1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Huawei HiNIC PCI Express Linux driver 4 * Copyright(c) 2017 Huawei Technologies Co., Ltd 5 */ 6 7 #ifndef HINIC_CMDQ_H 8 #define HINIC_CMDQ_H 9 10 #include <linux/types.h> 11 #include <linux/spinlock.h> 12 #include <linux/completion.h> 13 #include <linux/pci.h> 14 15 #include "hinic_hw_if.h" 16 #include "hinic_hw_wq.h" 17 18 #define HINIC_CMDQ_CTXT_CURR_WQE_PAGE_PFN_SHIFT 0 19 #define HINIC_CMDQ_CTXT_EQ_ID_SHIFT 56 20 #define HINIC_CMDQ_CTXT_CEQ_ARM_SHIFT 61 21 #define HINIC_CMDQ_CTXT_CEQ_EN_SHIFT 62 22 #define HINIC_CMDQ_CTXT_WRAPPED_SHIFT 63 23 24 #define HINIC_CMDQ_CTXT_CURR_WQE_PAGE_PFN_MASK 0xFFFFFFFFFFFFF 25 #define HINIC_CMDQ_CTXT_EQ_ID_MASK 0x1F 26 #define HINIC_CMDQ_CTXT_CEQ_ARM_MASK 0x1 27 #define HINIC_CMDQ_CTXT_CEQ_EN_MASK 0x1 28 #define HINIC_CMDQ_CTXT_WRAPPED_MASK 0x1 29 30 #define HINIC_CMDQ_CTXT_PAGE_INFO_SET(val, member) \ 31 (((u64)(val) & HINIC_CMDQ_CTXT_##member##_MASK) \ 32 << HINIC_CMDQ_CTXT_##member##_SHIFT) 33 34 #define HINIC_CMDQ_CTXT_PAGE_INFO_GET(val, member) \ 35 (((u64)(val) >> HINIC_CMDQ_CTXT_##member##_SHIFT) \ 36 & HINIC_CMDQ_CTXT_##member##_MASK) 37 38 #define HINIC_CMDQ_CTXT_PAGE_INFO_CLEAR(val, member) \ 39 ((val) & (~((u64)HINIC_CMDQ_CTXT_##member##_MASK \ 40 << HINIC_CMDQ_CTXT_##member##_SHIFT))) 41 42 #define HINIC_CMDQ_CTXT_WQ_BLOCK_PFN_SHIFT 0 43 #define HINIC_CMDQ_CTXT_CI_SHIFT 52 44 45 #define HINIC_CMDQ_CTXT_WQ_BLOCK_PFN_MASK 0xFFFFFFFFFFFFF 46 #define HINIC_CMDQ_CTXT_CI_MASK 0xFFF 47 48 #define HINIC_CMDQ_CTXT_BLOCK_INFO_SET(val, member) \ 49 (((u64)(val) & HINIC_CMDQ_CTXT_##member##_MASK) \ 50 << HINIC_CMDQ_CTXT_##member##_SHIFT) 51 52 #define HINIC_CMDQ_CTXT_BLOCK_INFO_GET(val, member) \ 53 (((u64)(val) >> HINIC_CMDQ_CTXT_##member##_SHIFT) \ 54 & HINIC_CMDQ_CTXT_##member##_MASK) 55 56 #define HINIC_CMDQ_CTXT_BLOCK_INFO_CLEAR(val, member) \ 57 ((val) & (~((u64)HINIC_CMDQ_CTXT_##member##_MASK \ 58 << HINIC_CMDQ_CTXT_##member##_SHIFT))) 59 60 #define HINIC_SAVED_DATA_ARM_SHIFT 31 61 62 #define HINIC_SAVED_DATA_ARM_MASK 0x1 63 64 #define HINIC_SAVED_DATA_SET(val, member) \ 65 (((u32)(val) & HINIC_SAVED_DATA_##member##_MASK) \ 66 << HINIC_SAVED_DATA_##member##_SHIFT) 67 68 #define HINIC_SAVED_DATA_GET(val, member) \ 69 (((val) >> HINIC_SAVED_DATA_##member##_SHIFT) \ 70 & HINIC_SAVED_DATA_##member##_MASK) 71 72 #define HINIC_SAVED_DATA_CLEAR(val, member) \ 73 ((val) & (~(HINIC_SAVED_DATA_##member##_MASK \ 74 << HINIC_SAVED_DATA_##member##_SHIFT))) 75 76 #define HINIC_CMDQ_DB_INFO_HI_PROD_IDX_SHIFT 0 77 #define HINIC_CMDQ_DB_INFO_PATH_SHIFT 23 78 #define HINIC_CMDQ_DB_INFO_CMDQ_TYPE_SHIFT 24 79 #define HINIC_CMDQ_DB_INFO_DB_TYPE_SHIFT 27 80 81 #define HINIC_CMDQ_DB_INFO_HI_PROD_IDX_MASK 0xFF 82 #define HINIC_CMDQ_DB_INFO_PATH_MASK 0x1 83 #define HINIC_CMDQ_DB_INFO_CMDQ_TYPE_MASK 0x7 84 #define HINIC_CMDQ_DB_INFO_DB_TYPE_MASK 0x1F 85 86 #define HINIC_CMDQ_DB_INFO_SET(val, member) \ 87 (((u32)(val) & HINIC_CMDQ_DB_INFO_##member##_MASK) \ 88 << HINIC_CMDQ_DB_INFO_##member##_SHIFT) 89 90 #define HINIC_CMDQ_BUF_SIZE 2048 91 92 #define HINIC_CMDQ_BUF_HW_RSVD 8 93 #define HINIC_CMDQ_MAX_DATA_SIZE (HINIC_CMDQ_BUF_SIZE - \ 94 HINIC_CMDQ_BUF_HW_RSVD) 95 96 enum hinic_cmdq_type { 97 HINIC_CMDQ_SYNC, 98 99 HINIC_MAX_CMDQ_TYPES, 100 }; 101 102 enum hinic_set_arm_qtype { 103 HINIC_SET_ARM_CMDQ, 104 }; 105 106 enum hinic_cmd_ack_type { 107 HINIC_CMD_ACK_TYPE_CMDQ, 108 }; 109 110 struct hinic_cmdq_buf { 111 void *buf; 112 dma_addr_t dma_addr; 113 size_t size; 114 }; 115 116 struct hinic_cmdq_arm_bit { 117 u32 q_type; 118 u32 q_id; 119 }; 120 121 struct hinic_cmdq_ctxt_info { 122 u64 curr_wqe_page_pfn; 123 u64 wq_block_pfn; 124 }; 125 126 struct hinic_cmdq_ctxt { 127 u8 status; 128 u8 version; 129 u8 rsvd0[6]; 130 131 u16 func_idx; 132 u8 cmdq_type; 133 u8 ppf_idx; 134 135 u8 rsvd2[4]; 136 137 struct hinic_cmdq_ctxt_info ctxt_info; 138 }; 139 140 struct hinic_cmdq { 141 struct hinic_hwdev *hwdev; 142 143 struct hinic_wq *wq; 144 145 enum hinic_cmdq_type cmdq_type; 146 int wrapped; 147 148 /* Lock for keeping the doorbell order */ 149 spinlock_t cmdq_lock; 150 151 struct completion **done; 152 int **errcode; 153 154 /* doorbell area */ 155 void __iomem *db_base; 156 }; 157 158 struct hinic_cmdqs { 159 struct hinic_hwif *hwif; 160 161 struct dma_pool *cmdq_buf_pool; 162 163 struct hinic_wq *saved_wqs; 164 165 struct hinic_cmdq_pages cmdq_pages; 166 167 struct hinic_cmdq cmdq[HINIC_MAX_CMDQ_TYPES]; 168 }; 169 170 int hinic_alloc_cmdq_buf(struct hinic_cmdqs *cmdqs, 171 struct hinic_cmdq_buf *cmdq_buf); 172 173 void hinic_free_cmdq_buf(struct hinic_cmdqs *cmdqs, 174 struct hinic_cmdq_buf *cmdq_buf); 175 176 int hinic_cmdq_direct_resp(struct hinic_cmdqs *cmdqs, 177 enum hinic_mod_type mod, u8 cmd, 178 struct hinic_cmdq_buf *buf_in, u64 *out_param); 179 180 int hinic_set_arm_bit(struct hinic_cmdqs *cmdqs, 181 enum hinic_set_arm_qtype q_type, u32 q_id); 182 183 int hinic_init_cmdqs(struct hinic_cmdqs *cmdqs, struct hinic_hwif *hwif, 184 void __iomem **db_area); 185 186 void hinic_free_cmdqs(struct hinic_cmdqs *cmdqs); 187 188 #endif 189