diff options
| author |   Jason Gunthorpe <jgg@mellanox.com> | 2019-10-09 13:09:22 -0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-10-28 16:41:13 -0300 |
| commit | 50211ec9443ff2e16db43f691dfcc0ef435cf45d (patch) | |
| tree | 18b108e808eec991fc2677aa30aa702aee6ca301 /drivers/infiniband/hw/mlx5/mlx5_ib.h | |
| parent | RDMA/mlx5: Use SRCU properly in ODP prefetch (diff) | |
| download | linux-dev-50211ec9443ff2e16db43f691dfcc0ef435cf45d.tar.xz linux-dev-50211ec9443ff2e16db43f691dfcc0ef435cf45d.zip | |
RDMA/mlx5: Split sig_err MR data into its own xarray
The locking model for signature is completely different than ODP, do not
share the same xarray that relies on SRCU locking to support ODP.
Simply store the active mlx5_core_sig_ctx's in an xarray when signature
MRs are created and rely on trivial xarray locking to serialize
everything.
The overhead of storing only a handful of SIG related MRs is going to be
much less than an xarray full of every mkey.
Link: https://lore.kernel.org/r/20191009160934.3143-3-jgg@ziepe.ca
Reviewed-by: Artemy Kovalyov <artemyko@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@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 | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 1a98ee2e01c4..f4ce58354544 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -999,6 +999,8 @@ struct mlx5_ib_dev { struct mlx5_srq_table srq_table; struct mlx5_async_ctx async_ctx; struct mlx5_devx_event_table devx_event_table; + + struct xarray sig_mrs; }; static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq) |