1 files changed, 90 insertions, 0 deletions
diff --git a/drivers/net/ethernet/huawei/hinic3/hinic3_hwif.h b/drivers/net/ethernet/huawei/hinic3/hinic3_hwif.h
new file mode 100644
index 000000000000..c02904e861cc
--- /dev/null
+++ b/drivers/net/ethernet/huawei/hinic3/hinic3_hwif.h
@@ -0,0 +1,90 @@
+/* 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_outbound_ctrl {
+	ENABLE_OUTBOUND  = 0x0,
+	DISABLE_OUTBOUND = 0x1,
+};
+
+enum hinic3_doorbell_ctrl {
+	ENABLE_DOORBELL  = 0,
+	DISABLE_DOORBELL = 1,
+};
+
+enum hinic3_msix_state {
+	HINIC3_MSIX_ENABLE,
+	HINIC3_MSIX_DISABLE,
+};
+
+enum hinic3_msix_auto_mask {
+	HINIC3_CLR_MSIX_AUTO_MASK,
+	HINIC3_SET_MSIX_AUTO_MASK,
+};
+
+u32 hinic3_hwif_read_reg(struct hinic3_hwif *hwif, u32 reg);
+void hinic3_hwif_write_reg(struct hinic3_hwif *hwif, u32 reg, u32 val);
+
+void hinic3_toggle_doorbell(struct hinic3_hwif *hwif,
+			    enum hinic3_doorbell_ctrl flag);
+
+int hinic3_alloc_db_addr(struct hinic3_hwdev *hwdev, void __iomem **db_base,
+			 void __iomem **dwqe_base);
+void hinic3_free_db_addr(struct hinic3_hwdev *hwdev, const u8 __iomem *db_base);
+
+int hinic3_init_hwif(struct hinic3_hwdev *hwdev);
+void hinic3_free_hwif(struct hinic3_hwdev *hwdev);
+
+void hinic3_set_msix_state(struct hinic3_hwdev *hwdev, u16 msix_idx,
+			   enum hinic3_msix_state flag);
+void hinic3_msix_intr_clear_resend_bit(struct hinic3_hwdev *hwdev, u16 msix_idx,
+				       u8 clear_resend_en);
+void hinic3_set_msix_auto_mask_state(struct hinic3_hwdev *hwdev, u16 msix_idx,
+				     enum hinic3_msix_auto_mask flag);
+
+u16 hinic3_global_func_id(struct hinic3_hwdev *hwdev);
+
+#endif