IB/core: Set RoCEv2 MGID according to spec

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RoCEv2 Annex states that for RoCEv2 over IPv4, the corresponding
IPv4 address is encoded into the GID according to the following rule:
GID= :ffff:<IPv4 address>

Remove the 0xff0e prefix for RoCEv2 packets with IPv4 and leave it
zeroed and change rdma_is_multicast_addr() to consider the new logic.

Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Reviewed-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>

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Noa Osherovich 2017-06-12 11:14:03 +03:00 • committed by Doug Ledford

parent 5236333592

commit be1d325a33

3 changed files with 20 additions and 11 deletions

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13

drivers/infiniband/core/cma.c

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10

drivers/infiniband/core/verbs.c

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8

include/rdma/ib_addr.h

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