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| author |   Ariel Levkovich <lariel@mellanox.com> | 2019-05-05 17:07:11 +0300 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-05-06 12:51:50 -0300 |
| commit | 3b113a1ec3d4ac7e1e621b77650ac05491f5924a (patch) | |
| tree | a61b9802139d47da545402adfc483ad2216eeb90 /drivers/infiniband/hw/mlx5/mlx5_ib.h | |
| parent | RDMA/rdmavt: Catch use-after-free access of AH structures (diff) | |
| download | linux-dev-3b113a1ec3d4ac7e1e621b77650ac05491f5924a.tar.xz linux-dev-3b113a1ec3d4ac7e1e621b77650ac05491f5924a.zip | |
IB/mlx5: Support device memory type attribute
This patch intoruduces a new mlx5_ib driver attribute to the DM allocation
method - the DM type.
In order to allow addition of new types in downstream patches this patch
also refactors the allocation, deallocation and registration handlers to
consider the requested type and perform the necessary actions according to
it.
Since not all future device memory types will be such that are mapped to
user memory, the mandatory page index output attribute is modified to be
optional.
Signed-off-by: Ariel Levkovich <lariel@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Mark Bloch <markb@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 | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 55b8bdb402b6..714c360dc9fb 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -48,6 +48,7 @@ #include <rdma/mlx5-abi.h> #include <rdma/uverbs_ioctl.h> #include <rdma/mlx5_user_ioctl_cmds.h> +#include <rdma/mlx5_user_ioctl_verbs.h> #include "srq.h" @@ -554,15 +555,17 @@ enum mlx5_ib_mtt_access_flags { struct mlx5_ib_dm { struct ib_dm ibdm; phys_addr_t dev_addr; + u32 type; + size_t size; }; #define MLX5_IB_MTT_PRESENT (MLX5_IB_MTT_READ | MLX5_IB_MTT_WRITE) -#define MLX5_IB_DM_ALLOWED_ACCESS (IB_ACCESS_LOCAL_WRITE |\ - IB_ACCESS_REMOTE_WRITE |\ - IB_ACCESS_REMOTE_READ |\ - IB_ACCESS_REMOTE_ATOMIC |\ - IB_ZERO_BASED) +#define MLX5_IB_DM_MEMIC_ALLOWED_ACCESS (IB_ACCESS_LOCAL_WRITE |\ + IB_ACCESS_REMOTE_WRITE |\ + IB_ACCESS_REMOTE_READ |\ + IB_ACCESS_REMOTE_ATOMIC |\ + IB_ZERO_BASED) struct mlx5_ib_mr { struct ib_mr ibmr; @@ -843,9 +846,13 @@ struct mlx5_ib_flow_action { }; }; -struct mlx5_memic { +struct mlx5_dm { struct mlx5_core_dev *dev; - spinlock_t memic_lock; + /* This lock is used to protect the access to the shared + * allocation map when concurrent requests by different + * processes are handled. + */ + spinlock_t lock; DECLARE_BITMAP(memic_alloc_pages, MLX5_MAX_MEMIC_PAGES); }; @@ -949,7 +956,7 @@ struct mlx5_ib_dev { u8 umr_fence; struct list_head ib_dev_list; u64 sys_image_guid; - struct mlx5_memic memic; + struct mlx5_dm dm; u16 devx_whitelist_uid; struct mlx5_srq_table srq_table; struct mlx5_async_ctx async_ctx; |