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Commit 7ca36994 authored by Arkadi Sharshevsky's avatar Arkadi Sharshevsky Committed by David S. Miller
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mlxsw: reg: Add MCIA register for cable info access 



The MCIA register is used to access the SFP+ and QSFP connector's
EPROM. It will be used to query the cable info.

Signed-off-by: default avatarArkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4071bd88

drivers/net/ethernet/mellanox/mlxsw/reg.h

+76 −0
Original line number Diff line number Diff line
@@ -5491,6 +5491,81 @@ static inline void mlxsw_reg_mtmp_unpack(char *payload, unsigned int *p_temp, 
		mlxsw_reg_mtmp_sensor_name_memcpy_from(payload, sensor_name);

}



/* MCIA - Management Cable Info Access

 * -----------------------------------

 * MCIA register is used to access the SFP+ and QSFP connector's EPROM.

 */



#define MLXSW_REG_MCIA_ID 0x9014

#define MLXSW_REG_MCIA_LEN 0x40



MLXSW_REG_DEFINE(mcia, MLXSW_REG_MCIA_ID, MLXSW_REG_MCIA_LEN);



/* reg_mcia_l

 * Lock bit. Setting this bit will lock the access to the specific

 * cable. Used for updating a full page in a cable EPROM. Any access

 * other then subsequence writes will fail while the port is locked.

 * Access: RW

 */

MLXSW_ITEM32(reg, mcia, l, 0x00, 31, 1);



/* reg_mcia_module

 * Module number.

 * Access: Index

 */

MLXSW_ITEM32(reg, mcia, module, 0x00, 16, 8);



/* reg_mcia_status

 * Module status.

 * Access: RO

 */

MLXSW_ITEM32(reg, mcia, status, 0x00, 0, 8);



/* reg_mcia_i2c_device_address

 * I2C device address.

 * Access: RW

 */

MLXSW_ITEM32(reg, mcia, i2c_device_address, 0x04, 24, 8);



/* reg_mcia_page_number

 * Page number.

 * Access: RW

 */

MLXSW_ITEM32(reg, mcia, page_number, 0x04, 16, 8);



/* reg_mcia_device_address

 * Device address.

 * Access: RW

 */

MLXSW_ITEM32(reg, mcia, device_address, 0x04, 0, 16);



/* reg_mcia_size

 * Number of bytes to read/write (up to 48 bytes).

 * Access: RW

 */

MLXSW_ITEM32(reg, mcia, size, 0x08, 0, 16);



#define MLXSW_SP_REG_MCIA_EEPROM_SIZE 48



/* reg_mcia_eeprom

 * Bytes to read/write.

 * Access: RW

 */

MLXSW_ITEM_BUF(reg, mcia, eeprom, 0x10, MLXSW_SP_REG_MCIA_EEPROM_SIZE);



static inline void mlxsw_reg_mcia_pack(char *payload, u8 module, u8 lock,

				       u8 page_number, u16 device_addr,

				       u8 size, u8 i2c_device_addr)

{

	MLXSW_REG_ZERO(mcia, payload);

	mlxsw_reg_mcia_module_set(payload, module);

	mlxsw_reg_mcia_l_set(payload, lock);

	mlxsw_reg_mcia_page_number_set(payload, page_number);

	mlxsw_reg_mcia_device_address_set(payload, device_addr);

	mlxsw_reg_mcia_size_set(payload, size);

	mlxsw_reg_mcia_i2c_device_address_set(payload, i2c_device_addr);

}



/* MPAT - Monitoring Port Analyzer Table

 * -------------------------------------

 * MPAT Register is used to query and configure the Switch PortAnalyzer Table.
@@ -6433,6 +6508,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = { 
	MLXSW_REG(mfsl),

	MLXSW_REG(mtcap),

	MLXSW_REG(mtmp),

	MLXSW_REG(mcia),

	MLXSW_REG(mpat),

	MLXSW_REG(mpar),

	MLXSW_REG(mlcr),