1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright (C) 2018-2020, Intel Corporation. */ 3 4 #ifndef _ICE_FDIR_H_ 5 #define _ICE_FDIR_H_ 6 7 #define ICE_FDIR_TUN_PKT_OFF 50 8 #define ICE_FDIR_MAX_RAW_PKT_SIZE (512 + ICE_FDIR_TUN_PKT_OFF) 9 10 /* macros for offsets into packets for flow director programming */ 11 #define ICE_IPV4_SRC_ADDR_OFFSET 26 12 #define ICE_IPV4_DST_ADDR_OFFSET 30 13 #define ICE_IPV4_TCP_SRC_PORT_OFFSET 34 14 #define ICE_IPV4_TCP_DST_PORT_OFFSET 36 15 #define ICE_IPV4_UDP_SRC_PORT_OFFSET 34 16 #define ICE_IPV4_UDP_DST_PORT_OFFSET 36 17 #define ICE_IPV4_SCTP_SRC_PORT_OFFSET 34 18 #define ICE_IPV4_SCTP_DST_PORT_OFFSET 36 19 #define ICE_IPV4_PROTO_OFFSET 23 20 #define ICE_IPV6_SRC_ADDR_OFFSET 22 21 #define ICE_IPV6_DST_ADDR_OFFSET 38 22 #define ICE_IPV6_TCP_SRC_PORT_OFFSET 54 23 #define ICE_IPV6_TCP_DST_PORT_OFFSET 56 24 #define ICE_IPV6_UDP_SRC_PORT_OFFSET 54 25 #define ICE_IPV6_UDP_DST_PORT_OFFSET 56 26 #define ICE_IPV6_SCTP_SRC_PORT_OFFSET 54 27 #define ICE_IPV6_SCTP_DST_PORT_OFFSET 56 28 #define ICE_MAC_ETHTYPE_OFFSET 12 29 #define ICE_IPV4_TOS_OFFSET 15 30 #define ICE_IPV4_TTL_OFFSET 22 31 #define ICE_IPV6_TC_OFFSET 14 32 #define ICE_IPV6_HLIM_OFFSET 21 33 #define ICE_IPV6_PROTO_OFFSET 20 34 #define ICE_IPV4_GTPU_TEID_OFFSET 46 35 #define ICE_IPV4_GTPU_QFI_OFFSET 56 36 #define ICE_IPV4_L2TPV3_SESS_ID_OFFSET 34 37 #define ICE_IPV6_L2TPV3_SESS_ID_OFFSET 54 38 #define ICE_IPV4_ESP_SPI_OFFSET 34 39 #define ICE_IPV6_ESP_SPI_OFFSET 54 40 #define ICE_IPV4_AH_SPI_OFFSET 38 41 #define ICE_IPV6_AH_SPI_OFFSET 58 42 #define ICE_IPV4_NAT_T_ESP_SPI_OFFSET 42 43 #define ICE_IPV6_NAT_T_ESP_SPI_OFFSET 62 44 45 #define ICE_FDIR_MAX_FLTRS 16384 46 47 /* IP v4 has 2 flag bits that enable fragment processing: DF and MF. DF 48 * requests that the packet not be fragmented. MF indicates that a packet has 49 * been fragmented. 50 */ 51 #define ICE_FDIR_IPV4_PKT_FLAG_MF 0x20 52 53 #define ICE_FDIR_NO_QUEUE_IDX -1 54 55 enum ice_fltr_prgm_desc_dest { 56 ICE_FLTR_PRGM_DESC_DEST_DROP_PKT, 57 ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QINDEX, 58 ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QGROUP, 59 ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_OTHER, 60 }; 61 62 enum ice_fltr_prgm_desc_fd_status { 63 ICE_FLTR_PRGM_DESC_FD_STATUS_NONE, 64 ICE_FLTR_PRGM_DESC_FD_STATUS_FD_ID, 65 }; 66 67 /* Flow Director (FD) Filter Programming descriptor */ 68 struct ice_fd_fltr_desc_ctx { 69 u32 fdid; 70 u16 qindex; 71 u16 cnt_index; 72 u16 fd_vsi; 73 u16 flex_val; 74 u8 comp_q; 75 u8 comp_report; 76 u8 fd_space; 77 u8 cnt_ena; 78 u8 evict_ena; 79 u8 toq; 80 u8 toq_prio; 81 u8 dpu_recipe; 82 u8 drop; 83 u8 flex_prio; 84 u8 flex_mdid; 85 u8 dtype; 86 u8 pcmd; 87 u8 desc_prof_prio; 88 u8 desc_prof; 89 u8 swap; 90 u8 fdid_prio; 91 u8 fdid_mdid; 92 }; 93 94 #define ICE_FLTR_PRGM_FLEX_WORD_SIZE sizeof(__be16) 95 96 struct ice_rx_flow_userdef { 97 u16 flex_word; 98 u16 flex_offset; 99 u16 flex_fltr; 100 }; 101 102 struct ice_fdir_v4 { 103 __be32 dst_ip; 104 __be32 src_ip; 105 __be16 dst_port; 106 __be16 src_port; 107 __be32 l4_header; 108 __be32 sec_parm_idx; /* security parameter index */ 109 u8 tos; 110 u8 ip_ver; 111 u8 proto; 112 u8 ttl; 113 }; 114 115 #define ICE_IPV6_ADDR_LEN_AS_U32 4 116 117 struct ice_fdir_v6 { 118 __be32 dst_ip[ICE_IPV6_ADDR_LEN_AS_U32]; 119 __be32 src_ip[ICE_IPV6_ADDR_LEN_AS_U32]; 120 __be16 dst_port; 121 __be16 src_port; 122 __be32 l4_header; /* next header */ 123 __be32 sec_parm_idx; /* security parameter index */ 124 u8 tc; 125 u8 proto; 126 u8 hlim; 127 }; 128 129 struct ice_fdir_udp_gtp { 130 u8 flags; 131 u8 msg_type; 132 __be16 rsrvd_len; 133 __be32 teid; 134 __be16 rsrvd_seq_nbr; 135 u8 rsrvd_n_pdu_nbr; 136 u8 rsrvd_next_ext_type; 137 u8 rsvrd_ext_len; 138 u8 pdu_type:4, 139 spare:4; 140 u8 ppp:1, 141 rqi:1, 142 qfi:6; 143 u32 rsvrd; 144 u8 next_ext; 145 }; 146 147 struct ice_fdir_l2tpv3 { 148 __be32 session_id; 149 }; 150 151 struct ice_fdir_extra { 152 u8 dst_mac[ETH_ALEN]; /* dest MAC address */ 153 u8 src_mac[ETH_ALEN]; /* src MAC address */ 154 __be16 ether_type; /* for NON_IP_L2 */ 155 u32 usr_def[2]; /* user data */ 156 __be16 vlan_type; /* VLAN ethertype */ 157 __be16 vlan_tag; /* VLAN tag info */ 158 }; 159 160 struct ice_fdir_fltr { 161 struct list_head fltr_node; 162 enum ice_fltr_ptype flow_type; 163 164 union { 165 struct ice_fdir_v4 v4; 166 struct ice_fdir_v6 v6; 167 } ip, mask; 168 169 struct ice_fdir_udp_gtp gtpu_data; 170 struct ice_fdir_udp_gtp gtpu_mask; 171 172 struct ice_fdir_l2tpv3 l2tpv3_data; 173 struct ice_fdir_l2tpv3 l2tpv3_mask; 174 175 struct ice_fdir_extra ext_data; 176 struct ice_fdir_extra ext_mask; 177 178 /* flex byte filter data */ 179 __be16 flex_word; 180 /* queue region size (=2^q_region) */ 181 u8 q_region; 182 u16 flex_offset; 183 u16 flex_fltr; 184 185 /* filter control */ 186 s16 q_index; 187 u16 orig_q_index; 188 u16 dest_vsi; 189 u8 dest_ctl; 190 u8 cnt_ena; 191 u8 fltr_status; 192 u16 cnt_index; 193 u32 fltr_id; 194 u8 fdid_prio; 195 u8 comp_report; 196 }; 197 198 /* Dummy packet filter definition structure */ 199 struct ice_fdir_base_pkt { 200 enum ice_fltr_ptype flow; 201 u16 pkt_len; 202 const u8 *pkt; 203 u16 tun_pkt_len; 204 const u8 *tun_pkt; 205 }; 206 207 struct ice_vsi; 208 209 int ice_alloc_fd_res_cntr(struct ice_hw *hw, u16 *cntr_id); 210 int ice_free_fd_res_cntr(struct ice_hw *hw, u16 cntr_id); 211 int ice_alloc_fd_guar_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr); 212 int ice_alloc_fd_shrd_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr); 213 void 214 ice_fdir_get_prgm_desc(struct ice_hw *hw, struct ice_fdir_fltr *input, 215 struct ice_fltr_desc *fdesc, bool add); 216 int 217 ice_fdir_get_gen_prgm_pkt(struct ice_hw *hw, struct ice_fdir_fltr *input, 218 u8 *pkt, bool frag, bool tun); 219 int ice_get_fdir_cnt_all(struct ice_hw *hw); 220 int ice_fdir_num_avail_fltr(struct ice_hw *hw, struct ice_vsi *vsi); 221 bool ice_fdir_is_dup_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input); 222 bool ice_fdir_has_frag(enum ice_fltr_ptype flow); 223 struct ice_fdir_fltr * 224 ice_fdir_find_fltr_by_idx(struct ice_hw *hw, u32 fltr_idx); 225 void 226 ice_fdir_update_cntrs(struct ice_hw *hw, enum ice_fltr_ptype flow, bool add); 227 void ice_fdir_list_add_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input); 228 #endif /* _ICE_FDIR_H_ */ 229