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authorRalph Campbell <ralph.campbell@qlogic.com>2007-06-18 14:24:43 -0700
committerRoland Dreier <rolandd@cisco.com>2007-07-09 20:12:26 -0700
commitdb5518cd09c21f0fa70af0a4ca38badd90622c9e (patch)
treec8183dc863a03411bdb2f8737870ea3ed743d8c8 /drivers/infiniband/hw/ipath/ipath_verbs.c
parentIB/ipath: Fix RDMA read retry code (diff)
downloadlinux-dev-db5518cd09c21f0fa70af0a4ca38badd90622c9e.tar.xz
linux-dev-db5518cd09c21f0fa70af0a4ca38badd90622c9e.zip
IB/ipath: Wait for PIO available interrupt
The send function is called when posting new send work requests. There is no point in trying to send a packet if the QP is already waiting for a HW send buffer so don't clear the busy bit until the buffer available interrupt happens. 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.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c
index 04294ca0a81f..cd79a8ca5104 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.c
@@ -948,6 +948,7 @@ int ipath_ib_piobufavail(struct ipath_ibdev *dev)
qp = list_entry(dev->piowait.next, struct ipath_qp,
piowait);
list_del_init(&qp->piowait);
+ clear_bit(IPATH_S_BUSY, &qp->s_busy);
tasklet_hi_schedule(&qp->s_task);
}
spin_unlock_irqrestore(&dev->pending_lock, flags);