7b59f0f951
Current implementation for MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK is not supported when link layer is Ethernet. This patch will add counter based implementation for multicast loopback prevention. HW can drop multicast loopback packets if sender QP counter index is equal to receiver QP counter index. If qp flag MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK is set and link layer is Ethernet, create a new counter and attach it to the QP so it will continue receiving multicast loopback traffic but it's own. The decision if to create a new counter is being made at the qp modification to RTR after the QP's port is set. When QP is destroyed or moved back to reset state, delete the counter. Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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