mirror of
https://github.com/versity/versitygw.git
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Jihyeon Gim
efa0309da4
Port the hipObject v2 reliable-connection session core into cuwrapper/rc: the session table and state machine, the wire codec for the hipobj-rc-v2 headers, request parsing, the injectable clock and randomness sources, the transport layer (QP/CQ lifecycle, RTR/RTS transitions, staging registration), the data phase (RDMA write with immediate for GET, receive with immediate for PUT), the RDMA token codec, and the dynamically loaded ibverbs shim (ibv-core.h plus the dlopen host binding). The sources are a port of the upstream hipObject v2 core, kept close to the original so the two trees can be diffed during review. Nothing links against them yet; a Makefile rule builds the objects into rdma/librcserver.a for the ABI layer that follows. Signed-off-by: Jihyeon Gim <potatogim@potatogim.net>
38 lines
1.0 KiB
C++
38 lines
1.0 KiB
C++
/* Copyright (c) Advanced Micro Devices, Inc. All rights reserved.
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*
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* SPDX-License-Identifier: MIT
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*/
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#pragma once
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#include <cstdint>
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#include "ibv-core.h"
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namespace hipObj {
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struct RdmaToken;
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struct RcConnection {
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struct ibv_context* ctx = nullptr;
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struct ibv_pd* pd = nullptr;
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struct ibv_cq* cq = nullptr;
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struct ibv_qp* qp = nullptr;
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uint8_t portNum = 1;
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int gidIndex = -1;
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union ibv_gid localGid = {};
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};
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int openRdmaDevice(int nicIndex, RcConnection& conn);
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int openRdmaDeviceByName(const char* devName, RcConnection& conn);
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void closeRdmaDevice(RcConnection& conn);
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int createRcQp(RcConnection& conn, int cqSize, int maxSendWr, int maxRecvWr);
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int transitionQpToInit(RcConnection& conn);
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int transitionQpToRtr(RcConnection& conn, uint32_t destQpNum, uint16_t destLid,
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union ibv_gid destGid);
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int transitionQpToRts(RcConnection& conn);
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int connectRcPeer(RcConnection& conn, const RdmaToken& peerToken);
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int pollCompletion(RcConnection& conn, int expectedOpcode, int timeoutMs);
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} // namespace hipObj
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