From 18bd90729237dc6ddbad01bc9618148224f03590 Mon Sep 17 00:00:00 2001 From: Yonatan Cohen Date: Mon, 13 Nov 2017 10:51:16 +0200 Subject: IB/uverbs: Add CQ moderation capability to query_device The query_device function can now obtain the maximum values for cq_max_count and cq_period, needed for CQ moderation. cq_max_count is a 16 bits number that determines the number of CQEs to accumulate before generating an event. cq_period is a 16 bits number that determines the timeout in micro seconds from the last event generated, upon which a new event will be generated even if cq_max_count was not reached. Signed-off-by: Yonatan Cohen Reviewed-by: Majd Dibbiny Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford --- include/uapi/rdma/ib_user_verbs.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/uapi/rdma') diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h index cfa09d6..5186fb1 100644 --- a/include/uapi/rdma/ib_user_verbs.h +++ b/include/uapi/rdma/ib_user_verbs.h @@ -125,6 +125,12 @@ struct ib_uverbs_comp_event_desc { __u64 cq_handle; }; +struct ib_uverbs_cq_moderation_caps { + __u16 max_cq_moderation_count; + __u16 max_cq_moderation_period; + __u32 reserved; +}; + /* * All commands from userspace should start with a __u32 command field * followed by __u16 in_words and out_words fields (which give the @@ -263,6 +269,7 @@ struct ib_uverbs_ex_query_device_resp { __u32 max_wq_type_rq; __u32 raw_packet_caps; struct ib_uverbs_tm_caps tm_caps; + struct ib_uverbs_cq_moderation_caps cq_moderation_caps; }; struct ib_uverbs_query_port { -- cgit v1.1