diff options
| author | Parav Pandit <parav@mellanox.com> | 2018-12-18 15:15:56 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-01-14 23:12:03 +0300 |
| commit | 54747231150f0dddf68f2ee29ec2970fcc433909 (patch) | |
| tree | 018c558d4cabe418190cca967f598a24a394e284 /include | |
| parent | ea4baf7f116a18382df331db2123d98bc1c3cd83 (diff) | |
| download | linux-54747231150f0dddf68f2ee29ec2970fcc433909.tar.xz | |
RDMA: Introduce and use rdma_device_to_ibdev()
Introduce and use rdma_device_to_ibdev() API for those drivers which are
registering one sysfs group and also use in ib_core.
In subsequent patch, device->provider_ibdev one-to-one mapping is no
longer holds true during accessing sysfs entries.
Therefore, introduce an API rdma_device_to_ibdev() that provides such
information.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/rdma/ib_verbs.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 1d1902fd9f87..94b6e1dd4dab 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -4241,4 +4241,27 @@ rdma_set_device_sysfs_group(struct ib_device *dev, dev->groups[1] = group; } +/** + * rdma_device_to_ibdev - Get ib_device pointer from device pointer + * + * @device: device pointer for which ib_device pointer to retrieve + * + * rdma_device_to_ibdev() retrieves ib_device pointer from device. + * + */ +static inline struct ib_device *rdma_device_to_ibdev(struct device *device) +{ + return container_of(device, struct ib_device, dev); +} + +/** + * rdma_device_to_drv_device - Helper macro to reach back to driver's + * ib_device holder structure from device pointer. + * + * NOTE: New drivers should not make use of this API; This API is only for + * existing drivers who have exposed sysfs entries using + * rdma_set_device_sysfs_group(). + */ +#define rdma_device_to_drv_device(dev, drv_dev_struct, ibdev_member) \ + container_of(rdma_device_to_ibdev(dev), drv_dev_struct, ibdev_member) #endif /* IB_VERBS_H */ |