start from kernel/crypto/tcrypt.c which is the test case of module crypto of linux kernel.
AUTOSAR TCPIP
okay, first of all, we should know the basic frame format of an Ethernet Frame, the PDF file from baidu do introuduce it very clearly. And as it was complex, it was not possible for me to implement it, so I found out the ARCCORE 4.2 implementation of TCPIP stack based on LWIP.
aslinux yocto
Nowdays, yocto has becomes very famous for liunx based system distribution, below is an introduction from the net.
aslinux virtio rpmsg
Okay, today on the way to the book store to buy a Japenese study book, I came up a thought that how to study virtio/rpmsg on qemu though without a real board with multi-core(yes, I know with qemu-tz it was possible, but it was too complicated for me), that is a simulation of 2 drivers, one for linux side virtio and the other one still run as a linux driver but with simulation behavior of the remote processor of the linux, generally it behaves like OMAP M3 core. As in real world such as OMAP CPU, it was the ISR used to notify the event between the 2 cores, so in the simulation world, each of the driver needs a thread and a sempahore to simulate the ISR.