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| author |   Jason Gunthorpe <jgg@mellanox.com> | 2019-10-22 14:27:25 -0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-10-22 14:27:25 -0300 |
| commit | a2aca4d7f0f8ab98ba1e0db484576fc827568689 (patch) | |
| tree | 12258cf10d134588e741bf224f1b439de7af80af /drivers/infiniband/hw/mlx5/main.c | |
| parent | RDMA/siw: Fix SQ/RQ drain logic (diff) | |
| parent | RDMA/mlx5: Add capability for max sge to get optimized performance (diff) | |
| download | linux-dev-a2aca4d7f0f8ab98ba1e0db484576fc827568689.tar.xz linux-dev-a2aca4d7f0f8ab98ba1e0db484576fc827568689.zip | |
Merge branch 'mlx5-rd-sgl' into rdma.git for-next
From Yamin Friedman:
====================
This series from Yamin implements long standing "TODO" existed in rw.c. It
allows the driver to specify a cut-over point where it is faster to build
a lkey MR rather than do a large SGL for RDMA READ operations.
mlx5 HW gets a notable performane boost by switching to MRs.
====================
Based on the mlx5-next branch from
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux for
dependencies
* branch 'mlx5-rd-sgl': (3 commits)
RDMA/mlx5: Add capability for max sge to get optimized performance
RDMA/rw: Support threshold for registration vs scattering to local pages
net/mlx5: Expose optimal performance scatter entries capability
Diffstat (limited to 'drivers/infiniband/hw/mlx5/main.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index b95c2b05f682..1106a2238b14 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -1011,6 +1011,8 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, 1 << MLX5_CAP_GEN(mdev, log_max_klm_list_size); props->max_pi_fast_reg_page_list_len = props->max_fast_reg_page_list_len / 2; + props->max_sgl_rd = + MLX5_CAP_GEN(mdev, max_sgl_for_optimized_performance); get_atomic_caps_qp(dev, props); props->masked_atomic_cap = IB_ATOMIC_NONE; props->max_mcast_grp = 1 << MLX5_CAP_GEN(mdev, log_max_mcg); |