path: root/drivers/net/ethernet/mellanox/mlx4/mlx4.h

/*
 * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
 * Copyright (c) 2005, 2006, 2007 Cisco Systems.  All rights reserved.
 * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
 * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - 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.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef MLX4_H
#define MLX4_H

#include <linux/mutex.h>
#include <linux/radix-tree.h>
#include <linux/rbtree.h>
#include <linux/timer.h>
#include <linux/semaphore.h>
#include <linux/workqueue.h>

#include <linux/mlx4/device.h>
#include <linux/mlx4/driver.h>
#include <linux/mlx4/doorbell.h>
#include <linux/mlx4/cmd.h>

#define DRV_NAME	"mlx4_core"
#define PFX		DRV_NAME ": "
#define DRV_VERSION	"1.1"
#define DRV_RELDATE	"Dec, 2011"

#define MLX4_FS_UDP_UC_EN		(1 << 1)
#define MLX4_FS_TCP_UC_EN		(1 << 2)
#define MLX4_FS_NUM_OF_L2_ADDR		8
#define MLX4_FS_MGM_LOG_ENTRY_SIZE	7
#define MLX4_FS_NUM_MCG			(1 << 17)

#define INIT_HCA_TPT_MW_ENABLE          (1 << 7)

#define MLX4_NUM_UP		8
#define MLX4_NUM_TC		8
#define MLX4_RATELIMIT_UNITS 3 /* 100 Mbps */
#define MLX4_RATELIMIT_DEFAULT 0xffff

struct mlx4_set_port_prio2tc_context {
	u8 prio2tc[4];
};

struct mlx4_port_scheduler_tc_cfg_be {
	__be16 pg;
	__be16 bw_precentage;
	__be16 max_bw_units; /* 3-100Mbps, 4-1Gbps, other values - reserved */
	__be16 max_bw_value;
};

struct mlx4_set_port_scheduler_context {
	struct mlx4_port_scheduler_tc_cfg_be tc[MLX4_NUM_TC];
};

enum {
	MLX4_HCR_BASE		= 0x80680,
	MLX4_HCR_SIZE		= 0x0001c,
	MLX4_CLR_INT_SIZE	= 0x00008,
	MLX4_SLAVE_COMM_BASE	= 0x0,
	MLX4_COMM_PAGESIZE	= 0x1000,
	MLX4_CLOCK_SIZE		= 0x00008
};

enum {
	MLX4_DEFAULT_MGM_LOG_ENTRY_SIZE = 10,
	MLX4_MIN_MGM_LOG_ENTRY_SIZE = 7,
	MLX4_MAX_MGM_LOG_ENTRY_SIZE = 12,
	MLX4_MAX_QP_PER_MGM = 4 * ((1 << MLX4_MAX_MGM_LOG_ENTRY_SIZE) / 16 - 2),
	MLX4_MTT_ENTRY_PER_SEG	= 8,
};

enum {
	MLX4_NUM_PDS		= 1 << 15
};

enum {
	MLX4_CMPT_TYPE_QP	= 0,
	MLX4_CMPT_TYPE_SRQ	= 1,
	MLX4_CMPT_TYPE_CQ	= 2,
	MLX4_CMPT_TYPE_EQ	= 3,
	MLX4_CMPT_NUM_TYPE
};

enum {
	MLX4_CMPT_SHIFT		= 24,
	MLX4_NUM_CMPTS		= MLX4_CMPT_NUM_TYPE << MLX4_CMPT_SHIFT
};

enum mlx4_mpt_state {
	MLX4_MPT_DISABLED = 0,
	MLX4_MPT_EN_HW,
	MLX4_MPT_EN_SW
};

#define MLX4_COMM_TIME		10000
enum {
	MLX4_COMM_CMD_RESET,
	MLX4_COMM_CMD_VHCR0,
	MLX4_COMM_CMD_VHCR1,
	MLX4_COMM_CMD_VHCR2,
	MLX4_COMM_CMD_VHCR_EN,
	MLX4_COMM_CMD_VHCR_POST,
	MLX4_COMM_CMD_FLR = 254
};

/*The flag indicates that the slave should delay the RESET cmd*/