/* SPDX-License-Identifier: GPL-2.0+ */
// Copyright (c) 2021-2021 Hisilicon Limited.

#ifndef __HCLGE_COMM_RSS_H
#define __HCLGE_COMM_RSS_H
#include <linux/types.h>

#include "hnae3.h"
#include "hclge_comm_cmd.h"

#define HCLGE_COMM_RSS_HASH_ALGO_TOEPLITZ       0
#define HCLGE_COMM_RSS_HASH_ALGO_SIMPLE         1
#define HCLGE_COMM_RSS_HASH_ALGO_SYMMETRIC      2

#define HCLGE_COMM_RSS_INPUT_TUPLE_OTHER        GENMASK(3, 0)
#define HCLGE_COMM_RSS_INPUT_TUPLE_SCTP         GENMASK(4, 0)

#define HCLGE_COMM_D_PORT_BIT           BIT(0)
#define HCLGE_COMM_S_PORT_BIT           BIT(1)
#define HCLGE_COMM_D_IP_BIT             BIT(2)
#define HCLGE_COMM_S_IP_BIT             BIT(3)
#define HCLGE_COMM_V_TAG_BIT            BIT(4)
#define HCLGE_COMM_RSS_INPUT_TUPLE_SCTP_NO_PORT \
        (HCLGE_COMM_D_IP_BIT | HCLGE_COMM_S_IP_BIT | HCLGE_COMM_V_TAG_BIT)
#define HCLGE_COMM_MAX_TC_NUM           8

#define HCLGE_COMM_RSS_TC_OFFSET_S              0
#define HCLGE_COMM_RSS_TC_OFFSET_M              GENMASK(10, 0)
#define HCLGE_COMM_RSS_TC_SIZE_MSB_B    11
#define HCLGE_COMM_RSS_TC_SIZE_S                12
#define HCLGE_COMM_RSS_TC_SIZE_M                GENMASK(14, 12)
#define HCLGE_COMM_RSS_TC_VALID_B               15
#define HCLGE_COMM_RSS_TC_SIZE_MSB_OFFSET       3

struct hclge_comm_rss_tuple_cfg {
        u8 ipv4_tcp_en;
        u8 ipv4_udp_en;
        u8 ipv4_sctp_en;
        u8 ipv4_fragment_en;
        u8 ipv6_tcp_en;
        u8 ipv6_udp_en;
        u8 ipv6_sctp_en;
        u8 ipv6_fragment_en;
};

#define HCLGE_COMM_RSS_KEY_SIZE         40
#define HCLGE_COMM_RSS_CFG_TBL_SIZE     16
#define HCLGE_COMM_RSS_CFG_TBL_BW_H     2U
#define HCLGE_COMM_RSS_CFG_TBL_BW_L     8U
#define HCLGE_COMM_RSS_CFG_TBL_SIZE_H   4
#define HCLGE_COMM_RSS_SET_BITMAP_MSK   GENMASK(15, 0)
#define HCLGE_COMM_RSS_HASH_ALGO_MASK   GENMASK(3, 0)
#define HCLGE_COMM_RSS_HASH_KEY_OFFSET_B        4

#define HCLGE_COMM_RSS_HASH_KEY_NUM     16
struct hclge_comm_rss_config_cmd {
        u8 hash_config;
        u8 rsv[7];
        u8 hash_key[HCLGE_COMM_RSS_HASH_KEY_NUM];
};

struct hclge_comm_rss_cfg {
        u8 rss_hash_key[HCLGE_COMM_RSS_KEY_SIZE]; /* user configured hash keys */

        /* shadow table */
        u16 *rss_indirection_tbl;
        u32 rss_algo;

        struct hclge_comm_rss_tuple_cfg rss_tuple_sets;
        u32 rss_size;
};

struct hclge_comm_rss_input_tuple_cmd {
        u8 ipv4_tcp_en;
        u8 ipv4_udp_en;
        u8 ipv4_sctp_en;
        u8 ipv4_fragment_en;
        u8 ipv6_tcp_en;
        u8 ipv6_udp_en;
        u8 ipv6_sctp_en;
        u8 ipv6_fragment_en;
        u8 rsv[16];
};

struct hclge_comm_rss_ind_tbl_cmd {
        __le16 start_table_index;
        __le16 rss_set_bitmap;
        u8 rss_qid_h[HCLGE_COMM_RSS_CFG_TBL_SIZE_H];
        u8 rss_qid_l[HCLGE_COMM_RSS_CFG_TBL_SIZE];
};

struct hclge_comm_rss_tc_mode_cmd {
        __le16 rss_tc_mode[HCLGE_COMM_MAX_TC_NUM];
        u8 rsv[8];
};

u32 hclge_comm_get_rss_key_size(struct hnae3_handle *handle);
void hclge_comm_rss_indir_init_cfg(struct hnae3_ae_dev *ae_dev,
                                   struct hclge_comm_rss_cfg *rss_cfg);
int hclge_comm_get_rss_tuple(struct hclge_comm_rss_cfg *rss_cfg, int flow_type,
                             u8 *tuple_sets);
int hclge_comm_parse_rss_hfunc(struct hclge_comm_rss_cfg *rss_cfg,
                               const u8 hfunc, u8 *hash_algo);
void hclge_comm_get_rss_hash_info(struct hclge_comm_rss_cfg *rss_cfg, u8 *key,
                                  u8 *hfunc);
void hclge_comm_get_rss_indir_tbl(struct hclge_comm_rss_cfg *rss_cfg,
                                  u32 *indir, u16 rss_ind_tbl_size);
int hclge_comm_set_rss_algo_key(struct hclge_comm_hw *hw, const u8 hfunc,
                                const u8 *key);
int hclge_comm_init_rss_tuple_cmd(struct hclge_comm_rss_cfg *rss_cfg,
                                  const struct ethtool_rxfh_fields *nfc,
                                  struct hnae3_ae_dev *ae_dev,
                                  struct hclge_comm_rss_input_tuple_cmd *req);
u64 hclge_comm_convert_rss_tuple(u8 tuple_sets);
int hclge_comm_set_rss_input_tuple(struct hclge_comm_hw *hw,
                                   struct hclge_comm_rss_cfg *rss_cfg);
int hclge_comm_set_rss_indir_table(struct hnae3_ae_dev *ae_dev,
                                   struct hclge_comm_hw *hw, const u16 *indir);
int hclge_comm_rss_init_cfg(struct hnae3_handle *nic,
                            struct hnae3_ae_dev *ae_dev,
                            struct hclge_comm_rss_cfg *rss_cfg);
void hclge_comm_get_rss_tc_info(u16 rss_size, u8 hw_tc_map, u16 *tc_offset,
                                u16 *tc_valid, u16 *tc_size);
int hclge_comm_set_rss_tc_mode(struct hclge_comm_hw *hw, u16 *tc_offset,
                               u16 *tc_valid, u16 *tc_size);
int hclge_comm_set_rss_hash_key(struct hclge_comm_rss_cfg *rss_cfg,
                                struct hclge_comm_hw *hw, const u8 *key,
                                const u8 hfunc);
int hclge_comm_set_rss_tuple(struct hnae3_ae_dev *ae_dev,
                             struct hclge_comm_hw *hw,
                             struct hclge_comm_rss_cfg *rss_cfg,
                             const struct ethtool_rxfh_fields *nfc);
#endif