From: Mark Bloch <markb@xxxxxxxxxxxx>
In order to forward traffic from representor's SQ to the right virtual
function, every time an SQ is created also add the corresponding flow rule
to the FDB.
Signed-off-by: Mark Bloch <markb@xxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
Signed-off-by: Saeed Mahameed <saeedm@xxxxxxxxxxxx>
---
drivers/infiniband/hw/mlx5/ib_rep.c | 20 ++++++++++++++++++++
drivers/infiniband/hw/mlx5/ib_rep.h | 8 ++++++++
drivers/infiniband/hw/mlx5/mlx5_ib.h | 1 +
drivers/infiniband/hw/mlx5/qp.c | 16 ++++++++++++++++
4 files changed, 45 insertions(+)
diff --git a/drivers/infiniband/hw/mlx5/ib_rep.c b/drivers/infiniband/hw/mlx5/ib_rep.c
index adf2439ddacb..a5d0c3917568 100644
--- a/drivers/infiniband/hw/mlx5/ib_rep.c
+++ b/drivers/infiniband/hw/mlx5/ib_rep.c
@@ -102,3 +102,23 @@ struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw, int vport)
{
return mlx5_eswitch_vport_rep(esw, vport);
}
+
+int create_flow_rule_vport_sq(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_sq *sq)
+{
+ struct mlx5_flow_handle *flow_rule;
+ struct mlx5_eswitch *esw = dev->mdev->priv.eswitch;
+
+ if (!dev->rep)
+ return 0;
+
+ flow_rule =
+ mlx5_eswitch_add_send_to_vport_rule(esw,
+ dev->rep->vport,
+ sq->base.mqp.qpn);
+ if (IS_ERR(flow_rule))
+ return PTR_ERR(flow_rule);
+ sq->flow_rule = flow_rule;
+
+ return 0;
+}
diff --git a/drivers/infiniband/hw/mlx5/ib_rep.h b/drivers/infiniband/hw/mlx5/ib_rep.h
index 923ad4cba941..832cfd382ecc 100644
--- a/drivers/infiniband/hw/mlx5/ib_rep.h
+++ b/drivers/infiniband/hw/mlx5/ib_rep.h
@@ -17,6 +17,8 @@ struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw,
int vport_index);
void mlx5_ib_register_vport_reps(struct mlx5_ib_dev *dev);
void mlx5_ib_unregister_vport_reps(struct mlx5_ib_dev *dev);
+int create_flow_rule_vport_sq(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_sq *sq);
struct net_device *mlx5_ib_get_rep_netdev(struct mlx5_eswitch *esw,
int vport_index);
#else /* CONFIG_MLX5_ESWITCH */
@@ -41,6 +43,12 @@ struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw,
static inline void mlx5_ib_register_vport_reps(struct mlx5_ib_dev *dev) {}
static inline void mlx5_ib_unregister_vport_reps(struct mlx5_ib_dev *dev) {}
+static inline int create_flow_rule_vport_sq(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_sq *sq)
+{
+ return 0;
+}
+
static inline
struct net_device *mlx5_ib_get_rep_netdev(struct mlx5_eswitch *esw,
int vport_index)
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 4dd98b1e9165..86d07670bfeb 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -343,6 +343,7 @@ struct mlx5_ib_sq {
struct mlx5_ib_wq *sq;
struct mlx5_ib_ubuffer ubuffer;
struct mlx5_db *doorbell;
+ struct mlx5_flow_handle *flow_rule;
u32 tisn;
u8 state;
};
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 39d24bf694a8..8aed091036c6 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -36,6 +36,7 @@
#include <rdma/ib_user_verbs.h>
#include <linux/mlx5/fs.h>
#include "mlx5_ib.h"
+#include "ib_rep.h"
/* not supported currently */
static int wq_signature;
@@ -1082,6 +1083,13 @@ static void destroy_raw_packet_qp_tis(struct mlx5_ib_dev *dev,
mlx5_core_destroy_tis(dev->mdev, sq->tisn);
}
+static void destroy_flow_rule_vport_sq(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_sq *sq)
+{
+ if (sq->flow_rule)
+ mlx5_del_flow_rules(sq->flow_rule);
+}
+
static int create_raw_packet_qp_sq(struct mlx5_ib_dev *dev,
struct mlx5_ib_sq *sq, void *qpin,
struct ib_pd *pd)
@@ -1145,8 +1153,15 @@ static int create_raw_packet_qp_sq(struct mlx5_ib_dev *dev,
if (err)
goto err_umem;
+ err = create_flow_rule_vport_sq(dev, sq);
+ if (err)
+ goto err_flow;
+
return 0;
+err_flow:
+ mlx5_core_destroy_sq_tracked(dev->mdev, &sq->base.mqp);
+
err_umem:
ib_umem_release(sq->ubuffer.umem);
sq->ubuffer.umem = NULL;
@@ -1157,6 +1172,7 @@ static int create_raw_packet_qp_sq(struct mlx5_ib_dev *dev,
static void destroy_raw_packet_qp_sq(struct mlx5_ib_dev *dev,
struct mlx5_ib_sq *sq)
{
+ destroy_flow_rule_vport_sq(dev, sq);
mlx5_core_destroy_sq_tracked(dev->mdev, &sq->base.mqp);
ib_umem_release(sq->ubuffer.umem);
}
--
2.14.3
--
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