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Commit fc385b7a authored by Mark Bloch's avatar Mark Bloch Committed by Saeed Mahameed
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IB/mlx5: Add basic regiser/unregister representors code 



Create the basic infrastructure of registering and unregistering
IB representors. The load/unload callbacks are left empty and
proper implementation will be introduced in following patches.

Signed-off-by: default avatarMark Bloch <markb@mellanox.com>
Reviewed-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 5e65b02c

drivers/infiniband/hw/mlx5/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -2,3 +2,4 @@ obj-$(CONFIG_MLX5_INFINIBAND) += mlx5_ib.o 


mlx5_ib-y :=	main.o cq.o doorbell.o qp.o mem.o srq.o mr.o ah.o mad.o gsi.o ib_virt.o cmd.o cong.o

mlx5_ib-$(CONFIG_INFINIBAND_ON_DEMAND_PAGING) += odp.o

mlx5_ib-$(CONFIG_MLX5_ESWITCH) += ib_rep.o

drivers/infiniband/hw/mlx5/ib_rep.c

0 → 100644
+104 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */

/*

 * Copyright (c) 2018 Mellanox Technologies. All rights reserved.

 */



#include "ib_rep.h"



static int

mlx5_ib_nic_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)

{

	return 0;

}



static void

mlx5_ib_nic_rep_unload(struct mlx5_eswitch_rep *rep)

{

}



static int

mlx5_ib_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)

{

	return 0;

}



static void

mlx5_ib_vport_rep_unload(struct mlx5_eswitch_rep *rep)

{

}



static void *mlx5_ib_vport_get_proto_dev(struct mlx5_eswitch_rep *rep)

{

	return mlx5_ib_rep_to_dev(rep);

}



static void mlx5_ib_rep_register_vf_vports(struct mlx5_ib_dev *dev)

{

	struct mlx5_eswitch *esw   = dev->mdev->priv.eswitch;

	int total_vfs = MLX5_TOTAL_VPORTS(dev->mdev);

	int vport;



	for (vport = 1; vport < total_vfs; vport++) {

		struct mlx5_eswitch_rep_if rep_if = {};



		rep_if.load = mlx5_ib_vport_rep_load;

		rep_if.unload = mlx5_ib_vport_rep_unload;

		rep_if.get_proto_dev = mlx5_ib_vport_get_proto_dev;

		mlx5_eswitch_register_vport_rep(esw, vport, &rep_if, REP_IB);

	}

}



static void mlx5_ib_rep_unregister_vf_vports(struct mlx5_ib_dev *dev)

{

	struct mlx5_eswitch *esw   = dev->mdev->priv.eswitch;

	int total_vfs = MLX5_TOTAL_VPORTS(dev->mdev);

	int vport;



	for (vport = 1; vport < total_vfs; vport++)

		mlx5_eswitch_unregister_vport_rep(esw, vport, REP_IB);

}



void mlx5_ib_register_vport_reps(struct mlx5_ib_dev *dev)

{

	struct mlx5_eswitch *esw = dev->mdev->priv.eswitch;

	struct mlx5_eswitch_rep_if rep_if = {};



	rep_if.load = mlx5_ib_nic_rep_load;

	rep_if.unload = mlx5_ib_nic_rep_unload;

	rep_if.get_proto_dev = mlx5_ib_vport_get_proto_dev;

	rep_if.priv = dev;



	mlx5_eswitch_register_vport_rep(esw, 0, &rep_if, REP_IB);



	mlx5_ib_rep_register_vf_vports(dev);

}



void mlx5_ib_unregister_vport_reps(struct mlx5_ib_dev *dev)

{

	struct mlx5_eswitch *esw   = dev->mdev->priv.eswitch;



	mlx5_ib_rep_unregister_vf_vports(dev); /* VFs vports */

	mlx5_eswitch_unregister_vport_rep(esw, 0, REP_IB); /* UPLINK PF*/

}



u8 mlx5_ib_eswitch_mode(struct mlx5_eswitch *esw)

{

	return mlx5_eswitch_mode(esw);

}



struct mlx5_ib_dev *mlx5_ib_get_rep_ibdev(struct mlx5_eswitch *esw,

					  int vport_index)

{

	return mlx5_eswitch_get_proto_dev(esw, vport_index, REP_IB);

}



struct net_device *mlx5_ib_get_rep_netdev(struct mlx5_eswitch *esw,

					  int vport_index)

{

	return mlx5_eswitch_get_proto_dev(esw, vport_index, REP_ETH);

}



struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw, int vport)

{

	return mlx5_eswitch_vport_rep(esw, vport);

}

drivers/infiniband/hw/mlx5/ib_rep.h

0 → 100644
+49 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */

/*

 * Copyright (c) 2018 Mellanox Technologies. All rights reserved.

 */



#ifndef __MLX5_IB_REP_H__

#define __MLX5_IB_REP_H__



#include <linux/mlx5/eswitch.h>

#include "mlx5_ib.h"



#ifdef CONFIG_MLX5_ESWITCH

u8 mlx5_ib_eswitch_mode(struct mlx5_eswitch *esw);

struct mlx5_ib_dev *mlx5_ib_get_rep_ibdev(struct mlx5_eswitch *esw,

					  int vport_index);

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);

#else /* CONFIG_MLX5_ESWITCH */

static inline u8 mlx5_ib_eswitch_mode(struct mlx5_eswitch *esw)

{

	return SRIOV_NONE;

}



static inline

struct mlx5_ib_dev *mlx5_ib_get_rep_ibdev(struct mlx5_eswitch *esw,

					  int vport_index)

{

	return NULL;

}



static inline

struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw,

					   int vport_index)

{

	return NULL;

}



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) {}

#endif



static inline

struct mlx5_ib_dev *mlx5_ib_rep_to_dev(struct mlx5_eswitch_rep *rep)

{

	return (struct mlx5_ib_dev *)rep->rep_if[REP_IB].priv;

}

#endif /* __MLX5_IB_REP_H__ */

drivers/infiniband/hw/mlx5/main.c

+13 −0
Original line number Diff line number Diff line
@@ -57,6 +57,7 @@ 
#include <linux/in.h>

#include <linux/etherdevice.h>

#include "mlx5_ib.h"

#include "ib_rep.h"

#include "cmd.h"



#define DRIVER_NAME "mlx5_ib"
@@ -4905,6 +4906,18 @@ static int mlx5_ib_stage_class_attr_init(struct mlx5_ib_dev *dev) 
	return 0;

}



static int mlx5_ib_stage_rep_reg_init(struct mlx5_ib_dev *dev)

{

	mlx5_ib_register_vport_reps(dev);



	return 0;

}



static void mlx5_ib_stage_rep_reg_cleanup(struct mlx5_ib_dev *dev)

{

	mlx5_ib_unregister_vport_reps(dev);

}



static void __mlx5_ib_remove(struct mlx5_ib_dev *dev,

			     const struct mlx5_ib_profile *profile,

			     int stage)

drivers/infiniband/hw/mlx5/mlx5_ib.h

+2 −0
Original line number Diff line number Diff line
@@ -743,6 +743,7 @@ enum mlx5_ib_stages { 
	MLX5_IB_STAGE_UMR_RESOURCES,

	MLX5_IB_STAGE_DELAY_DROP,

	MLX5_IB_STAGE_CLASS_ATTR,

	MLX5_IB_STAGE_REP_REG,

	MLX5_IB_STAGE_MAX,

};
@@ -807,6 +808,7 @@ struct mlx5_ib_dev { 
	struct mlx5_sq_bfreg	fp_bfreg;

	struct mlx5_ib_delay_drop	delay_drop;

	const struct mlx5_ib_profile	*profile;

	struct mlx5_eswitch_rep		*rep;



	/* protect the user_td */

	struct mutex		lb_mutex;