mlxsw: spectrum: Disable MC_DMAC check in hardware pipeline

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The check drops packets if they need to be routed and their multicast
MAC mismatched to their multicast destination IP.

For IPV4:
DMAC is mismatched if it is different from {01-00-5E-0 (25 bits),
DIP[22:0]}

For IPV6:
DMAC is mismatched if it is different from {33-33-0 (16 bits),
DIP[31:0]}

Disable the check since the kernel forwards such packets and does not
drop them.

Signed-off-by: Amit Cohen <amitc@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

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Amit Cohen 2020-01-05 18:20:52 +02:00 • committed by David S. Miller

parent 383dbf70d9

commit 359ec56679

2 changed files with 3 additions and 0 deletions

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2

drivers/net/ethernet/mellanox/mlxsw/spectrum.c

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1

drivers/net/ethernet/mellanox/mlxsw/trap.h

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