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 35 #define ICE_FDIR_MAX_FLTRS 16384 36 37 /* IP v4 has 2 flag bits that enable fragment processing: DF and MF. DF 38 * requests that the packet not be fragmented. MF indicates that a packet has 39 * been fragmented. 40 */ 41 #define ICE_FDIR_IPV4_PKT_FLAG_DF 0x20 42 43 enum ice_fltr_prgm_desc_dest { 44 ICE_FLTR_PRGM_DESC_DEST_DROP_PKT, 45 ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QINDEX, 46 ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QGROUP, 47 ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_OTHER, 48 }; 49 50 enum ice_fltr_prgm_desc_fd_status { 51 ICE_FLTR_PRGM_DESC_FD_STATUS_NONE, 52 ICE_FLTR_PRGM_DESC_FD_STATUS_FD_ID, 53 }; 54 55 /* Flow Director (FD) Filter Programming descriptor */ 56 struct ice_fd_fltr_desc_ctx { 57 u32 fdid; 58 u16 qindex; 59 u16 cnt_index; 60 u16 fd_vsi; 61 u16 flex_val; 62 u8 comp_q; 63 u8 comp_report; 64 u8 fd_space; 65 u8 cnt_ena; 66 u8 evict_ena; 67 u8 toq; 68 u8 toq_prio; 69 u8 dpu_recipe; 70 u8 drop; 71 u8 flex_prio; 72 u8 flex_mdid; 73 u8 dtype; 74 u8 pcmd; 75 u8 desc_prof_prio; 76 u8 desc_prof; 77 u8 swap; 78 u8 fdid_prio; 79 u8 fdid_mdid; 80 }; 81 82 #define ICE_FLTR_PRGM_FLEX_WORD_SIZE sizeof(__be16) 83 84 struct ice_rx_flow_userdef { 85 u16 flex_word; 86 u16 flex_offset; 87 u16 flex_fltr; 88 }; 89 90 struct ice_fdir_v4 { 91 __be32 dst_ip; 92 __be32 src_ip; 93 __be16 dst_port; 94 __be16 src_port; 95 __be32 l4_header; 96 __be32 sec_parm_idx; /* security parameter index */ 97 u8 tos; 98 u8 ip_ver; 99 u8 proto; 100 u8 ttl; 101 }; 102 103 #define ICE_IPV6_ADDR_LEN_AS_U32 4 104 105 struct ice_fdir_v6 { 106 __be32 dst_ip[ICE_IPV6_ADDR_LEN_AS_U32]; 107 __be32 src_ip[ICE_IPV6_ADDR_LEN_AS_U32]; 108 __be16 dst_port; 109 __be16 src_port; 110 __be32 l4_header; /* next header */ 111 __be32 sec_parm_idx; /* security parameter index */ 112 u8 tc; 113 u8 proto; 114 u8 hlim; 115 }; 116 117 struct ice_fdir_extra { 118 u8 dst_mac[ETH_ALEN]; /* dest MAC address */ 119 u8 src_mac[ETH_ALEN]; /* src MAC address */ 120 __be16 ether_type; /* for NON_IP_L2 */ 121 u32 usr_def[2]; /* user data */ 122 __be16 vlan_type; /* VLAN ethertype */ 123 __be16 vlan_tag; /* VLAN tag info */ 124 }; 125 126 struct ice_fdir_fltr { 127 struct list_head fltr_node; 128 enum ice_fltr_ptype flow_type; 129 130 union { 131 struct ice_fdir_v4 v4; 132 struct ice_fdir_v6 v6; 133 } ip, mask; 134 135 struct ice_fdir_extra ext_data; 136 struct ice_fdir_extra ext_mask; 137 138 /* flex byte filter data */ 139 __be16 flex_word; 140 /* queue region size (=2^q_region) */ 141 u8 q_region; 142 u16 flex_offset; 143 u16 flex_fltr; 144 145 /* filter control */ 146 u16 q_index; 147 u16 dest_vsi; 148 u8 dest_ctl; 149 u8 cnt_ena; 150 u8 fltr_status; 151 u16 cnt_index; 152 u32 fltr_id; 153 u8 fdid_prio; 154 u8 comp_report; 155 }; 156 157 /* Dummy packet filter definition structure */ 158 struct ice_fdir_base_pkt { 159 enum ice_fltr_ptype flow; 160 u16 pkt_len; 161 const u8 *pkt; 162 u16 tun_pkt_len; 163 const u8 *tun_pkt; 164 }; 165 166 enum ice_status ice_alloc_fd_res_cntr(struct ice_hw *hw, u16 *cntr_id); 167 enum ice_status ice_free_fd_res_cntr(struct ice_hw *hw, u16 cntr_id); 168 enum ice_status 169 ice_alloc_fd_guar_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr); 170 enum ice_status 171 ice_alloc_fd_shrd_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr); 172 void 173 ice_fdir_get_prgm_desc(struct ice_hw *hw, struct ice_fdir_fltr *input, 174 struct ice_fltr_desc *fdesc, bool add); 175 enum ice_status 176 ice_fdir_get_gen_prgm_pkt(struct ice_hw *hw, struct ice_fdir_fltr *input, 177 u8 *pkt, bool frag, bool tun); 178 int ice_get_fdir_cnt_all(struct ice_hw *hw); 179 bool ice_fdir_is_dup_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input); 180 bool ice_fdir_has_frag(enum ice_fltr_ptype flow); 181 struct ice_fdir_fltr * 182 ice_fdir_find_fltr_by_idx(struct ice_hw *hw, u32 fltr_idx); 183 void 184 ice_fdir_update_cntrs(struct ice_hw *hw, enum ice_fltr_ptype flow, bool add); 185 void ice_fdir_list_add_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input); 186 #endif /* _ICE_FDIR_H_ */ 187