public void Smb2OverRdmaChannel_ReadWriteMultipleBufferDescriptorList()
{
InitSmbdConnectionForTestCases(smbdAdapter.TestConfig.TestFileName_LargeFile);
uint size = smbdAdapter.Smb2MaxReadSize;
if (size > smbdAdapter.Smb2MaxWriteSize)
{
size = smbdAdapter.Smb2MaxWriteSize;
}
int bufferCount = ushort.MaxValue / SmbdBufferDescriptorV1.SIZE; // SMB2 max support channel info size
uint bufferLength = (uint)(size / bufferCount + 1); // buffer length of each buffer descriptor
byte[] channelInfo = new byte[SmbdBufferDescriptorV1.SIZE * bufferCount];
byte[] writeContent = Encoding.ASCII.GetBytes(Smb2Utility.CreateRandomStringInByte((int)size));
byte[] readContent = new byte[size];
NtStatus status;
#region SMB2 Write file
BaseTestSite.Log.Add(LogEntryKind.TestStep, "Register memory and get buffer descriptor for SMB2 WRITE");
SmbdBufferDescriptorV1[] writeDescp = new SmbdBufferDescriptorV1[bufferCount];
for (int i = 0; i < bufferCount; ++i)
{
smbdAdapter.SmbdRegisterBuffer(
bufferLength,
SmbdBufferReadWrite.RDMA_READ_PERMISSION_FOR_WRITE_FILE,
out writeDescp[i]);
byte[] channelInfoBlock = TypeMarshal.ToBytes <SmbdBufferDescriptorV1>(writeDescp[i]);
Array.Copy(
channelInfoBlock,
0,
channelInfo,
SmbdBufferDescriptorV1.SIZE * i,
SmbdBufferDescriptorV1.SIZE);
}
// copy write content
for (int index = 0, writeOffset = 0;
index < bufferCount && writeOffset < writeContent.Length;
++index, writeOffset += (int)bufferLength)
{
int length = (int)bufferLength;
if (length + writeOffset > writeContent.Length)
{
length = writeContent.Length - writeOffset;
}
byte[] buffer = new byte[length];
Array.Copy(writeContent, writeOffset, buffer, 0, length);
smbdAdapter.SmbdWriteRegisteredBuffer(buffer, writeDescp[index]);
}
BaseTestSite.Log.Add(LogEntryKind.TestStep, "Write content to file over RDMA.");
WRITE_Response writeResponse;
status = (NtStatus)smbdAdapter.Smb2WriteOverRdmaChannel(
0,
channelInfo,
size,
out writeResponse
);
BaseTestSite.Assert.AreEqual <NtStatus>(
NtStatus.STATUS_SUCCESS,
status,
"Status of SMB2 Write File is {0}", status);
BaseTestSite.Assert.AreEqual <uint>(
(uint)size,
writeResponse.Count,
"DataLength in WRITE response is {0}", writeResponse.Count);
#endregion
#region Read file from server
BaseTestSite.Log.Add(LogEntryKind.TestStep, "Register memory and get buffer descriptor for SMB2 WRITE");
SmbdBufferDescriptorV1[] readDescp = new SmbdBufferDescriptorV1[bufferCount];
for (int i = 0; i < bufferCount; ++i)
{
smbdAdapter.SmbdRegisterBuffer(
bufferLength,
SmbdBufferReadWrite.RDMA_WRITE_PERMISSION_FOR_READ_FILE,
out readDescp[i]);
byte[] channelInfoBlock = TypeMarshal.ToBytes <SmbdBufferDescriptorV1>(readDescp[i]);
Array.Copy(
channelInfoBlock,
0,
channelInfo,
SmbdBufferDescriptorV1.SIZE * i,
SmbdBufferDescriptorV1.SIZE);
}
BaseTestSite.Log.Add(LogEntryKind.TestStep, "Read content from file over RDMA.");
READ_Response readResponse;
byte[] readData;
status = (NtStatus)smbdAdapter.Smb2ReadOverRdmaChannel(
0,
size,
channelInfo,
out readResponse,
out readData
);
BaseTestSite.Assert.AreEqual <NtStatus>(
NtStatus.STATUS_SUCCESS,
status,
"Status of SMB2 Read File is {0}", status);
BaseTestSite.Assert.AreEqual <uint>(
0,
readResponse.DataLength,
"DataLength in READ response is {0}", readResponse.DataLength);
BaseTestSite.Assert.AreEqual <int>(
0,
readData.Length,
"Data length of content in response is {0}", readData.Length);
BaseTestSite.Assert.AreEqual <byte>(
80,
readResponse.DataOffset,
"DataOffset in response is {0}", readResponse.DataOffset);
BaseTestSite.Assert.AreEqual <uint>(
size,
readResponse.DataRemaining,
"DataRemaining in response is {0}", readResponse.DataRemaining);
// read content
for (int index = 0, readOffset = 0;
index < bufferCount && readOffset < readContent.Length;
++index, readOffset += (int)bufferLength)
{
int length = (int)bufferLength;
if (length + readOffset > readContent.Length)
{
length = writeContent.Length - readOffset;
}
byte[] buffer = new byte[length];
smbdAdapter.SmbdReadRegisteredBuffer(buffer, readDescp[index]);
Array.Copy(buffer, 0, readContent, readOffset, length);
}
#endregion
BaseTestSite.Log.Add(LogEntryKind.TestStep, "Check the read content is same as the one written into the file.");
BaseTestSite.Assert.IsTrue(
SmbdUtilities.CompareByteArray(writeContent, readContent),
"Check content of file");
BaseTestSite.Log.Add(LogEntryKind.TestStep, "Close file.");
smbdAdapter.Smb2CloseFile();
}