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1/* SPDX-License-Identifier: GPL-2.0+ */2/* Copyright (c) 2023 Hisilicon Limited. */3 4#ifndef __KUNPENG_HCCS_H__5#define __KUNPENG_HCCS_H__6 7/*8 * |--------------- Chip0 ---------------|---------------- ChipN -------------|9 * |--------Die0-------|--------DieN-------|--------Die0-------|-------DieN-------|10 * | P0 | P1 | P2 | P3 | P0 | P1 | P2 | P3 | P0 | P1 | P2 | P3 |P0 | P1 | P2 | P3 |11 */12 13/*14 * This value cannot be 255, otherwise the loop of the multi-BD communication15 * case cannot end.16 */17#define HCCS_DIE_MAX_PORT_ID 25418 19struct hccs_port_info {20 u8 port_id;21 u8 port_type;22 u8 lane_mode;23 bool enable; /* if the port is enabled */24 struct kobject kobj;25 bool dir_created;26 struct hccs_die_info *die; /* point to the die the port is located */27};28 29struct hccs_die_info {30 u8 die_id;31 u8 port_num;32 u8 min_port_id;33 u8 max_port_id;34 struct hccs_port_info *ports;35 struct kobject kobj;36 bool dir_created;37 struct hccs_chip_info *chip; /* point to the chip the die is located */38};39 40struct hccs_chip_info {41 u8 chip_id;42 u8 die_num;43 struct hccs_die_info *dies;44 struct kobject kobj;45 struct hccs_dev *hdev;46};47 48struct hccs_mbox_client_info {49 struct mbox_client client;50 struct mbox_chan *mbox_chan;51 struct pcc_mbox_chan *pcc_chan;52 u64 deadline_us;53 void __iomem *pcc_comm_addr;54 struct completion done;55};56 57struct hccs_desc;58 59struct hccs_verspecific_data {60 void (*rx_callback)(struct mbox_client *cl, void *mssg);61 int (*wait_cmd_complete)(struct hccs_dev *hdev);62 void (*fill_pcc_shared_mem)(struct hccs_dev *hdev,63 u8 cmd, struct hccs_desc *desc,64 void __iomem *comm_space,65 u16 space_size);66 u16 shared_mem_size;67 bool has_txdone_irq;68};69 70struct hccs_dev {71 struct device *dev;72 struct acpi_device *acpi_dev;73 const struct hccs_verspecific_data *verspec_data;74 u64 caps;75 u8 chip_num;76 struct hccs_chip_info *chips;77 u8 chan_id;78 struct mutex lock;79 struct hccs_mbox_client_info cl_info;80};81 82#define HCCS_SERDES_MODULE_CODE 0x3283enum hccs_subcmd_type {84 HCCS_GET_CHIP_NUM = 0x1,85 HCCS_GET_DIE_NUM,86 HCCS_GET_DIE_INFO,87 HCCS_GET_DIE_PORT_INFO,88 HCCS_GET_DEV_CAP,89 HCCS_GET_PORT_LINK_STATUS,90 HCCS_GET_PORT_CRC_ERR_CNT,91 HCCS_GET_DIE_PORTS_LANE_STA,92 HCCS_GET_DIE_PORTS_LINK_STA,93 HCCS_GET_DIE_PORTS_CRC_ERR_CNT,94 HCCS_SUB_CMD_MAX = 255,95};96 97struct hccs_die_num_req_param {98 u8 chip_id;99};100 101struct hccs_die_info_req_param {102 u8 chip_id;103 u8 die_idx;104};105 106struct hccs_die_info_rsp_data {107 u8 die_id;108 u8 port_num;109 u8 min_port_id;110 u8 max_port_id;111};112 113struct hccs_port_attr {114 u8 port_id;115 u8 port_type;116 u8 lane_mode;117 u8 enable : 1; /* if the port is enabled */118 u16 rsv[2];119};120 121/*122 * The common command request for getting the information of all HCCS port on123 * specified DIE.124 */125struct hccs_die_comm_req_param {126 u8 chip_id;127 u8 die_id; /* id in hardware */128};129 130/* The common command request for getting the information of a specific port */131struct hccs_port_comm_req_param {132 u8 chip_id;133 u8 die_id;134 u8 port_id;135};136 137#define HCCS_PORT_RESET 1138#define HCCS_PORT_SETUP 2139#define HCCS_PORT_CONFIG 3140#define HCCS_PORT_READY 4141struct hccs_link_status {142 u8 lane_mask; /* indicate which lanes are used. */143 u8 link_fsm : 3; /* link fsm, 1: reset 2: setup 3: config 4: link-up */144 u8 lane_num : 5; /* current lane number */145};146 147struct hccs_req_head {148 u8 module_code; /* set to 0x32 for serdes */149 u8 start_id;150 u8 rsv[2];151};152 153struct hccs_rsp_head {154 u8 data_len;155 u8 next_id;156 u8 rsv[2];157};158 159struct hccs_fw_inner_head {160 u8 retStatus; /* 0: success, other: failure */161 u8 rsv[7];162};163 164#define HCCS_PCC_SHARE_MEM_BYTES 64165#define HCCS_FW_INNER_HEAD_BYTES 8166#define HCCS_RSP_HEAD_BYTES 4167 168#define HCCS_MAX_RSP_DATA_BYTES (HCCS_PCC_SHARE_MEM_BYTES - \169 HCCS_FW_INNER_HEAD_BYTES - \170 HCCS_RSP_HEAD_BYTES)171#define HCCS_MAX_RSP_DATA_SIZE_MAX (HCCS_MAX_RSP_DATA_BYTES / 4)172 173/*174 * Note: Actual available size of data field also depands on the PCC header175 * bytes of the specific type. Driver needs to copy the response data in the176 * communication space based on the real length.177 */178struct hccs_rsp_desc {179 struct hccs_fw_inner_head fw_inner_head; /* 8 Bytes */180 struct hccs_rsp_head rsp_head; /* 4 Bytes */181 u32 data[HCCS_MAX_RSP_DATA_SIZE_MAX];182};183 184#define HCCS_REQ_HEAD_BYTES 4185#define HCCS_MAX_REQ_DATA_BYTES (HCCS_PCC_SHARE_MEM_BYTES - \186 HCCS_REQ_HEAD_BYTES)187#define HCCS_MAX_REQ_DATA_SIZE_MAX (HCCS_MAX_REQ_DATA_BYTES / 4)188 189/*190 * Note: Actual available size of data field also depands on the PCC header191 * bytes of the specific type. Driver needs to copy the request data to the192 * communication space based on the real length.193 */194struct hccs_req_desc {195 struct hccs_req_head req_head; /* 4 Bytes */196 u32 data[HCCS_MAX_REQ_DATA_SIZE_MAX];197};198 199struct hccs_desc {200 union {201 struct hccs_req_desc req;202 struct hccs_rsp_desc rsp;203 };204};205 206#endif /* __KUNPENG_HCCS_H__ */207