1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved. */ 3 4 #ifndef _HINIC3_HWIF_H_ 5 #define _HINIC3_HWIF_H_ 6 7 #include <linux/build_bug.h> 8 #include <linux/spinlock_types.h> 9 10 struct hinic3_hwdev; 11 12 enum hinic3_func_type { 13 HINIC3_FUNC_TYPE_VF = 1, 14 }; 15 16 struct hinic3_db_area { 17 unsigned long *db_bitmap_array; 18 u32 db_max_areas; 19 /* protect doorbell area alloc and free */ 20 spinlock_t idx_lock; 21 }; 22 23 struct hinic3_func_attr { 24 enum hinic3_func_type func_type; 25 u16 func_global_idx; 26 u16 global_vf_id_of_pf; 27 u16 num_irqs; 28 u16 num_sq; 29 u8 port_to_port_idx; 30 u8 pci_intf_idx; 31 u8 ppf_idx; 32 u8 num_aeqs; 33 u8 num_ceqs; 34 u8 msix_flex_en; 35 }; 36 37 static_assert(sizeof(struct hinic3_func_attr) == 20); 38 39 struct hinic3_hwif { 40 u8 __iomem *cfg_regs_base; 41 u64 db_base_phy; 42 u64 db_dwqe_len; 43 u8 __iomem *db_base; 44 struct hinic3_db_area db_area; 45 struct hinic3_func_attr attr; 46 }; 47 48 enum hinic3_msix_state { 49 HINIC3_MSIX_ENABLE, 50 HINIC3_MSIX_DISABLE, 51 }; 52 53 enum hinic3_msix_auto_mask { 54 HINIC3_CLR_MSIX_AUTO_MASK, 55 HINIC3_SET_MSIX_AUTO_MASK, 56 }; 57 58 u32 hinic3_hwif_read_reg(struct hinic3_hwif *hwif, u32 reg); 59 void hinic3_hwif_write_reg(struct hinic3_hwif *hwif, u32 reg, u32 val); 60 61 int hinic3_alloc_db_addr(struct hinic3_hwdev *hwdev, void __iomem **db_base, 62 void __iomem **dwqe_base); 63 void hinic3_free_db_addr(struct hinic3_hwdev *hwdev, const u8 __iomem *db_base); 64 65 void hinic3_set_msix_state(struct hinic3_hwdev *hwdev, u16 msix_idx, 66 enum hinic3_msix_state flag); 67 void hinic3_msix_intr_clear_resend_bit(struct hinic3_hwdev *hwdev, u16 msix_idx, 68 u8 clear_resend_en); 69 void hinic3_set_msix_auto_mask_state(struct hinic3_hwdev *hwdev, u16 msix_idx, 70 enum hinic3_msix_auto_mask flag); 71 72 u16 hinic3_global_func_id(struct hinic3_hwdev *hwdev); 73 74 #endif 75