text: /*
   * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
   * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
   * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.
   * Copyright (c) 2005 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.
   *
   * $Id: mthca_dev.h 1349 2004-12-16 21:09:43Z roland $
   */
  
  #ifndef MTHCA_DEV_H
  #define MTHCA_DEV_H
  
  #include <linux/spinlock.h>
  #include <linux/kernel.h>
  #include <linux/pci.h>
  #include <linux/dma-mapping.h>
  #include <linux/timer.h>
  #include <linux/mutex.h>
  #include <linux/list.h>
  
  #include <asm/semaphore.h>
  
  #include "mthca_provider.h"
  #include "mthca_doorbell.h"
  
  #define DRV_NAME	"ib_mthca"
  #define PFX		DRV_NAME ": "
  #define DRV_VERSION	"0.08"
  #define DRV_RELDATE	"February 14, 2006"
  
  enum {
  	MTHCA_FLAG_DDR_HIDDEN = 1 << 1,
  	MTHCA_FLAG_SRQ        = 1 << 2,
  	MTHCA_FLAG_MSI        = 1 << 3,
  	MTHCA_FLAG_MSI_X      = 1 << 4,
  	MTHCA_FLAG_NO_LAM     = 1 << 5,
  	MTHCA_FLAG_FMR        = 1 << 6,
  	MTHCA_FLAG_MEMFREE    = 1 << 7,
  	MTHCA_FLAG_PCIE       = 1 << 8,
  	MTHCA_FLAG_SINAI_OPT  = 1 << 9
  };
  
  enum {
  	MTHCA_MAX_PORTS = 2
  };
  
  enum {
  	MTHCA_BOARD_ID_LEN = 64
  };
  
  enum {
  	MTHCA_EQ_CONTEXT_SIZE =  0x40,
  	MTHCA_CQ_CONTEXT_SIZE =  0x40,
  	MTHCA_QP_CONTEXT_SIZE = 0x200,
  	MTHCA_RDB_ENTRY_SIZE  =  0x20,
  	MTHCA_AV_SIZE         =  0x20,
  	MTHCA_MGM_ENTRY_SIZE  =  0x40,
  
  	/* Arbel FW gives us these, but we need them for Tavor */
  	MTHCA_MPT_ENTRY_SIZE  =  0x40,
  	MTHCA_MTT_SEG_SIZE    =  0x40,
  
  	MTHCA_QP_PER_MGM      = 4 * (MTHCA_MGM_ENTRY_SIZE / 16 - 2)
  };
  
  enum {
  	MTHCA_EQ_CMD,
  	MTHCA_EQ_ASYNC,
  	MTHCA_EQ_COMP,
  	MTHCA_NUM_EQ
  };
  
  enum {
  	MTHCA_OPCODE_NOP            = 0x00,
  	MTHCA_OPCODE_RDMA_WRITE     = 0x08,
  	MTHCA_OPCODE_RDMA_WRITE_IMM = 0x09,
  	MTHCA_OPCODE_SEND           = 0x0a,
  	MTHCA_OPCODE_SEND_IMM       = 0x0b,
  	MTHCA_OPCODE_RDMA_READ      = 0x10,
  	MTHCA_OPCODE_ATOMIC_CS      = 0x11,
  	MTHCA_OPCODE_ATOMIC_FA      = 0x12,
  	MTHCA_OPCODE_BIND_MW        = 0x18,
  	MTHCA_OPCODE_INVALID        = 0xff
  };
  
  enum {
  	MTHCA_CMD_USE_EVENTS         = 1 << 0,
  	MTHCA_CMD_POST_DOORBELLS     = 1 << 1
  };
  
  enum {
  	MTHCA_CMD_NUM_DBELL_DWORDS = 8
  };
  
  struct mthca_cmd {
  	struct pci_pool          *pool;
  	struct mutex              hcr_mutex;
  	struct semaphore 	  poll_sem;
  	struct semaphore 	  event_sem;
  	int              	  max_cmds;
  	spinlock_t                context_lock;
  	int                       free_head;
  	struct mthca_cmd_context *context;
  	u16                       token_mask;
  	u32                       flags;
  	void __iomem             *dbell_map;
  	u16                       dbell_offsets[MTHCA_CMD_NUM_DBELL_DWORDS];
  };
  
  struct mthca_limits {
  	int      num_ports;
  	int      vl_cap;
  	int      mtu_cap;
  	int      gid_table_len;
  	int      pkey_table_len;
  	int      local_ca_ack_delay;
  	int      num_uars;
  	int      max_sg;
  	int      num_qps;
  	int      max_wqes;
  	int	 max_desc_sz;
  	int	 max_qp_init_rdma;
  	int      reserved_qps;
  	int      num_srqs;
  	int      max_srq_wqes;
  	int      max_srq_sge;
  	int      reserved_srqs;
  	int      num_eecs;
  	int      reserved_eecs;
  	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_pds;
  	int      reserved_pds;
  	u32      page_size_cap;
  	u32      flags;
  	u16      stat_rate_support;
  	u8       port_width_cap;
  };
  
  struct mthca_alloc {
  	u32            last;
  	u32            top;
  	u32            max;
  	u32            mask;
  	spinlock_t     lock;
  	unsigned long *table;
  };
  
  struct mthca_array {
  	struct {
  		void    **page;
  		int       used;
  	} *page_list;
  };
  
  struct mthca_uar_table {
  	struct mthca_alloc alloc;
  	u64                uarc_base;
  	int                uarc_size;
  };
  
  struct mthca_pd_table {
  	struct mthca_alloc alloc;
  };
  
  struct mthca_buddy {
  	unsigned long **bits;
  	int             max_order;
  	spinlock_t      lock;
  };
  
  struct mthca_mr_table {
  	struct mthca_alloc      mpt_alloc;
  	struct mthca_buddy      mtt_buddy;
  	struct mthca_buddy     *fmr_mtt_buddy;
  	u64                     mtt_base;
  	u64                     mpt_base;
  	struct mthca_icm_table *mtt_table;
  	struct mthca_icm_table *mpt_table;
  	struct {
  		void __iomem   *mpt_base;
  		void __iomem   *mtt_base;
  		struct mthca_buddy mtt_buddy;
  	} tavor_fmr;
  };
  
  struct mthca_eq_table {
  	struct mthca_alloc alloc;
  	void __iomem      *clr_int;
  	u32                clr_mask;
  	u32                arm_mask;
  	struct mthca_eq    eq[MTHCA_NUM_EQ];
  	u64                icm_virt;
  	struct page       *icm_page;
  	dma_addr_t         icm_dma;
  	int                have_irq;
  	u8                 inta_pin;
  };
  
  struct mthca_cq_table {
  	struct mthca_alloc 	alloc;
  	spinlock_t         	lock;
  	struct mthca_array      cq;
  	struct mthca_icm_table *table;
  };
  
  struct mthca_srq_table {
  	struct mthca_alloc 	alloc;
  	spinlock_t         	lock;
  	struct mthca_array      srq;
  	struct mthca_icm_table *table;
  };
  
  struct mthca_qp_table {
  	struct mthca_alloc     	alloc;
  	u32                    	rdb_base;
  	int                    	rdb_shift;
  	int                    	sqp_start;
  	spinlock_t             	lock;
  	struct mthca_array     	qp;
  	struct mthca_icm_table *qp_table;
  	struct mthca_icm_table *eqp_table;
  	struct mthca_icm_table *rdb_table;
  };
  
  struct mthca_av_table {
  	struct pci_pool   *pool;
  	int                num_ddr_avs;
  	u64                ddr_av_base;
  	void __iomem      *av_map;
  	struct mthca_alloc alloc;
  };
  
  struct mthca_mcg_table {
  	struct mutex		mutex;
  	struct mthca_alloc 	alloc;
  	struct mthca_icm_table *table;
  };
  
  struct mthca_catas_err {
  	u64			addr;
  	u32 __iomem	       *map;
  	unsigned long		stop;
  	u32			size;
  	struct timer_list	timer;
  	struct list_head	list;
  };
  
  extern struct mutex mthca_device_mutex;
  
  struct mthca_dev {
  	struct ib_device  ib_dev;
  	struct pci_dev   *pdev;
  
  	int          	 hca_type;
  	unsigned long	 mthca_flags;
  	unsigned long    device_cap_flags;
  
  	u32              rev_id;
  	char             board_id[MTHCA_BOARD_ID_LEN];
  
  	/* firmware info */
  	u64              fw_ver;
  	union {
  		struct {
  			u64 fw_start;
  			u64 fw_end;
  		}        tavor;
  		struct {
  			u64 clr_int_base;
  			u64 eq_arm_base;
  			u64 eq_set_ci_base;
  			struct mthca_icm *fw_icm;
  			struct mthca_icm *aux_icm;
  			u16 fw_pages;
  		}        arbel;
  	}                fw;
  
  	u64              ddr_start;
  	u64              ddr_end;
  
  	MTHCA_DECLARE_DOORBELL_LOCK(doorbell_lock)
  	struct mutex cap_mask_mutex;
  
  	void __iomem    *hcr;
  	void __iomem    *kar;
  	void __iomem    *clr_base;
  	union {
  		struct {
  			void __iomem *ecr_base;
  		} tavor;
  		struct {
  			void __iomem *eq_arm;
  			void __iomem *eq_set_ci_base;
  		} arbel;
  	} eq_regs;
  
  	struct mthca_cmd    cmd;
  	struct mthca_limits limits;
  
  	struct mthca_uar_table uar_table;
  	struct mthca_pd_table  pd_table;
  	struct mthca_mr_table  mr_table;
  	struct mthca_eq_table  eq_table;
  	struct mthca_cq_table  cq_table;
  	struct mthca_srq_table srq_table;
  	struct mthca_qp_table  qp_table;
  	struct mthca_av_table  av_table;
  	struct mthca_mcg_table mcg_table;
  
  	struct mthca_catas_err catas_err;
  
  	struct mthca_uar       driver_uar;
  	struct mthca_db_table *db_tab;
  	struct mthca_pd        driver_pd;
  	struct mthca_mr        driver_mr;
  
  	struct ib_mad_agent  *send_agent[MTHCA_MAX_PORTS][2];
  	struct ib_ah         *sm_ah[MTHCA_MAX_PORTS];
  	spinlock_t            sm_lock;
  	u8                    rate[MTHCA_MAX_PORTS];
  };
  
  #ifdef CONFIG_INFINIBAND_MTHCA_DEBUG
  extern int mthca_debug_level;
  
  #define mthca_dbg(mdev, format, arg...)					\
  	do {								\
  		if (mthca_debug_level)					\
  			dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ## arg); \
  	} while (0)
  
  #else /* CONFIG_INFINIBAND_MTHCA_DEBUG */
  
  #define mthca_dbg(mdev, format, arg...) do { (void) mdev; } while (0)
  
  #endif /* CONFIG_INFINIBAND_MTHCA_DEBUG */
  
  #define mthca_err(mdev, format, arg...) \
  	dev_err(&mdev->pdev->dev, format, ## arg)
  #define mthca_info(mdev, format, arg...) \
  	dev_info(&mdev->pdev->dev, format, ## arg)
  #define mthca_warn(mdev, format, arg...) \
  	dev_warn(&mdev->pdev->dev, format, ## arg)
  
  extern void __buggy_use_of_MTHCA_GET(void);
  extern void __buggy_use_of_MTHCA_PUT(void);
  
  #define MTHCA_GET(dest, source, offset)                               \
  	do {                                                          \
  		void *__p = (char *) (source) + (offset);             \
  		switch (sizeof (dest)) {                              \
  			case 1: (dest) = *(u8 *) __p;       break;    \
  			case 2: (dest) = be16_to_cpup(__p); break;    \
  			case 4: (dest) = be32_to_cpup(__p); break;    \
  			case 8: (dest) = be64_to_cpup(__p); break;    \
  			default: __buggy_use_of_MTHCA_GET();          \
  		}                                                     \
  	} while (0)
  
  #define MTHCA_PUT(dest, source, offset)                               \
  	do {                                                          \
  		void *__d = ((char *) (dest) + (offset));	      \
  		switch (sizeof(source)) {                             \
  		case 1: *(u8 *) __d = (source);                break; \
  		case 2:	*(__be16 *) __d = cpu_to_be16(source); break; \
  		case 4:	*(__be32 *) __d = cpu_to_be32(source); break; \
  		case 8:	*(__be64 *) __d = cpu_to_be64(source); break; \
  		default: __buggy_use_of_MTHCA_PUT();		      \
  		}                                                     \
  	} while (0)
  
  int mthca_reset(struct mthca_dev *mdev);
  
  u32 mthca_alloc(struct mthca_alloc *alloc);
  void mthca_free(struct mthca_alloc *alloc, u32 obj);
  int mthca_alloc_init(struct mthca_alloc *alloc, u32 num, u32 mask,
  		     u32 reserved);
  void mthca_alloc_cleanup(struct mthca_alloc *alloc);
  void *mthca_array_get(struct mthca_array *array, int index);
  int mthca_array_set(struct mthca_array *array, int index, void *value);
  void mthca_array_clear(struct mthca_array *array, int index);
  int mthca_array_init(struct mthca_array *array, int nent);
  void mthca_array_cleanup(struct mthca_array *array, int nent);
  int mthca_buf_alloc(struct mthca_dev *dev, int size, int max_direct,
  		    union mthca_buf *buf, int *is_direct, struct mthca_pd *pd,
  		    int hca_write, struct mthca_mr *mr);
  void mthca_buf_free(struct mthca_dev *dev, int size, union mthca_buf *buf,
  		    int is_direct, struct mthca_mr *mr);
  
  int mthca_init_uar_table(struct mthca_dev *dev);
  int mthca_init_pd_table(struct mthca_dev *dev);
  int mthca_init_mr_table(struct mthca_dev *dev);
  int mthca_init_eq_table(struct mthca_dev *dev);
  int mthca_init_cq_table(struct mthca_dev *dev);
  int mthca_init_srq_table(struct mthca_dev *dev);
  int mthca_init_qp_table(struct mthca_dev *dev);
  int mthca_init_av_table(struct mthca_dev *dev);
  int mthca_init_mcg_table(struct mthca_dev *dev);
  
  void mthca_cleanup_uar_table(struct mthca_dev *dev);
  void mthca_cleanup_pd_table(struct mthca_dev *dev);
  void mthca_cleanup_mr_table(struct mthca_dev *dev);
  void mthca_cleanup_eq_table(struct mthca_dev *dev);
  void mthca_cleanup_cq_table(struct mthca_dev *dev);
  void mthca_cleanup_srq_table(struct mthca_dev *dev);
  void mthca_cleanup_qp_table(struct mthca_dev *dev);
  void mthca_cleanup_av_table(struct mthca_dev *dev);
  void mthca_cleanup_mcg_table(struct mthca_dev *dev);
  
  int mthca_register_device(struct mthca_dev *dev);
  void mthca_unregister_device(struct mthca_dev *dev);
  
  void mthca_start_catas_poll(struct mthca_dev *dev);
  void mthca_stop_catas_poll(struct mthca_dev *dev);
  int __mthca_restart_one(struct pci_dev *pdev);
  int mthca_catas_init(void);
  void mthca_catas_cleanup(void);
  
  int mthca_uar_alloc(struct mthca_dev *dev, struct mthca_uar *uar);
  void mthca_uar_free(struct mthca_dev *dev, struct mthca_uar *uar);
  
  int mthca_pd_alloc(struct mthca_dev *dev, int privileged, struct mthca_pd *pd);
  void mthca_pd_free(struct mthca_dev *dev, struct mthca_pd *pd);
  
  int mthca_write_mtt_size(struct mthca_dev *dev);
  
  struct mthca_mtt *mthca_alloc_mtt(struct mthca_dev *dev, int size);
  void mthca_free_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt);
  int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
  		    int start_index, u64 *buffer_list, int list_len);
  int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
  		   u64 iova, u64 total_size, u32 access, struct mthca_mr *mr);
  int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
  			   u32 access, struct mthca_mr *mr);
  int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
  			u64 *buffer_list, int buffer_size_shift,
  			int list_len, u64 iova, u64 total_size,
  			u32 access, struct mthca_mr *mr);
  void mthca_free_mr(struct mthca_dev *dev,  struct mthca_mr *mr);
  
  int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
  		    u32 access, struct mthca_fmr *fmr);
  int mthca_tavor_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
  			     int list_len, u64 iova);
  void mthca_tavor_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr);
  int mthca_arbel_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
  			     int list_len, u64 iova);
  void mthca_arbel_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr);
  int mthca_free_fmr(struct mthca_dev *dev,  struct mthca_fmr *fmr);
  
  int mthca_map_eq_icm(struct mthca_dev *dev, u64 icm_virt);
  void mthca_unmap_eq_icm(struct mthca_dev *dev);
  
  int mthca_poll_cq(struct ib_cq *ibcq, int num_entries,
  		  struct ib_wc *entry);
  int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify notify);
  int mthca_arbel_arm_cq(struct ib_cq *cq, enum ib_cq_notify notify);
  int mthca_init_cq(struct mthca_dev *dev, int nent,
  		  struct mthca_ucontext *ctx, u32 pdn,
  		  struct mthca_cq *cq);
  void mthca_free_cq(struct mthca_dev *dev,
  		   struct mthca_cq *cq);
  void mthca_cq_completion(struct mthca_dev *dev, u32 cqn);
  void mthca_cq_event(struct mthca_dev *dev, u32 cqn,
  		    enum ib_event_type event_type);
  void mthca_cq_clean(struct mthca_dev *dev, struct mthca_cq *cq, u32 qpn,
  		    struct mthca_srq *srq);
  void mthca_cq_resize_copy_cqes(struct mthca_cq *cq);
  int mthca_alloc_cq_buf(struct mthca_dev *dev, struct mthca_cq_buf *buf, int nent);
  void mthca_free_cq_buf(struct mthca_dev *dev, struct mthca_cq_buf *buf, int cqe);
  
  int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd,
  		    struct ib_srq_attr *attr, struct mthca_srq *srq);
  void mthca_free_srq(struct mthca_dev *dev, struct mthca_srq *srq);
  int mthca_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
  		     enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
  int mthca_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
  int mthca_max_srq_sge(struct mthca_dev *dev);
  void mthca_srq_event(struct mthca_dev *dev, u32 srqn,
  		     enum ib_event_type event_type);
  void mthca_free_srq_wqe(struct mthca_srq *srq, u32 wqe_addr);
  int mthca_tavor_post_srq_recv(struct ib_srq *srq, struct ib_recv_wr *wr,
  			      struct ib_recv_wr **bad_wr);
  int mthca_arbel_post_srq_recv(struct ib_srq *srq, struct ib_recv_wr *wr,
  			      struct ib_recv_wr **bad_wr);
  
  void mthca_qp_event(struct mthca_dev *dev, u32 qpn,
  		    enum ib_event_type event_type);
  int mthca_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask,
  		   struct ib_qp_init_attr *qp_init_attr);
  int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
  		    struct ib_udata *udata);
  int mthca_tavor_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
  			  struct ib_send_wr **bad_wr);
  int mthca_tavor_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
  			     struct ib_recv_wr **bad_wr);
  int mthca_arbel_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
  			  struct ib_send_wr **bad_wr);
  int mthca_arbel_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
  			     struct ib_recv_wr **bad_wr);
  void mthca_free_err_wqe(struct mthca_dev *dev, struct mthca_qp *qp, int is_send,
  			int index, int *dbd, __be32 *new_wqe);
  int mthca_alloc_qp(struct mthca_dev *dev,
  		   struct mthca_pd *pd,
  		   struct mthca_cq *send_cq,
  		   struct mthca_cq *recv_cq,
  		   enum ib_qp_type type,
  		   enum ib_sig_type send_policy,
  		   struct ib_qp_cap *cap,
  		   struct mthca_qp *qp);
  int mthca_alloc_sqp(struct mthca_dev *dev,
  		    struct mthca_pd *pd,
  		    struct mthca_cq *send_cq,
  		    struct mthca_cq *recv_cq,
  		    enum ib_sig_type send_policy,
  		    struct ib_qp_cap *cap,
  		    int qpn,
  		    int port,
  		    struct mthca_sqp *sqp);
  void mthca_free_qp(struct mthca_dev *dev, struct mthca_qp *qp);
  int mthca_create_ah(struct mthca_dev *dev,
  		    struct mthca_pd *pd,
  		    struct ib_ah_attr *ah_attr,
  		    struct mthca_ah *ah);
  int mthca_destroy_ah(struct mthca_dev *dev, struct mthca_ah *ah);
  int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
  		  struct ib_ud_header *header);
  int mthca_ah_query(struct ib_ah *ibah, struct ib_ah_attr *attr);
  int mthca_ah_grh_present(struct mthca_ah *ah);
  u8 mthca_get_rate(struct mthca_dev *dev, int static_rate, u8 port);
  enum ib_rate mthca_rate_to_ib(struct mthca_dev *dev, u8 mthca_rate, u8 port);
  
  int mthca_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
  int mthca_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid);
  
  int mthca_process_mad(struct ib_device *ibdev,
  		      int mad_flags,
  		      u8 port_num,
  		      struct ib_wc *in_wc,
  		      struct ib_grh *in_grh,
  		      struct ib_mad *in_mad,
  		      struct ib_mad *out_mad);
  int mthca_create_agents(struct mthca_dev *dev);
  void mthca_free_agents(struct mthca_dev *dev);
  
  static inline struct mthca_dev *to_mdev(struct ib_device *ibdev)
  {
  	return container_of(ibdev, struct mthca_dev, ib_dev);
  }
  
  static inline int mthca_is_memfree(struct mthca_dev *dev)
  {
  	return dev->mthca_flags & MTHCA_FLAG_MEMFREE;
  }
  
  #endif /* MTHCA_DEV_H */
  