diff options
| author | Haggai Eran <haggaie@mellanox.com> | 2014-12-11 17:04:11 +0200 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2014-12-15 18:13:35 -0800 |
| commit | 968e78dd96443e2cc963c493070574778805e76a (patch) | |
| tree | ac394ba85a24548c24c2c3f1a41093c1d0fac642 /drivers/infiniband/hw/mlx5/mlx5_ib.h | |
| parent | 21af2c3ebfd551660ae0016ecc5bc9afcc24f116 (diff) | |
| download | blackbird-op-linux-968e78dd96443e2cc963c493070574778805e76a.tar.gz blackbird-op-linux-968e78dd96443e2cc963c493070574778805e76a.zip | |
IB/mlx5: Enhance UMR support to allow partial page table update
The current UMR interface doesn't allow partial updates to a memory
region's page tables. This patch changes the interface to allow that.
It also changes the way the UMR operation validates the memory
region's state. When set, IB_SEND_UMR_FAIL_IF_FREE will cause the UMR
operation to fail if the MKEY is in the free state. When it is
unchecked the operation will check that it isn't in the free state.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mlx5_ib.h')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 29da55222070..53d19e6e69a4 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -111,6 +111,8 @@ struct mlx5_ib_pd { */ #define MLX5_IB_SEND_UMR_UNREG IB_SEND_RESERVED_START +#define MLX5_IB_SEND_UMR_FAIL_IF_FREE (IB_SEND_RESERVED_START << 1) +#define MLX5_IB_SEND_UMR_UPDATE_MTT (IB_SEND_RESERVED_START << 2) #define MLX5_IB_QPT_REG_UMR IB_QPT_RESERVED1 #define MLX5_IB_WR_UMR IB_WR_RESERVED1 @@ -206,6 +208,19 @@ enum mlx5_ib_qp_flags { MLX5_IB_QP_SIGNATURE_HANDLING = 1 << 1, }; +struct mlx5_umr_wr { + union { + u64 virt_addr; + u64 offset; + } target; + struct ib_pd *pd; + unsigned int page_shift; + unsigned int npages; + u32 length; + int access_flags; + u32 mkey; +}; + struct mlx5_shared_mr_info { int mr_id; struct ib_umem *umem; |
