xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

RDMA: Introduce and use rdma_device_to_ibdev()

Browse Source 
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>
This commit is contained in:
Parav Pandit
2018-12-18 14:15:56 +02:00
committed by Jason Gunthorpe
parent ea4baf7f11
commit 5474723115
17 changed files with 106 additions and 74 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
include/rdma/ib_verbs.h
View File

@@ -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 */