diff options
| author |   Mark Zhang <markz@mellanox.com> | 2019-08-19 14:36:26 +0300 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2019-08-26 10:30:00 -0400 |
| commit | d8abe88450beb96a66e434323eb6ab737654b840 (patch) | |
| tree | 4f37127faf666df9e6bd34cd5eaa1462abd49857 /drivers | |
| parent | Merge remote-tracking branch 'mlx5-next/mlx5-next' into for-next (diff) | |
| download | linux-dev-d8abe88450beb96a66e434323eb6ab737654b840.tar.xz linux-dev-d8abe88450beb96a66e434323eb6ab737654b840.zip | |
RDMA/mlx5: RDMA_RX flow type support for user applications
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>
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/flow.c | 13 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 7 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 1 |
3 files changed, 19 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx5/flow.c b/drivers/infiniband/hw/mlx5/flow.c index b8841355fcd5..571bb8539cdb 100644 --- a/drivers/infiniband/hw/mlx5/flow.c +++ b/drivers/infiniband/hw/mlx5/flow.c @@ -32,6 +32,9 @@ mlx5_ib_ft_type_to_namespace(enum mlx5_ib_uapi_flow_table_type table_type, case MLX5_IB_UAPI_FLOW_TABLE_TYPE_FDB: *namespace = MLX5_FLOW_NAMESPACE_FDB; break; + case MLX5_IB_UAPI_FLOW_TABLE_TYPE_RDMA_RX: + *namespace = MLX5_FLOW_NAMESPACE_RDMA_RX; + break; default: return -EINVAL; } @@ -101,6 +104,11 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_CREATE_FLOW)( if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_FDB && !dest_devx) return -EINVAL; + /* Allow only DEVX object or QP as dest when inserting to RDMA_RX */ + if ((fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_RDMA_RX) && + ((!dest_devx && !dest_qp) || (dest_devx && dest_qp))) + return -EINVAL; + if (dest_devx) { devx_obj = uverbs_attr_get_obj( attrs, MLX5_IB_ATTR_CREATE_FLOW_DEST_DEVX); @@ -112,8 +120,9 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_CREATE_FLOW)( */ if (!mlx5_ib_devx_is_flow_dest(devx_obj, &dest_id, &dest_type)) return -EINVAL; - /* Allow only flow table as dest when inserting to FDB */ - if (fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_FDB && + /* Allow only flow table as dest when inserting to FDB or RDMA_RX */ + if ((fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_FDB || + fs_matcher->ns_type == MLX5_FLOW_NAMESPACE_RDMA_RX) && dest_type != MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE) return -EINVAL; } else if (dest_qp) { diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 1ec0e667110e..07aecba16019 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -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); diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index cb41a7e6255a..6abfbf3a69b7 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -200,6 +200,7 @@ struct mlx5_ib_flow_db { struct mlx5_ib_flow_prio sniffer[MLX5_IB_NUM_SNIFFER_FTS]; 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_flow_table *lag_demux_ft; /* Protect flow steering bypass flow tables * when add/del flow rules. |