baidu:网卡多队 DMA
http://wenx05124561.blog.163.com/blog/static/1240008052011111985235179/
http://blog.csdn.net/jw212/article/details/6738486
http://wenku.baidu.com/link?url=vxMj8RsoytzZy3NKp7QPI7X_h_oo3ZLchiZ432ZqXFnm0QbQIQBDF1DKsqsMq-Pvqblz5VBLToC6OZMGgAqqyWwbKhbVbRZ0R3sE_M1hXO3
http://blog.sina.com.cn/s/blog_640bcc3901010ays.html
http://blog.csdn.net/dog250/article/details/5303416
http://wenx05124561.blog.163.com/blog/static/1240008052011111985235179/
http://www.cnblogs.com/lambda107/archive/2010/08/02/1790184.html
http://www.chinaunix.net/old_jh/4/1112413.html
http://bbs.chinaunix.net/thread-2141004-1-1.html
http://wenku.baidu.com/link?url=YssTiUh7sKDLq25i_tXjy5cESI3VgY1JFqYYhjQ3pYEmLO9JbaJAjBfuskF5wr_gEWYnX2OdeCB4A6jl1ZKpOAHS_umVbqXYMIg__fm4sx_
http://wenku.baidu.com/view/dc17783731126edb6f1a1021.html
http://blog.csdn.net/yukuninfoaxiom/article/details/6223283