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: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/net/mlx4/mr.c b/drivers/net/mlx4/mr.c
index b33864d..d0808fa 100644
--- a/drivers/net/mlx4/mr.c
+++ b/drivers/net/mlx4/mr.c
@@ -324,15 +324,17 @@
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);
- mpt_entry->mtt_seg = cpu_to_be64(mlx4_mtt_addr(dev, &mr->mtt));
+ 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,
key_to_hw_index(mr->key) & (dev->caps.num_mpts - 1));