diff options
| author | Ram Amrani <Ram.Amrani@Cavium.com> | 2017-01-24 13:50:36 +0200 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-01-24 15:34:43 -0500 |
| commit | 91bff997db2ec04f9ba761a55c21642f9803b06c (patch) | |
| tree | 996248c89762916f3d5be570a096adc722a9889c /drivers/infiniband/hw/qedr/qedr_cm.c | |
| parent | 59e8970b3798e4cbe575ed9cf4d53098760a2a86 (diff) | |
| download | op-kernel-dev-91bff997db2ec04f9ba761a55c21642f9803b06c.zip op-kernel-dev-91bff997db2ec04f9ba761a55c21642f9803b06c.tar.gz | |
RDMA/qedr: Remove CQ spinlock from CM completion handlers
There is only a single event queue that triggers the completion
events for the RDMA CM and it is being processed serially. This means
that inherently there can no parallelism of CQ completion handler
callbacks, hence the lock is redundant.
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/qedr/qedr_cm.c')
| -rw-r--r-- | drivers/infiniband/hw/qedr/qedr_cm.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/qedr/qedr_cm.c b/drivers/infiniband/hw/qedr/qedr_cm.c index 63890eb..00361f3 100644 --- a/drivers/infiniband/hw/qedr/qedr_cm.c +++ b/drivers/infiniband/hw/qedr/qedr_cm.c @@ -87,11 +87,8 @@ void qedr_ll2_tx_cb(void *_qdev, struct qed_roce_ll2_packet *pkt) qedr_inc_sw_gsi_cons(&qp->sq); spin_unlock_irqrestore(&qp->q_lock, flags); - if (cq->ibcq.comp_handler) { - spin_lock_irqsave(&cq->comp_handler_lock, flags); + if (cq->ibcq.comp_handler) (*cq->ibcq.comp_handler) (&cq->ibcq, cq->ibcq.cq_context); - spin_unlock_irqrestore(&cq->comp_handler_lock, flags); - } } void qedr_ll2_rx_cb(void *_dev, struct qed_roce_ll2_packet *pkt, @@ -113,11 +110,8 @@ void qedr_ll2_rx_cb(void *_dev, struct qed_roce_ll2_packet *pkt, spin_unlock_irqrestore(&qp->q_lock, flags); - if (cq->ibcq.comp_handler) { - spin_lock_irqsave(&cq->comp_handler_lock, flags); + if (cq->ibcq.comp_handler) (*cq->ibcq.comp_handler) (&cq->ibcq, cq->ibcq.cq_context); - spin_unlock_irqrestore(&cq->comp_handler_lock, flags); - } } static void qedr_destroy_gsi_cq(struct qedr_dev *dev, |
