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 enum ice_fltr_prgm_desc_dest { 54 ICE_FLTR_PRGM_DESC_DEST_DROP_PKT, 55 ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QINDEX, 56 ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QGROUP, 57 ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_OTHER, 58 }; 59 60 enum ice_fltr_prgm_desc_fd_status { 61 ICE_FLTR_PRGM_DESC_FD_STATUS_NONE, 62 ICE_FLTR_PRGM_DESC_FD_STATUS_FD_ID, 63 }; 64 65 /* Flow Director (FD) Filter Programming descriptor */ 66 struct ice_fd_fltr_desc_ctx { 67 u32 fdid; 68 u16 qindex; 69 u16 cnt_index; 70 u16 fd_vsi; 71 u16 flex_val; 72 u8 comp_q; 73 u8 comp_report; 74 u8 fd_space; 75 u8 cnt_ena; 76 u8 evict_ena; 77 u8 toq; 78 u8 toq_prio; 79 u8 dpu_recipe; 80 u8 drop; 81 u8 flex_prio; 82 u8 flex_mdid; 83 u8 dtype; 84 u8 pcmd; 85 u8 desc_prof_prio; 86 u8 desc_prof; 87 u8 swap; 88 u8 fdid_prio; 89 u8 fdid_mdid; 90 }; 91 92 #define ICE_FLTR_PRGM_FLEX_WORD_SIZE sizeof(__be16) 93 94 struct ice_rx_flow_userdef { 95 u16 flex_word; 96 u16 flex_offset; 97 u16 flex_fltr; 98 }; 99 100 struct ice_fdir_v4 { 101 __be32 dst_ip; 102 __be32 src_ip; 103 __be16 dst_port; 104 __be16 src_port; 105 __be32 l4_header; 106 __be32 sec_parm_idx; /* security parameter index */ 107 u8 tos; 108 u8 ip_ver; 109 u8 proto; 110 u8 ttl; 111 }; 112 113 #define ICE_IPV6_ADDR_LEN_AS_U32 4 114 115 struct ice_fdir_v6 { 116 __be32 dst_ip[ICE_IPV6_ADDR_LEN_AS_U32]; 117 __be32 src_ip[ICE_IPV6_ADDR_LEN_AS_U32]; 118 __be16 dst_port; 119 __be16 src_port; 120 __be32 l4_header; /* next header */ 121 __be32 sec_parm_idx; /* security parameter index */ 122 u8 tc; 123 u8 proto; 124 u8 hlim; 125 }; 126 127 struct ice_fdir_udp_gtp { 128 u8 flags; 129 u8 msg_type; 130 __be16 rsrvd_len; 131 __be32 teid; 132 __be16 rsrvd_seq_nbr; 133 u8 rsrvd_n_pdu_nbr; 134 u8 rsrvd_next_ext_type; 135 u8 rsvrd_ext_len; 136 u8 pdu_type:4, 137 spare:4; 138 u8 ppp:1, 139 rqi:1, 140 qfi:6; 141 u32 rsvrd; 142 u8 next_ext; 143 }; 144 145 struct ice_fdir_l2tpv3 { 146 __be32 session_id; 147 }; 148 149 struct ice_fdir_extra { 150 u8 dst_mac[ETH_ALEN]; /* dest MAC address */ 151 u8 src_mac[ETH_ALEN]; /* src MAC address */ 152 __be16 ether_type; /* for NON_IP_L2 */ 153 u32 usr_def[2]; /* user data */ 154 __be16 vlan_type; /* VLAN ethertype */ 155 __be16 vlan_tag; /* VLAN tag info */ 156 }; 157 158 struct ice_fdir_fltr { 159 struct list_head fltr_node; 160 enum ice_fltr_ptype flow_type; 161 162 union { 163 struct ice_fdir_v4 v4; 164 struct ice_fdir_v6 v6; 165 } ip, mask; 166 167 struct ice_fdir_udp_gtp gtpu_data; 168 struct ice_fdir_udp_gtp gtpu_mask; 169 170 struct ice_fdir_l2tpv3 l2tpv3_data; 171 struct ice_fdir_l2tpv3 l2tpv3_mask; 172 173 struct ice_fdir_extra ext_data; 174 struct ice_fdir_extra ext_mask; 175 176 /* flex byte filter data */ 177 __be16 flex_word; 178 /* queue region size (=2^q_region) */ 179 u8 q_region; 180 u16 flex_offset; 181 u16 flex_fltr; 182 183 /* filter control */ 184 u16 q_index; 185 u16 orig_q_index; 186 u16 dest_vsi; 187 u8 dest_ctl; 188 u8 cnt_ena; 189 u8 fltr_status; 190 u16 cnt_index; 191 u32 fltr_id; 192 u8 fdid_prio; 193 u8 comp_report; 194 }; 195 196 /* Dummy packet filter definition structure */ 197 struct ice_fdir_base_pkt { 198 enum ice_fltr_ptype flow; 199 u16 pkt_len; 200 const u8 *pkt; 201 u16 tun_pkt_len; 202 const u8 *tun_pkt; 203 }; 204 205 struct ice_vsi; 206 207 int ice_alloc_fd_res_cntr(struct ice_hw *hw, u16 *cntr_id); 208 int ice_free_fd_res_cntr(struct ice_hw *hw, u16 cntr_id); 209 int ice_alloc_fd_guar_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr); 210 int ice_alloc_fd_shrd_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr); 211 void 212 ice_fdir_get_prgm_desc(struct ice_hw *hw, struct ice_fdir_fltr *input, 213 struct ice_fltr_desc *fdesc, bool add); 214 int 215 ice_fdir_get_gen_prgm_pkt(struct ice_hw *hw, struct ice_fdir_fltr *input, 216 u8 *pkt, bool frag, bool tun); 217 int ice_get_fdir_cnt_all(struct ice_hw *hw); 218 int ice_fdir_num_avail_fltr(struct ice_hw *hw, struct ice_vsi *vsi); 219 bool ice_fdir_is_dup_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input); 220 bool ice_fdir_has_frag(enum ice_fltr_ptype flow); 221 struct ice_fdir_fltr * 222 ice_fdir_find_fltr_by_idx(struct ice_hw *hw, u32 fltr_idx); 223 void 224 ice_fdir_update_cntrs(struct ice_hw *hw, enum ice_fltr_ptype flow, bool add); 225 void ice_fdir_list_add_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input); 226 #endif /* _ICE_FDIR_H_ */ 227