include/linux/mlx4/device.h - arm/linux-arm64-legacy - Git at Google

 /*
  * Copyright (c) 2006, 2007 Cisco Systems, 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_DEVICE_H
 #define MLX4_DEVICE_H

 #include <linux/pci.h>
 #include <linux/completion.h>
 #include <linux/radix-tree.h>

 #include <asm/atomic.h>

 enum {
 	MLX4_FLAG_MSI_X		= 1 << 0,
 	MLX4_FLAG_OLD_PORT_CMDS	= 1 << 1,
 };

 enum {
 	MLX4_MAX_PORTS		= 2
 };

 enum {
 	MLX4_BOARD_ID_LEN = 64
 };

 enum {
 	MLX4_DEV_CAP_FLAG_RC		= 1 <<  0,
 	MLX4_DEV_CAP_FLAG_UC		= 1 <<  1,
 	MLX4_DEV_CAP_FLAG_UD		= 1 <<  2,
 	MLX4_DEV_CAP_FLAG_SRQ		= 1 <<  6,
 	MLX4_DEV_CAP_FLAG_IPOIB_CSUM	= 1 <<  7,
 	MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR	= 1 <<  8,
 	MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR	= 1 <<  9,
 	MLX4_DEV_CAP_FLAG_MEM_WINDOW	= 1 << 16,
 	MLX4_DEV_CAP_FLAG_APM		= 1 << 17,
 	MLX4_DEV_CAP_FLAG_ATOMIC	= 1 << 18,
 	MLX4_DEV_CAP_FLAG_RAW_MCAST	= 1 << 19,
 	MLX4_DEV_CAP_FLAG_UD_AV_PORT	= 1 << 20,
 	MLX4_DEV_CAP_FLAG_UD_MCAST	= 1 << 21
 };

 enum mlx4_event {
 	MLX4_EVENT_TYPE_COMP		   = 0x00,
 	MLX4_EVENT_TYPE_PATH_MIG	   = 0x01,
 	MLX4_EVENT_TYPE_COMM_EST	   = 0x02,
 	MLX4_EVENT_TYPE_SQ_DRAINED	   = 0x03,
 	MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE	   = 0x13,
 	MLX4_EVENT_TYPE_SRQ_LIMIT	   = 0x14,
 	MLX4_EVENT_TYPE_CQ_ERROR	   = 0x04,
 	MLX4_EVENT_TYPE_WQ_CATAS_ERROR	   = 0x05,
 	MLX4_EVENT_TYPE_EEC_CATAS_ERROR	   = 0x06,
 	MLX4_EVENT_TYPE_PATH_MIG_FAILED	   = 0x07,
 	MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10,
 	MLX4_EVENT_TYPE_WQ_ACCESS_ERROR	   = 0x11,
 	MLX4_EVENT_TYPE_SRQ_CATAS_ERROR	   = 0x12,
 	MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR  = 0x08,
 	MLX4_EVENT_TYPE_PORT_CHANGE	   = 0x09,
 	MLX4_EVENT_TYPE_EQ_OVERFLOW	   = 0x0f,
 	MLX4_EVENT_TYPE_ECC_DETECT	   = 0x0e,
 	MLX4_EVENT_TYPE_CMD		   = 0x0a
 };

 enum {
 	MLX4_PORT_CHANGE_SUBTYPE_DOWN	= 1,
 	MLX4_PORT_CHANGE_SUBTYPE_ACTIVE	= 4
 };

 enum {
 	MLX4_PERM_LOCAL_READ	= 1 << 10,
 	MLX4_PERM_LOCAL_WRITE	= 1 << 11,
 	MLX4_PERM_REMOTE_READ	= 1 << 12,
 	MLX4_PERM_REMOTE_WRITE	= 1 << 13,
 	MLX4_PERM_ATOMIC	= 1 << 14
 };

 enum {
 	MLX4_OPCODE_NOP			= 0x00,
 	MLX4_OPCODE_SEND_INVAL		= 0x01,
 	MLX4_OPCODE_RDMA_WRITE		= 0x08,
 	MLX4_OPCODE_RDMA_WRITE_IMM	= 0x09,
 	MLX4_OPCODE_SEND		= 0x0a,
 	MLX4_OPCODE_SEND_IMM		= 0x0b,
 	MLX4_OPCODE_LSO			= 0x0e,
 	MLX4_OPCODE_RDMA_READ		= 0x10,
 	MLX4_OPCODE_ATOMIC_CS		= 0x11,
 	MLX4_OPCODE_ATOMIC_FA		= 0x12,
 	MLX4_OPCODE_ATOMIC_MASK_CS	= 0x14,
 	MLX4_OPCODE_ATOMIC_MASK_FA	= 0x15,
 	MLX4_OPCODE_BIND_MW		= 0x18,
 	MLX4_OPCODE_FMR			= 0x19,
 	MLX4_OPCODE_LOCAL_INVAL		= 0x1b,
 	MLX4_OPCODE_CONFIG_CMD		= 0x1f,

 	MLX4_RECV_OPCODE_RDMA_WRITE_IMM	= 0x00,
 	MLX4_RECV_OPCODE_SEND		= 0x01,
 	MLX4_RECV_OPCODE_SEND_IMM	= 0x02,
 	MLX4_RECV_OPCODE_SEND_INVAL	= 0x03,

 	MLX4_CQE_OPCODE_ERROR		= 0x1e,
 	MLX4_CQE_OPCODE_RESIZE		= 0x16,
 };

 enum {
 	MLX4_STAT_RATE_OFFSET	= 5
 };

 static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor)
 {
 	return (major << 32) | (minor << 16) | subminor;
 }

 struct mlx4_caps {
 	u64			fw_ver;
 	int			num_ports;
 	int			vl_cap[MLX4_MAX_PORTS + 1];
 	int			mtu_cap[MLX4_MAX_PORTS + 1];
 	int			gid_table_len[MLX4_MAX_PORTS + 1];
 	int			pkey_table_len[MLX4_MAX_PORTS + 1];
 	int			local_ca_ack_delay;
 	int			num_uars;
 	int			bf_reg_size;
 	int			bf_regs_per_page;
 	int			max_sq_sg;
 	int			max_rq_sg;
 	int			num_qps;
 	int			max_wqes;
 	int			max_sq_desc_sz;
 	int			max_rq_desc_sz;
 	int			max_qp_init_rdma;
 	int			max_qp_dest_rdma;
 	int			reserved_qps;
 	int			sqp_start;
 	int			num_srqs;
 	int			max_srq_wqes;
 	int			max_srq_sge;
 	int			reserved_srqs;
 	int			num_cqs;
 	int			max_cqes;
 	int			reserved_cqs;
 	int			num_eqs;
 	int			reserved_eqs;
 	int			num_mpts;
 	int			num_mtt_segs;
 	int			fmr_reserved_mtts;
 	int			reserved_mtts;
 	int			reserved_mrws;
 	int			reserved_uars;
 	int			num_mgms;
 	int			num_amgms;
 	int			reserved_mcgs;
 	int			num_qp_per_mgm;
 	int			num_pds;
 	int			reserved_pds;
 	int			mtt_entry_sz;
 	u32			max_msg_sz;
 	u32			page_size_cap;
 	u32			flags;
 	u16			stat_rate_support;
 	u8			port_width_cap[MLX4_MAX_PORTS + 1];
 };

 struct mlx4_buf_list {
 	void		       *buf;
 	dma_addr_t		map;
 };

 struct mlx4_buf {
 	struct mlx4_buf_list	direct;
 	struct mlx4_buf_list   *page_list;
 	int			nbufs;
 	int			npages;
 	int			page_shift;
 };

 struct mlx4_mtt {
 	u32			first_seg;
 	int			order;
 	int			page_shift;
 };

 struct mlx4_mr {
 	struct mlx4_mtt		mtt;
 	u64			iova;
 	u64			size;
 	u32			key;
 	u32			pd;
 	u32			access;
 	int			enabled;
 };

 struct mlx4_fmr {
 	struct mlx4_mr		mr;
 	struct mlx4_mpt_entry  *mpt;
 	__be64		       *mtts;
 	dma_addr_t		dma_handle;
 	int			max_pages;
 	int			max_maps;
 	int			maps;
 	u8			page_shift;
 };

 struct mlx4_uar {
 	unsigned long		pfn;
 	int			index;
 };

 struct mlx4_cq {
 	void (*comp)		(struct mlx4_cq *);
 	void (*event)		(struct mlx4_cq *, enum mlx4_event);

 	struct mlx4_uar	       *uar;

 	u32			cons_index;

 	__be32		       *set_ci_db;
 	__be32		       *arm_db;
 	int			arm_sn;

 	int			cqn;

 	atomic_t		refcount;
 	struct completion	free;
 };

 struct mlx4_qp {
 	void (*event)		(struct mlx4_qp *, enum mlx4_event);

 	int			qpn;

 	atomic_t		refcount;
 	struct completion	free;
 };

 struct mlx4_srq {
 	void (*event)		(struct mlx4_srq *, enum mlx4_event);

 	int			srqn;
 	int			max;
 	int			max_gs;
 	int			wqe_shift;

 	atomic_t		refcount;
 	struct completion	free;
 };

 struct mlx4_av {
 	__be32			port_pd;
 	u8			reserved1;
 	u8			g_slid;
 	__be16			dlid;
 	u8			reserved2;
 	u8			gid_index;
 	u8			stat_rate;
 	u8			hop_limit;
 	__be32			sl_tclass_flowlabel;
 	u8			dgid[16];
 };

 struct mlx4_dev {
 	struct pci_dev	       *pdev;
 	unsigned long		flags;
 	struct mlx4_caps	caps;
 	struct radix_tree_root	qp_table_tree;
 	u32			rev_id;
 	char			board_id[MLX4_BOARD_ID_LEN];
 };

 struct mlx4_init_port_param {
 	int			set_guid0;
 	int			set_node_guid;
 	int			set_si_guid;
 	u16			mtu;
 	int			port_width_cap;
 	u16			vl_cap;
 	u16			max_gid;
 	u16			max_pkey;
 	u64			guid0;
 	u64			node_guid;
 	u64			si_guid;
 };

 int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
 		   struct mlx4_buf *buf);
 void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf);
 static inline void *mlx4_buf_offset(struct mlx4_buf *buf, int offset)
 {
 	if (BITS_PER_LONG == 64 || buf->nbufs == 1)
 		return buf->direct.buf + offset;
 	else
 		return buf->page_list[offset >> PAGE_SHIFT].buf +
 			(offset & (PAGE_SIZE - 1));
 }

 int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn);
 void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);

 int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar);
 void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar);

 int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
 		  struct mlx4_mtt *mtt);
 void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt);
 u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt);

 int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
 		  int npages, int page_shift, struct mlx4_mr *mr);
 void mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr);
 int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr);
 int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 		   int start_index, int npages, u64 *page_list);
 int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
 		       struct mlx4_buf *buf);

 int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
 		  struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq);
 void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq);

 int mlx4_qp_alloc(struct mlx4_dev *dev, int sqpn, struct mlx4_qp *qp);
 void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp);

 int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
 		   u64 db_rec, struct mlx4_srq *srq);
 void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq);
 int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark);
 int mlx4_srq_query(struct mlx4_dev *dev, struct mlx4_srq *srq, int *limit_watermark);

 int mlx4_INIT_PORT(struct mlx4_dev *dev, int port);
 int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);

 int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);
 int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]);

 int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list,
 		      int npages, u64 iova, u32 *lkey, u32 *rkey);
 int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages,
 		   int max_maps, u8 page_shift, struct mlx4_fmr *fmr);
 int mlx4_fmr_enable(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
 void mlx4_fmr_unmap(struct mlx4_dev *dev, struct mlx4_fmr *fmr,
 		    u32 *lkey, u32 *rkey);
 int mlx4_fmr_free(struct mlx4_dev *dev, struct mlx4_fmr *fmr);
 int mlx4_SYNC_TPT(struct mlx4_dev *dev);

 #endif /* MLX4_DEVICE_H */
	/*
	* Copyright (c) 2006, 2007 Cisco Systems, 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_DEVICE_H
	#define MLX4_DEVICE_H

	#include <linux/pci.h>
	#include <linux/completion.h>
	#include <linux/radix-tree.h>

	#include <asm/atomic.h>

	enum {
	MLX4_FLAG_MSI_X = 1 << 0,
	MLX4_FLAG_OLD_PORT_CMDS = 1 << 1,
	};

	enum {
	MLX4_MAX_PORTS = 2
	};

	enum {
	MLX4_BOARD_ID_LEN = 64
	};

	enum {
	MLX4_DEV_CAP_FLAG_RC = 1 << 0,
	MLX4_DEV_CAP_FLAG_UC = 1 << 1,
	MLX4_DEV_CAP_FLAG_UD = 1 << 2,
	MLX4_DEV_CAP_FLAG_SRQ = 1 << 6,
	MLX4_DEV_CAP_FLAG_IPOIB_CSUM = 1 << 7,
	MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1 << 8,
	MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR = 1 << 9,
	MLX4_DEV_CAP_FLAG_MEM_WINDOW = 1 << 16,
	MLX4_DEV_CAP_FLAG_APM = 1 << 17,
	MLX4_DEV_CAP_FLAG_ATOMIC = 1 << 18,
	MLX4_DEV_CAP_FLAG_RAW_MCAST = 1 << 19,
	MLX4_DEV_CAP_FLAG_UD_AV_PORT = 1 << 20,
	MLX4_DEV_CAP_FLAG_UD_MCAST = 1 << 21
	};

	enum mlx4_event {
	MLX4_EVENT_TYPE_COMP = 0x00,
	MLX4_EVENT_TYPE_PATH_MIG = 0x01,
	MLX4_EVENT_TYPE_COMM_EST = 0x02,
	MLX4_EVENT_TYPE_SQ_DRAINED = 0x03,
	MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE = 0x13,
	MLX4_EVENT_TYPE_SRQ_LIMIT = 0x14,
	MLX4_EVENT_TYPE_CQ_ERROR = 0x04,
	MLX4_EVENT_TYPE_WQ_CATAS_ERROR = 0x05,
	MLX4_EVENT_TYPE_EEC_CATAS_ERROR = 0x06,
	MLX4_EVENT_TYPE_PATH_MIG_FAILED = 0x07,
	MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR = 0x10,
	MLX4_EVENT_TYPE_WQ_ACCESS_ERROR = 0x11,
	MLX4_EVENT_TYPE_SRQ_CATAS_ERROR = 0x12,
	MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR = 0x08,
	MLX4_EVENT_TYPE_PORT_CHANGE = 0x09,
	MLX4_EVENT_TYPE_EQ_OVERFLOW = 0x0f,
	MLX4_EVENT_TYPE_ECC_DETECT = 0x0e,
	MLX4_EVENT_TYPE_CMD = 0x0a
	};

	enum {
	MLX4_PORT_CHANGE_SUBTYPE_DOWN = 1,
	MLX4_PORT_CHANGE_SUBTYPE_ACTIVE = 4
	};

	enum {
	MLX4_PERM_LOCAL_READ = 1 << 10,
	MLX4_PERM_LOCAL_WRITE = 1 << 11,
	MLX4_PERM_REMOTE_READ = 1 << 12,
	MLX4_PERM_REMOTE_WRITE = 1 << 13,
	MLX4_PERM_ATOMIC = 1 << 14
	};

	enum {
	MLX4_OPCODE_NOP = 0x00,
	MLX4_OPCODE_SEND_INVAL = 0x01,
	MLX4_OPCODE_RDMA_WRITE = 0x08,
	MLX4_OPCODE_RDMA_WRITE_IMM = 0x09,
	MLX4_OPCODE_SEND = 0x0a,
	MLX4_OPCODE_SEND_IMM = 0x0b,
	MLX4_OPCODE_LSO = 0x0e,
	MLX4_OPCODE_RDMA_READ = 0x10,
	MLX4_OPCODE_ATOMIC_CS = 0x11,
	MLX4_OPCODE_ATOMIC_FA = 0x12,
	MLX4_OPCODE_ATOMIC_MASK_CS = 0x14,
	MLX4_OPCODE_ATOMIC_MASK_FA = 0x15,
	MLX4_OPCODE_BIND_MW = 0x18,
	MLX4_OPCODE_FMR = 0x19,
	MLX4_OPCODE_LOCAL_INVAL = 0x1b,
	MLX4_OPCODE_CONFIG_CMD = 0x1f,

	MLX4_RECV_OPCODE_RDMA_WRITE_IMM = 0x00,
	MLX4_RECV_OPCODE_SEND = 0x01,
	MLX4_RECV_OPCODE_SEND_IMM = 0x02,
	MLX4_RECV_OPCODE_SEND_INVAL = 0x03,

	MLX4_CQE_OPCODE_ERROR = 0x1e,
	MLX4_CQE_OPCODE_RESIZE = 0x16,
	};

	enum {
	MLX4_STAT_RATE_OFFSET = 5
	};

	static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor)
	{
	return (major << 32) \| (minor << 16) \| subminor;
	}

	struct mlx4_caps {
	u64 fw_ver;
	int num_ports;
	int vl_cap[MLX4_MAX_PORTS + 1];
	int mtu_cap[MLX4_MAX_PORTS + 1];
	int gid_table_len[MLX4_MAX_PORTS + 1];
	int pkey_table_len[MLX4_MAX_PORTS + 1];
	int local_ca_ack_delay;
	int num_uars;
	int bf_reg_size;
	int bf_regs_per_page;
	int max_sq_sg;
	int max_rq_sg;
	int num_qps;
	int max_wqes;
	int max_sq_desc_sz;
	int max_rq_desc_sz;
	int max_qp_init_rdma;
	int max_qp_dest_rdma;
	int reserved_qps;
	int sqp_start;
	int num_srqs;
	int max_srq_wqes;
	int max_srq_sge;
	int reserved_srqs;
	int num_cqs;
	int max_cqes;
	int reserved_cqs;
	int num_eqs;
	int reserved_eqs;
	int num_mpts;
	int num_mtt_segs;
	int fmr_reserved_mtts;
	int reserved_mtts;
	int reserved_mrws;
	int reserved_uars;
	int num_mgms;
	int num_amgms;
	int reserved_mcgs;
	int num_qp_per_mgm;
	int num_pds;
	int reserved_pds;
	int mtt_entry_sz;
	u32 max_msg_sz;
	u32 page_size_cap;
	u32 flags;
	u16 stat_rate_support;
	u8 port_width_cap[MLX4_MAX_PORTS + 1];
	};

	struct mlx4_buf_list {
	void *buf;
	dma_addr_t map;
	};

	struct mlx4_buf {
	struct mlx4_buf_list direct;
	struct mlx4_buf_list *page_list;
	int nbufs;
	int npages;
	int page_shift;
	};

	struct mlx4_mtt {
	u32 first_seg;
	int order;
	int page_shift;
	};

	struct mlx4_mr {
	struct mlx4_mtt mtt;
	u64 iova;
	u64 size;
	u32 key;
	u32 pd;
	u32 access;
	int enabled;
	};

	struct mlx4_fmr {
	struct mlx4_mr mr;
	struct mlx4_mpt_entry *mpt;
	__be64 *mtts;
	dma_addr_t dma_handle;
	int max_pages;
	int max_maps;
	int maps;
	u8 page_shift;
	};

	struct mlx4_uar {
	unsigned long pfn;
	int index;
	};

	struct mlx4_cq {
	void (comp) (struct mlx4_cq );
	void (event) (struct mlx4_cq , enum mlx4_event);

	struct mlx4_uar *uar;

	u32 cons_index;

	__be32 *set_ci_db;
	__be32 *arm_db;
	int arm_sn;

	int cqn;

	atomic_t refcount;
	struct completion free;
	};

	struct mlx4_qp {
	void (event) (struct mlx4_qp , enum mlx4_event);

	int qpn;

	atomic_t refcount;
	struct completion free;
	};

	struct mlx4_srq {
	void (event) (struct mlx4_srq , enum mlx4_event);

	int srqn;
	int max;
	int max_gs;
	int wqe_shift;

	atomic_t refcount;
	struct completion free;
	};

	struct mlx4_av {
	__be32 port_pd;
	u8 reserved1;
	u8 g_slid;
	__be16 dlid;
	u8 reserved2;
	u8 gid_index;
	u8 stat_rate;
	u8 hop_limit;
	__be32 sl_tclass_flowlabel;
	u8 dgid[16];
	};

	struct mlx4_dev {
	struct pci_dev *pdev;
	unsigned long flags;
	struct mlx4_caps caps;
	struct radix_tree_root qp_table_tree;
	u32 rev_id;
	char board_id[MLX4_BOARD_ID_LEN];
	};

	struct mlx4_init_port_param {
	int set_guid0;
	int set_node_guid;
	int set_si_guid;
	u16 mtu;
	int port_width_cap;
	u16 vl_cap;
	u16 max_gid;
	u16 max_pkey;
	u64 guid0;
	u64 node_guid;
	u64 si_guid;
	};

	int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
	struct mlx4_buf *buf);
	void mlx4_buf_free(struct mlx4_dev dev, int size, struct mlx4_buf buf);
	static inline void mlx4_buf_offset(struct mlx4_buf buf, int offset)
	{
	if (BITS_PER_LONG == 64 \|\| buf->nbufs == 1)
	return buf->direct.buf + offset;
	else
	return buf->page_list[offset >> PAGE_SHIFT].buf +
	(offset & (PAGE_SIZE - 1));
	}

	int mlx4_pd_alloc(struct mlx4_dev dev, u32 pdn);
	void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn);

	int mlx4_uar_alloc(struct mlx4_dev dev, struct mlx4_uar uar);
	void mlx4_uar_free(struct mlx4_dev dev, struct mlx4_uar uar);

	int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
	struct mlx4_mtt *mtt);
	void mlx4_mtt_cleanup(struct mlx4_dev dev, struct mlx4_mtt mtt);
	u64 mlx4_mtt_addr(struct mlx4_dev dev, struct mlx4_mtt mtt);

	int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
	int npages, int page_shift, struct mlx4_mr *mr);
	void mlx4_mr_free(struct mlx4_dev dev, struct mlx4_mr mr);
	int mlx4_mr_enable(struct mlx4_dev dev, struct mlx4_mr mr);
	int mlx4_write_mtt(struct mlx4_dev dev, struct mlx4_mtt mtt,
	int start_index, int npages, u64 *page_list);
	int mlx4_buf_write_mtt(struct mlx4_dev dev, struct mlx4_mtt mtt,
	struct mlx4_buf *buf);

	int mlx4_cq_alloc(struct mlx4_dev dev, int nent, struct mlx4_mtt mtt,
	struct mlx4_uar uar, u64 db_rec, struct mlx4_cq cq);
	void mlx4_cq_free(struct mlx4_dev dev, struct mlx4_cq cq);

	int mlx4_qp_alloc(struct mlx4_dev dev, int sqpn, struct mlx4_qp qp);
	void mlx4_qp_free(struct mlx4_dev dev, struct mlx4_qp qp);

	int mlx4_srq_alloc(struct mlx4_dev dev, u32 pdn, struct mlx4_mtt mtt,
	u64 db_rec, struct mlx4_srq *srq);
	void mlx4_srq_free(struct mlx4_dev dev, struct mlx4_srq srq);
	int mlx4_srq_arm(struct mlx4_dev dev, struct mlx4_srq srq, int limit_watermark);
	int mlx4_srq_query(struct mlx4_dev dev, struct mlx4_srq srq, int *limit_watermark);

	int mlx4_INIT_PORT(struct mlx4_dev *dev, int port);
	int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port);

	int mlx4_multicast_attach(struct mlx4_dev dev, struct mlx4_qp qp, u8 gid[16]);
	int mlx4_multicast_detach(struct mlx4_dev dev, struct mlx4_qp qp, u8 gid[16]);

	int mlx4_map_phys_fmr(struct mlx4_dev dev, struct mlx4_fmr fmr, u64 *page_list,
	int npages, u64 iova, u32 lkey, u32 rkey);
	int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages,
	int max_maps, u8 page_shift, struct mlx4_fmr *fmr);
	int mlx4_fmr_enable(struct mlx4_dev dev, struct mlx4_fmr fmr);
	void mlx4_fmr_unmap(struct mlx4_dev dev, struct mlx4_fmr fmr,
	u32 lkey, u32 rkey);
	int mlx4_fmr_free(struct mlx4_dev dev, struct mlx4_fmr fmr);
	int mlx4_SYNC_TPT(struct mlx4_dev *dev);

	#endif /* MLX4_DEVICE_H */