DMA firmware tutorial: using RW to collect static TLP

Описание: Static tlp can enable some network cards to be driven, such as 8111. It should be noted that the configuration information of 8111 is stored in bar2, which corresponds to the object controlled by bar_comtrol in the previous video. This should be modified according to the actual situation of your network card. Why do we need to disconnect the network cable before going to collect data? Because we want to collect the TLP of the network card in the disconnected state of the network cable, which is different from plugging in the network cable.