/*
* 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/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"
enum {
MLX4_HCR_BASE = 0x80680,
MLX4_HCR_SIZE = 0x0001c,
MLX4_CLR_INT_SIZE = 0x00008,
MLX4_SLAVE_COMM_BASE = 0x0,
MLX4_COMM_PAGESIZE = 0x1000
};
enum {
MLX4_MAX_MGM_ENTRY_SIZE = 0x1000,
MLX4_MAX_QP_PER_MGM = 4 * (MLX4_MAX_MGM_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_mr_state {
MLX4_MR_DISABLED = 0,
MLX4_MR_EN_HW,
MLX4_MR_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*/
#define MLX4_DELAY_RESET_SLAVE 0xbbbbbbb
/*indicates how many retries will be done if we are in the middle of FLR*/
#define NUM_OF_RESET_RETRIES 10
#define SLEEP_TIME_IN_RESET (2 * 1000)
enum mlx4_resource {
RES_QP,
RES_CQ,
RES_SRQ,
RES_XRCD,
RES_MPT,
RES_MTT,
RES_MAC,
RES_VLAN,
RES_EQ,
RES_COUNTER,
MLX4_NUM_OF_RESOURCE_TYPE
};
enum mlx4_alloc_mode {
RES_OP_RESERVE,
RES_OP_RESERVE_AND_MAP,
RES_OP_MAP_ICM,
};
/*
*Virtual HCR structures.
* mlx4_vhcr is the sw representation, in machine endianess
*
* mlx4_vhcr_cmd is the formalized structure, the one that is passed
* to FW to go through communication channel.
* It is big endian, and has the same structure as the physical HCR
* used by command interface
*/
struct mlx4_vhcr {
u64 in_param;
u64 out_param;
u32 in_modifier;
u32 errno;
u16 op;
u16 token;
u8 op_modifier;
u8 e_bit;
};
struct mlx4_vhcr_cmd {
__be64 in_param;
__be32 in_modifier;
__be64 out_param;
__be16 token;
u16 reserved;
u8 status;
u8 flags;
__be16 opcode;
};
struct mlx4_cmd_info {
u16 opcode;
bool has_inbox;
bool has_outbox;
bool out_is_imm;
bool encode_slave_id;
int (*verify)(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox);
int (*wrapper)(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox,
struct mlx4_cmd_mailbox *outbox,
struct mlx4_cmd_info *cmd);
};
#ifdef CONFIG_MLX4_DEBUG
extern int mlx4_debug_level;
#else /* CONFIG_MLX4_DEBUG */
#define mlx4_debug_level (0)
#endif /* CONFIG_MLX4_DEBUG */
#define mlx4_dbg(mdev, format, arg...) \
do { \
if (mlx4_debug_level) \
dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ##arg); \
} while (0)
#define mlx4_err(mdev, format, arg...) \
dev_err(&mdev->pdev->dev, format, ##arg)
#define mlx4_info(mdev, format, arg...) \
dev_info(&mdev->pdev->dev, format, ##arg)
#define mlx4_warn(mdev, format, arg...) \
dev_warn(&mdev->pdev->dev, format, ##arg)
extern int mlx4_log_num_mgm_entry_size;
extern int log_mtts_per_seg;
#define MLX4_MAX_NUM_SLAVES (MLX4_MAX_NUM_PF + MLX4_MAX_NUM_VF)