http://mypaperreading.blogspot.kr/2013/04/dca-direct-cache-access.htmlhttp://timetobleed.com/enabling-bios-options-on-a-live-server-with-no-rebooting/
https://www.myricom.com/software/myri10ge/408-what-does-the-kernel-message-dca-add-requester-failed-indicate.html
http://www.slideshare.net/hisaki/x86-hardware-for-packet-processing
