/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
/* Copyright (c) 2019-2020 Marvell International Ltd. */

#ifndef _QED_FCOE_IF_H
#define _QED_FCOE_IF_H
#include <linux/types.h>
#include <linux/qed/qed_if.h>
struct qed_fcoe_stats {
        u64 fcoe_rx_byte_cnt;
        u64 fcoe_rx_data_pkt_cnt;
        u64 fcoe_rx_xfer_pkt_cnt;
        u64 fcoe_rx_other_pkt_cnt;
        u32 fcoe_silent_drop_pkt_cmdq_full_cnt;
        u32 fcoe_silent_drop_pkt_rq_full_cnt;
        u32 fcoe_silent_drop_pkt_crc_error_cnt;
        u32 fcoe_silent_drop_pkt_task_invalid_cnt;
        u32 fcoe_silent_drop_total_pkt_cnt;

        u64 fcoe_tx_byte_cnt;
        u64 fcoe_tx_data_pkt_cnt;
        u64 fcoe_tx_xfer_pkt_cnt;
        u64 fcoe_tx_other_pkt_cnt;
};

struct qed_dev_fcoe_info {
        struct qed_dev_info common;

        void __iomem *primary_dbq_rq_addr;
        void __iomem *secondary_bdq_rq_addr;

        u64 wwpn;
        u64 wwnn;

        u8 num_cqs;
};

struct qed_fcoe_params_offload {
        dma_addr_t sq_pbl_addr;
        dma_addr_t sq_curr_page_addr;
        dma_addr_t sq_next_page_addr;

        u8 src_mac[ETH_ALEN];
        u8 dst_mac[ETH_ALEN];

        u16 tx_max_fc_pay_len;
        u16 e_d_tov_timer_val;
        u16 rec_tov_timer_val;
        u16 rx_max_fc_pay_len;
        u16 vlan_tag;

        struct fc_addr_nw s_id;
        u8 max_conc_seqs_c3;
        struct fc_addr_nw d_id;
        u8 flags;
        u8 def_q_idx;
};

#define MAX_TID_BLOCKS_FCOE (512)
struct qed_fcoe_tid {
        u32 size;               /* In bytes per task */
        u32 num_tids_per_block;
        u8 *blocks[MAX_TID_BLOCKS_FCOE];
};

struct qed_fcoe_cb_ops {
        struct qed_common_cb_ops common;
         u32 (*get_login_failures)(void *cookie);
};

/**
 * struct qed_fcoe_ops - qed FCoE operations.
 * @common:             common operations pointer
 * @fill_dev_info:      fills FCoE specific information
 *                      @param cdev
 *                      @param info
 *                      @return 0 on success, otherwise error value.
 * @register_ops:       register FCoE operations
 *                      @param cdev
 *                      @param ops - specified using qed_iscsi_cb_ops
 *                      @param cookie - driver private
 * @ll2:                light L2 operations pointer
 * @start:              fcoe in FW
 *                      @param cdev
 *                      @param tasks - qed will fill information about tasks
 *                      return 0 on success, otherwise error value.
 * @stop:               stops fcoe in FW
 *                      @param cdev
 *                      return 0 on success, otherwise error value.
 * @acquire_conn:       acquire a new fcoe connection
 *                      @param cdev
 *                      @param handle - qed will fill handle that should be
 *                              used henceforth as identifier of the
 *                              connection.
 *                      @param p_doorbell - qed will fill the address of the
 *                              doorbell.
 *                      return 0 on success, otherwise error value.
 * @release_conn:       release a previously acquired fcoe connection
 *                      @param cdev
 *                      @param handle - the connection handle.
 *                      return 0 on success, otherwise error value.
 * @offload_conn:       configures an offloaded connection
 *                      @param cdev
 *                      @param handle - the connection handle.
 *                      @param conn_info - the configuration to use for the
 *                              offload.
 *                      return 0 on success, otherwise error value.
 * @destroy_conn:       stops an offloaded connection
 *                      @param cdev
 *                      @param handle - the connection handle.
 *                      @param terminate_params
 *                      return 0 on success, otherwise error value.
 * @get_stats:          gets FCoE related statistics
 *                      @param cdev
 *                      @param stats - pointer to struck that would be filled
 *                              we stats
 *                      return 0 on success, error otherwise.
 */
struct qed_fcoe_ops {
        const struct qed_common_ops *common;

        int (*fill_dev_info)(struct qed_dev *cdev,
                             struct qed_dev_fcoe_info *info);

        void (*register_ops)(struct qed_dev *cdev,
                             struct qed_fcoe_cb_ops *ops, void *cookie);

        const struct qed_ll2_ops *ll2;

        int (*start)(struct qed_dev *cdev, struct qed_fcoe_tid *tasks);

        int (*stop)(struct qed_dev *cdev);

        int (*acquire_conn)(struct qed_dev *cdev,
                            u32 *handle,
                            u32 *fw_cid, void __iomem **p_doorbell);

        int (*release_conn)(struct qed_dev *cdev, u32 handle);

        int (*offload_conn)(struct qed_dev *cdev,
                            u32 handle,
                            struct qed_fcoe_params_offload *conn_info);
        int (*destroy_conn)(struct qed_dev *cdev,
                            u32 handle, dma_addr_t terminate_params);

        int (*get_stats)(struct qed_dev *cdev, struct qed_fcoe_stats *stats);
};

const struct qed_fcoe_ops *qed_get_fcoe_ops(void);
void qed_put_fcoe_ops(void);
#endif