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_outbound_ctrl { 49 ENABLE_OUTBOUND = 0x0, 50 DISABLE_OUTBOUND = 0x1, 51 }; 52 53 enum hinic3_doorbell_ctrl { 54 ENABLE_DOORBELL = 0, 55 DISABLE_DOORBELL = 1, 56 }; 57 58 enum hinic3_msix_state { 59 HINIC3_MSIX_ENABLE, 60 HINIC3_MSIX_DISABLE, 61 }; 62 63 enum hinic3_msix_auto_mask { 64 HINIC3_CLR_MSIX_AUTO_MASK, 65 HINIC3_SET_MSIX_AUTO_MASK, 66 }; 67 68 u32 hinic3_hwif_read_reg(struct hinic3_hwif *hwif, u32 reg); 69 void hinic3_hwif_write_reg(struct hinic3_hwif *hwif, u32 reg, u32 val); 70 71 void hinic3_toggle_doorbell(struct hinic3_hwif *hwif, 72 enum hinic3_doorbell_ctrl flag); 73 74 int hinic3_alloc_db_addr(struct hinic3_hwdev *hwdev, void __iomem **db_base, 75 void __iomem **dwqe_base); 76 void hinic3_free_db_addr(struct hinic3_hwdev *hwdev, const u8 __iomem *db_base); 77 78 int hinic3_init_hwif(struct hinic3_hwdev *hwdev); 79 void hinic3_free_hwif(struct hinic3_hwdev *hwdev); 80 81 void hinic3_set_msix_state(struct hinic3_hwdev *hwdev, u16 msix_idx, 82 enum hinic3_msix_state flag); 83 void hinic3_msix_intr_clear_resend_bit(struct hinic3_hwdev *hwdev, u16 msix_idx, 84 u8 clear_resend_en); 85 void hinic3_set_msix_auto_mask_state(struct hinic3_hwdev *hwdev, u16 msix_idx, 86 enum hinic3_msix_auto_mask flag); 87 88 u16 hinic3_global_func_id(struct hinic3_hwdev *hwdev); 89 90 #endif 91