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Commit 78dd0c43 authored by Mark Bloch's avatar Mark Bloch Committed by Jason Gunthorpe
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RDMA/mlx5: Add NIC TX steering support 



Just like ingress steering, allow a user to create steering rules that
match egress vport traffic. We expose the same number of priorities as
the bypass (NIC RX) steering.

Signed-off-by: default avatarMark Bloch <markb@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent eb93c82e

drivers/infiniband/hw/mlx5/main.c

+19 −10
Original line number Diff line number Diff line
@@ -2891,7 +2891,7 @@ is_valid_esp_aes_gcm(struct mlx5_core_dev *mdev, 
	 * rules would be supported, always return VALID_SPEC_NA.

	 */

	if (!is_crypto)

		return egress ? VALID_SPEC_INVALID : VALID_SPEC_NA;

		return VALID_SPEC_NA;



	return is_crypto && is_ipsec &&

		(!egress || (!is_drop && !flow_act->has_flow_tag)) ?
@@ -3066,21 +3066,27 @@ static struct mlx5_ib_flow_prio *get_flow_table(struct mlx5_ib_dev *dev, 
	max_table_size = BIT(MLX5_CAP_FLOWTABLE_NIC_RX(dev->mdev,

						       log_max_ft_size));

	if (flow_attr->type == IB_FLOW_ATTR_NORMAL) {

		if (ft_type == MLX5_IB_FT_TX)

			priority = 0;

		else if (flow_is_multicast_only(flow_attr) &&

		enum mlx5_flow_namespace_type fn_type;



		if (flow_is_multicast_only(flow_attr) &&

		    !dont_trap)

			priority = MLX5_IB_FLOW_MCAST_PRIO;

		else

			priority = ib_prio_to_core_prio(flow_attr->priority,

							dont_trap);

		ns = mlx5_get_flow_namespace(dev->mdev,

					     ft_type == MLX5_IB_FT_TX ?

					     MLX5_FLOW_NAMESPACE_EGRESS :

					     MLX5_FLOW_NAMESPACE_BYPASS);

		if (ft_type == MLX5_IB_FT_RX) {

			fn_type = MLX5_FLOW_NAMESPACE_BYPASS;

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

		} else {

			max_table_size =

				BIT(MLX5_CAP_FLOWTABLE_NIC_TX(dev->mdev,

							      log_max_ft_size));

			fn_type = MLX5_FLOW_NAMESPACE_EGRESS;

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

		}

		ns = mlx5_get_flow_namespace(dev->mdev, fn_type);

		num_entries = MLX5_FS_MAX_ENTRIES;

		num_groups = MLX5_FS_MAX_TYPES;

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

	} else if (flow_attr->type == IB_FLOW_ATTR_ALL_DEFAULT ||

		   flow_attr->type == IB_FLOW_ATTR_MC_DEFAULT) {

		ns = mlx5_get_flow_namespace(dev->mdev,
@@ -3279,6 +3285,9 @@ static struct mlx5_ib_flow_handler *_create_flow_rule(struct mlx5_ib_dev *dev, 
	if (!is_valid_attr(dev->mdev, flow_attr))

		return ERR_PTR(-EINVAL);



	if (dev->rep && is_egress)

		return ERR_PTR(-EINVAL);



	spec = kvzalloc(sizeof(*spec), GFP_KERNEL);

	handler = kzalloc(sizeof(*handler), GFP_KERNEL);

	if (!handler || !spec) {

drivers/infiniband/hw/mlx5/mlx5_ib.h

+1 −0
Original line number Diff line number Diff line
@@ -196,6 +196,7 @@ struct mlx5_ib_flow_matcher { 


struct mlx5_ib_flow_db {

	struct mlx5_ib_flow_prio	prios[MLX5_IB_NUM_FLOW_FT];

	struct mlx5_ib_flow_prio	egress_prios[MLX5_IB_NUM_FLOW_FT];

	struct mlx5_ib_flow_prio	sniffer[MLX5_IB_NUM_SNIFFER_FTS];

	struct mlx5_ib_flow_prio	egress[MLX5_IB_NUM_EGRESS_FTS];

	struct mlx5_flow_table		*lag_demux_ft;