mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 08:25:12 +07:00
d556e92916
Add I2C access support for Mellanox ASICs: - Virtual Protocol Interconnect switches SwitchX, SwitchX2, providing InfiniBand, Ethernet and Fibre Channel connectivity; - Infiniband switches SwitchIB, SwitchIB2: - Ethernet switch Spectrum. Example of probing activation: echo mlxsw_minimal 0x48 > /sys/bus/i2c/devices/i2c-2/new_device Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
98 lines
3.3 KiB
C
98 lines
3.3 KiB
C
/*
|
|
* drivers/net/ethernet/mellanox/mlxsw/minimal.c
|
|
* Copyright (c) 2016 Mellanox Technologies. All rights reserved.
|
|
* Copyright (c) 2016 Vadim Pasternak <vadimp@mellanox.com>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the names of the copyright holders nor the names of its
|
|
* contributors may be used to endorse or promote products derived from
|
|
* this software without specific prior written permission.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <linux/i2c.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/mod_devicetable.h>
|
|
#include <linux/types.h>
|
|
|
|
#include "core.h"
|
|
#include "i2c.h"
|
|
|
|
static const char mlxsw_minimal_driver_name[] = "mlxsw_minimal";
|
|
|
|
static const struct mlxsw_config_profile mlxsw_minimal_config_profile;
|
|
|
|
static struct mlxsw_driver mlxsw_minimal_driver = {
|
|
.kind = mlxsw_minimal_driver_name,
|
|
.priv_size = 1,
|
|
.profile = &mlxsw_minimal_config_profile,
|
|
};
|
|
|
|
static const struct i2c_device_id mlxsw_minimal_i2c_id[] = {
|
|
{ "mlxsw_minimal", 0},
|
|
{ },
|
|
};
|
|
|
|
static struct i2c_driver mlxsw_minimal_i2c_driver = {
|
|
.driver.name = "mlxsw_minimal",
|
|
.class = I2C_CLASS_HWMON,
|
|
.id_table = mlxsw_minimal_i2c_id,
|
|
};
|
|
|
|
static int __init mlxsw_minimal_module_init(void)
|
|
{
|
|
int err;
|
|
|
|
err = mlxsw_core_driver_register(&mlxsw_minimal_driver);
|
|
if (err)
|
|
return err;
|
|
|
|
err = mlxsw_i2c_driver_register(&mlxsw_minimal_i2c_driver);
|
|
if (err)
|
|
goto err_i2c_driver_register;
|
|
|
|
return 0;
|
|
|
|
err_i2c_driver_register:
|
|
mlxsw_core_driver_unregister(&mlxsw_minimal_driver);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void __exit mlxsw_minimal_module_exit(void)
|
|
{
|
|
mlxsw_i2c_driver_unregister(&mlxsw_minimal_i2c_driver);
|
|
mlxsw_core_driver_unregister(&mlxsw_minimal_driver);
|
|
}
|
|
|
|
module_init(mlxsw_minimal_module_init);
|
|
module_exit(mlxsw_minimal_module_exit);
|
|
|
|
MODULE_LICENSE("Dual BSD/GPL");
|
|
MODULE_AUTHOR("Vadim Pasternak <vadimp@mellanox.com>");
|
|
MODULE_DESCRIPTION("Mellanox minimal driver");
|
|
MODULE_DEVICE_TABLE(i2c, mlxsw_minimal_i2c_id);
|