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RDMA: Lift ibdev_to_node from rds to common code

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commit 8ecfca68dc upstream.

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: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Cc: Krishnamraju Eraparaju <krishna2@chelsio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christoph Hellwig 2020-11-06 19:19:34 +01:00 committed by Greg Kroah-Hartman
parent 77344e18cf
commit 225d207da2
2 changed files with 13 additions and 7 deletions
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13
include/rdma/ib_verbs.h
View file

@ -4642,6 +4642,19 @@ 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.

7
net/rds/ib.h
View file

@ -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 */