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IB/core: Introduce GID attribute get, put and hold APIs

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This patch introduces three APIs, rdma_get_gid_attr(),
rdma_put_gid_attr(), and rdma_hold_gid_attr() which expose the reference
counting for GID table entries to the entire stack. The kref counting is
based on the struct ib_gid_attr pointer

Later patches will convert more cache query function to return struct
ib_gid_attrs.

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
2018-06-05 08:40:17 +03:00
committed by Jason Gunthorpe
parent f4df9a7c34
commit bf399c2cad
2 changed files with 90 additions and 0 deletions
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4
include/rdma/ib_cache.h
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@@ -150,4 +150,8 @@ int ib_get_cached_port_state(struct ib_device *device,
enum ib_port_state *port_active);
bool rdma_is_zero_gid(const union ib_gid *gid);
const struct ib_gid_attr *rdma_get_gid_attr(struct ib_device *device,
u8 port_num, int index);
void rdma_put_gid_attr(const struct ib_gid_attr *attr);
void rdma_hold_gid_attr(const struct ib_gid_attr *attr);
#endif /* _IB_CACHE_H */