Commit 1dcb6c36 authored by Eli Cohen's avatar Eli Cohen Committed by Saeed Mahameed
Browse files

net/mlx5: Support setting access rights of dma addresses 



mlx5_fill_page_frag_array() is used to populate dma addresses to
resources that require it, such as QPs, RQs etc. When the resource is
used, PA list permissions are ignored. For resources that use MTT list,
the user is required to provide the access rights. Subsequent patches
use resources that require MTT lists, so modify API and implementation
to support that.

Signed-off-by: default avatarEli Cohen <eli@mellanox.com>
Reviewed-by: default avatarParav Pandit <parav@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 4dca6509

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

+9 −2
Original line number Diff line number Diff line
@@ -299,11 +299,18 @@ void mlx5_fill_page_array(struct mlx5_frag_buf *buf, __be64 *pas) 
}

EXPORT_SYMBOL_GPL(mlx5_fill_page_array);



void mlx5_fill_page_frag_array(struct mlx5_frag_buf *buf, __be64 *pas)

void mlx5_fill_page_frag_array_perm(struct mlx5_frag_buf *buf, __be64 *pas, u8 perm)

{

	int i;



	WARN_ON(perm & 0xfc);

	for (i = 0; i < buf->npages; i++)

		pas[i] = cpu_to_be64(buf->frags[i].map);

		pas[i] = cpu_to_be64(buf->frags[i].map | perm);

}

EXPORT_SYMBOL_GPL(mlx5_fill_page_frag_array_perm);



void mlx5_fill_page_frag_array(struct mlx5_frag_buf *buf, __be64 *pas)

{

	mlx5_fill_page_frag_array_perm(buf, pas, 0);

}

EXPORT_SYMBOL_GPL(mlx5_fill_page_frag_array);

include/linux/mlx5/driver.h

+1 −0
Original line number Diff line number Diff line
@@ -971,6 +971,7 @@ void mlx5_register_debugfs(void); 
void mlx5_unregister_debugfs(void);



void mlx5_fill_page_array(struct mlx5_frag_buf *buf, __be64 *pas);

void mlx5_fill_page_frag_array_perm(struct mlx5_frag_buf *buf, __be64 *pas, u8 perm);

void mlx5_fill_page_frag_array(struct mlx5_frag_buf *frag_buf, __be64 *pas);

int mlx5_vector2eqn(struct mlx5_core_dev *dev, int vector, int *eqn,

		    unsigned int *irqn);

include/linux/mlx5/mlx5_ifc.h

+6 −0
Original line number Diff line number Diff line
@@ -10653,4 +10653,10 @@ struct mlx5_ifc_tls_progress_params_bits { 
	u8         hw_offset_record_number[0x18];

};



enum {

	MLX5_MTT_PERM_READ	= 1 << 0,

	MLX5_MTT_PERM_WRITE	= 1 << 1,

	MLX5_MTT_PERM_RW	= MLX5_MTT_PERM_READ | MLX5_MTT_PERM_WRITE,

};



#endif /* MLX5_IFC_H */

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