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IB/mlx5: Support 4k UAR for libmlx5

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Add fields to structs to convey to kernel an indication whether the
library supports multi UARs per page and return to the library the size
of a UAR based on the queried value.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Eli Cohen
2017-01-03 23:55:27 +02:00
committed by Saeed Mahameed
parent b037c29a80
commit 30aa60b3bd
9 changed files with 42 additions and 100 deletions
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7
include/uapi/rdma/mlx5-abi.h
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@@ -65,6 +65,10 @@ struct mlx5_ib_alloc_ucontext_req {
__u32 num_low_latency_bfregs;
};
enum mlx5_lib_caps {
MLX5_LIB_CAP_4K_UAR = (u64)1 << 0,
};
struct mlx5_ib_alloc_ucontext_req_v2 {
__u32 total_num_bfregs;
__u32 num_low_latency_bfregs;
@@ -74,6 +78,7 @@ struct mlx5_ib_alloc_ucontext_req_v2 {
__u8 reserved0;
__u16 reserved1;
__u32 reserved2;
__u64 lib_caps;
};
enum mlx5_ib_alloc_ucontext_resp_mask {
@@ -103,6 +108,8 @@ struct mlx5_ib_alloc_ucontext_resp {
__u8 cmds_supp_uhw;
__u16 reserved2;
__u64 hca_core_clock_offset;
__u32 log_uar_size;
__u32 num_uars_per_page;
};
struct mlx5_ib_alloc_pd_resp {