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/* SPDX-License-Identifier: GPL-2.0+ */
/* Copyright (c) 2023 Hisilicon Limited. */
#ifndef __KUNPENG_HCCS_H__
#define __KUNPENG_HCCS_H__
/*
* |--------------- Chip0 ---------------|---------------- ChipN -------------|
* |--------Die0-------|--------DieN-------|--------Die0-------|-------DieN-------|
* | P0 | P1 | P2 | P3 | P0 | P1 | P2 | P3 | P0 | P1 | P2 | P3 |P0 | P1 | P2 | P3 |
*/
/*
* This value cannot be 255, otherwise the loop of the multi-BD communication
* case cannot end.
*/
#define HCCS_DIE_MAX_PORT_ID 254
struct hccs_port_info {
u8 port_id;
u8 port_type;
u8 lane_mode;
bool enable; /* if the port is enabled */
struct kobject kobj;
bool dir_created;
struct hccs_die_info *die; /* point to the die the port is located */
};
struct hccs_die_info {
u8 die_id;
u8 port_num;
u8 min_port_id;
u8 max_port_id;
struct hccs_port_info *ports;
struct kobject kobj;
bool dir_created;
struct hccs_chip_info *chip; /* point to the chip the die is located */
};
struct hccs_chip_info {
u8 chip_id;
u8 die_num;
struct hccs_die_info *dies;
struct kobject kobj;
struct hccs_dev *hdev;
};
struct hccs_mbox_client_info {
struct mbox_client client;
struct mbox_chan *mbox_chan;
struct pcc_mbox_chan *pcc_chan;
u64 deadline_us;
void __iomem *pcc_comm_addr;
struct completion done;
};
struct hccs_desc;
struct hccs_verspecific_data {
void (*rx_callback)(struct mbox_client *cl, void *mssg);
int (*wait_cmd_complete)(struct hccs_dev *hdev);
void (*fill_pcc_shared_mem)(struct hccs_dev *hdev,
u8 cmd, struct hccs_desc *desc,
void __iomem *comm_space,
u16 space_size);
u16 shared_mem_size;
bool has_txdone_irq;
};
struct hccs_dev {
struct device *dev;
struct acpi_device *acpi_dev;
const struct hccs_verspecific_data *verspec_data;
u64 caps;
u8 chip_num;
struct hccs_chip_info *chips;
u8 chan_id;
struct mutex lock;
struct hccs_mbox_client_info cl_info;
};
#define HCCS_SERDES_MODULE_CODE 0x32
enum hccs_subcmd_type {
HCCS_GET_CHIP_NUM = 0x1,
HCCS_GET_DIE_NUM,
HCCS_GET_DIE_INFO,
HCCS_GET_DIE_PORT_INFO,
HCCS_GET_DEV_CAP,
HCCS_GET_PORT_LINK_STATUS,
HCCS_GET_PORT_CRC_ERR_CNT,
HCCS_GET_DIE_PORTS_LANE_STA,
HCCS_GET_DIE_PORTS_LINK_STA,
HCCS_GET_DIE_PORTS_CRC_ERR_CNT,
HCCS_SUB_CMD_MAX = 255,
};
struct hccs_die_num_req_param {
u8 chip_id;
};
struct hccs_die_info_req_param {
u8 chip_id;
u8 die_idx;
};
struct hccs_die_info_rsp_data {
u8 die_id;
u8 port_num;
u8 min_port_id;
u8 max_port_id;
};
struct hccs_port_attr {
u8 port_id;
u8 port_type;
u8 lane_mode;
u8 enable : 1; /* if the port is enabled */
u16 rsv[2];
};
/*
* The common command request for getting the information of all HCCS port on
* specified DIE.
*/
struct hccs_die_comm_req_param {
u8 chip_id;
u8 die_id; /* id in hardware */
};
/* The common command request for getting the information of a specific port */
struct hccs_port_comm_req_param {
u8 chip_id;
u8 die_id;
u8 port_id;
};
#define HCCS_PORT_RESET 1
#define HCCS_PORT_SETUP 2
#define HCCS_PORT_CONFIG 3
#define HCCS_PORT_READY 4
struct hccs_link_status {
u8 lane_mask; /* indicate which lanes are used. */
u8 link_fsm : 3; /* link fsm, 1: reset 2: setup 3: config 4: link-up */
u8 lane_num : 5; /* current lane number */
};
struct hccs_req_head {
u8 module_code; /* set to 0x32 for serdes */
u8 start_id;
u8 rsv[2];
};
struct hccs_rsp_head {
u8 data_len;
u8 next_id;
u8 rsv[2];
};
struct hccs_fw_inner_head {
u8 retStatus; /* 0: success, other: failure */
u8 rsv[7];
};
#define HCCS_PCC_SHARE_MEM_BYTES 64
#define HCCS_FW_INNER_HEAD_BYTES 8
#define HCCS_RSP_HEAD_BYTES 4
#define HCCS_MAX_RSP_DATA_BYTES (HCCS_PCC_SHARE_MEM_BYTES - \
HCCS_FW_INNER_HEAD_BYTES - \
HCCS_RSP_HEAD_BYTES)
#define HCCS_MAX_RSP_DATA_SIZE_MAX (HCCS_MAX_RSP_DATA_BYTES / 4)
/*
* Note: Actual available size of data field also depands on the PCC header
* bytes of the specific type. Driver needs to copy the response data in the
* communication space based on the real length.
*/
struct hccs_rsp_desc {
struct hccs_fw_inner_head fw_inner_head; /* 8 Bytes */
struct hccs_rsp_head rsp_head; /* 4 Bytes */
u32 data[HCCS_MAX_RSP_DATA_SIZE_MAX];
};
#define HCCS_REQ_HEAD_BYTES 4
#define HCCS_MAX_REQ_DATA_BYTES (HCCS_PCC_SHARE_MEM_BYTES - \
HCCS_REQ_HEAD_BYTES)
#define HCCS_MAX_REQ_DATA_SIZE_MAX (HCCS_MAX_REQ_DATA_BYTES / 4)
/*
* Note: Actual available size of data field also depands on the PCC header
* bytes of the specific type. Driver needs to copy the request data to the
* communication space based on the real length.
*/
struct hccs_req_desc {
struct hccs_req_head req_head; /* 4 Bytes */
u32 data[HCCS_MAX_REQ_DATA_SIZE_MAX];
};
struct hccs_desc {
union {
struct hccs_req_desc req;
struct hccs_rsp_desc rsp;
};
};
#endif /* __KUNPENG_HCCS_H__ */
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