On 09/11/2015 02:21 PM, Jason Gunthorpe wrote: > On Fri, Sep 11, 2015 at 09:40:25AM -0500, Christoph Lameter wrote: >> On Thu, 10 Sep 2015, Doug Ledford wrote: >> >>> + * 1) ifdown/ifup >>> + * 2) a regular mcast join/leave happens and we run >>> + * ipoib_mcast_restart_task >>> + * 3) a REREGISTER event comes in from the SM >>> + * 4) any other event that might cause a mcast flush >> >> Could we have a timeout and leave the multicast group on process >> exit? > > At a minimum, when the socket that did the send closes the send-only > could be de-refed.. If we kept a ref count, but we don't. Tracking this is not a small change. > But really send-only in IB is very similar to neighbour discovery, and > should work the same, with a timer, etc. In my mind it would be ideal > to even add them to the ND table, if the core would support that.. > > Jason > -- > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Doug Ledford <dledford@xxxxxxxxxx> GPG KeyID: 0E572FDD
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