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_PF = 0, 14 HINIC3_FUNC_TYPE_VF = 1, 15 }; 16 17 struct hinic3_db_area { 18 unsigned long *db_bitmap_array; 19 u32 db_max_areas; 20 /* protect doorbell area alloc and free */ 21 spinlock_t idx_lock; 22 }; 23 24 struct hinic3_func_attr { 25 enum hinic3_func_type func_type; 26 u16 func_global_idx; 27 u16 global_vf_id_of_pf; 28 u16 num_irqs; 29 u16 num_sq; 30 u8 port_to_port_idx; 31 u8 pci_intf_idx; 32 u8 ppf_idx; 33 u8 num_aeqs; 34 u8 num_ceqs; 35 u8 msix_flex_en; 36 }; 37 38 static_assert(sizeof(struct hinic3_func_attr) == 20); 39 40 struct hinic3_hwif { 41 u8 __iomem *cfg_regs_base; 42 u8 __iomem *intr_regs_base; 43 u8 __iomem *mgmt_regs_base; 44 u64 db_base_phy; 45 u64 db_dwqe_len; 46 u8 __iomem *db_base; 47 struct hinic3_db_area db_area; 48 struct hinic3_func_attr attr; 49 }; 50 51 enum hinic3_outbound_ctrl { 52 ENABLE_OUTBOUND = 0x0, 53 DISABLE_OUTBOUND = 0x1, 54 }; 55 56 enum hinic3_pf_status { 57 HINIC3_PF_STATUS_INIT = 0x0, 58 HINIC3_PF_STATUS_ACTIVE_FLAG = 0x11, 59 HINIC3_PF_STATUS_FLR_START_FLAG = 0x12, 60 HINIC3_PF_STATUS_FLR_FINISH_FLAG = 0x13, 61 }; 62 63 enum hinic3_doorbell_ctrl { 64 ENABLE_DOORBELL = 0, 65 DISABLE_DOORBELL = 1, 66 }; 67 68 enum hinic3_msix_state { 69 HINIC3_MSIX_ENABLE, 70 HINIC3_MSIX_DISABLE, 71 }; 72 73 enum hinic3_msix_auto_mask { 74 HINIC3_CLR_MSIX_AUTO_MASK, 75 HINIC3_SET_MSIX_AUTO_MASK, 76 }; 77 78 #define HINIC3_FUNC_TYPE(hwdev) ((hwdev)->hwif->attr.func_type) 79 #define HINIC3_IS_PF(hwdev) \ 80 (HINIC3_FUNC_TYPE(hwdev) == HINIC3_FUNC_TYPE_PF) 81 #define HINIC3_IS_VF(hwdev) \ 82 (HINIC3_FUNC_TYPE(hwdev) == HINIC3_FUNC_TYPE_VF) 83 84 u32 hinic3_hwif_read_reg(struct hinic3_hwif *hwif, u32 reg); 85 void hinic3_hwif_write_reg(struct hinic3_hwif *hwif, u32 reg, u32 val); 86 87 void hinic3_toggle_doorbell(struct hinic3_hwif *hwif, 88 enum hinic3_doorbell_ctrl flag); 89 90 int hinic3_alloc_db_addr(struct hinic3_hwdev *hwdev, void __iomem **db_base, 91 void __iomem **dwqe_base); 92 void hinic3_free_db_addr(struct hinic3_hwdev *hwdev, const u8 __iomem *db_base); 93 94 void hinic3_set_pf_status(struct hinic3_hwif *hwif, 95 enum hinic3_pf_status status); 96 enum hinic3_pf_status hinic3_get_pf_status(struct hinic3_hwif *hwif); 97 98 int hinic3_init_hwif(struct hinic3_hwdev *hwdev); 99 void hinic3_free_hwif(struct hinic3_hwdev *hwdev); 100 101 void hinic3_set_msix_state(struct hinic3_hwdev *hwdev, u16 msix_idx, 102 enum hinic3_msix_state flag); 103 void hinic3_msix_intr_clear_resend_bit(struct hinic3_hwdev *hwdev, u16 msix_idx, 104 u8 clear_resend_en); 105 void hinic3_set_msix_auto_mask_state(struct hinic3_hwdev *hwdev, u16 msix_idx, 106 enum hinic3_msix_auto_mask flag); 107 108 u16 hinic3_global_func_id(struct hinic3_hwdev *hwdev); 109 u8 hinic3_pf_id_of_vf(struct hinic3_hwdev *hwdev); 110 u16 hinic3_glb_pf_vf_offset(struct hinic3_hwdev *hwdev); 111 u8 hinic3_ppf_idx(struct hinic3_hwdev *hwdev); 112 113 #endif 114