Merge pull request #3432 from stenzek/bba-tap-win
EXI: Refactor Windows BBA-TAP interface to a read thread, crash fixes, cleanups
This commit is contained in:
commit
1d07fee367
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@ -3,12 +3,13 @@
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// Refer to the license.txt file included.
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#include <cctype>
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#include <cstdlib>
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#include <cstring>
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#include <ctime>
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#include <random>
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#include "Common/Network.h"
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#include "Common/StringUtil.h"
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#include "Common/Timer.h"
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void GenerateMacAddress(const MACConsumer type, u8* mac)
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{
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@ -27,16 +28,12 @@ void GenerateMacAddress(const MACConsumer type, u8* mac)
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break;
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}
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srand((unsigned int)time(nullptr));
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u8 id[3] =
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{
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(u8)rand(),
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(u8)rand(),
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(u8)rand()
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};
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memcpy(&mac[3], id, 3);
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// Generate the 24-bit NIC-specific portion of the MAC address.
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std::default_random_engine generator(Common::Timer::GetTimeMs());
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std::uniform_int_distribution<int> distribution(0x00, 0xFF);
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mac[3] = static_cast<u8>(distribution(generator));
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mac[4] = static_cast<u8>(distribution(generator));
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mac[5] = static_cast<u8>(distribution(generator));
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}
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std::string MacAddressToString(const u8* mac)
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@ -23,10 +23,8 @@ bool CEXIETHERNET::Activate()
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return false;
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}
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readEnabled.store(false);
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INFO_LOG(SP1, "BBA initialized.");
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return true;
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return RecvInit();
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}
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void CEXIETHERNET::Deactivate()
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@ -34,7 +32,8 @@ void CEXIETHERNET::Deactivate()
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close(fd);
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fd = -1;
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readEnabled.store(false);
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readEnabled.Clear();
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readThreadShutdown.Set();
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if (readThread.joinable())
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readThread.join();
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}
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@ -64,11 +63,8 @@ bool CEXIETHERNET::SendFrame(u8* frame, u32 size)
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static void ReadThreadHandler(CEXIETHERNET* self)
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{
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while (true)
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while (!self->readThreadShutdown.IsSet())
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{
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if (self->fd < 0)
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return;
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fd_set rfds;
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FD_ZERO(&rfds);
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FD_SET(self->fd, &rfds);
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@ -79,14 +75,14 @@ static void ReadThreadHandler(CEXIETHERNET* self)
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if (select(self->fd + 1, &rfds, nullptr, nullptr, &timeout) <= 0)
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continue;
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int readBytes = read(self->fd, self->mRecvBuffer, BBA_RECV_SIZE);
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int readBytes = read(self->fd, self->mRecvBuffer.get(), BBA_RECV_SIZE);
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if (readBytes < 0)
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{
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ERROR_LOG(SP1, "Failed to read from BBA, err=%d", readBytes);
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}
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else if (self->readEnabled.load())
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else if (self->readEnabled.IsSet())
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{
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INFO_LOG(SP1, "Read data: %s", ArrayToString(self->mRecvBuffer, readBytes, 0x10).c_str());
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INFO_LOG(SP1, "Read data: %s", ArrayToString(self->mRecvBuffer.get(), readBytes, 0x10).c_str());
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self->mRecvBufferLength = readBytes;
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self->RecvHandlePacket();
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}
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@ -99,16 +95,12 @@ bool CEXIETHERNET::RecvInit()
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return true;
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}
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bool CEXIETHERNET::RecvStart()
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void CEXIETHERNET::RecvStart()
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{
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if (!readThread.joinable())
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RecvInit();
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readEnabled.store(true);
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return true;
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readEnabled.Set();
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}
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void CEXIETHERNET::RecvStop()
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{
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readEnabled.store(false);
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readEnabled.Clear();
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}
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@ -68,10 +68,8 @@ bool CEXIETHERNET::Activate()
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}
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ioctl(fd, TUNSETNOCSUM, 1);
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readEnabled.store(false);
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INFO_LOG(SP1, "BBA initialized with associated tap %s", ifr.ifr_name);
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return true;
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return RecvInit();
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#else
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NOTIMPLEMENTED("Activate");
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return false;
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@ -84,7 +82,8 @@ void CEXIETHERNET::Deactivate()
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close(fd);
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fd = -1;
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readEnabled.store(false);
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readEnabled.Clear();
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readThreadShutdown.Set();
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if (readThread.joinable())
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readThread.join();
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#else
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@ -126,11 +125,8 @@ bool CEXIETHERNET::SendFrame(u8* frame, u32 size)
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static void ReadThreadHandler(CEXIETHERNET* self)
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{
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while (true)
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while (!self->readThreadShutdown.IsSet())
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{
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if (self->fd < 0)
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return;
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fd_set rfds;
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FD_ZERO(&rfds);
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FD_SET(self->fd, &rfds);
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@ -141,14 +137,14 @@ static void ReadThreadHandler(CEXIETHERNET* self)
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if (select(self->fd + 1, &rfds, nullptr, nullptr, &timeout) <= 0)
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continue;
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int readBytes = read(self->fd, self->mRecvBuffer, BBA_RECV_SIZE);
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int readBytes = read(self->fd, self->mRecvBuffer.get(), BBA_RECV_SIZE);
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if (readBytes < 0)
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{
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ERROR_LOG(SP1, "Failed to read from BBA, err=%d", readBytes);
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}
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else if (self->readEnabled.load())
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else if (self->readEnabled.IsSet())
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{
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INFO_LOG(SP1, "Read data: %s", ArrayToString(self->mRecvBuffer, readBytes, 0x10).c_str());
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INFO_LOG(SP1, "Read data: %s", ArrayToString(self->mRecvBuffer.get(), readBytes, 0x10).c_str());
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self->mRecvBufferLength = readBytes;
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self->RecvHandlePacket();
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}
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@ -166,24 +162,19 @@ bool CEXIETHERNET::RecvInit()
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#endif
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}
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bool CEXIETHERNET::RecvStart()
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void CEXIETHERNET::RecvStart()
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{
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#ifdef __linux__
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if (!readThread.joinable())
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RecvInit();
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readEnabled.store(true);
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return true;
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readEnabled.Set();
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#else
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NOTIMPLEMENTED("RecvStart");
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return false;
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#endif
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}
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void CEXIETHERNET::RecvStop()
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{
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#ifdef __linux__
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readEnabled.store(false);
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readEnabled.Clear();
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#else
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NOTIMPLEMENTED("RecvStop");
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#endif
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@ -2,6 +2,7 @@
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include "Common/Assert.h"
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#include "Common/MsgHandler.h"
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#include "Common/StringUtil.h"
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#include "Common/Logging/Log.h"
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@ -222,7 +223,14 @@ bool CEXIETHERNET::Activate()
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return false;
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}
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return true;
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/* initialize read/write events */
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mReadOverlapped.hEvent = CreateEvent(nullptr, TRUE, FALSE, nullptr);
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mWriteOverlapped.hEvent = CreateEvent(nullptr, TRUE, FALSE, nullptr);
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if (mReadOverlapped.hEvent == nullptr || mWriteOverlapped.hEvent == nullptr)
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return false;
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mWriteBuffer.reserve(1518);
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return RecvInit();
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}
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void CEXIETHERNET::Deactivate()
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@ -230,10 +238,24 @@ void CEXIETHERNET::Deactivate()
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if (!IsActivated())
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return;
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RecvStop();
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// Signal read thread to exit.
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readEnabled.Clear();
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readThreadShutdown.Set();
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// Cancel any outstanding requests from both this thread (writes), and the read thread.
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CancelIoEx(mHAdapter, nullptr);
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// Wait for read thread to exit.
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if (readThread.joinable())
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readThread.join();
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// Clean-up handles
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CloseHandle(mReadOverlapped.hEvent);
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CloseHandle(mWriteOverlapped.hEvent);
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CloseHandle(mHAdapter);
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mHAdapter = INVALID_HANDLE_VALUE;
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memset(&mReadOverlapped, 0, sizeof(mReadOverlapped));
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memset(&mWriteOverlapped, 0, sizeof(mWriteOverlapped));
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}
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bool CEXIETHERNET::IsActivated()
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@ -241,101 +263,103 @@ bool CEXIETHERNET::IsActivated()
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return mHAdapter != INVALID_HANDLE_VALUE;
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}
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bool CEXIETHERNET::SendFrame(u8 *frame, u32 size)
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static void ReadThreadHandler(CEXIETHERNET* self)
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{
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DEBUG_LOG(SP1, "SendFrame %x\n%s",
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size, ArrayToString(frame, size, 0x10).c_str());
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OVERLAPPED overlap;
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ZeroMemory(&overlap, sizeof(overlap));
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// WriteFile will always return false because the TAP handle is async
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WriteFile(mHAdapter, frame, size, nullptr, &overlap);
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DWORD res = GetLastError();
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if (res != ERROR_IO_PENDING)
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while (!self->readThreadShutdown.IsSet())
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{
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ERROR_LOG(SP1, "Failed to send packet with error 0x%X", res);
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DWORD transferred;
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// Read from TAP into internal buffer.
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if (ReadFile(self->mHAdapter, self->mRecvBuffer.get(), BBA_RECV_SIZE, &transferred, &self->mReadOverlapped))
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{
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// Returning immediately is not likely to happen, but if so, reset the event state manually.
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ResetEvent(self->mReadOverlapped.hEvent);
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}
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else
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{
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// IO should be pending.
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if (GetLastError() != ERROR_IO_PENDING)
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{
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ERROR_LOG(SP1, "ReadFile failed (err=0x%X)", GetLastError());
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continue;
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}
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// Block until the read completes.
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if (!GetOverlappedResult(self->mHAdapter, &self->mReadOverlapped, &transferred, TRUE))
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{
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// If CancelIO was called, we should exit (the flag will be set).
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if (GetLastError() == ERROR_OPERATION_ABORTED)
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continue;
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// Something else went wrong.
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ERROR_LOG(SP1, "GetOverlappedResult failed (err=0x%X)", GetLastError());
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continue;
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}
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}
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// Copy to BBA buffer, and fire interrupt if enabled.
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DEBUG_LOG(SP1, "Received %u bytes\n: %s", transferred, ArrayToString(self->mRecvBuffer.get(), transferred, 0x10).c_str());
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if (self->readEnabled.IsSet())
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{
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self->mRecvBufferLength = transferred;
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self->RecvHandlePacket();
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}
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}
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}
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bool CEXIETHERNET::SendFrame(u8* frame, u32 size)
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{
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DEBUG_LOG(SP1, "SendFrame %u bytes:\n%s", size, ArrayToString(frame, size, 0x10).c_str());
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// Check for a background write. We can't issue another one until this one has completed.
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DWORD transferred;
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if (mWritePending)
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{
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// Wait for previous write to complete.
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if (!GetOverlappedResult(mHAdapter, &mWriteOverlapped, &transferred, TRUE))
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ERROR_LOG(SP1, "GetOverlappedResult failed (err=0x%X)", GetLastError());
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}
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// Copy to write buffer.
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mWriteBuffer.resize(size);
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memcpy(mWriteBuffer.data(), frame, size);
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mWritePending = true;
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// Queue async write.
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if (WriteFile(mHAdapter, mWriteBuffer.data(), size, &transferred, &mWriteOverlapped))
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{
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// Returning immediately is not likely to happen, but if so, reset the event state manually.
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ResetEvent(mWriteOverlapped.hEvent);
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}
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else
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{
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// IO should be pending.
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if (GetLastError() != ERROR_IO_PENDING)
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{
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ERROR_LOG(SP1, "WriteFile failed (err=0x%X)", GetLastError());
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ResetEvent(mWriteOverlapped.hEvent);
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mWritePending = false;
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return false;
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}
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}
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// Always report the packet as being sent successfully, even though it might be a lie
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SendComplete();
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return true;
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}
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VOID CALLBACK CEXIETHERNET::ReadWaitCallback(PVOID lpParameter, BOOLEAN TimerFired)
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{
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CEXIETHERNET* self = (CEXIETHERNET*)lpParameter;
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GetOverlappedResult(self->mHAdapter, &self->mReadOverlapped,
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(LPDWORD)&self->mRecvBufferLength, false);
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self->RecvHandlePacket();
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}
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bool CEXIETHERNET::RecvInit()
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{
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// Set up recv event
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if ((mHRecvEvent = CreateEvent(nullptr, false, false, nullptr)) == nullptr)
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{
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ERROR_LOG(SP1, "Failed to create recv event:%x", GetLastError());
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return false;
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}
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ZeroMemory(&mReadOverlapped, sizeof(mReadOverlapped));
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RegisterWaitForSingleObject(&mHReadWait, mHRecvEvent, ReadWaitCallback,
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this, INFINITE, WT_EXECUTEDEFAULT);
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mReadOverlapped.hEvent = mHRecvEvent;
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readThread = std::thread(ReadThreadHandler, this);
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return true;
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}
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bool CEXIETHERNET::RecvStart()
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void CEXIETHERNET::RecvStart()
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{
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if (!IsActivated())
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return false;
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if (mHRecvEvent == INVALID_HANDLE_VALUE)
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RecvInit();
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DWORD res = ReadFile(mHAdapter, mRecvBuffer, BBA_RECV_SIZE,
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(LPDWORD)&mRecvBufferLength, &mReadOverlapped);
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if (res)
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{
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// Since the read is synchronous here, complete immediately
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RecvHandlePacket();
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return true;
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}
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else
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{
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DWORD err = GetLastError();
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if (err == ERROR_IO_PENDING)
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{
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return true;
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}
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// Unexpected error
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ERROR_LOG(SP1, "Failed to recieve packet with error 0x%X", err);
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return false;
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}
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readEnabled.Set();
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}
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void CEXIETHERNET::RecvStop()
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{
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if (!IsActivated())
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return;
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UnregisterWaitEx(mHReadWait, INVALID_HANDLE_VALUE);
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if (mHRecvEvent != INVALID_HANDLE_VALUE)
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{
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CloseHandle(mHRecvEvent);
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mHRecvEvent = INVALID_HANDLE_VALUE;
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}
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readEnabled.Clear();
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}
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|
|
|
@ -20,10 +20,10 @@
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CEXIETHERNET::CEXIETHERNET()
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{
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tx_fifo = new u8[1518];
|
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mBbaMem = new u8[BBA_MEM_SIZE];
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tx_fifo = std::make_unique<u8[]>(BBA_TXFIFO_SIZE);
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mBbaMem = std::make_unique<u8[]>(BBA_MEM_SIZE);
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mRecvBuffer = new u8[BBA_RECV_SIZE];
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mRecvBuffer = std::make_unique<u8[]>(BBA_RECV_SIZE);
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mRecvBufferLength = 0;
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MXHardReset();
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|
@ -47,8 +47,9 @@ CEXIETHERNET::CEXIETHERNET()
|
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#if defined(_WIN32)
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mHAdapter = INVALID_HANDLE_VALUE;
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mHRecvEvent = INVALID_HANDLE_VALUE;
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mHReadWait = INVALID_HANDLE_VALUE;
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memset(&mReadOverlapped, 0, sizeof(mReadOverlapped));
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memset(&mWriteOverlapped, 0, sizeof(mWriteOverlapped));
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mWritePending = false;
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#elif defined(__linux__) || defined(__APPLE__)
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fd = -1;
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#endif
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|
@ -57,10 +58,6 @@ CEXIETHERNET::CEXIETHERNET()
|
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CEXIETHERNET::~CEXIETHERNET()
|
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{
|
||||
Deactivate();
|
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|
||||
delete[] tx_fifo;
|
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delete[] mBbaMem;
|
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delete[] mRecvBuffer;
|
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}
|
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|
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void CEXIETHERNET::SetCS(int cs)
|
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|
@ -205,9 +202,8 @@ void CEXIETHERNET::DMARead(u32 addr, u32 size)
|
|||
|
||||
void CEXIETHERNET::DoState(PointerWrap &p)
|
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{
|
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p.Do(mBbaMem);
|
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// TODO ... the rest...
|
||||
ERROR_LOG(SP1, "CEXIETHERNET::DoState not implemented!");
|
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p.DoArray(tx_fifo.get(), BBA_TXFIFO_SIZE);
|
||||
p.DoArray(mBbaMem.get(), BBA_MEM_SIZE);
|
||||
}
|
||||
|
||||
bool CEXIETHERNET::IsMXCommand(u32 const data)
|
||||
|
@ -298,7 +294,7 @@ const char* CEXIETHERNET::GetRegisterName() const
|
|||
|
||||
void CEXIETHERNET::MXHardReset()
|
||||
{
|
||||
memset(mBbaMem, 0, BBA_MEM_SIZE);
|
||||
memset(mBbaMem.get(), 0, BBA_MEM_SIZE);
|
||||
|
||||
mBbaMem[BBA_NCRB] = NCRB_PR;
|
||||
mBbaMem[BBA_NWAYC] = NWAYC_LTE | NWAYC_ANE;
|
||||
|
@ -384,7 +380,7 @@ void CEXIETHERNET::DirectFIFOWrite(u8 *data, u32 size)
|
|||
|
||||
u16 *tx_fifo_count = (u16 *)&mBbaMem[BBA_TXFIFOCNT];
|
||||
|
||||
memcpy(tx_fifo + *tx_fifo_count, data, size);
|
||||
memcpy(tx_fifo.get() + *tx_fifo_count, data, size);
|
||||
|
||||
*tx_fifo_count += size;
|
||||
// TODO: not sure this mask is correct.
|
||||
|
@ -395,7 +391,7 @@ void CEXIETHERNET::DirectFIFOWrite(u8 *data, u32 size)
|
|||
|
||||
void CEXIETHERNET::SendFromDirectFIFO()
|
||||
{
|
||||
SendFrame(tx_fifo, *(u16 *)&mBbaMem[BBA_TXFIFOCNT]);
|
||||
SendFrame(tx_fifo.get(), *(u16 *)&mBbaMem[BBA_TXFIFOCNT]);
|
||||
}
|
||||
|
||||
void CEXIETHERNET::SendFromPacketBuffer()
|
||||
|
@ -452,9 +448,9 @@ inline bool CEXIETHERNET::RecvMACFilter()
|
|||
// Unicast?
|
||||
if ((mRecvBuffer[0] & 0x01) == 0)
|
||||
{
|
||||
return memcmp(mRecvBuffer, &mBbaMem[BBA_NAFR_PAR0], 6) == 0;
|
||||
return memcmp(mRecvBuffer.get(), &mBbaMem[BBA_NAFR_PAR0], 6) == 0;
|
||||
}
|
||||
else if (memcmp(mRecvBuffer, broadcast, 6) == 0)
|
||||
else if (memcmp(mRecvBuffer.get(), broadcast, 6) == 0)
|
||||
{
|
||||
// Accept broadcast?
|
||||
return !!(mBbaMem[BBA_NCRB] & NCRB_AB);
|
||||
|
@ -467,7 +463,7 @@ inline bool CEXIETHERNET::RecvMACFilter()
|
|||
else
|
||||
{
|
||||
// Lookup the dest eth address in the hashmap
|
||||
u16 index = HashIndex(mRecvBuffer);
|
||||
u16 index = HashIndex(mRecvBuffer.get());
|
||||
return !!(mBbaMem[BBA_NAFR_MAR0 + index / 8] & (1 << (index % 8)));
|
||||
}
|
||||
}
|
||||
|
|
|
@ -6,11 +6,13 @@
|
|||
|
||||
#include <atomic>
|
||||
#include <thread>
|
||||
#include <vector>
|
||||
|
||||
#ifdef _WIN32
|
||||
#include <Windows.h>
|
||||
#endif
|
||||
|
||||
#include "Common/Flag.h"
|
||||
#include "Core/HW/EXI_Device.h"
|
||||
|
||||
class PointerWrap;
|
||||
|
@ -157,7 +159,8 @@ enum
|
|||
{
|
||||
BBA_NUM_PAGES = 0x10,
|
||||
BBA_PAGE_SIZE = 0x100,
|
||||
BBA_MEM_SIZE = BBA_NUM_PAGES * BBA_PAGE_SIZE
|
||||
BBA_MEM_SIZE = BBA_NUM_PAGES * BBA_PAGE_SIZE,
|
||||
BBA_TXFIFO_SIZE = 1518
|
||||
};
|
||||
|
||||
enum
|
||||
|
@ -307,8 +310,8 @@ public:
|
|||
void inc_rwp();
|
||||
bool RecvHandlePacket();
|
||||
|
||||
u8 *tx_fifo;
|
||||
u8 *mBbaMem;
|
||||
std::unique_ptr<u8[]> mBbaMem;
|
||||
std::unique_ptr<u8[]> tx_fifo;
|
||||
|
||||
// TAP interface
|
||||
bool Activate();
|
||||
|
@ -316,21 +319,26 @@ public:
|
|||
bool IsActivated();
|
||||
bool SendFrame(u8 *frame, u32 size);
|
||||
bool RecvInit();
|
||||
bool RecvStart();
|
||||
void RecvStart();
|
||||
void RecvStop();
|
||||
|
||||
u8 *mRecvBuffer;
|
||||
std::unique_ptr<u8[]> mRecvBuffer;
|
||||
u32 mRecvBufferLength;
|
||||
|
||||
#if defined(_WIN32)
|
||||
HANDLE mHAdapter, mHRecvEvent, mHReadWait;
|
||||
DWORD mMtu;
|
||||
HANDLE mHAdapter;
|
||||
OVERLAPPED mReadOverlapped;
|
||||
static VOID CALLBACK ReadWaitCallback(PVOID lpParameter, BOOLEAN TimerFired);
|
||||
OVERLAPPED mWriteOverlapped;
|
||||
std::vector<u8> mWriteBuffer;
|
||||
bool mWritePending;
|
||||
#elif defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)
|
||||
int fd;
|
||||
#endif
|
||||
|
||||
#if defined(WIN32) || defined(__linux__) || defined(__APPLE__) || defined(__FreeBSD__)
|
||||
std::thread readThread;
|
||||
std::atomic<bool> readEnabled;
|
||||
Common::Flag readEnabled;
|
||||
Common::Flag readThreadShutdown;
|
||||
#endif
|
||||
|
||||
};
|
||||
|
|
Loading…
Reference in New Issue