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_ETH_TYPE_F_OFFSET 12 12 #define ICE_ETH_VLAN_TCI_OFFSET 14 13 #define ICE_ETH_TYPE_VLAN_OFFSET 16 14 #define ICE_IPV4_SRC_ADDR_OFFSET 26 15 #define ICE_IPV4_DST_ADDR_OFFSET 30 16 #define ICE_IPV4_TCP_SRC_PORT_OFFSET 34 17 #define ICE_IPV4_TCP_DST_PORT_OFFSET 36 18 #define ICE_IPV4_UDP_SRC_PORT_OFFSET 34 19 #define ICE_IPV4_UDP_DST_PORT_OFFSET 36 20 #define ICE_IPV4_SCTP_SRC_PORT_OFFSET 34 21 #define ICE_IPV4_SCTP_DST_PORT_OFFSET 36 22 #define ICE_IPV4_PROTO_OFFSET 23 23 #define ICE_IPV6_SRC_ADDR_OFFSET 22 24 #define ICE_IPV6_DST_ADDR_OFFSET 38 25 #define ICE_IPV6_TCP_SRC_PORT_OFFSET 54 26 #define ICE_IPV6_TCP_DST_PORT_OFFSET 56 27 #define ICE_IPV6_UDP_SRC_PORT_OFFSET 54 28 #define ICE_IPV6_UDP_DST_PORT_OFFSET 56 29 #define ICE_IPV6_SCTP_SRC_PORT_OFFSET 54 30 #define ICE_IPV6_SCTP_DST_PORT_OFFSET 56 31 #define ICE_MAC_ETHTYPE_OFFSET 12 32 #define ICE_IPV4_TOS_OFFSET 15 33 #define ICE_IPV4_TTL_OFFSET 22 34 #define ICE_IPV6_TC_OFFSET 14 35 #define ICE_IPV6_HLIM_OFFSET 21 36 #define ICE_IPV6_PROTO_OFFSET 20 37 #define ICE_IPV4_GTPU_TEID_OFFSET 46 38 #define ICE_IPV4_GTPU_QFI_OFFSET 56 39 #define ICE_IPV4_L2TPV3_SESS_ID_OFFSET 34 40 #define ICE_IPV6_L2TPV3_SESS_ID_OFFSET 54 41 #define ICE_IPV4_ESP_SPI_OFFSET 34 42 #define ICE_IPV6_ESP_SPI_OFFSET 54 43 #define ICE_IPV4_AH_SPI_OFFSET 38 44 #define ICE_IPV6_AH_SPI_OFFSET 58 45 #define ICE_IPV4_NAT_T_ESP_SPI_OFFSET 42 46 #define ICE_IPV6_NAT_T_ESP_SPI_OFFSET 62 47 48 #define ICE_FDIR_MAX_FLTRS 16384 49 50 /* IP v4 has 2 flag bits that enable fragment processing: DF and MF. DF 51 * requests that the packet not be fragmented. MF indicates that a packet has 52 * been fragmented. 53 */ 54 #define ICE_FDIR_IPV4_PKT_FLAG_MF 0x20 55 56 #define ICE_FDIR_NO_QUEUE_IDX -1 57 58 enum ice_fltr_prgm_desc_dest { 59 ICE_FLTR_PRGM_DESC_DEST_DROP_PKT, 60 ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QINDEX, 61 ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QGROUP, 62 ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_OTHER, 63 }; 64 65 enum ice_fltr_prgm_desc_fd_status { 66 ICE_FLTR_PRGM_DESC_FD_STATUS_NONE, 67 ICE_FLTR_PRGM_DESC_FD_STATUS_FD_ID, 68 }; 69 70 /* Flow Director (FD) Filter Programming descriptor */ 71 struct ice_fd_fltr_desc_ctx { 72 u32 fdid; 73 u16 qindex; 74 u16 cnt_index; 75 u16 fd_vsi; 76 u16 flex_val; 77 u8 comp_q; 78 u8 comp_report; 79 u8 fd_space; 80 u8 cnt_ena; 81 u8 evict_ena; 82 u8 toq; 83 u8 toq_prio; 84 u8 dpu_recipe; 85 u8 drop; 86 u8 flex_prio; 87 u8 flex_mdid; 88 u8 dtype; 89 u8 pcmd; 90 u8 desc_prof_prio; 91 u8 desc_prof; 92 u8 swap; 93 u8 fdid_prio; 94 u8 fdid_mdid; 95 }; 96 97 #define ICE_FLTR_PRGM_FLEX_WORD_SIZE sizeof(__be16) 98 99 struct ice_rx_flow_userdef { 100 u16 flex_word; 101 u16 flex_offset; 102 u16 flex_fltr; 103 }; 104 105 struct ice_fdir_v4 { 106 __be32 dst_ip; 107 __be32 src_ip; 108 __be16 dst_port; 109 __be16 src_port; 110 __be32 l4_header; 111 __be32 sec_parm_idx; /* security parameter index */ 112 u8 tos; 113 u8 ip_ver; 114 u8 proto; 115 u8 ttl; 116 }; 117 118 #define ICE_IPV6_ADDR_LEN_AS_U32 4 119 120 struct ice_fdir_v6 { 121 __be32 dst_ip[ICE_IPV6_ADDR_LEN_AS_U32]; 122 __be32 src_ip[ICE_IPV6_ADDR_LEN_AS_U32]; 123 __be16 dst_port; 124 __be16 src_port; 125 __be32 l4_header; /* next header */ 126 __be32 sec_parm_idx; /* security parameter index */ 127 u8 tc; 128 u8 proto; 129 u8 hlim; 130 }; 131 132 struct ice_fdir_udp_gtp { 133 u8 flags; 134 u8 msg_type; 135 __be16 rsrvd_len; 136 __be32 teid; 137 __be16 rsrvd_seq_nbr; 138 u8 rsrvd_n_pdu_nbr; 139 u8 rsrvd_next_ext_type; 140 u8 rsvrd_ext_len; 141 u8 pdu_type:4, 142 spare:4; 143 u8 ppp:1, 144 rqi:1, 145 qfi:6; 146 u32 rsvrd; 147 u8 next_ext; 148 }; 149 150 struct ice_fdir_l2tpv3 { 151 __be32 session_id; 152 }; 153 154 struct ice_fdir_extra { 155 u8 dst_mac[ETH_ALEN]; /* dest MAC address */ 156 u8 src_mac[ETH_ALEN]; /* src MAC address */ 157 __be16 ether_type; /* for NON_IP_L2 */ 158 u32 usr_def[2]; /* user data */ 159 __be16 vlan_type; /* VLAN ethertype */ 160 __be16 vlan_tag; /* VLAN tag info */ 161 }; 162 163 struct ice_fdir_fltr { 164 struct list_head fltr_node; 165 enum ice_fltr_ptype flow_type; 166 167 struct ethhdr eth, eth_mask; 168 169 union { 170 struct ice_fdir_v4 v4; 171 struct ice_fdir_v6 v6; 172 } ip, mask; 173 174 struct ice_fdir_udp_gtp gtpu_data; 175 struct ice_fdir_udp_gtp gtpu_mask; 176 177 struct ice_fdir_l2tpv3 l2tpv3_data; 178 struct ice_fdir_l2tpv3 l2tpv3_mask; 179 180 struct ice_fdir_extra ext_data; 181 struct ice_fdir_extra ext_mask; 182 183 /* flex byte filter data */ 184 __be16 flex_word; 185 /* queue region size (=2^q_region) */ 186 u8 q_region; 187 u16 flex_offset; 188 u16 flex_fltr; 189 190 /* filter control */ 191 s16 q_index; 192 u16 orig_q_index; 193 u16 dest_vsi; 194 u8 dest_ctl; 195 u8 cnt_ena; 196 u8 fltr_status; 197 u16 cnt_index; 198 u32 fltr_id; 199 u8 fdid_prio; 200 u8 comp_report; 201 }; 202 203 /* Dummy packet filter definition structure */ 204 struct ice_fdir_base_pkt { 205 enum ice_fltr_ptype flow; 206 u16 pkt_len; 207 const u8 *pkt; 208 u16 tun_pkt_len; 209 const u8 *tun_pkt; 210 }; 211 212 struct ice_vsi; 213 214 int ice_alloc_fd_res_cntr(struct ice_hw *hw, u16 *cntr_id); 215 int ice_free_fd_res_cntr(struct ice_hw *hw, u16 cntr_id); 216 int ice_alloc_fd_guar_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr); 217 int ice_alloc_fd_shrd_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr); 218 void 219 ice_fdir_get_prgm_desc(struct ice_hw *hw, struct ice_fdir_fltr *input, 220 struct ice_fltr_desc *fdesc, bool add); 221 int 222 ice_fdir_get_gen_prgm_pkt(struct ice_hw *hw, struct ice_fdir_fltr *input, 223 u8 *pkt, bool frag, bool tun); 224 int ice_get_fdir_cnt_all(struct ice_hw *hw); 225 int ice_fdir_num_avail_fltr(struct ice_hw *hw, struct ice_vsi *vsi); 226 bool ice_fdir_is_dup_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input); 227 bool ice_fdir_has_frag(enum ice_fltr_ptype flow); 228 struct ice_fdir_fltr * 229 ice_fdir_find_fltr_by_idx(struct ice_hw *hw, u32 fltr_idx); 230 void 231 ice_fdir_update_cntrs(struct ice_hw *hw, enum ice_fltr_ptype flow, bool add); 232 void ice_fdir_list_add_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input); 233 #endif /* _ICE_FDIR_H_ */ 234