On Tue, 2009-04-14 at 19:19 -0700, Mike Christie wrote: > Hey offload guys, > > If we are using a offload card, then iface_set_param will match the > iface info to a scsi_host and pass that info down to setup the net > settings of the port (currently we just set the ip address). When we > create the tcp/ip connection by calling ep_connect, we currently just go > by the routing table info. > > I think there are two problems with this. > > 1. Some drivers do not have access to a routing table. Some drivers like > qla4xxx do not even know about other ports. > > 2. If you have two initiator ports on the same subnet, the user may have > set things up so that session1 was supposed to be run through port1. and > session2 was supposed to be run through port2. It looks like we could > end with both sessions going through one of the ports.
If the user specifies a particular iface to use in addition to the transport, I think we should use the specified HBA port, right? > > Also how do you edit the routing table for the offload cards? You cannot > use normal net tools like route can you? We rely on the net stack to tell us which netdev to use to reach the target, if no particular iface is selected. > > 3. If we set up hostA in the iface_set_param step, but then the routing > info leads us to hostB, we are stuck. Again, if a specific iface for an HBA is selected, it should override any routing information we have. > > > I did the attached patches to fix this. Basically we just pass down the > scsi host we want to go through. Well, ok I began to fix this :) For > qla4xxx or serverengines I think this will work fine. > > For bnx2i and cxgb3i, I am not sure. See the TODO and note in cxgb3i in > kern-ep-connect-through-host.patch. bnx2i guys, you guys do somehting > similar so will this work? In ep_connect can I control which host/port > to use? > > The patches were made against my iscsi tress. The kernel one was made > over the iscsi brandh and that was just updated so you might want to > reclone. > > The userspace one was made over the open-iscsi git tree head. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to open-iscsi+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/open-iscsi -~----------~----~----~----~------~----~------~--~---
