From ddf922c31fedd19c5b89a269c35e5c8b68c64327 Mon Sep 17 00:00:00 2001 From: Kaike Wan Date: Wed, 23 Jan 2019 19:21:01 -0800 Subject: IB/hfi1, IB/rdmavt: Allow for extending of QP's s_ack_queue The OPFN protocol uses the COMPARE_SWAP request to exchange data between the requester and the responder and therefore needs to be stored in the QP's s_ack_queue when the request is received on the responder side. However, because the user does not know anything about the OPFN protocol, this extra entry in the queue cannot be advertised to the user. This patch adds an extra entry in a QP's s_ack_queue. Reviewed-by: Mike Marciniszyn Signed-off-by: Mitko Haralanov Signed-off-by: Kaike Wan Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- include/rdma/rdma_vt.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'include/rdma') diff --git a/include/rdma/rdma_vt.h b/include/rdma/rdma_vt.h index acb3bc96dfa7..168e40be183c 100644 --- a/include/rdma/rdma_vt.h +++ b/include/rdma/rdma_vt.h @@ -182,6 +182,7 @@ struct rvt_driver_params { u32 max_mad_size; u8 qos_shift; u8 max_rdma_atomic; + u8 extra_rdma_atomic; u8 reserved_operations; }; @@ -519,7 +520,14 @@ static inline unsigned rvt_get_npkeys(struct rvt_dev_info *rdi) */ static inline unsigned int rvt_max_atomic(struct rvt_dev_info *rdi) { - return rdi->dparms.max_rdma_atomic + 1; + return rdi->dparms.max_rdma_atomic + + rdi->dparms.extra_rdma_atomic + 1; +} + +static inline unsigned int rvt_size_atomic(struct rvt_dev_info *rdi) +{ + return rdi->dparms.max_rdma_atomic + + rdi->dparms.extra_rdma_atomic; } /* -- cgit v1.2.3-70-g09d2