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Viewing changes to drivers/infiniband/hw/ehca/ehca_qes.h

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

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drivers/infiniband/hw/ehca/ehca_qes.h
 
1
/*
 
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 *  IBM eServer eHCA Infiniband device driver for Linux on POWER
 
3
 *
 
4
 *  Hardware request structures
 
5
 *
 
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 *  Authors: Waleri Fomin <fomin@de.ibm.com>
 
7
 *           Reinhard Ernst <rernst@de.ibm.com>
 
8
 *           Christoph Raisch <raisch@de.ibm.com>
 
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 *
 
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 *  Copyright (c) 2005 IBM Corporation
 
11
 *
 
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 *  All rights reserved.
 
13
 *
 
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 *  This source code is distributed under a dual license of GPL v2.0 and OpenIB
 
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 *  BSD.
 
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 *
 
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 * OpenIB BSD License
 
18
 *
 
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 * Redistribution and use in source and binary forms, with or without
 
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 * modification, are permitted provided that the following conditions are met:
 
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 *
 
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 * Redistributions of source code must retain the above copyright notice, this
 
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 * list of conditions and the following disclaimer.
 
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 *
 
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 * Redistributions in binary form must reproduce the above copyright notice,
 
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 * this list of conditions and the following disclaimer in the documentation
 
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 * and/or other materials
 
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 * provided with the distribution.
 
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 *
 
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 
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 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 
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 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 
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 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 
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 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 
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 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 
37
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
 
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 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 
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 * POSSIBILITY OF SUCH DAMAGE.
 
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 */
 
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#ifndef _EHCA_QES_H_
 
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#define _EHCA_QES_H_
 
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#include "ehca_tools.h"
 
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/* virtual scatter gather entry to specify remote addresses with length */
 
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struct ehca_vsgentry {
 
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        u64 vaddr;
 
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        u32 lkey;
 
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        u32 length;
 
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};
 
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#define GRH_FLAG_MASK        EHCA_BMASK_IBM( 7,  7)
 
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#define GRH_IPVERSION_MASK   EHCA_BMASK_IBM( 0,  3)
 
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#define GRH_TCLASS_MASK      EHCA_BMASK_IBM( 4, 12)
 
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#define GRH_FLOWLABEL_MASK   EHCA_BMASK_IBM(13, 31)
 
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#define GRH_PAYLEN_MASK      EHCA_BMASK_IBM(32, 47)
 
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#define GRH_NEXTHEADER_MASK  EHCA_BMASK_IBM(48, 55)
 
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#define GRH_HOPLIMIT_MASK    EHCA_BMASK_IBM(56, 63)
 
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/*
 
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 * Unreliable Datagram Address Vector Format
 
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 * see IBTA Vol1 chapter 8.3 Global Routing Header
 
67
 */
 
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struct ehca_ud_av {
 
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        u8 sl;
 
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        u8 lnh;
 
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        u16 dlid;
 
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        u8 reserved1;
 
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        u8 reserved2;
 
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        u8 reserved3;
 
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        u8 slid_path_bits;
 
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        u8 reserved4;
 
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        u8 ipd;
 
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        u8 reserved5;
 
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        u8 pmtu;
 
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        u32 reserved6;
 
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        u64 reserved7;
 
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        union {
 
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                struct {
 
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                        u64 word_0; /* always set to 6  */
 
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                        /*should be 0x1B for IB transport */
 
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                        u64 word_1;
 
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                        u64 word_2;
 
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                        u64 word_3;
 
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                        u64 word_4;
 
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                } grh;
 
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                struct {
 
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                        u32 wd_0;
 
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                        u32 wd_1;
 
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                        /* DWord_1 --> SGID */
 
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                        u32 sgid_wd3;
 
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                        u32 sgid_wd2;
 
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                        u32 sgid_wd1;
 
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                        u32 sgid_wd0;
 
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                        /* DWord_3 --> DGID */
 
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                        u32 dgid_wd3;
 
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                        u32 dgid_wd2;
 
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                        u32 dgid_wd1;
 
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                        u32 dgid_wd0;
 
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                } grh_l;
 
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        };
 
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};
 
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/* maximum number of sg entries allowed in a WQE */
 
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#define MAX_WQE_SG_ENTRIES 252
 
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#define WQE_OPTYPE_SEND             0x80
 
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#define WQE_OPTYPE_RDMAREAD         0x40
 
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#define WQE_OPTYPE_RDMAWRITE        0x20
 
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#define WQE_OPTYPE_CMPSWAP          0x10
 
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#define WQE_OPTYPE_FETCHADD         0x08
 
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#define WQE_OPTYPE_BIND             0x04
 
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#define WQE_WRFLAG_REQ_SIGNAL_COM   0x80
 
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#define WQE_WRFLAG_FENCE            0x40
 
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#define WQE_WRFLAG_IMM_DATA_PRESENT 0x20
 
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#define WQE_WRFLAG_SOLIC_EVENT      0x10
 
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#define WQEF_CACHE_HINT             0x80
 
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#define WQEF_CACHE_HINT_RD_WR       0x40
 
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#define WQEF_TIMED_WQE              0x20
 
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#define WQEF_PURGE                  0x08
 
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#define WQEF_HIGH_NIBBLE            0xF0
 
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#define MW_BIND_ACCESSCTRL_R_WRITE   0x40
 
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#define MW_BIND_ACCESSCTRL_R_READ    0x20
 
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#define MW_BIND_ACCESSCTRL_R_ATOMIC  0x10
 
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137
struct ehca_wqe {
 
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        u64 work_request_id;
 
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        u8 optype;
 
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        u8 wr_flag;
 
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        u16 pkeyi;
 
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        u8 wqef;
 
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        u8 nr_of_data_seg;
 
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        u16 wqe_provided_slid;
 
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        u32 destination_qp_number;
 
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        u32 resync_psn_sqp;
 
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        u32 local_ee_context_qkey;
 
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        u32 immediate_data;
 
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        union {
 
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                struct {
 
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                        u64 remote_virtual_address;
 
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                        u32 rkey;
 
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                        u32 reserved;
 
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                        u64 atomic_1st_op_dma_len;
 
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                        u64 atomic_2nd_op;
 
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                        struct ehca_vsgentry sg_list[MAX_WQE_SG_ENTRIES];
 
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                } nud;
 
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                struct {
 
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                        u64 ehca_ud_av_ptr;
 
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                        u64 reserved1;
 
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                        u64 reserved2;
 
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                        u64 reserved3;
 
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                        struct ehca_vsgentry sg_list[MAX_WQE_SG_ENTRIES];
 
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                } ud_avp;
 
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                struct {
 
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                        struct ehca_ud_av ud_av;
 
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                        struct ehca_vsgentry sg_list[MAX_WQE_SG_ENTRIES -
 
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                                                     2];
 
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                } ud_av;
 
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                struct {
 
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                        u64 reserved0;
 
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                        u64 reserved1;
 
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                        u64 reserved2;
 
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                        u64 reserved3;
 
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                        struct ehca_vsgentry sg_list[MAX_WQE_SG_ENTRIES];
 
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                } all_rcv;
 
178
 
 
179
                struct {
 
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                        u64 reserved;
 
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                        u32 rkey;
 
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                        u32 old_rkey;
 
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                        u64 reserved1;
 
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                        u64 reserved2;
 
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                        u64 virtual_address;
 
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                        u32 reserved3;
 
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                        u32 length;
 
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                        u32 reserved4;
 
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                        u16 reserved5;
 
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                        u8 reserved6;
 
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                        u8 lr_ctl;
 
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                        u32 lkey;
 
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                        u32 reserved7;
 
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                        u64 reserved8;
 
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                        u64 reserved9;
 
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                        u64 reserved10;
 
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                        u64 reserved11;
 
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                } bind;
 
199
                struct {
 
200
                        u64 reserved12;
 
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                        u64 reserved13;
 
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                        u32 size;
 
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                        u32 start;
 
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                } inline_data;
 
205
        } u;
 
206
 
 
207
};
 
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#define WC_SEND_RECEIVE EHCA_BMASK_IBM(0, 0)
 
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#define WC_IMM_DATA     EHCA_BMASK_IBM(1, 1)
 
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#define WC_GRH_PRESENT  EHCA_BMASK_IBM(2, 2)
 
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#define WC_SE_BIT       EHCA_BMASK_IBM(3, 3)
 
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#define WC_STATUS_ERROR_BIT 0x80000000
 
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#define WC_STATUS_REMOTE_ERROR_FLAGS 0x0000F800
 
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#define WC_STATUS_PURGE_BIT 0x10
 
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#define WC_SEND_RECEIVE_BIT 0x80
 
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218
struct ehca_cqe {
 
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        u64 work_request_id;
 
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        u8 optype;
 
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        u8 w_completion_flags;
 
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        u16 reserved1;
 
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        u32 nr_bytes_transferred;
 
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        u32 immediate_data;
 
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        u32 local_qp_number;
 
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        u8 freed_resource_count;
 
227
        u8 service_level;
 
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        u16 wqe_count;
 
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        u32 qp_token;
 
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        u32 qkey_ee_token;
 
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        u32 remote_qp_number;
 
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        u16 dlid;
 
233
        u16 rlid;
 
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        u16 reserved2;
 
235
        u16 pkey_index;
 
236
        u32 cqe_timestamp;
 
237
        u32 wqe_timestamp;
 
238
        u8 wqe_timestamp_valid;
 
239
        u8 reserved3;
 
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        u8 reserved4;
 
241
        u8 cqe_flags;
 
242
        u32 status;
 
243
};
 
244
 
 
245
struct ehca_eqe {
 
246
        u64 entry;
 
247
};
 
248
 
 
249
struct ehca_mrte {
 
250
        u64 starting_va;
 
251
        u64 length; /* length of memory region in bytes*/
 
252
        u32 pd;
 
253
        u8 key_instance;
 
254
        u8 pagesize;
 
255
        u8 mr_control;
 
256
        u8 local_remote_access_ctrl;
 
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        u8 reserved[0x20 - 0x18];
 
258
        u64 at_pointer[4];
 
259
};
 
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#endif /*_EHCA_QES_H_*/