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kernel/linux-rt-4.4.41/drivers/infiniband/hw/nes/nes_user.h 3.29 KB
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  /*
   * Copyright (c) 2006 - 2011 Intel Corporation.  All rights reserved.
   * Copyright (c) 2005 Topspin Communications.  All rights reserved.
   * Copyright (c) 2005 Cisco Systems.  All rights reserved.
   * Copyright (c) 2005 Open Grid Computing, 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 NES_USER_H
  #define NES_USER_H
  
  #include <linux/types.h>
  
  #define NES_ABI_USERSPACE_VER 2
  #define NES_ABI_KERNEL_VER    2
  
  /*
   * Make sure that all structs defined in this file remain laid out so
   * that they pack the same way on 32-bit and 64-bit architectures (to
   * avoid incompatibility between 32-bit userspace and 64-bit kernels).
   * In particular do not use pointer types -- pass pointers in __u64
   * instead.
   */
  
  struct nes_alloc_ucontext_req {
  	__u32 reserved32;
  	__u8  userspace_ver;
  	__u8  reserved8[3];
  };
  
  struct nes_alloc_ucontext_resp {
  	__u32 max_pds; /* maximum pds allowed for this user process */
  	__u32 max_qps; /* maximum qps allowed for this user process */
  	__u32 wq_size; /* size of the WQs (sq+rq) allocated to the mmaped area */
  	__u8  virtwq;  /* flag to indicate if virtual WQ are to be used or not */
  	__u8  kernel_ver;
  	__u8  reserved[2];
  };
  
  struct nes_alloc_pd_resp {
  	__u32 pd_id;
  	__u32 mmap_db_index;
  };
  
  struct nes_create_cq_req {
  	__u64 user_cq_buffer;
  	__u32 mcrqf;
  	__u8 reserved[4];
  };
  
  struct nes_create_qp_req {
  	__u64 user_wqe_buffers;
  	__u64 user_qp_buffer;
  };
  
  enum iwnes_memreg_type {
  	IWNES_MEMREG_TYPE_MEM = 0x0000,
  	IWNES_MEMREG_TYPE_QP = 0x0001,
  	IWNES_MEMREG_TYPE_CQ = 0x0002,
  	IWNES_MEMREG_TYPE_MW = 0x0003,
  	IWNES_MEMREG_TYPE_FMR = 0x0004,
  	IWNES_MEMREG_TYPE_FMEM = 0x0005,
  };
  
  struct nes_mem_reg_req {
  	__u32 reg_type;	/* indicates if id is memory, QP or CQ */
  	__u32 reserved;
  };
  
  struct nes_create_cq_resp {
  	__u32 cq_id;
  	__u32 cq_size;
  	__u32 mmap_db_index;
  	__u32 reserved;
  };
  
  struct nes_create_qp_resp {
  	__u32 qp_id;
  	__u32 actual_sq_size;
  	__u32 actual_rq_size;
  	__u32 mmap_sq_db_index;
  	__u32 mmap_rq_db_index;
  	__u32 nes_drv_opt;
  };
  
  #endif				/* NES_USER_H */