/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2019, Intel Corporation. */

#ifndef _ICE_FLEX_TYPE_H_
#define _ICE_FLEX_TYPE_H_
#include "ice_ddp.h"

/* Packet Type (PTYPE) values */
#define ICE_PTYPE_MAC_PAY               1
#define ICE_PTYPE_IPV4_PAY              23
#define ICE_PTYPE_IPV4_UDP_PAY          24
#define ICE_PTYPE_IPV4_TCP_PAY          26
#define ICE_PTYPE_IPV4_SCTP_PAY         27
#define ICE_PTYPE_IPV6_PAY              89
#define ICE_PTYPE_IPV6_UDP_PAY          90
#define ICE_PTYPE_IPV6_TCP_PAY          92
#define ICE_PTYPE_IPV6_SCTP_PAY         93
#define ICE_MAC_IPV4_ESP                160
#define ICE_MAC_IPV6_ESP                161
#define ICE_MAC_IPV4_AH                 162
#define ICE_MAC_IPV6_AH                 163
#define ICE_MAC_IPV4_NAT_T_ESP          164
#define ICE_MAC_IPV6_NAT_T_ESP          165
#define ICE_MAC_IPV4_GTPU               329
#define ICE_MAC_IPV6_GTPU               330
#define ICE_MAC_IPV4_GTPU_IPV4_FRAG     331
#define ICE_MAC_IPV4_GTPU_IPV4_PAY      332
#define ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY  333
#define ICE_MAC_IPV4_GTPU_IPV4_TCP      334
#define ICE_MAC_IPV4_GTPU_IPV4_ICMP     335
#define ICE_MAC_IPV6_GTPU_IPV4_FRAG     336
#define ICE_MAC_IPV6_GTPU_IPV4_PAY      337
#define ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY  338
#define ICE_MAC_IPV6_GTPU_IPV4_TCP      339
#define ICE_MAC_IPV6_GTPU_IPV4_ICMP     340
#define ICE_MAC_IPV4_GTPU_IPV6_FRAG     341
#define ICE_MAC_IPV4_GTPU_IPV6_PAY      342
#define ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY  343
#define ICE_MAC_IPV4_GTPU_IPV6_TCP      344
#define ICE_MAC_IPV4_GTPU_IPV6_ICMPV6   345
#define ICE_MAC_IPV6_GTPU_IPV6_FRAG     346
#define ICE_MAC_IPV6_GTPU_IPV6_PAY      347
#define ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY  348
#define ICE_MAC_IPV6_GTPU_IPV6_TCP      349
#define ICE_MAC_IPV6_GTPU_IPV6_ICMPV6   350
#define ICE_MAC_IPV4_PFCP_SESSION       352
#define ICE_MAC_IPV6_PFCP_SESSION       354
#define ICE_MAC_IPV4_L2TPV3             360
#define ICE_MAC_IPV6_L2TPV3             361

/* Attributes that can modify PTYPE definitions.
 *
 * These values will represent special attributes for PTYPEs, which will
 * resolve into metadata packet flags definitions that can be used in the TCAM
 * for identifying a PTYPE with specific characteristics.
 */
enum ice_ptype_attrib_type {
        /* GTP PTYPEs */
        ICE_PTYPE_ATTR_GTP_PDU_EH,
        ICE_PTYPE_ATTR_GTP_SESSION,
        ICE_PTYPE_ATTR_GTP_DOWNLINK,
        ICE_PTYPE_ATTR_GTP_UPLINK,
};

struct ice_ptype_attrib_info {
        u16 flags;
        u16 mask;
};

/* TCAM flag definitions */
#define ICE_GTP_PDU                     BIT(14)
#define ICE_GTP_PDU_LINK                BIT(13)

/* GTP attributes */
#define ICE_GTP_PDU_FLAG_MASK           (ICE_GTP_PDU)
#define ICE_GTP_PDU_EH                  ICE_GTP_PDU

#define ICE_GTP_FLAGS_MASK              (ICE_GTP_PDU | ICE_GTP_PDU_LINK)
#define ICE_GTP_SESSION                 0
#define ICE_GTP_DOWNLINK                ICE_GTP_PDU
#define ICE_GTP_UPLINK                  (ICE_GTP_PDU | ICE_GTP_PDU_LINK)

struct ice_ptype_attributes {
        u16 ptype;
        enum ice_ptype_attrib_type attrib;
};

/* Tunnel enabling */

enum ice_tunnel_type {
        TNL_VXLAN = 0,
        TNL_GENEVE,
        TNL_GRETAP,
        TNL_GTPC,
        TNL_GTPU,
        TNL_PFCP,
        __TNL_TYPE_CNT,
        TNL_LAST = 0xFF,
        TNL_ALL = 0xFF,
};

struct ice_tunnel_type_scan {
        enum ice_tunnel_type type;
        const char *label_prefix;
};

struct ice_tunnel_entry {
        enum ice_tunnel_type type;
        u16 boost_addr;
        u16 port;
        struct ice_boost_tcam_entry *boost_entry;
        u8 valid;
};

#define ICE_TUNNEL_MAX_ENTRIES  16

struct ice_tunnel_table {
        struct ice_tunnel_entry tbl[ICE_TUNNEL_MAX_ENTRIES];
        u16 count;
        u16 valid_count[__TNL_TYPE_CNT];
};

struct ice_dvm_entry {
        u16 boost_addr;
        u16 enable;
        struct ice_boost_tcam_entry *boost_entry;
};

#define ICE_DVM_MAX_ENTRIES     48

struct ice_dvm_table {
        struct ice_dvm_entry tbl[ICE_DVM_MAX_ENTRIES];
        u16 count;
};

struct ice_pkg_es {
        __le16 count;
        __le16 offset;
        struct ice_fv_word es[];
};

struct ice_es {
        u32 sid;
        u16 count;
        u16 fvw;
        u16 *ref_count;
        u32 *mask_ena;
        struct list_head prof_map;
        struct ice_fv_word *t;
        u8 *symm;       /* symmetric setting per profile (RSS blk)*/
        struct mutex prof_map_lock;     /* protect access to profiles list */
        u8 *written;
        u8 reverse; /* set to true to reverse FV order */
};

/* PTYPE Group management */

/* Note: XLT1 table takes 13-bit as input, and results in an 8-bit packet type
 * group (PTG) ID as output.
 *
 * Note: PTG 0 is the default packet type group and it is assumed that all PTYPE
 * are a part of this group until moved to a new PTG.
 */
#define ICE_DEFAULT_PTG 0

struct ice_ptg_entry {
        struct ice_ptg_ptype *first_ptype;
        u8 in_use;
};

struct ice_ptg_ptype {
        struct ice_ptg_ptype *next_ptype;
        u8 ptg;
};

#define ICE_MAX_TCAM_PER_PROFILE        32
#define ICE_MAX_PTG_PER_PROFILE         32

struct ice_prof_map {
        struct list_head list;
        u64 profile_cookie;
        u64 context;
        u8 prof_id;
        u8 ptg_cnt;
        u8 ptg[ICE_MAX_PTG_PER_PROFILE];
        struct ice_ptype_attrib_info attr[ICE_MAX_PTG_PER_PROFILE];
};

#define ICE_INVALID_TCAM        0xFFFF
#define ICE_MAX_PTG_ATTRS       1024

struct ice_tcam_inf {
        u16 tcam_idx;
        struct ice_ptype_attrib_info attr;
        u8 ptg;
        u8 prof_id;
        u8 in_use;
};

struct ice_vsig_prof {
        struct list_head list;
        u64 profile_cookie;
        u8 prof_id;
        u8 tcam_count;
        struct ice_tcam_inf tcam[ICE_MAX_TCAM_PER_PROFILE];
};

struct ice_vsig_entry {
        struct list_head prop_lst;
        struct ice_vsig_vsi *first_vsi;
        u8 in_use;
};

struct ice_vsig_vsi {
        struct ice_vsig_vsi *next_vsi;
        u32 prop_mask;
        u16 changed;
        u16 vsig;
};

#define ICE_XLT1_CNT    1024
#define ICE_MAX_PTGS    256

/* XLT1 Table */
struct ice_xlt1 {
        struct ice_ptg_entry *ptg_tbl;
        struct ice_ptg_ptype *ptypes;
        u8 *t;
        u32 sid;
        u16 count;
};

#define ICE_XLT2_CNT    768
#define ICE_MAX_VSIGS   768

/* VSIG bit layout:
 * [0:12]: incremental VSIG index 1 to ICE_MAX_VSIGS
 * [13:15]: PF number of device
 */
#define ICE_VSIG_IDX_M  (0x1FFF)
#define ICE_PF_NUM_S    13
#define ICE_PF_NUM_M    (0x07 << ICE_PF_NUM_S)
#define ICE_VSIG_VALUE(vsig, pf_id) \
        ((u16)((((u16)(vsig)) & ICE_VSIG_IDX_M) | \
               (((u16)(pf_id) << ICE_PF_NUM_S) & ICE_PF_NUM_M)))
#define ICE_DEFAULT_VSIG        0

/* XLT2 Table */
struct ice_xlt2 {
        struct ice_vsig_entry *vsig_tbl;
        struct ice_vsig_vsi *vsis;
        u16 *t;
        u32 sid;
        u16 count;
};

/* Profile ID Management */
struct ice_prof_id_key {
        __le16 flags;
        u8 xlt1;
        __le16 xlt2_cdid;
} __packed;

/* Keys are made up of two values, each one-half the size of the key.
 * For TCAM, the entire key is 80 bits wide (or 2, 40-bit wide values)
 */
#define ICE_TCAM_KEY_VAL_SZ     5
#define ICE_TCAM_KEY_SZ         (2 * ICE_TCAM_KEY_VAL_SZ)

struct ice_prof_tcam_entry {
        __le16 addr;
        u8 key[ICE_TCAM_KEY_SZ];
        u8 prof_id;
} __packed;

struct ice_prof_id_section {
        __le16 count;
        struct ice_prof_tcam_entry entry[];
};

struct ice_prof_tcam {
        u32 sid;
        u16 count;
        u16 max_prof_id;
        struct ice_prof_tcam_entry *t;
        u8 cdid_bits; /* # CDID bits to use in key, 0, 2, 4, or 8 */
};

struct ice_prof_redir {
        u8 *t;
        u32 sid;
        u16 count;
};

struct ice_mask {
        u16 mask;       /* 16-bit mask */
        u16 idx;        /* index */
        u16 ref;        /* reference count */
        u8 in_use;      /* non-zero if used */
};

struct ice_masks {
        struct mutex lock; /* lock to protect this structure */
        u16 first;      /* first mask owned by the PF */
        u16 count;      /* number of masks owned by the PF */
#define ICE_PROF_MASK_COUNT 32
        struct ice_mask masks[ICE_PROF_MASK_COUNT];
};

struct ice_prof_id {
        unsigned long *id;
        int count;
};

/* Tables per block */
struct ice_blk_info {
        struct ice_xlt1 xlt1;
        struct ice_xlt2 xlt2;
        struct ice_prof_id prof_id;
        struct ice_prof_tcam prof;
        struct ice_prof_redir prof_redir;
        struct ice_es es;
        struct ice_masks masks;
        u8 overwrite; /* set to true to allow overwrite of table entries */
        u8 is_list_init;
};

enum ice_chg_type {
        ICE_TCAM_NONE = 0,
        ICE_PTG_ES_ADD,
        ICE_TCAM_ADD,
        ICE_VSIG_ADD,
        ICE_VSIG_REM,
        ICE_VSI_MOVE,
};

struct ice_chs_chg {
        struct list_head list_entry;
        enum ice_chg_type type;

        u8 add_ptg;
        u8 add_vsig;
        u8 add_tcam_idx;
        u8 add_prof;
        u16 ptype;
        u8 ptg;
        u8 prof_id;
        u16 vsi;
        u16 vsig;
        u16 orig_vsig;
        u16 tcam_idx;
        struct ice_ptype_attrib_info attr;
};

#define ICE_FLOW_PTYPE_MAX              ICE_XLT1_CNT

enum ice_prof_type {
        ICE_PROF_NON_TUN = 0x1,
        ICE_PROF_TUN_UDP = 0x2,
        ICE_PROF_TUN_GRE = 0x4,
        ICE_PROF_TUN_GTPU = 0x8,
        ICE_PROF_TUN_GTPC = 0x10,
        ICE_PROF_TUN_PFCP = 0x20,
        ICE_PROF_TUN_ALL = 0x3E,
        ICE_PROF_ALL = 0xFF,
};

/* Number of bits/bytes contained in meta init entry. Note, this should be a
 * multiple of 32 bits.
 */
#define ICE_META_INIT_BITS      192
#define ICE_META_INIT_DW_CNT    (ICE_META_INIT_BITS / (sizeof(__le32) * \
                                 BITS_PER_BYTE))

/* The meta init Flag field starts at this bit */
#define ICE_META_FLAGS_ST               123

/* The entry and bit to check for Double VLAN Mode (DVM) support */
#define ICE_META_VLAN_MODE_ENTRY        0
#define ICE_META_FLAG_VLAN_MODE         60
#define ICE_META_VLAN_MODE_BIT          (ICE_META_FLAGS_ST + \
                                         ICE_META_FLAG_VLAN_MODE)

struct ice_meta_init_entry {
        __le32 bm[ICE_META_INIT_DW_CNT];
};

struct ice_meta_init_section {
        __le16 count;
        __le16 offset;
        struct ice_meta_init_entry entry;
};
#endif /* _ICE_FLEX_TYPE_H_ */