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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_lib/mlx_link_speed/mlx_link_speed.h"
- #include "../../include/public/mlx_memory.h"
- #include "../../include/public/mlx_bail.h"
-
- 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 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), ®_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), ®_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
- )
- {
- 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), ®_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;
- }
-
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