Commit 9ba481e2 authored by Yishai Hadas's avatar Yishai Hadas Committed by Leon Romanovsky
Browse files

net/mlx5: Set uid as part of CQ commands 



Set uid as part of CQ commands so that the firmware can manage the CQ
object in a secured way.

The firmware should mark this CQ with the given uid so that it can
be used later on only by objects with the same uid.

Upon DEVX flows that use this CQ (e.g. create QP command), the
pointed CQ must have the same uid as of the issuer uid command.

When a command is issued with uid=0 it means that the issuer of the
command is trusted (i.e. kernel), in that case any pointed object
can be used regardless of its uid.

Signed-off-by: default avatarYishai Hadas <yishaih@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
parent 5d773ff4

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

+4 −0
Original line number Diff line number Diff line
@@ -109,6 +109,7 @@ int mlx5_core_create_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, 
	cq->cons_index = 0;

	cq->arm_sn     = 0;

	cq->eq         = eq;

	cq->uid = MLX5_GET(create_cq_in, in, uid);

	refcount_set(&cq->refcount, 1);

	init_completion(&cq->free);

	if (!cq->comp)
@@ -144,6 +145,7 @@ err_cmd: 
	memset(dout, 0, sizeof(dout));

	MLX5_SET(destroy_cq_in, din, opcode, MLX5_CMD_OP_DESTROY_CQ);

	MLX5_SET(destroy_cq_in, din, cqn, cq->cqn);

	MLX5_SET(destroy_cq_in, din, uid, cq->uid);

	mlx5_cmd_exec(dev, din, sizeof(din), dout, sizeof(dout));

	return err;

}
@@ -165,6 +167,7 @@ int mlx5_core_destroy_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq) 


	MLX5_SET(destroy_cq_in, in, opcode, MLX5_CMD_OP_DESTROY_CQ);

	MLX5_SET(destroy_cq_in, in, cqn, cq->cqn);

	MLX5_SET(destroy_cq_in, in, uid, cq->uid);

	err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));

	if (err)

		return err;
@@ -196,6 +199,7 @@ int mlx5_core_modify_cq(struct mlx5_core_dev *dev, struct mlx5_core_cq *cq, 
	u32 out[MLX5_ST_SZ_DW(modify_cq_out)] = {0};



	MLX5_SET(modify_cq_in, in, opcode, MLX5_CMD_OP_MODIFY_CQ);

	MLX5_SET(modify_cq_in, in, uid, cq->uid);

	return mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));

}

EXPORT_SYMBOL(mlx5_core_modify_cq);

include/linux/mlx5/cq.h

+1 −0
Original line number Diff line number Diff line
@@ -61,6 +61,7 @@ struct mlx5_core_cq { 
	int			reset_notify_added;

	struct list_head	reset_notify;

	struct mlx5_eq		*eq;

	u16 uid;

};

include/linux/mlx5/mlx5_ifc.h

+3 −3
Original line number Diff line number Diff line
@@ -5629,7 +5629,7 @@ enum { 


struct mlx5_ifc_modify_cq_in_bits {

	u8         opcode[0x10];

	u8         reserved_at_10[0x10];

	u8         uid[0x10];



	u8         reserved_at_20[0x10];

	u8         op_mod[0x10];
@@ -6404,7 +6404,7 @@ struct mlx5_ifc_destroy_cq_out_bits { 


struct mlx5_ifc_destroy_cq_in_bits {

	u8         opcode[0x10];

	u8         reserved_at_10[0x10];

	u8         uid[0x10];



	u8         reserved_at_20[0x10];

	u8         op_mod[0x10];
@@ -7164,7 +7164,7 @@ struct mlx5_ifc_create_cq_out_bits { 


struct mlx5_ifc_create_cq_in_bits {

	u8         opcode[0x10];

	u8         reserved_at_10[0x10];

	u8         uid[0x10];



	u8         reserved_at_20[0x10];

	u8         op_mod[0x10];

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