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