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IB/mlx4: Add contig support for control objects

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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>
This commit is contained in:
Guy Levi
2017-11-02 15:22:25 +02:00
committed by Doug Ledford
parent 9901abf583
commit ed8637d361
4 changed files with 16 additions and 7 deletions
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8
drivers/infiniband/hw/mlx4/cq.c
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@@ -140,14 +140,18 @@ static int mlx4_ib_get_cq_umem(struct mlx4_ib_dev *dev, struct ib_ucontext *cont
{
int err;
int cqe_size = dev->dev->caps.cqe_size;
int shift;
int n;
*umem = ib_umem_get(context, buf_addr, cqe * cqe_size,
IB_ACCESS_LOCAL_WRITE, 1);
if (IS_ERR(*umem))
return PTR_ERR(*umem);
err = mlx4_mtt_init(dev->dev, ib_umem_page_count(*umem),
(*umem)->page_shift, &buf->mtt);
n = ib_umem_page_count(*umem);
shift = mlx4_ib_umem_calc_optimal_mtt_size(*umem, 0, &n);
err = mlx4_mtt_init(dev->dev, n, shift, &buf->mtt);
if (err)
goto err_buf;