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vmw_pvrdma-abi.h
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/* * 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, * 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 __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, }; 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; }; /* 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__ */