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IB/ipath: Generate flush CQE when QP is in error state

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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: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Ralph Campbell 2007-08-25 16:48:29 -07:00 committed by Roland Dreier
parent 036be09ca5
commit c9cf7db2bc
1 changed files with 20 additions and 2 deletions
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22
drivers/infiniband/hw/ipath/ipath_verbs.c
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@ -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))
goto bail_inval;
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)