1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright (C) 2019-2021, Intel Corporation. */ 3 4 #ifndef _ICE_TC_LIB_H_ 5 #define _ICE_TC_LIB_H_ 6 7 #define ICE_TC_FLWR_FIELD_DST_MAC BIT(0) 8 #define ICE_TC_FLWR_FIELD_SRC_MAC BIT(1) 9 #define ICE_TC_FLWR_FIELD_VLAN BIT(2) 10 #define ICE_TC_FLWR_FIELD_DEST_IPV4 BIT(3) 11 #define ICE_TC_FLWR_FIELD_SRC_IPV4 BIT(4) 12 #define ICE_TC_FLWR_FIELD_DEST_IPV6 BIT(5) 13 #define ICE_TC_FLWR_FIELD_SRC_IPV6 BIT(6) 14 #define ICE_TC_FLWR_FIELD_DEST_L4_PORT BIT(7) 15 #define ICE_TC_FLWR_FIELD_SRC_L4_PORT BIT(8) 16 #define ICE_TC_FLWR_FIELD_TENANT_ID BIT(9) 17 #define ICE_TC_FLWR_FIELD_ENC_DEST_IPV4 BIT(10) 18 #define ICE_TC_FLWR_FIELD_ENC_SRC_IPV4 BIT(11) 19 #define ICE_TC_FLWR_FIELD_ENC_DEST_IPV6 BIT(12) 20 #define ICE_TC_FLWR_FIELD_ENC_SRC_IPV6 BIT(13) 21 #define ICE_TC_FLWR_FIELD_ENC_DEST_L4_PORT BIT(14) 22 #define ICE_TC_FLWR_FIELD_ENC_SRC_L4_PORT BIT(15) 23 #define ICE_TC_FLWR_FIELD_ENC_DST_MAC BIT(16) 24 #define ICE_TC_FLWR_FIELD_ETH_TYPE_ID BIT(17) 25 #define ICE_TC_FLWR_FIELD_ENC_OPTS BIT(18) 26 #define ICE_TC_FLWR_FIELD_CVLAN BIT(19) 27 #define ICE_TC_FLWR_FIELD_PPPOE_SESSID BIT(20) 28 #define ICE_TC_FLWR_FIELD_PPP_PROTO BIT(21) 29 #define ICE_TC_FLWR_FIELD_IP_TOS BIT(22) 30 #define ICE_TC_FLWR_FIELD_IP_TTL BIT(23) 31 #define ICE_TC_FLWR_FIELD_ENC_IP_TOS BIT(24) 32 #define ICE_TC_FLWR_FIELD_ENC_IP_TTL BIT(25) 33 #define ICE_TC_FLWR_FIELD_L2TPV3_SESSID BIT(26) 34 #define ICE_TC_FLWR_FIELD_VLAN_PRIO BIT(27) 35 #define ICE_TC_FLWR_FIELD_CVLAN_PRIO BIT(28) 36 37 #define ICE_TC_FLOWER_MASK_32 0xFFFFFFFF 38 39 #define ICE_IPV6_HDR_TC_MASK 0xFF00000 40 41 struct ice_indr_block_priv { 42 struct net_device *netdev; 43 struct ice_netdev_priv *np; 44 struct list_head list; 45 }; 46 47 struct ice_tc_flower_action { 48 /* forward action specific params */ 49 union { 50 struct { 51 u32 tc_class; /* forward to hw_tc */ 52 u32 rsvd; 53 } tc; 54 struct { 55 u16 queue; /* forward to queue */ 56 /* To add filter in HW, absolute queue number in global 57 * space of queues (between 0...N) is needed 58 */ 59 u16 hw_queue; 60 } q; 61 } fwd; 62 enum ice_sw_fwd_act_type fltr_act; 63 }; 64 65 struct ice_tc_vlan_hdr { 66 __be16 vlan_id; /* Only last 12 bits valid */ 67 __be16 vlan_prio; /* Only last 3 bits valid (valid values: 0..7) */ 68 __be16 vlan_tpid; 69 }; 70 71 struct ice_tc_pppoe_hdr { 72 __be16 session_id; 73 __be16 ppp_proto; 74 }; 75 76 struct ice_tc_l2_hdr { 77 u8 dst_mac[ETH_ALEN]; 78 u8 src_mac[ETH_ALEN]; 79 __be16 n_proto; /* Ethernet Protocol */ 80 }; 81 82 struct ice_tc_l3_hdr { 83 u8 ip_proto; /* IPPROTO value */ 84 union { 85 struct { 86 struct in_addr dst_ip; 87 struct in_addr src_ip; 88 } v4; 89 struct { 90 struct in6_addr dst_ip6; 91 struct in6_addr src_ip6; 92 } v6; 93 } ip; 94 #define dst_ipv6 ip.v6.dst_ip6.s6_addr32 95 #define dst_ipv6_addr ip.v6.dst_ip6.s6_addr 96 #define src_ipv6 ip.v6.src_ip6.s6_addr32 97 #define src_ipv6_addr ip.v6.src_ip6.s6_addr 98 #define dst_ipv4 ip.v4.dst_ip.s_addr 99 #define src_ipv4 ip.v4.src_ip.s_addr 100 101 u8 tos; 102 u8 ttl; 103 }; 104 105 struct ice_tc_l2tpv3_hdr { 106 __be32 session_id; 107 }; 108 109 struct ice_tc_l4_hdr { 110 __be16 dst_port; 111 __be16 src_port; 112 }; 113 114 struct ice_tc_flower_lyr_2_4_hdrs { 115 /* L2 layer fields with their mask */ 116 struct ice_tc_l2_hdr l2_key; 117 struct ice_tc_l2_hdr l2_mask; 118 struct ice_tc_vlan_hdr vlan_hdr; 119 struct ice_tc_vlan_hdr cvlan_hdr; 120 struct ice_tc_pppoe_hdr pppoe_hdr; 121 struct ice_tc_l2tpv3_hdr l2tpv3_hdr; 122 /* L3 (IPv4[6]) layer fields with their mask */ 123 struct ice_tc_l3_hdr l3_key; 124 struct ice_tc_l3_hdr l3_mask; 125 126 /* L4 layer fields with their mask */ 127 struct ice_tc_l4_hdr l4_key; 128 struct ice_tc_l4_hdr l4_mask; 129 }; 130 131 enum ice_eswitch_fltr_direction { 132 ICE_ESWITCH_FLTR_INGRESS, 133 ICE_ESWITCH_FLTR_EGRESS, 134 }; 135 136 struct ice_tc_flower_fltr { 137 struct hlist_node tc_flower_node; 138 139 /* cookie becomes filter_rule_id if rule is added successfully */ 140 unsigned long cookie; 141 142 /* add_adv_rule returns information like recipe ID, rule_id. Store 143 * those values since they are needed to remove advanced rule 144 */ 145 u16 rid; 146 u16 rule_id; 147 /* VSI handle of the destination VSI (it could be main PF VSI, CHNL_VSI, 148 * VF VSI) 149 */ 150 u16 dest_vsi_handle; 151 /* ptr to destination VSI */ 152 struct ice_vsi *dest_vsi; 153 /* direction of fltr for eswitch use case */ 154 enum ice_eswitch_fltr_direction direction; 155 156 /* Parsed TC flower configuration params */ 157 struct ice_tc_flower_lyr_2_4_hdrs outer_headers; 158 struct ice_tc_flower_lyr_2_4_hdrs inner_headers; 159 struct ice_vsi *src_vsi; 160 __be32 tenant_id; 161 struct gtp_pdu_session_info gtp_pdu_info_keys; 162 struct gtp_pdu_session_info gtp_pdu_info_masks; 163 u32 flags; 164 u8 tunnel_type; 165 struct ice_tc_flower_action action; 166 167 /* cache ptr which is used wherever needed to communicate netlink 168 * messages 169 */ 170 struct netlink_ext_ack *extack; 171 }; 172 173 /** 174 * ice_is_chnl_fltr - is this a valid channel filter 175 * @f: Pointer to tc-flower filter 176 * 177 * Criteria to determine of given filter is valid channel filter 178 * or not is based on its destination. 179 * For forward to VSI action, if destination is valid hw_tc (aka tc_class) 180 * and in supported range of TCs for ADQ, then return true. 181 * For forward to queue, as long as dest_vsi is valid and it is of type 182 * VSI_CHNL (PF ADQ VSI is of type VSI_CHNL), return true. 183 * NOTE: For forward to queue, correct dest_vsi is still set in tc_fltr based 184 * on destination queue specified. 185 */ 186 static inline bool ice_is_chnl_fltr(struct ice_tc_flower_fltr *f) 187 { 188 if (f->action.fltr_act == ICE_FWD_TO_VSI) 189 return f->action.fwd.tc.tc_class >= ICE_CHNL_START_TC && 190 f->action.fwd.tc.tc_class < ICE_CHNL_MAX_TC; 191 else if (f->action.fltr_act == ICE_FWD_TO_Q) 192 return f->dest_vsi && f->dest_vsi->type == ICE_VSI_CHNL; 193 194 return false; 195 } 196 197 /** 198 * ice_chnl_dmac_fltr_cnt - DMAC based CHNL filter count 199 * @pf: Pointer to PF 200 */ 201 static inline int ice_chnl_dmac_fltr_cnt(struct ice_pf *pf) 202 { 203 return pf->num_dmac_chnl_fltrs; 204 } 205 206 int 207 ice_add_cls_flower(struct net_device *netdev, struct ice_vsi *vsi, 208 struct flow_cls_offload *cls_flower); 209 int 210 ice_del_cls_flower(struct ice_vsi *vsi, struct flow_cls_offload *cls_flower); 211 void ice_replay_tc_fltrs(struct ice_pf *pf); 212 bool ice_is_tunnel_supported(struct net_device *dev); 213 214 static inline bool ice_is_forward_action(enum ice_sw_fwd_act_type fltr_act) 215 { 216 switch (fltr_act) { 217 case ICE_FWD_TO_VSI: 218 case ICE_FWD_TO_Q: 219 return true; 220 default: 221 return false; 222 } 223 } 224 #endif /* _ICE_TC_LIB_H_ */ 225