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When two netdev have same link local addresses (such as vlan and non
vlan), two rdma cm listen id should be able to bind to following different
addresses.
listener-1: addr=lla, scope_id=A, port=X
listener-2: addr=lla, scope_id=B, port=X
However while comparing the addresses only addr and port are considered,
due to which 2nd listener fails to listen.
In below example of two listeners, 2nd listener is failing with address in
use error.
$ rping -sv -a fe80::268a:7ff:feb3:d113%ens2f1 -p 4545&
$ rping -sv -a fe80::268a:7ff:feb3:d113%ens2f1.200 -p 4545
rdma_bind_addr: Address already in use
To overcome this, consider the scope_ids as well which forms the accurate
IPv6 link local address.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
5d7ed2f27b