From 18e568c390c61682e747178f136bcbc45c707882 Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Sun, 12 Nov 2017 15:15:10 +0200 Subject: net/mlx5: Hairpin pair core object setup Low level code to setup hairpin pair core object, deals with: - create hairpin RQs/SQs - destroy hairpin RQs/SQs - modifying hairpin RQs/SQs - pairing (rst2rdy) and unpairing (rdy2rst) Unlike conventional RQs/SQs, the memory used for the packet and descriptor buffers is allocated by the firmware and not the driver. The driver sets the overall data size (log). Signed-off-by: Or Gerlitz Signed-off-by: Saeed Mahameed --- include/linux/mlx5/transobj.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mlx5/transobj.h b/include/linux/mlx5/transobj.h index 88441f5ece25..a228310c1968 100644 --- a/include/linux/mlx5/transobj.h +++ b/include/linux/mlx5/transobj.h @@ -75,4 +75,23 @@ int mlx5_core_modify_rqt(struct mlx5_core_dev *dev, u32 rqtn, u32 *in, int inlen); void mlx5_core_destroy_rqt(struct mlx5_core_dev *dev, u32 rqtn); +struct mlx5_hairpin_params { + u8 log_data_size; + u16 q_counter; +}; + +struct mlx5_hairpin { + struct mlx5_core_dev *func_mdev; + struct mlx5_core_dev *peer_mdev; + + u32 rqn; + u32 sqn; +}; + +struct mlx5_hairpin * +mlx5_core_hairpin_create(struct mlx5_core_dev *func_mdev, + struct mlx5_core_dev *peer_mdev, + struct mlx5_hairpin_params *params); + +void mlx5_core_hairpin_destroy(struct mlx5_hairpin *pair); #endif /* __TRANSOBJ_H__ */ -- cgit v1.2.3