LXR linux/include/uapi/rdma/cxgb4-abi.h

   1/*
   2 * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved.
   3 *
   4 * This software is available to you under a choice of one of two
   5 * licenses.  You may choose to be licensed under the terms of the GNU
   6 * General Public License (GPL) Version 2, available from the file
   7 * COPYING in the main directory of this source tree, or the
   8 * OpenIB.org BSD license below:
   9 *
  10 *     Redistribution and use in source and binary forms, with or
  11 *     without modification, are permitted provided that the following
  12 *     conditions are met:
  13 *
  14 *      - Redistributions of source code must retain the above
  15 *        copyright notice, this list of conditions and the following
  16 *        disclaimer.
  17 *
  18 *      - Redistributions in binary form must reproduce the above
  19 *        copyright notice, this list of conditions and the following
  20 *        disclaimer in the documentation and/or other materials
  21 *        provided with the distribution.
  22 *
  23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30 * SOFTWARE.
  31 */
  32#ifndef CXGB4_ABI_USER_H
  33#define CXGB4_ABI_USER_H
  34
  35#include <linux/types.h>
  36
  37#define C4IW_UVERBS_ABI_VERSION 3
  38
  39/*
  40 * Make sure that all structs defined in this file remain laid out so
  41 * that they pack the same way on 32-bit and 64-bit architectures (to
  42 * avoid incompatibility between 32-bit userspace and 64-bit kernels).
  43 * In particular do not use pointer types -- pass pointers in __aligned_u64
  44 * instead.
  45 */
  46
  47enum {
  48        C4IW_64B_CQE = (1 << 0)
  49};
  50
  51struct c4iw_create_cq {
  52        __u32 flags;
  53        __u32 reserved;
  54};
  55
  56struct c4iw_create_cq_resp {
  57        __aligned_u64 key;
  58        __aligned_u64 gts_key;
  59        __aligned_u64 memsize;
  60        __u32 cqid;
  61        __u32 size;
  62        __u32 qid_mask;
  63        __u32 flags;
  64};
  65
  66enum {
  67        C4IW_QPF_ONCHIP = (1 << 0),
  68        C4IW_QPF_WRITE_W_IMM = (1 << 1)
  69};
  70
  71struct c4iw_create_qp_resp {
  72        __aligned_u64 ma_sync_key;
  73        __aligned_u64 sq_key;
  74        __aligned_u64 rq_key;
  75        __aligned_u64 sq_db_gts_key;
  76        __aligned_u64 rq_db_gts_key;
  77        __aligned_u64 sq_memsize;
  78        __aligned_u64 rq_memsize;
  79        __u32 sqid;
  80        __u32 rqid;
  81        __u32 sq_size;
  82        __u32 rq_size;
  83        __u32 qid_mask;
  84        __u32 flags;
  85};
  86
  87struct c4iw_create_srq_resp {
  88        __aligned_u64 srq_key;
  89        __aligned_u64 srq_db_gts_key;
  90        __aligned_u64 srq_memsize;
  91        __u32 srqid;
  92        __u32 srq_size;
  93        __u32 rqt_abs_idx;
  94        __u32 qid_mask;
  95        __u32 flags;
  96        __u32 reserved; /* explicit padding */
  97};
  98
  99enum {
 100        /* HW supports SRQ_LIMIT_REACHED event */
 101        T4_SRQ_LIMIT_SUPPORT = 1 << 0,
 102};
 103
 104struct c4iw_alloc_ucontext_resp {
 105        __aligned_u64 status_page_key;
 106        __u32 status_page_size;
 107        __u32 reserved; /* explicit padding (optional for i386) */
 108};
 109
 110struct c4iw_alloc_pd_resp {
 111        __u32 pdid;
 112};
 113
 114#endif /* CXGB4_ABI_USER_H */
 115