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IB/mlx5: E-Switch, Add rule to forward traffic to vport

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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@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Mark Bloch 2018-01-29 10:40:37 +00:00 committed by Saeed Mahameed
parent 72afcf8247
commit b96c9dde17
4 changed files with 45 additions and 0 deletions
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20
drivers/infiniband/hw/mlx5/ib_rep.c
View file

@ -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;
}

8
drivers/infiniband/hw/mlx5/ib_rep.h
View file

@ -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)

1
drivers/infiniband/hw/mlx5/mlx5_ib.h
View file

@ -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;
};

16
drivers/infiniband/hw/mlx5/qp.c
View file

@ -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);
}