1 unstable release
0.3.0 | Jun 1, 2022 |
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0.2.0 |
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0.1.3 |
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#370 in #low-level
225KB
6K
SLoC
rdma
Low-level RDMA API.
Environment
This crate requires the latest rdma-core installation.
Please make sure the following commands work:
$ pkg-config --modversion libibverbs
1.14.41.0
$ pkg-config --modversion librdmacm
1.3.41.0
The output also shows the minimum required versions.
Develop
Examples
Add a Soft-RoCE device:
sudo rdma link add rxe0 type rxe netdev ens33
rxe0
is the RDMA device name. You can name it whatever you want. ens33
is the name of a network device. The name of the network device may be different. You can see it by running command ifconfig
.
There is a tutorial for Chinese users: https://zhuanlan.zhihu.com/p/361740115.
Please install the tool just if you don't have it.
Install the examples:
just install-examples
Run the example rdma-devices
:
$ rdma-devices
| name | guid |
| ---- | ---------------- |
| rxe0 | 26418cfffe021df9 |
Run the example rdma-pingpong
:
-
RC service
- server side
rdma-pingpong rc
- client side
rdma-pingpong rc 127.0.0.1
- server side
-
UD service
- server side
rdma-pingpong ud
- client side
rdma-pingpong ud 127.0.0.1
- server side
Run the benchmarks:
just bench-pingpong-rc
just bench-pingpong-ud
Run the example rdma-async
:
rdma-async-rpc
Memory Management
All the APIs related with raw memory are unsafe.
We are exploring how to provide a safe and easy way to manage memory in RDMA.
The example rdma-async may give you inspiration.
Resource Management
The RDMA resources are managed by reference counting.
The graph below shows the relations between resources.
Dependencies
~0.6–8MB
~55K SLoC