234 lines · c
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 508#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 1212#define ICE_ETH_VLAN_TCI_OFFSET 1413#define ICE_ETH_TYPE_VLAN_OFFSET 1614#define ICE_IPV4_SRC_ADDR_OFFSET 2615#define ICE_IPV4_DST_ADDR_OFFSET 3016#define ICE_IPV4_TCP_SRC_PORT_OFFSET 3417#define ICE_IPV4_TCP_DST_PORT_OFFSET 3618#define ICE_IPV4_UDP_SRC_PORT_OFFSET 3419#define ICE_IPV4_UDP_DST_PORT_OFFSET 3620#define ICE_IPV4_SCTP_SRC_PORT_OFFSET 3421#define ICE_IPV4_SCTP_DST_PORT_OFFSET 3622#define ICE_IPV4_PROTO_OFFSET 2323#define ICE_IPV6_SRC_ADDR_OFFSET 2224#define ICE_IPV6_DST_ADDR_OFFSET 3825#define ICE_IPV6_TCP_SRC_PORT_OFFSET 5426#define ICE_IPV6_TCP_DST_PORT_OFFSET 5627#define ICE_IPV6_UDP_SRC_PORT_OFFSET 5428#define ICE_IPV6_UDP_DST_PORT_OFFSET 5629#define ICE_IPV6_SCTP_SRC_PORT_OFFSET 5430#define ICE_IPV6_SCTP_DST_PORT_OFFSET 5631#define ICE_MAC_ETHTYPE_OFFSET 1232#define ICE_IPV4_TOS_OFFSET 1533#define ICE_IPV4_TTL_OFFSET 2234#define ICE_IPV6_TC_OFFSET 1435#define ICE_IPV6_HLIM_OFFSET 2136#define ICE_IPV6_PROTO_OFFSET 2037#define ICE_IPV4_GTPU_TEID_OFFSET 4638#define ICE_IPV4_GTPU_QFI_OFFSET 5639#define ICE_IPV4_L2TPV3_SESS_ID_OFFSET 3440#define ICE_IPV6_L2TPV3_SESS_ID_OFFSET 5441#define ICE_IPV4_ESP_SPI_OFFSET 3442#define ICE_IPV6_ESP_SPI_OFFSET 5443#define ICE_IPV4_AH_SPI_OFFSET 3844#define ICE_IPV6_AH_SPI_OFFSET 5845#define ICE_IPV4_NAT_T_ESP_SPI_OFFSET 4246#define ICE_IPV6_NAT_T_ESP_SPI_OFFSET 6247 48#define ICE_FDIR_MAX_FLTRS 1638449 50/* IP v4 has 2 flag bits that enable fragment processing: DF and MF. DF51 * requests that the packet not be fragmented. MF indicates that a packet has52 * been fragmented.53 */54#define ICE_FDIR_IPV4_PKT_FLAG_MF 0x2055 56#define ICE_FDIR_NO_QUEUE_IDX -157 58enum 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 65enum 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 */71struct 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 99struct ice_rx_flow_userdef {100 u16 flex_word;101 u16 flex_offset;102 u16 flex_fltr;103};104 105struct 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 4119 120struct 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 132struct 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 150struct ice_fdir_l2tpv3 {151 __be32 session_id;152};153 154struct 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 163struct 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 */204struct 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 212struct ice_vsi;213 214int ice_alloc_fd_res_cntr(struct ice_hw *hw, u16 *cntr_id);215int ice_free_fd_res_cntr(struct ice_hw *hw, u16 cntr_id);216int ice_alloc_fd_guar_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr);217int ice_alloc_fd_shrd_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr);218void219ice_fdir_get_prgm_desc(struct ice_hw *hw, struct ice_fdir_fltr *input,220 struct ice_fltr_desc *fdesc, bool add);221int222ice_fdir_get_gen_prgm_pkt(struct ice_hw *hw, struct ice_fdir_fltr *input,223 u8 *pkt, bool frag, bool tun);224int ice_get_fdir_cnt_all(struct ice_hw *hw);225int ice_fdir_num_avail_fltr(struct ice_hw *hw, struct ice_vsi *vsi);226bool ice_fdir_is_dup_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input);227bool ice_fdir_has_frag(enum ice_fltr_ptype flow);228struct ice_fdir_fltr *229ice_fdir_find_fltr_by_idx(struct ice_hw *hw, u32 fltr_idx);230void231ice_fdir_update_cntrs(struct ice_hw *hw, enum ice_fltr_ptype flow, bool add);232void ice_fdir_list_add_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input);233#endif /* _ICE_FDIR_H_ */234