简体繁体 English

SocketCAN和传入数据包控制

[英]SocketCAN and Incoming Packet Control

原文 2018-11-14 18:01:47 6 0 linux/ limit/ traffic/ can-bus/ socketcan

I have an application for linux. 我有一个针对Linux的应用程序。 I am using SocketCAN to talk to the CAN bus. 我正在使用SocketCAN与CAN总线通信。 We are doing this on a Beaglebone Black based device we made ourselves. 我们正在自己制造的基于Beaglebone Black的设备上进行此操作。

We have another device we need to listen to traffic from. 我们需要另一台设备来监听流量。 This device sends a ton of data way faster than we need it or can process it. 该设备以比我们需要或可以处理的速度更快的速度发送大量数据。

I am trying to figure out a good way to slow down the traffic coming from this device to ours over CAN. 我试图找出一种减缓从此设备到CAN的流量的好方法。

I found the document that talks about using traffic control (tc) for linux. 我找到了有关使用Linux的流量控制（tc）的文档。 I have been trying the examples and not seeing any difference in the incoming traffic. 我一直在尝试示例，但看不到传入流量有任何区别。

Everything I have read about this gives examples about limiting the OUTBOUND traffic from an app to the CAN bus. 我已阅读的所有内容都提供了有关限制从应用程序到CAN总线的出站流量的示例。

My question is whether traffic control (tc) can be used to limit incoming traffic to the kernel (and the apps that are listening)? 我的问题是流量控制（tc）是否可用于限制进入内核（以及正在监听的应用程序）的传入流量？

If not, then is there another tool that can be used for this? 如果没有，那么是否还有其他工具可以用于此目的？

I am ok dropping a percentage of packets. 我可以丢弃一定百分比的数据包。 I assume that would have to happen. 我认为那一定会发生。