Merge branch 'mlx5_ib_qp_refactor_1' into rdma.git for-next

Merge branch 'mlx5_ib_qp_refactor_1' into rdma.git for-next

Leon Romanovsky says:

====================
This is first part of series which tries to return some sanity to
mlx5_ib_create_qp() function. Such refactoring is required to make
extension of that function with less worries of breaking driver.

Extra goal of such refactoring is to ensure that QP is allocated at the
beginning of function and released at the end. It will allow us to move QP
allocation to be under IB/core responsibility.
====================

Based on the mlx5-next branch at
 git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Due to dependencies

* branch 'mlx5_ib_qp_refactor_1': (66 commits)
  RDMA/mlx5: Process all vendor flags in one place
  RDMA/mlx5: Return all configured create flags through query QP
  RDMA/mlx5: Change scatter CQE flag to be set like other vendor flags
  RDMA/mlx5: Use flags_en mechanism to mark QP created with WQE signature
  RDMA/mlx5: Process create QP flags in one place
  RDMA/mlx5: Delete create QP flags obfuscation
  RDMA/mlx5: Initial separation of RAW_PACKET QP from common flow
  RDMA/mlx5: Remove second copy from user for non RSS RAW QPs
  RDMA/mlx5: Move DRIVER QP flags check into separate function
  RDMA/mlx5: Update all DRIVER QP places to use QP subtype
  RDMA/mlx5: Split scatter CQE configuration for DCT QP
  RDMA/mlx5: Separate create QP flows to be based on type
  RDMA/mlx5: Set QP subtype immediately when it is known
  RDMA/mlx5: Avoid setting redundant NULL for XRC QPs
  RDMA/mlx5: Prepare QP allocation for future removal
  RDMA/mlx5: Perform check if QP creation flow is valid
  RDMA/mlx5: Delete impossible GSI port check
  RDMA/mlx5: Organize QP types checks in one place

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>