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215 lines
4.7 KiB
215 lines
4.7 KiB
/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */ |
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/* |
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* Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved. |
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* |
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* This software is available to you under a choice of one of two |
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* licenses. You may choose to be licensed under the terms of the GNU |
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* General Public License (GPL) Version 2, available from the file |
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* COPYING in the main directory of this source tree, or the |
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* OpenIB.org BSD license below: |
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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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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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* SOFTWARE. |
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*/ |
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#ifndef RDMA_USER_RXE_H |
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#define RDMA_USER_RXE_H |
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#include <linux/types.h> |
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#include <linux/socket.h> |
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#include <linux/in.h> |
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#include <linux/in6.h> |
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enum { |
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RXE_NETWORK_TYPE_IPV4 = 1, |
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RXE_NETWORK_TYPE_IPV6 = 2, |
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}; |
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union rxe_gid { |
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__u8 raw[16]; |
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struct { |
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__be64 subnet_prefix; |
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__be64 interface_id; |
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} global; |
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}; |
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struct rxe_global_route { |
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union rxe_gid dgid; |
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__u32 flow_label; |
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__u8 sgid_index; |
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__u8 hop_limit; |
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__u8 traffic_class; |
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}; |
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struct rxe_av { |
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__u8 port_num; |
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/* From RXE_NETWORK_TYPE_* */ |
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__u8 network_type; |
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__u8 dmac[6]; |
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struct rxe_global_route grh; |
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union { |
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struct sockaddr_in _sockaddr_in; |
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struct sockaddr_in6 _sockaddr_in6; |
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} sgid_addr, dgid_addr; |
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}; |
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struct rxe_send_wr { |
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__aligned_u64 wr_id; |
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__u32 num_sge; |
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__u32 opcode; |
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__u32 send_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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union { |
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struct { |
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__aligned_u64 remote_addr; |
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__u32 rkey; |
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__u32 reserved; |
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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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__u32 remote_qpn; |
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__u32 remote_qkey; |
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__u16 pkey_index; |
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} ud; |
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struct { |
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__aligned_u64 addr; |
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__aligned_u64 length; |
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__u32 mr_lkey; |
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__u32 mw_rkey; |
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__u32 rkey; |
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__u32 access; |
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} mw; |
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/* reg is only used by the kernel and is not part of the uapi */ |
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#ifdef __KERNEL__ |
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struct { |
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union { |
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struct ib_mr *mr; |
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__aligned_u64 reserved; |
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}; |
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__u32 key; |
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__u32 access; |
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} reg; |
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#endif |
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} wr; |
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}; |
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struct rxe_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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struct mminfo { |
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__aligned_u64 offset; |
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__u32 size; |
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__u32 pad; |
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}; |
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struct rxe_dma_info { |
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__u32 length; |
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__u32 resid; |
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__u32 cur_sge; |
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__u32 num_sge; |
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__u32 sge_offset; |
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__u32 reserved; |
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union { |
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__u8 inline_data[0]; |
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struct rxe_sge sge[0]; |
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}; |
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}; |
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struct rxe_send_wqe { |
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struct rxe_send_wr wr; |
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struct rxe_av av; |
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__u32 status; |
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__u32 state; |
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__aligned_u64 iova; |
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__u32 mask; |
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__u32 first_psn; |
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__u32 last_psn; |
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__u32 ack_length; |
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__u32 ssn; |
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__u32 has_rd_atomic; |
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struct rxe_dma_info dma; |
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}; |
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struct rxe_recv_wqe { |
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__aligned_u64 wr_id; |
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__u32 num_sge; |
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__u32 padding; |
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struct rxe_dma_info dma; |
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}; |
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struct rxe_create_cq_resp { |
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struct mminfo mi; |
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}; |
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struct rxe_resize_cq_resp { |
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struct mminfo mi; |
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}; |
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struct rxe_create_qp_resp { |
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struct mminfo rq_mi; |
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struct mminfo sq_mi; |
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}; |
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struct rxe_create_srq_resp { |
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struct mminfo mi; |
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__u32 srq_num; |
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__u32 reserved; |
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}; |
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struct rxe_modify_srq_cmd { |
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__aligned_u64 mmap_info_addr; |
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}; |
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/* This data structure is stored at the base of work and |
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* completion queues shared between user space and kernel space. |
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* It contains the producer and consumer indices. Is also |
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* contains a copy of the queue size parameters for user space |
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* to use but the kernel must use the parameters in the |
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* rxe_queue struct. For performance reasons arrange to have |
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* producer and consumer indices in separate cache lines |
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* the kernel should always mask the indices to avoid accessing |
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* memory outside of the data area |
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*/ |
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struct rxe_queue_buf { |
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__u32 log2_elem_size; |
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__u32 index_mask; |
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__u32 pad_1[30]; |
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__u32 producer_index; |
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__u32 pad_2[31]; |
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__u32 consumer_index; |
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__u32 pad_3[31]; |
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__u8 data[]; |
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}; |
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#endif /* RDMA_USER_RXE_H */
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