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 26 struct ice_tc_flower_action { 27 u32 tc_class; 28 enum ice_sw_fwd_act_type fltr_act; 29 }; 30 31 struct ice_tc_vlan_hdr { 32 __be16 vlan_id; /* Only last 12 bits valid */ 33 u16 vlan_prio; /* Only last 3 bits valid (valid values: 0..7) */ 34 }; 35 36 struct ice_tc_l2_hdr { 37 u8 dst_mac[ETH_ALEN]; 38 u8 src_mac[ETH_ALEN]; 39 __be16 n_proto; /* Ethernet Protocol */ 40 }; 41 42 struct ice_tc_l3_hdr { 43 u8 ip_proto; /* IPPROTO value */ 44 union { 45 struct { 46 struct in_addr dst_ip; 47 struct in_addr src_ip; 48 } v4; 49 struct { 50 struct in6_addr dst_ip6; 51 struct in6_addr src_ip6; 52 } v6; 53 } ip; 54 #define dst_ipv6 ip.v6.dst_ip6.s6_addr32 55 #define dst_ipv6_addr ip.v6.dst_ip6.s6_addr 56 #define src_ipv6 ip.v6.src_ip6.s6_addr32 57 #define src_ipv6_addr ip.v6.src_ip6.s6_addr 58 #define dst_ipv4 ip.v4.dst_ip.s_addr 59 #define src_ipv4 ip.v4.src_ip.s_addr 60 61 u8 tos; 62 u8 ttl; 63 }; 64 65 struct ice_tc_l4_hdr { 66 __be16 dst_port; 67 __be16 src_port; 68 }; 69 70 struct ice_tc_flower_lyr_2_4_hdrs { 71 /* L2 layer fields with their mask */ 72 struct ice_tc_l2_hdr l2_key; 73 struct ice_tc_l2_hdr l2_mask; 74 struct ice_tc_vlan_hdr vlan_hdr; 75 /* L3 (IPv4[6]) layer fields with their mask */ 76 struct ice_tc_l3_hdr l3_key; 77 struct ice_tc_l3_hdr l3_mask; 78 79 /* L4 layer fields with their mask */ 80 struct ice_tc_l4_hdr l4_key; 81 struct ice_tc_l4_hdr l4_mask; 82 }; 83 84 enum ice_eswitch_fltr_direction { 85 ICE_ESWITCH_FLTR_INGRESS, 86 ICE_ESWITCH_FLTR_EGRESS, 87 }; 88 89 struct ice_tc_flower_fltr { 90 struct hlist_node tc_flower_node; 91 92 /* cookie becomes filter_rule_id if rule is added successfully */ 93 unsigned long cookie; 94 95 /* add_adv_rule returns information like recipe ID, rule_id. Store 96 * those values since they are needed to remove advanced rule 97 */ 98 u16 rid; 99 u16 rule_id; 100 /* this could be queue/vsi_idx (sw handle)/queue_group, depending upon 101 * destination type 102 */ 103 u16 dest_id; 104 /* if dest_id is vsi_idx, then need to store destination VSI ptr */ 105 struct ice_vsi *dest_vsi; 106 /* direction of fltr for eswitch use case */ 107 enum ice_eswitch_fltr_direction direction; 108 109 /* Parsed TC flower configuration params */ 110 struct ice_tc_flower_lyr_2_4_hdrs outer_headers; 111 struct ice_tc_flower_lyr_2_4_hdrs inner_headers; 112 struct ice_vsi *src_vsi; 113 __be32 tenant_id; 114 u32 flags; 115 struct ice_tc_flower_action action; 116 117 /* cache ptr which is used wherever needed to communicate netlink 118 * messages 119 */ 120 struct netlink_ext_ack *extack; 121 }; 122 123 /** 124 * ice_is_chnl_fltr - is this a valid channel filter 125 * @f: Pointer to tc-flower filter 126 * 127 * Criteria to determine of given filter is valid channel filter 128 * or not is based on its "destination". If destination is hw_tc (aka tc_class) 129 * and it is non-zero, then it is valid channel (aka ADQ) filter 130 */ 131 static inline bool ice_is_chnl_fltr(struct ice_tc_flower_fltr *f) 132 { 133 return !!f->action.tc_class; 134 } 135 136 /** 137 * ice_chnl_dmac_fltr_cnt - DMAC based CHNL filter count 138 * @pf: Pointer to PF 139 */ 140 static inline int ice_chnl_dmac_fltr_cnt(struct ice_pf *pf) 141 { 142 return pf->num_dmac_chnl_fltrs; 143 } 144 145 int 146 ice_add_cls_flower(struct net_device *netdev, struct ice_vsi *vsi, 147 struct flow_cls_offload *cls_flower); 148 int 149 ice_del_cls_flower(struct ice_vsi *vsi, struct flow_cls_offload *cls_flower); 150 void ice_replay_tc_fltrs(struct ice_pf *pf); 151 152 #endif /* _ICE_TC_LIB_H_ */ 153