/* SPDX-License-Identifier: GPL-2.0 */
/* Marvell RVU Admin Function driver
 *
 * Copyright (C) 2022 Marvell.
 *
 */

#ifndef __RVU_NPC_HASH_H
#define __RVU_NPC_HASH_H

#define RVU_NPC_HASH_SECRET_KEY0 0xa9d5af4c9fbc76b1
#define RVU_NPC_HASH_SECRET_KEY1 0xa9d5af4c9fbc87b4
#define RVU_NPC_HASH_SECRET_KEY2 0x5954c9e7

#define NPC_MAX_HASH 2
#define NPC_MAX_HASH_MASK 2

#define KEX_LD_CFG_USE_HASH(use_hash, bytesm1, hdr_ofs, ena, flags_ena, key_ofs) \
                            ((use_hash) << 20 | ((bytesm1) << 16) | ((hdr_ofs) << 8) | \
                             ((ena) << 7) | ((flags_ena) << 6) | ((key_ofs) & 0x3F))
#define KEX_LD_CFG_HASH(hdr_ofs, bytesm1, lt_en, lid_en, lid, ltype_match, ltype_mask)  \
                        (((hdr_ofs) << 32) | ((bytesm1) << 16) | \
                         ((lt_en) << 12) | ((lid_en) << 11) | ((lid) << 8) | \
                         ((ltype_match) << 4) | ((ltype_mask) & 0xF))

#define SET_KEX_LD_HASH(intf, ld, cfg) \
        rvu_write64(rvu, blkaddr,       \
                    NPC_AF_INTFX_HASHX_CFG(intf, ld), cfg)

#define SET_KEX_LD_HASH_MASK(intf, ld, mask_idx, cfg) \
        rvu_write64(rvu, blkaddr,       \
                    NPC_AF_INTFX_HASHX_MASKX(intf, ld, mask_idx), cfg)

#define GET_KEX_LD_HASH_CTRL(intf, ld)  \
        rvu_read64(rvu, blkaddr, NPC_AF_INTFX_HASHX_RESULT_CTRL(intf, ld))

#define GET_KEX_LD_HASH_MASK(intf, ld, mask_idx)        \
        rvu_read64(rvu, blkaddr, NPC_AF_INTFX_HASHX_MASKX(intf, ld, mask_idx))

#define SET_KEX_LD_HASH_CTRL(intf, ld, cfg) \
        rvu_write64(rvu, blkaddr,       \
                    NPC_AF_INTFX_HASHX_RESULT_CTRL(intf, ld), cfg)

struct npc_mcam_kex_hash {
        /* NPC_AF_INTF(0..1)_LID(0..7)_LT(0..15)_LD(0..1)_CFG */
        bool lid_lt_ld_hash_en[NPC_MAX_INTF][NPC_MAX_LID][NPC_MAX_LT][NPC_MAX_LD];
        /* NPC_AF_INTF(0..1)_HASH(0..1)_CFG */
        u64 hash[NPC_MAX_INTF][NPC_MAX_HASH];
        /* NPC_AF_INTF(0..1)_HASH(0..1)_MASK(0..1) */
        u64 hash_mask[NPC_MAX_INTF][NPC_MAX_HASH][NPC_MAX_HASH_MASK];
        /* NPC_AF_INTF(0..1)_HASH(0..1)_RESULT_CTRL */
        u64 hash_ctrl[NPC_MAX_INTF][NPC_MAX_HASH];
} __packed;

void npc_update_field_hash(struct rvu *rvu, u8 intf,
                           struct mcam_entry_mdata *mdata,
                           int blkaddr,
                           u64 features,
                           struct flow_msg *pkt,
                           struct flow_msg *mask,
                           struct flow_msg *opkt,
                           struct flow_msg *omask);
void npc_config_secret_key(struct rvu *rvu, int blkaddr);
void npc_program_mkex_hash(struct rvu *rvu, int blkaddr);
u32 npc_field_hash_calc(u64 *ldata, struct npc_get_field_hash_info_rsp rsp,
                        u8 intf, u8 hash_idx);

static struct npc_mcam_kex_hash npc_mkex_hash_default __maybe_unused = {
        .lid_lt_ld_hash_en = {
        [NIX_INTF_RX] = {
                [NPC_LID_LC] = {
                        [NPC_LT_LC_IP6] = {
                                false,
                                false,
                        },
                },
        },

        [NIX_INTF_TX] = {
                [NPC_LID_LC] = {
                        [NPC_LT_LC_IP6] = {
                                false,
                                false,
                        },
                },
        },
        },

        .hash = {
        [NIX_INTF_RX] = {
                KEX_LD_CFG_HASH(0x8ULL, 0xf, 0x1, 0x1, NPC_LID_LC, NPC_LT_LC_IP6, 0xf),
                KEX_LD_CFG_HASH(0x18ULL, 0xf, 0x1, 0x1, NPC_LID_LC, NPC_LT_LC_IP6, 0xf),
        },

        [NIX_INTF_TX] = {
                KEX_LD_CFG_HASH(0x8ULL, 0xf, 0x1, 0x1, NPC_LID_LC, NPC_LT_LC_IP6, 0xf),
                KEX_LD_CFG_HASH(0x18ULL, 0xf, 0x1, 0x1, NPC_LID_LC, NPC_LT_LC_IP6, 0xf),
        },
        },

        .hash_mask = {
        [NIX_INTF_RX] = {
                [0] = {
                        GENMASK_ULL(63, 0),
                        GENMASK_ULL(63, 0),
                },
                [1] = {
                        GENMASK_ULL(63, 0),
                        GENMASK_ULL(63, 0),
                },
        },

        [NIX_INTF_TX] = {
                [0] = {
                        GENMASK_ULL(63, 0),
                        GENMASK_ULL(63, 0),
                },
                [1] = {
                        GENMASK_ULL(63, 0),
                        GENMASK_ULL(63, 0),
                },
        },
        },

        .hash_ctrl = {
        [NIX_INTF_RX] = {
                [0] = GENMASK_ULL(63, 32), /* MSB 32 bit is mask and LSB 32 bit is offset. */
                [1] = GENMASK_ULL(63, 32), /* MSB 32 bit is mask and LSB 32 bit is offset. */
        },

        [NIX_INTF_TX] = {
                [0] = GENMASK_ULL(63, 32), /* MSB 32 bit is mask and LSB 32 bit is offset. */
                [1] = GENMASK_ULL(63, 32), /* MSB 32 bit is mask and LSB 32 bit is offset. */
        },
        },
};

/* If exact match table support is enabled, enable drop rules */
#define NPC_MCAM_DROP_RULE_MAX 30
#define NPC_MCAM_SDP_DROP_RULE_IDX 0

#define RVU_PFFUNC(pdev, pf, func) rvu_make_pcifunc(pdev, pf, func)

enum npc_exact_opc_type {
        NPC_EXACT_OPC_MEM,
        NPC_EXACT_OPC_CAM,
};

struct npc_exact_table_entry {
        struct list_head list;
        struct list_head glist;
        u32 seq_id;     /* Sequence number of entry */
        u32 index;      /* Mem table or cam table index */
        u32 mcam_idx;
                /* Mcam index. This is valid only if "cmd" field is false */
        enum npc_exact_opc_type opc_type;
        u16 chan;
        u16 pcifunc;
        u8 ways;
        u8 mac[ETH_ALEN];
        u8 ctype;
        u8 cgx_id;
        u8 lmac_id;
        bool cmd;       /* Is added by ethtool command ? */
};

struct npc_exact_table {
        struct mutex lock;      /* entries update lock */
        unsigned long *id_bmap;
        int num_drop_rules;
        u32 tot_ids;
        u16 cnt_cmd_rules[NPC_MCAM_DROP_RULE_MAX];
        u16 counter_idx[NPC_MCAM_DROP_RULE_MAX];
        bool promisc_mode[NPC_MCAM_DROP_RULE_MAX];
        struct {
                int ways;
                int depth;
                unsigned long *bmap;
                u64 mask;       // Masks before hash calculation.
                u16 hash_mask;  // 11 bits for hash mask
                u16 hash_offset; // 11 bits offset
        } mem_table;

        struct {
                int depth;
                unsigned long *bmap;
        } cam_table;

        struct {
                bool valid;
                u16 chan_val;
                u16 chan_mask;
                u16 pcifunc;
                u8 drop_rule_idx;
        } drop_rule_map[NPC_MCAM_DROP_RULE_MAX];

#define NPC_EXACT_TBL_MAX_WAYS 4

        struct list_head lhead_mem_tbl_entry[NPC_EXACT_TBL_MAX_WAYS];
        int mem_tbl_entry_cnt;

        struct list_head lhead_cam_tbl_entry;
        int cam_tbl_entry_cnt;

        struct list_head lhead_gbl;
};

bool rvu_npc_exact_has_match_table(struct rvu *rvu);
u32 rvu_npc_exact_get_max_entries(struct rvu *rvu);
int rvu_npc_exact_init(struct rvu *rvu);
int rvu_npc_exact_mac_addr_reset(struct rvu *rvu, struct cgx_mac_addr_reset_req *req,
                                 struct msg_rsp *rsp);

int rvu_npc_exact_mac_addr_update(struct rvu *rvu,
                                  struct cgx_mac_addr_update_req *req,
                                  struct cgx_mac_addr_update_rsp *rsp);

int rvu_npc_exact_mac_addr_add(struct rvu *rvu,
                               struct cgx_mac_addr_add_req *req,
                               struct cgx_mac_addr_add_rsp *rsp);

int rvu_npc_exact_mac_addr_del(struct rvu *rvu,
                               struct cgx_mac_addr_del_req *req,
                               struct msg_rsp *rsp);

int rvu_npc_exact_mac_addr_set(struct rvu *rvu, struct cgx_mac_addr_set_or_get *req,
                               struct cgx_mac_addr_set_or_get *rsp);

void rvu_npc_exact_reset(struct rvu *rvu, u16 pcifunc);

bool rvu_npc_exact_can_disable_feature(struct rvu *rvu);
void rvu_npc_exact_disable_feature(struct rvu *rvu);
void rvu_npc_exact_reset(struct rvu *rvu, u16 pcifunc);
u16 rvu_npc_exact_drop_rule_to_pcifunc(struct rvu *rvu, u32 drop_rule_idx);
int rvu_npc_exact_promisc_disable(struct rvu *rvu, u16 pcifunc);
int rvu_npc_exact_promisc_enable(struct rvu *rvu, u16 pcifunc);
#endif /* RVU_NPC_HASH_H */