On 6/12/2018 12:06 PM, Ruhl, Michael J wrote: > When the netdev device is registered (netdev_register) from > ipoib_add_port(), the first (incorrect) "HW" address is added to the > device MC list: > > link 00:ff:ff:ff:ff:12:60:1b:80:00:00:00:00:00:00:00:00:00:00:01 > ^^^^ (invalid PKEY) Per RFC 4391, format is: | 8 | 4 | 4 | 16 bits | 16 bits | 80 bits | +------ -+----+----+-----------------+---------+-------------------+ |11111111|0001|scop|<IPoIB signature>|< P_Key >| group ID | +--------+----+----+-----------------+---------+-------------------+ so this is PKey 0x8000 for IPv6 (0x601b) multicast group ID 1 which is the "all nodes address". > The PKEY has not been set, so this address always will be wrong. At init time, IBA requires that pkey index 0 has the full default pkey (0x8000) so it probably comes from there. -- 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
