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/* SPDX-License-Identifier: GPL-2.0-only
*
* Copyright (C) 2020-2021 Intel Corporation.
*/
#ifndef _IOSM_IPC_DEVLINK_H_
#define _IOSM_IPC_DEVLINK_H_
#include <net/devlink.h>
#include "iosm_ipc_imem.h"
#include "iosm_ipc_imem_ops.h"
#include "iosm_ipc_pcie.h"
/* MAX file name length */
#define IOSM_MAX_FILENAME_LEN 32
/* EBL response size */
#define IOSM_EBL_RSP_SIZE 76
/* MAX number of regions supported */
#define IOSM_NOF_CD_REGION 6
/* MAX number of SNAPSHOTS supported */
#define MAX_SNAPSHOTS 1
/* Default Coredump file size */
#define REPORT_JSON_SIZE 0x800
#define COREDUMP_FCD_SIZE 0x10E00000
#define CDD_LOG_SIZE 0x30000
#define EEPROM_BIN_SIZE 0x10000
#define BOOTCORE_TRC_BIN_SIZE 0x8000
#define BOOTCORE_PREV_TRC_BIN_SIZE 0x20000
/**
* enum iosm_devlink_param_id - Enum type to different devlink params
* @IOSM_DEVLINK_PARAM_ID_BASE: Devlink param base ID
* @IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH: Set if full erase required
* @IOSM_DEVLINK_PARAM_ID_DOWNLOAD_REGION: Set if fls file to be
* flashed is Loadmap/region file
* @IOSM_DEVLINK_PARAM_ID_ADDRESS: Address of the region to be
* flashed
* @IOSM_DEVLINK_PARAM_ID_REGION_COUNT: Max region count
*/
enum iosm_devlink_param_id {
IOSM_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
IOSM_DEVLINK_PARAM_ID_ERASE_FULL_FLASH,
IOSM_DEVLINK_PARAM_ID_DOWNLOAD_REGION,
IOSM_DEVLINK_PARAM_ID_ADDRESS,
IOSM_DEVLINK_PARAM_ID_REGION_COUNT,
};
/**
* enum iosm_rpsi_cmd_code - Enum type for RPSI command list
* @rpsi_cmd_code_ebl: Command to load ebl
* @rpsi_cmd_coredump_start: Command to get list of files and
* file size info from PSI
* @rpsi_cmd_coredump_get: Command to get the coredump data
* @rpsi_cmd_coredump_end: Command to stop receiving the coredump
*/
enum iosm_rpsi_cmd_code {
rpsi_cmd_code_ebl = 0x02,
rpsi_cmd_coredump_start = 0x10,
rpsi_cmd_coredump_get = 0x11,
rpsi_cmd_coredump_end = 0x12,
};
/**
* enum iosm_flash_comp_type - Enum for different flash component types
* @FLASH_COMP_TYPE_PSI: PSI flash comp type
* @FLASH_COMP_TYPE_EBL: EBL flash comp type
* @FLASH_COMP_TYPE_FLS: FLS flash comp type
* @FLASH_COMP_TYPE_INVAL: Invalid flash comp type
*/
enum iosm_flash_comp_type {
FLASH_COMP_TYPE_PSI,
FLASH_COMP_TYPE_EBL,
FLASH_COMP_TYPE_FLS,
FLASH_COMP_TYPE_INVAL,
};
/**
* struct iosm_devlink_sio - SIO instance
* @rx_list: Downlink skbuf list received from CP
* @read_sem: Needed for the blocking read or downlink transfer
* @channel_id: Reserved channel id for flashing/CD collection to RAM
* @channel: Channel instance for flashing and coredump
* @devlink_read_pend: Check if read is pending
*/
struct iosm_devlink_sio {
struct sk_buff_head rx_list;
struct completion read_sem;
int channel_id;
struct ipc_mem_channel *channel;
u32 devlink_read_pend;
};
/**
* struct iosm_flash_params - List of flash params required for flashing
* @address: Address of the region file to be flashed
* @region_count: Maximum no of regions for each fls file
* @download_region: To be set if region is being flashed
* @erase_full_flash: To set the flashing mode
* erase_full_flash = 1; full erase
* erase_full_flash = 0; no erase
* @erase_full_flash_done: Flag to check if it is a full erase
*/
struct iosm_flash_params {
u32 address;
u8 region_count;
u8 download_region;
u8 erase_full_flash;
u8 erase_full_flash_done;
};
/**
* struct iosm_ebl_ctx_data - EBL ctx data used during flashing
* @ebl_sw_info_version: SWID version info obtained from EBL
* @m_ebl_resp: Buffer used to read and write the ebl data
*/
struct iosm_ebl_ctx_data {
u8 ebl_sw_info_version;
u8 m_ebl_resp[IOSM_EBL_RSP_SIZE];
};
/**
* struct iosm_coredump_file_info - Coredump file info
* @filename: Name of coredump file
* @default_size: Default size of coredump file
* @actual_size: Actual size of coredump file
* @entry: Index of the coredump file
*/
struct iosm_coredump_file_info {
char filename[IOSM_MAX_FILENAME_LEN];
u32 default_size;
u32 actual_size;
u32 entry;
};
/**
* struct iosm_devlink - IOSM Devlink structure
* @devlink_sio: SIO instance for read/write functionality
* @pcie: Pointer to PCIe component
* @dev: Pointer to device struct
* @devlink_ctx: Pointer to devlink context
* @param: Params required for flashing
* @ebl_ctx: Data to be read and written to Modem
* @cd_file_info: coredump file info
* @iosm_devlink_mdm_coredump: region ops for coredump collection
* @cd_regions: coredump regions
*/
struct iosm_devlink {
struct iosm_devlink_sio devlink_sio;
struct iosm_pcie *pcie;
struct device *dev;
struct devlink *devlink_ctx;
struct iosm_flash_params param;
struct iosm_ebl_ctx_data ebl_ctx;
struct iosm_coredump_file_info *cd_file_info;
struct devlink_region_ops iosm_devlink_mdm_coredump[IOSM_NOF_CD_REGION];
struct devlink_region *cd_regions[IOSM_NOF_CD_REGION];
};
/**
* union iosm_rpsi_param_u - RPSI cmd param for CRC calculation
* @word: Words member used in CRC calculation
* @dword: Actual data
*/
union iosm_rpsi_param_u {
__le16 word[2];
__le32 dword;
};
/**
* struct iosm_rpsi_cmd - Structure for RPSI Command
* @param: Used to calculate CRC
* @cmd: Stores the RPSI command
* @crc: Stores the CRC value
*/
struct iosm_rpsi_cmd {
union iosm_rpsi_param_u param;
__le16 cmd;
__le16 crc;
};
/**
* ipc_devlink_init - To initialize the devlink to IOSM driver
* @ipc_imem: Pointer to struct iosm_imem
*
* Returns: Pointer to iosm_devlink on success and NULL on failure
*/
struct iosm_devlink *ipc_devlink_init(struct iosm_imem *ipc_imem);
/**
* ipc_devlink_deinit - To unintialize the devlink from IOSM driver.
* @ipc_devlink: Devlink instance
*/
void ipc_devlink_deinit(struct iosm_devlink *ipc_devlink);
/**
* ipc_devlink_send_cmd - Send command to Modem
* @ipc_devlink: Pointer to struct iosm_devlink
* @cmd: Command to be sent to modem
* @entry: Command entry number
*
* Returns: 0 on success and failure value on error
*/
int ipc_devlink_send_cmd(struct iosm_devlink *ipc_devlink, u16 cmd, u32 entry);
#endif /* _IOSM_IPC_DEVLINK_H */
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