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IB/rdmavt: Add a send completion helper

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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>
This commit is contained in:
Mike Marciniszyn
2016-12-07 19:34:06 -08:00
committed by Doug Ledford
parent 238b1862b4
commit f2dc9cdce8
2 changed files with 56 additions and 1 deletions
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40
include/rdma/rdmavt_qp.h
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@@ -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);