mlx_mtu.h File Reference

#include "../../include/public/mlx_utils.h"
#include "../../mlx_lib/mlx_reg_access/mlx_reg_access.h"

Go to the source code of this file.

Data Structures
struct	mlx_mtu

Macros
#define	BYTE_TO_BIT   0x8

Functions
	FILE_LICENCE (GPL2_OR_LATER)
mlx_status	mlx_get_max_mtu (IN mlx_utils *utils, IN mlx_uint8 port_num, OUT mlx_uint32 *max_mtu)
mlx_status	mlx_set_admin_mtu (IN mlx_utils *utils, IN mlx_uint8 port_num, IN mlx_uint32 admin_mtu)

Macro Definition Documentation

BYTE_TO_BIT

#define BYTE_TO_BIT   0x8

Definition at line 28 of file mlx_mtu.h.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER

)

mlx_get_max_mtu()

mlx_status mlx_get_max_mtu	(	IN mlx_utils *	utils,
		IN mlx_uint8	port_num,
		OUT mlx_uint32 *	max_mtu
	)

Definition at line 27 of file mlx_mtu.c.

{
        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), &reg_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;
}

References BYTE_TO_BIT, mlx_mtu::max_mtu, MLX_CHECK_STATUS, MLX_DEBUG_ERROR, MLX_FAILED, MLX_INVALID_PARAMETER, mlx_memory_set(), mlx_reg_access(), MLX_SUCCESS, mtu, NULL, port_num, REG_ACCESS_READ, REG_ID_PMTU, and status.

mlx_set_admin_mtu()

mlx_status mlx_set_admin_mtu	(	IN mlx_utils *	utils,
		IN mlx_uint8	port_num,
		IN mlx_uint32	admin_mtu
	)

Definition at line 63 of file mlx_mtu.c.

{
        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), &reg_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;
}

References mlx_mtu::admin_mtu, MLX_CHECK_STATUS, MLX_DEBUG_ERROR, MLX_FAILED, MLX_INVALID_PARAMETER, mlx_memory_set(), mlx_reg_access(), MLX_SUCCESS, mtu, NULL, port_num, REG_ACCESS_WRITE, REG_ID_PMTU, and status.

Referenced by flexboot_nodnic_probe().