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/* SPDX-License-Identifier: GPL-2.0-only */
#define ETHTOOL_CMIS_CDB_LPL_MAX_PL_LENGTH 120
#define ETHTOOL_CMIS_CDB_CMD_PAGE 0x9F
#define ETHTOOL_CMIS_CDB_PAGE_I2C_ADDR 0x50
/**
* struct ethtool_cmis_cdb - CDB commands parameters
* @cmis_rev: CMIS revision major.
* @read_write_len_ext: Allowable additional number of byte octets to the LPL
* in a READ or a WRITE CDB commands.
* @max_completion_time: Maximum CDB command completion time in msec.
*/
struct ethtool_cmis_cdb {
u8 cmis_rev;
u8 read_write_len_ext;
u16 max_completion_time;
};
enum ethtool_cmis_cdb_cmd_id {
ETHTOOL_CMIS_CDB_CMD_QUERY_STATUS = 0x0000,
ETHTOOL_CMIS_CDB_CMD_MODULE_FEATURES = 0x0040,
ETHTOOL_CMIS_CDB_CMD_FW_MANAGMENT_FEATURES = 0x0041,
ETHTOOL_CMIS_CDB_CMD_START_FW_DOWNLOAD = 0x0101,
ETHTOOL_CMIS_CDB_CMD_WRITE_FW_BLOCK_LPL = 0x0103,
ETHTOOL_CMIS_CDB_CMD_COMPLETE_FW_DOWNLOAD = 0x0107,
ETHTOOL_CMIS_CDB_CMD_RUN_FW_IMAGE = 0x0109,
ETHTOOL_CMIS_CDB_CMD_COMMIT_FW_IMAGE = 0x010A,
};
/**
* struct ethtool_cmis_cdb_request - CDB commands request fields as decribed in
* the CMIS standard
* @id: Command ID.
* @epl_len: EPL memory length.
* @lpl_len: LPL memory length.
* @chk_code: Check code for the previous field and the payload.
* @resv1: Added to match the CMIS standard request continuity.
* @resv2: Added to match the CMIS standard request continuity.
* @payload: Payload for the CDB commands.
*/
struct ethtool_cmis_cdb_request {
__be16 id;
struct_group(body,
__be16 epl_len;
u8 lpl_len;
u8 chk_code;
u8 resv1;
u8 resv2;
u8 payload[ETHTOOL_CMIS_CDB_LPL_MAX_PL_LENGTH];
);
};
#define CDB_F_COMPLETION_VALID BIT(0)
#define CDB_F_STATUS_VALID BIT(1)
#define CDB_F_MODULE_STATE_VALID BIT(2)
/**
* struct ethtool_cmis_cdb_cmd_args - CDB commands execution arguments
* @req: CDB command fields as described in the CMIS standard.
* @max_duration: Maximum duration time for command completion in msec.
* @read_write_len_ext: Allowable additional number of byte octets to the LPL
* in a READ or a WRITE commands.
* @msleep_pre_rpl: Waiting time before checking reply in msec.
* @rpl_exp_len: Expected reply length in bytes.
* @flags: Validation flags for CDB commands.
* @err_msg: Error message to be sent to user space.
*/
struct ethtool_cmis_cdb_cmd_args {
struct ethtool_cmis_cdb_request req;
u16 max_duration;
u8 read_write_len_ext;
u8 msleep_pre_rpl;
u8 rpl_exp_len;
u8 flags;
char *err_msg;
};
/**
* struct ethtool_cmis_cdb_rpl_hdr - CDB commands reply header arguments
* @rpl_len: Reply length.
* @rpl_chk_code: Reply check code.
*/
struct ethtool_cmis_cdb_rpl_hdr {
u8 rpl_len;
u8 rpl_chk_code;
};
/**
* struct ethtool_cmis_cdb_rpl - CDB commands reply arguments
* @hdr: CDB commands reply header arguments.
* @payload: Payload for the CDB commands reply.
*/
struct ethtool_cmis_cdb_rpl {
struct ethtool_cmis_cdb_rpl_hdr hdr;
u8 payload[ETHTOOL_CMIS_CDB_LPL_MAX_PL_LENGTH];
};
u32 ethtool_cmis_get_max_payload_size(u8 num_of_byte_octs);
void ethtool_cmis_cdb_compose_args(struct ethtool_cmis_cdb_cmd_args *args,
enum ethtool_cmis_cdb_cmd_id cmd, u8 *pl,
u8 lpl_len, u16 max_duration,
u8 read_write_len_ext, u16 msleep_pre_rpl,
u8 rpl_exp_len, u8 flags);
void ethtool_cmis_cdb_check_completion_flag(u8 cmis_rev, u8 *flags);
void ethtool_cmis_page_init(struct ethtool_module_eeprom *page_data,
u8 page, u32 offset, u32 length);
void ethtool_cmis_page_fini(struct ethtool_module_eeprom *page_data);
struct ethtool_cmis_cdb *
ethtool_cmis_cdb_init(struct net_device *dev,
const struct ethtool_module_fw_flash_params *params,
struct ethnl_module_fw_flash_ntf_params *ntf_params);
void ethtool_cmis_cdb_fini(struct ethtool_cmis_cdb *cdb);
int ethtool_cmis_wait_for_cond(struct net_device *dev, u8 flags, u8 flag,
u16 max_duration, u32 offset,
bool (*cond_success)(u8), bool (*cond_fail)(u8), u8 *state);
int ethtool_cmis_cdb_execute_cmd(struct net_device *dev,
struct ethtool_cmis_cdb_cmd_args *args);
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