER_VF) { dev_err(dev, "VF %d tried to request more than %d queues.\n", vf->vf_id, ICE_MAX_RSS_QS_PER_VF); vfres->num_queue_pairs = ICE_MAX_RSS_QS_PER_VF; } else if (req_queues > cur_queues && req_queues - cur_queues > tx_rx_queue_left) { dev_warn(dev, "VF %d requested %u more queues, but only %u left.\n", vf->vf_id, req_queues - cur_queues, tx_rx_queue_left); vfres->num_queue_pairs = min_t(u16, max_allowed_vf_queues, ICE_MAX_RSS_QS_PER_VF); } else { /* request is successful, then reset VF */ vf->num_req_qs = req_queues; ice_reset_vf(vf, ICE_VF_RESET_NOTIFY); dev_info(dev, "VF %d granted request of %u queues.\n", vf->vf_id, req_queues); return 0; } error_param: /* send the response to the VF */ return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES, v_ret, (u8 *)vfres, sizeof(*vfres)); } /** * ice_vf_vlan_offload_ena - determine if capabilities support VLAN offloads * @caps: VF driver negotiated capabilities * * Return true if VIRTCHNL_VF_OFFLOAD_VLAN capability is set, else return false */ static bool ice_vf_vlan_offload_ena(u32 caps) { return !!(caps & VIRTCHNL_VF_OFFLOAD_VLAN); } /** * ice_is_vlan_promisc_allowed - check if VLAN promiscuous config is allowed * @vf: VF used to determine if VLAN promiscuous config is allowed */ static bool ice_is_vlan_promisc_allowed(struct ice_vf *vf) { if ((test_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states) || test_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states)) && test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, vf->pf->flags)) return true; return false; } /** * ice_vf_ena_vlan_promisc - Enable Tx/Rx VLAN promiscuous for the VLAN * @vsi: VF's VSI used to enable VLAN promiscuous mode * @vlan: VLAN used to enable VLAN promiscuous * * This function should only be called if VLAN promiscuous mode is allowed, * which can be determined via ice_is_vlan_promisc_allowed(). */ static int ice_vf_ena_vlan_promisc(struct ice_vsi *vsi, struct ice_vlan *vlan) { u8 promisc_m = ICE_PROMISC_VLAN_TX | ICE_PROMISC_VLAN_RX; int status; status = ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx, promisc_m, vlan->vid); if (status && status != -EEXIST) return status; return 0; } /** * ice_vf_dis_vlan_promisc - Disable Tx/Rx VLAN promiscuous for the VLAN * @vsi: VF's VSI used to disable VLAN promiscuous mode for * @vlan: VLAN used to disable VLAN promiscuous * * This function should only be called if VLAN promiscuous mode is allowed, * which can be determined via ice_is_vlan_promisc_allowed(). */ static int ice_vf_dis_vlan_promisc(struct ice_vsi *vsi, struct ice_vlan *vlan) { u8 promisc_m = ICE_PROMISC_VLAN_TX | ICE_PROMISC_VLAN_RX; int status; status = ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx, promisc_m, vlan->vid); if (status && status != -ENOENT) return status; return 0; } /** * ice_vf_has_max_vlans - check if VF already has the max allowed VLAN filters * @vf: VF to check against * @vsi: VF's VSI * * If the VF is trusted then the VF is allowed to add as many VLANs as it * wants to, so return false. * * When the VF is untrusted compare the number of non-zero VLANs + 1 to the max * allowed VLANs for an untrusted VF. Return the result of this comparison. */ static bool ice_vf_has_max_vlans(struct ice_vf *vf, struct ice_vsi *vsi) { if (ice_is_vf_trusted(vf)) return false; #define ICE_VF_ADDED_VLAN_ZERO_FLTRS 1 return ((ice_vsi_num_non_zero_vlans(vsi) + ICE_VF_ADDED_VLAN_ZERO_FLTRS) >= ICE_MAX_VLAN_PER_VF); } /** * ice_vc_process_vlan_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * @add_v: Add VLAN if true, otherwise delete VLAN * * Process virtchnl op to add or remove programmed guest VLAN ID */ static int ice_vc_process_vlan_msg(struct ice_vf *vf, u8 *msg, bool add_v) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_vlan_filter_list *vfl = (struct virtchnl_vlan_filter_list *)msg; struct ice_pf *pf = vf->pf; bool vlan_promisc = false; struct ice_vsi *vsi; struct device *dev; int status = 0; int i; dev = ice_pf_to_dev(pf); if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!ice_vf_vlan_offload_ena(vf->driver_caps)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!ice_vc_isvalid_vsi_id(vf, vfl->vsi_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } for (i = 0; i < vfl->num_elements; i++) { if (vfl->vlan_id[i] >= VLAN_N_VID) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; dev_err(dev, "invalid VF VLAN id %d\n", vfl->vlan_id[i]); goto error_param; } } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (add_v && ice_vf_has_max_vlans(vf, vsi)) { dev_info(dev, "VF-%d is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n", vf->vf_id); /* There is no need to let VF know about being not trusted, * so we can just return success message here */ goto error_param; } /* in DVM a VF can add/delete inner VLAN filters when * VIRTCHNL_VF_OFFLOAD_VLAN is negotiated, so only reject in SVM */ if (ice_vf_is_port_vlan_ena(vf) && !ice_is_dvm_ena(&pf->hw)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } /* in DVM VLAN promiscuous is based on the outer VLAN, which would be * the port VLAN if VIRTCHNL_VF_OFFLOAD_VLAN was negotiated, so only * allow vlan_promisc = true in SVM and if no port VLAN is configured */ vlan_promisc = ice_is_vlan_promisc_allowed(vf) && !ice_is_dvm_ena(&pf->hw) && !ice_vf_is_port_vlan_ena(vf); if (add_v) { for (i = 0; i < vfl->num_elements; i++) { u16 vid = vfl->vlan_id[i]; struct ice_vlan vlan; if (ice_vf_has_max_vlans(vf, vsi)) { dev_info(dev, "VF-%d is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n", vf->vf_id); /* There is no need to let VF know about being * not trusted, so we can just return success * message here as well. */ goto error_param; } /* we add VLAN 0 by default for each VF so we can enable * Tx VLAN anti-spoof without triggering MDD events so * we don't need to add it again here */ if (!vid) continue; vlan = ICE_VLAN(ETH_P_8021Q, vid, 0); status = vsi->inner_vlan_ops.add_vlan(vsi, &vlan); if (status) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } /* Enable VLAN filtering on first non-zero VLAN */ if (!vlan_promisc && vid && !ice_is_dvm_ena(&pf->hw)) { if (vf->spoofchk) { status = vsi->inner_vlan_ops.ena_tx_filtering(vsi); if (status) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; dev_err(dev, "Enable VLAN anti-spoofing on VLAN ID: %d failed error-%d\n", vid, status); goto error_param; } } if (vsi->inner_vlan_ops.ena_rx_filtering(vsi)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; dev_err(dev, "Enable VLAN pruning on VLAN ID: %d failed error-%d\n", vid, status); goto error_param; } } else if (vlan_promisc) { status = ice_vf_ena_vlan_promisc(vsi, &vlan); if (status) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; dev_err(dev, "Enable Unicast/multicast promiscuous mode on VLAN ID:%d failed error-%d\n", vid, status); } } } } else { /* In case of non_trusted VF, number of VLAN elements passed * to PF for removal might be greater than number of VLANs * filter programmed for that VF - So, use actual number of * VLANS added earlier with add VLAN opcode. In order to avoid * removing VLAN that doesn't exist, which result to sending * erroneous failed message back to the VF */ int num_vf_vlan; num_vf_vlan = vsi->num_vlan; for (i = 0; i < vfl->num_elements && i < num_vf_vlan; i++) { u16 vid = vfl->vlan_id[i]; struct ice_vlan vlan; /* we add VLAN 0 by default for each VF so we can enable * Tx VLAN anti-spoof without triggering MDD events so * we don't want a VIRTCHNL request to remove it */ if (!vid) continue; vlan = ICE_VLAN(ETH_P_8021Q, vid, 0); status = vsi->inner_vlan_ops.del_vlan(vsi, &vlan); if (status) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } /* Disable VLAN filtering when only VLAN 0 is left */ if (!ice_vsi_has_non_zero_vlans(vsi)) { vsi->inner_vlan_ops.dis_tx_filtering(vsi); vsi->inner_vlan_ops.dis_rx_filtering(vsi); } if (vlan_promisc) ice_vf_dis_vlan_promisc(vsi, &vlan); } } error_param: /* send the response to the VF */ if (add_v) return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, v_ret, NULL, 0); else return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, v_ret, NULL, 0); } /** * ice_vc_add_vlan_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * Add and program guest VLAN ID */ static int ice_vc_add_vlan_msg(struct ice_vf *vf, u8 *msg) { return ice_vc_process_vlan_msg(vf, msg, true); } /** * ice_vc_remove_vlan_msg * @vf: pointer to the VF info * @msg: pointer to the msg buffer * * remove programmed guest VLAN ID */ static int ice_vc_remove_vlan_msg(struct ice_vf *vf, u8 *msg) { return ice_vc_process_vlan_msg(vf, msg, false); } /** * ice_vsi_is_rxq_crc_strip_dis - check if Rx queue CRC strip is disabled or not * @vsi: pointer to the VF VSI info */ static bool ice_vsi_is_rxq_crc_strip_dis(struct ice_vsi *vsi) { unsigned int i; ice_for_each_alloc_rxq(vsi, i) if (vsi->rx_rings[i]->flags & ICE_RX_FLAGS_CRC_STRIP_DIS) return true; return false; } /** * ice_vc_ena_vlan_stripping * @vf: pointer to the VF info * * Enable VLAN header stripping for a given VF */ static int ice_vc_ena_vlan_stripping(struct ice_vf *vf) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!ice_vf_vlan_offload_ena(vf->driver_caps)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (vsi->inner_vlan_ops.ena_stripping(vsi, ETH_P_8021Q)) v_ret = VIRTCHNL_STATUS_ERR_PARAM; else vf->vlan_strip_ena |= ICE_INNER_VLAN_STRIP_ENA; error_param: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING, v_ret, NULL, 0); } /** * ice_vc_dis_vlan_stripping * @vf: pointer to the VF info * * Disable VLAN header stripping for a given VF */ static int ice_vc_dis_vlan_stripping(struct ice_vf *vf) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (!ice_vf_vlan_offload_ena(vf->driver_caps)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto error_param; } if (vsi->inner_vlan_ops.dis_stripping(vsi)) v_ret = VIRTCHNL_STATUS_ERR_PARAM; else vf->vlan_strip_ena &= ~ICE_INNER_VLAN_STRIP_ENA; error_param: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING, v_ret, NULL, 0); } /** * ice_vc_get_rss_hena - return the RSS HENA bits allowed by the hardware * @vf: pointer to the VF info */ static int ice_vc_get_rss_hena(struct ice_vf *vf) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_rss_hena *vrh = NULL; int len = 0, ret; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto err; } if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) { dev_err(ice_pf_to_dev(vf->pf), "RSS not supported by PF\n"); v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto err; } len = sizeof(struct virtchnl_rss_hena); vrh = kzalloc(len, GFP_KERNEL); if (!vrh) { v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY; len = 0; goto err; } vrh->hena = ICE_DEFAULT_RSS_HENA; err: /* send the response back to the VF */ ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS, v_ret, (u8 *)vrh, len); kfree(vrh); return ret; } /** * ice_vc_set_rss_hena - set RSS HENA bits for the VF * @vf: pointer to the VF info * @msg: pointer to the msg buffer */ static int ice_vc_set_rss_hena(struct ice_vf *vf, u8 *msg) { struct virtchnl_rss_hena *vrh = (struct virtchnl_rss_hena *)msg; enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct ice_pf *pf = vf->pf; struct ice_vsi *vsi; struct device *dev; int status; dev = ice_pf_to_dev(pf); if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto err; } if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { dev_err(dev, "RSS not supported by PF\n"); v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto err; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto err; } /* clear all previously programmed RSS configuration to allow VF drivers * the ability to customize the RSS configuration and/or completely * disable RSS */ status = ice_rem_vsi_rss_cfg(&pf->hw, vsi->idx); if (status && !vrh->hena) { /* only report failure to clear the current RSS configuration if * that was clearly the VF's intention (i.e. vrh->hena = 0) */ v_ret = ice_err_to_virt_err(status); goto err; } else if (status) { /* allow the VF to update the RSS configuration even on failure * to clear the current RSS confguration in an attempt to keep * RSS in a working state */ dev_warn(dev, "Failed to clear the RSS configuration for VF %u\n", vf->vf_id); } if (vrh->hena) { status = ice_add_avf_rss_cfg(&pf->hw, vsi, vrh->hena); v_ret = ice_err_to_virt_err(status); } /* send the response to the VF */ err: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, v_ret, NULL, 0); } /** * ice_vc_query_rxdid - query RXDID supported by DDP package * @vf: pointer to VF info * * Called from VF to query a bitmap of supported flexible * descriptor RXDIDs of a DDP package. */ static int ice_vc_query_rxdid(struct ice_vf *vf) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_supported_rxdids *rxdid = NULL; struct ice_hw *hw = &vf->pf->hw; struct ice_pf *pf = vf->pf; int len = 0; int ret, i; u32 regval; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto err; } if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto err; } len = sizeof(struct virtchnl_supported_rxdids); rxdid = kzalloc(len, GFP_KERNEL); if (!rxdid) { v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY; len = 0; goto err; } /* RXDIDs supported by DDP package can be read from the register * to get the supported RXDID bitmap. But the legacy 32byte RXDID * is not listed in DDP package, add it in the bitmap manually. * Legacy 16byte descriptor is not supported. */ rxdid->supported_rxdids |= BIT(ICE_RXDID_LEGACY_1); for (i = ICE_RXDID_FLEX_NIC; i < ICE_FLEX_DESC_RXDID_MAX_NUM; i++) { regval = rd32(hw, GLFLXP_RXDID_FLAGS(i, 0)); if ((regval >> GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_S) & GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_M) rxdid->supported_rxdids |= BIT(i); } pf->supported_rxdids = rxdid->supported_rxdids; err: ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_SUPPORTED_RXDIDS, v_ret, (u8 *)rxdid, len); kfree(rxdid); return ret; } /** * ice_vf_init_vlan_stripping - enable/disable VLAN stripping on initialization * @vf: VF to enable/disable VLAN stripping for on initialization * * Set the default for VLAN stripping based on whether a port VLAN is configured * and the current VLAN mode of the device. */ static int ice_vf_init_vlan_stripping(struct ice_vf *vf) { struct ice_vsi *vsi = ice_get_vf_vsi(vf); vf->vlan_strip_ena = 0; if (!vsi) return -EINVAL; /* don't modify stripping if port VLAN is configured in SVM since the * port VLAN is based on the inner/single VLAN in SVM */ if (ice_vf_is_port_vlan_ena(vf) && !ice_is_dvm_ena(&vsi->back->hw)) return 0; if (ice_vf_vlan_offload_ena(vf->driver_caps)) { int err; err = vsi->inner_vlan_ops.ena_stripping(vsi, ETH_P_8021Q); if (!err) vf->vlan_strip_ena |= ICE_INNER_VLAN_STRIP_ENA; return err; } return vsi->inner_vlan_ops.dis_stripping(vsi); } static u16 ice_vc_get_max_vlan_fltrs(struct ice_vf *vf) { if (vf->trusted) return VLAN_N_VID; else return ICE_MAX_VLAN_PER_VF; } /** * ice_vf_outer_vlan_not_allowed - check if outer VLAN can be used * @vf: VF that being checked for * * When the device is in double VLAN mode, check whether or not the outer VLAN * is allowed. */ static bool ice_vf_outer_vlan_not_allowed(struct ice_vf *vf) { if (ice_vf_is_port_vlan_ena(vf)) return true; return false; } /** * ice_vc_set_dvm_caps - set VLAN capabilities when the device is in DVM * @vf: VF that capabilities are being set for * @caps: VLAN capabilities to populate * * Determine VLAN capabilities support based on whether a port VLAN is * configured. If a port VLAN is configured then the VF should use the inner * filtering/offload capabilities since the port VLAN is using the outer VLAN * capabilies. */ static void ice_vc_set_dvm_caps(struct ice_vf *vf, struct virtchnl_vlan_caps *caps) { struct virtchnl_vlan_supported_caps *supported_caps; if (ice_vf_outer_vlan_not_allowed(vf)) { /* until support for inner VLAN filtering is added when a port * VLAN is configured, only support software offloaded inner * VLANs when a port VLAN is confgured in DVM */ supported_caps = &caps->filtering.filtering_support; supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED; supported_caps = &caps->offloads.stripping_support; supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 | VIRTCHNL_VLAN_TOGGLE | VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1; supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED; supported_caps = &caps->offloads.insertion_support; supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 | VIRTCHNL_VLAN_TOGGLE | VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1; supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED; caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100; caps->offloads.ethertype_match = VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION; } else { supported_caps = &caps->filtering.filtering_support; supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED; supported_caps->outer = VIRTCHNL_VLAN_ETHERTYPE_8100 | VIRTCHNL_VLAN_ETHERTYPE_88A8 | VIRTCHNL_VLAN_ETHERTYPE_9100 | VIRTCHNL_VLAN_ETHERTYPE_AND; caps->filtering.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100 | VIRTCHNL_VLAN_ETHERTYPE_88A8 | VIRTCHNL_VLAN_ETHERTYPE_9100; supported_caps = &caps->offloads.stripping_support; supported_caps->inner = VIRTCHNL_VLAN_TOGGLE | VIRTCHNL_VLAN_ETHERTYPE_8100 | VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1; supported_caps->outer = VIRTCHNL_VLAN_TOGGLE | VIRTCHNL_VLAN_ETHERTYPE_8100 | VIRTCHNL_VLAN_ETHERTYPE_88A8 | VIRTCHNL_VLAN_ETHERTYPE_9100 | VIRTCHNL_VLAN_ETHERTYPE_XOR | VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2; supported_caps = &caps->offloads.insertion_support; supported_caps->inner = VIRTCHNL_VLAN_TOGGLE | VIRTCHNL_VLAN_ETHERTYPE_8100 | VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1; supported_caps->outer = VIRTCHNL_VLAN_TOGGLE | VIRTCHNL_VLAN_ETHERTYPE_8100 | VIRTCHNL_VLAN_ETHERTYPE_88A8 | VIRTCHNL_VLAN_ETHERTYPE_9100 | VIRTCHNL_VLAN_ETHERTYPE_XOR | VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2; caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100; caps->offloads.ethertype_match = VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION; } caps->filtering.max_filters = ice_vc_get_max_vlan_fltrs(vf); } /** * ice_vc_set_svm_caps - set VLAN capabilities when the device is in SVM * @vf: VF that capabilities are being set for * @caps: VLAN capabilities to populate * * Determine VLAN capabilities support based on whether a port VLAN is * configured. If a port VLAN is configured then the VF does not have any VLAN * filtering or offload capabilities since the port VLAN is using the inner VLAN * capabilities in single VLAN mode (SVM). Otherwise allow the VF to use inner * VLAN fitlering and offload capabilities. */ static void ice_vc_set_svm_caps(struct ice_vf *vf, struct virtchnl_vlan_caps *caps) { struct virtchnl_vlan_supported_caps *supported_caps; if (ice_vf_is_port_vlan_ena(vf)) { supported_caps = &caps->filtering.filtering_support; supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED; supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED; supported_caps = &caps->offloads.stripping_support; supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED; supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED; supported_caps = &caps->offloads.insertion_support; supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED; supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED; caps->offloads.ethertype_init = VIRTCHNL_VLAN_UNSUPPORTED; caps->offloads.ethertype_match = VIRTCHNL_VLAN_UNSUPPORTED; caps->filtering.max_filters = 0; } else { supported_caps = &caps->filtering.filtering_support; supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100; supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED; caps->filtering.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100; supported_caps = &caps->offloads.stripping_support; supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 | VIRTCHNL_VLAN_TOGGLE | VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1; supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED; supported_caps = &caps->offloads.insertion_support; supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 | VIRTCHNL_VLAN_TOGGLE | VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1; supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED; caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100; caps->offloads.ethertype_match = VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION; caps->filtering.max_filters = ice_vc_get_max_vlan_fltrs(vf); } } /** * ice_vc_get_offload_vlan_v2_caps - determine VF's VLAN capabilities * @vf: VF to determine VLAN capabilities for * * This will only be called if the VF and PF successfully negotiated * VIRTCHNL_VF_OFFLOAD_VLAN_V2. * * Set VLAN capabilities based on the current VLAN mode and whether a port VLAN * is configured or not. */ static int ice_vc_get_offload_vlan_v2_caps(struct ice_vf *vf) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_vlan_caps *caps = NULL; int err, len = 0; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } caps = kzalloc(sizeof(*caps), GFP_KERNEL); if (!caps) { v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY; goto out; } len = sizeof(*caps); if (ice_is_dvm_ena(&vf->pf->hw)) ice_vc_set_dvm_caps(vf, caps); else ice_vc_set_svm_caps(vf, caps); /* store negotiated caps to prevent invalid VF messages */ memcpy(&vf->vlan_v2_caps, caps, sizeof(*caps)); out: err = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS, v_ret, (u8 *)caps, len); kfree(caps); return err; } /** * ice_vc_validate_vlan_tpid - validate VLAN TPID * @filtering_caps: negotiated/supported VLAN filtering capabilities * @tpid: VLAN TPID used for validation * * Convert the VLAN TPID to a VIRTCHNL_VLAN_ETHERTYPE_* and then compare against * the negotiated/supported filtering caps to see if the VLAN TPID is valid. */ static bool ice_vc_validate_vlan_tpid(u16 filtering_caps, u16 tpid) { enum virtchnl_vlan_support vlan_ethertype = VIRTCHNL_VLAN_UNSUPPORTED; switch (tpid) { case ETH_P_8021Q: vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_8100; break; case ETH_P_8021AD: vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_88A8; break; case ETH_P_QINQ1: vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_9100; break; } if (!(filtering_caps & vlan_ethertype)) return false; return true; } /** * ice_vc_is_valid_vlan - validate the virtchnl_vlan * @vc_vlan: virtchnl_vlan to validate * * If the VLAN TCI and VLAN TPID are 0, then this filter is invalid, so return * false. Otherwise return true. */ static bool ice_vc_is_valid_vlan(struct virtchnl_vlan *vc_vlan) { if (!vc_vlan->tci || !vc_vlan->tpid) return false; return true; } /** * ice_vc_validate_vlan_filter_list - validate the filter list from the VF * @vfc: negotiated/supported VLAN filtering capabilities * @vfl: VLAN filter list from VF to validate * * Validate all of the filters in the VLAN filter list from the VF. If any of * the checks fail then return false. Otherwise return true. */ static bool ice_vc_validate_vlan_filter_list(struct virtchnl_vlan_filtering_caps *vfc, struct virtchnl_vlan_filter_list_v2 *vfl) { u16 i; if (!vfl->num_elements) return false; for (i = 0; i < vfl->num_elements; i++) { struct virtchnl_vlan_supported_caps *filtering_support = &vfc->filtering_support; struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i]; struct virtchnl_vlan *outer = &vlan_fltr->outer; struct virtchnl_vlan *inner = &vlan_fltr->inner; if ((ice_vc_is_valid_vlan(outer) && filtering_support->outer == VIRTCHNL_VLAN_UNSUPPORTED) || (ice_vc_is_valid_vlan(inner) && filtering_support->inner == VIRTCHNL_VLAN_UNSUPPORTED)) return false; if ((outer->tci_mask && !(filtering_support->outer & VIRTCHNL_VLAN_FILTER_MASK)) || (inner->tci_mask && !(filtering_support->inner & VIRTCHNL_VLAN_FILTER_MASK))) return false; if (((outer->tci & VLAN_PRIO_MASK) && !(filtering_support->outer & VIRTCHNL_VLAN_PRIO)) || ((inner->tci & VLAN_PRIO_MASK) && !(filtering_support->inner & VIRTCHNL_VLAN_PRIO))) return false; if ((ice_vc_is_valid_vlan(outer) && !ice_vc_validate_vlan_tpid(filtering_support->outer, outer->tpid)) || (ice_vc_is_valid_vlan(inner) && !ice_vc_validate_vlan_tpid(filtering_support->inner, inner->tpid))) return false; } return true; } /** * ice_vc_to_vlan - transform from struct virtchnl_vlan to struct ice_vlan * @vc_vlan: struct virtchnl_vlan to transform */ static struct ice_vlan ice_vc_to_vlan(struct virtchnl_vlan *vc_vlan) { struct ice_vlan vlan = { 0 }; vlan.prio = FIELD_GET(VLAN_PRIO_MASK, vc_vlan->tci); vlan.vid = vc_vlan->tci & VLAN_VID_MASK; vlan.tpid = vc_vlan->tpid; return vlan; } /** * ice_vc_vlan_action - action to perform on the virthcnl_vlan * @vsi: VF's VSI used to perform the action * @vlan_action: function to perform the action with (i.e. add/del) * @vlan: VLAN filter to perform the action with */ static int ice_vc_vlan_action(struct ice_vsi *vsi, int (*vlan_action)(struct ice_vsi *, struct ice_vlan *), struct ice_vlan *vlan) { int err; err = vlan_action(vsi, vlan); if (err) return err; return 0; } /** * ice_vc_del_vlans - delete VLAN(s) from the virtchnl filter list * @vf: VF used to delete the VLAN(s) * @vsi: VF's VSI used to delete the VLAN(s) * @vfl: virthchnl filter list used to delete the filters */ static int ice_vc_del_vlans(struct ice_vf *vf, struct ice_vsi *vsi, struct virtchnl_vlan_filter_list_v2 *vfl) { bool vlan_promisc = ice_is_vlan_promisc_allowed(vf); int err; u16 i; for (i = 0; i < vfl->num_elements; i++) { struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i]; struct virtchnl_vlan *vc_vlan; vc_vlan = &vlan_fltr->outer; if (ice_vc_is_valid_vlan(vc_vlan)) { struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan); err = ice_vc_vlan_action(vsi, vsi->outer_vlan_ops.del_vlan, &vlan); if (err) return err; if (vlan_promisc) ice_vf_dis_vlan_promisc(vsi, &vlan); /* Disable VLAN filtering when only VLAN 0 is left */ if (!ice_vsi_has_non_zero_vlans(vsi) && ice_is_dvm_ena(&vsi->back->hw)) { err = vsi->outer_vlan_ops.dis_tx_filtering(vsi); if (err) return err; } } vc_vlan = &vlan_fltr->inner; if (ice_vc_is_valid_vlan(vc_vlan)) { struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan); err = ice_vc_vlan_action(vsi, vsi->inner_vlan_ops.del_vlan, &vlan); if (err) return err; /* no support for VLAN promiscuous on inner VLAN unless * we are in Single VLAN Mode (SVM) */ if (!ice_is_dvm_ena(&vsi->back->hw)) { if (vlan_promisc) ice_vf_dis_vlan_promisc(vsi, &vlan); /* Disable VLAN filtering when only VLAN 0 is left */ if (!ice_vsi_has_non_zero_vlans(vsi)) { err = vsi->inner_vlan_ops.dis_tx_filtering(vsi); if (err) return err; } } } } return 0; } /** * ice_vc_remove_vlan_v2_msg - virtchnl handler for VIRTCHNL_OP_DEL_VLAN_V2 * @vf: VF the message was received from * @msg: message received from the VF */ static int ice_vc_remove_vlan_v2_msg(struct ice_vf *vf, u8 *msg) { struct virtchnl_vlan_filter_list_v2 *vfl = (struct virtchnl_vlan_filter_list_v2 *)msg; enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct ice_vsi *vsi; if (!ice_vc_validate_vlan_filter_list(&vf->vlan_v2_caps.filtering, vfl)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } if (!ice_vc_isvalid_vsi_id(vf, vfl->vport_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } if (ice_vc_del_vlans(vf, vsi, vfl)) v_ret = VIRTCHNL_STATUS_ERR_PARAM; out: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN_V2, v_ret, NULL, 0); } /** * ice_vc_add_vlans - add VLAN(s) from the virtchnl filter list * @vf: VF used to add the VLAN(s) * @vsi: VF's VSI used to add the VLAN(s) * @vfl: virthchnl filter list used to add the filters */ static int ice_vc_add_vlans(struct ice_vf *vf, struct ice_vsi *vsi, struct virtchnl_vlan_filter_list_v2 *vfl) { bool vlan_promisc = ice_is_vlan_promisc_allowed(vf); int err; u16 i; for (i = 0; i < vfl->num_elements; i++) { struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i]; struct virtchnl_vlan *vc_vlan; vc_vlan = &vlan_fltr->outer; if (ice_vc_is_valid_vlan(vc_vlan)) { struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan); err = ice_vc_vlan_action(vsi, vsi->outer_vlan_ops.add_vlan, &vlan); if (err) return err; if (vlan_promisc) { err = ice_vf_ena_vlan_promisc(vsi, &vlan); if (err) return err; } /* Enable VLAN filtering on first non-zero VLAN */ if (vf->spoofchk && vlan.vid && ice_is_dvm_ena(&vsi->back->hw)) { err = vsi->outer_vlan_ops.ena_tx_filtering(vsi); if (err) return err; } } vc_vlan = &vlan_fltr->inner; if (ice_vc_is_valid_vlan(vc_vlan)) { struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan); err = ice_vc_vlan_action(vsi, vsi->inner_vlan_ops.add_vlan, &vlan); if (err) return err; /* no support for VLAN promiscuous on inner VLAN unless * we are in Single VLAN Mode (SVM) */ if (!ice_is_dvm_ena(&vsi->back->hw)) { if (vlan_promisc) { err = ice_vf_ena_vlan_promisc(vsi, &vlan); if (err) return err; } /* Enable VLAN filtering on first non-zero VLAN */ if (vf->spoofchk && vlan.vid) { err = vsi->inner_vlan_ops.ena_tx_filtering(vsi); if (err) return err; } } } } return 0; } /** * ice_vc_validate_add_vlan_filter_list - validate add filter list from the VF * @vsi: VF VSI used to get number of existing VLAN filters * @vfc: negotiated/supported VLAN filtering capabilities * @vfl: VLAN filter list from VF to validate * * Validate all of the filters in the VLAN filter list from the VF during the * VIRTCHNL_OP_ADD_VLAN_V2 opcode. If any of the checks fail then return false. * Otherwise return true. */ static bool ice_vc_validate_add_vlan_filter_list(struct ice_vsi *vsi, struct virtchnl_vlan_filtering_caps *vfc, struct virtchnl_vlan_filter_list_v2 *vfl) { u16 num_requested_filters = ice_vsi_num_non_zero_vlans(vsi) + vfl->num_elements; if (num_requested_filters > vfc->max_filters) return false; return ice_vc_validate_vlan_filter_list(vfc, vfl); } /** * ice_vc_add_vlan_v2_msg - virtchnl handler for VIRTCHNL_OP_ADD_VLAN_V2 * @vf: VF the message was received from * @msg: message received from the VF */ static int ice_vc_add_vlan_v2_msg(struct ice_vf *vf, u8 *msg) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_vlan_filter_list_v2 *vfl = (struct virtchnl_vlan_filter_list_v2 *)msg; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } if (!ice_vc_isvalid_vsi_id(vf, vfl->vport_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } if (!ice_vc_validate_add_vlan_filter_list(vsi, &vf->vlan_v2_caps.filtering, vfl)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } if (ice_vc_add_vlans(vf, vsi, vfl)) v_ret = VIRTCHNL_STATUS_ERR_PARAM; out: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN_V2, v_ret, NULL, 0); } /** * ice_vc_valid_vlan_setting - validate VLAN setting * @negotiated_settings: negotiated VLAN settings during VF init * @ethertype_setting: ethertype(s) requested for the VLAN setting */ static bool ice_vc_valid_vlan_setting(u32 negotiated_settings, u32 ethertype_setting) { if (ethertype_setting && !(negotiated_settings & ethertype_setting)) return false; /* only allow a single VIRTCHNL_VLAN_ETHERTYPE if * VIRTHCNL_VLAN_ETHERTYPE_AND is not negotiated/supported */ if (!(negotiated_settings & VIRTCHNL_VLAN_ETHERTYPE_AND) && hweight32(ethertype_setting) > 1) return false; /* ability to modify the VLAN setting was not negotiated */ if (!(negotiated_settings & VIRTCHNL_VLAN_TOGGLE)) return false; return true; } /** * ice_vc_valid_vlan_setting_msg - validate the VLAN setting message * @caps: negotiated VLAN settings during VF init * @msg: message to validate * * Used to validate any VLAN virtchnl message sent as a * virtchnl_vlan_setting structure. Validates the message against the * negotiated/supported caps during VF driver init. */ static bool ice_vc_valid_vlan_setting_msg(struct virtchnl_vlan_supported_caps *caps, struct virtchnl_vlan_setting *msg) { if ((!msg->outer_ethertype_setting && !msg->inner_ethertype_setting) || (!caps->outer && !caps->inner)) return false; if (msg->outer_ethertype_setting && !ice_vc_valid_vlan_setting(caps->outer, msg->outer_ethertype_setting)) return false; if (msg->inner_ethertype_setting && !ice_vc_valid_vlan_setting(caps->inner, msg->inner_ethertype_setting)) return false; return true; } /** * ice_vc_get_tpid - transform from VIRTCHNL_VLAN_ETHERTYPE_* to VLAN TPID * @ethertype_setting: VIRTCHNL_VLAN_ETHERTYPE_* used to get VLAN TPID * @tpid: VLAN TPID to populate */ static int ice_vc_get_tpid(u32 ethertype_setting, u16 *tpid) { switch (ethertype_setting) { case VIRTCHNL_VLAN_ETHERTYPE_8100: *tpid = ETH_P_8021Q; break; case VIRTCHNL_VLAN_ETHERTYPE_88A8: *tpid = ETH_P_8021AD; break; case VIRTCHNL_VLAN_ETHERTYPE_9100: *tpid = ETH_P_QINQ1; break; default: *tpid = 0; return -EINVAL; } return 0; } /** * ice_vc_ena_vlan_offload - enable VLAN offload based on the ethertype_setting * @vsi: VF's VSI used to enable the VLAN offload * @ena_offload: function used to enable the VLAN offload * @ethertype_setting: VIRTCHNL_VLAN_ETHERTYPE_* to enable offloads for */ static int ice_vc_ena_vlan_offload(struct ice_vsi *vsi, int (*ena_offload)(struct ice_vsi *vsi, u16 tpid), u32 ethertype_setting) { u16 tpid; int err; err = ice_vc_get_tpid(ethertype_setting, &tpid); if (err) return err; err = ena_offload(vsi, tpid); if (err) return err; return 0; } #define ICE_L2TSEL_QRX_CONTEXT_REG_IDX 3 #define ICE_L2TSEL_BIT_OFFSET 23 enum ice_l2tsel { ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND, ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG1, }; /** * ice_vsi_update_l2tsel - update l2tsel field for all Rx rings on this VSI * @vsi: VSI used to update l2tsel on * @l2tsel: l2tsel setting requested * * Use the l2tsel setting to update all of the Rx queue context bits for l2tsel. * This will modify which descriptor field the first offloaded VLAN will be * stripped into. */ static void ice_vsi_update_l2tsel(struct ice_vsi *vsi, enum ice_l2tsel l2tsel) { struct ice_hw *hw = &vsi->back->hw; u32 l2tsel_bit; int i; if (l2tsel == ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND) l2tsel_bit = 0; else l2tsel_bit = BIT(ICE_L2TSEL_BIT_OFFSET); for (i = 0; i < vsi->alloc_rxq; i++) { u16 pfq = vsi->rxq_map[i]; u32 qrx_context_offset; u32 regval; qrx_context_offset = QRX_CONTEXT(ICE_L2TSEL_QRX_CONTEXT_REG_IDX, pfq); regval = rd32(hw, qrx_context_offset); regval &= ~BIT(ICE_L2TSEL_BIT_OFFSET); regval |= l2tsel_bit; wr32(hw, qrx_context_offset, regval); } } /** * ice_vc_ena_vlan_stripping_v2_msg * @vf: VF the message was received from * @msg: message received from the VF * * virthcnl handler for VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2 */ static int ice_vc_ena_vlan_stripping_v2_msg(struct ice_vf *vf, u8 *msg) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_vlan_supported_caps *stripping_support; struct virtchnl_vlan_setting *strip_msg = (struct virtchnl_vlan_setting *)msg; u32 ethertype_setting; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } if (!ice_vc_isvalid_vsi_id(vf, strip_msg->vport_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } stripping_support = &vf->vlan_v2_caps.offloads.stripping_support; if (!ice_vc_valid_vlan_setting_msg(stripping_support, strip_msg)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } if (ice_vsi_is_rxq_crc_strip_dis(vsi)) { v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED; goto out; } ethertype_setting = strip_msg->outer_ethertype_setting; if (ethertype_setting) { if (ice_vc_ena_vlan_offload(vsi, vsi->outer_vlan_ops.ena_stripping, ethertype_setting)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } else { enum ice_l2tsel l2tsel = ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND; /* PF tells the VF that the outer VLAN tag is always * extracted to VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2 and * inner is always extracted to * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1. This is needed to * support outer stripping so the first tag always ends * up in L2TAG2_2ND and the second/inner tag, if * enabled, is extracted in L2TAG1. */ ice_vsi_update_l2tsel(vsi, l2tsel); vf->vlan_strip_ena |= ICE_OUTER_VLAN_STRIP_ENA; } } ethertype_setting = strip_msg->inner_ethertype_setting; if (ethertype_setting && ice_vc_ena_vlan_offload(vsi, vsi->inner_vlan_ops.ena_stripping, ethertype_setting)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } if (ethertype_setting) vf->vlan_strip_ena |= ICE_INNER_VLAN_STRIP_ENA; out: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2, v_ret, NULL, 0); } /** * ice_vc_dis_vlan_stripping_v2_msg * @vf: VF the message was received from * @msg: message received from the VF * * virthcnl handler for VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2 */ static int ice_vc_dis_vlan_stripping_v2_msg(struct ice_vf *vf, u8 *msg) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_vlan_supported_caps *stripping_support; struct virtchnl_vlan_setting *strip_msg = (struct virtchnl_vlan_setting *)msg; u32 ethertype_setting; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } if (!ice_vc_isvalid_vsi_id(vf, strip_msg->vport_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } stripping_support = &vf->vlan_v2_caps.offloads.stripping_support; if (!ice_vc_valid_vlan_setting_msg(stripping_support, strip_msg)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } ethertype_setting = strip_msg->outer_ethertype_setting; if (ethertype_setting) { if (vsi->outer_vlan_ops.dis_stripping(vsi)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } else { enum ice_l2tsel l2tsel = ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG1; /* PF tells the VF that the outer VLAN tag is always * extracted to VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2 and * inner is always extracted to * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1. This is needed to * support inner stripping while outer stripping is * disabled so that the first and only tag is extracted * in L2TAG1. */ ice_vsi_update_l2tsel(vsi, l2tsel); vf->vlan_strip_ena &= ~ICE_OUTER_VLAN_STRIP_ENA; } } ethertype_setting = strip_msg->inner_ethertype_setting; if (ethertype_setting && vsi->inner_vlan_ops.dis_stripping(vsi)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } if (ethertype_setting) vf->vlan_strip_ena &= ~ICE_INNER_VLAN_STRIP_ENA; out: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2, v_ret, NULL, 0); } /** * ice_vc_ena_vlan_insertion_v2_msg * @vf: VF the message was received from * @msg: message received from the VF * * virthcnl handler for VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2 */ static int ice_vc_ena_vlan_insertion_v2_msg(struct ice_vf *vf, u8 *msg) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_vlan_supported_caps *insertion_support; struct virtchnl_vlan_setting *insertion_msg = (struct virtchnl_vlan_setting *)msg; u32 ethertype_setting; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } if (!ice_vc_isvalid_vsi_id(vf, insertion_msg->vport_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } insertion_support = &vf->vlan_v2_caps.offloads.insertion_support; if (!ice_vc_valid_vlan_setting_msg(insertion_support, insertion_msg)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } ethertype_setting = insertion_msg->outer_ethertype_setting; if (ethertype_setting && ice_vc_ena_vlan_offload(vsi, vsi->outer_vlan_ops.ena_insertion, ethertype_setting)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } ethertype_setting = insertion_msg->inner_ethertype_setting; if (ethertype_setting && ice_vc_ena_vlan_offload(vsi, vsi->inner_vlan_ops.ena_insertion, ethertype_setting)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } out: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2, v_ret, NULL, 0); } /** * ice_vc_dis_vlan_insertion_v2_msg * @vf: VF the message was received from * @msg: message received from the VF * * virthcnl handler for VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2 */ static int ice_vc_dis_vlan_insertion_v2_msg(struct ice_vf *vf, u8 *msg) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_vlan_supported_caps *insertion_support; struct virtchnl_vlan_setting *insertion_msg = (struct virtchnl_vlan_setting *)msg; u32 ethertype_setting; struct ice_vsi *vsi; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } if (!ice_vc_isvalid_vsi_id(vf, insertion_msg->vport_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } insertion_support = &vf->vlan_v2_caps.offloads.insertion_support; if (!ice_vc_valid_vlan_setting_msg(insertion_support, insertion_msg)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } ethertype_setting = insertion_msg->outer_ethertype_setting; if (ethertype_setting && vsi->outer_vlan_ops.dis_insertion(vsi)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } ethertype_setting = insertion_msg->inner_ethertype_setting; if (ethertype_setting && vsi->inner_vlan_ops.dis_insertion(vsi)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto out; } out: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2, v_ret, NULL, 0); } static const struct ice_virtchnl_ops ice_virtchnl_dflt_ops = { .get_ver_msg = ice_vc_get_ver_msg, .get_vf_res_msg = ice_vc_get_vf_res_msg, .reset_vf = ice_vc_reset_vf_msg, .add_mac_addr_msg = ice_vc_add_mac_addr_msg, .del_mac_addr_msg = ice_vc_del_mac_addr_msg, .cfg_qs_msg = ice_vc_cfg_qs_msg, .ena_qs_msg = ice_vc_ena_qs_msg, .dis_qs_msg = ice_vc_dis_qs_msg, .request_qs_msg = ice_vc_request_qs_msg, .cfg_irq_map_msg = ice_vc_cfg_irq_map_msg, .config_rss_key = ice_vc_config_rss_key, .config_rss_lut = ice_vc_config_rss_lut, .config_rss_hfunc = ice_vc_config_rss_hfunc, .get_stats_msg = ice_vc_get_stats_msg, .cfg_promiscuous_mode_msg = ice_vc_cfg_promiscuous_mode_msg, .add_vlan_msg = ice_vc_add_vlan_msg, .remove_vlan_msg = ice_vc_remove_vlan_msg, .query_rxdid = ice_vc_query_rxdid, .get_rss_hena = ice_vc_get_rss_hena, .set_rss_hena_msg = ice_vc_set_rss_hena, .ena_vlan_stripping = ice_vc_ena_vlan_stripping, .dis_vlan_stripping = ice_vc_dis_vlan_stripping, .handle_rss_cfg_msg = ice_vc_handle_rss_cfg, .add_fdir_fltr_msg = ice_vc_add_fdir_fltr, .del_fdir_fltr_msg = ice_vc_del_fdir_fltr, .get_offload_vlan_v2_caps = ice_vc_get_offload_vlan_v2_caps, .add_vlan_v2_msg = ice_vc_add_vlan_v2_msg, .remove_vlan_v2_msg = ice_vc_remove_vlan_v2_msg, .ena_vlan_stripping_v2_msg = ice_vc_ena_vlan_stripping_v2_msg, .dis_vlan_stripping_v2_msg = ice_vc_dis_vlan_stripping_v2_msg, .ena_vlan_insertion_v2_msg = ice_vc_ena_vlan_insertion_v2_msg, .dis_vlan_insertion_v2_msg = ice_vc_dis_vlan_insertion_v2_msg, }; /** * ice_virtchnl_set_dflt_ops - Switch to default virtchnl ops * @vf: the VF to switch ops */ void ice_virtchnl_set_dflt_ops(struct ice_vf *vf) { vf->virtchnl_ops = &ice_virtchnl_dflt_ops; } /** * ice_vc_repr_add_mac * @vf: pointer to VF * @msg: virtchannel message * * When port representors are created, we do not add MAC rule * to firmware, we store it so that PF could report same * MAC as VF. */ static int ice_vc_repr_add_mac(struct ice_vf *vf, u8 *msg) { enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS; struct virtchnl_ether_addr_list *al = (struct virtchnl_ether_addr_list *)msg; struct ice_vsi *vsi; struct ice_pf *pf; int i; if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) || !ice_vc_isvalid_vsi_id(vf, al->vsi_id)) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto handle_mac_exit; } pf = vf->pf; vsi = ice_get_vf_vsi(vf); if (!vsi) { v_ret = VIRTCHNL_STATUS_ERR_PARAM; goto handle_mac_exit; } for (i = 0; i < al->num_elements; i++) { u8 *mac_addr = al->list[i].addr; if (!is_unicast_ether_addr(mac_addr) || ether_addr_equal(mac_addr, vf->hw_lan_addr)) continue; if (vf->pf_set_mac) { dev_err(ice_pf_to_dev(pf), "VF attempting to override administratively set MAC address\n"); v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED; goto handle_mac_exit; } ice_vfhw_mac_add(vf, &al->list[i]); vf->num_mac++; break; } handle_mac_exit: return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR, v_ret, NULL, 0); } /** * ice_vc_repr_del_mac - response with success for deleting MAC * @vf: pointer to VF * @msg: virtchannel message * * Respond with success to not break normal VF flow. * For legacy VF driver try to update cached MAC address. */ static int ice_vc_repr_del_mac(struct ice_vf __always_unused *vf, u8 __always_unused *msg) { struct virtchnl_ether_addr_list *al = (struct virtchnl_ether_addr_list *)msg; ice_update_legacy_cached_mac(vf, &al->list[0]); return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR, VIRTCHNL_STATUS_SUCCESS, NULL, 0); } static int ice_vc_repr_cfg_promiscuous_mode(struct ice_vf *vf, u8 __always_unused *msg) { dev_dbg(ice_pf_to_dev(vf->pf), "Can't config promiscuous mode in switchdev mode for VF %d\n", vf->vf_id); return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE, VIRTCHNL_STATUS_ERR_NOT_SUPPORTED, NULL, 0); } static const struct ice_virtchnl_ops ice_virtchnl_repr_ops = { .get_ver_msg = ice_vc_get_ver_msg, .get_vf_res_msg = ice_vc_get_vf_res_msg, .reset_vf = ice_vc_reset_vf_msg, .add_mac_addr_msg = ice_vc_repr_add_mac, .del_mac_addr_msg = ice_vc_repr_del_mac, .cfg_qs_msg = ice_vc_cfg_qs_msg, .ena_qs_msg = ice_vc_ena_qs_msg, .dis_qs_msg = ice_vc_dis_qs_msg, .request_qs_msg = ice_vc_request_qs_msg, .cfg_irq_map_msg = ice_vc_cfg_irq_map_msg, .config_rss_key = ice_vc_config_rss_key, .config_rss_lut = ice_vc_config_rss_lut, .config_rss_hfunc = ice_vc_config_rss_hfunc, .get_stats_msg = ice_vc_get_stats_msg, .cfg_promiscuous_mode_msg = ice_vc_repr_cfg_promiscuous_mode, .add_vlan_msg = ice_vc_add_vlan_msg, .remove_vlan_msg = ice_vc_remove_vlan_msg, .query_rxdid = ice_vc_query_rxdid, .get_rss_hena = ice_vc_get_rss_hena, .set_rss_hena_msg = ice_vc_set_rss_hena, .ena_vlan_stripping = ice_vc_ena_vlan_stripping, .dis_vlan_stripping = ice_vc_dis_vlan_stripping, .handle_rss_cfg_msg = ice_vc_handle_rss_cfg, .add_fdir_fltr_msg = ice_vc_add_fdir_fltr, .del_fdir_fltr_msg = ice_vc_del_fdir_fltr, .get_offload_vlan_v2_caps = ice_vc_get_offload_vlan_v2_caps, .add_vlan_v2_msg = ice_vc_add_vlan_v2_msg, .remove_vlan_v2_msg = ice_vc_remove_vlan_v2_msg, .ena_vlan_stripping_v2_msg = ice_vc_ena_vlan_stripping_v2_msg, .dis_vlan_stripping_v2_msg = ice_vc_dis_vlan_stripping_v2_msg, .ena_vlan_insertion_v2_msg = ice_vc_ena_vlan_insertion_v2_msg, .dis_vlan_insertion_v2_msg = ice_vc_dis_vlan_insertion_v2_msg, }; /** * ice_virtchnl_set_repr_ops - Switch to representor virtchnl ops * @vf: the VF to switch ops */ void ice_virtchnl_set_repr_ops(struct ice_vf *vf) { vf->virtchnl_ops = &ice_virtchnl_repr_ops; } /** * ice_is_malicious_vf - check if this vf might be overflowing mailbox * @vf: the VF to check * @mbxdata: data about the state of the mailbox * * Detect if a given VF might be malicious and attempting to overflow the PF * mailbox. If so, log a warning message and ignore this event. */ static bool ice_is_malicious_vf(struct ice_vf *vf, struct ice_mbx_data *mbxdata) { bool report_malvf = false; struct device *dev; struct ice_pf *pf; int status; pf = vf->pf; dev = ice_pf_to_dev(pf); if (test_bit(ICE_VF_STATE_DIS, vf->vf_states)) return vf->mbx_info.malicious; /* check to see if we have a newly malicious VF */ status = ice_mbx_vf_state_handler(&pf->hw, mbxdata, &vf->mbx_info, &report_malvf); if (status) dev_warn_ratelimited(dev, "Unable to check status of mailbox overflow for VF %u MAC %pM, status %d\n", vf->vf_id, vf->dev_lan_addr, status); if (report_malvf) { struct ice_vsi *pf_vsi = ice_get_main_vsi(pf); u8 zero_addr[ETH_ALEN] = {}; dev_warn(dev, "VF MAC %pM on PF MAC %pM is generating asynchronous messages and may be overflowing the PF message queue. Please see the Adapter User Guide for more information\n", vf->dev_lan_addr, pf_vsi ? pf_vsi->netdev->dev_addr : zero_addr); } return vf->mbx_info.malicious; } /** * ice_vc_process_vf_msg - Process request from VF * @pf: pointer to the PF structure * @event: pointer to the AQ event * @mbxdata: information used to detect VF attempting mailbox overflow * * called from the common asq/arq handler to * process request from VF */ void ice_vc_process_vf_msg(struct ice_pf *pf, struct ice_rq_event_info *event, struct ice_mbx_data *mbxdata) { u32 v_opcode = le32_to_cpu(event->desc.cookie_high); s16 vf_id = le16_to_cpu(event->desc.retval); const struct ice_virtchnl_ops *ops; u16 msglen = event->msg_len; u8 *msg = event->msg_buf; struct ice_vf *vf = NULL; struct device *dev; int err = 0; dev = ice_pf_to_dev(pf); vf = ice_get_vf_by_id(pf, vf_id); if (!vf) { dev_err(dev, "Unable to locate VF for message from VF ID %d, opcode %d, len %d\n", vf_id, v_opcode, msglen); return; } mutex_lock(&vf->cfg_lock); /* Check if the VF is trying to overflow the mailbox */ if (ice_is_malicious_vf(vf, mbxdata)) goto finish; /* Check if VF is disabled. */ if (test_bit(ICE_VF_STATE_DIS, vf->vf_states)) { err = -EPERM; goto error_handler; } ops = vf->virtchnl_ops; /* Perform basic checks on the msg */ err = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen); if (err) { if (err == VIRTCHNL_STATUS_ERR_PARAM) err = -EPERM; else err = -EINVAL; } error_handler: if (err) { ice_vc_send_msg_to_vf(vf, v_opcode, VIRTCHNL_STATUS_ERR_PARAM, NULL, 0); dev_err(dev, "Invalid message from VF %d, opcode %d, len %d, error %d\n", vf_id, v_opcode, msglen, err); goto finish; } if (!ice_vc_is_opcode_allowed(vf, v_opcode)) { ice_vc_send_msg_to_vf(vf, v_opcode, VIRTCHNL_STATUS_ERR_NOT_SUPPORTED, NULL, 0); goto finish; } switch (v_opcode) { case VIRTCHNL_OP_VERSION: err = ops->get_ver_msg(vf, msg); break; case VIRTCHNL_OP_GET_VF_RESOURCES: err = ops->get_vf_res_msg(vf, msg); if (ice_vf_init_vlan_stripping(vf)) dev_dbg(dev, "Failed to initialize VLAN stripping for VF %d\n", vf->vf_id); ice_vc_notify_vf_link_state(vf); break; case VIRTCHNL_OP_RESET_VF: ops->reset_vf(vf); break; case VIRTCHNL_OP_ADD_ETH_ADDR: err = ops->add_mac_addr_msg(vf, msg); break; case VIRTCHNL_OP_DEL_ETH_ADDR: err = ops->del_mac_addr_msg(vf, msg); break; case VIRTCHNL_OP_CONFIG_VSI_QUEUES: err = ops->cfg_qs_msg(vf, msg); break; case VIRTCHNL_OP_ENABLE_QUEUES: err = ops->ena_qs_msg(vf, msg); ice_vc_notify_vf_link_state(vf); break; case VIRTCHNL_OP_DISABLE_QUEUES: err = ops->dis_qs_msg(vf, msg); break; case VIRTCHNL_OP_REQUEST_QUEUES: err = ops->request_qs_msg(vf, msg); break; case VIRTCHNL_OP_CONFIG_IRQ_MAP: err = ops->cfg_irq_map_msg(vf, msg); break; case VIRTCHNL_OP_CONFIG_RSS_KEY: err = ops->config_rss_key(vf, msg); break; case VIRTCHNL_OP_CONFIG_RSS_LUT: err = ops->config_rss_lut(vf, msg); break; case VIRTCHNL_OP_CONFIG_RSS_HFUNC: err = ops->config_rss_hfunc(vf, msg); break; case VIRTCHNL_OP_GET_STATS: err = ops->get_stats_msg(vf, msg); break; case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE: err = ops->cfg_promiscuous_mode_msg(vf, msg); break; case VIRTCHNL_OP_ADD_VLAN: err = ops->add_vlan_msg(vf, msg); break; case VIRTCHNL_OP_DEL_VLAN: err = ops->remove_vlan_msg(vf, msg); break; case VIRTCHNL_OP_GET_SUPPORTED_RXDIDS: err = ops->query_rxdid(vf); break; case VIRTCHNL_OP_GET_RSS_HENA_CAPS: err = ops->get_rss_hena(vf); break; case VIRTCHNL_OP_SET_RSS_HENA: err = ops->set_rss_hena_msg(vf, msg); break; case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING: err = ops->ena_vlan_stripping(vf); break; case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING: err = ops->dis_vlan_stripping(vf); break; case VIRTCHNL_OP_ADD_FDIR_FILTER: err = ops->add_fdir_fltr_msg(vf, msg); break; case VIRTCHNL_OP_DEL_FDIR_FILTER: err = ops->del_fdir_fltr_msg(vf, msg); break; case VIRTCHNL_OP_ADD_RSS_CFG: err = ops->handle_rss_cfg_msg(vf, msg, true); break; case VIRTCHNL_OP_DEL_RSS_CFG: err = ops->handle_rss_cfg_msg(vf, msg, false); break; case VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS: err = ops->get_offload_vlan_v2_caps(vf); break; case VIRTCHNL_OP_ADD_VLAN_V2: err = ops->add_vlan_v2_msg(vf, msg); break; case VIRTCHNL_OP_DEL_VLAN_V2: err = ops->remove_vlan_v2_msg(vf, msg); break; case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2: err = ops->ena_vlan_stripping_v2_msg(vf, msg); break; case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2: err = ops->dis_vlan_stripping_v2_msg(vf, msg); break; case VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2: err = ops->ena_vlan_insertion_v2_msg(vf, msg); break; case VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2: err = ops->dis_vlan_insertion_v2_msg(vf, msg); break; case VIRTCHNL_OP_UNKNOWN: default: dev_err(dev, "Unsupported opcode %d from VF %d\n", v_opcode, vf_id); err = ice_vc_send_msg_to_vf(vf, v_opcode, VIRTCHNL_STATUS_ERR_NOT_SUPPORTED, NULL, 0); break; } if (err) { /* Helper function cares less about error return values here * as it is busy with pending work. */ dev_info(dev, "PF failed to honor VF %d, opcode %d, error %d\n", vf_id, v_opcode, err); } finish: mutex_unlock(&vf->cfg_lock); ice_put_vf(vf); } |