How do I know if RDMA is enabled?

How do I know if RDMA is enabled?

There are two options to do this: using the service file or using lsmod.

1. Verify that RDMA kernel part is loaded using service file.
2. Verify that RDMA kernel part is loaded using lsmod.
3. Verify that RDMA devices are available.
4. Verify that RDMA devices can be accessed.
5. Send traffic using ibv_*_pingpong.
6. Send traffic using rping.

How do I set up Rdma?

4. Configuring Guest RDMA

1. Install Windows Server 2019.
2. Install the Hyper-V Role and the Data Center Bridging (DCB) feature.
3. Configure QoS (Quality-of-Service), DCB, PFC, ETS.
4. Configure Hyper-V SET (Switch Embedded Team).
5. Test RDMA communication between the physical servers prior configuring the VMs.

How do I update my i40e driver?

If your server uses the Red Hat or SUSE Linux OS, you must download the i40e device driver to install it.

1. Log in to your server.
2. Select Downloads and Drivers.
3. Select Linux as the OS.
4. Select this driver:
5. Select Download.
6. Review and accept the software license agreement.

What is Linux RDMA?

Remote Direct Memory Access (RDMA) is a computer networking technology usually implemented over high-speed, low-latency networks (aka fabrics) which allows for direct access to a remote host’s memory, dramatically reducing latency and CPU overhead.

What is RDMA network adapter?

RDMA is a feature that enables network adapters to transfer data directly between each other without requiring the main processor of the system to be part of that transfer. This results in lower latency and lower processor utilization.

Does RDMA use TCP?

To show the benefits of RDMA, the test uses SMB Direct enabled (RoCE) and disabled (TCP/IP).

What is InfiniBand driver?

InfiniBand is a network architecture that is designed for the large-scale interconnection of computing and I/O nodes through a high-speed switched fabric. To operate InfiniBand on a Sun Blade 8000 Series Modular System, you need an InfiniBand HCA (the ExpressModule) and an InfiniBand software stack.

What is guest RDMA?

With Windows Server 2019 Microsoft introduces Guest RDMA, which allows for RDMA and SMB Direct to work through SR-IOV to the Virtual Machine (VM). It enables a direct network data path through the R-NIC to the VM allowing RDMA to perform its zero copy, low latency, and low CPU magic.

What is i40e driver?

Description. The i40e 10/40 Gigabit Ethernet driver is a multi-threaded, loadable, clonable, GLD-based STREAMS driver supporting the Data Link Provider Interface, dlpi(4P), on Intel XL710 10/40 Gigabit Ethernet controllers.

What is IAVF driver?

DESCRIPTION. The iavf driver provides support for the PCI Virtual Functions from the 700 Series of ethernet devices and newer product families.

Where is RDMA used?

It is particularly useful when analyzing big data, in supercomputing environments that process applications, and for machine learning that requires low latencies and high transfer rates. RDMA is also used between nodes in compute clusters and with latency-sensitive database workloads.

Which 10Gb NDCs support RDMA?

The 10Gb NDC that are validated with the R730 are Broadcom 57800 SFP+, Broadcom 57800 Base-T, Intel X540 Base-T, which all support RDMA. The mellanox ConnectX-3 pcie NIC also supports it. 04-24-2017 02:36 PM The 10Gb NDC that are validated with the R730 are Broadcom 57800 SFP+, Broadcom 57800 Base-T, Intel X540 Base-T, which all support RDMA.

Which server NICs support guest RDMA?

As of this writing every major Server NIC vendor (alphabetically: Broadcom, Cavium-QLogic, Chelsio, Cisco, Intel, and Mellanox) is shipping an RDMA solution. At least three have working Guest RDMA solutions that work with Windows Server 1709.

What is RDMA over Converged Ethernet (RoCE)?

Since the traditional TCP/IP Ethernet connections are CPU intensitive and require extra processing and copying of the data, they can’t meet the current network needs any more. In that context, the RDMA over Converged Ethernet (RoCE) arrives.

How do I enable guest RDMA on Windows Server 1709?

Since the inbox drivers for Windows Server 1709 do not support Guest RDMA, you must get the latest drivers from the network adapter vendor and install them in the guest. Follow the guidance of your network vendor.