From 8ecfca68dc4cbee1272a0161e3f2fb9387dc6930 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 6 Nov 2020 19:19:34 +0100 Subject: 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: Christoph Hellwig Signed-off-by: Jason Gunthorpe --- include/rdma/ib_verbs.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/rdma') diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index a0f9b1c133e4..3feb42ef82dc 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -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. -- cgit v1.3-18-gd494