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mlx4_core: Don't set MTT address in dMPT entries with PA set

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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>
This commit is contained in:
Jack Morgenstein 2007-06-07 23:24:38 -07:00 committed by Roland Dreier
parent fe40900f40
commit b2d9308ae4
1 changed files with 5 additions and 3 deletions
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8
drivers/net/mlx4/mr.c
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@ -324,15 +324,17 @@ int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr)
MLX4_MPT_FLAG_MIO | MLX4_MPT_FLAG_MIO |
MLX4_MPT_FLAG_REGION | MLX4_MPT_FLAG_REGION |
mr->access); 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->key = cpu_to_be32(key_to_hw_index(mr->key));
mpt_entry->pd = cpu_to_be32(mr->pd); mpt_entry->pd = cpu_to_be32(mr->pd);
mpt_entry->start = cpu_to_be64(mr->iova); mpt_entry->start = cpu_to_be64(mr->iova);
mpt_entry->length = cpu_to_be64(mr->size); mpt_entry->length = cpu_to_be64(mr->size);
mpt_entry->entity_size = cpu_to_be32(mr->mtt.page_shift); 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, err = mlx4_SW2HW_MPT(dev, mailbox,
key_to_hw_index(mr->key) & (dev->caps.num_mpts - 1)); key_to_hw_index(mr->key) & (dev->caps.num_mpts - 1));