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IB/uverbs: Add read counters support

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This patch exposes the read counters verb to user space applications.  By
that verb the user can read the hardware counters which are associated
with the counters object.

The application needs to provide a sufficient memory to hold the
statistics.

Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Raed Salem <raeds@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Raed Salem 2018-05-31 16:43:34 +03:00 • committed by Leon Romanovsky
parent 51d7a53874
commit ebb6796bd3
2 changed files with 65 additions and 1 deletions
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7
include/uapi/rdma/ib_user_ioctl_cmds.h
View file

@ -140,9 +140,16 @@ enum uverbs_attrs_destroy_counters_cmd_attr_ids {
UVERBS_ATTR_DESTROY_COUNTERS_HANDLE,
};
enum uverbs_attrs_read_counters_cmd_attr_ids {
UVERBS_ATTR_READ_COUNTERS_HANDLE,
UVERBS_ATTR_READ_COUNTERS_BUFF,
UVERBS_ATTR_READ_COUNTERS_FLAGS,
};
enum uverbs_methods_actions_counters_ops {
UVERBS_METHOD_COUNTERS_CREATE,
UVERBS_METHOD_COUNTERS_DESTROY,
UVERBS_METHOD_COUNTERS_READ,
};
#endif