drivers/net/ethernet/mellanox/mlx4/fw_qos.h

   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
  44 /**
  45  * mlx4_SET_PORT_PRIO2TC - This routine maps user priorities to traffic
  46  * classes of a given port and device.
  47  *
  48  * @dev: mlx4_dev.
  49  * @port: Physical port number.
  50  * @prio2tc: Array of TC associated with each priorities.
  51  *
  52  * Returns 0 on success or a negative mlx4_core errno code.
  53  **/
  54 int mlx4_SET_PORT_PRIO2TC(struct mlx4_dev *dev, u8 port, u8 *prio2tc);
  55
  56 /**
  57  * mlx4_SET_PORT_SCHEDULER - This routine configures the arbitration between
  58  * traffic classes (ETS) and configured rate limit for traffic classes.
  59  * tc_tx_bw, pg and ratelimit are arrays where each index represents a TC.
  60  * The description for those parameters below refers to a single TC.
  61  *
  62  * @dev: mlx4_dev.
  63  * @port: Physical port number.
  64  * @tc_tx_bw: The percentage of the bandwidth allocated for traffic class
  65  *  within a TC group. The sum of the bw_percentage of all the traffic
  66  *  classes within a TC group must equal 100% for correct operation.
  67  * @pg: The TC group the traffic class is associated with.
  68  * @ratelimit: The maximal bandwidth allowed for the use by this traffic class.
  69  *
  70  * Returns 0 on success or a negative mlx4_core errno code.
  71  **/
  72 int mlx4_SET_PORT_SCHEDULER(struct mlx4_dev *dev, u8 port, u8 *tc_tx_bw,
  73                             u8 *pg, u16 *ratelimit);
  74
  75 #endif /* MLX4_FW_QOS_H */