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12a889c0 IS |
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 two | |
7 | * licenses. You may choose to be licensed under the terms of the GNU | |
8 | * General Public License (GPL) Version 2, available from the file | |
9 | * COPYING in the main directory of this source tree, or the | |
10 | * OpenIB.org BSD license below: | |
11 | * | |
12 | * Redistribution and use in source and binary forms, with or | |
13 | * without modification, are permitted provided that the following | |
14 | * conditions are met: | |
15 | * | |
16 | * - Redistributions of source code must retain the above | |
17 | * copyright notice, this list of conditions and the following | |
18 | * disclaimer. | |
19 | * | |
20 | * - Redistributions in binary form must reproduce the above | |
21 | * copyright notice, this list of conditions and the following | |
22 | * disclaimer in the documentation and/or other materials | |
23 | * 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 OF | |
27 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
28 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
29 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
30 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
31 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
32 | * SOFTWARE. | |
33 | */ | |
34 | ||
35 | #ifndef MLX4_FW_QOS_H | |
36 | #define MLX4_FW_QOS_H | |
37 | ||
38 | #include <linux/mlx4/cmd.h> | |
39 | #include <linux/mlx4/device.h> | |
40 | ||
41 | #define MLX4_NUM_UP 8 | |
42 | #define MLX4_NUM_TC 8 | |
43 | ||
666672d4 IS |
44 | /* Default supported priorities for VPP allocation */ |
45 | #define MLX4_DEFAULT_QOS_PRIO (0) | |
46 | ||
08068cd5 IS |
47 | /* Derived from FW feature definition, 0 is the default vport fo all QPs */ |
48 | #define MLX4_VPP_DEFAULT_VPORT (0) | |
49 | ||
1c29146d IS |
50 | struct mlx4_vport_qos_param { |
51 | u32 bw_share; | |
52 | u32 max_avg_bw; | |
53 | u8 enable; | |
54 | }; | |
55 | ||
12a889c0 IS |
56 | /** |
57 | * mlx4_SET_PORT_PRIO2TC - This routine maps user priorities to traffic | |
58 | * 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 | **/ | |
66 | int mlx4_SET_PORT_PRIO2TC(struct mlx4_dev *dev, u8 port, u8 *prio2tc); | |
67 | ||
68 | /** | |
69 | * mlx4_SET_PORT_SCHEDULER - This routine configures the arbitration between | |
70 | * 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 class | |
77 | * within a TC group. The sum of the bw_percentage of all the traffic | |
78 | * 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 | **/ | |
84 | int mlx4_SET_PORT_SCHEDULER(struct mlx4_dev *dev, u8 port, u8 *tc_tx_bw, | |
85 | u8 *pg, u16 *ratelimit); | |
7e95bb99 | 86 | /** |
ba5c4dac CIK |
87 | * mlx4_ALLOCATE_VPP_get - Query port VPP available resources and allocation. |
88 | * Before distribution of VPPs to priorities, only available_vpp is returned. | |
7e95bb99 IS |
89 | * After initialization it returns the distribution of VPPs among priorities. |
90 | * | |
91 | * @dev: mlx4_dev. | |
92 | * @port: Physical port number. | |
ba5c4dac | 93 | * @available_vpp: Pointer to variable where number of available VPPs is stored |
7e95bb99 IS |
94 | * @vpp_p_up: Distribution of VPPs to priorities is stored in this array |
95 | * | |
96 | * Returns 0 on success or a negative mlx4_core errno code. | |
97 | **/ | |
98 | int mlx4_ALLOCATE_VPP_get(struct mlx4_dev *dev, u8 port, | |
ba5c4dac | 99 | u16 *available_vpp, u8 *vpp_p_up); |
7e95bb99 IS |
100 | /** |
101 | * mlx4_ALLOCATE_VPP_set - Distribution of VPPs among differnt priorities. | |
102 | * The total number of VPPs assigned to all for a port must not exceed | |
ba5c4dac | 103 | * the value reported by available_vpp in mlx4_ALLOCATE_VPP_get. |
7e95bb99 IS |
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 | **/ | |
113 | int mlx4_ALLOCATE_VPP_set(struct mlx4_dev *dev, u8 port, u8 *vpp_p_up); | |
12a889c0 | 114 | |
1c29146d IS |
115 | /** |
116 | * mlx4_SET_VPORT_QOS_get - Query QoS proporties 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 | **/ | |
127 | int 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 proporties of a Vport. | |
132 | * QoS parameters can be modified at any time, but must be initialized | |
133 | * before any QP is associated with the VPort. | |
134 | * | |
135 | * @dev: mlx4_dev. | |
136 | * @port: Physical port number. | |
137 | * @vport: Vport id. | |
7c36e785 | 138 | * @in_param: Array of mlx4_vport_qos_param which holds the requested values. |
1c29146d IS |
139 | * |
140 | * Returns 0 on success or a negative mlx4_core errno code. | |
141 | **/ | |
142 | int mlx4_SET_VPORT_QOS_set(struct mlx4_dev *dev, u8 port, u8 vport, | |
143 | struct mlx4_vport_qos_param *in_param); | |
144 | ||
12a889c0 | 145 | #endif /* MLX4_FW_QOS_H */ |