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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-01 10:51:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-01 10:51:38 -0700
commitf470f8d4e702593ee1d0852871ad80373bce707b (patch)
tree85a67e65c5e5b9777639bd8f4c763a4cf8787e0e /drivers/infiniband/hw/cxgb4/ev.c
parentdc47d3810cdcb4f32bfa31d50f26af97aced0638 (diff)
parent504255f8d0480cf293962adf4bc3aecac645ae71 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (62 commits) mlx4_core: Deprecate log_num_vlan module param IB/mlx4: Don't set VLAN in IBoE WQEs' control segment IB/mlx4: Enable 4K mtu for IBoE RDMA/cxgb4: Mark QP in error before disabling the queue in firmware RDMA/cxgb4: Serialize calls to CQ's comp_handler RDMA/cxgb3: Serialize calls to CQ's comp_handler IB/qib: Fix issue with link states and QSFP cables IB/mlx4: Configure extended active speeds mlx4_core: Add extended port capabilities support IB/qib: Hold links until tuning data is available IB/qib: Clean up checkpatch issue IB/qib: Remove s_lock around header validation IB/qib: Precompute timeout jiffies to optimize latency IB/qib: Use RCU for qpn lookup IB/qib: Eliminate divide/mod in converting idx to egr buf pointer IB/qib: Decode path MTU optimization IB/qib: Optimize RC/UC code by IB operation IPoIB: Use the right function to do DMA unmap pages RDMA/cxgb4: Use correct QID in insert_recv_cqe() RDMA/cxgb4: Make sure flush CQ entries are collected on connection close ...
Diffstat (limited to 'drivers/infiniband/hw/cxgb4/ev.c')
-rw-r--r--drivers/infiniband/hw/cxgb4/ev.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/cxgb4/ev.c b/drivers/infiniband/hw/cxgb4/ev.c
index c13041a0aeba..397cb36cf103 100644
--- a/drivers/infiniband/hw/cxgb4/ev.c
+++ b/drivers/infiniband/hw/cxgb4/ev.c
@@ -42,6 +42,7 @@ static void post_qp_event(struct c4iw_dev *dev, struct c4iw_cq *chp,
{
struct ib_event event;
struct c4iw_qp_attributes attrs;
+ unsigned long flag;
if ((qhp->attr.state == C4IW_QP_STATE_ERROR) ||
(qhp->attr.state == C4IW_QP_STATE_TERMINATE)) {
@@ -72,7 +73,9 @@ static void post_qp_event(struct c4iw_dev *dev, struct c4iw_cq *chp,
if (qhp->ibqp.event_handler)
(*qhp->ibqp.event_handler)(&event, qhp->ibqp.qp_context);
+ spin_lock_irqsave(&chp->comp_handler_lock, flag);
(*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
+ spin_unlock_irqrestore(&chp->comp_handler_lock, flag);
}
void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe)
@@ -183,11 +186,14 @@ out:
int c4iw_ev_handler(struct c4iw_dev *dev, u32 qid)
{
struct c4iw_cq *chp;
+ unsigned long flag;
chp = get_chp(dev, qid);
- if (chp)
+ if (chp) {
+ spin_lock_irqsave(&chp->comp_handler_lock, flag);
(*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context);
- else
+ spin_unlock_irqrestore(&chp->comp_handler_lock, flag);
+ } else
PDBG("%s unknown cqid 0x%x\n", __func__, qid);
return 0;
}