Commit c8e6a9e6 authored by Mark Bloch's avatar Mark Bloch Committed by Saeed Mahameed
Browse files

net/mlx5: E-Switch, Add event callback for representors 



This callback will allow to notify representors about relevant events
when in OFFLOADS mode. In downstream patches, this will be used to notify
about PAIR/UNPAIR devcom events.

Signed-off-by: default avatarMark Bloch <mbloch@nvidia.com>
Reviewed-by: default avatarMark Zhang <markzhang@nvidia.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@nvidia.com>
parent 2198b932

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c

+47 −3
Original line number Diff line number Diff line
@@ -2316,11 +2316,22 @@ void esw_offloads_unload_rep(struct mlx5_eswitch *esw, u16 vport_num) 
#define ESW_OFFLOADS_DEVCOM_PAIR	(0)

#define ESW_OFFLOADS_DEVCOM_UNPAIR	(1)



static int mlx5_esw_offloads_pair(struct mlx5_eswitch *esw,

				  struct mlx5_eswitch *peer_esw)

static void mlx5_esw_offloads_rep_event_unpair(struct mlx5_eswitch *esw)

{

	const struct mlx5_eswitch_rep_ops *ops;

	struct mlx5_eswitch_rep *rep;

	unsigned long i;

	u8 rep_type;



	return esw_add_fdb_peer_miss_rules(esw, peer_esw->dev);

	mlx5_esw_for_each_rep(esw, i, rep) {

		rep_type = NUM_REP_TYPES;

		while (rep_type--) {

			ops = esw->offloads.rep_ops[rep_type];

			if (atomic_read(&rep->rep_data[rep_type].state) == REP_LOADED &&

			    ops->event)

				ops->event(esw, rep, MLX5_SWITCHDEV_EVENT_UNPAIR, NULL);

		}

	}

}



static void mlx5_esw_offloads_unpair(struct mlx5_eswitch *esw)
@@ -2328,9 +2339,42 @@ static void mlx5_esw_offloads_unpair(struct mlx5_eswitch *esw) 
#if IS_ENABLED(CONFIG_MLX5_CLS_ACT)

	mlx5e_tc_clean_fdb_peer_flows(esw);

#endif

	mlx5_esw_offloads_rep_event_unpair(esw);

	esw_del_fdb_peer_miss_rules(esw);

}



static int mlx5_esw_offloads_pair(struct mlx5_eswitch *esw,

				  struct mlx5_eswitch *peer_esw)

{

	const struct mlx5_eswitch_rep_ops *ops;

	struct mlx5_eswitch_rep *rep;

	unsigned long i;

	u8 rep_type;

	int err;



	err = esw_add_fdb_peer_miss_rules(esw, peer_esw->dev);

	if (err)

		return err;



	mlx5_esw_for_each_rep(esw, i, rep) {

		for (rep_type = 0; rep_type < NUM_REP_TYPES; rep_type++) {

			ops = esw->offloads.rep_ops[rep_type];

			if (atomic_read(&rep->rep_data[rep_type].state) == REP_LOADED &&

			    ops->event) {

				err = ops->event(esw, rep, MLX5_SWITCHDEV_EVENT_PAIR, peer_esw);

				if (err)

					goto err_out;

			}

		}

	}



	return 0;



err_out:

	mlx5_esw_offloads_unpair(esw);

	return err;

}



static int mlx5_esw_offloads_set_ns_peer(struct mlx5_eswitch *esw,

					 struct mlx5_eswitch *peer_esw,

					 bool pair)

include/linux/mlx5/eswitch.h

+9 −0
Original line number Diff line number Diff line
@@ -29,11 +29,20 @@ enum { 
	REP_LOADED,

};



enum mlx5_switchdev_event {

	MLX5_SWITCHDEV_EVENT_PAIR,

	MLX5_SWITCHDEV_EVENT_UNPAIR,

};



struct mlx5_eswitch_rep;

struct mlx5_eswitch_rep_ops {

	int (*load)(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep);

	void (*unload)(struct mlx5_eswitch_rep *rep);

	void *(*get_proto_dev)(struct mlx5_eswitch_rep *rep);

	int (*event)(struct mlx5_eswitch *esw,

		     struct mlx5_eswitch_rep *rep,

		     enum mlx5_switchdev_event event,

		     void *data);

};



struct mlx5_eswitch_rep_data {