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kernel/linux-rt-4.4.41/drivers/net/ethernet/mellanox/mlxsw/emad.h 4.41 KB
5113f6f70   김현기   kernel add
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  /*
   * drivers/net/ethernet/mellanox/mlxsw/emad.h
   * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
   * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
   * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. Neither the names of the copyright holders nor the names of its
   *    contributors may be used to endorse or promote products derived from
   *    this software without specific prior written permission.
   *
   * Alternatively, this software may be distributed under the terms of the
   * GNU General Public License ("GPL") version 2 as published by the Free
   * Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef _MLXSW_EMAD_H
  #define _MLXSW_EMAD_H
  
  #define MLXSW_EMAD_MAX_FRAME_LEN 1518	/* Length in u8 */
  #define MLXSW_EMAD_MAX_RETRY 5
  
  /* EMAD Ethernet header */
  #define MLXSW_EMAD_ETH_HDR_LEN 0x10	/* Length in u8 */
  #define MLXSW_EMAD_EH_DMAC "\x01\x02\xc9\x00\x00\x01"
  #define MLXSW_EMAD_EH_SMAC "\x00\x02\xc9\x01\x02\x03"
  #define MLXSW_EMAD_EH_ETHERTYPE 0x8932
  #define MLXSW_EMAD_EH_MLX_PROTO 0
  #define MLXSW_EMAD_EH_PROTO_VERSION 0
  
  /* EMAD TLV Types */
  enum {
  	MLXSW_EMAD_TLV_TYPE_END,
  	MLXSW_EMAD_TLV_TYPE_OP,
  	MLXSW_EMAD_TLV_TYPE_DR,
  	MLXSW_EMAD_TLV_TYPE_REG,
  	MLXSW_EMAD_TLV_TYPE_USERDATA,
  	MLXSW_EMAD_TLV_TYPE_OOBETH,
  };
  
  /* OP TLV */
  #define MLXSW_EMAD_OP_TLV_LEN 4		/* Length in u32 */
  
  enum {
  	MLXSW_EMAD_OP_TLV_CLASS_REG_ACCESS = 1,
  	MLXSW_EMAD_OP_TLV_CLASS_IPC = 2,
  };
  
  enum mlxsw_emad_op_tlv_status {
  	MLXSW_EMAD_OP_TLV_STATUS_SUCCESS,
  	MLXSW_EMAD_OP_TLV_STATUS_BUSY,
  	MLXSW_EMAD_OP_TLV_STATUS_VERSION_NOT_SUPPORTED,
  	MLXSW_EMAD_OP_TLV_STATUS_UNKNOWN_TLV,
  	MLXSW_EMAD_OP_TLV_STATUS_REGISTER_NOT_SUPPORTED,
  	MLXSW_EMAD_OP_TLV_STATUS_CLASS_NOT_SUPPORTED,
  	MLXSW_EMAD_OP_TLV_STATUS_METHOD_NOT_SUPPORTED,
  	MLXSW_EMAD_OP_TLV_STATUS_BAD_PARAMETER,
  	MLXSW_EMAD_OP_TLV_STATUS_RESOURCE_NOT_AVAILABLE,
  	MLXSW_EMAD_OP_TLV_STATUS_MESSAGE_RECEIPT_ACK,
  	MLXSW_EMAD_OP_TLV_STATUS_INTERNAL_ERROR = 0x70,
  };
  
  static inline char *mlxsw_emad_op_tlv_status_str(u8 status)
  {
  	switch (status) {
  	case MLXSW_EMAD_OP_TLV_STATUS_SUCCESS:
  		return "operation performed";
  	case MLXSW_EMAD_OP_TLV_STATUS_BUSY:
  		return "device is busy";
  	case MLXSW_EMAD_OP_TLV_STATUS_VERSION_NOT_SUPPORTED:
  		return "version not supported";
  	case MLXSW_EMAD_OP_TLV_STATUS_UNKNOWN_TLV:
  		return "unknown TLV";
  	case MLXSW_EMAD_OP_TLV_STATUS_REGISTER_NOT_SUPPORTED:
  		return "register not supported";
  	case MLXSW_EMAD_OP_TLV_STATUS_CLASS_NOT_SUPPORTED:
  		return "class not supported";
  	case MLXSW_EMAD_OP_TLV_STATUS_METHOD_NOT_SUPPORTED:
  		return "method not supported";
  	case MLXSW_EMAD_OP_TLV_STATUS_BAD_PARAMETER:
  		return "bad parameter";
  	case MLXSW_EMAD_OP_TLV_STATUS_RESOURCE_NOT_AVAILABLE:
  		return "resource not available";
  	case MLXSW_EMAD_OP_TLV_STATUS_MESSAGE_RECEIPT_ACK:
  		return "acknowledged. retransmit";
  	case MLXSW_EMAD_OP_TLV_STATUS_INTERNAL_ERROR:
  		return "internal error";
  	default:
  		return "*UNKNOWN*";
  	}
  }
  
  enum {
  	MLXSW_EMAD_OP_TLV_REQUEST,
  	MLXSW_EMAD_OP_TLV_RESPONSE
  };
  
  enum {
  	MLXSW_EMAD_OP_TLV_METHOD_QUERY = 1,
  	MLXSW_EMAD_OP_TLV_METHOD_WRITE = 2,
  	MLXSW_EMAD_OP_TLV_METHOD_SEND = 3,
  	MLXSW_EMAD_OP_TLV_METHOD_EVENT = 5,
  };
  
  /* END TLV */
  #define MLXSW_EMAD_END_TLV_LEN 1	/* Length in u32 */
  
  #endif