diff options
| author | Ralph Campbell <ralph.campbell@qlogic.com> | 2007-08-25 16:48:29 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-10-09 20:50:29 -0700 |
| commit | c9cf7db2bca9180f5888eebc23dc607666a9685b (patch) | |
| tree | 5503c082c930bf69d1f0b0b05d131e4e03347b23 /drivers/infiniband/hw/ipath/ipath_verbs.c | |
| parent | 036be09ca55ee8512c05742f4f6b88911d012a90 (diff) | |
| download | lwn-c9cf7db2bca9180f5888eebc23dc607666a9685b.tar.gz lwn-c9cf7db2bca9180f5888eebc23dc607666a9685b.zip | |
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: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_verbs.c')
| -rw-r--r-- | drivers/infiniband/hw/ipath/ipath_verbs.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c index 3cc82b62b3c5..495194bb84a5 100644 --- a/drivers/infiniband/hw/ipath/ipath_verbs.c +++ b/drivers/infiniband/hw/ipath/ipath_verbs.c @@ -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) |