diff options
| author |   Amir Vadai <amirv@mellanox.com> | 2015-05-28 22:28:38 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-05-30 18:22:37 -0700 |
| commit | 64ffaa2159b752e6c263dc57eaaaed7367d37493 (patch) | |
| tree | ad02abcf7cc735ad2e9037cab1870ba9a2281c5a /drivers/infiniband/hw | |
| parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue (diff) | |
| download | linux-dev-64ffaa2159b752e6c263dc57eaaaed7367d37493.tar.xz linux-dev-64ffaa2159b752e6c263dc57eaaaed7367d37493.zip | |
net/mlx5_core,mlx5_ib: Do not use vmap() on coherent memory
As David Daney pointed in mlx4_core driver [1], mlx5_core is also
misusing the DMA-API.
This patch is removing the code that vmap() memory allocated by
dma_alloc_coherent().
After this patch, users of this drivers might fail allocating resources
on memory fragmeneted systems. This will be fixed later on.
[1] - https://patchwork.ozlabs.org/patch/458531/
CC: David Daney <david.daney@cavium.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/infiniband/hw')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/cq.c | 3 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx5/qp.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx5/srq.c | 2 |
3 files changed, 3 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index 2ee6b1051975..4e88b18cf62e 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -590,8 +590,7 @@ static int alloc_cq_buf(struct mlx5_ib_dev *dev, struct mlx5_ib_cq_buf *buf, { int err; - err = mlx5_buf_alloc(dev->mdev, nent * cqe_size, - PAGE_SIZE * 2, &buf->buf); + err = mlx5_buf_alloc(dev->mdev, nent * cqe_size, &buf->buf); if (err) return err; diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index d35f62d4f4c5..426eb88dfa49 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -768,7 +768,7 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev, qp->sq.offset = qp->rq.wqe_cnt << qp->rq.wqe_shift; qp->buf_size = err + (qp->rq.wqe_cnt << qp->rq.wqe_shift); - err = mlx5_buf_alloc(dev->mdev, qp->buf_size, PAGE_SIZE * 2, &qp->buf); + err = mlx5_buf_alloc(dev->mdev, qp->buf_size, &qp->buf); if (err) { mlx5_ib_dbg(dev, "err %d\n", err); goto err_uuar; diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c index 02d77a29764d..4242e1ded868 100644 --- a/drivers/infiniband/hw/mlx5/srq.c +++ b/drivers/infiniband/hw/mlx5/srq.c @@ -165,7 +165,7 @@ static int create_srq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_srq *srq, return err; } - if (mlx5_buf_alloc(dev->mdev, buf_size, PAGE_SIZE * 2, &srq->buf)) { + if (mlx5_buf_alloc(dev->mdev, buf_size, &srq->buf)) { mlx5_ib_dbg(dev, "buf alloc failed\n"); err = -ENOMEM; goto err_db; |