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| author | Avihai Horon <avihaih@nvidia.com> | 2020-09-23 19:50:14 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-10-01 21:20:11 -0300 |
| commit | c4b4d548fabc15b9c5db9f61204dd0c608414d2d (patch) | |
| tree | 3ed74d1c5e8f0a37da88fbad9d0febdbfb157ac3 /include | |
| parent | 1c15b4f2a42ff6697767c22c8ff5f9bcc22fdbe5 (diff) | |
| download | lwn-c4b4d548fabc15b9c5db9f61204dd0c608414d2d.tar.gz lwn-c4b4d548fabc15b9c5db9f61204dd0c608414d2d.zip | |
RDMA/core: Introduce new GID table query API
Introduce rdma_query_gid_table which enables querying all the GID tables
of a given device and copying the attributes of all valid GID entries to a
provided buffer.
This API provides a faster way to query a GID table using single call and
will be used in libibverbs to improve current approach that requires
multiple calls to open, close and read multiple sysfs files for a single
GID table entry.
Link: https://lore.kernel.org/r/20200923165015.2491894-4-leon@kernel.org
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/rdma/ib_cache.h | 3 | ||||
| -rw-r--r-- | include/uapi/rdma/ib_user_ioctl_verbs.h | 8 |
2 files changed, 11 insertions, 0 deletions
diff --git a/include/rdma/ib_cache.h b/include/rdma/ib_cache.h index 66a8f369a2fa..bae29f50adff 100644 --- a/include/rdma/ib_cache.h +++ b/include/rdma/ib_cache.h @@ -110,5 +110,8 @@ 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); +ssize_t rdma_query_gid_table(struct ib_device *device, + struct ib_uverbs_gid_entry *entries, + size_t max_entries); #endif /* _IB_CACHE_H */ diff --git a/include/uapi/rdma/ib_user_ioctl_verbs.h b/include/uapi/rdma/ib_user_ioctl_verbs.h index fb8cdb38198b..14820082de5e 100644 --- a/include/uapi/rdma/ib_user_ioctl_verbs.h +++ b/include/uapi/rdma/ib_user_ioctl_verbs.h @@ -251,4 +251,12 @@ enum rdma_driver_id { RDMA_DRIVER_SIW, }; +struct ib_uverbs_gid_entry { + __aligned_u64 gid[2]; + __u32 gid_index; + __u32 port_num; + __u32 gid_type; + __u32 netdev_ifindex; /* It is 0 if there is no netdev associated with it */ +}; + #endif |