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/*
* Copyright (C) 2015 Mellanox Technologies Ltd.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
FILE_LICENCE ( GPL2_OR_LATER );
#include "mlx_mtu.h"
#include "../../include/public/mlx_memory.h"
#include "../../include/public/mlx_bail.h"
mlx_status
mlx_get_max_mtu(
IN mlx_utils *utils,
IN mlx_uint8 port_num,
OUT mlx_uint32 *max_mtu
)
{
mlx_status status = MLX_SUCCESS;
struct mlx_mtu mtu;
mlx_uint32 reg_status;
*max_mtu = 0;
if (utils == NULL) {
status = MLX_INVALID_PARAMETER;
goto bad_param;
}
mlx_memory_set(utils, &mtu, 0, sizeof(mtu));
mtu.local_port = port_num;
status = mlx_reg_access(utils, REG_ID_PMTU, REG_ACCESS_READ, &mtu,
sizeof(mtu), ®_status);
MLX_CHECK_STATUS(utils, status, reg_err, "mlx_reg_access failed ");
if (reg_status != 0) {
MLX_DEBUG_ERROR(utils,"mlx_reg_access failed with status = %d\n", reg_status);
status = MLX_FAILED;
goto reg_err;
}
// Return data in bits
*max_mtu = mtu.max_mtu * BYTE_TO_BIT;
reg_err:
bad_param:
return status;
}
mlx_status
mlx_set_admin_mtu(
IN mlx_utils *utils,
IN mlx_uint8 port_num,
IN mlx_uint32 admin_mtu
)
{
mlx_status status = MLX_SUCCESS;
struct mlx_mtu mtu;
mlx_uint32 reg_status;
if (utils == NULL) {
status = MLX_INVALID_PARAMETER;
goto bad_param;
}
mlx_memory_set(utils, &mtu, 0, sizeof(mtu));
mtu.local_port = port_num;
mtu.admin_mtu = admin_mtu;
status = mlx_reg_access(utils, REG_ID_PMTU, REG_ACCESS_WRITE, &mtu,
sizeof(mtu), ®_status);
MLX_CHECK_STATUS(utils, status, reg_err, "mlx_reg_access failed ");
if (reg_status != 0) {
MLX_DEBUG_ERROR(utils,"mlx_reg_access failed with status = %d\n", reg_status);
status = MLX_FAILED;
goto reg_err;
}
reg_err:
bad_param:
return status;
}
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