drivers/infiniband/hw/ehca/ehca_classes.h - maze/linux - Git at Google

 /*
  *  IBM eServer eHCA Infiniband device driver for Linux on POWER
  *
  *  Struct definition for eHCA internal structures
  *
  *  Authors: Heiko J Schick <schickhj@de.ibm.com>
  *           Christoph Raisch <raisch@de.ibm.com>
  *
  *  Copyright (c) 2005 IBM Corporation
  *
  *  All rights reserved.
  *
  *  This source code is distributed under a dual license of GPL v2.0 and OpenIB
  *  BSD.
  *
  * OpenIB BSD License
  *
  * 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.
  *
  * 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 __EHCA_CLASSES_H__
 #define __EHCA_CLASSES_H__


 struct ehca_module;
 struct ehca_qp;
 struct ehca_cq;
 struct ehca_eq;
 struct ehca_mr;
 struct ehca_mw;
 struct ehca_pd;
 struct ehca_av;

 #include <linux/wait.h>

 #include <rdma/ib_verbs.h>
 #include <rdma/ib_user_verbs.h>

 #ifdef CONFIG_PPC64
 #include "ehca_classes_pSeries.h"
 #endif
 #include "ipz_pt_fn.h"
 #include "ehca_qes.h"
 #include "ehca_irq.h"

 #define EHCA_EQE_CACHE_SIZE 20

 struct ehca_eqe_cache_entry {
 	struct ehca_eqe *eqe;
 	struct ehca_cq *cq;
 };

 struct ehca_eq {
 	u32 length;
 	struct ipz_queue ipz_queue;
 	struct ipz_eq_handle ipz_eq_handle;
 	struct work_struct work;
 	struct h_galpas galpas;
 	int is_initialized;
 	struct ehca_pfeq pf;
 	spinlock_t spinlock;
 	struct tasklet_struct interrupt_task;
 	u32 ist;
 	spinlock_t irq_spinlock;
 	struct ehca_eqe_cache_entry eqe_cache[EHCA_EQE_CACHE_SIZE];
 };

 struct ehca_sport {
 	struct ib_cq *ibcq_aqp1;
 	struct ib_qp *ibqp_aqp1;
 	enum ib_rate  rate;
 	enum ib_port_state port_state;
 };

 struct ehca_shca {
 	struct ib_device ib_device;
 	struct ibmebus_dev *ibmebus_dev;
 	u8 num_ports;
 	int hw_level;
 	struct list_head shca_list;
 	struct ipz_adapter_handle ipz_hca_handle;
 	struct ehca_sport sport[2];
 	struct ehca_eq eq;
 	struct ehca_eq neq;
 	struct ehca_mr *maxmr;
 	struct ehca_pd *pd;
 	struct h_galpas galpas;
 	struct mutex modify_mutex;
 };

 struct ehca_pd {
 	struct ib_pd ib_pd;
 	struct ipz_pd fw_pd;
 	u32 ownpid;
 };

 struct ehca_qp {
 	struct ib_qp ib_qp;
 	u32 qp_type;
 	struct ipz_queue ipz_squeue;
 	struct ipz_queue ipz_rqueue;
 	struct h_galpas galpas;
 	u32 qkey;
 	u32 real_qp_num;
 	u32 token;
 	spinlock_t spinlock_s;
 	spinlock_t spinlock_r;
 	u32 sq_max_inline_data_size;
 	struct ipz_qp_handle ipz_qp_handle;
 	struct ehca_pfqp pf;
 	struct ib_qp_init_attr init_attr;
 	struct ehca_cq *send_cq;
 	struct ehca_cq *recv_cq;
 	unsigned int sqerr_purgeflag;
 	struct hlist_node list_entries;
 	/* mmap counter for resources mapped into user space */
 	u32 mm_count_squeue;
 	u32 mm_count_rqueue;
 	u32 mm_count_galpa;
 };

 /* must be power of 2 */
 #define QP_HASHTAB_LEN 8

 struct ehca_cq {
 	struct ib_cq ib_cq;
 	struct ipz_queue ipz_queue;
 	struct h_galpas galpas;
 	spinlock_t spinlock;
 	u32 cq_number;
 	u32 token;
 	u32 nr_of_entries;
 	struct ipz_cq_handle ipz_cq_handle;
 	struct ehca_pfcq pf;
 	spinlock_t cb_lock;
 	struct hlist_head qp_hashtab[QP_HASHTAB_LEN];
 	struct list_head entry;
 	u32 nr_callbacks; /* #events assigned to cpu by scaling code */
 	u32 nr_events;    /* #events seen */
 	wait_queue_head_t wait_completion;
 	spinlock_t task_lock;
 	u32 ownpid;
 	/* mmap counter for resources mapped into user space */
 	u32 mm_count_queue;
 	u32 mm_count_galpa;
 };

 enum ehca_mr_flag {
 	EHCA_MR_FLAG_FMR = 0x80000000,	 /* FMR, created with ehca_alloc_fmr */
 	EHCA_MR_FLAG_MAXMR = 0x40000000, /* max-MR                           */
 };

 struct ehca_mr {
 	union {
 		struct ib_mr ib_mr;	/* must always be first in ehca_mr */
 		struct ib_fmr ib_fmr;	/* must always be first in ehca_mr */
 	} ib;
 	struct ib_umem *umem;
 	spinlock_t mrlock;

 	enum ehca_mr_flag flags;
 	u32 num_pages;		/* number of MR pages */
 	u32 num_4k;		/* number of 4k "page" portions to form MR */
 	int acl;		/* ACL (stored here for usage in reregister) */
 	u64 *start;		/* virtual start address (stored here for */
 	                        /* usage in reregister) */
 	u64 size;		/* size (stored here for usage in reregister) */
 	u32 fmr_page_size;	/* page size for FMR */
 	u32 fmr_max_pages;	/* max pages for FMR */
 	u32 fmr_max_maps;	/* max outstanding maps for FMR */
 	u32 fmr_map_cnt;	/* map counter for FMR */
 	/* fw specific data */
 	struct ipz_mrmw_handle ipz_mr_handle;	/* MR handle for h-calls */
 	struct h_galpas galpas;
 	/* data for userspace bridge */
 	u32 nr_of_pages;
 	void *pagearray;
 };

 struct ehca_mw {
 	struct ib_mw ib_mw;	/* gen2 mw, must always be first in ehca_mw */
 	spinlock_t mwlock;

 	u8 never_bound;		/* indication MW was never bound */
 	struct ipz_mrmw_handle ipz_mw_handle;	/* MW handle for h-calls */
 	struct h_galpas galpas;
 };

 enum ehca_mr_pgi_type {
 	EHCA_MR_PGI_PHYS   = 1,  /* type of ehca_reg_phys_mr,
 				  * ehca_rereg_phys_mr,
 				  * ehca_reg_internal_maxmr */
 	EHCA_MR_PGI_USER   = 2,  /* type of ehca_reg_user_mr */
 	EHCA_MR_PGI_FMR    = 3   /* type of ehca_map_phys_fmr */
 };

 struct ehca_mr_pginfo {
 	enum ehca_mr_pgi_type type;
 	u64 num_pages;
 	u64 page_cnt;
 	u64 num_4k;       /* number of 4k "page" portions */
 	u64 page_4k_cnt;  /* counter for 4k "page" portions */
 	u64 next_4k;      /* next 4k "page" portion in buffer/chunk/listelem */

 	/* type EHCA_MR_PGI_PHYS section */
 	int num_phys_buf;
 	struct ib_phys_buf *phys_buf_array;
 	u64 next_buf;

 	/* type EHCA_MR_PGI_USER section */
 	struct ib_umem *region;
 	struct ib_umem_chunk *next_chunk;
 	u64 next_nmap;

 	/* type EHCA_MR_PGI_FMR section */
 	u64 *page_list;
 	u64 next_listelem;
 	/* next_4k also used within EHCA_MR_PGI_FMR */
 };

 /* output parameters for MR/FMR hipz calls */
 struct ehca_mr_hipzout_parms {
 	struct ipz_mrmw_handle handle;
 	u32 lkey;
 	u32 rkey;
 	u64 len;
 	u64 vaddr;
 	u32 acl;
 };

 /* output parameters for MW hipz calls */
 struct ehca_mw_hipzout_parms {
 	struct ipz_mrmw_handle handle;
 	u32 rkey;
 };

 struct ehca_av {
 	struct ib_ah ib_ah;
 	struct ehca_ud_av av;
 };

 struct ehca_ucontext {
 	struct ib_ucontext ib_ucontext;
 };

 int ehca_init_pd_cache(void);
 void ehca_cleanup_pd_cache(void);
 int ehca_init_cq_cache(void);
 void ehca_cleanup_cq_cache(void);
 int ehca_init_qp_cache(void);
 void ehca_cleanup_qp_cache(void);
 int ehca_init_av_cache(void);
 void ehca_cleanup_av_cache(void);
 int ehca_init_mrmw_cache(void);
 void ehca_cleanup_mrmw_cache(void);

 extern spinlock_t ehca_qp_idr_lock;
 extern spinlock_t ehca_cq_idr_lock;
 extern spinlock_t hcall_lock;
 extern struct idr ehca_qp_idr;
 extern struct idr ehca_cq_idr;

 extern int ehca_static_rate;
 extern int ehca_port_act_time;
 extern int ehca_use_hp_mr;
 extern int ehca_scaling_code;

 struct ipzu_queue_resp {
 	u32 qe_size;      /* queue entry size */
 	u32 act_nr_of_sg;
 	u32 queue_length; /* queue length allocated in bytes */
 	u32 pagesize;
 	u32 toggle_state;
 	u32 dummy; /* padding for 8 byte alignment */
 };

 struct ehca_create_cq_resp {
 	u32 cq_number;
 	u32 token;
 	struct ipzu_queue_resp ipz_queue;
 };

 struct ehca_create_qp_resp {
 	u32 qp_num;
 	u32 token;
 	u32 qp_type;
 	u32 qkey;
 	/* qp_num assigned by ehca: sqp0/1 may have got different numbers */
 	u32 real_qp_num;
 	u32 dummy; /* padding for 8 byte alignment */
 	struct ipzu_queue_resp ipz_squeue;
 	struct ipzu_queue_resp ipz_rqueue;
 };

 struct ehca_alloc_cq_parms {
 	u32 nr_cqe;
 	u32 act_nr_of_entries;
 	u32 act_pages;
 	struct ipz_eq_handle eq_handle;
 };

 struct ehca_alloc_qp_parms {
 	int servicetype;
 	int sigtype;
 	int daqp_ctrl;
 	int max_send_sge;
 	int max_recv_sge;
 	int ud_av_l_key_ctl;

 	u16 act_nr_send_wqes;
 	u16 act_nr_recv_wqes;
 	u8  act_nr_recv_sges;
 	u8  act_nr_send_sges;

 	u32 nr_rq_pages;
 	u32 nr_sq_pages;

 	struct ipz_eq_handle ipz_eq_handle;
 	struct ipz_pd pd;
 };

 int ehca_cq_assign_qp(struct ehca_cq *cq, struct ehca_qp *qp);
 int ehca_cq_unassign_qp(struct ehca_cq *cq, unsigned int qp_num);
 struct ehca_qp* ehca_cq_get_qp(struct ehca_cq *cq, int qp_num);

 #endif
	/*
	* IBM eServer eHCA Infiniband device driver for Linux on POWER
	*
	* Struct definition for eHCA internal structures
	*
	* Authors: Heiko J Schick <schickhj@de.ibm.com>
	* Christoph Raisch <raisch@de.ibm.com>
	*
	* Copyright (c) 2005 IBM Corporation
	*
	* All rights reserved.
	*
	* This source code is distributed under a dual license of GPL v2.0 and OpenIB
	* BSD.
	*
	* OpenIB BSD License
	*
	* 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.
	*
	* 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 __EHCA_CLASSES_H__
	#define __EHCA_CLASSES_H__


	struct ehca_module;
	struct ehca_qp;
	struct ehca_cq;
	struct ehca_eq;
	struct ehca_mr;
	struct ehca_mw;
	struct ehca_pd;
	struct ehca_av;

	#include <linux/wait.h>

	#include <rdma/ib_verbs.h>
	#include <rdma/ib_user_verbs.h>

	#ifdef CONFIG_PPC64
	#include "ehca_classes_pSeries.h"
	#endif
	#include "ipz_pt_fn.h"
	#include "ehca_qes.h"
	#include "ehca_irq.h"

	#define EHCA_EQE_CACHE_SIZE 20

	struct ehca_eqe_cache_entry {
	struct ehca_eqe *eqe;
	struct ehca_cq *cq;
	};

	struct ehca_eq {
	u32 length;
	struct ipz_queue ipz_queue;
	struct ipz_eq_handle ipz_eq_handle;
	struct work_struct work;
	struct h_galpas galpas;
	int is_initialized;
	struct ehca_pfeq pf;
	spinlock_t spinlock;
	struct tasklet_struct interrupt_task;
	u32 ist;
	spinlock_t irq_spinlock;
	struct ehca_eqe_cache_entry eqe_cache[EHCA_EQE_CACHE_SIZE];
	};

	struct ehca_sport {
	struct ib_cq *ibcq_aqp1;
	struct ib_qp *ibqp_aqp1;
	enum ib_rate rate;
	enum ib_port_state port_state;
	};

	struct ehca_shca {
	struct ib_device ib_device;
	struct ibmebus_dev *ibmebus_dev;
	u8 num_ports;
	int hw_level;
	struct list_head shca_list;
	struct ipz_adapter_handle ipz_hca_handle;
	struct ehca_sport sport[2];
	struct ehca_eq eq;
	struct ehca_eq neq;
	struct ehca_mr *maxmr;
	struct ehca_pd *pd;
	struct h_galpas galpas;
	struct mutex modify_mutex;
	};

	struct ehca_pd {
	struct ib_pd ib_pd;
	struct ipz_pd fw_pd;
	u32 ownpid;
	};

	struct ehca_qp {
	struct ib_qp ib_qp;
	u32 qp_type;
	struct ipz_queue ipz_squeue;
	struct ipz_queue ipz_rqueue;
	struct h_galpas galpas;
	u32 qkey;
	u32 real_qp_num;
	u32 token;
	spinlock_t spinlock_s;
	spinlock_t spinlock_r;
	u32 sq_max_inline_data_size;
	struct ipz_qp_handle ipz_qp_handle;
	struct ehca_pfqp pf;
	struct ib_qp_init_attr init_attr;
	struct ehca_cq *send_cq;
	struct ehca_cq *recv_cq;
	unsigned int sqerr_purgeflag;
	struct hlist_node list_entries;
	/* mmap counter for resources mapped into user space */
	u32 mm_count_squeue;
	u32 mm_count_rqueue;
	u32 mm_count_galpa;
	};

	/* must be power of 2 */
	#define QP_HASHTAB_LEN 8

	struct ehca_cq {
	struct ib_cq ib_cq;
	struct ipz_queue ipz_queue;
	struct h_galpas galpas;
	spinlock_t spinlock;
	u32 cq_number;
	u32 token;
	u32 nr_of_entries;
	struct ipz_cq_handle ipz_cq_handle;
	struct ehca_pfcq pf;
	spinlock_t cb_lock;
	struct hlist_head qp_hashtab[QP_HASHTAB_LEN];
	struct list_head entry;
	u32 nr_callbacks; /* #events assigned to cpu by scaling code */
	u32 nr_events; /* #events seen */
	wait_queue_head_t wait_completion;
	spinlock_t task_lock;
	u32 ownpid;
	/* mmap counter for resources mapped into user space */
	u32 mm_count_queue;
	u32 mm_count_galpa;
	};

	enum ehca_mr_flag {
	EHCA_MR_FLAG_FMR = 0x80000000, /* FMR, created with ehca_alloc_fmr */
	EHCA_MR_FLAG_MAXMR = 0x40000000, /* max-MR */
	};

	struct ehca_mr {
	union {
	struct ib_mr ib_mr; /* must always be first in ehca_mr */
	struct ib_fmr ib_fmr; /* must always be first in ehca_mr */
	} ib;
	struct ib_umem *umem;
	spinlock_t mrlock;

	enum ehca_mr_flag flags;
	u32 num_pages; /* number of MR pages */
	u32 num_4k; /* number of 4k "page" portions to form MR */
	int acl; /* ACL (stored here for usage in reregister) */
	u64 start; / virtual start address (stored here for */
	/* usage in reregister) */
	u64 size; /* size (stored here for usage in reregister) */
	u32 fmr_page_size; /* page size for FMR */
	u32 fmr_max_pages; /* max pages for FMR */
	u32 fmr_max_maps; /* max outstanding maps for FMR */
	u32 fmr_map_cnt; /* map counter for FMR */
	/* fw specific data */
	struct ipz_mrmw_handle ipz_mr_handle; /* MR handle for h-calls */
	struct h_galpas galpas;
	/* data for userspace bridge */
	u32 nr_of_pages;
	void *pagearray;
	};

	struct ehca_mw {
	struct ib_mw ib_mw; /* gen2 mw, must always be first in ehca_mw */
	spinlock_t mwlock;

	u8 never_bound; /* indication MW was never bound */
	struct ipz_mrmw_handle ipz_mw_handle; /* MW handle for h-calls */
	struct h_galpas galpas;
	};

	enum ehca_mr_pgi_type {
	EHCA_MR_PGI_PHYS = 1, /* type of ehca_reg_phys_mr,
	* ehca_rereg_phys_mr,
	* ehca_reg_internal_maxmr */
	EHCA_MR_PGI_USER = 2, /* type of ehca_reg_user_mr */
	EHCA_MR_PGI_FMR = 3 /* type of ehca_map_phys_fmr */
	};

	struct ehca_mr_pginfo {
	enum ehca_mr_pgi_type type;
	u64 num_pages;
	u64 page_cnt;
	u64 num_4k; /* number of 4k "page" portions */
	u64 page_4k_cnt; /* counter for 4k "page" portions */
	u64 next_4k; /* next 4k "page" portion in buffer/chunk/listelem */

	/* type EHCA_MR_PGI_PHYS section */
	int num_phys_buf;
	struct ib_phys_buf *phys_buf_array;
	u64 next_buf;

	/* type EHCA_MR_PGI_USER section */
	struct ib_umem *region;
	struct ib_umem_chunk *next_chunk;
	u64 next_nmap;

	/* type EHCA_MR_PGI_FMR section */
	u64 *page_list;
	u64 next_listelem;
	/* next_4k also used within EHCA_MR_PGI_FMR */
	};

	/* output parameters for MR/FMR hipz calls */
	struct ehca_mr_hipzout_parms {
	struct ipz_mrmw_handle handle;
	u32 lkey;
	u32 rkey;
	u64 len;
	u64 vaddr;
	u32 acl;
	};

	/* output parameters for MW hipz calls */
	struct ehca_mw_hipzout_parms {
	struct ipz_mrmw_handle handle;
	u32 rkey;
	};

	struct ehca_av {
	struct ib_ah ib_ah;
	struct ehca_ud_av av;
	};

	struct ehca_ucontext {
	struct ib_ucontext ib_ucontext;
	};

	int ehca_init_pd_cache(void);
	void ehca_cleanup_pd_cache(void);
	int ehca_init_cq_cache(void);
	void ehca_cleanup_cq_cache(void);
	int ehca_init_qp_cache(void);
	void ehca_cleanup_qp_cache(void);
	int ehca_init_av_cache(void);
	void ehca_cleanup_av_cache(void);
	int ehca_init_mrmw_cache(void);
	void ehca_cleanup_mrmw_cache(void);

	extern spinlock_t ehca_qp_idr_lock;
	extern spinlock_t ehca_cq_idr_lock;
	extern spinlock_t hcall_lock;
	extern struct idr ehca_qp_idr;
	extern struct idr ehca_cq_idr;

	extern int ehca_static_rate;
	extern int ehca_port_act_time;
	extern int ehca_use_hp_mr;
	extern int ehca_scaling_code;

	struct ipzu_queue_resp {
	u32 qe_size; /* queue entry size */
	u32 act_nr_of_sg;
	u32 queue_length; /* queue length allocated in bytes */
	u32 pagesize;
	u32 toggle_state;
	u32 dummy; /* padding for 8 byte alignment */
	};

	struct ehca_create_cq_resp {
	u32 cq_number;
	u32 token;
	struct ipzu_queue_resp ipz_queue;
	};

	struct ehca_create_qp_resp {
	u32 qp_num;
	u32 token;
	u32 qp_type;
	u32 qkey;
	/* qp_num assigned by ehca: sqp0/1 may have got different numbers */
	u32 real_qp_num;
	u32 dummy; /* padding for 8 byte alignment */
	struct ipzu_queue_resp ipz_squeue;
	struct ipzu_queue_resp ipz_rqueue;
	};

	struct ehca_alloc_cq_parms {
	u32 nr_cqe;
	u32 act_nr_of_entries;
	u32 act_pages;
	struct ipz_eq_handle eq_handle;
	};

	struct ehca_alloc_qp_parms {
	int servicetype;
	int sigtype;
	int daqp_ctrl;
	int max_send_sge;
	int max_recv_sge;
	int ud_av_l_key_ctl;

	u16 act_nr_send_wqes;
	u16 act_nr_recv_wqes;
	u8 act_nr_recv_sges;
	u8 act_nr_send_sges;

	u32 nr_rq_pages;
	u32 nr_sq_pages;

	struct ipz_eq_handle ipz_eq_handle;
	struct ipz_pd pd;
	};

	int ehca_cq_assign_qp(struct ehca_cq cq, struct ehca_qp qp);
	int ehca_cq_unassign_qp(struct ehca_cq *cq, unsigned int qp_num);
	struct ehca_qp* ehca_cq_get_qp(struct ehca_cq *cq, int qp_num);

	#endif