/* * IBM eServer eHCA Infiniband device driver for Linux on POWER * * Hardware request structures * * Authors: Waleri Fomin * Reinhard Ernst * Christoph Raisch * * 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; }; #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) /* * 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; }; #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) #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_*/