Commit af9c3841 authored by Michael Guralnik's avatar Michael Guralnik Committed by Jason Gunthorpe
Browse files

RDMA/mlx5: Add support for RDMA TX flow table 

Enable user application to add rules for RDMA TX steering table.
Rules in this steering table will allow to steer transmitted RDMA
traffic.

Link: https://lore.kernel.org/r/20200324061425.1570190-3-leon@kernel.org


Signed-off-by: default avatarMichael Guralnik <michaelgur@mellanox.com>
Reviewed-by: default avatarMaor Gottlieb <maorg@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent 24670b1a

drivers/infiniband/hw/mlx5/flow.c

+3 −0
Original line number Diff line number Diff line
@@ -35,6 +35,9 @@ mlx5_ib_ft_type_to_namespace(enum mlx5_ib_uapi_flow_table_type table_type, 
	case MLX5_IB_UAPI_FLOW_TABLE_TYPE_RDMA_RX:

		*namespace = MLX5_FLOW_NAMESPACE_RDMA_RX;

		break;

	case MLX5_IB_UAPI_FLOW_TABLE_TYPE_RDMA_TX:

		*namespace = MLX5_FLOW_NAMESPACE_RDMA_TX;

		break;

	default:

		return -EINVAL;

	}

drivers/infiniband/hw/mlx5/main.c

+7 −0
Original line number Diff line number Diff line
@@ -4045,6 +4045,11 @@ _get_flow_table(struct mlx5_ib_dev *dev, 
			BIT(MLX5_CAP_FLOWTABLE_RDMA_RX(dev->mdev,

						       log_max_ft_size));

		priority = fs_matcher->priority;

	} else if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_RDMA_TX) {

		max_table_size =

			BIT(MLX5_CAP_FLOWTABLE_RDMA_TX(dev->mdev,

						       log_max_ft_size));

		priority = fs_matcher->priority;

	}



	max_table_size = min_t(int, max_table_size, MLX5_FS_MAX_ENTRIES);
@@ -4061,6 +4066,8 @@ _get_flow_table(struct mlx5_ib_dev *dev, 
		prio = &dev->flow_db->fdb;

	else if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_RDMA_RX)

		prio = &dev->flow_db->rdma_rx[priority];

	else if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_RDMA_TX)

		prio = &dev->flow_db->rdma_tx[priority];



	if (!prio)

		return ERR_PTR(-EINVAL);

drivers/infiniband/hw/mlx5/mlx5_ib.h

+1 −0
Original line number Diff line number Diff line
@@ -210,6 +210,7 @@ struct mlx5_ib_flow_db { 
	struct mlx5_ib_flow_prio	egress[MLX5_IB_NUM_EGRESS_FTS];

	struct mlx5_ib_flow_prio	fdb;

	struct mlx5_ib_flow_prio	rdma_rx[MLX5_IB_NUM_FLOW_FT];

	struct mlx5_ib_flow_prio	rdma_tx[MLX5_IB_NUM_FLOW_FT];

	struct mlx5_flow_table		*lag_demux_ft;

	/* Protect flow steering bypass flow tables

	 * when add/del flow rules.

include/uapi/rdma/mlx5_user_ioctl_verbs.h

+1 −0
Original line number Diff line number Diff line
@@ -44,6 +44,7 @@ enum mlx5_ib_uapi_flow_table_type { 
	MLX5_IB_UAPI_FLOW_TABLE_TYPE_NIC_TX	= 0x1,

	MLX5_IB_UAPI_FLOW_TABLE_TYPE_FDB	= 0x2,

	MLX5_IB_UAPI_FLOW_TABLE_TYPE_RDMA_RX	= 0x3,

	MLX5_IB_UAPI_FLOW_TABLE_TYPE_RDMA_TX	= 0x4,

};



enum mlx5_ib_uapi_flow_action_packet_reformat_type {

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