On Wed, Feb 25, 2015 at 10:54:51AM +0100, Jog Lie wrote: > Hello, > > I am not sure to understand the mechanism behind dpdk concerning the context > switches. > I have two user space applications that need access to the NIC according to > incoming port rules (port 80 and port 443). > > How to be sure that DPDK spreads the load to the right application ? > > Will 2 dpdk instances be needed (one per app) -> two incoming packets > analysis to "know" if the packet should be forwarded to > the user space process ? Which would basically be the same thing as > inefficient promiscuous mode. > > i don't understand that "filtering" point. > > Could you please clarify ? > > Thanks > > --? > Jog
Hi Jog, The missing link in connecting applications which receive packets from port 80/443 and DPDK itself is the TCP/IP stack in use. DPDK itself does not include any stack, so you'll need to select a stack to use with your applications. The mechanics of how apps talk to ports and how traffic gets filtered to them is largely the stack's responsibility. /Bruce
