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/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
/*
* Copyright (c) 2012-2016 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of EITHER the GNU General Public License
* version 2 as published by the Free Software Foundation or the BSD
* 2-Clause License. This program is distributed in the hope that it
* will be useful, but WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED
* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License version 2 for more details at
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html.
*
* You should have received a copy of the GNU General Public License
* along with this program available in the file COPYING in the main
* directory of this source tree.
*
* The BSD 2-Clause 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 HOLDER 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,
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __VMW_PVRDMA_ABI_H__
#define __VMW_PVRDMA_ABI_H__
#include <linux/types.h>
#define PVRDMA_UVERBS_ABI_VERSION 3 /* ABI Version. */
#define PVRDMA_UAR_HANDLE_MASK 0x00FFFFFF /* Bottom 24 bits. */
#define PVRDMA_UAR_QP_OFFSET 0 /* QP doorbell. */
#define PVRDMA_UAR_QP_SEND (1 << 30) /* Send bit. */
#define PVRDMA_UAR_QP_RECV (1 << 31) /* Recv bit. */
#define PVRDMA_UAR_CQ_OFFSET 4 /* CQ doorbell. */
#define PVRDMA_UAR_CQ_ARM_SOL (1 << 29) /* Arm solicited bit. */
#define PVRDMA_UAR_CQ_ARM (1 << 30) /* Arm bit. */
#define PVRDMA_UAR_CQ_POLL (1 << 31) /* Poll bit. */
#define PVRDMA_UAR_SRQ_OFFSET 8 /* SRQ doorbell. */
#define PVRDMA_UAR_SRQ_RECV (1 << 30) /* Recv bit. */
enum pvrdma_wr_opcode {
PVRDMA_WR_RDMA_WRITE,
PVRDMA_WR_RDMA_WRITE_WITH_IMM,
PVRDMA_WR_SEND,
PVRDMA_WR_SEND_WITH_IMM,
PVRDMA_WR_RDMA_READ,
PVRDMA_WR_ATOMIC_CMP_AND_SWP,
PVRDMA_WR_ATOMIC_FETCH_AND_ADD,
PVRDMA_WR_LSO,
PVRDMA_WR_SEND_WITH_INV,
PVRDMA_WR_RDMA_READ_WITH_INV,
PVRDMA_WR_LOCAL_INV,
PVRDMA_WR_FAST_REG_MR,
PVRDMA_WR_MASKED_ATOMIC_CMP_AND_SWP,
PVRDMA_WR_MASKED_ATOMIC_FETCH_AND_ADD,
PVRDMA_WR_BIND_MW,
PVRDMA_WR_REG_SIG_MR,
PVRDMA_WR_ERROR,
};
enum pvrdma_wc_status {
PVRDMA_WC_SUCCESS,
PVRDMA_WC_LOC_LEN_ERR,
PVRDMA_WC_LOC_QP_OP_ERR,
PVRDMA_WC_LOC_EEC_OP_ERR,
PVRDMA_WC_LOC_PROT_ERR,
PVRDMA_WC_WR_FLUSH_ERR,
PVRDMA_WC_MW_BIND_ERR,
PVRDMA_WC_BAD_RESP_ERR,
PVRDMA_WC_LOC_ACCESS_ERR,
PVRDMA_WC_REM_INV_REQ_ERR,
PVRDMA_WC_REM_ACCESS_ERR,
PVRDMA_WC_REM_OP_ERR,
PVRDMA_WC_RETRY_EXC_ERR,
PVRDMA_WC_RNR_RETRY_EXC_ERR,
PVRDMA_WC_LOC_RDD_VIOL_ERR,
PVRDMA_WC_REM_INV_RD_REQ_ERR,
PVRDMA_WC_REM_ABORT_ERR,
PVRDMA_WC_INV_EECN_ERR,
PVRDMA_WC_INV_EEC_STATE_ERR,
PVRDMA_WC_FATAL_ERR,
PVRDMA_WC_RESP_TIMEOUT_ERR,
PVRDMA_WC_GENERAL_ERR,
};
enum pvrdma_wc_opcode {
PVRDMA_WC_SEND,
PVRDMA_WC_RDMA_WRITE,
PVRDMA_WC_RDMA_READ,
PVRDMA_WC_COMP_SWAP,
PVRDMA_WC_FETCH_ADD,
PVRDMA_WC_BIND_MW,
PVRDMA_WC_LSO,
PVRDMA_WC_LOCAL_INV,
PVRDMA_WC_FAST_REG_MR,
PVRDMA_WC_MASKED_COMP_SWAP,
PVRDMA_WC_MASKED_FETCH_ADD,
PVRDMA_WC_RECV = 1 << 7,
PVRDMA_WC_RECV_RDMA_WITH_IMM,
};
enum pvrdma_wc_flags {
PVRDMA_WC_GRH = 1 << 0,
PVRDMA_WC_WITH_IMM = 1 << 1,
PVRDMA_WC_WITH_INVALIDATE = 1 << 2,
PVRDMA_WC_IP_CSUM_OK = 1 << 3,
PVRDMA_WC_WITH_SMAC = 1 << 4,
PVRDMA_WC_WITH_VLAN = 1 << 5,
PVRDMA_WC_WITH_NETWORK_HDR_TYPE = 1 << 6,
PVRDMA_WC_FLAGS_MAX = PVRDMA_WC_WITH_NETWORK_HDR_TYPE,
};
enum pvrdma_network_type {
PVRDMA_NETWORK_IB,
PVRDMA_NETWORK_ROCE_V1 = PVRDMA_NETWORK_IB,
PVRDMA_NETWORK_IPV4,
PVRDMA_NETWORK_IPV6
};
struct pvrdma_alloc_ucontext_resp {
__u32 qp_tab_size;
__u32 reserved;
};
struct pvrdma_alloc_pd_resp {
__u32 pdn;
__u32 reserved;
};
struct pvrdma_create_cq {
__aligned_u64 buf_addr;
__u32 buf_size;
__u32 reserved;
};
struct pvrdma_create_cq_resp {
__u32 cqn;
__u32 reserved;
};
struct pvrdma_resize_cq {
__aligned_u64 buf_addr;
__u32 buf_size;
__u32 reserved;
};
struct pvrdma_create_srq {
__aligned_u64 buf_addr;
__u32 buf_size;
__u32 reserved;
};
struct pvrdma_create_srq_resp {
__u32 srqn;
__u32 reserved;
};
struct pvrdma_create_qp {
__aligned_u64 rbuf_addr;
__aligned_u64 sbuf_addr;
__u32 rbuf_size;
__u32 sbuf_size;
__aligned_u64 qp_addr;
};
struct pvrdma_create_qp_resp {
__u32 qpn;
__u32 qp_handle;
};
/* PVRDMA masked atomic compare and swap */
struct pvrdma_ex_cmp_swap {
__aligned_u64 swap_val;
__aligned_u64 compare_val;
__aligned_u64 swap_mask;
__aligned_u64 compare_mask;
};
/* PVRDMA masked atomic fetch and add */
struct pvrdma_ex_fetch_add {
__aligned_u64 add_val;
__aligned_u64 field_boundary;
};
/* PVRDMA address vector. */
struct pvrdma_av {
__u32 port_pd;
__u32 sl_tclass_flowlabel;
__u8 dgid[16];
__u8 src_path_bits;
__u8 gid_index;
__u8 stat_rate;
__u8 hop_limit;
__u8 dmac[6];
__u8 reserved[6];
};
/* PVRDMA scatter/gather entry */
struct pvrdma_sge {
__aligned_u64 addr;
__u32 length;
__u32 lkey;
};
/* PVRDMA receive queue work request */
struct pvrdma_rq_wqe_hdr {
__aligned_u64 wr_id; /* wr id */
__u32 num_sge; /* size of s/g array */
__u32 total_len; /* reserved */
};
/* Use pvrdma_sge (ib_sge) for receive queue s/g array elements. */
/* PVRDMA send queue work request */
struct pvrdma_sq_wqe_hdr {
__aligned_u64 wr_id; /* wr id */
__u32 num_sge; /* size of s/g array */
__u32 total_len; /* reserved */
__u32 opcode; /* operation type */
__u32 send_flags; /* wr flags */
union {
__be32 imm_data;
__u32 invalidate_rkey;
} ex;
__u32 reserved;
union {
struct {
__aligned_u64 remote_addr;
__u32 rkey;
__u8 reserved[4];
} rdma;
struct {
__aligned_u64 remote_addr;
__aligned_u64 compare_add;
__aligned_u64 swap;
__u32 rkey;
__u32 reserved;
} atomic;
struct {
__aligned_u64 remote_addr;
__u32 log_arg_sz;
__u32 rkey;
union {
struct pvrdma_ex_cmp_swap cmp_swap;
struct pvrdma_ex_fetch_add fetch_add;
} wr_data;
} masked_atomics;
struct {
__aligned_u64 iova_start;
__aligned_u64 pl_pdir_dma;
__u32 page_shift;
__u32 page_list_len;
__u32 length;
__u32 access_flags;
__u32 rkey;
__u32 reserved;
} fast_reg;
struct {
__u32 remote_qpn;
__u32 remote_qkey;
struct pvrdma_av av;
} ud;
} wr;
};
/* Use pvrdma_sge (ib_sge) for send queue s/g array elements. */
/* Completion queue element. */
struct pvrdma_cqe {
__aligned_u64 wr_id;
__aligned_u64 qp;
__u32 opcode;
__u32 status;
__u32 byte_len;
__be32 imm_data;
__u32 src_qp;
__u32 wc_flags;
__u32 vendor_err;
__u16 pkey_index;
__u16 slid;
__u8 sl;
__u8 dlid_path_bits;
__u8 port_num;
__u8 smac[6];
__u8 network_hdr_type;
__u8 reserved2[6]; /* Pad to next power of 2 (64). */
};
#endif /* __VMW_PVRDMA_ABI_H__ */
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