FlexIO Samples
NVIDIA FlexIO Sample Guide
This guide provides FlexIO sample implementation on top of NVIDIA® BlueField® DPU.
NVIDIA® BlueField®-3 DPU features a high-speed hardware data path accelerator (DPA). This allows accelerating critical data path flow.
This document describes FlexIO samples based on the FlexIO SDK. These samples illustrate how to use the FlexIO API to configure and execute code on the DPA.
For more information about FlexIO driver, refer to NVIDIA DOCA FlexIO SDK Programming Guide.
- Refer to the following documents:
- NVIDIA DOCA Installation Guide for Linux for details on how to install BlueField-related software.
- NVIDIA DOCA Troubleshooting Guide for any issue you may encounter with the installation, compilation, or execution of DOCA samples.
- To build a given sample:
cd /opt/mellanox/doca/samples/<library_name>/<sample_name> meson build ninja -C build
Note:The binary
flexio_<sample_name>
will be created under./build/
. - Sample (e.g.,
flexio_rpc
) usage:Usage: flexio_rpc [DOCA Flags] DOCA Flags: -h, --help Print a help synopsis -v, --version Print program version information -l, --log-level Set the log level for the program <CRITICAL=20, ERROR=30, WARNING=40, INFO=50, DEBUG=60>
-h
option:./build/flexio_<sample_name> -h
5.1. FlexIO RPC
This sample illustrates how to invoke a function on the DPA. The sample logic include:
- Creating FlexIO process.
- Calling the remote function
flexio_rpc_calculate_sum
on the DPA. - Printing return value to the standard output.
References:
- /opt/mellanox/doca/samples/flexio/flexio_rpc/device/flexio_rpc_device.c
- /opt/mellanox/doca/samples/flexio/flexio_rpc/host/flexio_rpc_sample.c
- /opt/mellanox/doca/samples/flexio/flexio_rpc/host/meson.build
- /opt/mellanox/doca/samples/flexio/flexio_rpc/flexio_rpc_main.c
- /opt/mellanox/doca/samples/flexio/flexio_rpc/meson.build
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