RDMA/core: Introduce new GID table query API

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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>

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Avihai Horon 2020-09-23 19:50:14 +03:00 • committed by Jason Gunthorpe

parent 1c15b4f2a4

commit c4b4d548fa

3 changed files with 74 additions and 3 deletions

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66

drivers/infiniband/core/cache.c

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3

include/rdma/ib_cache.h

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8

include/uapi/rdma/ib_user_ioctl_verbs.h

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