/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2025 Broadcom */

#ifndef _BNGE_AUXR_H_
#define _BNGE_AUXR_H_

#include <linux/auxiliary_bus.h>

#define BNGE_MIN_ROCE_CP_RINGS  2
#define BNGE_MIN_ROCE_STAT_CTXS 1

#define BNGE_MAX_ROCE_MSIX      64

struct hwrm_async_event_cmpl;
struct bnge;

struct bnge_msix_info {
        u32     vector;
        u32     ring_idx;
        u32     db_offset;
};

struct bnge_fw_msg {
        void    *msg;
        int     msg_len;
        void    *resp;
        int     resp_max_len;
        int     timeout;
};

struct bnge_auxr_info {
        void            *handle;
        u16             msix_requested;
};

enum {
        BNGE_ARDEV_ROCEV1_SUPP          = BIT(0),
        BNGE_ARDEV_ROCEV2_SUPP          = BIT(1),
        BNGE_ARDEV_MSIX_ALLOC           = BIT(2),
};

#define BNGE_ARDEV_ROCE_SUPP    (BNGE_ARDEV_ROCEV1_SUPP | \
                                 BNGE_ARDEV_ROCEV2_SUPP)

struct bnge_auxr_dev {
        struct net_device       *net;
        struct pci_dev          *pdev;
        void __iomem            *bar0;

        struct bnge_msix_info   msix_info[BNGE_MAX_ROCE_MSIX];

        u32 flags;

        struct bnge_auxr_info   *auxr_info;

        /* Doorbell BAR size in bytes mapped by L2 driver. */
        int     l2_db_size;
        /* Doorbell BAR size in bytes mapped as non-cacheable. */
        int     l2_db_size_nc;
        /* Doorbell offset in bytes within l2_db_size_nc. */
        int     l2_db_offset;

        u16             chip_num;
        u16             hw_ring_stats_size;
        u16             pf_port_id;
        unsigned long   en_state;

        u16     auxr_num_msix_vec;
        u16     auxr_num_ctxs;

        /* serialize auxr operations */
        struct mutex    auxr_dev_lock;
};

void bnge_rdma_aux_device_uninit(struct bnge_dev *bdev);
void bnge_rdma_aux_device_del(struct bnge_dev *bdev);
void bnge_rdma_aux_device_add(struct bnge_dev *bdev);
void bnge_rdma_aux_device_init(struct bnge_dev *bdev);
int bnge_register_dev(struct bnge_auxr_dev *adev,
                      void *handle);
void bnge_unregister_dev(struct bnge_auxr_dev *adev);
int bnge_send_msg(struct bnge_auxr_dev *adev, struct bnge_fw_msg *fw_msg);

#endif /* _BNGE_AUXR_H_ */