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145 lines
5.3 KiB
145 lines
5.3 KiB
/* |
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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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