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Commit 56508b50 authored by Achiad Shochat's avatar Achiad Shochat Committed by David S. Miller
Browse files

net/mlx5_core: Add transport domain alloc/dealloc support 



Each transport object, namely TIR and TIS, must have a transport domain
number (TDN) identifier.

The driver wrongly assumed that it is OK to use TDN=0 without explicit
TDN allocation from the device.

The TDN will also be used for isolating different processes once user
mode Ethernet will be supported.

Signed-off-by: default avatarAchiad Shochat <achiad@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: default avatarOr Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 12be4b21

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

+35 −0
Original line number Diff line number Diff line
@@ -34,6 +34,41 @@ 
#include "mlx5_core.h"

#include "transobj.h"



int mlx5_alloc_transport_domain(struct mlx5_core_dev *dev, u32 *tdn)

{

	u32 in[MLX5_ST_SZ_DW(alloc_transport_domain_in)];

	u32 out[MLX5_ST_SZ_DW(alloc_transport_domain_out)];

	int err;



	memset(in, 0, sizeof(in));

	memset(out, 0, sizeof(out));



	MLX5_SET(alloc_transport_domain_in, in, opcode,

		 MLX5_CMD_OP_ALLOC_TRANSPORT_DOMAIN);



	err = mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out));

	if (!err)

		*tdn = MLX5_GET(alloc_transport_domain_out, out,

				transport_domain);



	return err;

}



void mlx5_dealloc_transport_domain(struct mlx5_core_dev *dev, u32 tdn)

{

	u32 in[MLX5_ST_SZ_DW(dealloc_transport_domain_in)];

	u32 out[MLX5_ST_SZ_DW(dealloc_transport_domain_out)];



	memset(in, 0, sizeof(in));

	memset(out, 0, sizeof(out));



	MLX5_SET(dealloc_transport_domain_in, in, opcode,

		 MLX5_CMD_OP_DEALLOC_TRANSPORT_DOMAIN);

	MLX5_SET(dealloc_transport_domain_in, in, transport_domain, tdn);



	mlx5_cmd_exec_check_status(dev, in, sizeof(in), out, sizeof(out));

}



int mlx5_core_create_rq(struct mlx5_core_dev *dev, u32 *in, int inlen, u32 *rqn)

{

	u32 out[MLX5_ST_SZ_DW(create_rq_out)];

drivers/net/ethernet/mellanox/mlx5/core/transobj.h

+2 −0
Original line number Diff line number Diff line
@@ -33,6 +33,8 @@ 
#ifndef __TRANSOBJ_H__

#define __TRANSOBJ_H__



int mlx5_alloc_transport_domain(struct mlx5_core_dev *dev, u32 *tdn);

void mlx5_dealloc_transport_domain(struct mlx5_core_dev *dev, u32 tdn);

int mlx5_core_create_rq(struct mlx5_core_dev *dev, u32 *in, int inlen,

			u32 *rqn);

int mlx5_core_modify_rq(struct mlx5_core_dev *dev, u32 rqn, u32 *in, int inlen);