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Commit b2d9308a authored by Jack Morgenstein's avatar Jack Morgenstein Committed by Roland Dreier
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mlx4_core: Don't set MTT address in dMPT entries with PA set 



If a dMPT entry has the PA flag (direct physical address) set, then
the (unused) MTT base address field has to be set to 0.

Signed-off-by: default avatarJack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent fe40900f

drivers/net/mlx4/mr.c

+5 −3
Original line number Diff line number Diff line
@@ -324,14 +324,16 @@ int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr) 
				       MLX4_MPT_FLAG_MIO	 |

				       MLX4_MPT_FLAG_REGION	 |

				       mr->access);

	if (mr->mtt.order < 0)

		mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_PHYSICAL);



	mpt_entry->key	       = cpu_to_be32(key_to_hw_index(mr->key));

	mpt_entry->pd	       = cpu_to_be32(mr->pd);

	mpt_entry->start       = cpu_to_be64(mr->iova);

	mpt_entry->length      = cpu_to_be64(mr->size);

	mpt_entry->entity_size = cpu_to_be32(mr->mtt.page_shift);

	if (mr->mtt.order < 0) {

		mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_PHYSICAL);

		mpt_entry->mtt_seg = 0;

	} else

		mpt_entry->mtt_seg = cpu_to_be64(mlx4_mtt_addr(dev, &mr->mtt));



	err = mlx4_SW2HW_MPT(dev, mailbox,