dpif-linux composes a request to query the kernel flow table, in the form of a Netlink message, sends the message to the kernel, receives the response also in the form of a Netlink message, translates that into the format expected by the caller, and returns it.
On Fri, Apr 06, 2012 at 10:58:10PM +0200, LIU Binghan wrote: > Yes, I really try to read it , but there is not any code about hash table > which likes in datapath. I think this function is used to process the request > from datapath, and send back new flow information to expand the flow table in > the datapath, right? so where is the information about flow tables in this > function, i really confused. > On 2012-4-5, at 下午4:46, Ben Pfaff wrote: > > > [add original poster] > > > > On Thu, Apr 05, 2012 at 07:45:15AM -0700, Ben Pfaff wrote: > >> On Thu, Apr 05, 2012 at 02:32:55PM +0200, LIU Binghan wrote: > >>> After datapath provided flow key to dpif-linux through netlink, how > >>> dpif-linux queries the flow table? > >>> More specificlly, how does the flow_get function get the 'reply' which > >>> contains the action. I am getting stuck here. > >> > >> Why are you stuck? Why don't you keep reading into > >> dpif_linux_flow_get__() and the functions it calls, and so on? What's > >> the hard part? > _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
