mthca_wqe.h

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    1 /*
    2  * Copyright (c) 2005 Cisco Systems. 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 
   33 #ifndef MTHCA_WQE_H
   34 #define MTHCA_WQE_H
   35 
   36 #include <linux/types.h>
   37 
   38 enum {
   39         MTHCA_NEXT_DBD          = 1 << 7,
   40         MTHCA_NEXT_FENCE        = 1 << 6,
   41         MTHCA_NEXT_CQ_UPDATE    = 1 << 3,
   42         MTHCA_NEXT_EVENT_GEN    = 1 << 2,
   43         MTHCA_NEXT_SOLICIT      = 1 << 1,
   44         MTHCA_NEXT_IP_CSUM      = 1 << 4,
   45         MTHCA_NEXT_TCP_UDP_CSUM = 1 << 5,
   46 
   47         MTHCA_MLX_VL15          = 1 << 17,
   48         MTHCA_MLX_SLR           = 1 << 16
   49 };
   50 
   51 enum {
   52         MTHCA_INVAL_LKEY                        = 0x100,
   53         MTHCA_TAVOR_MAX_WQES_PER_RECV_DB        = 256,
   54         MTHCA_ARBEL_MAX_WQES_PER_SEND_DB        = 255
   55 };
   56 
   57 struct mthca_next_seg {
   58         __be32 nda_op;          /* [31:6] next WQE [4:0] next opcode */
   59         __be32 ee_nds;          /* [31:8] next EE  [7] DBD [6] F [5:0] next WQE size */
   60         __be32 flags;           /* [3] CQ [2] Event [1] Solicit */
   61         __be32 imm;             /* immediate data */
   62 };
   63 
   64 struct mthca_tavor_ud_seg {
   65         u32    reserved1;
   66         __be32 lkey;
   67         __be64 av_addr;
   68         u32    reserved2[4];
   69         __be32 dqpn;
   70         __be32 qkey;
   71         u32    reserved3[2];
   72 };
   73 
   74 struct mthca_arbel_ud_seg {
   75         __be32 av[8];
   76         __be32 dqpn;
   77         __be32 qkey;
   78         u32    reserved[2];
   79 };
   80 
   81 struct mthca_bind_seg {
   82         __be32 flags;           /* [31] Atomic [30] rem write [29] rem read */
   83         u32    reserved;
   84         __be32 new_rkey;
   85         __be32 lkey;
   86         __be64 addr;
   87         __be64 length;
   88 };
   89 
   90 struct mthca_raddr_seg {
   91         __be64 raddr;
   92         __be32 rkey;
   93         u32    reserved;
   94 };
   95 
   96 struct mthca_atomic_seg {
   97         __be64 swap_add;
   98         __be64 compare;
   99 };
  100 
  101 struct mthca_data_seg {
  102         __be32 byte_count;
  103         __be32 lkey;
  104         __be64 addr;
  105 };
  106 
  107 struct mthca_mlx_seg {
  108         __be32 nda_op;
  109         __be32 nds;
  110         __be32 flags;           /* [17] VL15 [16] SLR [14:12] static rate
  111                                    [11:8] SL [3] C [2] E */
  112         __be16 rlid;
  113         __be16 vcrc;
  114 };
  115 
  116 static __always_inline void mthca_set_data_seg(struct mthca_data_seg *dseg,
  117                                                struct ib_sge *sg)
  118 {
  119         dseg->byte_count = cpu_to_be32(sg->length);
  120         dseg->lkey       = cpu_to_be32(sg->lkey);
  121         dseg->addr       = cpu_to_be64(sg->addr);
  122 }
  123 
  124 static __always_inline void mthca_set_data_seg_inval(struct mthca_data_seg *dseg)
  125 {
  126         dseg->byte_count = 0;
  127         dseg->lkey       = cpu_to_be32(MTHCA_INVAL_LKEY);
  128         dseg->addr       = 0;
  129 }
  130 
  131 #endif /* MTHCA_WQE_H */

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FreeBSD/Linux Kernel Cross Reference sys/dev/mthca/mthca_wqe.h

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sys/dev/mthca/mthca_wqe.h