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1/*2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.3 * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies.4 * All rights reserved.5 *6 * This software is available to you under a choice of one of two7 * licenses. You may choose to be licensed under the terms of the GNU8 * General Public License (GPL) Version 2, available from the file9 * COPYING in the main directory of this source tree, or the10 * OpenIB.org BSD license below:11 *12 * Redistribution and use in source and binary forms, with or13 * without modification, are permitted provided that the following14 * conditions are met:15 *16 * - Redistributions of source code must retain the above17 * copyright notice, this list of conditions and the following18 * disclaimer.19 *20 * - Redistributions in binary form must reproduce the above21 * copyright notice, this list of conditions and the following22 * disclaimer in the documentation and/or other materials23 * provided with the distribution.24 *25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE32 * SOFTWARE.33 */34 35#ifndef MLX4_FW_QOS_H36#define MLX4_FW_QOS_H37 38#include <linux/mlx4/cmd.h>39#include <linux/mlx4/device.h>40 41#define MLX4_NUM_UP 842#define MLX4_NUM_TC 843 44/* Default supported priorities for VPP allocation */45#define MLX4_DEFAULT_QOS_PRIO (0)46 47/* Derived from FW feature definition, 0 is the default vport for all QPs */48#define MLX4_VPP_DEFAULT_VPORT (0)49 50struct mlx4_vport_qos_param {51 u32 bw_share;52 u32 max_avg_bw;53 u8 enable;54};55 56/**57 * mlx4_SET_PORT_PRIO2TC - This routine maps user priorities to traffic58 * classes of a given port and device.59 *60 * @dev: mlx4_dev.61 * @port: Physical port number.62 * @prio2tc: Array of TC associated with each priorities.63 *64 * Returns 0 on success or a negative mlx4_core errno code.65 **/66int mlx4_SET_PORT_PRIO2TC(struct mlx4_dev *dev, u8 port, u8 *prio2tc);67 68/**69 * mlx4_SET_PORT_SCHEDULER - This routine configures the arbitration between70 * traffic classes (ETS) and configured rate limit for traffic classes.71 * tc_tx_bw, pg and ratelimit are arrays where each index represents a TC.72 * The description for those parameters below refers to a single TC.73 *74 * @dev: mlx4_dev.75 * @port: Physical port number.76 * @tc_tx_bw: The percentage of the bandwidth allocated for traffic class77 * within a TC group. The sum of the bw_percentage of all the traffic78 * classes within a TC group must equal 100% for correct operation.79 * @pg: The TC group the traffic class is associated with.80 * @ratelimit: The maximal bandwidth allowed for the use by this traffic class.81 *82 * Returns 0 on success or a negative mlx4_core errno code.83 **/84int mlx4_SET_PORT_SCHEDULER(struct mlx4_dev *dev, u8 port, u8 *tc_tx_bw,85 u8 *pg, u16 *ratelimit);86/**87 * mlx4_ALLOCATE_VPP_get - Query port VPP available resources and allocation.88 * Before distribution of VPPs to priorities, only available_vpp is returned.89 * After initialization it returns the distribution of VPPs among priorities.90 *91 * @dev: mlx4_dev.92 * @port: Physical port number.93 * @available_vpp: Pointer to variable where number of available VPPs is stored94 * @vpp_p_up: Distribution of VPPs to priorities is stored in this array95 *96 * Returns 0 on success or a negative mlx4_core errno code.97 **/98int mlx4_ALLOCATE_VPP_get(struct mlx4_dev *dev, u8 port,99 u16 *available_vpp, u8 *vpp_p_up);100/**101 * mlx4_ALLOCATE_VPP_set - Distribution of VPPs among different priorities.102 * The total number of VPPs assigned to all for a port must not exceed103 * the value reported by available_vpp in mlx4_ALLOCATE_VPP_get.104 * VPP allocation is allowed only after the port type has been set,105 * and while no QPs are open for this port.106 *107 * @dev: mlx4_dev.108 * @port: Physical port number.109 * @vpp_p_up: Allocation of VPPs to different priorities.110 *111 * Returns 0 on success or a negative mlx4_core errno code.112 **/113int mlx4_ALLOCATE_VPP_set(struct mlx4_dev *dev, u8 port, u8 *vpp_p_up);114 115/**116 * mlx4_SET_VPORT_QOS_get - Query QoS properties of a Vport.117 * Each priority allowed for the Vport is assigned with a share of the BW,118 * and a BW limitation. This commands query the current QoS values.119 *120 * @dev: mlx4_dev.121 * @port: Physical port number.122 * @vport: Vport id.123 * @out_param: Array of mlx4_vport_qos_param that will contain the values.124 *125 * Returns 0 on success or a negative mlx4_core errno code.126 **/127int mlx4_SET_VPORT_QOS_get(struct mlx4_dev *dev, u8 port, u8 vport,128 struct mlx4_vport_qos_param *out_param);129 130/**131 * mlx4_SET_VPORT_QOS_set - Set QoS properties of a Vport.132 * QoS parameters can be modified at any time, but must be initialized133 * before any QP is associated with the VPort.134 *135 * @dev: mlx4_dev.136 * @port: Physical port number.137 * @vport: Vport id.138 * @in_param: Array of mlx4_vport_qos_param which holds the requested values.139 *140 * Returns 0 on success or a negative mlx4_core errno code.141 **/142int mlx4_SET_VPORT_QOS_set(struct mlx4_dev *dev, u8 port, u8 vport,143 struct mlx4_vport_qos_param *in_param);144 145#endif /* MLX4_FW_QOS_H */146