User Manual

WinOF VPI for Windows User Manual Rev 4.3
Mellanox Technologies
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• Performance tests
2.1.3 Reading Port Counters Statistics
RoCE port statistics are not shown in the Windows network counters associated with Etherent
interface. It is possible to read port statistics in the same way it is done for regular InfiniBand
ports. The information is available by running
vstat -c.
2.1.4 Setting RoCE
» To set the RoCE, please perform the following:
Step 1. Open Device Manager and expand System devices display pane.
Step 2. Right-click the Mellanox ConnectX VPI (MT26428) - PCIe 2.0 5GT/s, IB QDR / 10GigE Net-
work Adapter
entry and left-click Properties.
Step 3. Click the Port Protocol tab and check RoCE check box.
Step 4. Click OK. It's will cause to driver restart
2.1.5 Setting RoCE MTU
Ethernet packet uses the general MTU value whereas the RoCE packet uses the RoCE MTU.
All devices that run the RoCE protocol must have the same MTU, otherwise packets larger than
the minimum MTU are dropped and not transferred.
When RoCE is enabled, you can configure the MTU that can be sent by the RoCE protocol.
• The valid RoCE MTU values are: 256, 512, 1024, 2048
When using MTU 2048, the administrator should configure the switches to support MTU 2048 or
higher.
• The default MTU is 1024
 To set the RoCE MTU, please perform the following:
Step 1. Open Device Manager and expand Network Adapters in the device display pane.
Step 2. Right-click the Mellanox ConnectX 10Gb Ethernet Adapter entry and left-click Properties.
Step 3. Click the Advanced tab and modify the desired properties.
Step 4. Select RoCE Options and click Properties to modify the settings as needed.
Step 5. Click OK
2.2 A Detailed Example of Using InfiniBand over Ethernet (RoCE)
This section provides a step-by-step example of using InfiniBand over Ethernet (RoCE).
2.2.1 Installing and Loading the Driver
The Mellanox WinOF VPI installation installs RoCE as part its package..