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| author |   Guy Levi <guyle@mellanox.com> | 2018-11-26 08:15:39 +0200 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2018-11-29 17:12:13 -0700 |
| commit | 20e5a59b2e64a01f8e0957727887564a4d004970 (patch) | |
| tree | 5257a694c12f2e2c2963f81795f1348fdf843bcd /drivers/infiniband/hw/mlx5/mlx5_ib.h | |
| parent | rxe: IB_WR_REG_MR does not capture MR's iova field (diff) | |
| download | linux-dev-20e5a59b2e64a01f8e0957727887564a4d004970.tar.xz linux-dev-20e5a59b2e64a01f8e0957727887564a4d004970.zip | |
IB/mlx5: Use fragmented SRQ's buffer for in-kernel users
The current implementation of create SRQ requires contiguous memory, such
a requirement is problematic once the memory is fragmented or the system
is low in memory, it causes failures in dma_zalloc_coherent().
This patch takes the advantage of the new mlx5_core API which allocates a
fragmented buffer, and makes the SRQ creation much more resilient to
memory fragmentation. Data-path code was adapted to the fact that WQEs can
cross buffers.
Signed-off-by: Guy Levi <guyle@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mlx5_ib.h')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index a2b35a1a5031..caed1fe76102 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -523,6 +523,7 @@ struct mlx5_ib_srq { struct mlx5_core_srq msrq; struct mlx5_frag_buf buf; struct mlx5_db db; + struct mlx5_frag_buf_ctrl fbc; u64 *wrid; /* protect SRQ hanlding */ |