299 lines
7.6 KiB
C
299 lines
7.6 KiB
C
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
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/*
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* Copyright (c) 2012-2016 VMware, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of EITHER the GNU General Public License
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* version 2 as published by the Free Software Foundation or the BSD
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* 2-Clause License. This program is distributed in the hope that it
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* will be useful, but WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED
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* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License version 2 for more details at
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program available in the file COPYING in the main
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* directory of this source tree.
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*
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* The BSD 2-Clause License
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation 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
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* 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
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __VMW_PVRDMA_ABI_H__
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#define __VMW_PVRDMA_ABI_H__
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#include <linux/types.h>
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#define PVRDMA_UVERBS_ABI_VERSION 3 /* ABI Version. */
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#define PVRDMA_UAR_HANDLE_MASK 0x00FFFFFF /* Bottom 24 bits. */
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#define PVRDMA_UAR_QP_OFFSET 0 /* QP doorbell. */
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#define PVRDMA_UAR_QP_SEND (1 << 30) /* Send bit. */
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#define PVRDMA_UAR_QP_RECV (1 << 31) /* Recv bit. */
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#define PVRDMA_UAR_CQ_OFFSET 4 /* CQ doorbell. */
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#define PVRDMA_UAR_CQ_ARM_SOL (1 << 29) /* Arm solicited bit. */
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#define PVRDMA_UAR_CQ_ARM (1 << 30) /* Arm bit. */
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#define PVRDMA_UAR_CQ_POLL (1 << 31) /* Poll bit. */
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#define PVRDMA_UAR_SRQ_OFFSET 8 /* SRQ doorbell. */
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#define PVRDMA_UAR_SRQ_RECV (1 << 30) /* Recv bit. */
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enum pvrdma_wr_opcode {
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PVRDMA_WR_RDMA_WRITE,
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PVRDMA_WR_RDMA_WRITE_WITH_IMM,
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PVRDMA_WR_SEND,
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PVRDMA_WR_SEND_WITH_IMM,
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PVRDMA_WR_RDMA_READ,
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PVRDMA_WR_ATOMIC_CMP_AND_SWP,
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PVRDMA_WR_ATOMIC_FETCH_AND_ADD,
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PVRDMA_WR_LSO,
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PVRDMA_WR_SEND_WITH_INV,
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PVRDMA_WR_RDMA_READ_WITH_INV,
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PVRDMA_WR_LOCAL_INV,
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PVRDMA_WR_FAST_REG_MR,
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PVRDMA_WR_MASKED_ATOMIC_CMP_AND_SWP,
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PVRDMA_WR_MASKED_ATOMIC_FETCH_AND_ADD,
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PVRDMA_WR_BIND_MW,
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PVRDMA_WR_REG_SIG_MR,
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PVRDMA_WR_ERROR,
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};
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enum pvrdma_wc_status {
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PVRDMA_WC_SUCCESS,
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PVRDMA_WC_LOC_LEN_ERR,
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PVRDMA_WC_LOC_QP_OP_ERR,
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PVRDMA_WC_LOC_EEC_OP_ERR,
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PVRDMA_WC_LOC_PROT_ERR,
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PVRDMA_WC_WR_FLUSH_ERR,
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PVRDMA_WC_MW_BIND_ERR,
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PVRDMA_WC_BAD_RESP_ERR,
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PVRDMA_WC_LOC_ACCESS_ERR,
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PVRDMA_WC_REM_INV_REQ_ERR,
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PVRDMA_WC_REM_ACCESS_ERR,
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PVRDMA_WC_REM_OP_ERR,
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PVRDMA_WC_RETRY_EXC_ERR,
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PVRDMA_WC_RNR_RETRY_EXC_ERR,
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PVRDMA_WC_LOC_RDD_VIOL_ERR,
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PVRDMA_WC_REM_INV_RD_REQ_ERR,
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PVRDMA_WC_REM_ABORT_ERR,
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PVRDMA_WC_INV_EECN_ERR,
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PVRDMA_WC_INV_EEC_STATE_ERR,
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PVRDMA_WC_FATAL_ERR,
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PVRDMA_WC_RESP_TIMEOUT_ERR,
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PVRDMA_WC_GENERAL_ERR,
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};
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enum pvrdma_wc_opcode {
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PVRDMA_WC_SEND,
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PVRDMA_WC_RDMA_WRITE,
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PVRDMA_WC_RDMA_READ,
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PVRDMA_WC_COMP_SWAP,
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PVRDMA_WC_FETCH_ADD,
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PVRDMA_WC_BIND_MW,
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PVRDMA_WC_LSO,
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PVRDMA_WC_LOCAL_INV,
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PVRDMA_WC_FAST_REG_MR,
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PVRDMA_WC_MASKED_COMP_SWAP,
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PVRDMA_WC_MASKED_FETCH_ADD,
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PVRDMA_WC_RECV = 1 << 7,
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PVRDMA_WC_RECV_RDMA_WITH_IMM,
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};
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enum pvrdma_wc_flags {
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PVRDMA_WC_GRH = 1 << 0,
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PVRDMA_WC_WITH_IMM = 1 << 1,
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PVRDMA_WC_WITH_INVALIDATE = 1 << 2,
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PVRDMA_WC_IP_CSUM_OK = 1 << 3,
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PVRDMA_WC_WITH_SMAC = 1 << 4,
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PVRDMA_WC_WITH_VLAN = 1 << 5,
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PVRDMA_WC_WITH_NETWORK_HDR_TYPE = 1 << 6,
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PVRDMA_WC_FLAGS_MAX = PVRDMA_WC_WITH_NETWORK_HDR_TYPE,
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};
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struct pvrdma_alloc_ucontext_resp {
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__u32 qp_tab_size;
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__u32 reserved;
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};
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struct pvrdma_alloc_pd_resp {
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__u32 pdn;
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__u32 reserved;
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};
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struct pvrdma_create_cq {
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__aligned_u64 buf_addr;
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__u32 buf_size;
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__u32 reserved;
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};
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struct pvrdma_create_cq_resp {
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__u32 cqn;
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__u32 reserved;
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};
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struct pvrdma_resize_cq {
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__aligned_u64 buf_addr;
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__u32 buf_size;
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__u32 reserved;
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};
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struct pvrdma_create_srq {
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__aligned_u64 buf_addr;
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__u32 buf_size;
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__u32 reserved;
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};
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struct pvrdma_create_srq_resp {
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__u32 srqn;
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__u32 reserved;
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};
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struct pvrdma_create_qp {
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__aligned_u64 rbuf_addr;
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__aligned_u64 sbuf_addr;
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__u32 rbuf_size;
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__u32 sbuf_size;
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__aligned_u64 qp_addr;
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};
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/* PVRDMA masked atomic compare and swap */
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struct pvrdma_ex_cmp_swap {
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__aligned_u64 swap_val;
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__aligned_u64 compare_val;
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__aligned_u64 swap_mask;
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__aligned_u64 compare_mask;
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};
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/* PVRDMA masked atomic fetch and add */
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struct pvrdma_ex_fetch_add {
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__aligned_u64 add_val;
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__aligned_u64 field_boundary;
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};
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/* PVRDMA address vector. */
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struct pvrdma_av {
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__u32 port_pd;
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__u32 sl_tclass_flowlabel;
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__u8 dgid[16];
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__u8 src_path_bits;
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__u8 gid_index;
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__u8 stat_rate;
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__u8 hop_limit;
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__u8 dmac[6];
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__u8 reserved[6];
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};
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/* PVRDMA scatter/gather entry */
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struct pvrdma_sge {
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__aligned_u64 addr;
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__u32 length;
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__u32 lkey;
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};
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/* PVRDMA receive queue work request */
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struct pvrdma_rq_wqe_hdr {
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__aligned_u64 wr_id; /* wr id */
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__u32 num_sge; /* size of s/g array */
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__u32 total_len; /* reserved */
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};
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/* Use pvrdma_sge (ib_sge) for receive queue s/g array elements. */
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/* PVRDMA send queue work request */
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struct pvrdma_sq_wqe_hdr {
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__aligned_u64 wr_id; /* wr id */
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__u32 num_sge; /* size of s/g array */
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__u32 total_len; /* reserved */
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__u32 opcode; /* operation type */
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__u32 send_flags; /* wr flags */
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union {
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__be32 imm_data;
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__u32 invalidate_rkey;
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} ex;
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__u32 reserved;
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union {
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struct {
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__aligned_u64 remote_addr;
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__u32 rkey;
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__u8 reserved[4];
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} rdma;
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struct {
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__aligned_u64 remote_addr;
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__aligned_u64 compare_add;
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__aligned_u64 swap;
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__u32 rkey;
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__u32 reserved;
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} atomic;
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struct {
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__aligned_u64 remote_addr;
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__u32 log_arg_sz;
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__u32 rkey;
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union {
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struct pvrdma_ex_cmp_swap cmp_swap;
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struct pvrdma_ex_fetch_add fetch_add;
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} wr_data;
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} masked_atomics;
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struct {
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__aligned_u64 iova_start;
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__aligned_u64 pl_pdir_dma;
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__u32 page_shift;
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__u32 page_list_len;
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__u32 length;
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__u32 access_flags;
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__u32 rkey;
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__u32 reserved;
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} fast_reg;
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struct {
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__u32 remote_qpn;
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__u32 remote_qkey;
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struct pvrdma_av av;
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} ud;
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} wr;
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};
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/* Use pvrdma_sge (ib_sge) for send queue s/g array elements. */
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/* Completion queue element. */
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struct pvrdma_cqe {
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__aligned_u64 wr_id;
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__aligned_u64 qp;
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__u32 opcode;
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__u32 status;
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__u32 byte_len;
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__be32 imm_data;
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__u32 src_qp;
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__u32 wc_flags;
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__u32 vendor_err;
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__u16 pkey_index;
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__u16 slid;
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__u8 sl;
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__u8 dlid_path_bits;
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__u8 port_num;
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__u8 smac[6];
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__u8 network_hdr_type;
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__u8 reserved2[6]; /* Pad to next power of 2 (64). */
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};
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#endif /* __VMW_PVRDMA_ABI_H__ */
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