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| author | Leon Romanovsky <leonro@mellanox.com> | 2019-02-03 14:55:50 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-02-08 16:50:58 -0700 |
| commit | 30471d4b20335d9bd9ae9b2382a1e1e97d18d86d (patch) | |
| tree | e467a16ce8529808d9bb36acaec3c52c2c5ba82e /include/rdma | |
| parent | c66f67414c1f88554485bb2a0abf8b5c0d741de7 (diff) | |
| download | linux-30471d4b20335d9bd9ae9b2382a1e1e97d18d86d.tar.gz linux-30471d4b20335d9bd9ae9b2382a1e1e97d18d86d.tar.bz2 linux-30471d4b20335d9bd9ae9b2382a1e1e97d18d86d.zip | |
RDMA/core: Share driver structure size with core
Add new macros to be used in drivers while registering ops structure and
IB/core while calling allocation routines, so drivers won't need to
perform kzalloc/kfree in their paths.
The change in allocation stage allows us to initialize common fields prior
to calling to drivers (e.g. restrack).
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include/rdma')
| -rw-r--r-- | include/rdma/ib_verbs.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 2e1f1e885ee5..e29eae4aec84 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -2264,6 +2264,19 @@ struct ib_counters_read_attr { struct uverbs_attr_bundle; +#define INIT_RDMA_OBJ_SIZE(ib_struct, drv_struct, member) \ + .size_##ib_struct = \ + (sizeof(struct drv_struct) + \ + BUILD_BUG_ON_ZERO(offsetof(struct drv_struct, member)) + \ + BUILD_BUG_ON_ZERO( \ + !__same_type(((struct drv_struct *)NULL)->member, \ + struct ib_struct))) + +#define rdma_zalloc_drv_obj(ib_dev, ib_type) \ + ((struct ib_type *)kzalloc(ib_dev->ops.size_##ib_type, GFP_KERNEL)) + +#define DECLARE_RDMA_OBJ_SIZE(ib_struct) size_t size_##ib_struct + /** * struct ib_device_ops - InfiniBand device operations * This structure defines all the InfiniBand device operations, providers will |