146 lines
5.3 KiB
C
146 lines
5.3 KiB
C
/*
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* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
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* Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies.
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* All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef MLX4_FW_QOS_H
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#define MLX4_FW_QOS_H
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#include <linux/mlx4/cmd.h>
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#include <linux/mlx4/device.h>
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#define MLX4_NUM_UP 8
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#define MLX4_NUM_TC 8
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/* Default supported priorities for VPP allocation */
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#define MLX4_DEFAULT_QOS_PRIO (0)
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/* Derived from FW feature definition, 0 is the default vport fo all QPs */
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#define MLX4_VPP_DEFAULT_VPORT (0)
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struct mlx4_vport_qos_param {
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u32 bw_share;
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u32 max_avg_bw;
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u8 enable;
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};
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/**
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* mlx4_SET_PORT_PRIO2TC - This routine maps user priorities to traffic
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* classes of a given port and device.
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*
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* @dev: mlx4_dev.
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* @port: Physical port number.
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* @prio2tc: Array of TC associated with each priorities.
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*
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* Returns 0 on success or a negative mlx4_core errno code.
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**/
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int mlx4_SET_PORT_PRIO2TC(struct mlx4_dev *dev, u8 port, u8 *prio2tc);
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/**
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* mlx4_SET_PORT_SCHEDULER - This routine configures the arbitration between
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* traffic classes (ETS) and configured rate limit for traffic classes.
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* tc_tx_bw, pg and ratelimit are arrays where each index represents a TC.
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* The description for those parameters below refers to a single TC.
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*
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* @dev: mlx4_dev.
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* @port: Physical port number.
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* @tc_tx_bw: The percentage of the bandwidth allocated for traffic class
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* within a TC group. The sum of the bw_percentage of all the traffic
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* classes within a TC group must equal 100% for correct operation.
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* @pg: The TC group the traffic class is associated with.
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* @ratelimit: The maximal bandwidth allowed for the use by this traffic class.
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*
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* Returns 0 on success or a negative mlx4_core errno code.
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**/
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int mlx4_SET_PORT_SCHEDULER(struct mlx4_dev *dev, u8 port, u8 *tc_tx_bw,
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u8 *pg, u16 *ratelimit);
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/**
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* mlx4_ALLOCATE_VPP_get - Query port VPP available resources and allocation.
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* Before distribution of VPPs to priorities, only available_vpp is returned.
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* After initialization it returns the distribution of VPPs among priorities.
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*
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* @dev: mlx4_dev.
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* @port: Physical port number.
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* @available_vpp: Pointer to variable where number of available VPPs is stored
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* @vpp_p_up: Distribution of VPPs to priorities is stored in this array
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*
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* Returns 0 on success or a negative mlx4_core errno code.
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**/
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int mlx4_ALLOCATE_VPP_get(struct mlx4_dev *dev, u8 port,
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u16 *available_vpp, u8 *vpp_p_up);
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/**
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* mlx4_ALLOCATE_VPP_set - Distribution of VPPs among differnt priorities.
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* The total number of VPPs assigned to all for a port must not exceed
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* the value reported by available_vpp in mlx4_ALLOCATE_VPP_get.
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* VPP allocation is allowed only after the port type has been set,
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* and while no QPs are open for this port.
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*
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* @dev: mlx4_dev.
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* @port: Physical port number.
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* @vpp_p_up: Allocation of VPPs to different priorities.
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*
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* Returns 0 on success or a negative mlx4_core errno code.
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**/
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int mlx4_ALLOCATE_VPP_set(struct mlx4_dev *dev, u8 port, u8 *vpp_p_up);
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/**
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* mlx4_SET_VPORT_QOS_get - Query QoS proporties of a Vport.
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* Each priority allowed for the Vport is assigned with a share of the BW,
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* and a BW limitation. This commands query the current QoS values.
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*
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* @dev: mlx4_dev.
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* @port: Physical port number.
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* @vport: Vport id.
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* @out_param: Array of mlx4_vport_qos_param that will contain the values.
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*
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* Returns 0 on success or a negative mlx4_core errno code.
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**/
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int mlx4_SET_VPORT_QOS_get(struct mlx4_dev *dev, u8 port, u8 vport,
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struct mlx4_vport_qos_param *out_param);
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/**
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* mlx4_SET_VPORT_QOS_set - Set QoS proporties of a Vport.
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* QoS parameters can be modified at any time, but must be initialized
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* before any QP is associated with the VPort.
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*
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* @dev: mlx4_dev.
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* @port: Physical port number.
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* @vport: Vport id.
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* @in_param: Array of mlx4_vport_qos_param which holds the requested values.
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*
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* Returns 0 on success or a negative mlx4_core errno code.
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**/
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int mlx4_SET_VPORT_QOS_set(struct mlx4_dev *dev, u8 port, u8 vport,
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struct mlx4_vport_qos_param *in_param);
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#endif /* MLX4_FW_QOS_H */
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