On Thu, 2005-06-09 at 12:13, Roland Dreier wrote: > I take that back. I believe the code is correct as it stands. There > are two MTU values we keep track of: admin_mtu, requested by the user, > and mcast_mtu, calculated from the link MTU. We use the lower of the > two values. This allows the user to set an MTU and not have the > setting lost if the broadcast multicast join completes afterwards.
Yes, the multicast MTU could further trim this down but the admin MTU appears to be currently capped at IPOIB_PACKET_SIZE - IPOIB_ENCAP_LEN. That's OK for a 2K link MTU but if the link were negotiated at 4K MTU, shouldn't this be allowed to be larger if requested ? -- Hal _______________________________________________ openib-general mailing list [email protected] http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
