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Commit c9cf7db2 authored by Ralph Campbell's avatar Ralph Campbell Committed by Roland Dreier
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IB/ipath: Generate flush CQE when QP is in error state 



Follow the IB spec. (C10-96) for post send which states that a flushed 
completion event should be generated for work requests posted when a QP
is in the error state.

Signed-off-by: default avatarRalph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 036be09c

drivers/infiniband/hw/ipath/ipath_verbs.c

+20 −2
Original line number Diff line number Diff line
@@ -230,6 +230,18 @@ void ipath_skip_sge(struct ipath_sge_state *ss, u32 length) 
	}

}



static void ipath_flush_wqe(struct ipath_qp *qp, struct ib_send_wr *wr)

{

	struct ib_wc wc;



	memset(&wc, 0, sizeof(wc));

	wc.wr_id = wr->wr_id;

	wc.status = IB_WC_WR_FLUSH_ERR;

	wc.opcode = ib_ipath_wc_opcode[wr->opcode];

	wc.qp = &qp->ibqp;

	ipath_cq_enter(to_icq(qp->ibqp.send_cq), &wc, 1);

}



/**

 * ipath_post_one_send - post one RC, UC, or UD send work request

 * @qp: the QP to post on
@@ -248,8 +260,14 @@ static int ipath_post_one_send(struct ipath_qp *qp, struct ib_send_wr *wr) 
	spin_lock_irqsave(&qp->s_lock, flags);



	/* Check that state is OK to post send. */

	if (!(ib_ipath_state_ops[qp->state] & IPATH_POST_SEND_OK))

	if (unlikely(!(ib_ipath_state_ops[qp->state] & IPATH_POST_SEND_OK))) {

		if (qp->state != IB_QPS_SQE && qp->state != IB_QPS_ERR)

			goto bail_inval;

		/* C10-96 says generate a flushed completion entry. */

		ipath_flush_wqe(qp, wr);

		ret = 0;

		goto bail;

	}



	/* IB spec says that num_sge == 0 is OK. */

	if (wr->num_sge > qp->s_max_sge)