mlx_link_speed.c File Reference

#include "../../mlx_lib/mlx_link_speed/mlx_link_speed.h"
#include "../../include/public/mlx_memory.h"
#include "../../include/public/mlx_bail.h"

Go to the source code of this file.

Functions
	FILE_LICENCE (GPL2_OR_LATER)
mlx_status	mlx_set_link_speed (IN mlx_utils *utils, IN mlx_uint8 port_num, IN LINK_SPEED_TYPE type, IN LINK_SPEED speed)
mlx_status	mlx_get_max_speed (IN mlx_utils *utils, IN mlx_uint8 port_num, IN LINK_SPEED_TYPE type, OUT mlx_uint64 *speed)

---

Function Documentation

FILE_LICENCE

(

GPL2_OR_LATER

)

mlx_status mlx_set_link_speed	(	IN mlx_utils *	utils,
		IN mlx_uint8	port_num,
		IN LINK_SPEED_TYPE	type,
		IN LINK_SPEED	speed
	)

Definition at line 27 of file mlx_link_speed.c.

References mlx_link_speed::eth_proto_admin, mlx_link_speed::eth_proto_capability, mlx_link_speed::ib_proto_admin, mlx_link_speed::ib_proto_capability, LINK_SPEED_100GB, LINK_SPEED_100GB_MASK, LINK_SPEED_10GB, LINK_SPEED_10GB_MASK, LINK_SPEED_1GB, LINK_SPEED_1GB_MASK, LINK_SPEED_40GB, LINK_SPEED_40GB_MASK, LINK_SPEED_DEFAULT, LINK_SPEED_ETH, LINK_SPEED_SDR, LINK_SPEED_SDR_MASK, mlx_link_speed::loacl_port, MLX_CHECK_STATUS, MLX_DEBUG_ERROR, MLX_FAILED, MLX_INVALID_PARAMETER, mlx_memory_set(), mlx_reg_access(), MLX_SUCCESS, NULL, port_num, mlx_link_speed::proto_mask, status, and type.

Referenced by golan_set_link_speed().

{
        mlx_status status = MLX_SUCCESS;
        struct mlx_link_speed link_speed;
        mlx_uint32 reg_status;

        if (utils == NULL) {
                status = MLX_INVALID_PARAMETER;
                goto bad_param;
        }

        mlx_memory_set(utils, &link_speed, 0, sizeof(link_speed));

        link_speed.loacl_port = port_num;
        link_speed.proto_mask = 1 << type;

        status = mlx_reg_access(utils, REG_ID_PTYS, REG_ACCESS_READ, &link_speed,
                        sizeof(link_speed), &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;
        }
        switch (speed) {
        case LINK_SPEED_1GB:
                link_speed.eth_proto_admin = link_speed.eth_proto_capability & LINK_SPEED_1GB_MASK;
                break;
        case LINK_SPEED_10GB:
                link_speed.eth_proto_admin = link_speed.eth_proto_capability & LINK_SPEED_10GB_MASK;
                break;
        case LINK_SPEED_40GB:
                link_speed.eth_proto_admin = link_speed.eth_proto_capability & LINK_SPEED_40GB_MASK;
                break;
        case LINK_SPEED_100GB:
                link_speed.eth_proto_admin = link_speed.eth_proto_capability & LINK_SPEED_100GB_MASK;
                break;
        case LINK_SPEED_SDR:
                link_speed.ib_proto_admin = link_speed.ib_proto_capability & LINK_SPEED_SDR_MASK;
                break;
        case LINK_SPEED_DEFAULT:
                if (type == LINK_SPEED_ETH) {
                        link_speed.eth_proto_admin = link_speed.eth_proto_capability;
                } else {
                        link_speed.ib_proto_admin = link_speed.ib_proto_capability;
                }
                break;
        }
        status = mlx_reg_access(utils, REG_ID_PTYS, REG_ACCESS_WRITE, &link_speed,
                                sizeof(link_speed), &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;
}

mlx_status mlx_get_max_speed	(	IN mlx_utils *	utils,
		IN mlx_uint8	port_num,
		IN LINK_SPEED_TYPE	type,
		OUT mlx_uint64 *	speed
	)

Definition at line 95 of file mlx_link_speed.c.

References mlx_link_speed::eth_proto_capability, GIGA_TO_BIT, mlx_link_speed::ib_link_width_capability, mlx_link_speed::ib_proto_capability, LINK_SPEED_100GB_MASK, LINK_SPEED_10GB_MASK, LINK_SPEED_1GB_MASK, LINK_SPEED_20GB_MASK, LINK_SPEED_25GB_MASK, LINK_SPEED_40GB_MASK, LINK_SPEED_50GB_MASK, LINK_SPEED_56GB_MASK, LINK_SPEED_DDR_MASK, LINK_SPEED_EDR20_MASK, LINK_SPEED_EDR_MASK, LINK_SPEED_ETH, LINK_SPEED_FDR_MASK, LINK_SPEED_QDR_MASK, LINK_SPEED_SDR_MASK, LINK_SPEED_WITDH_12_MASK, LINK_SPEED_WITDH_1_MASK, LINK_SPEED_WITDH_2_MASK, LINK_SPEED_WITDH_4_MASK, LINK_SPEED_WITDH_8_MASK, mlx_link_speed::loacl_port, MLX_CHECK_STATUS, MLX_DEBUG_ERROR, MLX_FAILED, MLX_INVALID_PARAMETER, mlx_memory_set(), mlx_reg_access(), MLX_SUCCESS, NULL, port_num, mlx_link_speed::proto_mask, status, and type.

{
        mlx_status status = MLX_SUCCESS;
        struct mlx_link_speed link_speed;
        mlx_uint32 reg_status;
        mlx_uint64 speed_giga = 0;
        mlx_uint8  lanes_number = 1;

        *speed = 0;
        if (utils == NULL) {
                status = MLX_INVALID_PARAMETER;
                goto bad_param;
        }

        mlx_memory_set(utils, &link_speed, 0, sizeof(link_speed));

        link_speed.loacl_port = port_num;
        link_speed.proto_mask = 1 << type;

        status = mlx_reg_access(utils, REG_ID_PTYS, REG_ACCESS_READ, &link_speed,
                        sizeof(link_speed), &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;
        }

        if ( type == LINK_SPEED_ETH ) {
                if ( link_speed.eth_proto_capability & LINK_SPEED_100GB_MASK ) {
                        speed_giga = 100;
                } else if ( link_speed.eth_proto_capability & LINK_SPEED_56GB_MASK ) {
                        speed_giga = 56;
                } else if ( link_speed.eth_proto_capability & LINK_SPEED_50GB_MASK ) {
                        speed_giga = 50;
                } else if ( link_speed.eth_proto_capability & LINK_SPEED_40GB_MASK ) {
                        speed_giga = 40;
                } else if (link_speed.eth_proto_capability & LINK_SPEED_25GB_MASK) {
                        speed_giga = 25;
                } else if ( link_speed.eth_proto_capability & LINK_SPEED_20GB_MASK ) {
                        speed_giga = 20;
                } else if ( link_speed.eth_proto_capability & LINK_SPEED_10GB_MASK) {
                        speed_giga = 10;
                } else if ( link_speed.eth_proto_capability & LINK_SPEED_1GB_MASK ) {
                        speed_giga = 1;
                }
        } else {
                if ( link_speed.ib_proto_capability & LINK_SPEED_EDR_MASK ) {
                        speed_giga = 25;
                } else if ( link_speed.ib_proto_capability & LINK_SPEED_EDR20_MASK ) {
                        speed_giga = 20;
                } else if ( link_speed.ib_proto_capability & LINK_SPEED_FDR_MASK ) {
                        speed_giga = 14;
                } else if ( link_speed.ib_proto_capability & LINK_SPEED_QDR_MASK ) {
                        speed_giga = 10;
                } else if ( link_speed.ib_proto_capability & LINK_SPEED_DDR_MASK ) {
                        speed_giga = 5;
                } else if ( link_speed.ib_proto_capability & LINK_SPEED_SDR_MASK ) {
                        speed_giga = 2.5;
                }
                if ( link_speed.ib_link_width_capability & LINK_SPEED_WITDH_12_MASK ) {
                        lanes_number = 12;
                } else if ( link_speed.ib_link_width_capability & LINK_SPEED_WITDH_8_MASK ) {
                        lanes_number = 8;
                } else if (link_speed.ib_link_width_capability & LINK_SPEED_WITDH_4_MASK ) {
                        lanes_number = 4;
                } else if (link_speed.ib_link_width_capability & LINK_SPEED_WITDH_2_MASK ) {
                        lanes_number = 2;
                } else if (link_speed.ib_link_width_capability & LINK_SPEED_WITDH_1_MASK ) {
                        lanes_number = 1;
                }
                speed_giga = speed_giga * lanes_number;
        }
        // Return data in bits
        *speed = speed_giga * GIGA_TO_BIT;
reg_err:
bad_param:
        return status;
}