--- /dev/null
+/*
+ * 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;
+};
+
+#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_*/
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