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RDMA/mlx5: RDMA_RX flow type support for user applications

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Currently user applications can only steer TCP/IP(NIC RX/RX) traffic.
This patch adds RDMA_RX as a new flow type to allow the user to insert
steering rules to control RDMA traffic.
Two destinations are supported(but not set at the same time): devx
flow table object and QP.

Signed-off-by: Mark Zhang <markz@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20190819113626.20284-4-leon@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Mark Zhang
2019-08-19 14:36:26 +03:00
committed by Doug Ledford
parent 973ca46d5c
commit d8abe88450
4 changed files with 20 additions and 2 deletions
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7
drivers/infiniband/hw/mlx5/main.c
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@@ -3963,6 +3963,11 @@ _get_flow_table(struct mlx5_ib_dev *dev,
esw_encap)
flags |= MLX5_FLOW_TABLE_TUNNEL_EN_REFORMAT;
priority = FDB_BYPASS_PATH;
} else if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_RDMA_RX) {
max_table_size =
BIT(MLX5_CAP_FLOWTABLE_RDMA_RX(dev->mdev,
log_max_ft_size));
priority = fs_matcher->priority;
}
max_table_size = min_t(int, max_table_size, MLX5_FS_MAX_ENTRIES);
@@ -3977,6 +3982,8 @@ _get_flow_table(struct mlx5_ib_dev *dev,
prio = &dev->flow_db->egress_prios[priority];
else if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_FDB)
prio = &dev->flow_db->fdb;
else if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_RDMA_RX)
prio = &dev->flow_db->rdma_rx[priority];
if (!prio)
return ERR_PTR(-EINVAL);