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| author | Guy Levi <guyle@mellanox.com> | 2017-11-02 15:22:25 +0200 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-11-13 14:42:04 -0500 |
| commit | ed8637d3615b38bd4d12ba5eb8ee6a0c3888e754 (patch) | |
| tree | aba1750f891b8979c86e506c77977744ab0a4979 /drivers/infiniband/hw/mlx4/qp.c | |
| parent | 9901abf583683e58f95f822da63cd0e32e7b2f0a (diff) | |
| download | linux-ed8637d3615b38bd4d12ba5eb8ee6a0c3888e754.tar.gz linux-ed8637d3615b38bd4d12ba5eb8ee6a0c3888e754.tar.bz2 linux-ed8637d3615b38bd4d12ba5eb8ee6a0c3888e754.zip | |
IB/mlx4: Add contig support for control objects
Taking advantage of the optimization which was introduced in previous
commit ("IB/mlx4: Use optimal numbers of MTT entries") to optimize the
MTT usage for QP and CQ.
Signed-off-by: Guy Levi <guyle@mellanox.com>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx4/qp.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/qp.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 26f3345948e2..f807a6278d44 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -1038,6 +1038,8 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd, struct mlx4_ib_create_wq wq; } ucmd; size_t copy_len; + int shift; + int n; copy_len = (src == MLX4_IB_QP_SRC) ? sizeof(struct mlx4_ib_create_qp) : @@ -1100,8 +1102,10 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd, goto err; } - err = mlx4_mtt_init(dev->dev, ib_umem_page_count(qp->umem), - qp->umem->page_shift, &qp->mtt); + n = ib_umem_page_count(qp->umem); + shift = mlx4_ib_umem_calc_optimal_mtt_size(qp->umem, 0, &n); + err = mlx4_mtt_init(dev->dev, n, shift, &qp->mtt); + if (err) goto err_buf; |