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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2018-2020, Intel Corporation. */
#ifndef _ICE_FDIR_H_
#define _ICE_FDIR_H_
#define ICE_FDIR_TUN_PKT_OFF 50
#define ICE_FDIR_MAX_RAW_PKT_SIZE (512 + ICE_FDIR_TUN_PKT_OFF)
/* macros for offsets into packets for flow director programming */
#define ICE_IPV4_SRC_ADDR_OFFSET 26
#define ICE_IPV4_DST_ADDR_OFFSET 30
#define ICE_IPV4_TCP_SRC_PORT_OFFSET 34
#define ICE_IPV4_TCP_DST_PORT_OFFSET 36
#define ICE_IPV4_UDP_SRC_PORT_OFFSET 34
#define ICE_IPV4_UDP_DST_PORT_OFFSET 36
#define ICE_IPV4_SCTP_SRC_PORT_OFFSET 34
#define ICE_IPV4_SCTP_DST_PORT_OFFSET 36
#define ICE_IPV4_PROTO_OFFSET 23
#define ICE_IPV6_SRC_ADDR_OFFSET 22
#define ICE_IPV6_DST_ADDR_OFFSET 38
#define ICE_IPV6_TCP_SRC_PORT_OFFSET 54
#define ICE_IPV6_TCP_DST_PORT_OFFSET 56
#define ICE_IPV6_UDP_SRC_PORT_OFFSET 54
#define ICE_IPV6_UDP_DST_PORT_OFFSET 56
#define ICE_IPV6_SCTP_SRC_PORT_OFFSET 54
#define ICE_IPV6_SCTP_DST_PORT_OFFSET 56
#define ICE_MAC_ETHTYPE_OFFSET 12
#define ICE_IPV4_TOS_OFFSET 15
#define ICE_IPV4_TTL_OFFSET 22
#define ICE_IPV6_TC_OFFSET 14
#define ICE_IPV6_HLIM_OFFSET 21
#define ICE_IPV6_PROTO_OFFSET 20
#define ICE_IPV4_GTPU_TEID_OFFSET 46
#define ICE_IPV4_GTPU_QFI_OFFSET 56
#define ICE_IPV4_L2TPV3_SESS_ID_OFFSET 34
#define ICE_IPV6_L2TPV3_SESS_ID_OFFSET 54
#define ICE_IPV4_ESP_SPI_OFFSET 34
#define ICE_IPV6_ESP_SPI_OFFSET 54
#define ICE_IPV4_AH_SPI_OFFSET 38
#define ICE_IPV6_AH_SPI_OFFSET 58
#define ICE_IPV4_NAT_T_ESP_SPI_OFFSET 42
#define ICE_IPV6_NAT_T_ESP_SPI_OFFSET 62
#define ICE_FDIR_MAX_FLTRS 16384
/* IP v4 has 2 flag bits that enable fragment processing: DF and MF. DF
* requests that the packet not be fragmented. MF indicates that a packet has
* been fragmented.
*/
#define ICE_FDIR_IPV4_PKT_FLAG_MF 0x20
enum ice_fltr_prgm_desc_dest {
ICE_FLTR_PRGM_DESC_DEST_DROP_PKT,
ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QINDEX,
ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QGROUP,
ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_OTHER,
};
enum ice_fltr_prgm_desc_fd_status {
ICE_FLTR_PRGM_DESC_FD_STATUS_NONE,
ICE_FLTR_PRGM_DESC_FD_STATUS_FD_ID,
};
/* Flow Director (FD) Filter Programming descriptor */
struct ice_fd_fltr_desc_ctx {
u32 fdid;
u16 qindex;
u16 cnt_index;
u16 fd_vsi;
u16 flex_val;
u8 comp_q;
u8 comp_report;
u8 fd_space;
u8 cnt_ena;
u8 evict_ena;
u8 toq;
u8 toq_prio;
u8 dpu_recipe;
u8 drop;
u8 flex_prio;
u8 flex_mdid;
u8 dtype;
u8 pcmd;
u8 desc_prof_prio;
u8 desc_prof;
u8 swap;
u8 fdid_prio;
u8 fdid_mdid;
};
#define ICE_FLTR_PRGM_FLEX_WORD_SIZE sizeof(__be16)
struct ice_rx_flow_userdef {
u16 flex_word;
u16 flex_offset;
u16 flex_fltr;
};
struct ice_fdir_v4 {
__be32 dst_ip;
__be32 src_ip;
__be16 dst_port;
__be16 src_port;
__be32 l4_header;
__be32 sec_parm_idx; /* security parameter index */
u8 tos;
u8 ip_ver;
u8 proto;
u8 ttl;
};
#define ICE_IPV6_ADDR_LEN_AS_U32 4
struct ice_fdir_v6 {
__be32 dst_ip[ICE_IPV6_ADDR_LEN_AS_U32];
__be32 src_ip[ICE_IPV6_ADDR_LEN_AS_U32];
__be16 dst_port;
__be16 src_port;
__be32 l4_header; /* next header */
__be32 sec_parm_idx; /* security parameter index */
u8 tc;
u8 proto;
u8 hlim;
};
struct ice_fdir_udp_gtp {
u8 flags;
u8 msg_type;
__be16 rsrvd_len;
__be32 teid;
__be16 rsrvd_seq_nbr;
u8 rsrvd_n_pdu_nbr;
u8 rsrvd_next_ext_type;
u8 rsvrd_ext_len;
u8 pdu_type:4,
spare:4;
u8 ppp:1,
rqi:1,
qfi:6;
u32 rsvrd;
u8 next_ext;
};
struct ice_fdir_l2tpv3 {
__be32 session_id;
};
struct ice_fdir_extra {
u8 dst_mac[ETH_ALEN]; /* dest MAC address */
u8 src_mac[ETH_ALEN]; /* src MAC address */
__be16 ether_type; /* for NON_IP_L2 */
u32 usr_def[2]; /* user data */
__be16 vlan_type; /* VLAN ethertype */
__be16 vlan_tag; /* VLAN tag info */
};
struct ice_fdir_fltr {
struct list_head fltr_node;
enum ice_fltr_ptype flow_type;
union {
struct ice_fdir_v4 v4;
struct ice_fdir_v6 v6;
} ip, mask;
struct ice_fdir_udp_gtp gtpu_data;
struct ice_fdir_udp_gtp gtpu_mask;
struct ice_fdir_l2tpv3 l2tpv3_data;
struct ice_fdir_l2tpv3 l2tpv3_mask;
struct ice_fdir_extra ext_data;
struct ice_fdir_extra ext_mask;
/* flex byte filter data */
__be16 flex_word;
/* queue region size (=2^q_region) */
u8 q_region;
u16 flex_offset;
u16 flex_fltr;
/* filter control */
u16 q_index;
u16 orig_q_index;
u16 dest_vsi;
u8 dest_ctl;
u8 cnt_ena;
u8 fltr_status;
u16 cnt_index;
u32 fltr_id;
u8 fdid_prio;
u8 comp_report;
};
/* Dummy packet filter definition structure */
struct ice_fdir_base_pkt {
enum ice_fltr_ptype flow;
u16 pkt_len;
const u8 *pkt;
u16 tun_pkt_len;
const u8 *tun_pkt;
};
int ice_alloc_fd_res_cntr(struct ice_hw *hw, u16 *cntr_id);
int ice_free_fd_res_cntr(struct ice_hw *hw, u16 cntr_id);
int ice_alloc_fd_guar_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr);
int ice_alloc_fd_shrd_item(struct ice_hw *hw, u16 *cntr_id, u16 num_fltr);
void
ice_fdir_get_prgm_desc(struct ice_hw *hw, struct ice_fdir_fltr *input,
struct ice_fltr_desc *fdesc, bool add);
int
ice_fdir_get_gen_prgm_pkt(struct ice_hw *hw, struct ice_fdir_fltr *input,
u8 *pkt, bool frag, bool tun);
int ice_get_fdir_cnt_all(struct ice_hw *hw);
bool ice_fdir_is_dup_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input);
bool ice_fdir_has_frag(enum ice_fltr_ptype flow);
struct ice_fdir_fltr *
ice_fdir_find_fltr_by_idx(struct ice_hw *hw, u32 fltr_idx);
void
ice_fdir_update_cntrs(struct ice_hw *hw, enum ice_fltr_ptype flow, bool add);
void ice_fdir_list_add_fltr(struct ice_hw *hw, struct ice_fdir_fltr *input);
#endif /* _ICE_FDIR_H_ */
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