[pda] Fix a bug that resulted to incorrect initialization of PdaDmaBuffer

Author: kostorr

src/Crorc/CrorcDmaChannel.cxx

@@ -67,9 +67,10 @@ CrorcDmaChannel::CrorcDmaChannel(const Parameters& parameters)
   {
     // Create and register the buffer
     // Note: if resizing the file fails, we might've accidentally put the file in a hugetlbfs mount with 1 GB page size
-    Utilities::resetSmartPtr(mSuperpageInfoFile, getPaths().spInfo(), kSuperpageInfoSize, true);
+    SerialId serialId = { getSerialNumber(), getEndpointNumber() };
+    Utilities::resetSmartPtr(mSuperpageInfoFile, getPaths().spInfo(), kSuperpageInfoSize, false);
     Utilities::resetSmartPtr(mPdaDmaBufferFifo, getRocPciDevice().getPciDevice(), mSuperpageInfoFile->getAddress(),
-                             kSuperpageInfoSize, getPdaDmaBufferIndexFifo(getChannelNumber()), false); // note the 'false' at the end specifies non-hugepage memory
+                             kSuperpageInfoSize, getPdaDmaBufferIndexFifo(getChannelNumber()), serialId, false); // note the 'false' at the end specifies non-hugepage memory
 
     const auto& entry = mPdaDmaBufferFifo->getScatterGatherList().at(0);
     if (entry.size < kSuperpageInfoSize) {

src/DmaBufferProvider/FilePdaDmaBufferProvider.h

@@ -34,9 +34,9 @@ namespace roc
 class FilePdaDmaBufferProvider : public DmaBufferProviderInterface
 {
  public:
-  FilePdaDmaBufferProvider(PciDevice* pciDevice, std::string path, size_t size, int dmaBufferId,
+  FilePdaDmaBufferProvider(PciDevice* pciDevice, std::string path, size_t size, int dmaBufferId, SerialId serialId,
                            bool requireHugepage)
-    : mMappedFile(path, size), mAddress(mMappedFile.getAddress()), mSize(mMappedFile.getSize()), mPdaBuffer(pciDevice, mAddress, mSize, dmaBufferId, requireHugepage)
+    : mMappedFile(path, size), mAddress(mMappedFile.getAddress()), mSize(mMappedFile.getSize()), mPdaBuffer(pciDevice, mAddress, mSize, dmaBufferId, serialId, requireHugepage)
   {
   }
 

src/DmaChannelPdaBase.cxx

@@ -62,7 +62,7 @@ DmaChannelPdaBase::DmaChannelPdaBase(const Parameters& parameters,
       [&](buffer_parameters::File parameters) {
         log("Initializing with DMA buffer from memory-mapped file", LogDebugDevel);
         return std::make_unique<FilePdaDmaBufferProvider>(mRocPciDevice->getPciDevice(), parameters.path,
-                                                          parameters.size, bufferId, true);
+                                                          parameters.size, bufferId, mRocPciDevice->getSerialId(), true);
       },
       [&](buffer_parameters::Null) {
         log("Initializing with null DMA buffer", LogDebugDevel);