Dear @HangHu,
Welcome to the forum! I
You can find a lot of useful information on this forum, especially if you use its search function ( 
). For example, a simple search on the “tofino” keyword will immediately produce this post , which contains the necessary recommendations.
Also, if you you haven’t done it already, I’d highly recommend you attend Intel Connectivity Academy by P4ica courses.
Happy hacking,
Vladimir