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 /* IP v4 has 2 flag bits that enable fragment processing: DF and MF. DF 29 * requests that the packet not be fragmented. MF indicates that a packet has 30 * been fragmented. 31 */ 32 #define ICE_FDIR_IPV4_PKT_FLAG_DF 0x20 33 34 enum ice_fltr_prgm_desc_dest { 35 ICE_FLTR_PRGM_DESC_DEST_DROP_PKT, 36 ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QINDEX, 37 }; 38 39 enum ice_fltr_prgm_desc_fd_status { 40 ICE_FLTR_PRGM_DESC_FD_STATUS_NONE, 41 ICE_FLTR_PRGM_DESC_FD_STATUS_FD_ID, 42 }; 43 44 /* Flow Director (FD) Filter Programming descriptor */ 45 struct ice_fd_fltr_desc_ctx { 46 u32 fdid; 47 u16 qindex; 48 u16 cnt_index; 49 u16 fd_vsi; 50 u16 flex_val; 51 u8 comp_q; 52 u8 comp_report; 53 u8 fd_space; 54 u8 cnt_ena; 55 u8 evict_ena; 56 u8 toq; 57 u8 toq_prio; 58 u8 dpu_recipe; 59 u8 drop; 60 u8 flex_prio; 61 u8 flex_mdid; 62 u8 dtype; 63 u8 pcmd; 64 u8 desc_prof_prio; 65 u8 desc_prof; 66 u8 swap; 67 u8 fdid_prio; 68 u8 fdid_mdid; 69 }; 70 71 struct ice_fdir_v4 { 72 __be32 dst_ip; 73 __be32 src_ip; 74 __be16 dst_port; 75 __be16 src_port; 76 __be32 l4_header; 77 __be32 sec_parm_idx; /* security parameter index */ 78 u8 tos; 79 u8 ip_ver; 80 u8 proto; 81 }; 82 83 struct ice_fdir_extra { 84 u8 dst_mac[ETH_ALEN]; /* dest MAC address */ 85 u32 usr_def[2]; /* user data */ 86 __be16 vlan_type; /* VLAN ethertype */ 87 __be16 vlan_tag; /* VLAN tag info */ 88 }; 89 90 struct ice_fdir_fltr { 91 struct list_head fltr_node; 92 enum ice_fltr_ptype flow_type; 93 94 struct ice_fdir_v4 ip; 95 struct ice_fdir_v4 mask; 96 97 struct ice_fdir_extra ext_data; 98 struct ice_fdir_extra ext_mask; 99 100 /* filter control */ 101 u16 q_index; 102 u16 dest_vsi; 103 u8 dest_ctl; 104 u8 fltr_status; 105 u16 cnt_index; 106 u32 fltr_id; 107 }; 108 109 /* Dummy packet filter definition structure */ 110 struct ice_fdir_base_pkt { 111 enum ice_fltr_ptype flow; 112 u16 pkt_len; 113 const u8 *pkt; 114 u16 tun_pkt_len; 115 const u8 *tun_pkt; 116 }; 117 118 enum ice_status ice_alloc_fd_res_cntr(struct ice_hw *hw, u16 *cntr_id); 119 enum ice_status ice_free_fd_res_cntr(struct ice_hw *hw, u16 cntr_id); 120 enum ice_status 121 ice_alloc_fd_guar_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr); 122 enum ice_status 123 ice_alloc_fd_shrd_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr); 124 void 125 ice_fdir_get_prgm_desc(struct ice_hw *hw, struct ice_fdir_fltr *input, 126 struct ice_fltr_desc *fdesc, bool add); 127 enum ice_status 128 ice_fdir_get_gen_prgm_pkt(struct ice_hw *hw, struct ice_fdir_fltr *input, 129 u8 *pkt, bool frag, bool tun); 130 int ice_get_fdir_cnt_all(struct ice_hw *hw); 131 bool ice_fdir_is_dup_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input); 132 bool ice_fdir_has_frag(enum ice_fltr_ptype flow); 133 struct ice_fdir_fltr * 134 ice_fdir_find_fltr_by_idx(struct ice_hw *hw, u32 fltr_idx); 135 void 136 ice_fdir_update_cntrs(struct ice_hw *hw, enum ice_fltr_ptype flow, bool add); 137 void ice_fdir_list_add_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input); 138 #endif /* _ICE_FDIR_H_ */ 139