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authorMike Marciniszyn <mike.marciniszyn@intel.com>2016-12-07 19:34:06 -0800
committerDoug Ledford <dledford@redhat.com>2016-12-11 15:29:42 -0500
commitf2dc9cdce83c4aac2f8b6c803b0327df1c7d44a6 (patch)
treee56dc0fcd8120e4914638a656f02d8ba6b87f266 /include/rdma/rdmavt_qp.h
parent238b1862b4608ee8c28733be67e08f0447963090 (diff)
downloadlwn-f2dc9cdce83c4aac2f8b6c803b0327df1c7d44a6.tar.gz
lwn-f2dc9cdce83c4aac2f8b6c803b0327df1c7d44a6.zip
IB/rdmavt: Add a send completion helper
This is for use by client drivers to drive send completions into a CQ. A new exported table allows for the mapping of ib_wr_opcode into a ib_wc_opcode. Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/rdma/rdmavt_qp.h')
-rw-r--r--include/rdma/rdmavt_qp.h40
1 files changed, 39 insertions, 1 deletions
diff --git a/include/rdma/rdmavt_qp.h b/include/rdma/rdmavt_qp.h
index 2c5183ef0243..d78e99cf6c11 100644
--- a/include/rdma/rdmavt_qp.h
+++ b/include/rdma/rdmavt_qp.h
@@ -51,6 +51,7 @@
#include <rdma/rdma_vt.h>
#include <rdma/ib_pack.h>
#include <rdma/ib_verbs.h>
+#include <rdma/rdmavt_cq.h>
/*
* Atomic bit definitions for r_aflags.
*/
@@ -527,7 +528,44 @@ static inline void rvt_qp_wqe_unreserve(
}
}
-extern const int ib_rvt_state_ops[];
+extern const enum ib_wc_opcode ib_rvt_wc_opcode[];
+
+/**
+ * rvt_qp_swqe_complete() - insert send completion
+ * @qp - the qp
+ * @wqe - the send wqe
+ * @status - completion status
+ *
+ * Insert a send completion into the completion
+ * queue if the qp indicates it should be done.
+ *
+ * See IBTA 10.7.3.1 for info on completion
+ * control.
+ */
+static inline void rvt_qp_swqe_complete(
+ struct rvt_qp *qp,
+ struct rvt_swqe *wqe,
+ enum ib_wc_status status)
+{
+ if (unlikely(wqe->wr.send_flags & RVT_SEND_RESERVE_USED))
+ return;
+ if (!(qp->s_flags & RVT_S_SIGNAL_REQ_WR) ||
+ (wqe->wr.send_flags & IB_SEND_SIGNALED) ||
+ status != IB_WC_SUCCESS) {
+ struct ib_wc wc;
+
+ memset(&wc, 0, sizeof(wc));
+ wc.wr_id = wqe->wr.wr_id;
+ wc.status = status;
+ wc.opcode = ib_rvt_wc_opcode[wqe->wr.opcode];
+ wc.qp = &qp->ibqp;
+ wc.byte_len = wqe->length;
+ rvt_cq_enter(ibcq_to_rvtcq(qp->ibqp.send_cq), &wc,
+ status != IB_WC_SUCCESS);
+ }
+}
+
+extern const int ib_rvt_state_ops[];
struct rvt_dev_info;
int rvt_error_qp(struct rvt_qp *qp, enum ib_wc_status err);