Messages in this thread Patch in this message | | | From | Joachim Fenkes <> | Subject | [PATCH 13/13] IB/ehca: Improve latency by unlocking the SQ/RQ after triggering the hardware | Date | Mon, 9 Jul 2007 15:33:52 +0200 |
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From: Hoang-Nam Nguyen <hnguyen@de.ibm.com>
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> --- drivers/infiniband/hw/ehca/ehca_reqs.c | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/infiniband/hw/ehca/ehca_reqs.c b/drivers/infiniband/hw/ehca/ehca_reqs.c index fd3ba22..61da65e 100644 --- a/drivers/infiniband/hw/ehca/ehca_reqs.c +++ b/drivers/infiniband/hw/ehca/ehca_reqs.c @@ -407,10 +407,9 @@ int ehca_post_send(struct ib_qp *qp, } /* eof for cur_send_wr */ post_send_exit0: - /* UNLOCK the QUEUE */ - spin_unlock_irqrestore(&my_qp->spinlock_s, flags); iosync(); /* serialize GAL register access */ hipz_update_sqa(my_qp, wqe_cnt); + spin_unlock_irqrestore(&my_qp->spinlock_s, flags); return ret; } @@ -473,9 +472,9 @@ static int internal_post_recv(struct ehca_qp *my_qp, } /* eof for cur_recv_wr */ post_recv_exit0: - spin_unlock_irqrestore(&my_qp->spinlock_r, flags); iosync(); /* serialize GAL register access */ hipz_update_rqa(my_qp, wqe_cnt); + spin_unlock_irqrestore(&my_qp->spinlock_r, flags); return ret; } -- 1.5.2
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