1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 2018-2020, Intel Corporation. */
7 #define ICE_FDIR_TUN_PKT_OFF 50
8 #define ICE_FDIR_MAX_RAW_PKT_SIZE (512 + ICE_FDIR_TUN_PKT_OFF)
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
45 #define ICE_FDIR_MAX_FLTRS 16384
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
51 #define ICE_FDIR_IPV4_PKT_FLAG_MF 0x20
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,
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,
65 /* Flow Director (FD) Filter Programming descriptor */
66 struct ice_fd_fltr_desc_ctx {
92 #define ICE_FLTR_PRGM_FLEX_WORD_SIZE sizeof(__be16)
94 struct ice_rx_flow_userdef {
106 __be32 sec_parm_idx; /* security parameter index */
113 #define ICE_IPV6_ADDR_LEN_AS_U32 4
116 __be32 dst_ip[ICE_IPV6_ADDR_LEN_AS_U32];
117 __be32 src_ip[ICE_IPV6_ADDR_LEN_AS_U32];
120 __be32 l4_header; /* next header */
121 __be32 sec_parm_idx; /* security parameter index */
127 struct ice_fdir_udp_gtp {
132 __be16 rsrvd_seq_nbr;
134 u8 rsrvd_next_ext_type;
145 struct ice_fdir_l2tpv3 {
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 */
158 struct ice_fdir_fltr {
159 struct list_head fltr_node;
160 enum ice_fltr_ptype flow_type;
163 struct ice_fdir_v4 v4;
164 struct ice_fdir_v6 v6;
167 struct ice_fdir_udp_gtp gtpu_data;
168 struct ice_fdir_udp_gtp gtpu_mask;
170 struct ice_fdir_l2tpv3 l2tpv3_data;
171 struct ice_fdir_l2tpv3 l2tpv3_mask;
173 struct ice_fdir_extra ext_data;
174 struct ice_fdir_extra ext_mask;
176 /* flex byte filter data */
178 /* queue region size (=2^q_region) */
196 /* Dummy packet filter definition structure */
197 struct ice_fdir_base_pkt {
198 enum ice_fltr_ptype flow;
205 int ice_alloc_fd_res_cntr(struct ice_hw *hw, u16 *cntr_id);
206 int ice_free_fd_res_cntr(struct ice_hw *hw, u16 cntr_id);
207 int ice_alloc_fd_guar_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr);
208 int ice_alloc_fd_shrd_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr);
210 ice_fdir_get_prgm_desc(struct ice_hw *hw, struct ice_fdir_fltr *input,
211 struct ice_fltr_desc *fdesc, bool add);
213 ice_fdir_get_gen_prgm_pkt(struct ice_hw *hw, struct ice_fdir_fltr *input,
214 u8 *pkt, bool frag, bool tun);
215 int ice_get_fdir_cnt_all(struct ice_hw *hw);
216 bool ice_fdir_is_dup_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input);
217 bool ice_fdir_has_frag(enum ice_fltr_ptype flow);
218 struct ice_fdir_fltr *
219 ice_fdir_find_fltr_by_idx(struct ice_hw *hw, u32 fltr_idx);
221 ice_fdir_update_cntrs(struct ice_hw *hw, enum ice_fltr_ptype flow, bool add);
222 void ice_fdir_list_add_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input);
223 #endif /* _ICE_FDIR_H_ */