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/*
* IBM eServer eHCA Infiniband device driver for Linux on POWER
*
* Hardware request structures
*
* Authors : Waleri Fomin < fomin @ de . ibm . com >
* Reinhard Ernst < rernst @ 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_QES_H_
# define _EHCA_QES_H_
# include "ehca_tools.h"
/* virtual scatter gather entry to specify remote adresses with length */
struct ehca_vsgentry {
u64 vaddr ;
u32 lkey ;
u32 length ;
} ;
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# define GRH_FLAG_MASK EHCA_BMASK_IBM( 7, 7)
# define GRH_IPVERSION_MASK EHCA_BMASK_IBM( 0, 3)
# define GRH_TCLASS_MASK EHCA_BMASK_IBM( 4, 12)
# define GRH_FLOWLABEL_MASK EHCA_BMASK_IBM(13, 31)
# define GRH_PAYLEN_MASK EHCA_BMASK_IBM(32, 47)
# define GRH_NEXTHEADER_MASK EHCA_BMASK_IBM(48, 55)
# define GRH_HOPLIMIT_MASK EHCA_BMASK_IBM(56, 63)
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/*
* Unreliable Datagram Address Vector Format
* see IBTA Vol1 chapter 8.3 Global Routing Header
*/
struct ehca_ud_av {
u8 sl ;
u8 lnh ;
u16 dlid ;
u8 reserved1 ;
u8 reserved2 ;
u8 reserved3 ;
u8 slid_path_bits ;
u8 reserved4 ;
u8 ipd ;
u8 reserved5 ;
u8 pmtu ;
u32 reserved6 ;
u64 reserved7 ;
union {
struct {
u64 word_0 ; /* always set to 6 */
/*should be 0x1B for IB transport */
u64 word_1 ;
u64 word_2 ;
u64 word_3 ;
u64 word_4 ;
} grh ;
struct {
u32 wd_0 ;
u32 wd_1 ;
/* DWord_1 --> SGID */
u32 sgid_wd3 ;
u32 sgid_wd2 ;
u32 sgid_wd1 ;
u32 sgid_wd0 ;
/* DWord_3 --> DGID */
u32 dgid_wd3 ;
u32 dgid_wd2 ;
u32 dgid_wd1 ;
u32 dgid_wd0 ;
} grh_l ;
} ;
} ;
/* maximum number of sg entries allowed in a WQE */
# define MAX_WQE_SG_ENTRIES 252
# define WQE_OPTYPE_SEND 0x80
# define WQE_OPTYPE_RDMAREAD 0x40
# define WQE_OPTYPE_RDMAWRITE 0x20
# define WQE_OPTYPE_CMPSWAP 0x10
# define WQE_OPTYPE_FETCHADD 0x08
# define WQE_OPTYPE_BIND 0x04
# define WQE_WRFLAG_REQ_SIGNAL_COM 0x80
# define WQE_WRFLAG_FENCE 0x40
# define WQE_WRFLAG_IMM_DATA_PRESENT 0x20
# define WQE_WRFLAG_SOLIC_EVENT 0x10
# define WQEF_CACHE_HINT 0x80
# define WQEF_CACHE_HINT_RD_WR 0x40
# define WQEF_TIMED_WQE 0x20
# define WQEF_PURGE 0x08
# define WQEF_HIGH_NIBBLE 0xF0
# define MW_BIND_ACCESSCTRL_R_WRITE 0x40
# define MW_BIND_ACCESSCTRL_R_READ 0x20
# define MW_BIND_ACCESSCTRL_R_ATOMIC 0x10
struct ehca_wqe {
u64 work_request_id ;
u8 optype ;
u8 wr_flag ;
u16 pkeyi ;
u8 wqef ;
u8 nr_of_data_seg ;
u16 wqe_provided_slid ;
u32 destination_qp_number ;
u32 resync_psn_sqp ;
u32 local_ee_context_qkey ;
u32 immediate_data ;
union {
struct {
u64 remote_virtual_adress ;
u32 rkey ;
u32 reserved ;
u64 atomic_1st_op_dma_len ;
u64 atomic_2nd_op ;
struct ehca_vsgentry sg_list [ MAX_WQE_SG_ENTRIES ] ;
} nud ;
struct {
u64 ehca_ud_av_ptr ;
u64 reserved1 ;
u64 reserved2 ;
u64 reserved3 ;
struct ehca_vsgentry sg_list [ MAX_WQE_SG_ENTRIES ] ;
} ud_avp ;
struct {
struct ehca_ud_av ud_av ;
struct ehca_vsgentry sg_list [ MAX_WQE_SG_ENTRIES -
2 ] ;
} ud_av ;
struct {
u64 reserved0 ;
u64 reserved1 ;
u64 reserved2 ;
u64 reserved3 ;
struct ehca_vsgentry sg_list [ MAX_WQE_SG_ENTRIES ] ;
} all_rcv ;
struct {
u64 reserved ;
u32 rkey ;
u32 old_rkey ;
u64 reserved1 ;
u64 reserved2 ;
u64 virtual_address ;
u32 reserved3 ;
u32 length ;
u32 reserved4 ;
u16 reserved5 ;
u8 reserved6 ;
u8 lr_ctl ;
u32 lkey ;
u32 reserved7 ;
u64 reserved8 ;
u64 reserved9 ;
u64 reserved10 ;
u64 reserved11 ;
} bind ;
struct {
u64 reserved12 ;
u64 reserved13 ;
u32 size ;
u32 start ;
} inline_data ;
} u ;
} ;
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# define WC_SEND_RECEIVE EHCA_BMASK_IBM(0, 0)
# define WC_IMM_DATA EHCA_BMASK_IBM(1, 1)
# define WC_GRH_PRESENT EHCA_BMASK_IBM(2, 2)
# define WC_SE_BIT EHCA_BMASK_IBM(3, 3)
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# define WC_STATUS_ERROR_BIT 0x80000000
# define WC_STATUS_REMOTE_ERROR_FLAGS 0x0000F800
# define WC_STATUS_PURGE_BIT 0x10
struct ehca_cqe {
u64 work_request_id ;
u8 optype ;
u8 w_completion_flags ;
u16 reserved1 ;
u32 nr_bytes_transferred ;
u32 immediate_data ;
u32 local_qp_number ;
u8 freed_resource_count ;
u8 service_level ;
u16 wqe_count ;
u32 qp_token ;
u32 qkey_ee_token ;
u32 remote_qp_number ;
u16 dlid ;
u16 rlid ;
u16 reserved2 ;
u16 pkey_index ;
u32 cqe_timestamp ;
u32 wqe_timestamp ;
u8 wqe_timestamp_valid ;
u8 reserved3 ;
u8 reserved4 ;
u8 cqe_flags ;
u32 status ;
} ;
struct ehca_eqe {
u64 entry ;
} ;
struct ehca_mrte {
u64 starting_va ;
u64 length ; /* length of memory region in bytes*/
u32 pd ;
u8 key_instance ;
u8 pagesize ;
u8 mr_control ;
u8 local_remote_access_ctrl ;
u8 reserved [ 0x20 - 0x18 ] ;
u64 at_pointer [ 4 ] ;
} ;
# endif /*_EHCA_QES_H_*/
