Quelle  hinic3_hwif.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */

#ifndef _HINIC3_HWIF_H_
#define _HINIC3_HWIF_H_

#include <linux/build_bug.h>
#include <linux/spinlock_types.h>

struct hinic3_hwdev;

enum hinic3_func_type {
 HINIC3_FUNC_TYPE_VF = 1,
};

struct hinic3_db_area {
 unsigned long *db_bitmap_array;
 u32           db_max_areas;
 /* protect doorbell area alloc and free */
 spinlock_t    idx_lock;
};

struct hinic3_func_attr {
 enum hinic3_func_type func_type;
 u16                   func_global_idx;
 u16                   global_vf_id_of_pf;
 u16                   num_irqs;
 u16                   num_sq;
 u8                    port_to_port_idx;
 u8                    pci_intf_idx;
 u8                    ppf_idx;
 u8                    num_aeqs;
 u8                    num_ceqs;
 u8                    msix_flex_en;
};

static_assert(sizeof(struct hinic3_func_attr) == 20);

struct hinic3_hwif {
 u8 __iomem              *cfg_regs_base;
 u64                     db_base_phy;
 u64                     db_dwqe_len;
 u8 __iomem              *db_base;
 struct hinic3_db_area   db_area;
 struct hinic3_func_attr attr;
};

enum hinic3_msix_state {
 HINIC3_MSIX_ENABLE,
 HINIC3_MSIX_DISABLE,
};

void hinic3_set_msix_state(struct hinic3_hwdev *hwdev, u16 msix_idx,
      enum hinic3_msix_state flag);

u16 hinic3_global_func_id(struct hinic3_hwdev *hwdev);

#endif