Commit 8ecfca68 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jason Gunthorpe
Browse files

RDMA: Lift ibdev_to_node from rds to common code 

Lift the ibdev_to_node from rds to common code and document it.

Link: https://lore.kernel.org/r/20201106181941.1878556-4-hch@lst.de


Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJason Gunthorpe <jgg@nvidia.com>
parent 2af29468

include/rdma/ib_verbs.h

+13 −0
Original line number Diff line number Diff line
@@ -4549,6 +4549,19 @@ static inline struct ib_device *rdma_device_to_ibdev(struct device *device) 
	return coredev->owner;

}



/**

 * ibdev_to_node - return the NUMA node for a given ib_device

 * @dev:	device to get the NUMA node for.

 */

static inline int ibdev_to_node(struct ib_device *ibdev)

{

	struct device *parent = ibdev->dev.parent;



	if (!parent)

		return NUMA_NO_NODE;

	return dev_to_node(parent);

}



/**

 * rdma_device_to_drv_device - Helper macro to reach back to driver's

 *			       ib_device holder structure from device pointer.

net/rds/ib.h

+0 −7
Original line number Diff line number Diff line
@@ -264,13 +264,6 @@ struct rds_ib_device { 
	int			*vector_load;

};



static inline int ibdev_to_node(struct ib_device *ibdev)

{

	struct device *parent;



	parent = ibdev->dev.parent;

	return parent ? dev_to_node(parent) : NUMA_NO_NODE;

}

#define rdsibdev_to_node(rdsibdev) ibdev_to_node(rdsibdev->dev)



/* bits for i_ack_flags */