/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
/* QLogic qed NIC Driver
 * Copyright (c) 2015-2017  QLogic Corporation
 * Copyright (c) 2019-2020 Marvell International Ltd.
 */

#ifndef _QED_DCBX_H
#define _QED_DCBX_H
#include <linux/types.h>
#include <linux/slab.h>
#include "qed.h"
#include "qed_hsi.h"
#include "qed_hw.h"
#include "qed_mcp.h"
#include "qed_reg_addr.h"

#define DCBX_CONFIG_MAX_APP_PROTOCOL    4

enum qed_mib_read_type {
        QED_DCBX_OPERATIONAL_MIB,
        QED_DCBX_REMOTE_MIB,
        QED_DCBX_LOCAL_MIB,
        QED_DCBX_REMOTE_LLDP_MIB,
        QED_DCBX_LOCAL_LLDP_MIB
};

struct qed_dcbx_app_data {
        bool enable;            /* DCB enabled */
        u8 update;              /* Update indication */
        u8 priority;            /* Priority */
        u8 tc;                  /* Traffic Class */
        bool dont_add_vlan0;    /* Do not insert a vlan tag with id 0 */
};

#define QED_DCBX_VERSION_DISABLED       0
#define QED_DCBX_VERSION_IEEE           1
#define QED_DCBX_VERSION_CEE            2

struct qed_dcbx_set {
#define QED_DCBX_OVERRIDE_STATE         BIT(0)
#define QED_DCBX_OVERRIDE_PFC_CFG       BIT(1)
#define QED_DCBX_OVERRIDE_ETS_CFG       BIT(2)
#define QED_DCBX_OVERRIDE_APP_CFG       BIT(3)
#define QED_DCBX_OVERRIDE_DSCP_CFG      BIT(4)
        u32 override_flags;
        bool enabled;
        struct qed_dcbx_admin_params config;
        u32 ver_num;
};

struct qed_dcbx_results {
        bool dcbx_enabled;
        u8 pf_id;
        struct qed_dcbx_app_data arr[DCBX_MAX_PROTOCOL_TYPE];
};

struct qed_dcbx_app_metadata {
        enum dcbx_protocol_type id;
        char *name;
        enum qed_pci_personality personality;
};

struct qed_dcbx_info {
        struct lldp_status_params_s lldp_remote[LLDP_MAX_LLDP_AGENTS];
        struct lldp_config_params_s lldp_local[LLDP_MAX_LLDP_AGENTS];
        struct dcbx_local_params local_admin;
        struct qed_dcbx_results results;
        struct dcbx_mib operational;
        struct dcbx_mib remote;
        struct qed_dcbx_set set;
        struct qed_dcbx_get get;
        u8 dcbx_cap;
};

struct qed_dcbx_mib_meta_data {
        struct lldp_config_params_s *lldp_local;
        struct lldp_status_params_s *lldp_remote;
        struct dcbx_local_params *local_admin;
        struct dcbx_mib *mib;
        size_t size;
        u32 addr;
};

extern const struct qed_eth_dcbnl_ops qed_dcbnl_ops_pass;

#ifdef CONFIG_DCB
int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
                               struct qed_dcbx_set *params);

int qed_dcbx_config_params(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
                           struct qed_dcbx_set *params, bool hw_commit);
#endif

/* QED local interface routines */
int
qed_dcbx_mib_update_event(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt,
                          enum qed_mib_read_type type);

int qed_dcbx_info_alloc(struct qed_hwfn *p_hwfn);
void qed_dcbx_info_free(struct qed_hwfn *p_hwfn);
void qed_dcbx_set_pf_update_params(struct qed_dcbx_results *p_src,
                                   struct pf_update_ramrod_data *p_dest);

#define QED_DCBX_DEFAULT_TC     0

u8 qed_dcbx_get_priority_tc(struct qed_hwfn *p_hwfn, u8 pri);
#endif