/*
* Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/module.h>
#include <linux/mlx5/driver.h>
#include <linux/mlx5/cmd.h>
#include "mlx5_core.h"
int mlx5_core_access_reg(struct mlx5_core_dev *dev, void *data_in,
int size_in, void *data_out, int size_out,
u16 reg_num, int arg, int write)
{
struct mlx5_access_reg_mbox_in *in = NULL;
struct mlx5_access_reg_mbox_out *out = NULL;
int err = -ENOMEM;
in = mlx5_vzalloc(sizeof(*in) + size_in);
if (!in)
return -ENOMEM;
out = mlx5_vzalloc(sizeof(*out) + size_out);
if (!out)
goto ex1;
memcpy(in->data, data_in, size_in);
in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_ACCESS_REG);
in->hdr.opmod = cpu_to_be16(!write);
in->arg = cpu_to_be32(arg);
in->register_id = cpu_to_be16(reg_num);
err = mlx5_cmd_exec(dev, in, sizeof(*in) + size_in, out,
sizeof(*out) + size_out);
if (err)
goto ex2;
if (out->hdr.status)
err = mlx5_cmd_status_to_err(&out->hdr);
if (!err)
memcpy(data_out, out->data, size_out);
ex2:
kvfree(out);
ex1:
kvfree(in);
return err;
}
EXPORT_SYMBOL_GPL(mlx5_core_access_reg);
struct mlx5_reg_pcap {
u8 rsvd0;
u8 port_num;
u8 rsvd1[2];
__be32 caps_127_96;
__be32 caps_95_64;
__be32 caps_63_32;
__be32 caps_31_0;
};
int mlx5_set_port_caps(struct mlx5_core_dev *dev, u8 port_num, u32 caps)
{
struct mlx5_reg_pcap in;
struct mlx5_reg_pcap out;
int err;
memset(&in, 0, sizeof(in));
in.caps_127_96 = cpu_to_be32(caps);
in.port_num = port_num;
err = mlx5_core_access_reg(dev, &in, sizeof(in), &out,
sizeof(out), MLX5_REG_PCAP, 0, 1);
return err;
}
EXPORT_SYMBOL_GPL(mlx5_set_port_caps);
int mlx5_query_port_ptys(struct mlx5_core_dev *dev, u32 *ptys,
int ptys_size, int proto_mask, u8 local_port)
{
u32 in[MLX5_ST_SZ_DW(ptys_reg)];
int err;
memset(in, 0, sizeof(in));
MLX5_SET(ptys_reg, in, local_port, local_port);
MLX5_SET(ptys_reg, in, proto_mask, proto_mask);
err = mlx5_core_access_reg(dev, in, sizeof(in), ptys,
ptys_size, MLX5_REG_PTYS, 0, 0);
return err;
}
EXPORT_SYMBOL_GPL(mlx5_query_port_ptys);
int mlx5_query_port_proto_cap(struct mlx5_core_dev *dev,
u32 *proto_cap, int proto_mask)
{
u32 out[MLX5_ST_SZ_DW(ptys_reg)];
int err;
err = mlx5_query_port_ptys(dev, out, sizeof(out), proto_mask, 1);
if (err)
return err;
if (proto_mask == MLX5_PTYS_EN)
*proto_cap = MLX5_GET(ptys_reg, out, eth_proto_capability);
else
*proto_cap = MLX5_GET(ptys_reg, out, ib_proto_capability);
return 0;
}
EXPORT_SYMBOL_GPL(mlx5_query_port_proto_cap);
int mlx5_query_port_proto_admin(struct mlx5_core_dev *dev,
u32 *proto_admin, int proto_mask)
{
u32 out[MLX5_ST_SZ_DW(ptys_reg)];
int err;
err = mlx5_query_port_ptys(dev, out, sizeof(out), proto_mask, 1);
if (err)
return err;
if (proto_mask == MLX5_PTYS_EN)
*proto_admin = MLX5_GET(ptys_reg, out, eth_proto_admin);
else
*proto_admin = MLX5_GET(ptys_reg, out, ib_proto_admin);
return 0;
}
EXPORT_SYMBOL_GPL(mlx5_query_port_proto_admin);
int mlx5_set_port_proto(struct mlx5_core_dev *dev, u32 proto_admin,
int proto_mask)
{
u32 in[MLX5_ST_SZ_DW(ptys_reg)];
u32 out[MLX5_ST_SZ_DW(ptys_reg)];
int err;
memset(in, 0, sizeof(in));
MLX5_SET(ptys_reg, in, local_port, 1);
MLX5_SET(ptys_reg, in, proto_mask, proto_mask);
if (proto_mask == MLX5_PTYS_EN)
MLX5_SET(ptys_reg, in, eth_proto_admin, proto_admin);
else
MLX5_SET(ptys_reg, in, ib_proto_admin, proto_admin);
err = mlx5_core_access_reg(dev, in, sizeof(in), out,
sizeof(out), MLX5_REG_PTYS, 0, 1);
return err;
}
EXPORT_SYMBOL_GPL(mlx5_set_port_proto);
int mlx5_set_port_status(struct mlx5_core_dev *dev,
enum mlx5_port_status status)
{
u32 in[MLX5_ST_SZ_DW(paos_reg)];
u32 out[MLX5_ST_SZ_DW(paos_reg)];
memset(in, 0, sizeof(in));
MLX5_SET(paos_reg, in, admin_status, status);
MLX5_SET(paos_reg, in, ase, 1);
return mlx5_core_access_reg(dev, in, sizeof(in), out,
sizeof(out), MLX5_REG_PAOS, 0, 1);
}
int mlx5_query_port_status(struct mlx5_core_dev *dev, u8 *status)
{
u32 in[MLX5_ST_SZ_DW(paos_reg)];
u32 out[MLX5_ST_SZ_DW(paos_reg)];
int err;
memset(in, 0, sizeof(in));
err = mlx5_core_access_reg(dev, in, sizeof(in), out,
sizeof(out), MLX5_REG_PAOS, 0, 0);
if (err)
return err;
*status = MLX5_GET(paos_reg, out, oper_status);
return err;
}
static int mlx5_query_port_mtu(struct mlx5_core_dev *dev,
int *admin_mtu, int *max_mtu, int *oper_mtu,
u8 local_port)
{
u32 in[MLX5_ST_SZ_DW(pmtu_reg)];
u32 out[MLX5_ST_SZ_DW(pmtu_reg)];
int err;
memset(in, 0, sizeof(in));
MLX5_SET(pmtu_reg, in, local_port, local_port);
err = mlx5_core_access_reg(dev, in, sizeof(in), out,
sizeof(out), MLX5_REG_PMTU, 0, 0);
if (err)
return err;
if (max_mtu)
*max_mtu = MLX5_GET(pmtu_reg, out, max_mtu);
if (oper_mtu)
*oper_mtu = MLX5_GET(pmtu_reg, out, oper_mtu);
if (admin_mtu)
*admin_mtu = MLX5_GET(pmtu_reg, out, admin_mtu);
return 0;
}
int mlx5_set_port_mtu(struct mlx5_core_dev *dev, int mtu)
{
u32 in[MLX5_ST_SZ_DW(pmtu_reg)];
u32 out[MLX5_ST_SZ_DW(pmtu_reg)];
memset(in, 0, sizeof(in));
MLX5_SET(pmtu_reg, in, admin_mtu, mtu);
MLX5_SET(pmtu_reg, in, local_port, 1);
return mlx5_core_access_reg(dev, in, sizeof(in), out, sizeof(out),
MLX5_REG_PMTU, 0, 1);
}
EXPORT_SYMBOL_GPL(mlx5_set_port_mtu);
int mlx5_query_port_max_mtu(struct mlx5_core_dev *dev, int *max_mtu,
u8 local_port)
{
return mlx5_query_port_mtu(dev, NULL, max_mtu, NULL, local_port);
}
EXPORT_SYMBOL_GPL(mlx5_query_port_max_mtu);
int mlx5_query_port_oper_mtu(struct mlx5_core_dev *dev, int *oper_mtu,
u8 local_port)
{
return mlx5_query_port_mtu(dev, NULL, NULL, oper_mtu, local_port);
}
EXPORT_SYMBOL_GPL(mlx5_query_port_oper_mtu);
